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For over forty years, we've helped Centennial homes and businesses with repairing, installing, and maintaining their HVAC equipment. We also carry out indoor air quality tests, heating and cooling equipment inspections, and provide emergency callout services in five counties. Whatever your HVAC needs are, we can help.

Read below to find out more about our services. For questions, call us at (720) 647-5099 or send us a message.

Centennial Heating and Cooling 

Centennial’s average annual temperatures range from 21°F to 86°F. To ensure year-round comfort and reduce the chance of troublesome HVAC breakdowns, regular maintenance is recommended. We know it’s tempting to ignore minor issues, such as occasional overheating or unusual ductwork noises, but doing so risks: 

  • Reduced HVAC energy efficiency. Usually, this is because of drafts, outdated equipment, and leaks. American homes lose several hundred dollars per year to undetected system faults, according to the Office of Energy Efficiency & Renewable Energy.
  • Costly damage caused by overheating, which usually affects internal components like the heat exchanger, as well as electrical wiring short-circuits.
  • Using low energy-efficient appliances to combat uneven indoor temperatures, such as space heaters and portable ACs.
  • Irritating respiratory conditions and allergies, such as asthma and bronchitis, due to the excess build-up of allergens, mold, and dampness.

From 2021 to 2022, natural gas heating bills rose by a quarter. If you hire an HVAC professional, they can help you optimize your setup and ensure it’s running as cost-effectively as possible, so you can rest easy knowing that you’ve done what you can to protect yourself against future energy price rises.

Centennial HVAC Services

Our team’s wide-ranging skill set and experience mean we can take on any HVAC project, regardless of the scale or complexity, such as installing long runs of ductwork in commercial warehouses or troubleshooting domestic heat pump issues.

Below is a rundown of our services:

Home Heating in Centennial

If you’ve never experienced an HVAC breakdown mid-summer or winter consider yourself lucky, as they’re usually stressful and inconvenient. Without a doubt, annual servicing and regular maintenance are the best ways to reduce serious HVAC issues.

Whether it’s a pre-season HVAC checkup, installing a furnace, or repairing a water heater in Centennial, we’re here to help homeowners and businesses 24/7/365. We’re experienced working with all types of heating and cooling equipment, ranging from smart thermostat ductless setups to heat pumps.

If you’re considering replacing your current setup, take our HVAC repair or replace quiz beforehand. While Ultimate Heating & Cooling never suggests replacing equipment unnecessarily, it’s possible another contractor might. New installations typically start at several thousand dollars, so our quick quiz could save you a lot of money or at least give you a heads-up that a new HVAC is on the horizon.

Whatever type of home heating setup you have, our low-cost tips below will improve your home’s warmth:

  • Pull warm air trapped at ceiling height down to the floor using your fan’s reverse function.
  • Prevent short cycling, which is when HVACs get trapped in an overheat-shutdown-restart loop, by replacing or cleaning your air filters each season.
  • Close your curtains outside of daylight hours to keep thermal heat indoors. With thermal curtains, you can boost warmth even further as well.
  • Slow the rise of warm radiator air by installing floating shelves above the unit. Also, consider placing aluminum foil behind wall-mounted units to prevent heat from escaping through the walls.
  • Increase airflow indoors by adjusting your ductwork dampers, if you have them. For forced air heat setups, duct-booster fans are another option as well.
  • Improve floor insulation using rugs or carpets, including on top of existing ones.
  • Circulate unused warm air around your home by opening your shower or kitchen doors, when in use.
  • Install a chimney balloon to prevent drafts.
  • Create customized heating-cooling schedules using a smart thermostat. Read our guide to learn more about smart thermostat installation.
  • Stop window and door drafts by applying foam weather-stripping to the frames. Fill cracks and gaps elsewhere in your home with caulk or a similar product.
  • Insulate pipes with slip-on foam tubes to prevent them from freezing in cold weather.
  • Prevent heat escaping through windows that you don’t see out of, like a small basement or bathroom window, by sticking bubble wrap to the glass.

Air Conditioning in Centennial

Local homes and businesses use a wide range of cooling systems, ranging from floor- and window-mounted ACs to ductless mini-splits and evaporative cooling systems. We offer air conditioning installation in Centennial, as well as repair and maintenance services. Our HVAC team is experienced with all makes and models and is certified by NATE, which is the most nationally recognized HVAC training body.

