
Number 1: West Pro Roofing
on GoogleLongmont, CO
West Pro Roofing provides window replacement in Longmont, Colorado.
(303) 834-9236 164 Primrose Ct, Longmont, CO 80501
The 10 window replacement companies from Google's results for Denver, Colorado, ordered by Google rating weighted by review count. No firm pays to be listed or ranked.
Last updated
Licensing in Colorado. Colorado has no state license for general contractors or remodelers. Denver and most other cities license contractors locally.

on GoogleLongmont, CO
West Pro Roofing provides window replacement in Longmont, Colorado.
(303) 834-9236 164 Primrose Ct, Longmont, CO 80501

on GoogleAurora, CO
Window repair and glass replacement are the main services at United Windows Pro, a family-run company working across Denver and its surrounding suburbs. The crew fixes and reglazes existing windows in homes and businesses, aiming to save a window rather than replace the whole unit.
(720) 400-2929 4515 S Nepal Ct, Aurora, CO 80015

on GoogleLittleton, CO
Based in Littleton, Colorado, Paramount Siding and Windows works as both a window replacement company and a siding contractor.
(720) 734-9845 6637 S Broadway, Littleton, CO 80121

on GoogleAurora, CO
Operating from Aurora, Colorado, this company replaces and repairs home windows across the Denver area.
(303) 343-2185 1655 Jasper St Suite D, Aurora, CO 80011

on GoogleWestminster, CO
With offices in Phoenix, Tucson and Denver, True View Windows & Glass replaces windows and patio doors, including multi-slide doors and movable glass walls. Its glass shop also reglazes broken panes, repairs windows, cuts mirrors and tabletops, builds glass shower enclosures and handles emergency board-ups, with work for multi-family properties as well.
(720) 431-8783 3200 W 71st Ave #20, Westminster, CO 80030

on GoogleDenver
Denver Window Company replaces windows and doors across the Greater Denver metro, with energy-efficient options sized to each house. Beyond swapping out older units, the firm supplies and installs windows for new construction and renovation projects, working with homeowners as well as builders and remodelers.

on GoogleGolden, CO
Pinnacle Windows & Restoration installs replacement windows for Denver homeowners whose existing units are drafty, worn out or damaged by storms. Clients pick window styles and frame materials from several manufacturers to suit the property, with the goal of better comfort, energy performance and operation.
(303) 747-3698 616 Moss St, Golden, CO 80401

Denver
In Denver, Windows for Your Home handles window replacement, with project work that includes taking out original wood windows and fitting Infinity by Marvin fiberglass units. The company works on homes across the Denver area and points to Colorado's climate as a key factor in choosing windows.

Denver
Durable Doors & Windows installs windows and doors for Denver homes, covering replacement windows, entry doors, patio doors and barn doors. Its work also takes in window and door maintenance and energy-efficiency upgrades for local homeowners.

Denver
Colorado Window Company replaces windows for homeowners across the Denver metro, with customers stretching from Conifer to Boulder and Fort Collins. Its installations center on Pella window products, fitted in place of older units.
In Denver, a vinyl insert window typically costs $620 – $1,200 per window. Remodeling labor in Denver runs about 3% above the US median, which accounts for most of the difference from the same project elsewhere.
These are the firms from Google's results for "window replacement denver", with directories, chains and suppliers removed. They are ordered by Google rating weighted by review count, and the ratings shown are Google's. No firm pays to be listed or ranked. The list was last updated in October 2026.
Insert windows go into the existing frame, cost less and leave interior trim alone. Full-frame replacement removes everything to the rough opening, which is the right call if the frames are rotten or you want to inspect and re-flash the opening.