October Is Breast Cancer Awareness Month

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

Enjoy Better Hot Water All Year with GEM

If you’ve ever run out of hot water mid-shower or waited for a tank to refill before doing laundry, you know how frustrating a traditional water heater can be.

Older tanks can struggle to keep up with daily household demands, leaving you with inconsistent temperatures, higher energy bills, and ongoing maintenance. Upgrading to a tankless water heater solves these problems while improving your home’s efficiency. Unlike traditional systems, a tankless model heats water on demand, providing endless hot water while saving space and energy.

At GEM Plumbing & Heating Services, LLC, we help homeowners throughout Rhode Island and Southeast Massachusetts take the stress out of this upgrade with clear guidance and expert installation. Offering decades of experience installing tankless water heaters, GEM makes the process simple.

We handle every detail so you can enjoy reliable hot water and peace of mind. Contact GEM today to schedule your tankless water heater installation.

(833) 222-2953

GEM Technicial Inside Van


(833) 222-2953

Tankless Water Heater Installation Done Right

Choosing the right installer makes a difference in how your system performs over time.

GEM has been working in homes throughout the region for decades, giving our team a clear understanding of local water conditions, housing styles, and system demands. That experience helps us recommend the right tankless setup and complete installations that perform reliably. With technicians already working in neighborhoods across the area, we provide responsive service, clear communication, and a process that feels straightforward from start to finish.


Skilled employees

Trucks on the Road

Years in Business

Emergency Service


GEM’s Step-By-Step Tankless Water Heater Installation Process

GEM keeps the process of installing a tankless water heater simple and straightforward.

We evaluate your household’s water usage, number of bathrooms, and daily demand to determine the right system size, ensuring your new tankless unit can supply hot water efficiently for your family.

GEM walks you through high-quality models, explaining energy efficiency, durability, and capacity. You’ll get clear recommendations that balance performance with your budget.

Our technicians carefully install the unit, connecting plumbing and electrical systems according to code. Every installation is completed with precision to ensure long-lasting reliability.

Once installed, we test the system thoroughly for proper flow, temperature, and performance. We also walk you through operation and maintenance so you feel confident using your new tankless water heater.

Female Gem Plumbing u0026amp; Heating employee sitting at a desk smiling

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What Our Customers Are Saying

100% Satisfaction Guarantee

4.6
Based on 9518 reviews
Steven sogoloff
22 hours ago
We did a maintenance request for our heating system. Christian and Joie were very pleasant and gave us the results based on their analysis of the system. They arrived within the time frame and completed the process in about 30 minutes.
Joanne Iachetta
22 hours ago
Showed up when expected. So kind and courteous and explained everything to me that would need to be done for my plumbing issue. Would highly recommend GEM.
Vin Milano
1 day ago
Erickson was great! Explained conditions of units and recommendations for upkeep!
Doug Williams
2 days ago
The service was good.Aiden was very good. It’s just they said they were on there way 2hrs and30 min they finally arrived. Waited all afternoon
The 2 service men were on time, assessed the problem, diagnosed the issue, came up with a plan and offered several solutions for fixing our mini split. They took pictures, tried clearing out mice debris , attempted to get the outside machine to work ( apex 2 hours) Alas a no go, so we decided to scrap it and go with baseboard heater for the room over the garage. Up front information and pricing , no nonsense. Affable techs and so far great service.
Doug Dustin
2 days ago
I would recommend Nathan and GEM in the event of a plumbing emergency and or issue
David Polishook
3 days ago
No repair was performed at this time I had to pay a diagnostic fee.
Eaven though I was very specific what toilet I wanted they put the wrong one in.
Kristen Mouris
3 days ago
Absolutely incredible and fast service from Nicole T! Our upstairs toilet began leaking Saturday night and by noon on Monday we had a new toilet! Nicole was super informative and walked us through our different options every step of the way. She made an otherwise stressful situation so much easier!
Robert Mason
3 days ago
I had a great experience with Gem Plumbing and Heating. It was great starting from the initial phone conversation and continued with Brian Ciaschini. Brian was an excellent electrician, he was cordial, informative and helpful. Brian made sure everything was working perfectly! I would recommend them and I will use them again.
Friendly, efficient working time, knowledgable!
keith farnham
3 days ago
Excellent as always
Alex Fagundes
4 days ago
Exceptional service! Knowledgeable, and they left with giving me a lot of insight on boilers and options we had. They left and we felt much better.
Joanne Bennett
6 days ago
Exceptional service from GEM. Douglass is absolutely the best !!! … will use them again. Thank You!
buddy croce
6 days ago
Workers were polite and knowledgeable. They diagnosed the problem right away. And we're able to repair it same day.
Steven Pichette
7 days ago
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
7 days 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
7 days ago
Christopher was efficient and courteous and completed my boiler and split unit heat annual maintenance quickly. Highly recommended!
Maureen Walsh
7 days 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
7 days 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
7 days ago
Seemed very knowledgeable and very informative. Friendly service as well.
Jim Harrod
7 days 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
7 days ago
Professional, informative, and reliable!
Malek Askar
1 week 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
1 week ago
Erickson was great. Efficient, friendly and through. Very professional


GEM technician portrait in front of GEM service truck

(833) 222-2953

4 Clear Signs Your Home Could Benefit from a Tankless Water Heater

Traditional water heaters are reliable for a time, but there are clear signs that an upgrade is overdue.

