Heating & Air Conditioning in Denver and the Front Range
Furnaces, central air, heat pumps, ductless mini-splits and boilers — sized for Colorado altitude, installed to code, and backed by the paperwork that gets you every Xcel Energy rebate you qualify for.
Mini-Splits by Joseph installs and services heating and cooling systems for homes and businesses across Denver, the Front Range and Colorado’s mountain communities. Whether you need a new furnace before winter, central AC for a hot upstairs, or want to replace both with a single cold-climate heat pump, we help you compare options honestly and install the system that fits your home, your budget and Colorado’s climate.
Heating and cooling systems we install
Gas Furnaces & Air Handlers
High-efficiency gas furnace installation and replacement, plus air handlers paired with AC or heat pump outdoor units for complete ducted systems.
Furnaces & air handlers →Central Air Conditioning
New central AC, replacement condensers and coils, and split or packaged systems for homes and light commercial buildings.
Air conditioning →Cold-Climate Heat Pumps
One system for heating and cooling that keeps working well below 0°F — and qualifies for Xcel’s $1,500-per-ton cold-climate rebate.
Heat pump installation →Ductless Mini-Splits
Room-by-room comfort without ductwork: additions, basements, bonus rooms, ADUs and older homes. Fujitsu is our primary line.
Ductless mini-splits →Ducted Heat Pumps
Whole-home heat pumps that use your existing ductwork, often paired with a furnace as backup heat.
Ducted heat pumps →Boilers & Hydronic Heat
High-efficiency condensing boilers, combi boilers and air-to-water heat pumps for radiant floors and baseboard systems.
Boiler installation →High-Velocity Systems
SpacePak small-duct heating and cooling for historic homes and tight spaces where full-size ducts won’t fit.
High-velocity HVAC →Commercial Heating
Reznor unit heaters, rooftop units and make-up air for shops, warehouses and commercial spaces.
Commercial heating →Repairs, diagnostics and maintenance
Heating and cooling equipment works hard at altitude. We troubleshoot no-heat and no-cooling calls, fix electrical and refrigerant problems, and offer seasonal tune-ups that keep systems efficient and warranties valid.
Repairs & Diagnostics
Control boards, compressors, refrigerant leaks, sensors and wiring — on mini-splits, heat pumps, furnaces and AC.
HVAC repair →Maintenance & Tune-Ups
Cleaning, coil and filter service, and performance checks before heating and cooling season.
Maintenance plans →
Furnace, AC or heat pump: which is right for your home?
- Keep a gas furnace, add AC if your ductwork is in good shape and you mainly need summer cooling.
- Add a heat pump to your furnace (a dual-fuel system) to cut gas use while keeping backup heat for the coldest nights.
- Go all-electric with a cold-climate heat pump to replace both furnace and AC with one system, with the largest rebates.
- Choose ductless mini-splits for homes without ducts, rooms that are always too hot or too cold, and additions.
Colorado-specific design
At 5,280 feet and above, equipment loses capacity and combustion appliances need altitude-correct setup. We size systems with a room-by-room load calculation, place outdoor units above snow and drift lines, pull the required mechanical permits, and commission every system before we leave.
Areas we serve
- Denver
- Aurora
- Lakewood
- Arvada
- Westminster
- Thornton
- Littleton
- Centennial
- Englewood
- Highlands Ranch
- Parker
- Castle Rock
- Golden
- Wheat Ridge
- Edgewater
- Broomfield
- Boulder
- Longmont
- Fort Collins
- Evergreen
- Conifer
- Summit County
Heating & AC FAQ
Do you replace gas furnaces, or only heat pumps?
Both. We install and replace gas furnaces and central AC, and we install heat pumps and mini-splits. We’ll explain the trade-offs so you can choose.
Do heat pumps work in Denver winters?
Yes. Cold-climate heat pumps keep producing heat well below 0°F. For very cold or mountain locations we size for altitude and can pair the heat pump with backup heat.
How much does a new system cost?
It depends on the system type, size and your ductwork. Use our Denver cost guide or calculator for a range, then get an exact quote from a free estimate.
Do you work on commercial buildings?
Yes — rooftop units, unit heaters, VRF systems and more. See our commercial mechanical services.
Get a free heating & cooling estimate
Tell us about your home or building and we’ll recommend the right system — with rebates applied.