Windows Cost in Thornton, CO in 2026
Most Windows projects in Thornton, CO cost between $4,600 and $18,500. The typical price is $9,000.
Labour and materials in Thornton run about 5% above the national average. These figures are adjusted for that, so they are not the national average you will find elsewhere.
What drives the price
- Vinyl, fibreglass or wood-clad frames
- Double versus triple glazing and low-E coatings
- Full-frame replacement versus insert into the existing frame
- Custom sizes, bays, bows and arched tops
Usually included
- Windows, frames and hardware
- Removal and disposal of the old units
- Installation, insulation and interior trim
- Exterior caulking and capping
Usually extra
- Rotten sill or framing repair found on removal
- Interior painting
- Permits where required
Unit prices in Thornton, CO
| Quality tier | Cost each |
|---|---|
| Budget | $465 |
| Mid-range | $875 |
| High-end | $1,850 |
Window replacement companies in Thornton, CO
Businesses listed on Google near Thornton, CO. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Ameritech Windows
4.7(913 reviews)
1748 E 66th Ave, Denver, CO 80229
True View Windows & Glass
4.8(557 reviews)
3200 W 71st Ave #20, Westminster, CO 80030
K&G Window Pros
4.9(463 reviews)
203 Telluride St Ste 850, Brighton, CO 80601
Performance Windows Denver
4.7(443 reviews)
590 Burbank St, Broomfield, CO 80020
New Windows for America
4.8(195 reviews)
33 N Main St, Brighton, CO 80601
Ace Window Replacement LLC
4.9(77 reviews)
5274 E 119th Way, Thornton, CO 80233