October Is Breast Cancer Awareness Month

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

Professional Water Heater Replacement Services

No hot water? GEM provides same-day water heater replacement to get your household back on track fast.

At GEM Plumbing & Heating Services, LLC, we provide emergency water heater replacement services in Cambridge. When your system has failed and you need help immediately, our licensed plumbers will reach you quickly, assess the problem, and install a new water heater as fast as possible. Give us a call today for same-day water heater replacement in Cambridge.

(833) 222-2953


We Serve the Cambridge Area

When you’re dealing with no hot water, you need a plumber who can actually get there today.

Our technicians understand that a failed water heater disrupts everything. GEM has the team and equipment to respond to emergencies across Cambridge and the Greater Boston area the same day you call. We stock common water heater models on our trucks so we can often finish your replacement in a single visit.

Years in Business

Skilled employees

Emergency Service

Trucks on the Road


(833) 222-2953

Same-Day Water Heater Replacement Services

Every hour without hot water makes the problem worse. GEM responds fast.

Right now you can’t take a proper shower, can’t wash dishes effectively, can’t do laundry. Your household is stuck. GEM offers same-day replacement services in Cambridge for exactly this situation. Our technicians arrive on time, diagnose the failure quickly, and install a new water heater the same day so you’re not going another night without hot water.

GEM Makes the Water Heater Replacement Process Easy

You have enough on your plate right now. GEM handles the replacement so you don’t have to.

GEM moves quickly and takes care of everything so you can get back to normal.

Your water heater is down and you need help now. Call us or book online and let us know it’s urgent. We prioritize emergency calls and dispatch technicians to Cambridge as quickly as possible.

Our technician quickly assesses your failed water heater and confirms replacement is needed. We present options clearly, provide upfront pricing, and get your approval without wasting time.

Once approved, our licensed plumbers work efficiently to restore your hot water. We remove the failed system, install the new one, and ensure every connection is safe and meets code.

We verify everything works before leaving. You’ll have hot water running and confirmation that your new system operates correctly. We don’t leave until you’re satisfied.

(833) 222-2953


GEM technician standing beside branded service van

(833) 222-2953

Here’s Why You Should Replace Your Water Heater

Your water heater already failed. Here’s what a new one delivers.

The most immediate benefit: hot water again. Showers, dishes, and laundry can happen normally starting today.

Your old system failed you. A new water heater provides steady, dependable hot water without the worry of another breakdown.

That old water heater was probably wasting energy before it died. Your new system will use less energy for the same hot water output, reducing utility costs going forward.

Replacing now means you won’t face this emergency again anytime soon. A new unit performs reliably for 10 to 15 years with proper maintenance.

Why Cambridge Residents Choose GEM for Water Heater Replacements

When your water heater has failed, you need a company that treats your emergency like an emergency.

You can’t wait days for an appointment or wonder if the plumber will actually show. GEM understands that no hot water is a real problem needing same-day resolution, and we have the team and equipment to make that happen.

GEM technicians serve Cambridge regularly, from the dense neighborhoods of Central Square and Harvard Square to the residential areas of North Cambridge, West Cambridge, and Cambridgeport. We understand the plumbing challenges of Cambridge’s mix of historic homes, triple-deckers, and modern construction. When you call with an emergency, we can reach you quickly.

GEM has handled water heater emergencies across Massachusetts since 1949. Seventy-five years of urgent calls means we know how to work fast without cutting corners.

GEM handles plumbing, HVAC, and electrical under one roof. If your water heater failure reveals another problem, we can address that too without calling someone else.

This is what we do. Our team size and stocked trucks exist specifically so we can provide same-day water heater replacements across Cambridge when you need us.

Even in an emergency, you deserve to know what you’re paying. GEM provides clear estimates before any work begins.

An unexpected water heater replacement can strain your budget. GEM helps you find available rebates through Mass Save and offers financing to make the cost more manageable.

Even when working fast, we don’t cut corners on equipment. We install reliable water heaters from trusted manufacturers that will serve you well for years.


