We provide the highest quality heating, ventilation, and air conditioning (HVAC) service and repair in the Westminster area. At L&M HVAC & Mechanical, we aim to educate and inform our Colorado customers about their heating and cooling options. You can be sure our experts are ready to provide you with maximum comfort at a great value. We service all brands and models, so call us or request service online today.

Air Conditioning

If you need a new air conditioner or replacement installed, or if your system requires repairs or maintenance, our L&M HVAC & Mechanical HVAC team is the qualified and professional crew for the job. We are ready to provide the service, repair, and maintenance you need to stay comfortable during the higher temperatures here in Westminster.

Air Ducts

According to ENERGY STAR®, a joint program of the US Environmental Protection Agency (EPA) and US Department of Energy (DOE), leaky ducts in attics or crawl spaces can account for 20 percent or more of your Colorado home’s heating and cooling energy losses. Our HVAC professionals install, inspect, and repair ductwork to keep your conditioned air where you want it.

Air Handlers

An HVAC air handling unit is the indoor part of your heating and cooling system. An air handler circulates both cool and hot air, depending on the season. When properly matched with a heat pump or air conditioner, an air handler will help you maximize the overall efficiency of your HVAC system. Here at L&M HVAC & Mechanical, we have a range of solutions so you can find the right air handler for your home.


Boilers provide a highly effective heat option, have a long life, can reach high heating efficiencies, and some require little or no pumping energy. If you currently have a boiler and it has been a while since you have had maintenance performed on it, or if you are thinking of installing a boiler, call L&M HVAC & Mechanical.

Ductless Systems

Ductless systems, also known as mini splits, offer more flexibility than traditional HVAC systems in that ductless systems do not use ductwork. They are also smaller than traditional heating and cooling systems, which means they typically use less power. Ask us about this economical and versatile HVAC solution.

Gas Furnaces

Do not get left in the cold! Is your furnace acting up, blowing cold air, or making too much noise? Our experienced team of L&M HVAC & Mechanical professionals is here to keep your Westminster home warm and cozy. Our heating professionals repair all makes and models.

Heat Pumps

For Westminster homes with no access to natural gas, heat pumps offer an efficient, reliable solution for heating and cooling. Additionally, they provide high energy efficiency, saving you in energy costs. Ask us how a heat pump can help keep you both warm and cool.

Indoor Air Quality

Turn to your indoor air quality experts at L&M HVAC & Mechanical to help make your Westminster home healthier and more comfortable. Our team can provide a variety of indoor air quality products and solutions to help keep your home’s air clean, so you can breathe a little easier.


Many HVAC maintenance services require the knowledge, skills, and tools of a professional. In addition to changing your air filter, our L&M HVAC & Mechanical maintenance expert will perform a thorough cleaning, make any necessary adjustments, and alert you to possible concerns. Schedule regular maintenance to help keep your heating and cooling systems performing at their peak levels.

Sheet Metal

Whether you are in need of a small piece of sheet metal or a custom design/build here in Westminster, L&M HVAC & Mechanical specializes in sheet metal fabrication. When we take on your project, you can be sure of personalized treatment, expert customization, and a finished project that delivers top value for your investment.

Water Heaters

Heating water can account for up to 20 percent of your average home energy bill. With new green initiatives for energy efficiency, people are now replacing their old water heaters with new, more energy-efficient models. Though these new water heaters may sometimes be a more costly up-front investment, they can definitely save you money over the long run.

Zone Control Systems

We offer zone control because your comfort is important to us. Gone will be the days of hot or cold spots throughout your house. Your Westminster home will be as you have always dreamed it should be—comfortable in every room.

Need HVAC Service?

Contact the experts at L&M HVAC & Mechanical.

Call us at 720-490-9443!