Denver Insulation Rebates 2026: What's Available Now
Here is the honest picture for Denver insulation in 2026. For income-qualified households, the Colorado Weatherization Assistance Program (WAP) covers comprehensive weatherization at no cost, and Xcel Energy offers weatherization and air-sealing rebates to its customers. One caveat we will not bury: the federal HEAR insulation rebate (up to $1,600) is currently closed in Denver, because HEAR is regionally gated and the Front Range stopped accepting new applications on April 28, 2026. Denver homes built before 1990 lose up to 30% of their heat through poorly sealed attics, walls, and crawl spaces, so insulation remains one of the highest-ROI upgrades regardless.
Free weatherization through Colorado WAP
For income-qualified Denver households, the Colorado Weatherization Assistance Program offers comprehensive weatherization at zero cost to the homeowner. WAP is funded by the U.S. Department of Energy and administered locally, providing insulation, air sealing, heating-system tune-ups, and sometimes full furnace replacement to households at or below 200% of the federal poverty level. Unlike HEAR, WAP is not regionally gated, so it is available to qualifying Denver households now. There is typically a waitlist, so applying early is important.
Xcel Energy weatherization rebates
Xcel Energy runs its own weatherization and home-performance program for residential customers, with rebates on energy audits, air sealing, and insulation. A professional energy audit is often the first step -- it identifies exactly where your home is losing energy. Amounts depend on the specific measure and your service details, so the calculator surfaces your current Xcel figure rather than a number that could go stale here.
The federal HEAR insulation rebate (where it is open)
HEAR covers insulation and air sealing at up to $1,600 for income-eligible households as a point-of-sale discount. But it is regionally gated: the Front Range (Region 1), which includes Denver, stopped accepting new applications on April 28, 2026, and no reopening has been announced, while the mountain and Western Slope counties (Region 2) remain open. So we do not count the $1,600 HEAR insulation rebate in a Denver total today; the calculator checks your ZIP's status.
See what you qualify for
The calculator below takes your household size, income, and Denver ZIP code and shows which insulation and weatherization programs are open for you right now -- WAP, utility rebates, and HEAR where applicable -- using real 2026 program data.
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Frequently Asked Questions
What insulation rebates are available in Denver right now?
For income-qualified Denver households, the Colorado Weatherization Assistance Program (WAP) provides comprehensive weatherization at no cost, and Xcel Energy runs weatherization and air-sealing rebates for its customers. The federal HEAR insulation rebate (up to $1,600) is currently closed in Denver: Colorado runs HEAR by region, and the Front Range (Region 1) stopped accepting new applications on April 28, 2026, with no reopening announced. The calculator checks your ZIP so you only count what is open.
Is there free weatherization for low-income households in Colorado?
Yes. The Colorado Weatherization Assistance Program (WAP) provides free weatherization to income-qualified households -- generally those at or below 200% of the federal poverty level or 60% of State Median Income. Services typically include insulation, air sealing, heating system tune-ups, and sometimes furnace replacement. There is often a waitlist, so applying early matters. WAP is not regionally gated the way HEAR is.
Should I insulate before installing a heat pump?
In most cases, yes. A heat pump's efficiency depends heavily on how well your home holds heated or cooled air. A poorly insulated home makes a heat pump work harder, reducing comfort and efficiency. Most contractors recommend a blower-door test (a pressure test that finds air leaks) and air sealing before sizing and installing a heat pump.
How much can I save with better insulation?
According to the U.S. Department of Energy, proper insulation can reduce heating and cooling costs by 15% to 30% annually. In Denver's climate -- cold winters, hot summers -- the savings can be substantial. A typical Denver home spending $2,000 per year on heating and cooling might save $300-$600 annually after comprehensive air sealing and insulation upgrades.