Window Replacement cost in Renton, WA
Renton, WA · updated August 2026
$18,700
Typical local cost
$9,200 – $41,800
Typical range
- per window installed
- $800 – $2,350
- Permit
- Yes
- Typical timeline
- 1-3 days of installation
Installed, local pricing
$140 – $635 in fees
1-3 days of installation, 3-8 weeks including product lead time and permitting
Renton runs +23% against the U.S. average · data confidence High · modeled estimate, not a quote
The modeled midpoint for Renton is $18,700. The local adjustment for this trade is x1.230 — driven mainly by King County labor rates and 85% exposure to local code requirements.
Estimate your Renton job
Priced with this market's cost index, so the calculator, the size table and the ranges on this page all agree.
Estimated total cost
$9,503 – $13,499
Installed, all windows
- Cost per window
- $774 – $1,100
- Windows priced
- 12
- Permit
- $246
Priced for Renton (local adjustment x1.230).
Estimates only. Local pricing, site conditions and code requirements change the real number.
Cost by project size
Generated from the same unit pricing the calculator uses.
| Project size | Estimated range |
|---|---|
| 7 window installed | $5,600 – $16,500 |
| 10 window installed | $8,000 – $23,500 |
| 12 window installed | $9,600 – $28,200 |
| 15 window installed | $12,000 – $35,300 |
| 20 window installed | $16,000 – $47,000 |
Based on Renton pricing of $800–$2,350 per window installed.
Cost by window count and install type
Windows are priced per opening. Frame material and whether the crew does a retrofit (insert) or full-frame install drive the spread. Every row is priced against the Renton median.
| Scope | What it includes | Typical installed cost |
|---|---|---|
| 5 windows — retrofit | Insert into sound existing frames, vinyl | $6,500 – $9,400 |
| 10 windows — retrofit | Typical partial-home replacement | $13,100 – $17,800 |
| 15 windows — mixed | Most of a single-family home | $18,700 – $25,200 |
| 20 windows — full-frame | Whole-home, frames and trim replaced | $25,200 – $34,600 |
| 10 windows — impact / structural | Impact-rated or egress-corrected openings | $21,500 – $29,900 |
- • Retrofit inserts keep the existing frame and cost less; full-frame replacement is required once the frame or sill is rotted or the opening is being resized.
- • Rough-opening changes and egress corrections turn a window job into a permitted structural job.
- • Frame material sets the floor: vinyl is the value option, fiberglass and clad-wood carry a premium, aluminum is mostly a warm-climate product.
- • In wind-borne debris regions the glazing package, not the frame, is the biggest single line item.
Basis: Each scope is priced as a multiple of the modeled Renton median for window replacement, so the scenarios, the size table and the calculator always agree. · Hometriva methodology
Cost by material
Installed cost in this market, with expected service life.
| Material | Installed range | Lifespan | Maintenance |
|---|---|---|---|
| Vinyl Windows | $12,700 – $19,600 | 20–30 yrs | Very low |
| Aluminum Impact Windows | $21,500 – $35,500 | 30–40 yrs | Low |
| Fiberglass Windows | $20,600 – $31,800 | 30–50 yrs | Low |
Where the money goes
- Labor
- $7,500
- 39% of median
- Materials
- $11,200
- 59% of median
- Permit & fees
- $390
- 2% of median
Renton project costs+23% vs U.S. average
Based on King County labor rates, local material logistics and permit-fee posture for this trade.
What the project looks like start to finish
Typical sequence for this scope. Timing varies with contractor backlog and plan-review queues.
01
Planning & quotes
Scope, material choice, contractor selection
02
Permit application
Filed with City of Renton building department
03
Materials & staging
Order lead time on non-stock materials
04
Installation
1-3 days of installation, 3-8 weeks including product lead time and permitting
05
Inspection
Window buck / installation inspection, Final building inspection
06
Closeout
Final sign-off, warranty and documentation
Renton labor intelligence
What the trade charges here, and how much of your price it is.
Loaded hourly rate
$72–$94
Exterior crews in King County · +21% vs U.S. ($68/hr)
Typical crew
3 × 4 days
On-site time for a typical windows job here.
Labor in the price
$7,500
40% of the median — the rest is material, disposal and permit.
Because labor is 40% of this job, Renton wage levels move the price far more than material prices do. A quote well under this labor figure usually means a smaller crew, a longer schedule, or unlicensed help.
Basis: Hometriva labor model: national exterior crew rates adjusted by the King County labor factor (x1.208). · BLS Occupational Employment and Wage Statistics, Hometriva methodology
Why Renton differs from the national average
The local delta, broken into dollars by driver.
Trade labor rates+$1,275
King County crews price 21% above the national average, and labor is 40% of this job.
Code and inspection load+$1,100
Window Replacement carries 85% exposure to local code requirements, and this jurisdiction's review load indexes at x1.09.
