Heat pump installation in Longmont, Colorado

Installs in Longmont

Strata Heat Pumps installs heat pumps in Longmont, in every ZIP code listed on this page. The online estimate gives a price range and your rebates for a Longmont address in about two minutes.

Longmont homes and the local housing mix

Longmont has 42,435 homes across 29.038 square miles, according to Census figures. Its 41,066 occupied homes have a median build year of 1990 and 5.9 median rooms. Boulder County has 142,809 homes, a median build year of 1986, and 5.8 median rooms. Longmont housing is newer and slightly larger by this measure, but the home itself still determines equipment size.

The town has 60.5% detached houses and 27.9% homes in multi unit buildings. Boulder County has 57.9% detached houses and 30.7% in multi unit buildings. That leaves a substantial share of Longmont homes suited to individual ductless systems, especially condos and attached homes, while detached houses are strong candidates for ducted or dual fuel equipment.

Longmont has 62.6% owner occupancy, nearly matching Boulder County at 62.5%. Its 9.4% attached-house share exceeds the county's 9%, while its 11.4% share in buildings with 2 to 9 units trails the county's 11.8%. We check the home, ducts, and electrical panel before installation, because homes with the same build year can need different equipment.

Longmont compared with nearby towns

Longmont's median build year is 1990. Niwot's is 1981, while Mead's is 2003 and Firestone and Frederick both show 2007. Longmont has 10% of homes built before 1960. That is above Niwot's 5.9%, Mead's 3.1%, Firestone's 1.1%, and Frederick's 3%. Older Longmont homes deserve a close duct and load review before choosing a system.

Longmont has 76.3% utility gas heat. Niwot is close at 76.9%, but Mead reaches 90.8%, Firestone 82.3%, and Frederick 88.4%. Longmont's 21% electric heat share exceeds Niwot's 15.9%, Mead's 6.5%, Firestone's 15.2%, and Frederick's 10.8%. Gas homes can use a ducted heat pump or keep their furnace in a dual fuel setup. Electric homes without ducts fit ductless mini splits.

The local building patterns also differ. Longmont has 60.5% detached houses and 27.9% multi unit buildings. Niwot has 78.2% detached houses and 14.3% multi unit buildings. Mead has 90.8% detached houses and 2.6% multi unit buildings. Firestone has 73.5% detached houses and 13.7% multi unit buildings, while Frederick has 96.3% detached houses and 1.8% multi unit buildings. Longmont's larger multi unit share makes ductless zoning an important option.

Heat pump options for Longmont homes

A ducted heat pump uses existing ducts for heating and cooling. It fits many of Longmont's 60.5% detached houses, especially homes with usable ductwork. Longmont has 29.7% of homes built from 1980 to 1999, the town's largest age group. The example is a 2,000 square foot, 2 story gas-furnace home from that period. We measure the home and inspect its ducts before selecting a ducted system.

A dual fuel system pairs a heat pump with the existing gas furnace. The heat pump handles heating and cooling, and the furnace remains for the coldest hours. This is a direct fit to the town's 76.3% utility gas heating share. It also suits a home where ducts are present but full heat pump capacity at the design condition is not the homeowner's preferred approach.

Ductless mini splits use indoor units instead of central ducts. They suit homes without ducts, additions, and condos. Longmont has 16.5% of homes in buildings with 10 or more units, plus 11.4% in buildings with 2 to 9 units. For the 1,500 square foot ductless example, our estimate tool uses 3 indoor units. It also uses 500 sq ft of floor area per indoor unit, before a custom quote is needed beyond 5 units.

Sizing heat pumps for Longmont conditions

Air-source heat pumps lose output at altitude and in deep cold, so sizing starts with the design condition. Our estimate tool sizes Longmont at 1°F outdoors and 70°F indoors. It uses 5,300 ft and accounts for 18% lost heat output at that elevation. At the design temperature, the estimate uses a coefficient of performance of 2. A load calculation selects the system, not a townwide average.

The example 2,000 square foot, 2 story gas home built from 1980 to 1999 has a design heat load of 2.8 tons. Its estimate calls for a 30 A breaker. Longmont's 29.7% share of homes from this build period makes that example relevant, but it does not set the size for every house. Duct condition, electrical capacity, insulation, windows, and the measured home affect the final selection.

