How much do tankless water heater services typically cost?
- Castro Valley, California Average$2,698
- Typical Range$0 - $5,000
- Low End - High End$650 - $5,900

Plumbing
"As part of a major kitchen renovation I hired Harry to do a complete re-pipe of the all the gas lines in the house. This included increasing the pipe sizes from 3/4" to 1" and 1/2" to 3/4" to provide proper gas pressure to the new and existing appliances. He also installed a seismic shutoff valve that was required by the building inspection department. Harry knows his stuff and was easy to work with. He did a good job and completed it on time. I'm very satisfied with the quality and the price of his work and I will gladly recommend him."
Jim P. in January 2020
Plumbing
"Pedro is professional, patient and prompt. His skill level is top notch. I'd rehire him in a second."
Rolanda B. in December 2018

Emergency Service, Plumbing
"I had 2 control valves replaced with short notice. I am usually a DIY homeowner, but very happy that I found this pro to complete this job quickly and well done."
Gary D. in December 2020

$150 Off Water Heater Replacements, 100% Customer Satisfaction Guaranteed, Life-time warranty on Repipes & Main Line Replacements , and 7 more
"Had my water heater replaced. Great service, great techs, and awesome deal. Price was exactly as agreed upon, no upselling pressure. Would absolutely recommend!"
336C89BC7193DCD8CB0813A2D27332613E9D9E00A5F3483FC6B838CA8AA6C5C8 E. in December 2025
Castro Valley Plumbers are rated 4.8 out of 5 based on 804 reviews of 804 pros.
The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.
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