Delta T Services
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About Delta T Services
Delta T Services is a family-owned HVAC contractor based in Aurora, Colorado, operating under the DBA Delta T Heating and Air. With a perfect 5-star rating across 28 verified reviews, the team has built a reputation over many years as a straightforward shop that tells customers exactly what the equipment needs , and what it does not. Owned and operated by Jason Sr., Jason Jr., and Justin, the company welcomes both longtime homeowners and first-time buyers navigating a unfamiliar repair estimate. Service extends across the greater Aurora metro area and neighboring Denver communities, where climate swings from summer peaks into subfreezing winter lows keep heating and cooling systems under year-round demand.
Unlike contractors who lead with promotional pricing, Delta T begins every service call with diagnostic testing , a practice two separate reviewers specifically credited when the company disproved another contractor's replacement recommendation without charging a fee. The team carries expertise across residential furnace replacement, air handler installation, and indoor air quality solutions including Aprilaire filtration and humidification systems. When a repair or replacement estimate is accepted, the crew coordinates material sourcing and scheduling to complete most installations within a few business days, minimizing the window a home spends without working climate control.
Reviewers repeatedly highlighted individual technicians by name. After a national HVAC company diagnosed a cracked heat exchanger and quoted a new furnace, Jason used a scope camera and walked the homeowner through the inspection in real time, concluding the system was operational and declining to charge for the visit. For a bathroom remodel project, Justin and Jason returned to repair work damaged by a separate subcontractor, cleaning up the other crew's errors and restoring proper installation without additional billing. One reviewer described the experience of replacing a furnace as inherently frustrating, and credited the crew with transforming it into a decision she felt confident about.
What Customers Say
Four of five published reviewers called out a second-opinion scenario where another contractor had recommended an expensive replacement, and Delta T's diagnostic findings ruled that work unnecessary. Three reviewers named Jason or Justin personally and described follow-up actions , returning to fix unrelated damage, repositioning a furnace, or cleaning up another contractor's errors , that went beyond the scope of the original job. No negative reviews appear in the dataset, and all 5-star ratings cite honesty and transparency as the distinguishing trait.
Working Hours
| Sunday | 9 AM–5 PM |
| Monday | 6 AM–6 PM |
| Tuesday | 6 AM–6 PM |
| Wednesday | 6 AM–6 PM |
| ThursdayToday | 6 AM–6 PM |
| Friday | 6 AM–6 PM |
| Saturday | 8 AM–5 PM |
Services
Furnace Installation & Replacement
Complete furnace removal and new unit installation, including repositioning connections to improve on the original builder layout.
HVAC Diagnostic Inspection
Camera-scope and combustion analysis to determine whether repair or replacement is genuinely needed, avoiding unnecessary cost.
Indoor Air Quality Systems
Installation of Aprilaire media filtration and humidification units plus Global Plasma Solutions air purification equipment.
Bathroom & Kitchen Ventilation
Exhaust fan installation for remodels and replacements, including repair work when another subcontractor's activity damages existing ductwork.
Heat Pump Service
Seasonal heat pump maintenance and repair to maintain efficiency through Aurora's variable summer-winter temperature swings.