New High-Efficiency Hot Water System + One Year of Free Home Comfort Club

GEM plumber servicing residential water heater

Hot Water Solutions for Waltham Homes

New England weather puts extra demands on your water heater. When your system can’t keep up with the cold, you need a trusted team that understands local conditions and responds fast.

GEM Plumbing & Heating Services, LLC responds fast when your water heater fails. Our licensed plumbers serve Waltham with same-day installation and honest pricing. We install quality systems that deliver reliable hot water for years. Call GEM today for water heater installation services in Waltham.

(833) 222-2953


Need Water Heater Installation in Waltham? GEM is Close By!

Since 1949, GEM has been the trusted choice for Waltham homeowners. Our decades of experience mean we understand what local homes need.

Three generations of local families have counted on us, from Moody Street to the Watch Factory and the college areas. That experience means we know the Victorian-era homes, three-deckers, and newer developments and the unique challenges they present. Being local means we respond faster and serve you better. When you need water heater installation done right, we’re already close by.

(833) 222-2953


Skilled employees

Trucks on the Road

Years in Business

Emergency Service


Female Gem Plumbing u0026 Heating employee sitting at a desk smiling

(833) 222-2953

Our Water Heater Installation Process

A broken water heater disrupts your whole household. GEM’s simple process gets you back to normal quickly. Here’s what to expect when you need a new water heater installed in Waltham:

Our technician examines your current water heater and assesses your household’s hot water needs.

We present replacement choices that fit your space, energy source, and budget. You’ll see transparent pricing before we proceed.

Our licensed plumbers disconnect and remove your old unit, install your new water heater, and make all connections properly.

We verify your new system heats correctly and operates safely. We clean up completely and confirm your satisfaction.


What Our Customers Are Saying

100% Satisfaction Guarantee

4.6
Based on 9701 reviews
Bob Wittman
15 hours ago
Erickson was extremely knowledgeable, personable and professional.He was a pleasure to work with and did an outstanding job.
Dave Doyle
17 hours ago
I recently had a mini splint installed by Evan, Nick and Kerron at GEM. Fantastic experience and service–those guys did great. I also had a Generac put in a few years ago, and am pleased with the overall level of service I get from GEM. Hard to go wrong!
Deb Smith
18 hours ago
Checked my humidifier on the furnace and fixed it. Joe H fixed it, he’s great, as always.
David Casper
18 hours ago
Technicians were wonderful. Very knowledgeable and provided multiple options to address a complex problem. Thank you!!!
Paul Hoyt
19 hours ago
serviced our split system in a competent and efficient manner
Joe Lucia
20 hours ago
Tom and Ethan were professional, knowledgeable, and efficient in unclogging the impeller of our outdoor sump pump and cleaning all the leaves and debris out of the underground basins that feed the pump! Highly recommend!
Bill Scarsciotti
20 hours ago
The technicians were very friendly, courteous and through with the work and explained exactly what was done. Went the extra mile to make sure Everyting was just right and left the place clean.
Stasia Mowry
22 hours ago
A very polite and knowledgeable service technician and good service was given.
Julia Frugoli
22 hours ago
This is fourth time we've used this service. They are quick, professional and knowledgable. Very responsive and worth the money!
Anne Geary
23 hours ago
John came to my home to do yearly heating maintenance. He was very informative and thoughtful. I would recommend him he is very knowledgeable and professional.
Kyla Piquette
23 hours ago
Eric is very professional and helpful. If you contact GEM ask for Eric for your appointment.
jarrod Roach
1 day ago
Living on the Cape finding a reliable service company can be difficult. GEM is now my go to for HVAC and plumbing service.
Gem is a good company with pleasant people who are always willing to help. We were recently visited by Christopher and Nicholas. Thank you for your help and advice.
Luigi Misuraca
2 days ago
Very professional and helpful really appreciate the work you guys did . Top notch
On time, courteous, efficient and explained what they did.
Roland Jarest
2 days ago
Brian and Mason were fantastic and did a great job!
⭐⭐⭐⭐⭐ I had an excellent experience with GEM Plumbing & Heating! Corey was absolutely wonderful. He was professional, knowledgeable, courteous, and very attentive. He took the time to make sure everything was done properly and provided outstanding customer service. It’s refreshing to have someone who genuinely cares about the quality of their work and their customers. I highly recommend Corey and GEM Plumbing & Heating. Thank you, Corey, for such a great experience!
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!!!!!!
Sara
2 days ago
Devin was very knowledgeable, professional and incredibly helpful
Eileen Yee
2 days ago
GEM Service Technicians are always pleasant & efficient. GEM scheduling is difficult- , they always cancel & reschedule.
FX Flaherty
2 days ago
David S. was amazing…he not only greatly assisted us with addressing our issues but he did in such a polite and educational manner…I cannot highly recommend enough..he was great!
Jeannine Kolb
2 days ago
Christopher Brouwer is a great technician. He is knowledgeable, professional and personable. I would recommend him to anyone and would welcome him for any future work on my AC system.
Installed my air conditioner. Excellent service!!!
Barry Wepman
3 days ago
Brody and Clarissa were really great. Obviously they knew what they were doing and made reasonable recommendations about ongoing service. Most importantly we’ve got heat! And GEM has a new customer!
Robert DelBove
3 days ago
Kevin arrived on time and I was notified that he was on his way. Good communication on the dispatcher’s part. I showed him the utility room and trusted he would do the work so I got out of his way. He was efficient and got the service completed in no time.


