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 8486 reviews
Joan with Gem Plumbing and Heating was professional, knowledgeable, and did excellent work. He replaced our tankless water heater pump and explained everything very clearly. We really appreciate his expertise and would definitely recommend him!
The best ,very professional spent time and explained everything. Aaron was extremely nice and knowledgeable . The most important thing is he fixed the problem that another company didn’t. I am a true believer and signed up to be a. Member for on going maintenance.
I have been looking for a quality heating and plumbing company for some time. Gem is it.
Great timely service
Dave and Kyle are extremely knowledgeable on these water systems. Dave found the problem right off the bat. We are pleased that experienced people work for your company.
Dave is awesome! Knew exactly what to do and quick and efficient! Very nice guy! And Kyle is sweet! Hope to see them again! 5 plus starts from me! Thank you guys 💙
George was very professional, patient and knowledgeable. He arrived on time, explained what the issue was, and told me what needed to be done. I would definitely recommend Carmines for your repair needs.
Very fast install of 7-zone mini split system and required panel upgrade. From first call to work completion was less than a week. No quality issues of install and the workers were great. Overall GEM is very expensive, but quality and speed are fantastic.
Just completed AC tune up with Nick R. Courteous and knowledgeable service. Thorough and friendly. Arrived on time and explained his intent. Highly recommend!
Richard F. was the first Gem employee I met. My original appointment was to have the air conditioner yearly service (central air). After opening the side panel Richard showed me the black mold and rust inside the unit. NO ONE had ever opened the side panel during a yearly service appointment. There were years of built up black mold. I will NEVER use the companies I have used in the past. Richard presented 2 options. He was not pushy. He simply presented the information to me and answered all of my questions. Richard is respectful both professionally and personally. We scheduled the appointment for the following day (removal of the old unit and condenser and installation of the new.

The following day Richie and John arrived at 7:45AM. Leo then arrived. They worked from the time they arrived (7:45AM-5:00PM) until they completed the job. They are respectful both professionally and personally. They thoroughly explained all the work they did and gave me information that I did not know previously. Again, we get the a/c serviced yearly and no one had ever explained anything. They cleaned up after completing the work. I mean immaculately.
He came over on Easter Sunday and helped us with a big problem that could not wait. He explained everything in detail. He stayed until the problem was resolved. Really nice guy.
Tech was efficient, skilled, client focused and really nice
Very professional and nice. Answer our questions, highly recommended
Joe and Richard are extremely pleasant and professional. I was pleased that when I got the phone call saying that they would arrive in 45 minutes they were at my door in 45 minutes! We are very pleased that we called GEM Heating and Plumbing.
Solid squad, I was sad to hear Bill is retiring. Highly recommend GEM to anyone who has HVAC, plumbing, or electrical needs.
Services were very good. Technician was very polite, respectful and knowledgeable. I was very pleased.
Experts at there craft!! Clean everything as the when . I would recommend them to anyone
Very profesional and courtious and excelent workmenship
Very surprised and very pleased that I wasn’t charged for this visit since James determined that the problem should’ve been fixed the first time I called last month. Rather exceptional in these days and times many thanks.
Very good service . Friendly, polite men, did a great job fixing both toilets so everything is working well.
We are thrilled to write this review for our air conditioner service man. Michael is absolutely the best. He was friendly, professional and thorough. He took the time to explain what was going on with our system and made sure we understood what he was going to do. Michael is a definite positive addition to the GEM family.
Generator annual service- ran 4
days straight after the blizzard. Happy to get it tuned up and oil
changed. Thanks!
Richard was very knowledgeable
Very impressed Great personality
Explained everything in simple understanding
Installation workers are here now installing and I’m very impressed
Excellent job
Went over everything else
Great personalities
He was friendly, knowledgeable, and efficient. He provided good explanations and a better understanding of the workings of the generator.
The techs who replaced my furnace were very friendly and professional.

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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