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Top-Rated Tankless water heater installers in Barrington - Updated Nov 2026

Avatar for R.A. Mechanical, Inc.
R.A. Mechanical, Inc.
4.7(
363
)
Tankless Water Heater - Install

Serving Barrington, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"I had a tankless water heater installed. I gave 4-1/2 stars for overall rating because the worker who came was the lone installer and had no one to help. I could not use water for almost sever hours an inconvenience since job was estimated to be "about 4 hours". I think he took a deserved lunch break for about an hour. He was on time and was courteous and pleasant. Would have been nice if he had a helper."
Misc
Misc
Misc
Misc
Misc

+63

Response time5 hrs
405 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Aqua Knight Plumbing Co.
Aqua Knight Plumbing Co.
5.0(
16
)
Tankless Water Heater - Install

Serving Barrington, IL and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

With 24 years of experience we are dedicated to providing our clients with the very best in service, installation, and repairs for all phases of your plumbing needs. We specialize in a variety of residential and commercial services from water heater installations, sewer main installations, sump pump installations, repairs and so much more! We take pride in the attention to detail put into each of the projects \nwere involved with. Were known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction. \n \nAll Work Is Warrantied - Inquire Within \n \nMilitary Veteran and First Responders Discounts Available - Inquire Within \n \nDeposits May Be Required - Inquire Within \n \nAccepts Cash, Checks & Major Credit Cards \n \nFinancing Options Are Available - Inquire Within \n \n24/7 Emergency Services Available \n \naquaknightplumbing.com

New Sump Pit
Outside Clean Out
Outside Clean Out
March 2026
July Clog Log

+169

5 neighbors recently requested a quote
Recommended by31%of homeowners
Avatar for All Affordable Plumbing Inc
All Affordable Plumbing Inc
4.9(
178
)
Tankless Water Heater - Install

Serving Barrington, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Emergency services offered

Warranties offered

"Alfonzo arrived on time and was extremely polite and professional. Him and I looked at the work I wanted completed together. He gave me two options. A more in detailed option and a less detailed option. Both prices were within the quoted amount. We went with the more detailed approach because of where we wanted our garage heater placed. Alfonzo was here for three hours. He had a lot of cuts to do to make this work. The outcome is awesome. Looks great in the garage and in my basement. He even took off his shoes every time he came in my home and carried them to the basement to finish his work. I would highly recommend!!!"
Pipe was completely packed! Drain cleaning was not going to do the  job here!
Master Bath - Chicago
Geberit wall mounted toilet carrier installed. Wall mounted faucet installed. Hall Bath.
You can see the crud inside the pipe accumulated over 60+ years!
Old Broken Clay pipe just outside the foundation wall.

+41

Response time11 hrs
Recommended by96%of homeowners
Avatar for JVS Plumbing Company
JVS Plumbing Company
4.9(
120
)
Tankless Water Heater - Install

Serving Barrington, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"Very friendly workers, did a great job, and were very careful about any messes they made. The tankless water heater they installed, couldn't have been installed any better."
Drinking fountain install
Drinking fountain install
75 gallon water heaters
Grease interceptor instal
Grease interceptor instal

+45

Response time1 day
28 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Toptec Heating, Cooling, Plumbing & Electrical, Inc.
Toptec Heating, Cooling, Plumbing & Electrical, Inc.
4.4(
614
)
Tankless Water Heater - Install

Serving Barrington, IL and surrounding areas

Approved

Super Service Award Winner

In business since 1993

Free estimates

Emergency services offered

"I called Top Tec Oct 4 to check my existing water heater. Steve came out and looked it over and gave me the bad news. My 9 year old water heater was shot. The next day, Steve removed my old water heater and installed a new Rheem water heater. I could not be more pleased with how quickly the work was completed and with Steve’s expertise!"
Duct Cleaning Before/After
Additional Photos
Additional Photos
Barrington Geothermal Lake Heat Exchangers
Barrington Geothermal - WaterFurnace Geothermal Heating/Cooling Systems with Desuperheaters

+48

Response time1 day
Response rate100%
10 neighbors recently requested a quote
Avatar for Four Seasons Heating & Air Conditioning
Four Seasons Heating & Air Conditioning
4.3(
3,298
)
Tankless Water Heater - Install

Serving Barrington, IL and surrounding areas

Approved (Corporate)

In business since 1971

Free estimates

Emergency services offered

"It couldn’t have gone better! Carl was experienced, knowledgeable and friendly. Plus, he smelled gas which is why he replaced the valve on my water heater. It was a great visit!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time9 hrs
44 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Kwik Serv Plumbing Heating and Cooling
Kwik Serv Plumbing Heating and Cooling
4.8(
20
)
Tankless Water Heater - Install

Serving Barrington, IL and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job

Logo
May Special
0% Financing
2 neighbors recently requested a quote
Recommended by52%of homeowners
Avatar for TRIANGLE PLUMBING LLC
TRIANGLE PLUMBING LLC
5.0(
32
)
Tankless Water Heater - Install

Serving Barrington, IL and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

Triangle Plumbing, operated by a seasoned professional, offers comprehensive plumbing solutions for both residential and commercial clients. With years of experience and a commitment to excellence, we provide a full range of services, including installations, repairs, and 24/7 emergency assistance. Combining quality workmanship with competitive pricing, Nathan and his crew ensure customer satisfaction through transparent communication and prompt, efficient service. Contact Triangle Plumbing for expert solutions tailored to your needs and make us your dedicated plumbing contractor to address all your plumbing concerns with precision and care.

Recommended by73%of homeowners
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The Barrington, IL homeowners’ guide to tankless water heater installations

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