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24/7 Emergency Service

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Waltham, MA Water Heater Replacement

Whether you need emergency replacement or planning an upgrade, GEM can help!

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Professional Water Heater Replacement Services

When your water heater is finished, you know it. Now you need a team that can handle the replacement quickly and correctly.

At GEM Plumbing & Heating Services, LLC, we provide professional water heater replacement services in Waltham. Whether your system has stopped working or it’s clearly at the end of its useful life, our licensed plumbers will help you choose the right replacement and get it installed properly. Give us a call today for water heater replacement services in Waltham.

(833) 222-2953

We Serve the Waltham Area

When you’ve decided to replace, you want a company that gets the job done without unnecessary delays.

Our local technicians treat every home as if it were their own. With a large team and stocked trucks serving the Greater Boston area, GEM has the capacity to complete your replacement efficiently. You’ve put up with a failing water heater long enough.

75

Years in Business

700

Skilled employees

24/7

Emergency Service

500

Trucks on the Road

(833) 222-2953

Same-Day Water Heater Replacement Services

Once you know it’s time, there’s no point in waiting.

Every day with a dying water heater brings you closer to a morning without hot water at all. GEM offers same-day replacement services in Waltham, getting your new system installed before your old one quits entirely. Our technicians arrive on schedule, confirm the plan, and complete the installation the same day.

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GEM Makes the Water Heater Replacement Process Easy

You’ve already figured out that replacement is necessary. Let GEM take care of the rest.

GEM handles every step so you can move on.

You’ve made the decision, so let’s get it scheduled. Book online or call to set up an appointment. Our Waltham-area technicians often have same-day availability.

Our team reviews your current setup and identifies the best replacement options for your household. Since you already know you need a new unit, we focus on matching you with the right system.

Once you approve the plan, our licensed plumbers handle everything. We remove your old system, install the new one, and verify every connection is safe and meets code.

We confirm your new water heater operates correctly before we leave. We’ll show you how the system works and cover maintenance basics.

(833) 222-2953

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(833) 222-2953

Here’s Why You Should Replace Your Water Heater

You already know your water heater needs replacing. Here’s what you gain by moving forward.

Your old unit has been wasting energy. New water heaters use less fuel or electricity to produce the same hot water, meaning lower bills starting immediately.

No more wondering if today is the day it finally quits. A new system delivers consistent hot water whenever your household needs it.

You’ve likely already spent money trying to extend its life. A new water heater ends those recurring repair expenses.

A modern, efficient water heater adds to your home’s value. Buyers appreciate systems that won’t need replacement anytime soon.

Don’t Trust Your Home & Family to Just Anyone.

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Why Waltham Residents Choose GEM for Water Heater Replacements

When you’ve decided it’s time for a new water heater, you want the work done right without runaround.

You don’t want to wait on parts or deal with unclear pricing. GEM delivers straightforward service with costs you understand before work begins.

Our plumbers serve Waltham and Middlesex County regularly. From the neighborhoods near Moody Street and the downtown area to the residential sections of Warrendale, South Waltham, and along the Charles River, we understand the plumbing systems in this city and treat each job with the attention we’d want at our own homes.

GEM has served the Greater Boston area since 1949. Seventy-five years of water heater replacements means we’ve handled every situation and can resolve yours efficiently.

GEM provides plumbing, HVAC, and electrical services. One company for your home’s major systems means one call when you need something done.

Our team size and inventory allow us to offer same-day water heater replacement across Waltham when needed.

You know what you need. We tell you what it costs upfront, with no surprises after the work is complete.

Your new water heater may qualify for Mass Save rebates. GEM helps you capture those savings and offers financing if you want to spread out the cost.

We install reliable water heaters from manufacturers we trust. Your new system will work correctly from day one.

