Summit Climate Solutions · Denver, CO
Trusted HVAC Installation in Denver, CO
A new HVAC system is a 15–20 year investment — Summit Climate Solutions protects it with licensed installation, written warranties, permit pulls, and manufacturer registration handled for you
Permits, commissioning documentation, warranty registration, and a 1-year labor warranty in writing. Not all HVAC contractors do all of this — Summit does.
Social Proof
Why Customers Trust Us
- licensed insured
- 20+ years
- 1-year parts & labor warranty
- NATE-Certified Technicians
- 2-hour emergency response
“Furnace quit on a -5°F night in Littleton. Summit's emergency tech arrived in under 2 hours, diagnosed a failed igniter, and had heat running again before midnight. Incredible response.”
“Installed a dual-fuel heat pump system in our Aurora home. Works as AC in summer and efficient heat pump in fall/spring, with the gas furnace kicking in only on the coldest days. Bills dropped significantly.”
“The altitude adjustment thing is real — our old company never tuned our furnace for Denver's elevation. Summit re-tuned it and the short-cycling stopped immediately.”
Everything Included
What You Get
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Manual J Load Calculation
We size every system scientifically using ACCA Manual J methodology — never by rule-of-thumb guessing — ensuring you get the right capacity for your home's exact heat gain and loss profile.
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Factory-Backed Equipment Warranties
We install Carrier, Lennox, and Trane systems with 10-year parts warranties registered in your name — and our workmanship warranty adds 2 years on top of that for labor.
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Same-Day Completion Commitment
Our crews are sized to complete most whole-home installations in a single day. You will not go more than one night without climate control during your installation.
Our Guarantees
- 2-year labor warranty plus full manufacturer parts warranty up to 10 years, registered in your name at installation.
- licensed insured
- 20+ years
- 1-year parts & labor warranty
- NATE-Certified Technicians
- 2-hour emergency response
Simple Process
How It Works
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We perform a full Manual J load calculation for your home — measuring insulation, window areas, ceiling height, and local climate data — so the new system is sized correctly, not just estimated by square footage.
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Our installation crews are NATE-certified and install only top-tier equipment from Carrier, Lennox, and Trane with factory-trained expertise, ensuring your warranty remains fully valid.
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After installation we commission the system with airflow balancing and refrigerant charge verification, then walk you through the controls and schedule your first maintenance visit — included in the installation price.
Our Approach
HVAC Installation in Denver
Denver's extreme temperature swings — from 90°F summers to -10°F winter nights — demand HVAC systems that perform reliably year-round. Altitude also affects system performance, requiring technicians who understand the adjustments needed for proper combustion and airflow at 5,280 feet.
HVAC system design for Denver homes must solve for two distinctly different climate challenges that few other markets impose simultaneously: genuine summer heat requiring real cooling capacity, and genuine winter cold requiring high-performance heating down to -10°F or below. The altitude overlay — 5,280 feet — adds a third dimension that affects both cooling and heating system performance and must be reflected in every aspect of equipment selection and installation. For the cooling side, Denver's elevation requires equipment de-rating acknowledgment in the Manual J load calculation and equipment selection. A 3-ton condenser rated at sea level produces slightly less than 3 tons of cooling capacity at Denver's altitude due to the reduced air density at the condenser. Summit Climate Solutions accounts for this in every installation calculation for Littleton, Aurora, and Lakewood homes, ensuring that the delivered cooling capacity matches the load rather than the nameplate rating. The heating design question for Denver is increasingly answered by dual-fuel heat pump systems. Standard heat pumps lose efficiency rapidly below 35–40°F as the outdoor air becomes too cold for efficient heat extraction — a significant limitation in a market where temperatures regularly drop below that threshold. Cold-climate heat pump technology has advanced to allow operation down to -13°F with useful efficiency, but the most practical solution for many Denver homes is a dual-fuel system: a heat pump that provides efficient heating and cooling during the shoulder months and mild winter days, automatically switching to a high-AFUE gas furnace when temperatures drop below the heat pump's efficient operating range. Aurora and Lakewood homeowners using dual-fuel systems consistently report significant natural gas savings compared to furnace-only heating without sacrificing comfort during the coldest Denver nights. Duct system performance in Denver is affected by the wide indoor-outdoor temperature differential during heating season. A system delivering 130°F supply air through ductwork running through an unconditioned crawl space at 10°F experiences substantial heat loss, and duct insulation levels appropriate for mild climates are insufficient for Denver's heating conditions. Summit's installation assessments for Denver homes include duct condition and insulation evaluation, with duct sealing and re-insulation frequently part of the recommended scope for older Aurora and Littleton homes.
HVAC installation trust is about more than a smooth sales experience. It's about what happens after the crew leaves. Did they pull the permit? Will the manufacturer's warranty be valid? Is the refrigerant charge correct, or will the compressor fail in year three from improper charge at installation? Summit Climate Solutions handles permit applications, schedules and passes municipal inspections, registers your equipment with the manufacturer to activate the full warranty period, and provides commissioning documentation showing the measured performance of your system on day one. We also warranty our installation labor for 1 year. This documentation package exists so that you have legal and contractual protection — not just a verbal promise from a salesperson who may not work there in three years.
