Whole-Home Weatherstripping
Whole-home weatherstripping is the perimeter sealing of every moving opening in the building envelope except exterior door thresholds — operable windows, attic-access panels, basement bulkheads, and the garage-to-house entry — installed with V-strip, foam tape, or rubber bulb matched to each opening, from $150 per opening and $450 for a typical 6-opening sweep. It is the fix for the double-hung window that whistles in a January wind, the bedroom that runs 5 degrees colder than the rest of the upstairs, the attic-access panel you can feel cold air dropping out of when you walk under it, the basement bulkhead that lets in dust from the side yard, the garage-to-house door that never sat right after the garage settled. Distinct from door-threshold weatherstripping, which lives under door repairs.
Service
What Does Whole-Home Weatherstripping Include?
Whole-home weatherstripping is the resilient strip — V-shaped metal, foam tape, rubber bulb, or silicone tube — installed in the gap between every moving opening and its frame to close the winter air leak, covering operable windows, attic-access panels, basement bulkheads, the garage-to-house door, and specialty openings like pet doors and mail slots, from $150 per opening up to $850 for a whole-home package. Every operable opening in a Seattle house has one or wants one, and a 6-to-12 opening sweep on a normal home lands $450 to $850. The work breaks into the openings on a typical Seattle home, each with its own material and prep.
Operable Windows — Double-Hung, Casement, Slider, Awning
Double-hung windows (the sash slides up and down in a track) get brass or aluminum V-strip in the side channels — it springs out against the sash when closed and compresses flat when the sash moves. The horizontal meeting rail where the upper and lower sash overlap gets a compression foam strip. Casement windows (crank-out) and awning windows get a continuous compression bulb seal in the frame channel. Sliders get a fin-seal pile strip on the moving edge.
Attic Access Panel Frame
The attic-access panel in most older homes is a piece of 1/2-inch plywood resting in an unsealed pine frame in the ceiling. The frame gets a continuous closed-cell foam strip on the lip the panel rests on — when the panel is replaced and latched, the foam compresses and the air path closes. This is the air-sealing portion of attic-hatch work; the rigid-foam insulation on the back of the panel itself is the attic hatch sealing service.
Basement Bulkhead and Utility-Access Hatches
Bilco-style sloped basement bulkheads and the cellar-access hatches in older Seattle homes get a heavy-duty rubber bulb seal around the perimeter where the doors meet the steel frame. The seal handles both the air leak and the rainwater path — failed bulkhead seals are a common source of basement moisture as much as cold air.
Garage-to-House Door Frame
The interior door from the garage into the house is required by code (IRC R302.5.1) to be solid-core or fire-rated, and a tight perimeter weatherstrip is critical because the garage is not part of the conditioned envelope and is often the dustiest, dirtiest, and (where vehicles run) most carbon-monoxide-prone space in the property. We install foam-and-vinyl compression weatherstripping on all three frame sides plus an automatic door sweep at the bottom that drops only when the door closes.
Specialty Openings — Pet Doors, Mail Slots, Window AC Sleeves
The pet door flap that no longer sits flush in winter, the mail slot in the front door that whistles, the through-wall AC sleeve that has not had a unit in it for 5 years. Each is a known cold-air path. Pet doors get replacement flap kits with magnetic strip on three sides. Mail slots get an interior storm-flap or a draft-stop kit. Empty AC sleeves get rigid-foam plugs and exterior caulk seal.
Material Selection Per Opening
The material choice matters more than the brand. V-strip springs back over 10,000 close cycles — the right answer for sash channels that move daily. Foam tape compresses once and stays compressed — fine for an attic hatch that opens twice a year, wrong for a bedroom window that opens every morning in summer. Rubber bulb seals handle large irregular gaps. We pick from the truck per opening, not one universal kit.
How Whole-Home Weatherstripping Works
Six steps from the room-by-room walk-through to the final compression check — the actual sequence we follow on every operable-opening weatherstrip sweep.
Room-by-Room Draft Walk-Through
Walk the house with a flashlight and the back of a hand on a cold or windy day to map every drafty opening — operable windows, attic access, basement bulkhead, garage-to-house door, specialty openings like pet doors and mail slots. Each leak gets sized and queued by material need.
Material Match Per Opening
Pick the right strip per opening from the truck — V-strip (brass or aluminum) for sash channels and sliding door perimeters that move daily, compression foam for meeting rails and static lip seals, rubber bulb for large irregular gaps like Bilco basement bulkheads. The wrong material at the right spot fails in a season.
Channel and Substrate Cleaning
Strip every old adhesive residue with denatured alcohol, wire-brush paint chips off sash channels, and dry-cloth the surfaces. Skipped prep is the single most common cause of a 90-day weatherstrip failure — new strip lifts because it never bonded to the substrate.
Operable Windows Stripped
V-strip pressed into double-hung side channels, compression foam applied at the meeting rail, fin-seal pile on slider edges, continuous bulb seal in casement and awning channels. Each sash worked open-and-closed three times after install to confirm no binding and clean compression.
