October Is Breast Cancer Awareness Month

Proceeds of New Installations to Benefit The Gloria Gemma Breast Cancer Research Foundation

GEM service team posing together in front of branded vehicle

Innovation Hub, Immediate Comfort

The city that houses Harvard and MIT deserves AC service that’s equally smart.

Cambridge packs world-class institutions, historic squares, and dense residential neighborhoods into one of the most intellectually vibrant cities anywhere. When summer humidity settles along the Charles and your cooling system fails, the discomfort affects everything from research to rest.

GEM Plumbing & Heating Services, LLC has been solving these problems for New England families since 1949. Our NATE-certified technicians arrive prepared, diagnose accurately, and repair correctly the first time. Same-day appointments, 24/7 emergency response, and transparent pricing mean your comfort returns without the runaround. Call GEM today for air conditioning repair services in Cambridge.

(833) 222-2953


24/7 Emergency AC Repairs

Research doesn’t stop for heat waves. Our service doesn’t either.

When your system fails during a deadline or overnight, GEM responds. Our technicians are available around the clock, serving everything from Kendall Square condos to Cambridgeport triple-deckers regardless of the hour.

(833) 222-2953


Call GEM. We’re in Your Neighborhood!

GEM serves every Cambridge neighborhood and surrounding Middlesex County.

Our technicians work throughout the city, from the Victorians of Cambridgeport to the triple-deckers of North Cambridge, from the historic homes near Harvard Square to the newer developments in Kendall Square.

Whether you have a condo in a converted factory, a single-family in the Avon Hill area, or a unit in a multi-family building, we understand the varied housing stock and cooling demands across Cambridge. One of New England’s largest HVAC fleets keeps a GEM truck nearby whenever you need us. Need AC repair services in Cambridge? 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!

Busy schedules need service that adapts, not adds complications.

We work around your calendar and get the job done without dragging it out.

GEM technicians arrive when scheduled, fully equipped.

You know the cost before work begins. That’s what you pay.

Our NATE-certified technicians diagnose problems correctly and fix them right.

Every repair is tested. We explain what we did and stay available.

We Repair All Types of AC Issues in Cambridge

Historic homes, multi-family buildings, and modern condos present varied challenges.

GEM’s air conditioning repair team handles every type of problem Cambridge residents encounter.

When your AC runs but doesn’t cool, you need answers fast. Our air conditioning repair technicians in Cambridge will determine if it’s a refrigerant problem, compressor issue, or something else, and restore proper cooling quickly.

An air conditioner that won’t run steadily wastes energy and puts unnecessary wear on your equipment. GEM’s air conditioning repair specialists in Cambridge will diagnose the cause and restore efficient, consistent operation.

If your electric bills are rising without explanation, your AC is likely working harder than it should. Our Cambridge team will inspect your system, identify the inefficiency, and make the necessary repairs.

Grinding, banging, or squealing sounds indicate mechanical problems that need immediate attention. Our air conditioning repair team in Cambridge will diagnose the issue and fix it before it causes a complete failure.

When some areas of your home stay warm while others are comfortable, your system has a distribution problem. GEM’s air conditioning repair technicians in Cambridge will restore balanced cooling throughout your entire home.

When your air conditioner stops working entirely during hot weather, you can’t afford to wait. GEM provides 24/7 emergency air conditioning repair in Cambridge to get your system back up and running 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 Cambridge?

A city defined by excellence deserves service to match.

GEM has delivered since 1949.

500 service vehicles. 700+ employees. GEM has the resources to serve Cambridge quickly and solve any problem. 

When your system fails, GEM offers same-day air conditioning repair throughout Cambridge.

Middlesex County residents rely on GEM because we consistently deliver quality work.

The quote we provide is the amount you pay. No surprises.

Heating, cooling, plumbing, electrical. One company handles everything.


