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(833) 222-2953

24/7 Emergency Service

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24/7 Emergency Service

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October Is Breast Cancer Awareness Month

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

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 9522 reviews
review us on
Matt Brown
12 hours ago
Dory did great work!
RJ
12 hours ago
Joe and Diego were wonderful!!! Knew exactly what they were doing!!! And they both put me at ease right away! Give them both a raise pls.
Edgar Mendez
14 hours ago
Everything is good 100×100 perfect
Bethany Bomar
18 hours ago
Thank you so very much. Cleaned up the things previous service people did not bother with, climbed up into my waycup attic to service that unit also…and you left everything orderly and shiny. Yay GEM guys!
Frank Andrade
1 day ago
Outstanding all the way around. Knowledgeable, honest, and personable. Made a $20,000 bill feel much better.
Sarah A Mannix
1 day ago
Joie and Cristian were awesome to work with. They worked on getting my mini split system ready for winter. They were both experienced, efficient, answered all my questions and were just great to speak with.
Dale Easton
1 day ago
Joseph was very professional, courteous, and knowledgeable. He was also pleasant in our discussion of my heating issues.
Rebecca Boff
1 day ago
Fantastic work fixing my toilet and working with myself and the condo association as the water needed to be turned off to several buildings. Professional, friendly and efficient! Jon and Ethan were great! Easy financing options were available, couldn't have gone better, thank you so much!
Howard Spielman
1 day ago
On time cordial and efficient
Mark Harnois
1 day ago
Tony’s the best!
Hazel Mclaughlin
1 day ago
Explained everything in detail. They were excellent in explaining and showing us how it works. Thank you
Mikhail Gorbounov
1 day ago
Very helpful!!!
Jordan Warnick
1 day ago
Brody and his partner repaired our furnace outage in less than 10 minutes.
CG
1 day ago
Aiden did an excellent job of getting my generator up and running and explaining the system to me Friendly and professional service
Paula-Jean Therrien
1 day ago
Furnace annual inspection.
Dawn Williams
2 days ago
Marcello and his coworker were here within an hour of calling for and urgent issue. They were professional and courteous. Took time to explained the work and cost expectation. And fixed the issue within 45 minutes. So thankful for their help.
Bill Wiech
2 days ago
2 Pro electricians came out it was an emergency within 4 hours throughout my house the phenomenal job respectful Everything went perfect a little pricey but when it's an emergency it's an emergency highly recommend g e m electrical
Lisa
2 days ago
We always call GEM first! Easy appointments. Walter and Anthony were so nice and helpful! Thanks!
christina littlefield
2 days ago
Gem is always reliable. Technician was very knowledgeable, really understood steam system, burner components and was a good communicator, able to answer all my questions and give guidance on aspects of water levels and valve settings.
Ashley Trainor
2 days ago
Tony from GEM was amazing! He came to our home and diagnosed the issue, picked up the part, and had hot water to our home within a short period of time! He’s professorial and intelligent! Highly recommend!
Donna “JrsNonna” Birs
2 days ago
Omar and the guys were very professional. They did a great job installing the mini-split. They were very informative. They showed me how to run the cold air and the heat. Omar put down cloths on my floor to protect them, I was thankful for that. I will definitely refer Gem if any of my friends are interested in a mini-split or mini-split.
Pat Swift Fulton
2 days ago
GEM's arrived on time, checked the HVAC and made recommendations. The gentlemen were neat, clean and polite.
Heather Brennan
2 days ago
Brody was amazing and helped get the system up and running.
E. H.
2 days ago
They were on time, very quick, very polite and provided a link to something that I can purchase on my own to save money.
Peter Morritt
2 days ago
We had a oil furnace and oil tank installed. They took great care of our home and went above and beyond my expectations. They made a very stressful situation something easy to deal with from the communication to sales to install. I thought at first the price was a little high but for the level of professionalism I received it was worth it.

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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Service plan starting at

$49.99 /mo

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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.

Other Services You May Need

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Plumbing

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Water Heater Repair

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Emergency Plumbing

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.