New High-Efficiency Hot Water System + One Year of Free Home Comfort Club

GEM service team posing together in front of branded vehicle

Cape Cod Summers Are No Match for GEM

Salt air, high humidity, and temperatures that climb fast put serious demands on your cooling system.

When your air conditioner struggles to keep up, your Dennis home becomes uncomfortable in a hurry. GEM Plumbing & Heating Services, LLC provides expert air conditioning repair for homeowners throughout Dennis and the Cape Cod region. Our NATE-certified technicians arrive with fully stocked trucks, diagnose problems accurately, and complete repairs that last.

Same-day service, 24/7 emergency response, and over 75 years of New England experience mean you get your comfort back without delays. Call GEM today for air conditioning repair services in Dennis.

(833) 222-2953


24/7 Emergency AC Repairs

A cooling breakdown during peak summer season can’t wait until morning.

When your air conditioner fails on a hot July night or during a holiday weekend, GEM is available. Our Cape Cod technicians respond around the clock to restore your comfort no matter when the problem happens.

(833) 222-2953


Call GEM. We’re in Your Neighborhood!

GEM serves Dennis and communities throughout Cape Cod.

Our technicians work across all five villages, from the historic sea captain’s homes along Route 6A in East Dennis to the beach cottages near West Dennis and Dennis Port.

We understand the unique cooling demands that come with coastal living and the mix of year-round residences and seasonal homes throughout the area. Backed by one of New England’s largest HVAC fleets, GEM reaches you fast with the expertise to handle most repairs in one visit. Need AC repair services in Dennis? Give GEM a call today!

Years in Business

Skilled employees

Emergency Service

Trucks on the Road

GEM technician working on indoor HVAC system with homeowner

(833) 222-2953

It’s Easy to Schedule Your AC Repair With GEM!

When your air conditioner stops working, the repair process shouldn’t add to your stress.

GEM makes everything straightforward from your first call to the finished job.

Our technicians arrive when scheduled, prepared with diagnostic tools and common replacement parts. We respect your time and get to work immediately.

Before any work begins, you’ll see a complete quote explaining the repair and its cost. The price we quote is the price you pay, with no hidden charges.

GEM’s NATE-certified HVAC professionals bring real expertise to every service call. We diagnose problems correctly and fix them right the first time using quality parts and proven methods.

After completing the repair, we test your system thoroughly to verify proper cooling and safe operation. We’ll walk you through what we did, answer your questions, and share tips for preventing future issues. GEM’s team remains available for ongoing support whenever you need it.

We Repair All Types of AC Issues in Dennis

Coastal conditions create unique challenges for air conditioners, and our technicians know how to solve them.

GEM’s air conditioning repair team handles the full range of issues Dennis homeowners face.

Your AC runs but the air isn’t cold. Our air conditioning repair technicians in Dennis will determine whether low refrigerant, compressor failure, or another issue is preventing proper cooling and restore cold air to your home.

An air conditioner that turns on and off every few minutes wastes energy and stresses components. GEM’s air conditioning repair specialists in Dennis will find the cause and restore steady, efficient operation.

Grinding, rattling, or squealing noises indicate mechanical problems that need immediate attention. GEM’s air conditioning repair technicians in Dennis will diagnose the source and fix it before minor wear becomes major damage.

When your electric bill spikes without explanation, your AC is likely working harder than it should. Our Dennis team will locate the inefficiency and repair it to bring your energy usage back to normal.

If some areas of your home stay comfortable while others remain warm, your system has a distribution problem. GEM’s air conditioning repair team in Dennis will restore balanced cooling throughout your entire house.

When your air conditioner won’t turn on at all during summer heat, you need help immediately. GEM provides 24/7 emergency air conditioning repair in Dennis to get your cooling restored fast.

GEM service vehicles parked outside customer home

(833) 222-2953

GEM Technician Explaining Plans to Customer

(833) 222-2953

Why Work With GEM for AC Repair Services in Dennis?

Cape Cod homeowners need an HVAC company that understands coastal conditions and delivers reliable results.