Attic Hatch, Bulkhead, Garage-to-House Door
Foam tape on attic hatch frame lips, rubber bulb on basement bulkhead perimeters, three-sided foam-and-vinyl plus an automatic drop sweep on the garage-to-house door. The non-window openings get the same material discipline as the windows.
Flashlight and Dollar-Bill Compression Check
Run a flashlight along every sealed perimeter at night with someone inside watching for the beam, and try to pull a dollar bill out of every closed sash — no light, real resistance on the bill, no whistle on a windy day. Three quick post-install tests on every opening before the visit closes.
Whole-Home Weatherstripping Pricing
Final pricing depends on the opening count, the material per opening (V-strip vs foam vs rubber bulb), and whether sash adjustments or hardware are needed alongside the strip. Multi-opening visits are cheaper per opening than booking each separately. Request a free estimate for an accurate quote.
Tell us the rooms with active drafts and the rough window count — we will quote the sweep.
Why Choose a Professional for Whole-Home Weatherstripping?
Most window weatherstripping fails the same way — a previous owner stuffed cheap foam tape into the channel, the sash moved twice, and the tape pulled out and rolled up at the bottom. The right material for a moving sash is V-strip (brass on historic windows, aluminum on modern ones) that springs back to its shape over 10,000 close cycles. Foam tape belongs at the meeting rail where the sash sits in one position when closed. Pick the wrong material at either spot and the seal fails in one season. After a few hundred Seattle window-strip jobs across craftsman, Tudor, mid-century, and split-level homes, every common window type has a known material match. The truck carries all of it.
V-strip at every moving sash, foam at every static seam
The material match is the work. V-strip for sash channels and weatherstripped door perimeters where two surfaces slide. Compression foam at meeting rails and lip-rest hatches where the surfaces sit still when closed. Rubber bulb at large irregular gaps like bulkhead doors. The wrong material in the right spot fails in months — we pick from the truck per opening.
Channel cleaning before any new material
The previous strip's adhesive residue, paint chips, and decades of dust in the sash channel prevent the new material from seating flush. We clean every channel before installing — denatured alcohol on adhesive residue, fine wire brush on paint, dry cloth at the end. Skipped prep is the single most common cause of a 90-day weatherstrip failure.
Honest call on what is sealable vs what needs replacement
A 1920s wood double-hung window with sound sashes and a sound frame is weatherstrippable forever — the V-strip lasts decades and the sash channels do not change. A 1985 aluminum window with a broken sash spring and a warped frame is not — sealing it is patching around a window that needs to be replaced. We will tell you on the walk-through which windows benefit from weatherstripping and which need a window contractor.
Distinct from door-threshold weatherstripping
The compression strip around the perimeter of an exterior door (front door, back door, slider) lives under door repairs and adjustments because it is part of a door tune-up that addresses the hinges, the latch, the sweep, and the strike alignment together. List both on the booking call and we run the whole visit as one job — same trip charge.
Insured, background-checked, 30-day guarantee
Every Handis weatherstripping technician carries liability insurance and has cleared a background screening. If V-strip pulls out, foam tape rolls up, a compression seal fails to compress, or any strip detaches within 30 days because of our workmanship or substrate prep, we come back and redo it at no extra charge. Materials carry their manufacturer warranty (typically 5 to 10 years).
Estimate
Tell us the home age, the rooms with active drafts, the count of operable windows, and whether the attic hatch frame and garage-to-house door are in scope — we will send back a clear estimate.
Customer Reviews
Recent whole-home weatherstripping reviews from verified Seattle customers.
1928 craftsman, every original double-hung window whistled in a strong westerly. Tech installed brass V-strip on every sash channel (10 windows), compression foam at every meeting rail, and replaced the failed pile strip on the kitchen casement. House sounds different in a windstorm now — quiet, the way it should be. Two seasons later, no failures.
The bedroom over the garage was always cold and we figured it was the door from the garage into the house letting in air. Tech confirmed it on a flashlight test, did a 3-sided compression strip on the frame plus an automatic drop-sweep at the threshold. Bedroom now matches the rest of the upstairs.
Attic hatch in the hallway ceiling dropped cold air every time someone walked under it. Tech installed foam strip around the frame lip and added two cabinet latches to make the gasket compress. Air drop is gone. Two-hour visit, $200 between this and the panel insulation.
Whole-home weatherstripping sweep on our 1965 rambler before our first Seattle winter. Tech walked the house, found 11 windows that needed work, did them all in one long visit. Did not try to sell us on the windows that were sealing fine. Honest scoping; the bedrooms that were drafty are no longer drafty.
Bilco bulkhead in the basement had been leaking dust and a little rainwater every winter. Tech replaced the perimeter rubber bulb seal — 90 minutes including hand-cleaning all the rust off the steel frame first. No more dust, no more water.
Frequently Asked Questions
Common questions about whole-home weatherstripping in Seattle homes.