When a Front Range homeowner starts comparing window and door contractors, Conservation Construction comes up early because it has been operating out of Lakewood, Colorado since 1989 and covers most of the geography a Denver Metro resident would care about: Colorado Springs, Fort Collins, and the wider Front Range corridor. The service list is broader than the typical replacement-window shop. Double-hung, single-hung, picture, bay and bow, custom-sized units, energy-efficient glass, and designer black frames are the core. Door replacement and siding installation extend the catalogue, and Conservation Construction also installs motorized retractable screens and awnings, two add-ons that most regional competitors do not carry. Installed brands include ProVia, Anlin, James Hardie fiber-cement siding, Cedar, and SunPro, each backed by a manufacturer warranty independent of anything the contractor promises.

The volume numbers

Conservation Construction publishes cumulative figures: more than 313,860 windows installed and over 25,529 customers over 30-plus years of operation. These are oddly specific numbers, and specificity is harder to fake. Round totals invite the obvious follow-up; 313,860 does not read as a number someone chose because it sounds impressive. The order of magnitude is plausible for a regional contractor running at reasonable capacity since 1989. Exterior remodeling companies that accumulate serious complaint histories tend not to survive three decades in markets where homeowners compare notes before hiring anyone. Longevity does not guarantee quality, but it is not nothing.

The geographic footprint reinforces the scale claim. Denver Metro plus Colorado Springs plus Fort Collins is not a boutique territory. A company genuinely working across that range at the volume Conservation Construction claims would have built the referral infrastructure you would expect to see on review platforms, and the platform data below is consistent with that picture. A homeowner who uses Conservation Construction for windows can call the same contractor for siding or a door replacement later, which has real practical value if the first job went without problems.

The one honest qualification: the installation count comes from Conservation Construction itself. No independent source has confirmed 313,860 as the precise figure or documented any audit of it. That is not a reason to walk away from a contractor with this much platform evidence behind it, but the claim is self-reported and anyone for whom the specific scale matters should raise it directly.

Third-party review platforms

Birdeye carries 411 reviews at 4.9 stars. At that volume, a persistent pattern of poor workmanship would surface in the rating distribution regardless of any effort to manage perception; 411 reviews at 4.9 is not easily manufactured. Houzz sits at 4.7 out of 5, sourced from an audience that is actively mid-renovation, so the context is appropriate. Trustpilot lists 61 reviews with positive testimonials visible. Facebook shows 76 percent recommending Conservation Construction across 8 ratings; 8 ratings is too small a pool to mean much either way, so note it and move on. Conservation Construction is BBB-accredited with a Colorado profile on file, confirming a registered business address exists in the state. Nextdoor surfaces positive mentions from local residents, and for a contractor doing physical work inside homes in a specific neighbourhood, that resident-level word of mouth cuts closer than polished platform testimonials from strangers. A Glassdoor employer profile with employee reviews confirms a stable staff structure, not a brand name fronting a rotating roster of subcontractors. For exterior work where the crew returning to fix a problem needs to be the same crew that caused it, that distinction is not trivial.

A note for anyone cross-referencing sources: a separate Texas entity at conservationctx.com appears on Trustpilot and BBB under a similar name. It is a different business. Confirm that any reviews you are reading are tied to the Colorado operation, not the Texas one.

Contact and access

A phone number, a Lakewood street address on West Colfax, and office hours of Monday through Friday, 8 a.m. to 5 p.m. appear on the Conservation Construction site and match what appears on third-party profiles. A quote-request form is available for anyone who prefers not to call first. The published physical address means a prospective customer can visit the showroom in person. For exterior remodeling work where the contractor will be opening the wall of a house, that option matters in a way a listing with only a phone number does not. The contact information is consistent across sources, which is a basic check Conservation Construction passes without issue.

What this adds up to

Conservation Construction is a well-documented regional operator with genuine longevity, a multi-platform review presence pointing consistently in the same direction, brand partnerships with independent manufacturer warranties, and contact details that hold across sources. The gap between the self-reported installation volume and anything an outsider can independently confirm is the one element left unresolved. It is not disqualifying. But for a homeowner about to authorize exterior work on a house, pressing the contractor on that number in person is a fair and reasonable request, and how they respond to it will tell you more than any listing.

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