10 Best HVAC Companies in Golden, CO

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Last Updated: February 25, 2025

On average, Americans devote 55% of their energy usage to heating and cooling their home, according to the Department of Energy. With Golden's cold winters, you likely feel like you're spending even more than that. The average monthly heating bill for a resident of Golden is $170.

We've assembled this guide to the top HVAC companies in Golden to help you hire the best person for your job and get your system into top shape.

Top 10 Best HVAC Companies in Golden

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KJ Thomas Mechanical

KJ Thomas Mechanical Logo

Our Rating

User Rating

6175 Trevarton Dr, Longmont, CO 80503 (303) 435-8141 kjthomasmechanical.com

Reliable customer support

Free quotes

Clear pricing policy

Prompt service delivery

Informative resources

Services Offered

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

Controlling Systems

Controlling Systems Logo

Our Rating

User Rating

7000 N Broadway #1-106, Denver, CO 80221 (720) 445-8906 controllingsystemsco.com

Clear pricing policy

Informative resources

Prompt service delivery

Free quotes

Services Offered

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

Sanders and Johnson Heating and Cooling

Sanders and Johnson Heating and Cooling Logo

Our Rating

User Rating

7100 Broadway #7K, Denver, CO 80221 (720) 594-2176 sandersandjohnson.com

Clear pricing policy

Prompt service delivery

Free quotes

Reliable customer support

Informative resources

Services Offered

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

MileHi HVAC Contractor Denver

MileHi HVAC Contractor Denver Logo

Our Rating

User Rating

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

Clear pricing policy

Free quotes

Informative resources

Reliable customer support

Services Offered

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

Now Heating and Air

Now Heating and Air Logo

Our Rating

User Rating

8661 Rosemary St, Commerce City, CO 80022 (303) 287-8000 nowha.com

Free quotes

Informative resources

Prompt service delivery

Reliable customer support

Clear pricing policy

Services Offered

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

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

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

Our Rating

User Rating

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

Prompt service delivery

Reliable customer support

Informative resources

Free quotes

Clear pricing policy

Services Offered

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

Steel T

Steel T Logo

Our Rating

User Rating

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

Free quotes

Clear pricing policy

Reliable customer support

Informative resources

Prompt service delivery

Services Offered

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

D.N.I. Heating-Cooling-Refrigeration-Plumbing

D.N.I. Heating-Cooling-Refrigeration-Plumbing Logo

Our Rating

User Rating

14196 Co Rd 7, Mead, CO 80542 (720) 868-5291 dniheating.com

Clear pricing policy

Reliable customer support

Informative resources

Free quotes

Services Offered

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

WireNut Home Services

WireNut Home Services Logo

Our Rating

User Rating

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

Clear pricing policy

Informative resources

Free quotes

Reliable customer support

Services Offered

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

Grand Home Services, LLC

Grand Home Services, LLC Logo

Our Rating

User Rating

4267 S Argonne St, Aurora, CO 80013 (720) 365-1187 grandhomeservicesllc.com

Clear pricing policy

Prompt service delivery

Informative resources

Free quotes

Services Offered

Boiler repair
Ac installation
Furnace repair
Ac repair
Furnace installation
Ventilation
Indoor air quality
Maintenance
Zoning systems
Ductless
Boiler installation
Inspection
Emergency services
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 malfunctioning or aging HVAC system probably needs professional attention from a technician who can make repairs or install a new unit. Watch out for these common signs that your HVAC needs service:

  • Uneven heating/cooling or poor air circulation
  • Frequent breakdowns and need for repairs
  • Refrigerant leaks
  • Strange noises when the system turns on
  • Unusually high energy bills
  • Thermostat malfunctions or temperature control issues
  • Corrosion, cracking, or rust
  • An HVAC system that's over 15 years old

If you notice any of these HVAC red flags, your system evaluated. A local company can complete an inspection, identify problems, and advise you whether you should repair or replace your HVAC unit.

Cost of HVAC Installation and Maintenance in Golden

Your HVAC installation or maintenance cost fluctuates depending on the type of unit. Common HVAC unit types include the following:

  • Split or mini-split: If your home lacks the ductwork for central heating and cooling, you likely have a split or mini-split system instead. Split HVAC systems have internal units in each room to regulate temperature. These connect to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system performs similarly to a standard split system, but is able to utilize either electricity or gas for power.
  • Heat pump: Heat pumps move hot and cold air between your home and the outside. These systems don't produce their own heat or AC, so they work more effectively in milder climates and may not be as effective during Golden's cold winters.
  • Packaged heating and air: Packaged HVAC systems are a great choice for smaller houses. They have a single heating and cooling unit, usually in an attic or basement. This unit is often space-saving, cost-effective, and easy to maintain.

