Home energy audits in Denver

Amount A 25% bonus on all standard rebates, plus larger attic insulation and washer/dryer rebates, when three or more measures are installed within two years of enrolling

Who qualifies Customers with Xcel natural gas service, or Xcel electric service with electric heating

Amount For customers heating with Xcel electricity or gas: air sealing 30% of cost up to $400 (at least a 20% CFM50 reduction); wall insulation 30% up to $350 (empty cavity to R-13 or more); attic insulation 30% up to $500 (from below R-24 to R-60 or more, per the Oct. 1, 2026 summary). Xcel gas-heat customers get a bonus of 1.5 times the standard rebate with a 2026 invoice. Cooling-only Xcel electric customers get $15, $25 or $60. A $600 bonus applies when the insulation and air sealing and a qualifying heat pump are installed within two years of each other.

Who qualifies Existing homes up to four units. Work must be done by a BPI-certified participating contractor. Mobile homes, new construction and additions are excluded.

Amount For installs on or after January 1, 2026: air-source heat pump credit $1,000, with at least $333 discounted to the customer. Ground-, water- or combined-source credit $2,000, with at least $667 to the customer. Heat pump water heater credit $250, with at least $83 to the customer. The 2024-2025 amounts ($1,500, $3,000 and $500) have expired.

Who qualifies Anyone installing an eligible ENERGY STAR heat pump in Colorado through a registered contractor. The contractor claims the credit and must show a 'State of Colorado Heat Pump Discount' on the invoice; customers file nothing.

Amount Standard rebate, with the standard-plus-bonus figure in brackets. Ducted or mixed-ducted air-source heat pump: $300 per cooling ton [$600]. Ducted cold-climate heat pump: $750 per heating ton at 5°F [$1,500]. Ground-source: $1,100 per heating ton [$2,200]. Air-to-water: $950 per heating ton [$1,900]. Non-ducted heat pumps heating at least 50% of the home: the same per-ton amounts as ducted. Supplemental mini-splits (garage, room, or not reducing gas use): $500, with no bonus.

Who qualifies Colorado Xcel residential customers. A Trade Partner Network contractor is required except for supplemental mini-splits. Bonuses need a 2026-dated invoice and are not available to homes whose existing primary heat is electric (effective November 16, 2025). Xcel gas-only customers with electricity from another provider don't qualify. Rebates can't exceed project cost.

Amount 'Save $1500 when you upgrade to an energy-efficient heat pump.' The initial phase covers cold-climate air-source heat pumps in existing buildings.

Who qualifies Single-family, multifamily and commercial retrofits in DRCOG-participating municipalities and counties. An approved contractor must get preapproval before work starts. It can be combined with utility and local rebates.

Amount $750 standard, or $1,500 with the bonus (ENERGY STAR, 3.3 UEF)

Who qualifies Colorado Xcel customers. The bonus rules match the heat pump rebate: a 2026 invoice, and no bonus for homes with existing electric heat.

Amount Gas furnace at 95%+ AFUE: $225. Boiler at 95%+: $225. Boiler with side-arm water heater: $325. Each must replace non-condensing equipment.

Who qualifies Colorado Xcel residential natural gas customers

Amount Up to $75,000 for up to 20 years at a fixed rate, with no money down and no prepayment penalty. It is secured by a UCC-1 on the installed equipment, with no lien on the property.

Who qualifies Owners of existing Colorado single-family homes (primary, secondary or rental), plus townhomes and condos without shared heating or cooling systems

Amount A group-buying discount: 'Participants can save up to 10% compared to the average cost of installation'. It stacks with Xcel, Colorado Energy Office and Power Ahead Colorado rebates.

Who qualifies Denver homeowners. Sign up, complete an intake form and get a vetted installer's quote, with no obligation.