Expert AC Installation Services in Quincy

Your commute to Boston takes 20 minutes. Your home should feel just as convenient when summer heat arrives.

You balance city access with community living every day. When your air conditioning fails to deliver, that balance breaks down. You’re left uncomfortable in your own space while temperatures climb and humidity settles in. At GEM Plumbing & Heating Services, LLC, we help Quincy homeowners get back to comfortable living.

Since 1949, we’ve been the trusted HVAC team that Massachusetts families call when their cooling systems need replacement. We match you with the right air conditioning system for your property and lifestyle, then install it with the care and precision that ensures lasting performance. You get reliable comfort without the stress of dealing with an unreliable contractor.

Don’t let another summer slip by with inadequate cooling. Contact us today about air conditioning installation in Quincy.

(833) 222-2953

GEM Technicial Inside Van


(833) 222-2953

We’re Right in the Neighborhood!

GEM operates throughout Quincy, serving homeowners in every neighborhood from North Quincy to Quincy Point.

You’ve likely seen our service vehicles around Massachusetts’ third-largest city, helping residents stay comfortable through every season. We understand the cooling needs of Quincy’s diverse housing, from historic Colonials in Merrymount to waterfront properties in Squantum and modern condominiums throughout the city. When you choose GEM for air conditioning installation in Quincy, you’re working with a team that knows the area and delivers reliable service when you need it.


Skilled employees

Trucks on the Road

Years in Business

Emergency Service


Our AC Installation Process

Getting a new air conditioning system installed should be simple and stress-free. GEM manages every detail from consultation through final testing, keeping the entire process clear and efficient for Quincy homeowners.

Book online or call at your convenience. Our extensive fleet allows us to offer same-day or next-day availability.

Our technician visits your Quincy home, assesses your cooling requirements, and provides clear, upfront pricing with no hidden fees or surprises.

Your NATE-certified technician installs your air conditioning system with exceptional care. You don’t need to worry about any of the details.

We test everything thoroughly before leaving, ensuring your new system operates perfectly. You’re ready for comfortable summer weather ahead.

Female Gem Plumbing u0026 Heating employee sitting at a desk smiling

(833) 222-2953


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

GEM technician portrait in front of GEM service truck

(833) 222-2953

Warning Signs You Need a New AC System

Recognizing when your air conditioner needs replacement helps you avoid uncomfortable breakdowns during Quincy’s warmest weather.

Pay attention to these indicators that it’s time to consider a new air conditioning installation.

When your system operates nonstop but can’t maintain comfortable temperatures, something has gone wrong. This pattern wastes energy, drives up utility costs, and leaves you uncomfortable in your own home. Quincy’s waterfront humidity makes cooling challenges worse for struggling systems. A new AC installation designed for these conditions becomes the most practical solution for your property.

A gentle hum when your system starts is normal. Loud grinding, persistent banging, or high-pitched squealing indicates mechanical problems that typically worsen with each cooling cycle. These noises usually mean worn components or mounting stress within your system. Replacing it with a newer, quieter model makes clear sense when sounds become disruptive.

Air conditioners generally function well for 12 to 15 years before efficiency naturally declines. Beyond this age range, systems lose both cooling capacity and energy efficiency even with regular maintenance. Contemporary technology delivers superior cooling while using less power. Replacing an older unit not only improves comfort but also provides the reliability of new, warranty-backed equipment.

Excessive moisture around your AC unit or musty odors when the system runs signal serious problems. These issues often indicate drainage failures or refrigerant leaks that compromise both performance and air quality. If your system produces these warning signs, replacement typically makes more sense than attempting repairs on aging equipment.

We Install All Types of Air Conditioners in Quincy

Every Quincy property has unique cooling needs, and GEM offers energy-efficient systems to match.

No matter which solution works best for your space, you’ll get expert guidance, professional installation in Quincy, and dependable performance from Massachusetts’ most trusted HVAC company.