How to Know When You Need a New Water Heater Installed

When these problems appear, replacement is often the smartest choice.

These signs are common in aging water heaters throughout Waltham. GEM can help you determine the best path forward.

Most water heaters last 8 to 12 years. If yours is approaching or past the 10-year mark, efficiency has likely dropped and the risk of failure increases. Replacing now avoids unexpected breakdowns and the inconvenience that comes with them.

Discolored hot water or visible rust on the tank exterior signals corrosion inside. While sometimes caused by aging pipes, rust in hot water that clears up after running usually points to the water heater itself. This problem only gets worse.

If your water heater used to recover quickly between uses but now takes hours, age and sediment are catching up. When flushing no longer helps, the system is losing capacity. Replacement restores reliable hot water.

For gas water heaters, a pilot light that keeps going out indicates a failing thermocouple or other component. While sometimes repairable, recurring pilot problems in older units often point toward replacement being the better investment.

Water heater in a residential basement.

We Install All Types of Water Heaters in Waltham

Choosing the right water heater means matching capacity to your household’s needs. GEM guides you to the best solution.

Here’s a look at the types of water heaters we install in Waltham:

Tank water heater installation in Waltham is the tried-and-true choice for most households. These units store 40-80 gallons of heated water, ready whenever you need it. Tank models work with gas or electric power, install affordably, and deliver dependable performance for families running showers, laundry, and dishes throughout the day. For consistent hot water without surprises, a properly sized tank water heater gets the job done.

Tankless water heater installation in Waltham appeals to homeowners who want endless hot water and energy savings. These compact units heat water on demand as it passes through, so you never run out mid-shower. Tankless systems mount on walls, freeing up floor space in tight basements or utility closets. GEM installs tankless water heaters in Waltham homes looking for efficiency and long-term value.

Whether tank or tankless, today’s high-efficiency water heaters cut energy use without sacrificing performance. GEM installs ENERGY STAR certified models that qualify for rebates and lower your monthly utility bills. We’ll help you weigh upfront costs against long-term savings to find the smartest choice for your Waltham home.

GEM Plumbing Heating Cooling u0026 Electrical branded van close-up

(833) 222-2953

Waltham Residents Trust GEM for Water Heater Installation: Here’s Why

When you need water heater help in Waltham, there’s one name local families trust: GEM. Here’s what sets us apart.

Since 1949, GEM has been the name families trust for home comfort. Decades of experience mean we’ve solved every water heater challenge imaginable.

When your water heater quits, you shouldn’t wait days for help. Our 500-truck fleet and 700+ technicians mean we’re nearby and ready. often arriving the same day you call.

GEM’s technicians are fully licensed, insured, and trained to meet the highest industry standards. Your home is in capable, trustworthy hands.

GEM provides detailed estimates upfront. You’ll understand exactly what you’re paying for before any work begins. No surprise charges, ever.

We install trusted brands and durable, energy-efficient water heaters built to deliver reliable hot water for years to come.

GEM treats every customer like a neighbor. We’re responsive, respectful, and focused on your satisfaction from first call to final inspection.


Our GEM Family Cares for Your System’s Entire Life

A new water heater is an investment worth protecting. Regular maintenance ensures peak performance and maximum lifespan.

GEM’s Home Comfort Club makes upkeep easy. Members enjoy annual maintenance visits, priority scheduling, and exclusive discounts on repairs and future installations. We catch small problems before they become expensive emergencies, helping your water heater last longer and perform better.

customer and technician interaction

GEM technician in front of service truck

Contact GEM for Water Heater Installation Services in Waltham

Tired of cold showers and inconsistent hot water? GEM has the solution.

Reach out today to schedule your water heater installation in Waltham. Our team responds fast, installs professionally, and makes sure you’re completely satisfied. Same-day service is available. Call GEM today or contact us online to schedule your water heater installation in Waltham!


Other Water Heater Services You May Need


Water Heater Installation FAQs

What kind of warranty comes with water heaters?

Manufacturer warranties on tank models typically cover the tank for 6 to 12 years. Higher-quality units tend to have longer coverage. GEM ensures Waltham customers understand their warranty before purchasing.

Does Mass Save offer incentives for water heater replacement?

They do, for qualifying high-efficiency models. The program offers rebates that can make upgrading to efficient equipment more affordable for Waltham homeowners. GEM helps you navigate the options and choose equipment that qualifies for maximum savings. We’re familiar with the current programs and can guide you through the application process.

Do I need a permit for water heater installation?

In most cases, yes. Water heater installation typically requires a permit to ensure the work meets local codes. GEM handles permitting as part of our standard service for Waltham customers. We pull the necessary permits and schedule inspections so you don’t have to navigate that process yourself.

How do I maintain my new water heater?

Annual flushing to remove sediment buildup extends water heater life and maintains efficiency. The anode rod should be checked every few years and replaced when depleted since it protects the tank from corrosion. GEM’s Home Comfort Club includes maintenance visits that handle these tasks. For Waltham homes with hard water, more frequent flushing may be beneficial.

My water heater is having problems. Should I repair or replace it?

That depends on what’s wrong and how old the unit is. A relatively new water heater with a failed heating element or faulty thermostat is usually worth repairing. But if your system is approaching 10 years old and showing multiple symptoms like inconsistent temperatures, strange noises, and rust in the water, replacement is typically the smarter investment. GEM serves Waltham with honest recommendations, not upsells. We’ll tell you what we’d do if it were our own home.