October Is Breast Cancer Awareness Month

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

Restore Hot Water to Your Waltham Home

When hot water disappears, everything becomes harder. Freezing showers. Greasy dishes. Laundry piling up. You need a plumber who diagnoses accurately and repairs correctly.

GEM Plumbing & Heating Services, LLC’s licensed, local technicians deliver expert water heater repair in Waltham, MA, restoring comfort with same-day response, honest pricing, and skilled workmanship. Whether your unit is dripping, rumbling, or failing to heat, we’ll identify the issue and restore hot water safely and efficiently.

(833) 222-2953


24/7 Emergency Water Heater Repair in Waltham

Water heater emergencies strike without notice. A 3 a.m. flood or holiday breakdown demands immediate attention.

GEM provides true 24/7 emergency water heater repair in Waltham for urgent situations. Leaking tanks, total hot water loss, or gas odors require fast action. Our emergency team works nights, weekends, and holidays with fully equipped trucks. Call GEM any time for emergency water heater service in Waltham.

(833) 222-2953


Serving Waltham Homeowners Since 1949

GEM isn’t a faraway franchise. We’re a New England company serving local families for over 75 years.

Our technicians live in communities like Warrendale and South Side. We understand plumbing challenges Waltham homes face, from hard water damaging elements to aging equipment in older buildings. When you call GEM for water heater repair in Waltham, you get technicians who know this area and treat customers like neighbors.

Years in Business

Skilled employees

Emergency Service

Trucks on the Road

GEM technician working on indoor HVAC system with homeowner

(833) 222-2953

GEM’s Approach to Water Heater Repair

Getting your water heater fixed shouldn’t create additional anxiety.

When hot water fails, you need a predictable solution. At GEM, repairs are simple and straightforward. Here’s our process:

When you reach out, our team sends a Waltham-area plumber who arrives quickly. We inspect your tank, elements, thermostat, valves, and safety systems.

You receive a clear explanation of the problem and sensible options for repair or replacement.

From fixing leaks to replacing elements, most work finishes in a single visit.

Before leaving, we confirm your water heater runs safely and efficiently.

Indicators Your Water Heater Needs Service

Tank water heaters typically signal trouble before total failure. Catching these warnings early prevents bigger problems.

Contact GEM if you notice these symptoms.

A failing element causes water to deplete faster than usual or fail to heat properly. Waltham homes with multiple bathrooms notice this first.

Even minor leaks cause rust and damage if ignored. Many Waltham homes store water heaters where leaks go unnoticed until significant damage occurs.

Crackling, popping, or rumbling indicates sediment accumulation. Waltham’s water accelerates mineral buildup inside tanks, requiring regular service.

Discolored water signals internal corrosion or anode rod deterioration. Without attention, this leads to tank failure.

Water swinging between hot and cold indicates thermostat or element problems. This frequently affects older Waltham water heaters.

Waltham homeowners often see increased utility costs when water heaters struggle. Sediment, worn parts, or age force systems to overwork. Our technicians diagnose the cause and restore efficiency.

Customer and technician shaking hands on the front porch

(833) 222-2953

GEM Technician Explaining Plans to Customer

(833) 222-2953

GEM Is Waltham’s Dependable Plumbing Team

When your water heater breaks, you want assurance the repair will be done right. GEM delivers exactly that.

For over 75 years, Waltham homeowners have trusted GEM for honest, quality plumbing backed by local expertise. Our team treats every home with respect, arriving punctually, explaining clearly, and working safely.

With 500+ trucks and 700 employees, we often reach your Waltham home the same day you call.

You know the cost before work starts, and you always pay a fair rate.

Our Waltham plumbers hold full licensing and training to repair all tank water heater brands.

We arrive on schedule, protect your property, and clean up before leaving.

Book online anytime or call our local team for fast assistance.


