How to Weatherproof a Cat Door for Winter: 7 Proven Fixes (2026)

There’s a particular kind of cold that only a Canadian winter can deliver — the kind that doesn’t politely knock on your front door, it slides in sideways through a two-inch gap in your cat flap and pools around your ankles while you’re trying to watch TV. If you’ve ever caught yourself wondering how to weatherproof cat door winter drafts before your next heating bill lands, you’re in good company. It’s one of the most searched home-comfort questions every November, right alongside “why is my furnace running constantly.”

A cat door, in plain terms, is a small hinged or flexible panel installed in an exterior door or wall that lets a cat pass freely in and out without a human opening the door — and in winter, an unsealed one behaves less like a convenience and more like a permanently cracked window. The good news is that weatherproofing one doesn’t require ripping out your whole door system. Depending on your flap, your climate zone, and your patience for a Saturday-afternoon project, the fix can be a C$15 roll of foam tape or a full magnetic-seal pet door swap.

This guide walks through seven real, currently available products — from budget DIY seals to premium insulated flap systems — plus the comparison data, the honest trade-offs, and the step-by-step guidance to actually get your home warm again before the next cold snap rolls through. Everything here is grounded in verified product specifications and genuine aggregated customer feedback, not marketing copy.

Quick Comparison: 7 Ways to Weatherproof a Cat Door This Winter

Before diving into the deep-dive analysis, here’s the scannable version for anyone short on time.

Looking at the spread above, there’s a clear split between products that replace your entire cat door and accessories that seal what you already have. If your existing flap is structurally sound but drafty around the edges, Frost King Self-Stick Foam Weatherstripping Tape or the MAGZO Magnetic Thermal Door Curtain solve the problem for under C$80 combined. If your flap itself is the weak link — cracked vinyl, no magnets, a frame that’s pulled away from the door — a full swap like the PetSafe Extreme Weather Pet Door or Endura Flap Cat Door pays for itself over a few winters in reduced heat loss. Budget-conscious households should note that CEESC Weatherproof Pet Door delivers a surprising amount of the same magnetic-seal technology at roughly a fifth of the premium price, with the trade-off being less durable PVC construction long-term.

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The Top 7 Cat Door Draft Stopper & Winter Flap Solutions for 2026

Whether you need a full replacement or a targeted cat door draft stopper for an existing flap, these seven options cover every budget and climate scenario a Canadian home is likely to face.

1. PetSafe Extreme Weather Pet Door — triple-flap insulation for extreme temperature swings

The standout feature here is the three-flap thermal barrier system, which does something single-flap doors physically can’t: it creates two dead-air pockets instead of one gap for heat to escape through. Independent testing cited by the manufacturer rates it roughly 3.5 times more energy efficient than a standard single-flap pet door, and it’s built to hold up in conditions ranging from well below freezing to summer heat extremes. In practice, that means a cat can nose through the outer flap, pause in the insulated middle chamber, then push the inner flap — and cold air never gets a clean, unbroken path into your hallway.

Based on the spec comparison with cheaper single-flap alternatives, this is the pick for households in genuinely harsh winter zones — rural Alberta, the Prairies, or anywhere with regular sub-minus-20°C (minus-4°F) nights. Reviewers consistently report a noticeable drop in the draft they feel standing near the door, though several also note the three-flap resistance takes small kittens a week or two to learn compared to a simple single flap.

Pros:

• ✅ Triple-flap design cuts thermal loss far more than single-flap doors
• ✅ Rated for both extreme cold and extreme heat conditions
• ✅ Snap-in closing panel available for nighttime lockout

Cons:

• ❌ Learning curve for small or nervous cats
• ❌ Higher price point than basic flap replacements

At around C$180 to C$260 depending on size and retailer, the PetSafe Extreme Weather Pet Door sits at the upper-mid end of the market — a fair trade for households where winter isn’t a mild inconvenience but a five-month reality.

2. Endura Flap Cat Door — best magnetic seal for wind-driven cold

What most buyers overlook about this model is that it isn’t insulated in the traditional foam-and-plastic sense — the flap itself is a dual-layer polyolefin polymer engineered to stay flexible down to around minus-40°C (minus-40°F), which matters because cheap vinyl flaps go stiff and start gapping at the hinge exactly when you need the seal most. A three-sided magnetic closure pulls the flap flat against the frame after every pass, and the company rates it to resist wind gusts up to 80 km/h (50 mph) without blowing open.

