North Denver, CO Air Conditioning And Heating Services

North Denver, CO Air Conditioning And Heating Services


A good quality air conditioning and heating system ensure your comfort level. You don’t want to remain sweaty or shivering even at the comfort of your home! To ensure optimal performance of your HVAC system throughout the year, maintenance and repairs are a must.

For instance, you might have heard people comparing the winters of Colorado to that of Alaska. Now, your furnace blowing cold air in the middle of the night sounds dreadful! But don’t worry, at 303 Heat, we are an award-winning HVAC company known for top-notch cooling and heating services in Thornton, CO.

An essential appliance of a household is a heating and cooling system. You might need your heating and cooling system periodically during summers and winters because of extreme temperatures. You also may need to call the professionals for furnace repair in Westminster, and Thornton CO if you do not maintain it annually. Your heating and air conditioning efficiency depends on proper and timely maintenance.

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About Us

303 Heat is a family-owned business established in 2013. With over 25 years of experience, we have emerged as a popular choice among the residents of North Denver, CO, and surrounding areas.

We are a NATE-certified HVAC company known for expert HVAC repairs, installation, maintenance, and much more. Our quality services and excellent customer care have made us an award-winning HVAC company. We were recently awarded as the “Best HVAC Professionals in Thornton”, by

Whether you are looking for AC service or a furnace installation in Thornton, CO, we are here to the rescue. As your comfort specialists, we strive hard to guarantee 100% customer satisfaction.

What Services Do We Offer?

We take pride in serving residential heating and cooling system across North Denver, Northglenn, Thornton, and surrounding areas.

Here are some necessary services that you might need to ensure your AC system runs efficiently and smoothly: 

Air conditioning

AC Repair

Our technicians inspect vital components of AC units, such as compressors, fan motors, evaporator units, condenser units, thermostats and others. During the AC service in Thornton, CO, if any faults are found in the components, the technician will recommend repairs or replacements.

It would help if you serviced air conditioners regularly to ensure optimum performance. Before summer, check your air conditioner thoroughly at least once a year and call the repair service if you find any irregularity.

AC Installation / Replacement

Installing your new air conditioner requires removing the old one, especially if you’re replacing it with a similar model. As part of this process, your air conditioning installer will protect the surrounding area and clean up any debris left behind.


The installation of your new air conditioner will begin once your old one has been removed. A new thermostat is usually included with a new air conditioning system. In addition to installing your new thermostat, your installer will perform any necessary repairs. 


After the air conditioning system has been installed, our technician will perform a final check to avoid any unnecessary repairs in the future. You will also learn how often you should perform basic maintenance tasks independently.

Emergency AC Service

An emergency repair is something that can’t wait until professional help arrives. Depending on the cause, this can be anything from a low cooling output to an electrical malfunction or bad smell. You can usually detect the need for emergency air conditioning repair before your system breaks down if you don’t ignore the signs that it’s having trouble.

In the following situations, You may consider a broken air conditioner an emergency:

  • You have a broken air conditioner on a scorching day.
  • Water is leaking from your AC and causing damage to your home
  • When it turns on, your AC constantly trips your breaker, dims the lights, or emits a burning smell.

AC Maintenance

Your air conditioner can last longer if you maintain it properly. Homeowners can make their units up to 15 percent more efficient by regularly replacing their filters! A manufacturer’s warranty or repair warranty may also require annual maintenance to remain valid. Various yearly maintenance plans are available to suit different budgets and needs. Aside from priority service and discounts on products and repairs, technicians offer programs that also provide member perks.

Services that keep your heating system up to date

Here are some necessary services that you might need to ensure your heating system runs efficiently:


Heating Installation / Replacement

Your heating experts will take several steps to ensure your new heating system is installed correctly and safely. As part of these steps, worn-out parts will be replaced, the professional will run diagnostics, and an in-depth tutorial will be provided.


Identifying and resolving potential problems can improve the efficiency of your heating system. All parts of your HVAC system will be cleaned and in good repair to eliminate any safety hazards. Additionally, they will test any built-in safety measures to ensure they are working correctly. They will thoroughly check any vents or flues for cleanliness, undamaged, and proper venting by your HVAC technician.

Emergency Heater Repair

Most people who suspect their furnace is malfunctioning during the winter will immediately look for heating repair in Westminster and Thornton. A person must first determine whether their heating system problems are an emergency.


Our experienced technician can identify and rectify potential threats that are barely noticeable now but can lead to costly HVAC heating repair in Westminster and Thornton in the future. Once the filter has been replaced, our technician will clean the unit to remove accumulated dirt and grime. Heating systems require the following maintenance:

  • Make sure the controls are calibrated and the thermostat is reading accurately
  • To prevent friction, lubricate moving parts
  • They will check safety hazards, and electrical connections will be tightened


Along with the tasks performed for both systems, a heating tune-up should also include the following to avoid unnecessary heating repair in Westminster and Thornton:

  • Ensure that the oil or gas connections are in good working order
  • They must check the burner combustion
  • Check for cracks and leaks in the heat exchanger
  • Make sure the oil or gas pressure is correct


Here are some essential furnace services to keep the furnace system running perfectly: 

Furnace Installation/Replacement

A new furnace system requires the replacement of any outdated or worn-out components. A new heat pump will probably need a new refrigerant line system to prevent acid buildup or leaks. Our heating specialist will perform several diagnostic tests while the heating installation is being done during furnace services in Westminster, CO.