We handle air, geothermal, and water source heat pump installations and repairs, too. Although the upfront cost is high–averaging $5,000–they can cut your electricity bill in half. If you’re unfamiliar with the technology or want to learn more, our heat pump FAQs explain the pros and cons.

Home Air Quality in Centennial

Indoor air quality directly affects your health and well-being. With regular HVAC maintenance, you’ll improve your home’s air quality, as it prevents the spread of dust, allergens, and harmful contaminants indoors.

Maintenance also keeps indoor relative humidity (RH) at safe levels. Below 30% RH is dry air. If left unchecked, it can damage your home’s interior surfaces, such as flaking paint, chipped plaster, and wood decay. It also causes a range of irritating health ailments, such as sinusitis, dry throat and skin, and chapped lips. For tips to balance your home’s humidity, the signs of poor indoor RH, and the benefits of humidifier units, check out our guide to fixing dry air in winter.

Carbon monoxide (CO) poisoning is the one air quality issue that every home and business should protect themselves against. It causes at least 430 deaths per year, with a third of those deaths taking place between December and February. The reason it’s such a killer is that your body’s red blood cells pick up CO quicker than oxygen, causing you to lose consciousness and suffocate in just a few minutes. Fortunately, with a regular store-bought CO detector, it’s easy to identify unsafe CO levels and protect yourself against its devastating effects. Learn more about the risks, symptoms, and causes by reading our guide: What You Need to Know About Carbon Monoxide in Your House.

For help with improving your indoor air quality, contact us to book an HVAC technician. We offer whole-home air quality tests too, which look for:

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

Ductless Heating and Cooling Centennial

If you want to provide heating and cooling to an area of your home that’s unable to fit traditional bulky ductwork, such as a loft or basement, try a ductless setup. Their duct-free design and small diameter conduit, containing refrigerant lines and cabling, fit easily into any size space. Upgrading under-used rooms with HVAC increases your home’s resale value by an average of $10,000 and turns it into a space that’s comfortable to spend all day in or safely store items throughout cold winters and hot summers. If you ever sell your home, recouping the cost of ductless HVAC isn’t hard either, as it costs as little as $5,000.

Ductless has other benefits over traditional HVAC, too:

  • Improved energy efficiency. Ducted versions use up to 3,500 watts per hour vs. 2,000 watts per hour for ductless.
  • Offers excellent indoor air quality, thanks to its professional-grade air filters.
  • Low maintenance and fast installation (1 to 2 days), because of the lack of ductwork.

The median age of Centennial real estate is less than 40 years old. Properties older than 30 years cost 3% of their original purchase price to maintain per year and properties less than a decade old cost just 1% of the purchase price. For a $100k, 30-year-old property, that means annual maintenance costs of $3,000 versus $1,000 for a 10-year-old one.

However old your home is, ductless HVAC is a great way to reduce your energy bills. Plus, you can take those cost savings and use it for other home maintenance tasks. In 2020, Colorado electricity cost 12.75¢/kWh and the average home consumed 10,715 kilowatt-hours (kWh) in a year. Ductless setups use 30% fewer kWh, compared to ducted models, so you could save a considerable amount of money each year.

If you’re unsure whether your home is ready to do away with ducts, read our post: Is My Home Right for Ductless? We’re also available to answer your questions over the phone or via e-mail. Contact us today for free advice and to learn more about our comprehensive range of ductless HVAC repair, maintenance, and installation services.

Ductwork Repair Centennial

We repair all types and models of ductwork, as well as their fittings. Whether you need a long section of wide-diameter round duct replacing or patching up a few seals, no job is too big or small for us. Below are a few ways we repair and improve ductwork:

  • Balancing airflow with jumping ducts or transfer grilles.
  • Insulating unconditioned spaces, such as lofts and garages, to increase energy efficiency
  • Ductwork airflow and leak tests
  • Sealing leaks
  • Cleaning ducts to remove harmful airborne contaminants, like VOCs, as well as odors

Not sure if your ductwork needs repair? Look out for these telltale signs of trouble:

  • Odors or fumes wafting from the basement or ground floor into other rooms
  • Excessive indoor dust
  • Strange ductwork noises
  • Poor airflow
  • Hot or cold spots on drywall
  • Peeling or degraded seals
  • Damaged or rusted ductwork
  • Uneven room temperatures
  • Higher than normal energy bills

Centennial Home HVAC Inspections

Before the start of the winter or summer, hire a professional to inspect your HVAC system to avoid any unexpected mid-season problems. Our inspection services include checking CO and smoke detectors for faults, checking for blockages in your system, and testing the electrical resistance of your ignitor switch—all of which are essential to ensure the safe functioning of your heating and cooling setup.