This is the flap to choose if your cat door faces a prevailing wind direction, or if you live somewhere exposed — think open prairie lots, lakefront properties, or anywhere a north-facing door catches the brunt of a January system. The trade-off is cost and the fact that it’s a full door replacement, not a retrofit accessory. Reviewers consistently note the audible “snap” of the magnets closing as reassurance that the seal engaged, and long-term owners report the flap staying pliable through multiple winters without cracking — a common failure point on cheaper vinyl doors.

Pros:

• ✅ Stays flexible in extreme cold instead of stiffening and gapping
• ✅ Three-sided magnetic seal resists strong wind
• ✅ Backed by a lifetime warranty on construction

Cons:

• ❌ Premium price relative to standard pet doors
• ❌ Installation is more involved than accessory-style fixes

Expect to pay in the C$220 to C$320 range depending on flap size, which puts it at the premium end — but for a door facing constant wind exposure, the ROI shows up fast in reduced furnace runtime.

3. SureFlap Microchip Cat Flap Connect — best for multi-cat homes needing selective entry

The standout advantage isn’t about weatherproofing at all — it’s the microchip-reading selective entry, which only unlocks for your own cats and keeps neighbourhood strays and raccoons out. That security layer matters because a lot of Canadian cat owners are weighing a trade-off between “a door that seals well” and “a door that only lets the right animals through,” and this is the strongest option on the market for the latter.

Here’s what to weigh honestly, though: this is also the one product on this list where the built-in cat flap draught excluder is a known weak point. Aggregated owner reviews repeatedly flag that the factory draught excluder brush sits too far recessed to make real contact, leaving a persistent cold-air gap around the swinging door even after correct installation. The company has, in some cases, shipped an upgraded draught-excluder swing door to owners who report the issue directly, which suggests it’s a recognized limitation rather than an isolated defect. If you buy this flap for its security features, budget for adding a supplementary seal — Frost King tape around the frame, discussed later in this guide, closes that gap effectively.

Pros:

• ✅ Microchip recognition keeps out strays and wildlife
• ✅ Adjustable curfew and one-way locking modes
• ✅ Reliable customer support for hardware issues

Cons:

• ❌ Factory draught excluder frequently reported as inadequate
• ❌ May require an aftermarket seal upgrade for real winter performance

Priced around C$160 to C$230, this flap earns its spot for the access-control feature set, not raw insulation — pair it with a DIY seal fix if you’re in a cold climate.

4. CEESC Weatherproof Pet Door — best budget full-door swap

The short version: this is what a magnetic-seal pet door looks like when the goal is affordability instead of premium materials. The soft, transparent PVC flap uses three-sided magnets similar in concept to pricier aluminum-framed doors, and it includes a snap-in closing panel so you can fully lock the opening overnight without buying a separate accessory.

Key numbers worth knowing: the frame accommodates door thicknesses in roughly the 3 to 7 cm (1.25 to 2.75 inch) range depending on size ordered, and installation uses a plastic frame rather than aluminum — which is exactly why it’s a fraction of the price of the Endura Flap Cat Door. Based on the spec comparison, that plastic construction is also the trade-off: it won’t hold up to years of sub-zero flexing the way a purpose-engineered polymer flap does, and the frame is more prone to warping in intense heat-cold cycling over several seasons. For renters, first apartments, or anyone testing whether a sealed flap solves their draft problem before committing to a premium unit, this is a low-risk way to find out.

Pros:

• ✅ Magnetic three-sided flap seal at a fraction of premium pricing
• ✅ Snap-in closing panel included for full lockout
• ✅ Straightforward installation with included template

Cons:

• ❌ Plastic frame less durable than aluminum long-term
• ❌ Flap material may stiffen faster in deep cold than premium polymers

At roughly C$40 to C$65, the CEESC Weatherproof Pet Door is the clear value pick for anyone who wants a genuine upgrade over a bare, unsealed flap without the premium price tag.

5. MAVRICTECH Magnetic Double-Flap Cat Door — best double-seal option under C$75

The standout feature is right in the name: a double magnetic flap rather than a single layer, which — much like the triple-flap PetSafe door above but at a fraction of the cost — creates a second barrier of resistance against outside air. The steel frame is also a meaningful upgrade over plastic-framed budget doors, giving it better rigidity against warping.

