How much do tankless water heater services typically cost?
- Walnut, California Average$2,429
- Typical Range$0 - $3,000
- Low End - High End$750 - $5,500

HVAC NEEDS, Plumbing, Performance Air Conditioning , and 1 more
"I recently had the pleasure of working with Authority Plumbing, and I cannot recommend them highly enough. From the outset, they came to my home with a plan that demonstrated their deep understanding of plumbing challenges. Clayton, the technician assigned to my project, was exceptional. He took the time to listen to my concerns and opinions, making sure that I felt heard and valued. He explained each step, ensuring I was comfortable with the plan before proceeding. When a sub-contractor was brought on to streamline the process started making several errors, Clayton quickly took charge of the situation. They fixed these mistakes, alongside resolving my initial drainage issues, at no additional expense, was truly remarkable. The team demonstrated a genuine commitment to ensuring the work was completed to the highest standard. Thanks to their efforts, my plumbing issues have been resolved. I would not hesitate to recommend them to anyone in need of professional plumbing services."
AB684F47244A0CD28AF45256BEB426A4F6473444084C8DE5CE96E4E7803186A5 1. in October 2025
"Wilson was respectful, considerate and clean. He was also punctual, polite and professional.. Pleasant overall experience, Task completed as described."
Michael P. in October 2023
Additions, Upgrades,Remodels, Water, Sewer, and Gas Re-pipes, Tankless, Tank type Water Heaters Installs or Replacements , and 1 more
"Quick to answer and great customer service!"
Jennifer G. in February 2024
plumbing, Plumbing, 10% off for first time customers
"Very professional, always on time. Would hire them again"
Linda S. in December 2022

Drain Clog or Blockage - Clear, Sump Pump - Install - Repair
"I decided to go with this company due to the multiple positive reviews I saw. Jason was one name I saw from the reviews and I was fortunate enough to have him service by needs. I needed a new water heater. Jason really lived up to his and the company's reputation. He was prompt, knowledgeable and thorough, and always provided service with a smile. he took the time to explain what needed to be done, the pros and cons, etc. I had also inquired about a hot tankless system which he also took the time to go over. Overall, I could not be happier with the work that was done. Jason and his partner took the time to inspect my home to ensure everything was in working order before they left. More importantly, they left my garage spotless just like when they first arrived. I would highly recommend Hedrick and Young plumbing to anyone for their plumbing needs. I am so thankful to other people have taken the time to share their experiences. As you can imagine, there are so many companies out there. Often times it's just a shot in the dark. Now with online reviews, it takes the guessing game in the choosing. I hope to my review will be helpful to others."
Dean H. in December 2016

Sewer Camera Inspections and Trenchless Sewer Repair, Certified Tankless W/H Installers - Nortiz, Navien, Rheem and Rinnai, Water Heater Repair and Installation Experts , and 2 more
"Great job...thank you!!!"
Heather L. in December 2020
slab leaks, leak detection, water heaters , and 2 more
"Plumber Matt Hernandez did an excellent job at quickly diagnosing an issue with a water leak from our upstairs shower that caused damaged to our kitchen ceiling downstairs. Matt was able to replace and repair our shower faucet assembly in a timely manner. Would highly recommend him."
Al S. in April 2019
Heating, Cooling, Plumbing , and 2 more
"They were prompt, great turnaround time and recommended repairs in the best interest of my home and budget."
Staci J. in October 2022
Plumbing and gas, Whole house filtration, All leaks (underground, in wall, in slab) , and 2 more
"What I appreciate the most is Anthony is not pushy. He let me know what I need and the cost for additional work I needed."
Nidia F. in November 2023
Walnut Plumbers are rated 4.8 out of 5 based on 1174 reviews of 1174 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.
If you're looking for Tankless Water Heater Install Contractors that serve a different city in California, here are some popular suggestions:
What is the heat source for the water heater?
Find out how HomeAdvisor can help your business