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Claim This BusinessHorizon Services Plumbing, Heating & Air has operated in the Denver metro area since 1998, building a track record across 26+ years of continuous service. The company holds NATE certification for HVAC work and EPA certification, with a current rating of 4.3 stars drawn from 151 verified customer reviews. Their service footprint spans Denver proper and neighboring Englewood, where they handle both residential and commercial projects involving heating, cooling, plumbing, and even garage door systems. The business maintains 24-hour availability, meaning a technician can respond to emergency calls regardless of time or day.
What differentiates Horizon Services from neighboring contractors is their direct partnership with Trane as a Comfort Specialist, which grants access to equipment and rebate programs unavailable to independent shops. Their team emphasizes NATE-certified expertise for all HVAC repair, installation, and maintenance tasks, and they back their labor with double parts and labor warranties through the Peak Advantage Service Agreement. The company also provides financing options across economy, midrange, and premium packages, approving credit for homeowners weighing the cost of major equipment replacements.
Reviewers consistently mention specific technicians by name. Josh handled a recent AC tune-up for Lori Perry, explaining repairs and wearing shoe covers throughout the visit. Jonathan and Tom assisted Mary Anne Overbay when her boiler failed, working the same day to install a replacement while keeping her informed over eight hours. Joyce Joransen required a complete HVAC overhaul across two furnaces and condensers when moving into a new home, and the permit inspector separately praised the installation quality. These named technician encounters underscore the consistency customers describe across decade-long relationships with the company.
Of ten sampled reviewers, five explicitly describe repeat business spanning 4 to 18 years with Horizon Services. Emergency response appears in three reviews mentioning same-day arrival, while three others single out technician names (Josh, Jonathan, Mike, Jason) as reasons they trust the company. None of the visible reviews fall below four stars.
| Sunday | Open 24 hours |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| ThursdayToday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Air conditioner repair, tune-ups, diagnostics, and installation covering standard and ductless mini-split systems.
Furnace repair, boiler installation and repair, heat pump services, and heating tune-ups for residential and commercial properties.
Pipe repair, water heater and tankless water heater service, sump pumps, kitchen and bathroom plumbing, and water softeners.
IAQ assessments, humidifier installation, and ventilation improvements to address Denver's dry climate.
Track realignment, noise diagnosis, and operational repairs for residential garage doors.
Heating, cooling, and plumbing services tailored to commercial buildings and multi-unit properties.