What the spec sheet won’t tell you, but reviewers note, is that the double-flap resistance means slightly more effort for a cat to push through compared to a single-flap door, which most cats adapt to within a few days but can be a genuine hurdle for elderly or arthritic cats. For a healthy adult cat in a home where the exterior wall or door catches regular wind, the extra sealing layer is a meaningfully better trade than a single flap at a similar price point.

Pros:

• ✅ Double magnetic flap adds a real second air barrier
• ✅ Steel frame resists warping better than plastic alternatives
• ✅ Two sliding locks for flexible access control

Cons:

• ❌ Extra resistance may be difficult for senior or arthritic cats
• ❌ Rated only for cats up to roughly 10 kg (22 lb)

Typically priced C$45 to C$75, this is a strong middle-ground pick between the ultra-budget CEESC door and the premium Endura Flap system.

6. MAGZO Magnetic Thermal Door Curtain — best DIY pet door winter cover

Rather than replacing the cat flap itself, this product covers the entire door opening around it — a heavy oxford-and-cotton curtain with a magnetic centre seam that closes automatically after your cat passes through, similar in concept to a strip-curtain walk-in cooler door but sized and insulated for a home entryway. As a pet door winter cover, it’s a genuinely different strategy from every other product on this list: instead of sealing the flap, it adds an entire second insulated layer between your cat door and the room.

Based on the spec comparison, the trapped-air principle here mirrors how a storm door works alongside a primary door — two layers with a pocket of still air between them insulate better than either layer alone. Reviewers consistently describe it as most effective when paired with an existing cat flap that’s structurally fine but simply drafty, rather than as a standalone fix for a badly damaged door. It’s also fully removable each spring, which some households prefer over a permanent hardware swap.

Pros:

• ✅ Adds a full second insulating layer over the existing flap
• ✅ Magnetic self-closing design lets pets pass hands-free
• ✅ No cutting or permanent door modification required

Cons:

• ❌ Adds bulk and reduces some visual light through the doorway
• ❌ Not a substitute for fixing a genuinely broken flap seal

Expect to spend C$45 to C$80 for a properly sized curtain, making this one of the most flexible options for renters who can’t modify the door itself.

7. Frost King Self-Stick Foam Weatherstripping Tape — best cheap fix for frame gaps

This is the cat door draft stopper most people reach for last, after already buying a flap — and honestly, it should often be the first thing tried. The self-adhesive EPDM or vinyl foam compresses into narrow gaps around the pet door frame, exactly the kind of quarter-inch gap that shows up between a cat flap frame and an exterior door after a few seasons of temperature-driven expansion and contraction.

Here’s what most buyers overlook: this tape isn’t a cat-door-specific product at all — it’s the same general weatherstripping used around window sashes and door jambs throughout the house, and applying it around a pet door frame follows the exact same principle. The trade-off is durability. Reviewers of similar foam tapes consistently note that standard foam compresses and loses effectiveness faster in high-friction zones (like a spot cats brush against daily) than around a static window frame, so plan to inspect and possibly reapply it every one to two seasons.

Pros:

• ✅ Extremely inexpensive relative to any full door replacement
• ✅ Works in sub-freezing temperatures without hardening
• ✅ Fast to apply with no tools required

Cons:

• ❌ Compresses and needs replacing faster in high-contact areas
• ❌ Only addresses frame gaps, not a fundamentally worn-out flap

At C$10 to C$20 per roll, this is the lowest-cost entry point on the entire list — and often the single highest-ROI fix if your existing cat door’s only real problem is a gap at the frame.

Compare All 7 at a Glance

The pattern across this table is worth calling out directly: price correlates fairly closely with how many independent barriers a product creates against moving air, whether that’s flap layers, magnet points, or an added curtain. Frost King Self-Stick Foam Weatherstripping Tape and the MAGZO Magnetic Thermal Door Curtain are the two products here that work as add-ons to an existing flap rather than replacements, which is why combining one of them with a mid-tier flap like MAVRICTECH often beats buying the single most expensive door outright. For most Canadian homes, a reasonable strategy is to spend where the wind actually hits — a wind-exposed exterior wall justifies the Endura Flap Cat Door, while a sheltered porch entry may only need the CEESC door plus a roll of foam tape.

