Water Heaters Only, Inc provides San Jose with residential gas and electric, commercial gas and tankless gas water heater service. Founded in 1968, we are a highly rated local water heater service company. Our work comes with a guarantee and we will meet or beat a competitors’ onsite bid for a similar product and scope of work. Water Heaters Only, Inc offers financing programs and does not charge extra for weekend or Holiday service. With our length in business and high customer rating, Water Heaters Only, Inc is considered an expert in the industry. Call to speak with a friendly water heater expert 24/7/365. Our water heater experts can help to turn off a leaking water heater, discuss common problems or schedule an appointment.
Technicians consistently demonstrated professionalism, knowledge, and efficiency during installations and repairs.
Customer Service
Customers appreciated the friendly and responsive customer service, with many noting the ease of scheduling and communication.
Quality of Work
The installation and repair work was frequently described as thorough, clean, and completed in a timely manner.
Pricing Concerns
Some customers expressed dissatisfaction with pricing transparency, particularly regarding service fees and warranty issues.
CH
Cristine Hartke
3 days ago
5.0
Alex Buenrostro installed our new tankless water heater, and we couldn’t be happier with his work. Our old unit needed to be replaced, and Alex was incredibly professional, polite, and friendly throughout the entire process. He clearly explained what was wrong with the old unit and why a replacement was necessary.
He provided a quote and completed the installation the very same day. Afterward, he walked me through every component he installed—everything included in the quote—and showed me the repiping work he did for the gas line. He also hauled away the old unit, leaving everything clean and tidy.
When I later noticed low water pressure, I called Alex, and he returned to our home immediately. He diagnosed the issue as sediment buildup restricting flow, then cleaned the kitchen faucet and showerhead and checked every faucet and shower in the house to ensure the pressure was perfect before he left.
Alex did an outstanding job installing our new unit, and it’s clear he genuinely cares about his clients. If you need any work done on your water heater, I highly recommend hiring Alex Buenrostro. He is thorough, reliable, and makes sure the job is done right.
JT
Jean Teramoto
6 days ago
5.0
Water Heaters Only is the best. I called at 7:00 am. They showed up at 10:30. Loni showed up and changed our water heater in 2 hours. He was very good. He explained what was wrong, what he was doing and how everything worked. He is highly recommended.
AS
Alexey Supikov
Jan 5, 2026
5.0
Very fast service (new heater was up and running next day after late evening Saturday call). Little bit on a pricier side but it was Sunday. Installation was professional, permit included in the price. Technician, Will, was efficient, knowledgeable and courteous.
DH
Debra Hiraki
Jan 2, 2026
5.0
My old water heater died on New Year’s Day. I called this company because of their experienced staff. Alex was terrific in replacing my gas water heater. He came earlier than the window given (after letting me know). He worked efficiently, keeping the house clean and protected. He worked without a break and working very efficiently. He answered all my questions and I appreciated his attention to detail and suggestions. Great experience!
AT
Alex T
Dec 25, 2025
5.0
Loni and his assistant were professional, on time, and easy to work with. They clearly explained the process, did a great installation, and left the area spotless. Thanks !
Frequently Asked Questions About Water Heaters Only, Inc
What types of water heaters does Water Heaters Only, Inc service?
We service residential gas and electric, commercial gas, and tankless gas water heaters.
What are your business hours?
We are open 24/7 every day of the week, including weekends and holidays, by appointment only.
How long has Water Heaters Only, Inc been in business?
We have been providing water heater services since 1968, establishing a strong reputation in San Jose.
Do you offer any guarantees or price matching for your services?
Yes, our work comes with a guarantee and we will meet or beat a competitor's onsite bid for a similar product and scope of work.
What payment options do you accept?
We accept American Express, Discover, MasterCard, Visa, checks, and offer financing programs.
Can I schedule a water heater service appointment on weekends or holidays?
Yes, we offer service 24/7 including weekends and holidays, with no extra charge, by appointment only.
How can I contact Water Heaters Only, Inc for emergency water heater help?
You can call our expert team 24/7 at +1 (408) 279-8899 or email help@waterheaters-sanjose.com.
What brands of water heaters do you offer?
We offer brands including Bradford White, Noritz, Navien, American Standard, Rheem, Rinnai, and A. O. Smith.
Are there any nearby businesses related to home improvement if I want additional services?
Yes, nearby home improvement-related businesses include Bellas Flooring (carpet and contractor services), Builtwell Marble and Granite, and South Bay Marble for home improvement projects.
What local businesses can I visit nearby for kitchen or remodeling services?
Nearby options include Farcon Builders, Inc. and Farcon Builders Inc, specializing in kitchen remodeling and construction services.
Is there a place nearby where I could enjoy a meal or relax after visiting Water Heaters Only, Inc?
Yes, you can visit Grill 'Em Pizza and Sports Bar nearby for pizza, drinks, and a casual dining experience.