HVAC inspections are useful for buying or selling a property, too. We offer whole-home, pre-purchase inspection services to ensure that no costly or unsafe issues are overlooked. It costs just a few hundred dollars and covers a wide range of checks, such as the roof condition, signs of dampness, clogged drains, and insulation quality. Our post, Why You Need an HVAC Inspection, outlines all you need to know about the process.

For questions or to schedule an inspection, contact us.

Top HVAC Company in Centennial

We’re one of the most knowledgeable and professional HVAC companies in Centennial, and we've serviced local homes and businesses for over 40 years. We have dozens of reviews and an average rating of 4.5* to 4.8* on Google, Yelp, and Angi:

  • “The technician was nice, polite, and knowledgeable, and the price to inspect and perform repairs was fair. I will use them again.” — Martha
  • “This is the third time that I've had Ultimate Heating to my house to correct problems created by the original installers. Ultimate technicians are very knowledgeable, arrive on time, and complete the work in a very professional manner. I highly recommend them for any heating and/or AC repair.” — Richard
  • “They were really good. They were really quick with their service and they pretty much repaired our air conditioning and it's been working great since. It was a positive experience overall. They were available. They came over the next day. We would use them again. I don't think they were charging us more than everyone else.” — Judy
  • "I have been a customer of Ultimate for the past 7 years and have been very happy with the service they provide. They have a preventative maintenance program that keeps my furnace and A/C in perfect operating condition each season. They are reliable and honest, and I highly recommend them to anyone looking for a great HVAC company." — Sally

HVAC Experience and Quality

We’re a fully licensed and insured company. We have won several Carrier’s President's Awards, certification from the Building Performance Institute Inc., and accreditation from the Better Business Bureau (BBB). Our technicians are NATE-certified too, so they undergo rigorous and regular HVAC training on all types of HVAC equipment.

Learn more about our company’s aims and values via our short promo video:

HubSpot Video



We Know The Centennial Metro Area

We’ve serviced homes and businesses in five counties for nearly half a century and worked on thousands of local projects, such as new constructions in Centennial and repairing HVAC in older properties.

Want to learn more about our recommended HVAC options for local homes? Read our guides: The Most Popular Home HVAC systems in Centennial, and Choosing an HVAC System for Your New Home Construction in Centennial.

For questions, advice, or to schedule an appointment, send us a message!

Centennial HVAC Customer Support

HVAC trouble in Centennial? Our team is on call to help 24/7/365. Call (303) 289-2070, describe the problem, and we’ll give you a solution in under 5 minutes (for free). We’ll send one of our technicians if we can’t resolve it over the phone. It’s $69 for the first 30 minutes and we provide free equipment estimates, too. 

When our technicians suggest HVAC equipment upgrades, such as replacing a boiler, they always follow the Manual JSD process. The protocol, developed by the Air Conditioning Contractors of America (ACCA), ensures only the most optimal and correctly sized HVAC is installed. For a deeper look at its benefits and what’s involved, read our Manual JSD Services overview.

We offer promotions, new equipment rebates, financing, and discounts on repairs. For additional savings, sign up for one of our three annual maintenance plans. Prices start at $125 per year and cover a range of component safety checks and tasks, including:

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

Whether you rent or own a home, or look after one for somebody else, we know that maintenance is stressful and challenging. However, with our team’s expertise, care, and advice, we’ll make HVAC maintenance hassle-free.

For questions, advice, or to book an HVAC technician, message us or call (720) 772-4291.

Highly recommend I will never use another company.... thank you for saving my family in the -8 weather

Brian V. - Commerce City, CO

Super fast, professional, and reasonable. Great first impression. Happy with my choice so far.

Jim R. - Commerce City, CO

Honest contractors - didn't push work that wasn't essential and kept the prices reasonable for our Thornton townhome. Highly recommend Kyle.

Sophia O. - Commerce City, CO

RepairAny Make Or Model

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

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InstallationOnly Quality Systems

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

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ServiceLengthen Your System's Life

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

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