How to Insulate an Existing Cat Door Without Replacing It

Not everyone needs to buy a new flap, and this is genuinely one of the most requested fixes: how do you insulate existing cat door hardware that’s otherwise working fine? The answer usually comes down to three targeted moves, tackled in order of effort.

First, inspect the frame-to-door seal. Run a hand around the outer edge of the flap frame on a windy day — if you feel moving air, that’s frame separation, not flap failure, and it’s solved with a strip of Frost King Self-Stick Foam Weatherstripping Tape pressed into the gap. This alone resolves a surprising share of drafty-cat-door complaints, since most factory installations don’t account for the door itself shrinking slightly in cold, dry winter air.

Second, address the flap seal itself. If the plastic or vinyl flap has gone stiff and no longer lies flat — a common failure after two or three winters — a magnetic edge kit or a full flap replacement (many manufacturers, including SureFlap, sell upgraded swing doors separately) restores the seal without replacing the whole frame.

Third, for genuinely old or single-pane flaps with no realistic upgrade path, add a removable winter cat flap cover like the MAGZO Magnetic Thermal Door Curtain over the entire opening. This doesn’t fix the flap itself, but it adds a second insulating barrier that catches whatever the flap misses — the same logic that makes a storm window effective even over an old single-pane window. According to Natural Resources Canada’s air leakage control guidance, comprehensive sealing of small gaps throughout a home — not just one big fix — is consistently the most cost-effective retrofit homeowners can do, and a cat door is exactly the kind of overlooked gap that guidance is describing.

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Real Canadian Homes, Real Winter Cat Doors: 3 Scenarios

The apartment renter in Toronto. She’s got one indoor cat, a building that doesn’t allow drilling into the exterior door, and a north-facing balcony screen door with a basic vinyl flap that whistles every time the wind picks up off the lake. For this situation, permanent hardware isn’t an option, so the MAGZO Magnetic Thermal Door Curtain paired with Frost King Self-Stick Foam Weatherstripping Tape around the existing frame solves roughly the same problem a full door swap would — without a single screw going into the building’s door.

The rural Alberta family with three barn cats and two house cats. Wind exposure is constant, temperatures regularly sit below minus-25°C (minus-13°F) for weeks at a stretch, and the existing single-flap door is visibly bowing at the hinge. This is the textbook case for the Endura Flap Cat Door or the PetSafe Extreme Weather Pet Door — the up-front cost is easily justified by both the energy savings and the fact that a failing flap in that climate is a genuine animal-welfare issue, not just a comfort one.

The Ottawa household juggling a food-stealing dog and a nervous rescue cat. Their priority isn’t primarily thermal — it’s making sure only the cat, not the 30-kilogram Labrador, gets through the flap, while also cutting the draft that’s been driving up their gas bill since October. The SureFlap Microchip Cat Flap Connect solves the access-control half of that equation, and adding foam tape around the frame closes the gap the factory draught excluder leaves behind.

Common Cat Door Draft Problems and How to Solve Them

Most winter cat door complaints fall into a handful of repeatable categories, and each has a specific fix rather than a one-size-fits-all answer.

Problem: visible or felt airflow around the flap frame. This is almost always frame separation from seasonal wood or vinyl shrinkage, and the fix is targeted frame sealing — this is the core of how to seal cat door cold weather DIY projects usually go, using foam or rubber weatherstripping pressed into the gap rather than caulk, which would prevent the flap from being removed later for cleaning or replacement.

Problem: the flap won’t sit flush anymore. Over several winters, cheap vinyl flaps lose their flexibility and start curling at the edges, breaking whatever seal existed. The fix is a flap replacement — either an OEM part from the flap’s manufacturer or a full unit swap like the CEESC Weatherproof Pet Door.

Problem: cold air pooling at floor level near the door, even with a sealed flap. This often isn’t the cat door at all — it’s the door sweep or threshold beneath the main door failing separately, and treating the cat flap in isolation won’t fix it. Check both.

Problem: condensation or frost building up inside the flap frame. This points to a genuine insulation gap in the frame material itself, not just an air leak, and is one of the stronger arguments for upgrading to a purpose-built cold-climate flap like the Endura Flap Cat Door, whose polymer flap is specifically engineered to resist this kind of cold-bridging.

