Tankless Water Heaters

Hank the Tank

Water Heater Geeks

Powered by C.W. Cummings Plumbing

Tankless Water Heater Service Across Rhode Island

Tankless water heaters heat water when you need it instead of storing hot water in a tank. C.W. Cummings Plumbing provides tankless water heater installation, repair, flushing, descaling, and routine maintenance across Rhode Island.

Tankless Water Heater Services

From a new installation to routine maintenance, C.W. Cummings Plumbing can help keep your tankless water heater working the way it should.

01

Installation

Get help choosing and installing a tankless water heater that suits your home and hot water needs.

02

Repair

If your tankless system is not heating, is showing an error, or is not keeping up with demand, request service and let us take a look.

03

Flushing and Descaling

Routine flushing and descaling can help keep your tankless unit performing as intended. Ask about maintenance when you request service.

04

Routine Maintenance

Regular service helps you stay familiar with the condition of your system and address problems before they interrupt your hot water.

Common Reasons to Call

No hot water. Changing water temperature. Error messages. Unusual sounds. Reduced flow. A system due for maintenance. A planned replacement. C.W. Cummings Plumbing can help with each of these common tankless concerns.

Schedule Tankless Water Heater Service

Is a tankless water heater right for your home?

Tankless water heaters can be a good fit for homeowners who want to free up space and match a system to their household’s hot water use. The best option depends on your existing fuel source, the number of fixtures used at the same time, venting, space, and the condition of your current system.

Our team can help you understand the options and plan the right installation for your home.

Tankless water heater services

Tankless Water Heaters FAQs

Yes. A tankless system may need routine flushing and descaling. The service needed can depend on the unit and your home's water conditions.

Request service and tell us the system make and model if you have it. You can also add a photo to your request.

C.W. Cummings Plumbing can review your existing setup and discuss the installation requirements for your home.

Join the CW Cummings Membership Program Today!

Whether you’re looking to protect your entire plumbing system or keep your water heater running reliably, CW Cummings Plumbing’s Membership & Maintenance Clubs offer a smarter, more proactive approach to home plumbing care.

To learn more or enroll, call (401) 828-7730 or click below to ask about membership options. Our team will walk you through the benefits and help you choose the right plan for your home.

CW Cummings Plumbing Co. Reviews

Hear From Our Happy Customers

Top rated
C W Cummings Plumbing4.8
Based on 145 reviews
Karen Beese
1 week ago
Matteo and Joe did an excellent job installing my new water heater. They were friendly and professional. They took time to explain all that they were doing. CW Cummings answered my request for service quickly. Dee was also very helpful over the phone. Highly recommended!
Renee Hampshire
2 weeks ago
Unfortunately, when pluming problems arise. Rest assured CW Cummings will be there when contacted and they will be on time! Mateo and Joseph were efficient and helpful. Mateo gave some great suggestions to rectify the issues. Very knowledgeable as well. Go local, call them!
Ann Barber
1 month ago
Michael Tedeschi
1 month ago
I had some PEX fittings corroding and leaking from a different plumbing company. I was referred to Cummings from my well company and saw the positive reviews so decided to try. I was extremely satisfied with the all aspects of the process from the front office/scheduling (Dee) to the plumbing service quality and cost. Mateo was prompt/on time, extremely knowledgeable, and thorough. While doing the repairs he inspected the rest of the plumbing and recommended a shut off valve improvement so if the tankless water heater goes down it could be isolated so the rest of the house could run. My expectations for the service, quality, and cost were all exceeded and I would highly recommend their services. Thank you Dee, Mateo, and Cumming's Plumbing! MikeT
Happy Cat71
2 months ago
Matteo and Joe were phenomenal. Professional, knowledgeable, respectful, and courteous. We will definitely call again for plumbing needs. Thank you
Rosemary P
2 months ago
Matteo and Joe were courteous, professional, and great at explaining the pros and cons of different options in a way that is easy to understand. Fair price and great service!
Nice technician, wonderful service. Seemed very eager to help. I am truly sorry I couldn't afford it.
Nancy Weekley
3 months ago
We were very pleased with the response we received from CW Cummings. Matteo our technician was on time , professional, knowledgeable and friendly. Our issue was addressed along with other concerns. We look forward to working with CW Cummings in the future.
John Richards
3 months ago
Great service provided by CW Cummings. We had a problem with a toilet flange that needed to be replaced. Matteo did an excellent job on the repair and rebuilding the toilet itself. Very clean with attention to detail. He also performed a whole house inspection and made a couple of recommendations with a quote to do the work. There were not any pressing issues and there was no pressure to have this additional work done. Overall fantastic experience and will definitely be using them again in the future.
Jason DeAngelis
3 months ago
Abigail Windley
3 months ago
Ken was fantastic! He came out to troubleshoot a dishwasher backup issue, patiently tested the drainage and walked me through everything until we determined repiping was the solution. He gave me a fair, upfront price that included the service fee to come to Warwick and was able to complete the repair right then and there—no second appointment needed. He was knowledgeable, clean, polite, and genuinely took the time to listen and educate me. Highly recommend Ken and CW Cummings for honest, thorough, and professional plumbing work!
Lesley Bietz
3 months ago
Thank you. Look forward to using you again. Very skilled and nice plumber/serviceman.
Denise Richtarik
3 months ago
I had water on my basement floor. Matteo was able to pinpoint my problem in a flash. Excellent !
Kristen D'Aguanno
3 months ago
Kathleen Brown
3 months ago
Ken was hardworking, informative, and very thorough with all my questions. The pricing was very fair and reasonable. He did a phenomenal job and the work he did was excellent!
Joyce Thornton
3 months ago
Very professional and helpful.
tricia tuchon
4 months ago
Excellent work and customer service. Matteo was very professional and neat.
Trish M
4 months ago
Highly recommended. Ken was polite and professional. He helped us make the right choices and was able to schedule us for a same day repair when our water heater quit unexpectedly. He also did a great job repairing our shower on a separate call. We will call CW Cummings for all our plumbing needs.
Patricia Acton
4 months ago
Matteo Picozzi was very informative and helpful,would recommend this company,very professional.
Robert Godwin
4 months ago
Matteo did a great job repairing my shower faucet as well as flushing the hot water heater. He also provided helpful advice on filtration systems to remove unwanted sediment.
Susan Gourd
4 months ago
Great technician explaining everything. Problem was solved within a few hours after arrival. Complimentary inspection of the houses systems included in service fee. Nothing forced just suggested. Matteo Picozzi was excellent.
Jo Anne Robitaille
4 months ago
Mateo was a very nice guy. He knew what he was talking about. Very polite, etc. I would definitely get back to him if there is a problem. Jo Anne R.
Norman Benoit
5 months ago
Service guy was great explain everything have back again hope same guy is still there ty Norm
John O'Brien
5 months ago
Matteo was polite and well versed in all matters plumbing. 👍

Request Service

Hank the Tank

Need water heater help? Select Water Heater Service and tell us what’s happening. Add a photo if you can.