What Our Customers Are Saying

100% Satisfaction Guarantee

4.6
Based on 9508 reviews
Joanne Bennett
2 days ago
Exceptional service from GEM. Douglass is absolutely the best !!! … will use them again. Thank You!
buddy croce
2 days ago
Workers were polite and knowledgeable. They diagnosed the problem right away. And we're able to repair it same day.
Steven Pichette
3 days ago
August 27 2025 . Another excellent yearly electrical plumbing , & heating checkup by Eric Governo , Brody Lott , Aiden Cunningham and crew. Thanks! Aug 2025 – Excellent service by Jacob and his coworker . Yearly maintenance on our Generator . Great service as always . Routine maintenance appointment for our boiler . Highly recommended . 2025- same great service for our routine maintenance for our central air unit. May 14, 2026 – great yearly central air maintence by Joe and Anthony . Professional and helpful explaining the inspection they preformed August -18 2026 – we had our yearly maintence for our generator . Aiden was the Gem tech that came out and did the yearly maintence. Aiden was excellent answering all my questions regarding the generator . Was a pleasure having Aiden serviced our yearly generator maintenance August 21-2026. Gem tech Richard stopped by today to go over a couple of issues with our central air unit . Excellent visit and service . August 28 2026 – another great professional visit today by ( Senior ) Joseph . Our central air went down and was fixed in less than 24 hours . Thanks again ! Oct 1 2026 – Erikson M and Demetris arrived to inspect my furnace for its yearly tune up . Another excellent professtional visit. Thank You !
Kate Kelley
3 days ago
I had a plumbing emergency today & GEM had a guy on my doorstep within 1/2 hour. I couldn’t even get a return phone call from anyone else. Excellent service!
Robert Smith
3 days ago
Christopher was efficient and courteous and completed my boiler and split unit heat annual maintenance quickly. Highly recommended!
Maureen Walsh
3 days ago
Rainey was excellent . He explained why my system failed and explained what a new system would cost . We agreed to replace our furnace which was 24 years old . Rainey and Pedro showed up at 8 and before 4 I had a new furnace installed and the old one hauled away .Easily explained all the process , he was excellent
Kate Pomert
3 days ago
the price put me in sticker shock …..but the work was exceptional. they did a great job and explained to me what they did.
Buck Bruce
3 days ago
Seemed very knowledgeable and very informative. Friendly service as well.
Jim Harrod
3 days ago
I was thoroughly impressed with the superb HVAC maintenance service I received from David Santiago and trainee, Kevin today! Before David and Kevin arrived I was very disappointed with having had my original service date rescheduled to what I thought were spurious reasons? In fact David and Kevin arrived after the designated rescheduled date and time today. GEM's communication was excellent throughout and their people seemed genuine and concerned. When David and Kevin arrived it turned the whole situation around. They could not have been more professional and knowledgable! I am now firmly committed to GEM and their Home Comfort maintenance program.
Maren Stack
3 days ago
Professional, informative, and reliable!
Malek Askar
4 days ago
We just had our heating system replaced. We went from forced hot water system to a central heating and air conditioning system done by GEM plumbing and heating company We had Omar and Michael work in our home for 5 days they installed all the ductwork, the furnace and the condenser. These guys were very professional, kind, clean and informative throughout the whole install every day they explaind what they did and what is the expectation for the next day. Today was the last day they walked me through the whole system, how to change the filter how to operate the new thermostat and what to look for when things are not working properly. I say thank you to the whole team from planing to done, all went great to expectations
Donna Rubinate
4 days ago
Erickson was great. Efficient, friendly and through. Very professional
Dawn Riall
4 days ago
Ryan and his crew were excellent. They were very knowledgeable and took the time to explain things to me. They were helpful and looked for alternatives for my situation. Not looking to simply make a buck and drive up the bill. Even went out of their way to clear way the awful spiders and buckets of water. Would highly recommended Ryan and Gem. Thank you.
Perfect call: rapid diagnosis and plan for repair
Jillian Johnson
4 days ago
Responsive. Organized. Tracks warranties and sets up maintenance schedule.. Various experience levels for specific jobs. Quality work. Pricier but worthy.
Nelson did a great job
On time, friendly, professional and thorough testing and maintenance of old gas boiler and hot water heater, tested all radiators. Great communication about exact arrival time and throughout the process. GEM has well trained professionals. Excellent service as part of my maintenance contract.
Mary Maltezos
4 days ago
Both techs were very professional and answered any questions we had. Also showed us how ro replace humidifier filter when needed. Worked steadily, cleaned furnace and replaced parts requested.
Our service rep Rainey was very professional knowledgeable and described the work and process of how GEM works in an easy to understand way. This was our first time using gem and we had a great experience
AXS441 GM
4 days ago
9-30-26 Excellent! Extremely detailed and thorough. Explained all actions clearly, and very pleasant, and knowledgeable. Very impressed and hope to receive his services in the future. Thank you, A ———————- For Friday. Aug. 21, 2026 by John Excellent!! He checked all vents and 2 air handlers To track locations of Freon. Determined proper pressure levels and other settings were ok but not cooking. Very thorough and knowledgeable. Since performed all these checks, Can he return to finish his work!!! Thank you, Ayres Services were related to lg heat pump, Not items that follow… And price not determined not finished..
Alice Wood
4 days ago
Cane same day, very efficient and great helpful hints, very personable
Thanks to Nehemias and Partner for a great job routine maintaining of my hvac system!
Paul Allen
4 days ago
Great customer service
Heidi Gobeille
4 days ago
Colin was so helpful and efficient. Highly recommend
Cp School
5 days ago
Courteous, knowledgeable and prompt service!

What to Expect When You Work With GEM

Professional service should be the norm in a city of this caliber.

At GEM, it is.

Our NATE-certified professionals arrive on time, work efficiently, and respect your space.

We tell you what’s wrong and present options without pressure.

Your price is set before work starts. The invoice matches what you approved.

As a Carrier Factory Authorized Dealer and Mass Save® partner, GEM maintains quality certifications.

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!

Dense housing and diverse systems need consistent attention.

GEM’s Home Comfort Club gives Cambridge residents annual tune-ups that catch problems before they become failures. Our technicians inspect every component, clean coils, verify refrigerant levels, tighten electrical connections, and document system condition. Members receive priority scheduling and repair discounts. Contact us to enroll or learn more!


Other HVAC Services You May Need


Schedule Air Conditioning Repair in Cambridge, MA With GEM

When your air conditioner is not keeping up with daily cooling demands, GEM offers dependable service focused on careful inspection and targeted repairs. Our technicians work to identify the source of performance issues and restore steady, efficient operation.

From basic service visits to more involved air conditioning repair in Cambridge, MA, every job is completed by experienced professionals who prioritize quality workmanship and long term system performance.

GEM technician in front of service truck


FAQ

Do you provide same-day AC repair throughout Cambridge?

Yes. GEM offers same-day air conditioning repair across all Cambridge neighborhoods, from Harvard Square to East Cambridge.

Can you service window units and mini-splits in Cambridge apartments?

Absolutely. We service all types of cooling equipment including window units, wall units, and ductless systems.

What energy rebates are available to Cambridge residents?

As a Mass Save® partner, GEM helps Cambridge homeowners and condo owners access rebates for efficient equipment.

Why does my Cambridge riverside home stay humid?

Charles River proximity creates higher humidity. If your home feels clammy, you may have capacity issues or drainage problems. Our technicians diagnose the cause.

How often should Cambridge residents schedule AC maintenance?

Annual maintenance is recommended for all Cambridge properties. Regular tune-ups maintain efficiency and prevent failures.

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