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Energy Efficient HVAC featured image

Energy Efficient HVAC

Smarter Systems. Real Savings.

Upgrade to high-efficiency HVAC systems designed to deliver excellent performance with lower energy costs. As an Energize CT and Mass Save participating contractor, we don’t just install the right equipment — we help make sure you get the programs and incentives you’re eligible for, without the hassle.

Smarter Comfort

Efficient solutions for every home

Upgrade to high-efficiency HVAC systems designed to deliver excellent performance with lower energy costs. As an Energize CT and Mass Save participating contractor, we don’t just install the right equipment — we help make sure you get the programs and incentives you’re eligible for, without the hassle.

Stafford worker

Additional Services

  • Water Heaters

    We work with you to make sure the water heater we install is properly configured for the size and demands of your home.

  • Indirect Water Heaters

    Indirect water heaters offer efficient water heating for your home. Using your home’s heating system to heat the water, an indirect system can be a cost-effective means of providing hot water throughout your home.

  • Water Heater Repairs

    We’ll get your water heater back up and running for you with expert water heater repairs performed by our expert technicians.

  • Commercial Services

    Power your business with expert HVAC solutions that keep your workspace running smoothly, efficiently, and comfortably.

  • Commercial Air Conditioning

    Boost productivity and comfort with cooling that works as hard as your team does—even on the hottest days.

  • Commercial Boilers

    Power your business with dependable boiler systems that deliver steady warmth and minimal downtime.

  • Building Automation Systems

    Control your entire building’s climate from your phone—because smart executives deserve smart HVAC.

  • Chillers

    Stay cool and efficient with chillers built for durability, eco-friendly performance, and nonstop reliability.

  • Cooling Towers

    Beat the heat with cooling towers engineered for quiet, dependable performance that keeps your operations chill.

  • Dehumidification

    Kick moisture to the curb with dehumidification that protects your space from mold, mildew, and mid-day stickiness.

  • Ductless Split Systems

    Bring precision comfort to tricky spaces with a ductless system that heats, cools, and conquers inefficiency without breaking a sweat.

  • Energy Audits

    Discover where your building’s energy is sneaking off to—and how to save it (and some money) with a smart commercial energy audit.

  • Commercial Heating

    Keep your team toasty and your business running smoothly with powerful, efficient heating solutions built to last.

  • Humidification

    Restore comfort and balance to dry office air with humidification that keeps skin happy and floors from creaking.

  • HVAC Maintenance

    When your HVAC system throws a tantrum, fast expert repairs and replacements get your business back to business in no time.

  • HVAC Repair Replacements

    When your HVAC system hits a rough patch, expert repairs and replacements get your comfort back on track fast.

  • Commercial Oil To Gas Conversion

    Make the switch from oil to gas and enjoy smoother operation, lower costs, and greener comfort for your business.

  • Rooftop Units

    Keep comfort sky-high with durable rooftop units that deliver reliable heating and cooling season after season.

  • Ventilation Systems

    Breathe easy with ventilation that keeps your air fresh, clean, and your building at its best.

  • Plumbing Repair

    When things get messy, we get moving. Count on quick, expert plumbing repairs that restore calm (and flow) to your home.

  • Leak Detection

    Leaks don’t scare us. Our experienced technicians identify them, provide you with solutions, and fix the issue with minimal disruption.

  • Backflow Testing

    Keep the bad stuff out of your clean water. Our backflow testing makes sure everything flows the right way—always.

  • Water Filtration

    Upgrade your water quality. Our whole-home filtration and conditioning systems keep your water fresh, healthy, and easy on your pipes.

  • Tankless Water Heaters

    No tank, no wait, no cold surprises. Our tankless systems deliver nonstop hot water with smart, efficient performance.

  • Plumbing Installation

    Renovating or dealing with old pipes? We install dependable plumbing that keeps your home running smoothly.

  • Sewer Line Services

    Our plumbers diagnose, repair and replace damaged sewer lines to keep waste flowing safely away.

Full List Of Services

Your Full-Service AC Contractor

At Stafford, we handle everything that keeps you cool. From new installs to tune-ups and repairs, our full-service team has you covered every step of the way.

AC MAINTENANCE & TUNE-UPS
AIR CONDITIONING REPAIR
System replacements
New system installs
Ductless AC Systems
Geothermal AC systems

24/7 SERVICE

Day or night, weekends or holidays, we’re here when you need us most. Our team is on call 24/7 to keep your home or business comfortable—no waiting, no worries.

Certified Technicians

Our certified technicians know air conditioning inside and out, from the latest high-efficiency systems to reliable classics still running strong. They take pride in doing every job the right way—the first time, every time—so you can stay comfortable without a second thought.

