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HVAC in Centennial

Licensed HVAC services for Centennial and Arapahoe County. Climate control engineered for comfort.

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Local Service

HVAC Services in Centennial, Colorado

Autotelic provides professional HVAC services throughout Centennial and the surrounding Arapahoe County area. Heating, ventilation, and air conditioning installation, replacement, and ductwork for residential and commercial buildings. Whether you're in Centennial (south Denver metro) or nearby communities, our team delivers quality workmanship backed by Colorado licensing and full insurance coverage.

Permits & Licensing

Permits in Centennial

Centennial building permits, inspections, and contractor license approvals are handled by the city's Building Division. Permits and contractor licenses must be applied for online through the city's Self-Service Portal, and we handle that process as part of every project. Authority: City of Centennial — Building Division.

Permit Thresholds

Centennial permit thresholds

Code reference
In Centennial, Colorado, building permits for residential remodel work are governed by the 2021 International Residential Code (IRC) Section R105 (adopted via Centennial Municipal Code Chapter 18 – Building Regulations, per Ordinance 2023-O-06 and related adoptions of the 2021 I-Codes).Section R105
Code reference
Typically exempt work (aligning with IRC R105.2 exemptions, with local application) includes:
Code reference
One-story detached accessory structures (e.g., sheds) ≤200 sq ft.
Code reference
Fences ≤7 ft high; retaining walls ≤4 ft high (measured from bottom of footing).
Code reference
Prefabricated swimming pools <24 inches deep.
Code reference
Window awnings projecting ≤54 inches.
Code reference
Decks ≤200 sq ft, ≤30 inches above grade, and not attached to the dwelling.
Use tax (not collapsed into a single rate)
City of Centennial Use Tax of 2.5% applied to the actual cost of materials, plus Arapahoe County Use Tax of 0.25% applied to the actual cost of materials.

Codes are amended regularly — verify current requirements with City of Centennial — Building Division.

Energy Code

Centennial energy code quick facts

Code reference
Centennial, Colorado, has adopted the 2018 IECC (with the 2021 I-Codes package) as its energy code, with no mention of Denver-specific overlays such as the Denver Green Code or Energize Denver.
Code reference
This is enforced by the City’s Building Division under Ordinance No. 2023-O-06 (adopting the referenced codes by reference, effective as part of the 2021/2023 code update package).Ordinance No. 2023-O-06
Code reference
Centennial is in Climate Zone 5B.
Code reference
The code applies to alterations, additions, and remodels per IECC Chapter 5 (existing buildings), with the prescriptive requirements of Chapter 4 (or equivalent U-factor/UA paths) generally applying to new or modified portions of the thermal envelope.
Code reference
Key prescriptive requirements relevant to remodels/additions (drawn from 2018 IECC Table R402.1.2 and related sections for CZ 5; these are the base code values with no local amendments identified that alter them):
Ceiling/attic insulation
Minimum R-49 (or equivalent U-factor ≤ 0.026).
Adopting reference
2018 IECC R402.1.2 (Table R402.1.2).
Wood-frame wall insulation
R-20 cavity or R-13 cavity + R-5 continuous insulation (or equivalent U-factor ≤ 0.060).
Ordinance No. 2023-O-06Source: centennialco.gov

Codes are amended regularly — verify current requirements with City of Centennial — Building Division.

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What HVAC work covers in the Denver metro

HVAC projects in the Denver metro include furnace and air-conditioner service, heat-pump and packaged-unit replacement, duct repairs, thermostat upgrades, and ventilation changes tied to remodels. Commercial buildings may also need rooftop units, zoning, and coordination with roofing or structural openings. A municipally licensed Denver general contractor coordinates the overall project and the licensed specialty trades required for mechanical and related electrical work. Scope should state whether the visit is repair, replacement, or a remodel that changes equipment location or duct routes.

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Front Range climate and equipment choices

Denver winters and high summer temperatures put real load on heating and cooling equipment. Altitude, wide daily temperature swings, and wildfire-season air quality can influence filter strategy and outdoor-unit placement. Equipment selection should match the building's size, insulation, duct condition, and fuel or electrical service available on site. Replacement projects benefit from a load-aware assessment rather than one-for-one equipment swaps that ignore duct leakage or undersized returns. Cost is project-specific and depends on equipment type, access, duct work, and electrical or gas changes.

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Remodel and commercial coordination

Kitchen, bathroom, and addition projects often change supply and return needs. Closing or opening rooms without adjusting airflow can create comfort problems. Commercial replacements commonly involve roof curbs, structural support, crane or lift access, and sequencing with roofing patches. A clear plan names equipment locations, thermostat zones, fresh-air requirements, and who will handle gas, electrical, and roof penetrations.

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Permits and who coordinates the work

Many furnace, condenser, and duct alterations require mechanical permits and inspections through the local city or county. Related electrical or gas work is handled by the specialty trades qualified for that scope. Cities and counties license general contractors. Colorado has no statewide general contractor license. Autotelic acts as a municipally licensed Denver general contractor and coordinates licensed specialty trades for HVAC packages. Permit responsibility and inspection sequencing should be stated in the project plan.

FAQ

Common questions

Repair or replace — how do you decide?

Repair is often practical for localized failures on equipment that is otherwise sound. Replacement is more common when the system is near end of life, parts are scarce, or comfort and efficiency goals cannot be met with the existing unit and ducts. An on-site assessment should drive that choice.

Who handles the HVAC permits and licensing?

A municipally licensed Denver general contractor coordinates the project and the licensed specialty trades required for the work. Local city or county building departments issue mechanical and related permits. Colorado has no statewide general contractor license.

Do heat pumps work in Denver winters?

Cold-climate heat pumps can be appropriate for many Denver-metro homes when sized and installed for local design temperatures, often with a planned backup heat strategy. Suitability depends on the building envelope, electrical service, and comfort expectations.

How is commercial HVAC different from residential work?

Commercial projects more often involve rooftop equipment, larger duct systems, tighter sequencing around occupancy, and coordination with roofing and structural openings. Access for lifts or cranes can dominate the schedule.

What information helps define an accurate HVAC scope?

Equipment type and age if known, symptoms or comfort complaints, fuel source, recent utility bills if available, remodel drawings, and photos of the furnace closet, attic, or rooftop unit. Note the city or county for permitting.

Service Area

Serving Centennial and Arapahoe County

We serve Centennial, CO and all surrounding Denver metro communities. Our team is based in Denver and operates throughout the Front Range, from Castle Rock to Longmont and everywhere in between. Contact us for a free estimate on your Centennial project.

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