Cost to Window Caulking & Weatherstripping in Seattle, WA

$96–$768 in Seattle

28% above the national average · 1.28x cost multiplier

In Seattle, a window caulking & weatherstripping runs $96 to $768 on average — about 28% above what homeowners pay nationwide. The West Coast market's labor costs account for most of the gap, with material pricing and local permitting fees adding to the spread. Use the cost table below to compare budget, mid-range, and premium options side by side.

Cost Breakdown in Seattle

Line Item	Low	Mid	High
Cost per window	$26	$58	$128
Materials	$51	$102	$256
Labor	$0	$320	$768
Permits	$0	$0	$0
Total	$96+28% vs. national avg	$416+28% vs. national avg	$1,088+28% vs. national avg

Budget

DIY materials only — caulk and foam tape for 5-10 windows. No professional labor.

Mid-Range

Pro service for 10-15 windows: caulk all seams and install V-strip or foam weatherstripping on each.

Premium

Full-house treatment — all windows and doors, silicone caulk, door sweeps, and energy audit to identify remaining gaps.

Material Options

Material prices below are national averages; availability in Seattle may shift costs slightly.

Material	Cost/Unit	Pros	Cons	Best For
Silicone Caulk	$8-$20 per tube	25+ year lifespan, stays flexible in heat and cold, excellent adhesion to glass and metal, resists mold	Cannot be painted, requires mineral spirits for cleanup, harder to apply neatly without practice	Exterior window perimeters, glass-to-frame joints, metal window frames25+ year lifespan, stays flexible in heat and cold, excellent adhesion to glass and metal, resists mold
Latex Caulk (Paintable)	$3-$8 per tube	Paintable, easy water cleanup, low cost, available everywhere	Shrinks and cracks within 5-10 years, less flexible than silicone, degrades faster in direct sun	Interior window trim, areas that need to be painted to match, low-movement jointsPaintable, easy water cleanup, low cost, available everywhere
V-Strip (Tension Seal) Weatherstripping	$5-$12 per window	Long lifespan (10-15 years), fits invisibly in the window channel, handles gaps that vary with temperature	Harder to install than foam tape, requires cutting to length and pressing into channel	Double-hung and single-hung windows, sliding windows, door stop moldingLong lifespan (10-15 years), fits invisibly in the window channel, handles gaps that vary with temperature
Foam Weatherstripping Tape	$2-$5 per window	Cheapest option, very easy DIY installation, widely available	Compresses and loses effectiveness in 2-5 years, can interfere with window locking if too thick	Rarely-opened windows, storm windows, budget DIY projectsCheapest option, very easy DIY installation, widely available
Foam Backer Rod + Silicone	$6-$15 per window	Fills large gaps before caulking, prevents caulk from sinking into deep voids, extends caulk life	Adds a step to the process, requires sizing the backer rod to fit the gap	Windows with wide gaps between frame and siding, older homes with settled framingFills large gaps before caulking, prevents caulk from sinking into deep voids, extends caulk life
Door Sweeps	$15-$40 per door	Seals the most common air leak point on exterior doors, available in automatic-lift versions	Must be trimmed to exact door width, can drag on flooring if set too low	Exterior doors, garage entry doors, basement doorsSeals the most common air leak point on exterior doors, available in automatic-lift versions

Other Projects in Seattle

Full Kitchen Remodel

Full Bathroom Remodel

Composite Deck Building

Back to national average for Window Caulking & Weatherstripping

Seattle Estimate

Typical Range

$96–$768

vs. National Average

28% above national

Cost Multiplier

1.28x

Cost Per window

$26–$128

Estimates apply Seattle's 1.28x regional cost multiplier to national averages. Actual bids vary by contractor, project scope, and timing.

See national average costs →