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Window Replacement in Denver, CO

Compare 6 local window replacement pros. Typical service: $536–$1285.

Top Window Replacement Companies in Denver

  1. 1.Renewal by Andersen Window Replacement

    4.8★ (7,088 reviews)

    4.8★ from 7088 reviews

    +17203038859Website

  2. 2.Gravina's Window Center of Littleton

    4.8★ (108 reviews)

    4.8★ from 108 reviews

    +13037943192Website

  3. 3.Kraftwork Design Windows & Siding

    4.8★ (78 reviews)

    4.8★ from 78 reviews

    +17208372113Website

  4. 4.Window Replacement Denver

    4.8★ (64 reviews)

    4.8★ from 64 reviews

    +17207012202Website

  5. 5.Discount Windows & Siding, INC

    4.8★ (41 reviews)

    4.8★ from 41 reviews

    +13032957283Website

  6. 6.R&R Windows & Doors

    4.5★ (16 reviews)

    4.5★ from 16 reviews

    +13032870887Website

Window Replacement Cost in Denver

Local ranges, adjusted for area wage and cost-of-living data.

ServiceTypical range in Denver
Replacement window, installed$536–$1,285/window
Wood or fiberglass window, installed$857–$1,714/window
Whole-house replacement (10-15 windows)$5,355–$16,065/job

Window Replacement prices in Denver run about 7% above the national average, based on what this trade earns in the metro area — so neighbouring cities in the same metro see similar rates.

Quotes on this page come from 6 companies serving Denver, rated 4.8★ on average across 7,395 customer reviews.

Denver Climate & Seasonal Timing

What Denver's weather means for scheduling window replacement.

Last spring frost
May 2
First fall frost
October 5
Annual precipitation
15.58"
Heating degree days
6,068
Cooling degree days
687
MonthLowHighPrecip
Jan17.4°44.5°0.47"
Feb19.6°46.1°0.47"
Mar26.4°53.6°1.25"
Apr34.1°60.9°1.74"
May43.8°70.5°2.3"
Jun52.8°81.2°1.69"
Jul59°88.2°2.05"
Aug57.4°85.7°2.06"
Sep47.5°77.2°1.06"
Oct35.7°64.9°1.08"
Nov24.9°52.3°0.82"
Dec16.7°43.3°0.59"

NOAA station data 0.73 miles from Denver.

Permits & Regulations in CO

  • Colorado has no statewide painting or general contractor license; requirements are set by each city and county
  • Remodeling that needs a building permit generally requires a locally licensed contractor
  • Work that disturbs paint in homes built before 1978 must be done by a Lead-Safe Certified firm under the EPA Renovation, Repair and Painting Rule

License required: No state painting or remodeling license; local licensing

Sources: www.denvergov.org, www.epa.gov

Window Replacement FAQs for Denver

How much does window replacement cost in Denver?

Replacement windows in Denver typically run $536-$1285 per window installed, depending on frame material and glass.

How many window replacement companies serve Denver?

We track 6 window replacement companies serving Denver.

Is window replacement in Denver more expensive than average?

Installation labor in Denver runs about +7.1% versus the national average.

Do I need a permit to replace windows in Denver, CO?

In CO, Colorado has no statewide painting or general contractor license; requirements are set by each city and county. Same-size replacements in Denver often need no permit, but enlarging an opening does, and pre-1978 homes fall under the EPA lead-safe rule.

Do energy-efficient windows pay off in Denver?

Denver sees about 6,068 heating degree days and 687 cooling degree days a year, which sets how much better glass saves on heating versus cooling.

What type of glass suits windows in Denver?

With summer highs near 88F and winter lows around 17F in Denver, the low-E coating and frame insulation matter more than the brand.

How many quotes should I get for window replacement in Denver?

Three is typical; with 6 window companies serving Denver, compare the window model and installation method, not just the per-window price.

How long does window replacement take in Denver?

A whole-house job in Denver is usually one to three days of installation, after a lead time of several weeks for custom-sized windows.