What Our Customers Are Saying

100% Satisfaction Guarantee

4.6
Based on 9508 reviews
Joanne Bennett
8 hours ago
Exceptional service from GEM. Douglass is absolutely the best !!! … will use them again. Thank You!
buddy croce
9 hours ago
Workers were polite and knowledgeable. They diagnosed the problem right away. And we're able to repair it same day.
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
1 day 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
1 day ago
Christopher was efficient and courteous and completed my boiler and split unit heat annual maintenance quickly. Highly recommended!
Maureen Walsh
1 day 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
1 day 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
1 day ago
Seemed very knowledgeable and very informative. Friendly service as well.
Jim Harrod
1 day 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
1 day ago
Professional, informative, and reliable!
Malek Askar
2 days 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
2 days ago
Erickson was great. Efficient, friendly and through. Very professional
Dawn Riall
2 days ago
Ryan and his crew were excellent. They were very knowledgeable and took the time to explain things to me. They were helpful and looked for alternatives for my situation. Not looking to simply make a buck and drive up the bill. Even went out of their way to clear way the awful spiders and buckets of water. Would highly recommended Ryan and Gem. Thank you.
Perfect call: rapid diagnosis and plan for repair
Jillian Johnson
2 days ago
Responsive. Organized. Tracks warranties and sets up maintenance schedule.. Various experience levels for specific jobs. Quality work. Pricier but worthy.
Nelson did a great job
On time, friendly, professional and thorough testing and maintenance of old gas boiler and hot water heater, tested all radiators. Great communication about exact arrival time and throughout the process. GEM has well trained professionals. Excellent service as part of my maintenance contract.
Mary Maltezos
2 days ago
Both techs were very professional and answered any questions we had. Also showed us how ro replace humidifier filter when needed. Worked steadily, cleaned furnace and replaced parts requested.
Our service rep Rainey was very professional knowledgeable and described the work and process of how GEM works in an easy to understand way. This was our first time using gem and we had a great experience
AXS441 GM
2 days ago
9-30-26 Excellent! Extremely detailed and thorough. Explained all actions clearly, and very pleasant, and knowledgeable. Very impressed and hope to receive his services in the future. Thank you, A ———————- For Friday. Aug. 21, 2026 by John Excellent!! He checked all vents and 2 air handlers To track locations of Freon. Determined proper pressure levels and other settings were ok but not cooking. Very thorough and knowledgeable. Since performed all these checks, Can he return to finish his work!!! Thank you, Ayres Services were related to lg heat pump, Not items that follow… And price not determined not finished..
Alice Wood
2 days ago
Cane same day, very efficient and great helpful hints, very personable
Thanks to Nehemias and Partner for a great job routine maintaining of my hvac system!
Paul Allen
3 days ago
Great customer service
Heidi Gobeille
3 days ago
Colin was so helpful and efficient. Highly recommend
Cp School
3 days ago
Courteous, knowledgeable and prompt service!


What Working With GEM Looks Like

From Warrendale to Waltham Center, homeowners trust GEM because we make water heater repair straightforward.

Calling an unfamiliar plumber can feel uncertain. GEM eliminates that concern with transparent service throughout.

Every technician entering your Waltham home has cleared thorough background checks and maintains current certifications.

Our plumbers describe problems, show issues when possible, and answer questions before beginning work.

We offer appointment windows that accommodate your life. Need early or late times? We make it work when possible.

Our water heater repairs in Waltham include written warranty protection. If something’s wrong afterward, we return and fix it.

GEM Plumbing Heating Cooling u0026 Electrical service truck exterior

(833) 222-2953

customer and technician interaction

Prevent Issues with GEM’s Home Comfort Club

Remove uncertainty from home maintenance with GEM’s Home Comfort Club. This membership keeps your heating, cooling, plumbing, and electrical systems running optimally.

As a member, you receive priority scheduling, exclusive discounts, and annual tune-ups that catch small issues before emergencies. It’s the simplest way to protect comfort and save money.


Other Water Heater Services You May Need


Book Water Heater Repair in Waltham Now

Cold showers and tepid water don’t need to disrupt your routine. GEM’s Waltham water heater repair team diagnoses problems and restores hot water quickly. From element failures to leaking tanks, we handle everything with same-day service and upfront pricing. Call GEM or book online to schedule repair today.

GEM technician in front of service truck


Waltham Water Heater Repair Questions

Is repair or replacement the better option?

Age and condition guide this choice. Water heaters under 10 years with isolated issues typically warrant repair. Units past 12 years, especially with leaks or corrosion, often make replacement smarter. GEM’s plumbers assess your situation and offer honest recommendations.

Does GEM work on all water heater brands?

Yes. Our Waltham team repairs all major brands of traditional tank water heaters. Electric or gas, our licensed plumbers diagnose quickly and restore hot water.

What causes complete hot water failure?

Total failure usually stems from element burnout, thermostat malfunction, sediment blockage, or power issues. GEM technicians identify the cause and restore operation.

What makes my water heater rumble?

Sediment at the tank bottom creates rumbling during heating. Minerals accumulate over time, trapping heat and causing uneven boiling. Regular maintenance prevents this.

My water heater leaks – what now?

Shut the supply valve above the tank first, then cut power at the breaker or gas valve. Call GEM immediately. Leaks indicate loose fittings or tank failure. Our team offers same-day Waltham service and recommends the best solution.