<img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=2263329550564035&amp;ev=PageView&amp;noscript=1">

The Best HVAC Company in Denver, CO

Ultimate Heating & Cooling has been serving
the Denver Metro Area for over 40 years.

As a family-owned HVAC business servicing the Denver area for over forty years, we understand the requirements of local homeowners and tailor our services to your needs. Whatever type of home you live in, be it an old ranch, a Denver Square, or a downtown apartment, our team is well-versed in installing, maintaining, and repairing all types of HVAC equipment used in the Denver area.


Our Services




Any Make Or Model

No matter the make or model, we can fix it. Call now if you need help with repairs!



Only Quality Systems

We only install the best systems, guaranteed to be cost-effective and energy efficient.

service (2)


Lengthen Your System's Life

We provide thorough equipment checks and maintenance to make your system last longer.

In a Home Improvement Research Institute (HIRI) study of 6000+ homeowners, HVAC repair was the third most needed service by homeowners after gardening and pest control. Despite this, there’s still a notion that it doesn’t matter which HVAC repair and maintenance company you choose since they all offer the same service. The reality is prices, technical skills, and professionalism vary in the HVAC industry. Unlike others in our sector, our technicians are NATE-certified (North American Technician Excellence), which is the most nationally recognized HVAC training and certification organization.

The benefits of working with a NATE technician include:

  • Expert ability to diagnose, maintain, and repair HVAC equipment because of rigorous training.
  • Regular in-house training ensures their skills are maintained to a high standard and consistently in line with NATE’s uniform requirements.
  • Competency in working with emerging HVAC technologies and new products.
  • Fewer call-backs and warranty returns as technicians understand how to do the job right the first time.
  • High-quality work ensures you're getting maximum value for your money and the job is completed in an efficient and timely manner.

When deciding which HVAC company to work with, it’s important you ask the right questions and know how to determine whether a company and its staff are qualified and reliable. Whether or not you’re in Denver, we have a free guide to help you find the right HVAC company for your needs.

Download the Questions to Ask Your HVAC Company


Denver Heating and Cooling

With average winter lows of 23°F and summer temps exceeding 90°F in Denver, having a reliable home heating and cooling system is a must. Without one, you risk breakdowns and unnecessary discomfort. If your system fails, or it’s not running as efficiently as possible, you could also face:

  • Abnormally high or irregular energy bills. The Energy Information Administration estimates that the average natural gas heating bill will average $746 in 2022, which is a 30% increase compared to last year, so it’s a good idea to ensure your HVAC setup is running as cost-effectively as possible.
  • Heat loss from leaks. Homes lose an average of $300 per year to drafts, leaks, and outdated equipment, according to the Office of Energy Efficiency & Renewable Energy.
  • Health issues caused by mold growth, dampness, and allergens.
  • Risk of fire caused by faulty electrical wiring or undetected foreign objects, such as plastic fragments.
  • Broken furnace components, such as fan belts and capacitors. If these parts fail, the blower motor is likely to overheat, leading to melted casings or cracked heat exchangers.
  • Wasting money running high-wattage appliances, such as a portable electric heater, to counteract the effects of a poorly maintained HVAC system.

Denver HVAC Services

We’re experts in installing and maintaining heating and cooling equipment. Whether you’re a homeowner on a tight budget needing a part replacement on an old furnace, or an owner of a commercial property with a complex duct installation, we handle all types of HVAC work.

Here’s a look at what we do:

Home Heating in Denver

HVAC breakdowns in winter are one of the biggest frustrations for homeowners. One way to reduce potential problems is to regularly maintain your HVAC system and service it ahead of winter. We know it’s tempting to delay check-ups…But, while you might be OK skipping a tree inspection or gutter clean, not looking after your HVAC setup could cause costly call-outs, chilly nights, and unnecessary stress.

HVAC Maintenance Check

Whatever the season or circumstance, our team is available to maintain, repair, and install furnaces, heat pumps, boilers, and water heaters. We have extensive experience with smart thermostats and smart vents, too. The average cost for replacing an entire HVAC system, including any ductwork, is $7,000. To help you avoid unnecessary replacement, try our HVAC quiz to determine whether you should repair or replace your setup.