GEM has built that reputation across New England for over seven decades.

GEM has served families across the region since 1949. With 500 service vehicles and over 700 trained employees, we bring substantial resources and deep expertise to every job. 

Waiting days for AC repair during Cape Cod’s busy summer season isn’t practical. GEM provides same-day air conditioning repair throughout Dennis so you can restore comfort without delay.

New England families have trusted GEM for generations because we consistently deliver quality work, honest communication, and dependable results.

No surprise bills, no hidden charges. You’ll know exactly what the repair costs before we start, and that price won’t change when the work is complete.

GEM handles everything your home needs, from air conditioning and heating to plumbing and electrical work. One trusted company for every system under your roof.


What Our Customers Are Saying

100% Satisfaction Guarantee

4.6
Based on 9643 reviews
gilbert serra
10 hours ago
Very pleasant and very honest, and they cleaned up after their work and would definitely use them again.
Bob Strouse
11 hours ago
Great service, very clean and professional. Very happy with Gem.
Karen Gray
12 hours ago
Working with Nick to get all my bathroom faucets replaced was a pleasure. Karen Gray
Alyssa Zelman
12 hours ago
Great communication, went the extra mile, professional and friendly. Came out same-day, on-time. Def recommend!
Allan Barbash
14 hours ago
Great service he was very thorough.
Darlene ONeill
14 hours ago
Xavier was confident, efficient, knowledgeable, prompt and treated his trainee with respect.
Dale Abbott
17 hours ago
Great job. They know their “stuff”!
Jim Walsh
19 hours ago
Super fast response time (called at 4:00 on Monday and Mike & Chris were at the house at 11:15 on Tuesday). Mike and Chris were excellent, diagnosed the source of the odor (bad wax ring) and completed the job by 12:15.
Everything from the initial phone call to the quick response from our techs and the repair of our system was an A+! Would recommend to everyone.
GEM was one of only services that got back to me and scheduled me on the same day! Colin was quick, professional, and someone I felt safe having in my home. You get what you pay for!
Corey was outstanding , very helpful, informative and friendly !
Noemi Jordan
1 day ago
Khorey J. and his colleague did an excellent job inspecting our heating and cooling mini-split system. They took the time to explain the issues in detail and gave us peace of mind and at ease by ensuring that everything was working properly. They also explained and demonstrated when the condenser fan should turn on at various temperatures and settings. Both men were knowledgeable, professional, polite, and respectful. We have been customers of Gem Heating and Plumbing for many years, and, as always, they were there when we needed their services. Thank you, Gem Plumbing!
John O'Leary
1 day ago
Efficient and spot on always
Michael Hoff
2 days ago
John did a great job servicing our central heat pump and boiler. He was thorough and a great communicator. Thanks!
Joe Burgess
2 days ago
Great people Very professional Explanation of everything Excellent job
Patricia Criner
2 days ago
Very personable guys Joe and Landon did a thorough inspection and make sure I completely understood all options for the future
Cindy Mossman
2 days ago
Electrical replacements
Peter Rintels
2 days ago
Have used GEM several times. After some rough experiences with some other HVAC companies, I can say GEM has been consistently outstanding. Highly recommended.
We had an emergency service performed on Saturday, the technician Chris was professional and talked me through everything he was doing. I’d rate his overall work on a scale of 1-10 as over 10 because he was that awesome. What gets me is the pricing of the service. As I mentioned it was an emergency, and as the customer I want an itemized breakdown of parts and labor. I just called GEM and they mentioned they do not provide that. I will continue to call until I get the satisfaction I want on full disclosure of MY billing statement the was paid for in FULL by MYSELF. I know GEM reads these reviews and I want my fully itemized bill for services rendered.
Very satisfied with the service
Bill Cater
2 days ago
The GEM team, Richard (Rickey) and Gabriel along with the electrician were extremely professional. They cleaned up the entire work site with great care to ensure no dirt was left behind. Xavier was outstanding during the service call. happy and highly recommend.
Alyssa Nguyen
2 days ago
Josue & Mike were the two technicians that came and did the work for our home. They were absolutely amazing and did an amazing job! Took their time to make sure everything was done right.
We were not getting heat from our boiler. It was old and not working properly. Richard walked us through a new boiler purchased. Thanks.
Stephen Pratt
3 days ago
Kevin did a great job and explained everything he did to my boiler
Carol Ferrera
3 days ago
Great job! The technicians are kind, courteous, professional and knowledgeable. Thank you!!

