October Is Breast Cancer Awareness Month

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

Expert AC Installation Services in Boston

The Boston summers can take quite a toll on the comfort of your home.

With summer temperatures regularly reaching the high 80s and 90s, staying cool inside can be a real challenge. You need an air conditioner that’s up to the task. That’s where professional air conditioning installation makes the difference.

At GEM Plumbing & Heating Services, LLC, we help homeowners across Boston stay cool and comfortable in their homes with expert AC installation services. Our licensed technicians take the time to assess your home’s layout, cooling needs, and energy goals to recommend the best system for your space. We handle every step of the installation process with precision and care, ensuring your new air conditioner runs efficiently and reliably from day one.

With GEM, you can count on professional service, honest communication, and long-lasting comfort all summer long.

(833) 222-2953

GEM Technicial Inside Van


(833) 222-2953

We’re Right in the Neighborhood!

At GEM, we work right where we live! We’re local to the Boston and broader Massachusetts area ourselves, and we take pride in helping our neighbors stay comfortable year-round.

From the coldest winter nights to the hottest summer days, our Boston AC installation team is always nearby and ready to help with fast, friendly, and professional service.

When you choose GEM, you’re choosing local experts who understand Boston homes, care about the community, and are committed to keeping your home safe, efficient, and comfortable in every season.


Skilled employees

Trucks on the Road

Years in Business

Emergency Service


Our AC Installation Process

There’s enough stress that comes with AC issues without having to worry about the installation process itself. That’s why GEM makes getting a new air conditioning system installed in Boston simple, transparent, and stress-free from start to finish.

Pick a time that works for you. We’ll answer your questions and confirm the details.

Your new air conditioning system is installed with care and precision. You don’t lift a finger.

Once you give the go-ahead, we complete the job efficiently and with the highest attention to safety and quality. You’ll have peace of mind knowing your Boston home’s electrical system is reliable, up to code, and built to serve you for years to come.

We test everything before we leave, and you’re set for a comfortable summer.

Female Gem Plumbing & Heating employee sitting at a desk smiling

(833) 222-2953


What Our Customers Are Saying

100% Satisfaction Guarantee

4.6
Based on 9518 reviews
Steven sogoloff
11 hours ago
We did a maintenance request for our heating system. Christian and Joie were very pleasant and gave us the results based on their analysis of the system. They arrived within the time frame and completed the process in about 30 minutes.
Joanne Iachetta
11 hours ago
Showed up when expected. So kind and courteous and explained everything to me that would need to be done for my plumbing issue. Would highly recommend GEM.
Vin Milano
15 hours ago
Erickson was great! Explained conditions of units and recommendations for upkeep!
Doug Williams
1 day ago
The service was good.Aiden was very good. It’s just they said they were on there way 2hrs and30 min they finally arrived. Waited all afternoon
The 2 service men were on time, assessed the problem, diagnosed the issue, came up with a plan and offered several solutions for fixing our mini split. They took pictures, tried clearing out mice debris , attempted to get the outside machine to work ( apex 2 hours) Alas a no go, so we decided to scrap it and go with baseboard heater for the room over the garage. Up front information and pricing , no nonsense. Affable techs and so far great service.
Doug Dustin
2 days ago
I would recommend Nathan and GEM in the event of a plumbing emergency and or issue
David Polishook
2 days ago
No repair was performed at this time I had to pay a diagnostic fee.
Eaven though I was very specific what toilet I wanted they put the wrong one in.
Kristen Mouris
2 days ago
Absolutely incredible and fast service from Nicole T! Our upstairs toilet began leaking Saturday night and by noon on Monday we had a new toilet! Nicole was super informative and walked us through our different options every step of the way. She made an otherwise stressful situation so much easier!
Robert Mason
2 days ago
I had a great experience with Gem Plumbing and Heating. It was great starting from the initial phone conversation and continued with Brian Ciaschini. Brian was an excellent electrician, he was cordial, informative and helpful. Brian made sure everything was working perfectly! I would recommend them and I will use them again.
Friendly, efficient working time, knowledgable!
keith farnham
2 days ago
Excellent as always
Alex Fagundes
3 days ago
Exceptional service! Knowledgeable, and they left with giving me a lot of insight on boilers and options we had. They left and we felt much better.
Joanne Bennett
5 days ago
Exceptional service from GEM. Douglass is absolutely the best !!! … will use them again. Thank You!
buddy croce
5 days ago
Workers were polite and knowledgeable. They diagnosed the problem right away. And we're able to repair it same day.
Steven Pichette
6 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
6 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
6 days ago
Christopher was efficient and courteous and completed my boiler and split unit heat annual maintenance quickly. Highly recommended!
Maureen Walsh
6 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
6 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
6 days ago
Seemed very knowledgeable and very informative. Friendly service as well.
Jim Harrod
6 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
6 days ago
Professional, informative, and reliable!
Malek Askar
1 week 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
1 week ago
Erickson was great. Efficient, friendly and through. Very professional

GEM technician portrait in front of GEM service truck

(833) 222-2953

How to Know When You Need a New Air Conditioner Installed

Understanding the signs to install a new AC system before it breaks down can save you from serious frustration and discomfort during the hottest days of the year.

Here’s when we recommend considering a new AC installation.

You have an ideal temperature you’ve set on your thermostat, and your cooling system should be able to reach and maintain it consistently throughout your home. When certain rooms feel warmer than others or your system runs nonstop without keeping up, it’s a clear sign your air conditioner may be losing efficiency.

Over time, this can lead to higher energy bills and reduced comfort, making a new AC installation the best long-term solution for your home.

When your system turns on and begins a new cycle, you may hear your air conditioner turn on and produce a gentle hum; that’s normal and doesn’t signal issues. When you start noticing loud bangs, rattles, or grinding sounds, though, it’s often a sign that something isn’t working as it should.

