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Updated July 2026

Window & Door Installation in Denver, CO

From original single-pane windows in a Washington Park bungalow to mid-century aluminum-frame windows in a Park Hill ranch, H&W replaces aging Denver windows and doors with precisely installed, energy-efficient units — warrantied on the install, not just the product.

Denver's Older Housing Stock Is Losing Energy Through the Windows

Denver's close-in neighborhoods — Washington Park, Park Hill, Berkeley, Congress Park, Sunnyside — are full of homes built well before modern window standards existed. Many still carry original single-pane glass or early-generation double-pane units installed decades ago. In Colorado's temperature swings, that's not a minor inefficiency: it's a steady drain on heating and cooling costs, and it shows up as drafts, condensation, and rooms that never quite hold temperature.

Window replacement is consistently one of the highest-return upgrades available to Denver's older housing stock, both in energy savings and resale value. It's also one of the projects most likely to be done poorly — a good window installed loosely still drafts. We treat the installation itself as the differentiator: air-sealed, level, flashed, and warrantied.

What We Install in Denver

  • Window Replacement
  • Patio & Sliding Door Installation
  • Entry Door Replacement
  • Energy-Efficient Window Upgrades
  • Storm Door Installation
  • New Construction Installs

What Denver homeowners ask us

In most cases, yes. Single-pane and early double-pane windows common in Denver's pre-war bungalows lose a significant amount of conditioned air, and the return shows up in both lower utility bills and improved comfort. We'll assess your specific windows and give you an honest read on which units need replacing now versus which can wait.
Some Denver neighborhoods have design review requirements for street-facing changes, including window replacement. We'll help you understand whether your property falls under any review district and can guide product selection to match requirements where applicable — ask us at your consultation.
Yes. Xcel Energy offers rebates for qualifying energy-efficient window replacements, and eligibility depends on the specifications of the units installed. We'll walk you through what qualifies for your Denver home and help document the installation for the rebate application.

The window performs the way it's supposed to. We make sure of it.

Free consultation. No pressure. Warrantied installation.

We respond within one business day. No obligation — ever.