What Our Customers Are Saying

100% Satisfaction Guarantee

4.6
Based on 8519 reviews
review us on
lynn curran
Jonathan was very neat and helpful with my emergency plumbing needs
Stephen White
GEM workers well qualified, friendly and extremely helpful. Installed two new units in one day – efficient and excellent work.
Craig Dumont
Honest and fair. Work was clean and well communicated. Response to issue was 24 hours. The three techs…Anthony, Brody, and Nick, were polite quiet clean work and communicated step by step… job well done.
Joanne Acosta
Paul V from Carmine’s, arrived promptly and was very professional, knowledgeable, patient and has a great demeanor. He changed the control board of my HAVAC unit, and gave me great suggestions of the usage of it. Paul is very sincere and you can see his dedication to his work. I would definitely recommend Carmines and Paul V for any of your HAVAC needs.
Farrel Klein
Friendly, explained what was being done and what to watch out for.
JH
Great job by David
michelle pearce
Victor is the best. He fixed our clogged pipes and came out right away
Chris Faux
Great service ! They were on time, respectful and took care of business quickly and efficiently
Claude Correia
Lost our well water tank, great job with replacement. While here had them replace kitchen faucet and garbage disposal also. Will use GEM from now on!
Odette England
Eric and Steve are great. Got the job done fast. Cleaned up. Terrific work.
tracy bagley
We had 2 very old direct vent gas wall heaters replaced. Evan and Steve are the best. They explained everything and did a awesome job for never putting in these Rianni heaters . Kept me informed and answered all my questions and eased my concerns . Couldn't of asked for two better guys. The electrician and his assistant were outstanding with the fact the house was
built in 1925 with older wiring . Chen and his assistant installed 2 dedicated circuit for both heaters to run on and it works out great as now my air conditioner will run on the dedicated circuit this summer. Would recommend all of them for future heating needs .
We had the bathroom one downsized to a smaller unit with no issue what so ever even with them having to remove the bigger one they had put in they were happy to accommodate the issue
Ana Sousa
They are sweet, knowledgeable and quick. Thank you guys for an excellent job done, I appreciate it.
Rusty Mershon
The gem guys could not have been any nicer. We had to leave and trusted them in our home alone.
D S
Very professional and thorough. Serviced not only my mini-split but my air conditioner and checked my furnace and changed it's filter. Very happy.
Elaine Mary
The folks at Carmine's/GEM always do a great job👍 Anthony Pena did a great job checking the gas dryer connection and valve. Made sure everything was working properly and that there were no leaks.
Mark Sutherland
Joan Martinez came to my house on an emergency call when my furnace/boiler broke down at 1 am. He diagnosed the issues and unfortunately I needed a new system. GEM installed the new system over the next two days. Everyone on the crew was excellent. I signed up for GEM’s maintenance program because if I had previously it would have prolonged the life of my furnace/boiler. Today Joan Martinez returned to do routine maintenance on my mini splits. He was very thorough and made sure the units are ready for the summer season. I highly recommend and trust Joan Martinez for any job.
Eve Healy
Brody you were terrific! So knowledgeable. Appreciate that he showed what might be needed in the future. Thanks Gem Plumbing for sending him. Thanks for coming out Steve and servicing air conditioning and cleaning splits replacing filters as well as making sure it all works. I appreciate the prompt and friendly service. Sincerely I've
Suzanne Morand
Anthony did a great job. He was very professional, friendly, and explained to us what he found and what was needed. Excellent service! Thank you!
Joanne Stafford
Services were very good. Technician was very polite, respectful and knowledgeable. I was very pleased.
Nancy Friese
Thoughtful and shared every step.
kimberly
David was friendly and knowledgeable.
John
Very good experience. Quality work, and professional.
Kaity & Andrew Shemick
David was very thorough and patient. He was determined to get us a resolution and even ensured he taught us on best practices and troubleshooting techniques.
Stayshia Barreno
Although, we had to drop a lot of money today. We are very appreciative of David Santiago and Colin D. David explained everything that was wrong with our system. Even tried to find a way to fix the disaster. Even though we both knew, it wasn't worth it. That's where Colin come in and broke the heart breaking news but helped us find options and worked with us. With that we are VERY thankful for you both! GEM has a life long customer. Thanks guys.
Randy Spencer
Alex did a great job and most importantly, gained the confidence of my wife. Not an insignificant accomplishment in the middle of major repairs that required shutting off water and not flushing toilets, etc. Thanks Alex!

Keep Your New Water Heater in Top Shape with Routine Maintenance

You’re investing in a new system. Protect that investment with regular maintenance.

Sediment builds up, parts wear, and small issues become larger problems without attention. GEM offers professional maintenance services to keep your new water heater running efficiently for years. Call GEM today to learn more.

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We’re Here to Help!

Quality, Friendly Service in Southern New England

(833) 222-2953

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Choose GEM for Water Heater Replacement Services in Waltham

You’ve made the decision. Now let’s get it done.

GEM has served Waltham homeowners for decades. We’re ready to get your new water heater installed quickly and correctly. Give us a call or contact us online today.

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Water Heater Replacement FAQs

How quickly can GEM install my new water heater?

Most replacements are completed in two to four hours. Since you already know you need a new unit, we can often schedule same-day installation. Tankless systems may require additional time if modifications are needed.

Should I choose a tank or tankless water heater?

It depends on your household’s usage, available space, and budget. Tank water heaters cost less upfront and work well for most homes. Tankless models cost more initially but provide endless hot water and last longer. GEM’s plumbers can help you decide what makes sense for your Waltham home.

What rebates are available through Mass Save?

Mass Save offers rebates on qualifying high-efficiency water heaters, including heat pump models. GEM helps Waltham homeowners identify which models qualify and assists with the rebate paperwork.

Does GEM handle removal of my old water heater?

Yes. We disconnect and remove your old unit as part of every replacement. You don’t have to worry about disposal.