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

Avatar for Water Heaters Masters
Water Heaters Masters
4.9(
112
)
Tankless Water Heater - Install

Serving Concord, CA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Water Heater Masters were top-notch! I called on a Saturday afternoon - they were available 9am Sunday morning to come and inspect and quote. They only had one guy working that day, but scheduled me for Monday morning between 8 and 9. At 8:15am I got a call with an ETA of 8:45, which was a really nice touch! Despite telling me it would take an entire day to install, they were done by 1pm. They also found some creative ways to do the install to avoid drilling through my stucco (for the exhaust vent and for the condensate run-off). Very professional and clean-looking install. These guys may not always be the cheapest around, and they recommended a top-of-the-line heater (which is what I really wanted anyway), but I'd much rather pay a little extra for that level of service and support. Thank you!"
Additional Photos
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+20

Response time9 hrs
Recommended by94%of homeowners
Avatar for Tankless Plumbing Solutions
Tankless Plumbing Solutions
4.9(
34
)
Tankless Water Heater - Install

Serving Concord, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Tony came out for a bid and was on time and explained what was needed. I hired him to do install a Navien Tankless system. He and Eric, his helper, arrived on time, worked diligently, and completed the job in one day. My friends warned me not to leave the house while this 'stranger' but I had an errand to run and was away from the house for a couple hours. Returned to find nothing missing and the guys working hard to install the system. Before leaving when the installation was complete, Tony showed me use of the controls and made sure the system was working. Tony was able to fix a couple things that could cause problems for me, such as a clogged 20 year old faucet (he removed the dirt that had accumulated). I would recommend him to friends who were switching to a tankless water heater."
Rinnai
Rinnai
Rinnai
Rinnai
Rinnai

+10

Response time4 hrs
Response rate97%
6 neighbors recently requested a quote
Avatar for Beaver's Construction Company
Beaver's Construction Company
4.5(
170
)
Tankless Water Heater - Install

Serving Concord, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1976

Free estimates

Credit card accepted

"I know it’s rare to give all excellent but it’s the truth. Dan at Beavers was so responsive and professional. I had an hybrid water heater installed which involved a learning curve; Dan made sure we were educated and understood how it operated. The city inspector gave a 5* Plus rating on the install. He’s a full contractor - I’ll use him for other projects!"
Response time7 hrs
Response rate100%
Recommended by94%of homeowners
Avatar for All Water Heaters & Plumbing LLC
All Water Heaters & Plumbing LLC
4.4(
204
)
Tankless Water Heater - Install

Serving Concord, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1997

Free estimates

Emergency services offered

"I don't know enough to compare (dollarwise) the tankless water heater I purchased to others in the market. I can say it's an impressive piece of equipment and is providing my desired level of service. I now have hot water throughout my home in seconds! AND, Dave impressed me immediately as a sound, honest, energetic business man and technician. In no time he and Carl were at my house doing the work I desperately needed. It was dark when they finished but they lived up to their word in fixing my hot water problem "today"!"
Noritz Tankless
Noritz Tankless
Noritz Tankless
Rinnai Tankless
Rinnai Tankless

+20

Response time7 hrs
Response rate87%
166 neighbors recently requested a quote
Avatar for Cali Water Heater & HVAC
Cali Water Heater & HVAC
4.8(
33
)
Tankless Water Heater - Install

Serving Concord, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Small jobs welcome

"I was given a fair quote for an on-demand water heater. The 2 other companies were either, way overpriced or were charging sales tax on their labor. The project was done in a timely manner. Dave was polite and professional. I wish the clean-up of sediment from the old standard water heater had been cleaned up. It was left for me."
Response time6 hrs
Response rate94%
57 neighbors recently requested a quote
Avatar for Just In Time Water Heaters
Just In Time Water Heaters
4.9(
9
)
Tankless Water Heater - Install

Serving Concord, CA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"I called Just In Time Water Heaters and the technician arrived in 1 hour from my call. The technician did an excellent job on the installation of my new water heater. He complied with the applicable building codes to the letter. He explained the operation of the system and answered all my questions. I would highly recommend Just In Time Water Heaters."
Water Heater Repair - Defective Damper Switch
Tankless Install
Expansion Tank
New water heater
New Installation

+9

Recommended by62%of homeowners
Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.4(
722
)
Tankless Water Heater - Install

Serving Concord, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"The first visit lead to cleaning the area around the heater and burners and checking the thermocouple. Sadly that seemed to make it worse. Less than a week later No hot water for over 30 hours till the second technician replaced the thermocouple. All is perfect now. No charge for the second visit. The next step, if needed will be a tankless and their quote looks a bit steep. But I am really hoping I won’t need to go that far."
Living room Mini-Split
Aquasana home Filtration
Almost no disturbance at EBMUD meter
Navien with filtration to protect the heat exchanger
New house valve and Pressure Reducing Valve

+73

Response time8 hrs
Response rate100%
44 neighbors recently requested a quote
BCMN
4.6(
111
)
Tankless Water Heater - Install

Serving Concord, CA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

Friends and family Plumbing and Drain Cleaning, (DBA BCMN) is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

Recommended by75%of homeowners
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