Unusual noises can point to wear and strain within the system, which may worsen over time. If your AC is getting noisier with each cycle, it’s likely time to consider replacing it with a newer, quieter, and more efficient model.

Energy bills typically climb as system efficiency drops. This can happen over time due to wear and tear or system aging. Your technician should inspect your system and determine the cause and extent of the issue.

New air conditioning systems are designed to operate far more efficiently, using less energy to deliver better cooling performance. Upgrading your AC can significantly lower monthly utility bills while providing more consistent comfort and peace of mind for years to come.

Air conditioners typically have lifespans of around 15-20 years. As they age, they naturally become less effective and efficient. If your air conditioning unit is beyond 20 years of age, having it replaced with a newer model can save you money on both energy and repair costs in the long run.

Modern systems are built with advanced technology that improves cooling performance while using less power. Replacing an outdated unit not only enhances comfort and efficiency but also gives you the reliability and peace of mind that comes with a brand-new, warranty-backed system.

We Install All Types of Air Conditioners in Boston

GEM is here to help your home stay at the right temperature all summer long, no matter what type of system you count on to do so.

Here’s a look at the types of air conditioners we install:

The most common type of cooling system in Boston, central air conditioners are extremely reliable and effective. No matter how high the outdoor temperatures climb, central AC systems deliver consistent, even cooling throughout your entire home. They’re designed to maintain comfort across every room while keeping humidity levels in check.

GEM installs and services high-quality central air systems that are energy-efficient, durable, and tailored to your home’s layout.

Installing a heat pump is an energy-efficient way to keep your home cool during Boston’s hot summer months. Instead of generating cold air, they move heat from inside your home to the outdoors, maintaining a comfortable indoor temperature with less energy use.

The AC technicians at GEM can install modern heat pump systems designed to provide reliable, consistent cooling while keeping energy costs low.

Ductless mini-splits offer flexible, efficient cooling without the need for traditional ductwork. They’re perfect for individual rooms, additions, or homes where installing ducts isn’t practical, delivering precise temperature control wherever you need it.

GEM provides expert ductless mini-split installation and service, helping Boston homeowners enjoy targeted comfort and quiet, efficient cooling throughout the summer.

GEM: Proud to be Boston’s Trusted AC Installation Company Since 1949

At GEM, we understand that a cool home isn’t just about comfort; on the summer’s hottest days, it’s about safety.

Boston’s summers are hot, and your home should be your cool escape to help you beat the heat. We’re proud to help Boston residents with all of their home’s AC installation needs.

With decades of service across Massachusetts, GEM has earned a reputation for excellence and reliability. Our HVAC team combines proven expertise with modern technology to deliver AC installations that stand the test of time.

When the summer heat hits, you don’t have time to wait. GEM provides prompt service and efficient AC installation in Boston to ensure your home stays cool and comfortable without delay.

We’re more than an air conditioning company; we’re your partner in total home comfort. From plumbing and electrical work to HVAC maintenance, GEM offers comprehensive services to keep every system in your home running smoothly.

Our licensed professionals treat every home with respect and care, prioritizing your comfort and peace of mind. We take the time to ensure every installation is safe, precise, and built for long-term performance.

As a Mass Save® partner, Carrier Factory Authorized Dealer, and National Grid Value Plus Installer, GEM helps you take advantage of valuable rebates and incentives when installing energy-efficient cooling systems. We make it simple to save money while upgrading your home’s comfort.

Our Home Comfort Club keeps your AC in top condition through regular inspections, tune-ups, and exclusive member benefits. It’s the easiest way to protect your investment and maintain reliable comfort year after year.

Smart thermostat installation by GEM HVAC technician

(833) 222-2953


customer and technician interaction

Our GEM Family Cares for Your System’s Entire Life

Your air conditioner works hard through every Boston summer. Regular maintenance keeps it running efficiently, quietly, and reliably for years to come.

Our Home Comfort Club makes maintenance easy with annual tune-ups, priority scheduling, and discounts on repairs. We catch problems before they become emergencies and keep your system running the way it should, year after year.


Contact GEM for New Air Conditioner Installation Services in Boston

Stay cool for many summers to come with help from GEM! Our team offers reliable, professional AC installation services in Boston, MA, and the surrounding areas.

We’re here to help with all of your cooling needs, and we’re proud to provide solutions our community can depend on. Give us a call or contact us online today to get started!

Call GEM at (833) 222-2953 to schedule your ac install today. 

GEM technician in front of service truck


Other HVAC Services You May Need


Frequently Asked Questions

How long does it take to install an AC in Boston?

Most air conditioning installations take one full day to complete, depending on the type of system and your home’s setup. Larger or more complex projects may take slightly longer to ensure everything is installed correctly and safely.

How often should I service my new AC?

It’s best to have your air conditioner serviced once a year, ideally before the cooling season begins. Regular maintenance keeps it running efficiently and helps prevent unexpected breakdowns.

How long does a air conditioning installation take?

In most cases, a AC installation can be completed in one day. GEM’s licensed team arrives on time, handles the entire process safely, and makes sure your new system is fully tested before we leave.

What is the best type of air conditioner?

The best air conditioner depends on your home’s layout, size, and energy goals. A GEM technician can help Boston homeowners choose between central air, heat pumps, or ductless mini-splits to find the right fit for your needs.

What should I look for in an AC installation company?

Look for licensed, insured technicians with a strong local reputation and transparent pricing. Experience, reliability, and clear communication are key to ensuring your installation is done right the first time.

What size air conditioner do I need?

The correct AC size depends on your home’s square footage, insulation, and layout. GEM’s professionals perform a detailed load calculation to ensure your system is perfectly sized for maximum comfort and efficiency.

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