What to Expect When You Work With GEM

Finding a contractor you can trust isn’t always easy, especially when you need help fast.

There can be a sense of hesitation when you work with an air conditioning contractor for the first time; GEM is here to calm your nerves and make the process simple, transparent, and stress-free from start to finish.

Our NATE-certified HVAC professionals combine technical expertise with respect for your home and your time. We arrive on schedule, in uniform, and ready to solve problems efficiently. From start to finish, you can expect courteous, respectful service from every member of the GEM team.

We explain what’s happening with your system in straightforward language, outline your options, and answer every question thoroughly. With GEM, there’s never any confusion, just honest, straightforward answers you can trust.

Before any work begins, you receive a detailed quote that clearly explains the repair and the cost. No vague estimates, no hidden fees. We want you to feel confident in every decision and know exactly what to expect from start to finish.

As a Carrier Factory Authorized Dealer and Mass Save® partner, GEM meets the highest standards for training, safety, and technical expertise. Our technicians use proven techniques, quality materials, and industry-leading standards to ensure your system runs safely and efficiently. At GEM, we don’t settle for “good enough”; we aim for results that last.

GEM Plumbing Heating Cooling & Electrical branded technician portrait

(833) 222-2953

customer and technician interaction

Prevent Future AC Problems With GEM’s Home Comfort Club!

Regular maintenance is especially important for air conditioners working in coastal environments.

GEM’s Home Comfort Club gives Dennis homeowners the routine care their cooling systems need to run reliably through every Cape Cod summer.

Our certified technicians clean critical components, check refrigerant levels, inspect electrical connections, and optimize system performance. Catching small problems early prevents them from becoming expensive emergencies.

Members also enjoy priority scheduling and repair discounts. Give us a call or contact us online today to enroll or to learn more!


Other HVAC Services You May Need


Schedule Air Conditioning Repair in Dennis, MA With GEM

When your air conditioner is not keeping up with coastal heat and humidity, GEM provides dependable service focused on careful diagnosis and effective repairs.

Our technicians work to correct performance issues, improve efficiency, and restore steady cooling throughout your home. From simple service calls to more involved air conditioning repair in Dennis, MA, every job is completed by experienced professionals who prioritize accuracy, reliability, and long term system performance.

GEM technician in front of service truck


FAQ

How often should my air conditioner be serviced?

Annual maintenance is recommended to keep your AC running efficiently and catch potential problems before they cause breakdowns. For homes in Dennis exposed to salt air and coastal humidity, regular service is especially important for protecting your equipment and extending its lifespan.

What causes an air conditioner to stop cooling?

Common causes include low refrigerant, clogged filters, compressor failures, or electrical problems. A professional air conditioning repair inspection in Dennis will pinpoint the issue and get your system cooling again.

Do you offer emergency AC repair in Dennis?

Yes. GEM provides 24/7 emergency air conditioning repair in Dennis. Whether your system fails at night, on a weekend, or during the height of summer tourist season, our team is ready to respond and restore your comfort.

How much does air conditioning repair typically cost?

The cost depends on the type of repair and the condition of your system. GEM provides upfront, transparent pricing before any work begins, so you’ll know exactly what to expect with no surprises.

Should I repair or replace my aging air conditioner?

If your system is over 10 to 15 years old, requires frequent repairs, or no longer cools efficiently, replacement may be the better investment. GEM’s air conditioning repair specialists in Dennis will evaluate your equipment honestly and recommend the most cost-effective option for your South Dennis ranch or East Dennis colonial.

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