Apart from repairing and replacing your equipment, there are other ways to improve the warmth of your home, such as:

  • Sealing any gaps and cracks with caulk, weather-stripping, or insulation.
  • Shutting your curtains at night to keep heat in and using thermal curtains.
  • Opening doors to kitchens and bathrooms when in use so that any warm steam can replace cold air elsewhere indoors.
  • Boosting floor insulation with carpets or rugs.
  • Blocking your chimney when not in use to prevent drafts.
  • Using your ceiling fan’s reverse function, if available, to draw any warm air trapped at ceiling height downward.
  • Ensuring your HVAC air filters are clean and in good condition to prevent “short cycling," which is when your system continually shuts down and restarts from overheating.
  • Installing a smart thermostat and using it to create a customized heating-cooling schedule and setting it to respond to changes in weather.

Air Conditioning in Denver

There are six types of home cooling systems commonly installed in Denver homes:

  • Central air conditioners
  • Ductless mini-splits
  • Evaporative cooling systems
  • Window-mounted air conditioners
  • Wall-mounted air conditioners
  • Floor-mounted air conditioners

We offer air conditioning installation in Denver, as well as repair and maintenance services. Ultimate Heating and Cooling is an authorized dealer for Carrier, and our HVAC technicians are NATE-certified and experienced with all makes and models of home cooling equipment. 

HVAC technician talking to homeowner

Heat pumps are another popular choice for Denver homeowners and our team is experienced in installing and maintaining all four types: air-to-air, water source, geothermal, and hybrid. Heat pumps reduce electricity use for heating by 50% and are also highly effective at cooling. To learn more about how they work, as well as their advantages and disadvantages, read our rundown of the most frequently asked questions about heat pumps.

Home Air Quality in Denver

Your home’s indoor air quality is directly linked to your overall health and wellbeing. Routine HVAC maintenance not only optimizes your system’s performance, but also improves air quality since it stops dust and allergens from circulating around your ductwork and infiltrating your rooms.

Dry air can also affect air quality at home. If left unchecked, it can cause a range of minor, but highly irritating, ailments such as dry skin and throat, chapped lips, and sinusitis. It can also damage your home’s interior causing paint, wallpaper, and plaster to chip or wood to flake. Read our guide to fixing dry air in winter, which includes handy hacks for increasing your home’s humidity, the signs of dry indoor air, and the benefits of using a humidifier unit.

The most serious air quality issue all homeowners should defend themselves against is the risk of carbon monoxide (CO) poisoning. Over one-third of CO-related deaths occur between December and February as homeowners close windows and other ventilation sources to maximize warmth and cut down on drafts. If you’re unfamiliar with the symptoms and causes of CO poisoning, check out our guide: What You Need to Know About Carbon Monoxide in Your House.

Get in touch with us for further advice on how to improve indoor air quality or to arrange for a technician to install, repair, or maintain your humidifiers/dehumidifiers, CO detectors, and HVAC ductwork.

We also conduct whole-home professional indoor air quality tests to detect:

  • Radon
  • Asbestos
  • Bacteria and mold
  • Allergens
  • Combustive elements
  • Volatile organic compounds (VOCs)

Ductless Heating and Cooling in Denver

Looking to heat and cool a part of your home that isn’t currently connected to your HVAC system? Attics and garages are two places rarely serviced by HVAC, mainly because they were traditionally used for storage and couldn’t accommodate old-school bulky ductwork. Thanks to ductless HVAC technology, these spaces are now a popular choice for renovating into a spare bedroom or home office. A 2020 study conducted by HomeLight found that converting an unused area into liveable space adds $10,000 to a home’s resale value, and as ductless installation costs as little as $5,000, you can easily recoup some of your investment.

As the name suggests, ductless HVAC setups do away with ductwork, both indoors and outdoors. Instead, they use an outdoor compressor and an indoor air handling unit, which are linked with a three-inch diameter conduit containing electrical wires, a refrigerant pipe, and a drain line. Given ductless HVAC’s simplicity, installation takes just 1–2 days on average. We offer a full range of services for ductless setups, from consultation and installation to repair and maintenance.

Older Denver home

The average age of Denver real estate is 50 years old. Despite their solid build quality, older properties are often more expensive to maintain. In an interview with This Old House, the American Society of Home Inspectors said that homes greater than 30 years old typically cost 3% of their original purchase price to maintain per year. This means a 30-year-old, $100,000 home could cost up to $3,000 per year to maintain. Denver residential electricity averages 11¢/kWh and ductless HVAC consumes at least 30% fewer watts per hour than a ducted setup, so you can save hundreds of dollars per year going duct-free.

We install, repair, and maintain all makes and types of ductless HVAC systems. Read our guide – Is Your Home Right for Ductless? – to learn about its benefits and what homes are best suited to it.

Ductwork Repair in Denver

From rigid rectangular ducts to large flexible round ducts, we repair all types of air transmission parts. ENERGY STAR estimates 20–30% of duct air is lost due to leaks.