HVAC maintenance costs differ depending on what services are needed. HVAC systems are complicated and might require different maintenance services. Costs for common services are as follows:

HVAC Unit TypeCost
Split$2,003-$5,106
Hybrid Split$4,058-$7,477
Heat Pump$3,142-$32,020
Packaged Heating and Air$263-$438

Ways to Save Money on HVAC Costs

HVAC upkeep is important, but can be expensive. Thankfully, there are steps homeowners can take to reduce wear and tear on their HVAC and lower future maintenance needs.

  • Monitor for potential problems. Monitoring your system for problems — for example, by checking your thermostat and energy bills regularly — helps you get ahead of problems before they get too expensive.
  • Change filters regularly. Switching out 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.
  • Change the position of your blinds seasonally. During winter, leaving your blinds open allows your home to benefit from passive solar heating. In the summer, keeping your blinds shut helps to block out heat. Doing both reduces the amount of work your HVAC system must perform.
  • Keep your system clean. Keeping your condenser fan blades, indoor evaporator coil, grills, and ductwork clean helps your system run and reduces the risk of mold growth. The National Air Duct Cleaners Association recommends cleaning your HVAC system when it starts to look dirty.
ServiceCost
Filter Replacement$66-$175
Condensor Cleaning$1,315-$3,944
Thermostat Repair$88-$219
Ductwork Cleaning$421-$1,052

How To Choose a Local HVAC Company

Finding the right HVAC company is key for a smooth installation or repair. An experienced, credentialed HVAC contractor gives you confidence your system can provide reliable heating and air conditioning year-round.

Compare Multiple Bids

Get quotes from at least three HVAC contractors. Explain your issues and ask if specialists can inspect your system in person. Review each company's diagnoses, recommended solutions, estimated cost, timelines, and warranties. Avoid companies that pressure you or demand payment before work.

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 from the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, contractors must pass an exam (the type of exam depends on the kind of equipment they plan 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 run 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 local licensing requirements for HVAC contractors. Any contractors who do plumbing or electrical work in addition to HVAC work must be registered with the State Plumbing Board or the Colorado Electrical Board, respectively. Checking reviews on Yelp, the Better Business Bureau (BBB), Google Reviews, and similar sites can help your decision. Choose a provider with stellar reviews and stories of positive experiences from customers.

Understand Work Details

Always make sure you understand what a company’s process looks like. When HVAC repairs are needed, ask your provider to explain which parts require replacement and explain why. Confirm that your technician will clean and test the full system after finishing the work to verify proper operation. When getting a replacement, ask your contractor to explain the new HVAC system features, model, energy efficiency, estimated installation time, and brand. Before signing a contract, you should understand the process your provider will use to properly size the system for your home and the price you'll pay.

Compare Warranties

Trustworthy HVAC companies stand behind their services with warranties. Look at warranties from different companies, remembering that more comprehensive coverage is better. Look for the provider that offers the most coverage for a fair price.

Get Quote in Writing

Always get HVAC bids in writing before work begins. A detailed quote covers costs for both labor and materials. Make sure that you agree to all terms before signing the contract.

Frequently Asked Questions About HVAC in Golden, CO

Normally, you should have your HVAC system inspected twice a year. After that inspection, your HVAC technician will tell you what services are needed. You should also call a technician if you notice any new issues, such as unusual smells, strange noises, or leaks. If your home has ductwork, it should be serviced every few years.

The best times of the year to have an HVAC inspection are the spring and fall. Technicians are less busy during these times, so it will be easier to get an appointment. This also ensures that your system is ready for the summer and winter, which is when it normally sees the most use.

You can save energy throughout the year by making it easier for your HVAC system to maintain your home's temperature. During all seasons, keep your thermostat as close to the outside temperature as possible, and avoid making drastic changes — adjust it only a few degrees at a time. You might also consider purchasing a smart thermostat.

It takes around one to three days to have your HVAC system installed or replaced. If you only need an air conditioning unit or a furnace, this might take between half a day and two days. This timeline will be affected by the size of your house, how easily accessible your system is, and any new issues your technician discovers.

For a 2,000-square-foot home, try to purchase a furnace that's between 50,000 and 80,000 BTUs (British thermal units). In Golden, you'll be better off going with a furnace on the higher end of (or even above) this range.

For a 2,000-square-foot home, you'll also want to purchase an air conditioning unit with between 2.5 and 5 tons of capacity. Generally, if your home is larger than 1,000 square feet, central air will be more effective than window air conditioning units.

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

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