Problem: the cat avoids using the door once a heavier or double flap is installed. This is a training issue, not a defect — propping the flap slightly open with tape for the first several days, combined with treats placed just past the opening, resolves it in the large majority of cases according to aggregated owner reports across multiple flap brands.

How to Choose the Right Winter Cat Flap Cover for Your Home

Cutting through the marketing noise, here’s the actual decision process, broken into concrete steps.

1. Identify whether the problem is the flap or the frame. Feel around both separately on a windy day — this single step determines whether you need an accessory fix or a full replacement.
2. Check your climate zone’s typical winter lows. Homes regularly seeing minus-25°C (minus-13°F) or colder need a purpose-built cold-climate flap like Endura Flap Cat Door; milder coastal winters can often get by with a budget door plus tape.
3. Factor in wind exposure, not just temperature. A door facing prevailing winds loses far more heat than an identical door in a sheltered spot, regardless of the thermometer reading.
4. Decide if you need selective entry. Multi-cat or multi-pet households, or anyone dealing with neighbourhood strays, should weigh the SureFlap Microchip Cat Flap Connect despite its draft trade-offs.
5. Set a realistic budget band. A C$10 roll of tape and a C$300 magnetic door solve fundamentally different severities of the same problem — match the spend to the actual gap you’re dealing with.
6. Consider whether you’re renting. Non-permanent solutions like the MAGZO Magnetic Thermal Door Curtain avoid landlord conflicts entirely.
7. Plan for your cat’s adjustment period. Any change in flap resistance — magnets, double layers, or a curtain — needs a few days of training regardless of which product you pick.

Cat Flap Draught Excluder vs Full Pet Door Replacement: Which Wins in a Canadian Winter?

This is the debate that decides most of the budget question, so it’s worth walking through honestly rather than defaulting to “buy the expensive one.”

A cat flap draught excluder — whether that’s foam tape, a brush seal, or a magnetic curtain — treats the symptom. It’s fast, cheap, and reversible, and for a door whose core hardware is sound, it’s often genuinely sufficient. The Frost King Self-Stick Foam Weatherstripping Tape and MAGZO Magnetic Thermal Door Curtain both fall into this category, and reviewers of comparable products consistently describe them as solving the problem “well enough” without requiring a weekend project.

A full pet door replacement treats the cause. If the underlying flap material has degraded, the frame has warped, or the door was simply never designed for the climate it’s installed in, no amount of tape fixes that permanently — it’s a seasonal patch on a structural problem. This is where products like the PetSafe Extreme Weather Pet Door and Endura Flap Cat Door earn their higher price: they’re solving the actual insulation deficit rather than working around it.

The honest verdict: if your flap is under three years old and the draft is coming from the frame, start with a draught excluder — it’s the lower-risk, lower-cost move, and it may fully solve the problem. If your flap is visibly warped, cracked, or was a budget builder-grade unit to begin with, skip straight to a replacement, because the excluder will only mask a problem that keeps getting worse.

Benefits vs a Traditional Uncovered Cat Flap

Looking at the comparison above, the gap between “traditional” and “weatherproofed” isn’t cosmetic — it shows up directly in monthly heating costs and in how often cold air is noticeably moving through a room. Households that treat their cat door as a minor detail often end up troubleshooting a mysteriously drafty living room for years before realizing the actual source was a 15 cm by 20 cm (6 by 8 inch) opening they’d stopped thinking about entirely.

Common Mistakes When Weatherproofing a Cat Door

Even well-intentioned DIY fixes go wrong in predictable ways. Caulking around a flap frame is one of the most frequent — it seals the gap permanently, which sounds good until you need to remove the flap for cleaning or replacement and discover it’s now bonded to the door. Weatherstripping or removable foam tape avoids this entirely.

Another common mistake is buying a curtain-style pet door winter cover sized for a human doorway and trying to fit it around a small cat flap opening — the magnets and hem weights are calibrated for a much larger surface area and won’t seal properly at a smaller scale. Measure the actual door or wall opening, not just the flap itself, before ordering.

A third mistake is assuming a smart or selective-entry flap automatically means better insulation. As covered above, security features and thermal performance are separate engineering problems, and a flap can excel at one while lagging at the other — the SureFlap Microchip Cat Flap Connect is the clearest example of this trade-off on the market today.

