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HVAC Services in Denver CO

Need a qualified emergency HVAC contractor? Call today at 303-948-8808 or 720-404-8952!


A rundown of what we do

Residential & Business

Sentry Heating & Cooling services both residential and commercial properties. If your heating or AC system is in need of repair, or a brand new system needs to be installed, contact our professionals today. We offer free estimates and are here to answer any questions.

Furnace Installation

At Sentry Heating & Cooling, we provide the highest level of quality in new furnace installation and all jobs are performed by knowledgeable technicians you can trust. We specialize in heating system installation, repair, service, cleaning, and certification. Our staff members all have years of experience with furnace installations, so let us put our knowledge to work for you!

For an estimate on your furnace installation, call us today!

Boiler Installation

We are dedicated to creating long-term relationships with our clients by providing top quality boiler products. Specializing in boiler system installation, repair, service, cleaning and certification we have the training and expertise to provide you with first-rate, cost-effective boiler services.

Whether your boiler needs are big or small, commercial or residential, count on Sentry Heating & Cooling in Littleton CO for excellence in all work, from inspection to follow-up.

Radiant Heat / Heat Pumps Installation

If you’re looking to upgrade or replace the heating system in the Denver CO area you may wish to consider in-floor radiant heating or a heat pump.

A highly efficient system that is widely considered to provide the most natural and comfortable heat for your home, an in-floor radiant heating system is fairly simple to install and provides a thorough, even heat that will warm your house.

At Sentry Heating & Cooling, we specialize in the installation of in-floor radiant heating systems and equipment. Warm up your home with in-floor radiant heating, call today and schedule an estimate!

Hot Water Heaters

Do you have an old, outdated water heater? Sentry Heating & Cooling installs and repairs hot water heaters. If you are looking for a high-efficiency hot water heater or tank-less water heater call the professionals at Sentry Heating & Cooling in Denver Colorado today.

Digital Thermostats

Sentry Heating & Cooling installs digital thermostats for homes and businesses. Digital thermostats can provide a more accurate reading of your home’s temperature. Many options are available including programmable and nonprogrammable, WIFI enabled and touch screen. Contact one of our professionals today to learn more.

AC Units (Central, Evaporative Coolers) Installation, Service, Repair, and Cleaning

Looking to escape the heat? Our skilled technicians install a variety of AC Units including central, split and wall units. We provide professional installation services for residential, commercial and industrial consumers. We install ac units throughout Littleton, Denver and the surrounding areas. Does your current AC unit need cleaning? It’s important for AC units to be cleaned yearly. To ensure you are breathing the cleanest air possible call Sentry Heating & Cooling for a professional cleaning. For a free estimate or for more information, contact us today!

For a free price quote on a new heating or cooling installation, Call Sentry Heating & Cooling in Littleton CO at 303-948-8808 or 720-404-8952 today!

Serving within a 50 mile radius of Littleton CO