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Find Tankless water heater installers in San Jose

Avatar for Better Water Heaters
Better Water Heaters
4.7(
173
)

Angi Approved

In business since 2001

Free estimates

Emergency services offered

"Better Water Heater installed our tankless water heater incorrectly, creating a significant safety hazard for our tenant, an African American family of 5 with 3 small children. After a contractor from AHS reviewed the installation, they confirmed multiple issues, including code violations and fire risks. Major Problems with the Installation: Unsafe placement in a closet - The condensate has no proper drainage, which could lead to mold, rust, and fire hazards. Improper use of an evaporator pan - This pan is not intended for water heaters, creating a fire risk in an enclosed space. Oversized unit for our home - The Rinnai RU160iN is designed for larger homes. It's far too big for our 1-bed, 1-bath house, making it inefficient. Insufficient gas line - According to AHS, the gas line is too small to support this oversized unit, which could lead to gas flow issues or even pose a fire hazard. The city won't allow this installation to pass inspection because the gas line doesn't meet the required capacity. Permit/code violations - The installation was done without a permit and violates multiple building codes. When we confronted the company, they insisted their work was done correctly. Their "solution"? If we wanted the job to be done legally, we would have to pay for both the permit, their time working with inspectors, and additional costs to fix their mistakes--$995 for a bigger gas line to support the oversized unit. On top of that, they quoted us $585 for permit costs, even though the city building department told us the permit fee is only $150. Bottom Line: If you want a safe, legal, and code-compliant installation, DO NOT trust Better Water Heater. They cut corners, refuse accountability, and expect customers to pay extra to fix their mistakes."
Recommended by90%of homeowners
Avatar for Cupertino Plumbing, Inc
Cupertino Plumbing, Inc
3.0(
2
)

Angi Approved

In business since 2001

Free estimates

Customers say: Quick response

"I had an awful experience with Cupertino Plumbing. The plumber showed up, barely stayed for 15 seconds, and immediately started swearing at me, saying he didn?t care about the job. Completely unprofessional and disrespectful. If this is how they treat customers, I would never recommend them to anyone."
Recommended by50%of homeowners
Avatar for POSEIDON PLUMBING LLC
POSEIDON PLUMBING LLC
4.7(
6
)

Angi Approved

In business since 2014

Free estimates

Warranties offered

"Excellent work completed in less than 24hrs. Wish I?d done my homework for average cost to replace a water heater. $2850 to replace 50 gallon gas water heater seems very steep. "
28 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for The Tankless Guys Plumbing Corp.
The Tankless Guys Plumbing Corp.
5.0(
6
)

Angi Approved

Warranties offered

Customers say: Quick response

"The work was excellent, very cleanly done, great knowledge and helpful information from Gert, the owner of company. Good communication from company. Would work with this business again."
3 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Jeggs plumbing inc
Jeggs plumbing inc
New to Angi

Angi Approved

In business since 2025

Free estimates

Emergency services offered

JEGGS Plumbing Inc. is a licensed plumbing company based in Tracy, CA, providing reliable residential and commercial solutions across the Bay Area and Central Valley. Led by Joel Mendoza Alvarado and backed by over 15 years of experience, the team specializes in a wide range of services including general plumbing, tankless water heater installation, sewer camera inspections, and new construction. The business is built on core values of honesty, punctuality, and quality, ensuring every project features transparent pricing and code-compliant workmanship that stands the test of time. With a track record of over 1,200 completed projects, they are committed to delivering dependable results and 100% customer satisfaction. We are excited to hear from you!

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