Age can change the load substantially. A 2,000 square foot, 2 story gas home built before 1960 has a design load of 3.4 tons. A home built from 1960 to 1979 uses 3.2 tons in the same example. The 2000 to 2009 example uses 2.4 tons, and the 2010 or later example uses 2.0 tons. Longmont has 10% of homes built before 1960 and 15.5% built in 2010 or later, so one size does not fit the town.

Longmont heat pump rebates and example prices

Our estimate tool lists rebates and prices for the example home. For a gas heated home and a 3 ton ducted heat pump, total rebates are $9,000. The total includes the Xcel Energy rebate ($4,500), the State of Colorado Heat Pump Discount ($1,000), the Power Ahead Colorado rebate ($1,500) and the Efficiency Works rebate ($2,000). The State of Colorado Heat Pump Discount applies to every Colorado home and comes off the invoice. We file every rebate for the homeowner.

A gas heated, 3 ton dual fuel system has total rebates of $9,000. Its programs are the Xcel Energy rebate ($4,500), the State of Colorado Heat Pump Discount ($1,000), the Power Ahead Colorado rebate ($1,500) and the Efficiency Works rebate ($2,000). The Power Ahead Colorado rebate applies in Boulder County on all 3 system types. For Longmont Power & Communications customers, Efficiency Works offers $2,000 on a ducted heat pump or a dual fuel system.

For a home replacing electric heat with a 3 ton ductless mini split, total rebates are $5,500. The programs are the State of Colorado Heat Pump Discount ($1,000), the Power Ahead Colorado rebate ($1,500) and the Efficiency Works rebate ($3,000). A gas home using a 3 ton ductless mini split has $8,500 available, with the Xcel Energy rebate ($4,500), the State of Colorado Heat Pump Discount ($1,000), the Power Ahead Colorado rebate ($1,500) and the Efficiency Works rebate ($1,500). Xcel Energy's rebate is for Xcel Energy customers whose homes now use a gas furnace, gas boiler, or propane, on any of the 3 system types. The federal 25C credit ended for systems installed after 2025-12-31.

Example prices and Longmont ZIP code differences

For the 2,000 square foot, 2 story gas example from 1980 to 1999, a ducted heat pump costs $15,100 to $27,900 before rebates and $6,400 to $19,200 after rebates. A dual fuel system costs $12,100 to $22,500 before rebates and $3,400 to $13,800 after rebates. The ductless 1,500 square foot example costs $11,800 to $19,200 before rebates and $7,300 to $14,700 after rebates. Equipment choice follows ducts, fuel, and the measured load.

ZIP code 80501 has 19,173 homes and a median build year of 1977. It has 20.3% built before 1960, 75.3% gas heat, and 30.1% multi unit buildings. Its older housing share is above Longmont's 10%, and its multi unit share is above the town's 27.9%. Ductless equipment and careful duct checks deserve special attention in this ZIP code.

ZIP code 80503 has 15,508 homes, a 1993 median build year, 73.4% gas heat, and 67.7% detached houses. ZIP code 80504 has 23,359 homes, a 2003 median build year, 82.3% gas heat, and 75.2% detached houses. It also has 23.9% built in 2010 or later, versus 14.3% in 80503 and 11.4% in 80501. Newer, more detached housing points toward ducted and dual fuel evaluations, but we size each home at 1°F. Most installations take one day. Jobs with several ductless units can take 2 or 3 days.

Longmont in numbers

Systems and rebates in Boulder County

• Ducted heat pump in Boulder CountyPrices by home age and the Boulder rebates for this system.
• Dual-fuel heat pump in Boulder CountyPrices by home age and the Boulder rebates for this system.
• Ductless mini-split in Boulder CountyPrices by home age and the Boulder rebates for this system.
• Heat pump rebates in Boulder County$7,000 on a 3-ton gas home, program by program.
• Pool heat pumps in Boulder CountyPool and spa heat pumps: local code rules, running cost and the swim season.

Other towns we install in

• Niwot6 miles away. 1,577 homes, median year built 1981.
• Mead7 miles away. 1,867 homes, median year built 2003.
• Firestone8 miles away. 6,094 homes, median year built 2007.
• Frederick8 miles away. 5,584 homes, median year built 2007.
• Boulder CountyEvery ZIP code in the county.

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