Watching for these issues can save you money, improve comfort, and prevent future emergencies.

If your showers or laundry cycles leave you waiting for water to heat up, your current tank may not meet your household’s needs. Tankless systems provide endless hot water on demand.

Older tanks heat and store water constantly, wasting energy. Switching to a tankless model can reduce your utility costs by heating only what you need.

Traditional tanks take up significant space in basements, closets, or utility rooms. Tankless units are compact, freeing up space and giving your home a cleaner, modern look.

Visible rust, corrosion, or leaks indicate your water heater is at the end of its life. Replacing it with a tankless system prevents damage and improves reliability.

How Long Can You Expect Your Tankless Water Heater to Last?

Tankless water heaters are built for longevity, often lasting 20 years or more with proper care, roughly twice the lifespan of traditional tank models.

Their durable components and efficient design help minimize wear, giving you reliable hot water for many years. With regular care, a tankless water heater can provide your home with consistent comfort and fewer replacements.

Unlike traditional units that often fail after a decade, a well-maintained tankless system is engineered to provide reliable service for decades.

Since these systems don’t store water, they are significantly less prone to the rust and sediment buildup that typically shortens the life of tank-style heaters.

Most tankless models are designed with modular parts, allowing for easy repairs and component swaps rather than requiring a full unit replacement when a single part wears out.

Why New England Homeowners Rely on GEM for Tankless Water Heater Installation

Choosing GEM means working with a team you can trust for a major home upgrade.

From expert installation to long-term support, we make your project smooth and reliable. Here are some reasons why homeowners across New England choose GEM for tankless water heater installations:

We understand that waiting for hot water isn’t an option. GEM works quickly to get your system up and running as soon as possible.

With years of hands-on experience installing tankless systems across Rhode Island and Southeast Massachusetts, GEM has the know-how to handle any home.

We provide clear, honest guidance about system choices and installation, helping you make decisions that fit your home and budget.

Every GEM technician is fully licensed and insured, giving you peace of mind that your installation meets all local codes and safety standards. We stay current with industry certifications and regional requirements.

We stand behind our work with strong warranty coverage on both labor and equipment, protecting your investment for years to come. If issues arise, we’re here to make things right.

GEM provides upfront, detailed pricing before any work begins, so you know exactly what to expect. We believe in honest estimates with no surprise charges or last-minute add-ons.

Water heater in a residential basement.

(833) 222-2953


customer and technician interaction

Our GEM Family Cares for Your System’s Entire Life

Your homes HVAC, plumbing and electrical systems work hard all year. Regular maintenance keeps it running efficiently, quietly, and reliably for years to come.

Our Home Comfort Club makes maintenance easy with annual tune-ups, priority scheduling, and discounts on repairs. We catch problems before they become emergencies and keep your home’s systems running the way they should, year after year.


Maintaining Your Tankless Water Heater for Long-Term Comfort

A tankless water heater delivers consistent hot water, but regular care is key to keeping it performing at its best.

Flushing the system, checking for mineral buildup, and inspecting components periodically ensures efficiency, prevents corrosion, and extends the life of your unit.

GEM’s Home Comfort Club takes the worry out of maintenance. Members get routine service visits, automatic reminders, and priority scheduling so their tankless system runs smoothly and provides hot water for years to come. Ask about the Home Comfort Club today!

GEM technician in front of service truck



Schedule Your Tankless Water Heater Installation With GEM

Upgrading to a tankless water heater is a smart investment in comfort, efficiency, and peace of mind.

Reach out today to schedule your free consultation or chat with our team to learn how a tankless water heater can transform your home’s hot water experience.

What Is a Tankless Water Heater and How Does It Work?

A tankless water heater, also known as an on-demand system, heats water only when you need it rather than storing it in a tank. As water flows through the unit, it is heated instantly, eliminating standby energy loss and providing a continuous supply of hot water. This design is more compact and energy efficient than traditional systems, making it a practical option for many homes.

How long does a tankless water heater installation take?

Most installations are completed in a single day, depending on your home’s size and existing plumbing or electrical setup. Some projects may take longer if upgrades or adjustments are needed. GEM works efficiently and keeps you informed throughout the process.

What type of tankless water heaters does GEM install?

GEM installs high-quality, energy-efficient tankless gas and electric tankless water heaters from trusted manufacturers. These systems are selected for reliable performance and long-term durability. Your technician will recommend options that fit your home’s needs and usage.

Will installation require modifications to my home?

Some installations may require minor updates to plumbing, gas lines, or electrical connections. These adjustments help ensure the system operates safely and efficiently. GEM completes all work cleanly and prepares your system for immediate use.