Central air systems provide whole-home comfort, keeping every room evenly cool throughout summer. GEM installs high-efficiency central air conditioning in Quincy that integrates with your existing ductwork, delivering quiet operation, lower energy costs, and consistent cooling. These systems are ideal for single-family homes throughout Quincy and provide reliable comfort in every corner of your living space.

Heat pumps offer both heating and cooling from one efficient system, making them perfect for Massachusetts’ changing seasons. They move heat instead of creating it, providing year-round comfort while significantly reducing energy consumption. As a Mass Save® Heat Pump Installer, GEM helps you access rebates and incentives when you upgrade to heat pump installation in Quincy, making this advanced technology more accessible.

For properties without existing ductwork or rooms needing individual control, ductless mini-splits deliver flexible, efficient cooling. These sleek units let you manage temperatures room by room, putting comfort exactly where you need it. They’re perfect for Quincy’s condominiums, historic properties, additions, or converted spaces where running new ducts isn’t feasible.

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

For over 75 years, GEM has been the team Massachusetts families trust for reliable comfort and professional service.

When summer heat arrives in Quincy, your home should be your comfortable escape. We’re proud to help residents throughout every neighborhood with all of their air conditioning installation needs.

We’ve served Quincy and surrounding communities for generations, always treating customers with respect and care. GEM combines decades of expertise with modern equipment to deliver AC installations that stand the test of time.

With one of New England’s largest service fleets, we’re always close by when you need us. GEM provides same-day service and efficient air conditioning installation in Quincy to ensure your home stays comfortable without unnecessary waiting.

We’re more than just an air conditioning company. From plumbing and electrical services to comprehensive HVAC maintenance, GEM offers complete solutions to keep every system in your home functioning properly.

Our NATE-certified professionals bring the highest level of training and care to every job. We treat your property with respect, prioritize your safety and comfort, and ensure every installation meets exacting standards for performance and reliability.

As a Mass Save® Heat Pump Installer, Carrier Factory Authorized Dealer, and National Grid Value Plus Installer, GEM helps you access valuable rebates and incentives when installing energy-efficient cooling systems. We simplify the savings process while upgrading your comfort.

Our Home Comfort Club maintains your AC in peak condition through regular inspections, tune-ups, and exclusive member benefits. It’s the simplest way to protect your investment and ensure reliable comfort throughout every season.

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 every 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 Quincy

Make summer comfort a priority for your Quincy home.

GEM’s licensed HVAC team stands ready to install the perfect air conditioning system in Quincy. With same-day availability, flexible financing, and 75+ years of trusted local service, we make it easy to reduce energy costs and enjoy lasting comfort all summer long. Contact us by phone or online now to schedule your consultation!

GEM technician in front of service truck


Other HVAC Services You May Need


Air Conditioner Installation FAQs

How long does an air conditioning installation take?

Most standard installations can be completed in one day. More complex projects, such as adding ductwork or installing multiple systems, may take longer. GEM’s team works efficiently and keeps you informed throughout the process.

What’s the best type of air conditioner for Quincy homes?

The best system depends on your property’s size, layout, and energy goals. Quincy’s diverse housing stock means different properties have different needs. A GEM technician can help you choose between central air, heat pumps, or ductless mini-splits to find the right fit for your space.

Can GEM install air conditioning in older Quincy properties?

Yes. Many of Quincy’s historic homes and converted properties don’t have existing ductwork, making ductless mini-splits or high-velocity systems excellent options. GEM specializes in finding modern solutions that work with your property’s character while delivering reliable cooling.

How soon can I schedule my AC installation in Quincy?

With our 500-truck fleet and local Massachusetts team, GEM often provides same-day or next-day installation. Call our customer care team or book online to schedule your free estimate and get comfortable fast.

Are rebates available for AC systems in Quincy?

Yes! GEM participates in programs through National Grid and Mass Save® to help you access rebates and special financing for high-efficiency air conditioners and heat pumps. Our team helps you apply and maximize your savings.

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