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10 Best HVAC Companies in Littleton, CO

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Written By Bradford Cuthrell

Last Updated April 2024

According to the Department of Energy, approximately 55% of the energy used in American homes is used for heating and cooling. Since such a significant portion of your utility bill goes toward heating and cooling, you'll want to make sure the HVAC system in your Littleton home is functioning optimally.

We've researched and assembled this guide to the top HVAC companies in Littleton to help you choose the right person for your job and get your system into top shape.

Top 10 Best HVAC Companies in Littleton

MileHi HVAC Contractor Denver

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4885 S Broadway, Englewood, CO 80113 (720) 770-0055 milehihvac.com

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Free quote

Reliable customer support

Clear pricing policy

Services Offered

Ductless
Indoor air quality
Furnace installation
Boiler installation
Ac repair
Inspection
Maintenance
Furnace repair
Filtration
Ventilation
Ac installation
Duct cleaning
Emergency services

WireNut Home Services

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4901 E Dry Creek Rd Suite 290, Centennial, CO 80122 (303) 731-1966 thewirenut.com

Reliable customer support

Free quote

Informative resources

Clear pricing policy

Services Offered

Ac installation
Furnace repair
Maintenance
Boiler repair
Inspection
Furnace installation
Ac repair
Ductless
Duct cleaning
Filtration
Boiler installation
Emergency services

UniColorado Heating & Cooling

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2700 W Evans Ave #100, Denver, CO 80219 (303) 997-0097 unicolorado.com

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Free quote

Clear pricing policy

Prompt service delivery

Informative resources

Services Offered

Inspection
Ac repair
Furnace installation
Indoor air quality
Ac installation
Furnace repair
Duct cleaning
Ductless
Emergency services
Ventilation
Maintenance

Elkhorn Heating & Air Conditioning, Inc./Elkhorn Electric, Inc.

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3869 Norwood Dr #9, Littleton, CO 80125 (720) 615-0098 myelkhorn.com

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Reliable customer support

Informative resources

Free quote

Services Offered

Maintenance
Furnace repair
Ac installation
Filtration
Boiler installation
Ac repair
Ductless
Smart home integration
Furnace installation
Emergency services
Indoor air quality
Inspection

Gustafson Heating & Air Conditioning Inc.

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2585 S Raritan St, Englewood, CO 80110 (303) 922-6289 gustafsonheating.com

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Free quote

Clear pricing policy

Prompt service delivery

Reliable customer support

Services Offered

Furnace repair
Furnace installation
Indoor air quality
Maintenance
Ac installation
Zoning systems
Emergency services
Smart home integration
Ac repair
Ductless
Ventilation

Steel T

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2750 S Shoshone St, Englewood, CO 80110 (303) 761-9276 steelt.com

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Clear pricing policy

Reliable customer support

Free quote

Services Offered

Furnace installation
Inspection
Maintenance
Ventilation
Ac repair
Furnace repair
Ductless
Emergency services
Ac installation
Filtration
Indoor air quality

Front Range Mechanical Services

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4530 S Decatur St, Englewood, CO 80110 (303) 980-5544 frmscolorado.com

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Reliable customer support

Services Offered

Maintenance
Ac repair
Furnace installation
Indoor air quality
Furnace repair
Radiant heating
Ac installation
Ventilation
Boiler installation
Filtration
Duct cleaning
Ductless

Day & Night Mechanical Solutions, Inc.

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3270 W Alameda Ave, Denver, CO 80219 (303) 936-2696 dnmech.com

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Free quote

Reliable customer support

Clear pricing policy

Prompt service delivery

Services Offered

Boiler repair
Maintenance
Ventilation
Emergency services
Furnace repair
Furnace installation
Ac repair
Ac installation
Boiler installation
Ductless

Southwest Heating & Air Conditioning Repair

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8109 W Brandon Dr, Littleton, CO 80125 (720) 727-6232 southwestheating.com

Prompt service delivery

Free quote

Informative resources

Reliable customer support

Services Offered

Ac installation
Boiler installation
Ac repair
Ductless
Filtration
Furnace installation
Boiler repair
Duct cleaning
Furnace repair
Indoor air quality
Maintenance

Littleton Heating and Air Conditioning

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12415 N Dumont Way Unit 103, Littleton, CO 80125 (303) 798-3880 littletonair.com

Clear pricing policy

Reliable customer support

Free quote

Informative resources

Services Offered

Furnace repair
Zoning systems
Ductless
Ac installation
Boiler installation
Furnace installation
Maintenance
Ac repair
Duct cleaning
Indoor air quality
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on hvac companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

Signs You May Need HVAC Repair or Replacement

A faulty or aging HVAC system probably needs attention from a professional who can make repairs or install a new unit. Look out for these common signs that your HVAC needs service:

  • Cracking, corrosion, or rust
  • Higher than normal energy bills
  • Thermostat malfunctions or temperature control issues
  • Odd noises when turning on
  • Refrigerant leaks
  • Frequent breakdowns and need for repairs
  • Poor air circulation or uneven heating/cooling
  • An HVAC system that's over 15 years old

If you notice any of the above, it's wise to have a local HVAC technician inspect your system. They can identify problems and let you know whether repair or full HVAC replacement is the best course of action.