The signs of leaking ductwork include:

  • Excessive or increasing amounts of indoor dust
  • Unevenly heated (or cooled) rooms
  • Abnormally high energy bills
  • Worn-out seals
  • Crushed, bent, or rusted ducts
  • Fumes wafting from the basement into other rooms

To repair and improve ductwork, we use a range of solutions:

  • Adding duct insulation in unconditioned spaces to boost HVAC efficiency and reduce heat loss
  • Sealing ducts with aluminum foil tape or sealant
  • Conducting duct leakage and airflow tests
  • Installing jumper ducts or transfer grilles to balance the system’s airflow

In addition to repairing leaks, we also offer duct cleaning, which helps to reduce airborne irritants, allergens, improve air flow, and remove unpleasant odors and smells.

Denver Home HVAC Inspections

Summer and winter are when HVAC is used most frequently. We can help with inspecting your HVAC setup before the start of the season, as well as maintaining and repairing essential components.

The backbone of our inspection work involves:

  • Checking filters, vents, ducts, and flues are in good condition and free of obstructions
  • Ensuring furnace parts, such as the heat exchanger and interior casings, are free of dust and dirt
  • Testing the ignitor switch’s electrical resistance using a multi-meter
  • Testing carbon monoxide and smoke detectors for safe functioning

The expert eyes of our inspection team will also lookout for other problems that could inadvertently affect your home’s temperature regulation and comfort, including roof leaks, poorly insulated water lines, clogged drains, and dampness.

We also conduct full HVAC inspections on homes prior to purchase, so potential buyers can be confident the setup is in good condition and doesn’t require any costly repairs. These inspections typically cost less than $500 and require one to three hours to complete. As HVAC equipment is one of the most expensive home appliances to replace, it’s worth paying for a pre-purchase home HVAC inspection.

Schedule a Home HVAC Inspection


Top HVAC Company in Denver

For 40+ years, we’ve specialized in servicing homes and businesses in the Denver Metro Area and gained a reputation as one of Denver’s best HVAC companies. Our previous clients say UHC is knowledgeable, reasonably priced, and professional. Read what hundreds of our customers have to say on Yelp (4.5*), Angi (4.8*), and Google (4.8*).


HVAC Experience and Quality

Ultimate Heating & Cooling is a licensed and fully insured company with an A+ rating and accreditation from the Better Business Bureau (BBB) and certification from the Building Performance Institute Inc. We’ve also won Carrier’s Presidents Award multiple times. Plus, our NATE-certified team means they receive frequent training on how to maintain, operate, and install all types and makes of HVAC equipment, as well as the latest in home heating and cooling technology such as smart thermostats.

To learn more about our mission to deliver top-quality customer service, check out our one-minute promo video below.


We Know the Denver Metro Area

We’ve operated in the Denver Metro Area for decades, so we understand the needs and issues of local homeowners. Our service areas cover five counties: Adams, Arapahoe, Denver, Douglas, and Jefferson. We’re experienced in installing and maintaining HVAC systems in Denver's new residential constructions, as well as the various HVAC options for older homes.

Send us a message to schedule an appointment and to discuss your requirements!

Denver HVAC Customer Support

We’re available 24/7/365 for anyone with an HVAC emergency in Denver. Call us at (303) 289-2070, explain the problem, and we’ll give you a solution in under 5 minutes (for free). If you need a technician to visit, it’s $69 for the first 30 minutes, and we provide free estimates on equipment replacements.

When suggesting upgrades, our technicians always follow the Manual JSD process. This is a protocol developed by the Air Conditioning Contractors of America (ACCA) to ensure only the most optimal HVAC equipment is installed in any particular home. Check out our Manual JSD Services overview, which explains what the manual JSD process is and its benefits.

Looking to save some cash? We offer promotions ranging from repair offers, rebates, and discounts on new equipment. If you prefer to spread out the cost of payment, we also offer financing options.

For long-term savings, we have three annual HVAC maintenance plans available. Prices start at $125 per year and include:

  • Ignitor condition check
  • Filter replacement
  • Safety component check
  • Blower motor amp draw check
  • Induced draft motor amp draw check
  • Flue slope and corrosion check
  • Inducer motor condition and port clean
  • Blower motor shaft integrity
  • Visual furnace inspection
  • Dust and debris removal from internal unit(s)
  • Thermocouple or flame sensor check
  • Cycle furnace on and off from the thermostat
  • Electrical wire condition

Ready to get your home the HVAC care it needs? Call us at (720) 772-4291 or send us a message!

Send us a message