Every installation includes a Manual J load calculation and a post-install commissioning report — documented proof that your system is correctly sized, charged, and airflow-balanced for maximum efficiency and comfort.
Problems We Solve
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Permit-free HVAC installations can void homeowner's insurance coverage and create title issues at home sale
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Manufacturer warranties require professional installation documentation — cash installations without paperwork may void coverage
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Incorrect refrigerant charge at installation is the most common cause of premature compressor failure in new systems
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Verbal installation warranties are unenforceable when the technician or salesperson is no longer with the company
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Without commissioning documentation, there's no baseline to distinguish installation quality problems from normal wear years later
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An aging HVAC system over 12 years old consumes 30–50% more electricity than modern high-efficiency units, quietly adding hundreds of dollars to your utility bill every year while delivering inconsistent comfort.
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Uneven temperatures between rooms — too hot upstairs, too cold downstairs — often indicate an undersized or improperly designed system that no amount of maintenance will permanently resolve.
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Refrigerant phase-outs mean that systems running R-22 are becoming increasingly expensive to service as refrigerant prices climb; replacing with an R-410A or R-32 system eliminates this ongoing cost exposure.
Have Questions?
Frequently Asked Questions
Do you pull the building permit for HVAC installation?
Yes. We pull all required permits, schedule inspections, and manage the permit paperwork as part of our standard installation service. The permit cost is included in or explicitly itemized in our installation quote — it is not a surprise add-on. Installing without a permit where one is required is a code violation that can affect your homeowner's insurance coverage and creates disclosure obligations when you sell your home.
How does Summit protect the manufacturer warranty on my new equipment?
We register your equipment with the manufacturer within the required registration window — typically 30–90 days of installation. Registered equipment receives extended warranty coverage (often 10 years vs. the base 5 years for unregistered units). We provide you with the registration confirmation and model/serial numbers for your records. If a warranty claim is ever needed, you have the documentation required to support it.
What documentation do I receive after a new HVAC installation?
You receive: the signed permit and inspection record (where applicable), commissioning data showing refrigerant charge measurements, static pressure readings, and temperature differential at installation; equipment model and serial numbers; manufacturer warranty registration confirmation; our 1-year labor warranty in writing; filter replacement schedule and size; and thermostat programming instructions. This documentation package should be kept with your home records.
What is Summit's labor warranty on a new HVAC installation?
We warranty all installation labor for 1 year from the installation date. If a problem arises that is attributable to installation workmanship — incorrect refrigerant charge, duct connection leak, electrical fault from improper wiring — we return and correct it at no charge for labor. This is separate from and in addition to the manufacturer's warranty on equipment parts. The warranty is in writing on your installation contract.
How do I verify that Summit is qualified to install the brand of equipment I want?
We hold factory certification for Carrier, Lennox, and Trane installations, which are the brands we primarily recommend. Factory certification means our technicians have completed the manufacturer's specific installation training and are authorized to perform warranty service under those brands. Certification documentation is available upon request. For other brands we install (Rheem, Goodman, American Standard), we maintain current training and OEM parts access.
How long does HVAC installation take?
Most whole-home replacements are completed in 6–10 hours — one full day. Multi-zone or new-construction installs may take 2–3 days. We schedule a fixed start time and give you a completion estimate before work begins so you can plan your day.
Do I need a permit for a new HVAC installation?
In most municipalities, yes — a mechanical permit is required for new HVAC installation and must be inspected before the system is commissioned. We handle permit applications, scheduling inspections, and final sign-off as part of every installation. You do not need to manage any of this.
What HVAC brands do you install?
We are authorized dealers for Carrier, Lennox, and Trane — consistently ranked among the top three brands for reliability, efficiency, and warranty coverage. We also install Rheem and American Standard systems based on your budget and preference.
What is a Manual J load calculation and why does it matter?
Manual J is the ACCA-approved engineering calculation that determines the exact heating and cooling capacity your home needs. An oversized system short-cycles, fails prematurely, and leaves your home humid. An undersized one runs constantly and struggles on extreme days. We measure your home precisely rather than guessing by square footage.
Will a new HVAC system really lower my energy bills?
Modern 16–18 SEER2 systems use 30–50% less electricity than a 10-year-old 10 SEER system. Most homeowners recoup the efficiency premium in 4–7 years through energy savings, and enjoy improved comfort and lower maintenance costs throughout the system's 15–20 year life.
Is a heat pump better than a gas furnace and AC?
In moderate climates, a heat pump is more efficient and often cheaper to operate than a separate gas furnace and AC. In regions with extreme winters (below -10°F regularly), a dual-fuel heat pump paired with a gas furnace backup typically delivers the best efficiency and cold-weather performance.
Ready to Get Started
Built on transparency
★★★★★ Rated 4.9 · Trusted by 389+ customers in Denver
Prefer to call? 555-266-5247