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 8953 reviews
David S. was great and solved our problem in no time! Such a relief!
I had the pleasure of working with William from Gem to replace a broken trip lever in my old bathtub.
He did a fantastic job and also helped me get in contact with other departments for additional home improvement services.
William was professional, knowledgeable, and very helpful throughout the process. I highly recommend his services.
The gem guys could not have been any nicer. We had to leave and trusted them in our home alone.
On time!!! Excellent knowledge of trade
Will definitely ask for them again. Jacob was very informative about the potential for future projects.
I shall definitely ask for Jacob again
Al Iacobbo
Great service did not make us wait weeks like most other companies that we called. Although pricing was extremely above market.
On time, professional, efficient, knowledgeable, helpful (and good with dogs). Who could ask for more?
Quick availability and knowledgeable technicians.
Gem Plumbing and my technician Victor were superb. He took his time listening to me, explaining everything in great detail, and expertly resolving my issue.
Brody was knowledgeable and got our AC up and running in no time. Would highly recommend him
Brian was on time, easy to communicate with, worked fast and efficiently, and was even able to help us with an additional problem during the same visit. We had a very good experience!
Took care of sink leak immediately!
Scott did a great job on the work, came up with good idea for updating our online valves replacement, noticed other future issue with kitchen sink.
Administration, scheduling could be better, I confirmed the appointment over 6 times
Great experience Mason was amazing and knowledgeable highly recommended
Very helpful service tech!
Visit was quick but efficient
Friendly and informative
nick was professional, knowledgeable, easy going
It was great service. Hate having to call on Sunday but it was so needed. Glad he came quickly and took care of the problem
Service was once again excellent. Efficient, knowledgable, respectful of property, and explained the work in detail and clearly. Provided detailed options. 10/10
Above and beyond. Efficient and professional
Jim and Rob(?) were very helpful. Thank you Rob for getting me back my hot water!
Chris repaired leaking natural gas valve for our BBQ. Quickly diagnosed the problem and did the repair without any problems.
Eric and his partner were very skilled and did a great job replacing the outdoor well tank
William and his brother were very professional and extremely nice. They also were very knowledgeable and I felt I could understand what they actually did in the end. Great workers.
Outstanding work by professionals who know what they are doing.
Quality and professional


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.