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 8761 reviews
The technician arrived. He came in and diagnosed the problem with my ductless system. He was able to get my system functioning, even though he didn’t have the pot needed to be replaced so temporarily we can run the system as it is he did he did his job by diagnosing the issue and doing a temporary fix?
I called GEM for a weekend, short notice pipe repair, and everyone was great from Hendry who I spoke to on the phone, to the two technicians Alec and Danny. They worked quickly, communicated clearly, and worked with me to come up with a solution I was happy with the price and result of. I would definitely call them in the future when things pop up.
Can’t say enough good things about Gem Plumbing and Thomas in particular. I easily got a came day appointment, Thomas the tech was here in the agreed upon window, provided 2 alternative estimates and once we selected, he completed the job right away – no need to make another appointment and come back another day. Great work, and even better service!
Chris A diagnosed my tankless water heater problem and repaired it quickly and efficiently. He answered all my questions with clear answers and was very helpful in alleviating any of my concerns. He gave excellent service!
Fast and knowledgeable service technicians.
William and Mark were excellent! They explained everything that they were doing and included us through the whole process. Would recommend them highly.
Very prompt and professional service!
The service provided by Mark and his partner was incredible. They took the time to explain all details of the situation and even helped make a call to a remediation company. They cleaned up after themselves and were very easy to discuss the repair process with.
Always a pleasure, professional expert service. Solving any problem simple or difficult!
Came even late at night to make sure we had working air conditioning
The team that installed the unit (Luis Herrera Mezquita Et al) was very professional and explained things thoroughly. I would highly recommend them.
Great customer service and understanding with us, and answered all our questions.
Knowledgeable technician attended to services thoroughly and had answers to all questions. Also helped with moving some furniture to ensure he could have enough working space. Very well done!
Fast service, clean work and AWESOME service guys!!!
My toilet stopped working this morning. I called Gem Plumbing at around 12:30pm and with an hour or so Nicole Tradd Technician was at my door. She did a fabulous job removing and replacing my toilet. She was very pleasant and friendly from start to finish! Great customer service all around!
Ricky from GEM was awesome. Second time he has taken care of something for us over the years !!!
Outstanding service!
Anthony was exceptional. He explained everything to me prior to repair. Repaired everything carefully and neatly done. Cleaned everything when done. GREAT JOB!!
Very thorough, efficient and courteous! Chris was extremely professional in completing my AC system maintenance. Thank you for a great job!
. GEM came for heat pump ac semi annual maintenance
As always very pleased to have GEM for all of my plumbing and electrical needs!
Thank you GEM
Was very impressed with Gems
Tech who was able to repair our AC units during our first real heat wave.
Hope to do business with Gem at our new home soon
Thomas from GEM came out today for my annual air-conditioning service, and I couldn’t be more impressed. He performed a thorough inspection, topped off all the necessary fluids, checked and adjusted my filters, and made sure everything was running smoothly and efficiently.

What really went above and beyond was that he noticed a hornets’ nest growing next to my air-conditioning unit and took care of it for me on the spot. That was something I hadn’t even realized needed attention, and it saved me from a potentially unpleasant surprise later on!

Thomas was professional, knowledgeable, and incredibly helpful throughout the entire visit. It’s rare to find someone who pays such close attention to the details and takes such pride in their work. GEM is fortunate to have him on their team. Thank you, Thomas, for the outstanding service!
Technicians were highly qualified. Very knowledgeable and professional. Respectful towards me and my home. Completed installation with in timeframe and cleaned up the areas they worked in. My issue is with whoever issued the system’s equipment. After 6 hours of working the technicians discovered they had been given the wrong system until! Resulting in them having to return for another 6 hour work day! This resulted in an additional day of inconvenience for myself and my family. No one from the Gem administration/management team has contacted me to apologize or offer reconciliation. I am happy with the product and the performance of the technical staff. But not with the treatment from management.
We had a tree branch fall and take out all of our electric equipment. GEM answered immediately and got someone out quickly. Mike Alberto got the job done quickly and explained everything as he went along. Great job!
I would recommend Corey Mayo for his expertise and would love to take his service again when needed

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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