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LOUISVILLE SERVICES

HVAC in Louisville

Licensed HVAC services for Louisville and Boulder County. Climate control engineered for comfort.

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Local Service

HVAC Services in Louisville, Colorado

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

Permit Thresholds

Louisville permit thresholds

Code/municipal code sections
Louisville Municipal Code Chapter 15 (Buildings and Construction), which incorporates the 2024 ICC codes (IBC, IRC, IECC, IEBC, etc., effective December 6, 2025) with local amendments via Ordinance 2025-1907 (No. 1907-2025).Ordinance 2025-1907
Building permit fee follows a progressive table (e.g., $0–$500
$28; higher brackets up to $1M+ with per-$1,000 increments; exact amounts per the published schedule).
Plan review (in-house)
65% of the building fee.
Boulder County Use Tax
1.185% of 50% of Total Valuation.
City of Louisville Use Tax
3.775% of 50% of Total Valuation.
Code reference
Impact fees may apply for additions or remodels increasing finished floor area over 500 sq ft (per category tables; first 500 sq ft often exempt).
Ordinance 2025-1907Source: louisvilleco.gov

Codes are amended regularly — verify current requirements with **The City of Louisville, Colorado’s Building Safety Division (part of the city government) issues residential building permits.

Energy Code

Louisville energy code quick facts

Code reference
2024 International Energy Conservation Code (IECC), effective December 6, 2025 (adopted via the City of Louisville’s 2024 ICC Code Adoption ordinance), along with the Colorado Model Electric Ready and Solar Ready Code (also effective 12/6/25).
Code reference
Louisville is in Climate Zone 5B.
Code reference
The 2024 IECC (with the model ready codes) applies to new construction and, via Chapter 5 [RE], to additions, alterations, and remodels involving the building thermal envelope.
Code reference
Key prescriptive requirements relevant to remodels/additions (drawn from 2024 IECC Table R402.1.2 and related sections for CZ 5 / 5B; additions must meet these for new envelope areas or the whole-building UA alternative):
Ceiling/attic insulation
Maximum assembly U-factor 0.026 (2024 IECC Table R402.1.2).
Wood-frame wall insulation
Maximum assembly U-factor 0.045 (or equivalent prescriptive R-value combinations such as R-20 + R-5ci or R-13 + R-10ci; note R408 tradeoffs may allow reduced wall performance with additional measures) (2024 IECC Table R402.1.2 and R408).
Vertical fenestration (windows/doors)
Maximum U-factor 0.28 (2024 IECC Table R402.1.2).
Skylights
Maximum U-factor 0.50 (2024 IECC Table R402.1.2).

Codes are amended regularly — verify current requirements with **The City of Louisville, Colorado’s Building Safety Division (part of the city government) issues residential building permits.

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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 Louisville and Boulder County

We serve Louisville, 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 Louisville project.

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