Warranties You can count on!

When you choose Alliance Heating & Air, you’re choosing world-class products, expert service, and unmatched protection—backed by our exclusive equipment and service warranties.

Easily set up an appointment with one of our professionals online!

  • How Can We Help You?

Our Services

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Heating Tune-Up

The fastest, easiest, and most affordable way to make sure your heating system is ready for winter is with a heating tune-up from Alliance Heating & Air Conditioning. Our heating professionals follow our step-by-step approach to make sure your heating system can perform at its best.

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Air Conditioner Tune-Up

if their air conditioners are not regularly maintained, they’re far more likely to break down. The fastest and easiest way to give your air conditioner the attention it needs to get you through the summer is by requesting Alliance Heating & Air Conditioning’s air conditioner tune-up.

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New Construction HVAC

We have the experience, facilities and resources to fabricate and install ductwork, hydronic, chilled water and control systems for any new project.

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Indoor Equestrian Stables

Reduce dust, odors, and humidity with ventilation and heating systems that keep horses and riders healthy in every season. Enjoy year-round indoor riding and a safe living environment for your horses and other animals.

Call 203.335.9464 today to schedule a private consultation, or request your appointment online.Call 203.335.9464 today to schedule a private consultation, or request your appointment online.

Giving You Peace of Mind

Alliance does more than deliver expert repairs and customized home comfort solutions—we build lasting trust through reliability, efficiency, and performance you can count on. We stand firmly behind our work, offering a 100% satisfaction guarantee on our services and comprehensive warranties on every product we install. These protections safeguard you from unexpected repair costs, ensure flawless installations, and defend against manufacturing defects—giving you unmatched value and total peace of mind.

We’ve invested countless hours and resources into technician training and rigorous equipment testing to keep failure rates low. But if an issue ever arises, you can rest assured—Alliance has you fully covered.

Protect Your Comfort Investment

Your HVAC system is one of the most important components of your home, and Alliance Heating & Air Conditioning helps you safeguard it with strong manufacturer warranties and extended coverage options. Our team explains your protection clearly, handles registration and documentation, and stands behind every installation with dependable support. Enjoy lasting performance, fewer surprises, and true peace of mind knowing your comfort is covered.

  • Reviews

What Your Neighbors Are Saying About Us

Matt was hardworking, diligent, respectful and solved the problem! I highly recommend he and Alliance.

Elizabeth Tremain

Rheese was great. System working fine. Thanks.

Thomas Kreitler

They came to our house for an after-hours service call and the technician did a great job.

Michael McClung

Great service from Nick. Explained everything. Was contracted through my home warranty company Choice Home Warranty. The warranty company is terrible. I would not recommend CHW. But, Alliance heating & air conditioning provided excellent service. I would highly recommend Alliance.

Jennifer Christensen

This was a wonderful experience from start to finish. Our furnace stopped working and it was freezing. The repair technician came out quickly, tracked down the necessary parts to fix the problem and had our gear up and running again in no time. We highly recommend you use Alliance for all of your heat and air conditioning needs.

Tracey Fox

We had several complex issues with our thermostat involving heat and humidity and Matt was fantastic and resolved them all.

Christine Sachs