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Top-Rated Water heater installers and replacers in Old Lyme - Updated Nov 2026

Bill Aitken Heating, LLC
4.8(
47
)
Water Heater - Install or Replace

Serving Old Lyme, CT and surrounding areas

Approved

In business since 1990

Free estimates

Credit card accepted

"Bill and his assistant were very nice, friendly, experienced and professional. I was very happy that Bill contacted me within less than half hour of my submitting an inquire through home advisor, and I also like he confirmed his work before leaving and explained the problem of system during the work. This is the kind of customer service that will make me use him for all future plumbing work. Highly recommended."
7 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Diamond Plumbing & Heating, LLC
Diamond Plumbing & Heating, LLC
3.7(
86
)
Water Heater - Install or Replace

Serving Old Lyme, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2003

Emergency services offered

Warranties offered

"Great experience!! Amilcar and his team were efficient, respectful and very knowledgeable. They walked me through the process each step of the way, providing me with different options and really making me feel like part of the process with the installation of my ductless system. Great customer service, Amilcar was always a available when I called. I definitely recommend Diamond Plumbing for your heating, A/C or plumbing work!!"
4 High Efficiency Combi Install
Sewer main replacement
Surrey Ln
Clay sewer main replacement
Clay sewer main replacement

+13

4 neighbors recently requested a quote
Recommended by84%of homeowners
Befitting Plumbing & Heating LLC
5.0(
3
)
Water Heater - Install or Replace

Serving Old Lyme, CT and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"Matthew was very quick to get back to me and get the job done right. I had a leaking toilet that was not seated correctly so it ruined the floor beneath. I had this issue fixed 3 times before. Matthew came out and replaced the flooring underneath it and now it sits correctly on the floor and no longer leaks. I would definitely have them come back if I had any other plumbing problems"
Response time2 days
Recommended by66%of homeowners
Showing 1-10 of 30

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