Cost of HVAC Installation and Maintenance in Littleton

What you spend on HVAC installation or maintenance varies based on your system style. Common HVAC unit styles include the following:

  • Split or mini-split: If your home doesn't have the right ductwork for central heating or air, you likely have a split HVAC system. Split or mini-split systems consist of interior units that control the temperature in individual rooms. These interior units are all connected to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system functions very similarly to a standard split system. It has the advantage of having the capability to use either electricity or gas for power.
  • Heat pump: Heat pumps transfer hot and cold air between your home and outside. These systems don't make their own heat or AC, so they work better in more temperate climates.
  • Packaged heating and air: Packaged HVAC systems are a practical choice for smaller houses. These systems have a single combined AC and heating, typically located in a basement or attic. They're compact, cost-effective, and easy to maintain.

HVAC costs differ based on the work needed. HVAC systems are complex and may need several types of maintenance. Costs for common jobs are as follows:

HVAC Unit TypeCost
Split$1,968-$5,017
Hybrid Split$3,988-$7,347
Heat Pump$3,088-$31,465
Packaged Heating and Air$258-$431

Ways to Save Money on HVAC Costs

Repairing or replacing your HVAC system when needed is important, but can be costly. Thankfully, there are actions you can take to minimize wear and tear over time on your system.

  • Monitor for potential problems. Keeping an eye out for problems, for instance by routinely checking your thermostat and energy bills, allows you to resolve them before they get out of hand.
  • Keep your system clean. Keeping your indoor evaporator coil, ductwork, grills, and condenser fan blades clean helps your system function optimally and reduces the risk of mold growth. The National Air Duct Cleaners Association recommends cleaning your HVAC system when it starts to look dirty.
  • Change the position of your blinds seasonally. During winter, leave your blinds open so your home benefits from passive solar heat. In summer, keep blinds shut to block out heat. Doing both reduces the amount of work your HVAC system needs to do.
  • Change filters regularly. Replacing or cleaning your air filters every 30–90 days helps air flow efficiently through your HVAC system. You should also try to prevent dirt and debris from building up around the outdoor sections of your system.
ServiceCost
Filter Replacement$65-$172
Condensor Cleaning$1,292-$3,876
Thermostat Repair$86-$215
Ductwork Cleaning$413-$1,034

How To Choose a Local HVAC Company

It's important to know what makes a good HVAC company. A properly licensed contractor with the right experience will give you confidence that they can keep your system running efficiently, providing you with effective air conditioning and heating for your home.

Compare Multiple Bids

Contact at least three HVAC providers for quotes. Describe the issues and have technicians visit to inspect your system if possible. Compare the providers' explanations, solutions, estimated costs, warranties, and timeframes. Avoid contractors that pressure you or demand payment upfront.

Check Credentials

It's important to choose an HVAC company that employs technicians with the proper qualifications and expertise. HVAC contractors in all states have federal requirements set by the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, an individual must pass an exam (the type of exam depends on the kind of equipment they intend to work with). Section 608 certification is required for all technicians who "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." All other licensing requirements are handled on a state-by-state basis.

Colorado doesn't have state-level licensing requirements for HVAC contractors; however, those who operate an HVAC business are required to have a Colorado business license, as well as insurance. It's a good idea to check with your municipal government to determine if there are any local licensing requirements for HVAC contractors. Additionally, contractors that do electrical or plumbing work in addition to HVAC work must be registered with the State Plumbing Board or the Colorado Electrical Board, respectively. Checking reviews on the Better Business Bureau (BBB), Google Reviews, Yelp, and similar sites can assist your decision. Choose a provider with great reviews and reports of positive experiences from customers.

Understand Work Details

Always make sure you know what a company’s process looks like. When HVAC repairs are needed, ask your provider to specify which parts require replacement and explain why. Confirm that your technician will clean and test the full system afterward to ensure proper operation. When replacing your HVAC, request that the company explain the new brand, model, estimated installation time, features, and energy efficiency. Before work starts, make sure you understand how your provider will determine the right system size for your home and what the price will be.

Compare Warranties

Reliable HVAC companies provide warranties for their work. Broader coverage is better, so make sure to review warranties between companies. Choose the one that offers the best coverage at a fair cost.

Get Quote in Writing

Get a written estimate before HVAC work starts. A comprehensive quote includes both materials and labor costs. Make sure you understand and accept all terms before signing the contract.

Frequently Asked Questions About HVAC in Littleton, CO

You should have your HVAC system inspected about twice annually. After completing their inspection, your technician will tell you what services are required. You should also call a technician if you notice new issues such as unusual smells, strange noises, or leaks. If your home has ductwork, it should be inspected every few years.

Usually, it's a good idea to have your HVAC system inspected in the spring and fall, as technicians tend to be less busy at these times. This also helps make sure your system is prepared for the summer and winter, when it probably sees the most use.

You can save energy throughout the year by reducing the amount of work it takes for your HVAC system to maintain the temperature of your home. Always keep your thermostat as close to the outside temperature as you can, and try to adjust it only a few degrees at once. You could also consider getting a smart thermostat.

It takes around one to three days to have an HVAC system installed or replaced. If you need just an air conditioning unit or a furnace, this might take anywhere from a few hours up to two days. This timeline will be affected by the size of your house, the accessibility of your system, and any issues your technician discovers.

For a 2,000-square-foot home, you'll need between 2.5 and 5 tons of air conditioning capacity. For homes over 1,000 square feet, central air will generally be more effective than window units for cooling.

For a 2,000-square-foot home, you'll also look for a furnace that is between 50,000 and 80,000 BTUs (British thermal units).

Your HVAC company might offer financing options via a third-party lender, or you may choose to obtain a loan on your own. It's a good idea to discuss payment options with a financial advisor and your HVAC company to make sure that you're choosing the best option for you.

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