What Our Customers Are Saying

100% Satisfaction Guarantee

4.6
Based on 9556 reviews
Marian Roberge
15 hours ago
I’m very pleased with the work done by Cristian & his helper. Communication was very much appreciated – every question was answered and explained throughout the entire project. It’s rare to find someone who takes pride in their work these days. I would highly recommend GEM to anyone looking for a skilled contractor.
Had a leaking T&P relief valve on my water heater. Called GEM, they came out just a few hours later, replaced the valve with a new one, and they could not have been nicer or more professional. Very satisfied and grateful for their speed and knowledge. Would absolutely call on them again. I did not pay anything because I am under warranty.
Steve Janzen
1 day ago
Excellent work and highly recommended.
Been using this company for years and they have always provided great service from support to techs
Melissa Mello
1 day ago
We needed a new furnace. They sent someone out the next day to provide an Estimate. The price seemed reasonable and the discounts made it even better so I booked them to complete the job. I received a call later the same day and had the furnace installed the following day by Ethan and Kevin. The following Monday, my furnace would not fire. After evaluating the situation it was found that we needed to relocate our exhaust pipe. Ethan and Kevin were sent to do the job. The original installation was done in less than a day and assessing and relocating the exhaust pipe was done in a few hours. I am happy with the service.
tracey ott
2 days ago
We received great service and happy with the results!
Soccercezanne
2 days ago
Exceptional service and attention to details.
Emilio Guzman
2 days ago
The guys did an amazing job! They went above and beyond to help us understand the process. They took the time to make sure we were happy. They cleaned up the job site and made it look as if nothing happened. I highly recommend this team.
Donald Dos Vais
2 days ago
If l owned a business l’d hire Tom in a New York minute!! I would definitely not score a 10, but an eleven!!!!!!
Maggie C
2 days ago
Quick service, good communication. Reliable. Friendly staff.
Peek Peter Muth
2 days ago
Excellent service !! Very professional and honest
Cherie Richer
2 days ago
Problem with seeing same day as the request, very professional, knowledgeable, a pleasant young man also
Gerry N
2 days ago
There deserve more than five stars they're great people and do great work
Kim N
2 days ago
They fixed exactly what I needed! Very pleased. Definitely recommend!
Explained everything in detail. They were excellent in explaining and showing us how it works. Thank you
Ron Scarborough
2 days ago
David was very thorough, knowledgeable and professional. He paid attention to detail and explained everything to ensure we were satisfied with the work.
Rose Marsan
2 days ago
Technician was efficient.
Geoff Schoos
2 days ago
Both David C was excellent! Hecame on time, walked me through what needed to be done, and when completed showed me the final product. He was very professional, pleasant and respectful of our home. I strongly recommend him for any repairs needed.
Their $99 promotion — main drain cleaning + camera inspection — is a great deal. The guys who did the work were very systematic, surveying the drain pipe both before and after cleaning it out, and explaining what they found very clearly. They followed up with a proposal for fixing the pipe. I will of course bid out the repair, and I have no information about how efficient and economical they are for doing this work.
Percilla Perry
2 days ago
On time, and suggested further repair. Installed new furnace replacement.
jarrod Roach
2 days ago
Living on the Cape finding a reliable service company can be difficult. GEM is now my go to for HVAC and plumbing service.
> Five stars for Davontay V. He came out to our Foxborough building for a no-heat call, found a loose heat-call wire in minutes that the previous tech had walked right past, reconnected it, and there was no charge for the visit. Professional, fast, and honest. He's our requested tech from now on. Additionally, Davontay also put the lock cover back on, locked up every door, shut off the lights, and took care of a few small cleanup items that weren't part of his job — all without being asked. Great job!
James Webb
3 days ago
Brian from Gem did an excellent job installing my kitchen faucet!! He was very courteous and made sure everything was clean before he left.
sinclairhome
3 days ago
Efficient and clean electrical
Jodi Livermore
3 days ago
I was so grateful to get such quick, great service, especially on a holiday weekend. Devin was excellent, explaining everything to me and making recommendations. My go to company for all future plumbing needs!

Keep Your New Water Heater in Top Shape with Routine Maintenance

Once your emergency is resolved, regular maintenance helps prevent the next one.

You just went through something you’d rather not repeat. Regular maintenance catches the small issues that lead to sudden failures. GEM offers professional maintenance services to help ensure your new water heater doesn’t leave you in this situation again. Call GEM today to learn more.

customer and technician interaction


GEM technician in front of service truck

Choose GEM for Water Heater Replacement Services in Cambridge

You need hot water now. Call GEM.

GEM serves homeowners with same-day emergency replacement when your water heater fails. We’re ready to respond quickly for quality water heater replacement in Cambridge. Give us a call or contact us online right now.



Water Heater Replacement FAQs

How fast can GEM get to my Cambridge home?

We prioritize emergency calls and can often dispatch a technician the same day you call. Cambridge’s central location means we typically have technicians nearby. If you call in the morning, we can frequently complete your entire replacement before evening.

What if I don’t know what kind of water heater I need?

Our technician assesses your home’s requirements and recommends appropriate options on the spot. We carry common models on our trucks, so we can often install the same day without a second visit. Cambridge’s mix of housing types means we see a variety of configurations and can advise accordingly.

Is emergency water heater replacement more expensive?

GEM provides the same honest, upfront pricing for emergency calls as for scheduled appointments. We give you a clear estimate before starting any work.

Can I get rebates even though this is an emergency?

Yes. Mass Save rebates apply regardless of whether your replacement was planned or emergency. GEM helps Cambridge homeowners identify qualifying models and submit rebate applications.