*The Angi rating for Boiler Installation companies in Cornwall, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.
*The HomeAdvisor rating for Boiler Installation companies in Cornwall, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.
Last update on May 08, 2026
Serving Cornwall, CT and surrounding areas
Approved
In business since 2011
Free estimates
Credit card accepted
"Had a gas fired combi boiler installed. David was prompt, professional, and did excellent work. He even helped me out with a problem I was having with my sump pump, free of charge. Would definitely recommend All Around Mechanical to anyone in need of HVAC work."
Serving Cornwall, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"The installer did a fantastic job! I was totally satisfied with the company."
Serving Cornwall, CT and surrounding areas
Approved
In business since 2022
Small jobs welcome
Credit card accepted
"Very knowledgeable plumber. Willing to do beyond what is needed to accomplish task ( removal of water softening system) Very fair pricing."
+8
Serving Cornwall, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2006
Free estimates
Emergency services offered
"Everyone from sales, support staff installers were very nice and attentive to getting the job done correctly"
+37
Serving Cornwall, CT and surrounding areas
Approved
In business since 2023
Free estimates
Emergency services offered
"Andrew was great on time and personable. He knew what he was doing and even showed me the issues. He fixed what he was able to and advised me on what I need to do next since the next issue was not the plumbing. When I was urgently looking for someone to come fix the leak I had, everyone else was unable to make it the day of. Andrew made it in an hour from speaking with him. I would recommend his services to anyone needing a plumber."
Serving Cornwall, CT and surrounding areas
Approved
In business since 2018
Free estimates
Warranties offered
"Applied sun screen film to inside of large front storm window of my home. Good work."
+74
Serving Cornwall, CT and surrounding areas
Approved
In business since 2016
Free estimates
Warranties offered
"Great! We had a one hour virtual appointment to diagnose the problem with our dryer, James emailed us the part number to allow us to shop around and get it at a good price, and walked us through how we would install it once it arrives. He was knowledgeable, kind and very helpful."
+2
Serving Cornwall, CT and surrounding areas
Approved
In business since 1987
Free estimates
Warranties offered
"Connecticut Basement Systems prides themselves on their superior customer service, and they really live up to that. Their communication, quality of products and service, and attentiveness to customer needs is unsurpassed. Here are a couple of examples of how they go the extra mile for a satisfied customer: They installed their basement drainage system around my existing heating oil tank, but as I'm planning to convert away from oil this summer, they offered to come back AT NO EXTRA CHARGE once the tank is removed, to reroute the drainage system. Also, I was scheduled for a 3-day project, which included the replacement of some flooring in my basement. On the day the project began, we reconsidered the need for the flooring, and asked if we could cancel that portion of the job. They could not have been more accommodating to that adjustment, and made the change with no questions asked or negative attitude, even though it significantly lowered the price of the project and eliminated a whole day of scheduled work on 2-days' notice. That sort of total customer dedication is rare. I recommend them highly."
+13
Serving Cornwall, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"Hired Wes and his team to renovate my small and very outdated kitchen and I couldn’t be happier with the outcome. Wes kept me updated throughout the entire project and David worked nonstop to bring the design to life. His attention to detail and workmanship is outstanding. Overall the team is friendly, professional and goes above and beyond so I highly recommend 10/10 ?"
+68
Serving Cornwall, CT and surrounding areas
Approved
In business since 1999
Free estimates
Credit card accepted
"Very professional installers of my new walk in shower. They repaired dry wall and did plumbing and shower installation. Very happy with the job."
The average cost to install a new water heater is around $1,300, but you can expect to pay between $875 and $1,750, depending on the kind of water heater, the size of the unit, and the professional chosen to complete the work. Tankless water heaters can push your price higher, as installation is more complicated, with prices as high as $3,500. The location and accessibility of your water heater will play a role in the project cost, as those sitting in tight spaces like a crawl space will drive up your labor costs.
Yes, most states require plumbers to be licensed, and for good reason. Hiring an unlicensed plumber could lead to poor quality work, costly future expenses, and potential code violations.
As you browse our pro listings, take note of the “Angi Approved” badge. Angi Approved businesses meet our standards for certification which include:
The owner, principal, or relevant manager passed a criminal background check
Required to have applicable state and local licenses
Maintain an average star rating of 3.0 or better on our network, if they have at least one review
Paying to advertise their services
Meeting any other eligibility criteria required by Angi
Keep in mind licensing is different from certifications. A license is a legal requirement to operate a business, while certifications are voluntary.
It usually takes a professional water heater installer between two and three hours to remove an existing water heater and install a new tank heater. However, it could take four to five hours if they have to work in a small utility closet or another tight area, like a crawl space. Tankless water heaters have a more complicated installation process, so they will take a bit longer. Additionally, a gas water heater requires a connection to a gas line, and that alone can add about an hour to the installation timeline compared to installing an electric water heater.
It is very difficult and dangerous to install your own water heater, so we strongly recommend against tackling this as a DIY project. Not only will you need to wire your water heater, but you’ll also need to connect plumbing to the intake and outlet. Sweating copper pipes and connecting wiring properly are skills most DIYers don’t have, and even if you do feel confident you can do it, working with water and electricity always leaves the potential for electrocution. Hiring a local water heater installer is well worth the investment.
The average cost to hire a plumber is around $100 an hour but can vary between $45 and $200 an hour depending on the plumber’s experience and the repair that you need. It’s also important to note that these prices can go up on holidays, and emergency plumber rates average $150 per hour, in addition to a flat-rate trip fee of $100 to $350.
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