Material and delivery+$950
Materials are nationally traded, so they move less — but delivery into this market runs 10% over baseline.
Permit fees+$50
Fees are paid to the jurisdiction, not the contractor, and are budgeted separately from the contract price.
Basis: Decomposition of the modeled Renton median against the U.S. median for this scope. · City of Renton building department, Hometriva methodology
Renton vs Washington vs the U.S.
Change the inputs, see your number
The same local model, run against your job instead of the average one.
Simulated window replacement in Renton
$19,090
Likely range $9,590 – $42,190
Simulated from the same local model as the numbers above — it changes the inputs, not the pricing method.
What makes the number move
- Number and size of openings
- Impact-rated versus standard glass
- Frame material: vinyl, aluminum or fiberglass
- Design pressure required for your wind zone
- Stucco, block or frame wall repair around the opening
Who issues each permit
Tracked per discipline — the building permit issuer is not always the body that reviews electrical, plumbing, zoning or fire.
| Discipline | Issuing authority |
|---|---|
| building | City of Renton building departmentModeled estimate |
| electrical | City of Renton building departmentModeled estimate |
| mechanical | City of Renton building departmentModeled estimate |
| plumbing | City of Renton building departmentModeled estimate |
| zoning | City of Renton building departmentModeled estimate |
| fire | City of Renton building departmentModeled estimate |
Permit requirement in Renton
Yes — a permit is required for window replacement in Renton, WA. The work must be inspected before it can be closed out, and a licensed contractor generally has to pull the permit.
- Permitting authority
- City of Renton building departmentModeled estimate
- Permit fee
- Estimated allowance $140–$635Modeled from comparable fee schedules — not an official quoted fee.
Inspections
- Window buck / installation inspection
- Final building inspection
Local conditions that change this job
Only the exposures that materially affect window replacement.
Design wind speed exposure
High70/100
Named-storm exposure
High70/100
Cooling load / heat exposure
Severe82/100
Solar irradiance
Severe82/100
Renton sits in King County, Washington. Persistent rainfall and moisture management dominate exterior detailing, while seismic provisions apply to structural and foundation work. Work outside city limits is permitted by the county building department rather than the city.
Owner-occupied homes
0%
Owner-occupied share of the housing stock, which drives how much of this work is homeowner-funded versus landlord-funded.
Households in market
42,714
Approximate household count in Renton, used to size the contractor pool for this trade.
Permit activity index
x1.15
Relative permit volume and fee load versus the national baseline.
Nearby market comparison
+ Had window replacement done in Renton? Add what you paid or were quoted
Reports are reviewed before they count, and nothing is published until at least 5 reports exist for a market. No name, email or address is collected.
How Hometriva estimates Renton windows costs
Hometriva does not publish invented city prices. The Renton estimate for window replacement is produced by this chain, and every input is stored separately:
- National baseline$15,200
Typical U.S. cost for window replacement on a single-family home.
- Local labor factorx1.208
Renton-area trade labor rates, weighted at 40% of this job.
- Material factorx1.105
Material and delivery pricing into King County, weighted at 60%.
- Regulatory factorx1.086
Local code, product-approval and inspection load, applied at 85% for this project type.
- Applied multiplierx1.230
Blended Renton adjustment specific to window replacement.
- Permit component$140 – $635
Budgeted separately from the contract price because it is paid to the jurisdiction.
Because labor, material and regulatory factors are weighted per project, window replacement in Renton carries a different local adjustment than other trades in the same market.
Reviewed by
Hometriva Cost Data Desk
Maintains the unit-cost baselines, local adjustment factors and material pricing. Reviewed for window replacement pricing in Renton, WA.
- • National unit-cost baselines against current trade pricing
- • Local labor and materials factors for the market
- • Material installed-cost ranges and service life
Last reviewed August 2026 · Editorial standards · Report an error
Frequently asked questions
How much does window replacement cost per window?
Most U.S. homeowners pay about $650 to $1,900 per window installed, depending on size, frame material and glass. A typical whole-house project of 10 to 20 windows lands around $7,500 to $34,000.
Is it cheaper to replace all windows at once?
Usually, yes. Contractors spread setup, travel and crew time across more openings, and manufacturers often discount larger orders. Doing it in phases works, but expect a higher per-window price.
Vinyl vs. fiberglass windows: which is better?
Vinyl is the most common and lowest-cost frame. Fiberglass costs more but expands less with temperature changes, holds paint and suits dark colors and large openings. Both outlast older aluminum frames in most climates.
Do replacement windows need a permit?
Many U.S. jurisdictions require a permit when the opening size, egress or structure changes, and some require one for any replacement. In high-wind coastal areas, product approvals and design-pressure ratings are part of the review.
Sources
Sources & verification
Model vintage August 2026. The links above are the issuing agencies' own pages — we publish them so you can confirm the current rule yourself, not as evidence that each fact on this page was re-checked with them today. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing, not quotes. Permit rules change; confirm with the building department before starting work.