Door Weatherstripping & Threshold Replacement
Door weatherstripping and threshold replacement is the door-perimeter seal job — kerf-in V-strip and foam at the jamb and head, a new door sweep at the bottom edge, an adjustable saddle threshold with riser screws, plus weather-resistant corner pads at the threshold-to-jamb joint — and starts at $150 for a single door. The dark line of daylight you can see under the front door at sunset, the V-strip at the doorjamb that has gone hard and no longer touches the door when it closes, the bronze threshold worn smooth to a mirror finish from fifteen years of shoes, the back-door sweep that drags on the slate but still does not seal. Door drafts are a 30-minute fix that most homeowners put off for a decade because the parts are cheap but the install is finicky. Handis replaces door-perimeter weatherstripping, swaps adjustable thresholds, and installs the right sweep for your door type in one visit. Whole-home weatherization (attic-hatch, dryer-vent, garage seal) lives on the separate [weatherization sub-hub](/services/handyman-and-home-repairs/weatherization-and-drafts).
Service
How Door Weatherstripping & Threshold Replacement Works
Six sequential steps from the dollar-bill draft test to the corner-pad seal — the order we follow on every door-perimeter visit so the V-strip, sweep, and threshold all seal as one system.
Diagnose the Draft Locations
Run a hand around the perimeter on a cold morning, close the door on a dollar bill at three points (top, side, bottom), and look at the V-strip for flattening or pulled-away sections. We identify whether the leak is at the perimeter, the bottom, the threshold, or the threshold-to-jamb corners.
Pull the Old Kerf-In Strip
The kerf-in V-strip or foam-pile strip pulls out of the routed slot at the jamb and head by hand — no screws, no nails. We pull the hardened original, vacuum the kerf clean, and measure the kerf depth (1/8, 3/16, and 1/4 inch are common).
Install Fresh Perimeter Strip
Match the strip thickness to the kerf depth — wrong depth either falls out (too thin) or holds the door open when it closes (too thick). Foam or rubber V-strip pressed into the kerf along the head first, then the latch jamb, then the hinge jamb. Standard 8-foot length covers one door.
Swap the Door Sweep
Pull the existing aluminum-framed sweep at the bottom edge, measure the door width, pick the right sweep type (face-mount for steel and wood, snap-on for some fiberglass), and install with adjustable mounting slots so the sweep just kisses the threshold without dragging.
Replace the Adjustable Threshold
Pull the worn aluminum saddle, check the subfloor for rot (small patches treated with epoxy hardwood patch and primer, larger rot routes to carpentry), install the new adjustable threshold, and turn the riser screws to set the vinyl insert height. Sweep clearance verified across the full door width.
Install Corner Pads at the Threshold-to-Jamb Joint
The triangular gap where the threshold meets the doorjamb base is the single most-overlooked draft on an exterior door. A $5 weather-resistant rubber or foam corner pad on each side closes the highest air-infiltration corner on the door. Standard on every threshold replacement.
Door Weatherstripping & Threshold Pricing
Final pricing depends on door type, whether the threshold needs replacement, and how many doors are bundled into a single visit. Brand-specific magnetic strip on steel doors may require parts ordering. Request a free estimate for an accurate quote.
Tell us the doors and the drafts — perimeter, bottom, threshold — we will quote the visit.
Why Handis for Door Weatherstripping
The single most-overlooked draft on an exterior door is the corner where the threshold meets the doorjamb — a small triangular gap, maybe a quarter inch on each side, that the perimeter strip and the sweep together never close. Cold air finds it within hours of the first frost. A $5 weather-resistant corner pad and two minutes of installation closes more measurable air infiltration than the entire perimeter strip replacement. We install corner pads on every threshold visit. The cheapest energy upgrade a Seattle homeowner can do is also the one almost no installer remembers to offer.
Estimate
Tell us which doors have drafts, where you can feel the air (under the door, along the side, at the threshold corner), and whether the threshold itself looks worn. We will quote the visit.
Customer Reviews
Door weatherstripping and threshold replacement reviews from real Handis customers.
Front door of our 1980s house had a draft I could feel from across the entryway every January. Tech replaced the kerf-in strip along all three sides, swapped the sweep on the door bottom, and installed corner pads at the threshold. He also pointed out that the threshold itself was worn through but did not push me to replace it that visit — said it could wait a year. Draft is gone. Honest call.
Back door threshold worn down to the wood subfloor. Tech pulled the old aluminum saddle, checked the subfloor (small rot patch he treated with hardwood patch and primer), installed a new adjustable threshold, and set the sweep clearance. Door closes flush against the new insert. Got two cold winters out of it before any maintenance needed.
Storm door plus main door at the side entry. Tech replaced the weatherstrip on both — storm door foam pile along the frame and main door kerf-in strip on the jamb. Both sweeps swapped, corner pads at the main door threshold. The combination cut the cold-floor feeling in the laundry room next to that door by half. Should have done both at once years ago.
Steel exterior door at the back, Therma-Tru. The magnetic strip had gone hard and the door no longer held the magnetic pull when closed. Tech identified the brand, had the right replacement strip on the truck, swapped it in 30 minutes. The door pulls itself shut against the magnet now — exactly how it worked when the house was new.
Two exterior doors, front and back, both with the same hardened perimeter strip from 1995. Tech worked both in one visit — pulled the old strip out of the kerfs, installed fresh foam pile at the right depth, swapped both sweeps, set the threshold sweep clearance on each. The whole entryway feels twenty degrees warmer at sunset. Two-door rate cheaper than booking each separately.
Frequently Asked Questions
Common questions about door weatherstripping and threshold replacement.