Cost to Window Caulking & Weatherstripping in Seattle, WA (2026)

If you’re budgeting a window caulking & weatherstripping in Seattle, most projects run $92-$733, 22% above the $250 national average. What moves that number most is usually one thing: Number of Windows and Doors. On its own it can swing the cost by $20 - $100 per opening, so that’s the decision to slow down on before you sweat the smaller stuff.

Easiest place to save: Buy a 10-pack of caulk tubes from a big-box store rather than individual tubes - bulk pricing drops the per-tube cost by 20-30%

In the West Coast (where Seattle sits): Bay Area and Seattle add 20-30%; LA runs 18-25% above average; mild winters reduce urgency but labor costs stay high.

$92-$733 in Seattle

22% above the national average · 1.22x cost multiplier

In Seattle, a window caulking & weatherstripping runs $92 to $733 on average - about 22% 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 ItemLowMidHigh
Cost per window$24$55$122
Materials$46$91$228
Labor$0$315$756
Permits$0$0$0
Total$46-39% vs. national avg$406+25% vs. national avg$984+16% 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.

MaterialCost/UnitBest For
Silicone Caulk$8-$20 per tubeExterior 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 tubeInterior 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 windowDouble-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 windowRarely-opened windows, storm windows, budget DIY projectsCheapest option, very easy DIY installation, widely available
Foam Backer Rod + Silicone$6-$15 per windowWindows 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 doorExterior doors, garage entry doors, basement doorsSeals the most common air leak point on exterior doors, available in automatic-lift versions

Other Projects in Seattle

Seattle Estimate

Typical Range

$92-$733

vs. National Average

22% above national

Cost Multiplier

1.22x

Cost Per window

$24-$122

This 1.22x estimate prices Seattle labor from BLS Occupational Employment and Wage Statistics (May 2025) and applies a lighter regional adjustment to materials and permits, which vary less by metro than labor does. Actual bids vary by contractor, project scope, and timing.

See national average costs →