10-Year Warranty

Choosing Stafford Mechanical Services as your heating and air conditioning contractor, means you’re also choosing innovative heating and air conditioning solutions and products from Carrier that come with an incredible 10-year warranty.

Financing Available

We understand that upgrading your heating or air conditioning system can be big investment. That’s why Stafford Mechanical Services offers great financing options to help make things a little easier on your wallet.

Your Full-Service Cooling, Heating and Plumbing Contractor

At Stafford Mechanical, we handle your HVAC and plumbing needs. From new installs to tune-ups and repairs, our full-service team has you covered every step of the way.

24/7 SERVICE

Comfort doesn’t take a day off, and neither do we—available 24/7, even on weekends and holidays.

Certified Technicians

Our certified techs know AC from brand-new to vintage cool. One visit, done right, so you can relax and enjoy the breeze.

10-Year Warranty

Choose Stafford and get smart comfort solutions from Carrier—backed by a 10-year warranty. Now that’s peace of mind.

Financing Available

Upgrading your HVAC can be a lot—luckily, Stafford offers financing to keep your wallet happy.

  • 24/7 SERVICE

    Comfort doesn’t take a day off, and neither do we—available 24/7, including weekends and holidays.

  • Licensed, Certified Technicians

    Our certified techs have the knowledge and experience to get the job done in one visit.

  • 10-Year Warranty

    Choose Stafford Mechanical and get smart comfort solutions from Carrier—backed by a 10-year warranty. Now that’s peace of mind.

  • Financing Available

    Contact us today to learn more about what options may work best for you!

Save up to on a new system

Save up to $2,000 on qualifying heat pumps and hundreds of dollars on qualified HVAC equipment.

The word on Stafford

Stafford Mechanical

4.8

Based on 150+ reviews

Paul Nycz

Fall

2025

Just had a new furnace and A/C compressor installed by Stafford Mechanical. Excellent service all around from Rich down to the Technicians who did the work. Fast, friendly, professional and competitive. I would highly recommend. I will be using them for future needs.

Tony Gagnon

Summer

2025

I have lived in my home for 32 years and have had several HVAC Companies doing various jobs but no one has ever matched the service I got recently on the replacement of my Carrier AC Unit. The crew was friendly, knowledgeable and highly professional. They deliver 5-star workmanship and their attention to detail made the system the most efficient it can be. I got several bids and Stafford Mechanical had the lowest saving our family lots of money. My only regret is that I didn’t discover them sooner! I highly recommend them.

Timothy Gillane

Summer

2025

We thought very highly of the people who did the work (removal of our old a/c system and replacement with a new one). They were polite, friendly, helpful, and willing to answer questions and give explanations. They tried to have as little impact on our daily lives as possible, and cleaned up after their work very well. We were impressed with how hard they worked (despite extremely hot days), for how long they worked each day, and by how nice they were. On the day the installation itself was finished, they stayed until well after 5 p.m. to make sure everything was running properly.

Lisa Bucklin

Summer

2025

Bill did a great job working on my A/C system. He is very good at his job and his knowledge is great.
He took the time to explain the process to me every step of the way!!

Scott Oshana

Summer

2025

SMS was great. AC went out in the middle of the night and they sent Wyatt out first thing when I called. He did a great job of diagnosing the problem, explaining it to me and taking care of the issues. All within an hour or so. Great guy, and I had AC back – not unimportant on a 94 degree day.

Sarah H

Summer

2025

Had our A/C wall units cleaned and serviced. Brian and his helper (sorry I didn’t get his name) did an amazing and thorough job. Our units are run and smell much better now. Thank you!!

Ryan Guers

Summer

2025

Bill was incredibly patient, hardworking, and thorough. He quickly diagnosed the issue, clearly explained every step, and worked tirelessly to restore our A/C just in time for the upcoming heat wave. It was an overall great experience from start to finish. Professional, knowledgeable, and kind—couldn’t ask for better service. Two thumbs up!

Beth Beebe

Summer

2025

Matt O was very friendly and professional. He took the time to answer all my questions and to explain in layman terms so I can fully understand. I would highly recommend Stafford Mechanical Services Inc based on my experience.

Sally Rowell

Spring

2025

We recently had a tankless propane water heater replaced. It was a pleasure to work with Mike Lynch and crew. The job was completed seamlessly .We have used Stafford Mechanical for several years and they continuously take pride in their work. I would definitely recommend Stafford Mechanical Services.

Luis Medina

Spring

2025

The Stafford Mechanial Services team was great. From the first call to get a quote to the team coming out and doing the installation, all very professional and on-time. I would highly recommend.