Emergency Furnace

If you are having issues with your furnace’s ignition, you won’t be able to heat your room effectively. If there is a problem with combustion, a yellow flame rather than a blue one will be visible. Due to incomplete combustion, carbon monoxide gas could be present. Although the gas cannot be seen, the yellow flame indicates a leak. The occupants of the house may be at risk in such a case. As a result, it is advised that you turn off the furnace and contact 303 Heat for emergency heating service in Westminster, and Thornton CO


First and foremost, furnace maintenance ensures that your furnace can run safely. The guarantee on your furnace is validated by routine care. You may save money on furnace repairs by having a valid warranty. Your furnace can run more effectively with regular maintenance. The accumulation of soot and debris over time may indicate that your furnace isn’t operating as well as it should. Your furnace’s life expectancy can be increased with routine maintenance. In other words, you make the most of your furnace. Doing this may prevent malfunctions that leave your family without heat. You can also save money on emergency expenses.


Our specialist for heating services in Westminster, and Thornton CO, will clean and adjust the components and mechanisms within your furnace during a tune-up. It will ensure that the furnace operates effectively all winter long. Additionally, your technician will thoroughly examine any possible issues before they become significant furnace malfunctions.

Choose 303 Heat If Your Heating or Air Conditioning System has Issues

At 303 Heat, we’ve built our business around the idea that our customers deserve the best treatment, starting with trustworthy technicians. Every one of our technicians is licensed, qualified, and receives regular training to stay up-to-date with the latest developments and products in the industry. To learn more about air and heating service in Westminster, and Thornton CO, call (720) 465-6699.

Why Choose Us?


We emerge as a trustworthy HVAC company in North Denver, CO, because of our following qualities.

Unmatched Expertise

We are a NATE-certified HVAC company. All our technicians are hired only after skill check, thus ensuring the best-in-class quality of our repairs and services.

Happy Clients

We are a family-owned business, so we understand the value of family comfort and responsibilities. We treat our customers like our own family and work accordingly.

Upfront Pricing

We believe in honesty and 100% transparency. Our prices remain upfront and are calculated before the work begins.

No Hidden Fees

We believe in honesty and 100% transparency. Our prices remain upfront and are calculated before the work begins.

Reasonable Services

Being a family-owned business, we take care of your budget. Whether routine maintenance or a furnace replacement in Thornton, CO, all our services are priced at the most affordable prices.

Schedule a Service


Are you planning to schedule a service with us? Don’t miss out on the exclusive promotions this season. Whether you are getting a new AC or applying for HVAC financing, we have exciting discounts and offers for all. Our primary aim is to ensure long-term comfort for you and your family.

So, are you looking for the best cooling and heating services in Thornton, CO? Call us at (720) 704-3405 to schedule a service now!

303 Heat Air Conditioning And Heating Services, Repairs, Installations, and Maintenance in North Denver, CO.


Frequently Asked Questions

The average lifespan of a heating and air conditioning system is around 15 to 20 years. However, it can vary depending on factors such as regular maintenance, usage, and quality of installation. 303 Heat offers expert air conditioning and heating services in North Denver, CO, to ensure the longevity and efficiency of your system.

Heating and air conditioning systems are essential for maintaining comfortable indoor temperatures throughout the year. Heating systems keep homes warm during cold winters, while air conditioning systems provide cool air during hot summers. At 303 Heat, a trusted air conditioning and heating services provider in North Denver, CO, we ensure your comfort by offering top-notch services for your HVAC system.

AC units should be serviced at least once a year. Regular maintenance helps ensure optimal performance, energy efficiency, and prolongs the lifespan of your AC unit. At 303 Heat, we offer comprehensive air conditioning services in North Denver, CO, to keep your system in shape.

If AC is not serviced, it can lead to various issues such as decreased cooling efficiency, higher energy consumption, increased risk of breakdowns, reduced lifespan of the system, compromised air quality, and potential health hazards. Regular air conditioning services are essential to maintain optimal performance and prevent costly repairs. Contact 303 Heat for professional air conditioning services in North Denver, CO, and surrounding areas.

You should stop using the air conditioner when the desired indoor temperature is reached or when the weather cools down enough to rely on natural ventilation. It's also important to turn off the AC when leaving your home for extended periods. For professional guidance on air conditioning usage and to ensure optimal performance, contact 303 Heat, your trusted provider of air conditioning and heating services in North Denver, CO.

To protect your air conditioner in the winter, cover the outdoor unit with a waterproof cover, clean and insulate the pipes, and schedule regular maintenance. Contact 303 Heat for air conditioning and heating services in North Denver, CO, for expert assistance.

The warning signs that your heating system is failing include inconsistent temperatures, strange noises, frequent cycling, increased energy bills, and the age of the system. If you notice these issues, it's time to contact 303 Heat for professional heating services in North Denver, CO.