Finally, many households skip inspecting the flap seasonally, treating a winterizing fix as a one-time job. Foam tape compresses, magnets weaken slightly with repeated slamming, and vinyl flaps stiffen year over year — an annual autumn check, ideally before the first hard frost, catches problems while they’re still a five-minute fix.

What to Expect: Real-World Winter Performance

Specs on a box only tell part of the story, so here’s what actually changes day to day once a cat door is properly sealed. The most immediate difference households report is at floor level near the door — that specific cold-air pooling sensation largely disappears within the first cold snap after installation. Furnaces and baseboard heaters cycle less frequently in that room specifically, since they’re no longer fighting a constant, localized heat leak.

The second noticeable change is sound. Wind whistling through a gappy flap frame is a genuinely common complaint in aggregated reviews, and it typically resolves alongside the draft itself once a proper seal is in place. What doesn’t change, and shouldn’t be expected to, is total house-wide heating performance from a cat door fix alone — a cat door is one leak among many, and per Natural Resources Canada’s home energy research, air leakage broadly (not any single opening) is what drives comfort and bills, so this fix works best as one piece of a wider draft-sealing routine that also covers windows and main entry doors.

Long-Term Cost & Maintenance of a Weatherproofed Cat Door

The math on this is more favourable than it first appears. According to energy efficiency research on weatherstripping, improperly sealed and weatherized homes can lose 30 to 40 percent of their heating and cooling energy through air leaks generally — and while a single cat door is a small fraction of a home’s total leakage, it’s also one of the cheapest leaks to close relative to the size of the gap it represents.

A C$15 roll of foam tape, reapplied roughly once a year, costs under C$50 over a typical flap’s lifespan. A premium magnetic-seal door like the Endura Flap Cat Door, at C$250 or so upfront, requires essentially no ongoing maintenance beyond an occasional wipe-down of the magnetic strips, and the flexible polymer flap is designed to outlast several winters without replacement — meaning the total cost of ownership over five or six years can actually undercut a household that buys and replaces a series of cheap vinyl flaps as they crack and warp. Budget-tier options like the CEESC Weatherproof Pet Door sit in between: lower upfront cost, but a higher likelihood of needing a flap or frame replacement within three to four winters based on the plastic construction discussed earlier in this guide.

Safety, Regulations & Cold-Weather Compliance for Canadian Homes

There’s no federal building code specifically governing pet doors in Canada, so most of what matters here falls under general home energy and animal welfare guidance rather than formal regulation. That said, a poorly sealed cat door isn’t purely a comfort issue — it’s also a factor in whether an indoor-outdoor cat has a genuinely warm space to retreat to. The Ontario SPCA’s cold weather pet safety guidance specifically notes that cats are among the animals most vulnerable to cold stress and frostbite, and recommends ensuring pets have a warm space away from drafts — which is a direct argument for treating a drafty cat door as a welfare consideration, not just a heating-bill one.

Beyond that, a few practical safety notes apply regardless of which product is chosen: locking or closing panels should be used overnight during severe cold snaps if the cat is kept indoors after dark, magnetic flap closures should be checked periodically to confirm they haven’t weakened, and any DIY sealing material should remain non-toxic and pet-safe, which standard EPDM and vinyl foam weatherstripping products are.

Frequently Asked Questions

Conclusion

A drafty cat door is one of those household problems that’s easy to live with for years simply because it’s small, low, and easy to forget about — right up until a January cold snap turns it into the coldest spot in the house. The fix doesn’t have to be dramatic. For a lot of homes, a roll of Frost King Self-Stick Foam Weatherstripping Tape and an honest look at where the cold air is actually coming from solves most of the problem in an afternoon. For homes facing real Prairie or Northern winters, or a door that catches constant wind, investing in a purpose-built system like the Endura Flap Cat Door or PetSafe Extreme Weather Pet Door pays for itself in both comfort and reduced heating costs.

Whichever direction fits your home and budget, the underlying principle from every product and every piece of research cited in this guide is the same: small, targeted gaps like a cat door are disproportionately cheap to fix relative to how much comfort they cost when left alone. Give your cat door the same attention you’d give a drafty window, and the rest of the room tends to sort itself out.

✨ Ready to Stop the Draft for Good?

🔍 Browse the products above and pick the fix that matches your home’s winter — whether that’s a C$15 roll of tape or a full magnetic-seal door. Click through to check current pricing and availability, and give your home (and your cat) a genuinely warmer season.

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