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

Avatar for All Water Heaters & Plumbing LLC
All Water Heaters & Plumbing LLC
4.4(
204
)
Tankless Water Heater - Install

Serving Nicasio, 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%
165 neighbors recently requested a quote
Avatar for Cali Water Heater & HVAC
Cali Water Heater & HVAC
4.8(
33
)
Tankless Water Heater - Install

Serving Nicasio, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Small jobs welcome

"Cali Water Heaters & HVAC were terrific. Mr. Fuller was easy to work with and did a great job installing our new water heater. The price was fair and the whole job was done very quickly. I would definitely recommend Cali Water Heaters & HVAC."
Response time6 hrs
Response rate94%
56 neighbors recently requested a quote
Avatar for DOKE'S PLUMBING HEATING & COOLING
DOKE'S PLUMBING HEATING & COOLING
5.0(
5
)
Tankless Water Heater - Install

Serving Nicasio, CA and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

DOKE'S PLUMBING HEATING & COOLING is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands-on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

AC System
Testing
Water Heater
Water Heater Install
Heat Pump

+13

53 neighbors recently requested a quote
Avatar for Green Core Heating & Air
Green Core Heating & Air
5.0(
8
)
Tankless Water Heater - Install

Serving Nicasio, CA and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"Huge shoutout to the team for an outstanding AC installation! From start to finish they were professional, punctual, and extremely knowledgeable. The installation was clean, efficient, and they took the time to explain everything before leaving. You can tell they really take pride in their work. Highly recommend them to anyone needing reliable HVAC service!"
Air Conditioning Install
Harvest Thermal
Harvest Thermal
7 neighbors recently requested a quote
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Showing 1-10 of 73

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