Experience the Difference
with Better Water
Experience the Difference with Better Water
Experience the Difference
with Better Water
A Company You Can Trust
A Company You Can Trust
Tankless Water Heaters
Explore the various types of tankless water heaters and learn more about how you can benefit by making the switch to tankless.
Water Treatment
Transform your ordinary household water into healthy, pure water with a whole-house water filtration system and a whole-house water softener.
Promos
Check out our latest specials. We also offer a membership program for both tankless water heaters and water filtration systems.
Tankless Water Heaters
Explore the various types of tankless water heaters and learn more about how you can benefit by making the switch to tankless.
Water Treatment
Transform your ordinary household water into healthy, pure water with a whole-house water filtration system and a whole-house water softener.
Promos
Check out our latest specials. We also offer a membership program for both tankless water heaters and water filtration systems.
San Diego Tankless Water Heater Sales, Installation, and Repairs
Serving the Greater San Diego Area Since 1993
Arnett’s Water Systems is proud to be the leading provider of tankless water heaters in San Diego County and the #1 provider of Noritz tankless water heaters in San Diego.
With over 25 years of experience, we’ve built a team that is committed to providing our customers with high-quality water system products and services at a reasonable price. Our locally-owned-and-operated family business has trained, licensed, and insured specialists to provide you with same-day hot water, new tankless water heater installation, water system flushing, water treatment and filtration, recirculation pumps, repair, and annual maintenance.
Arnett’s Water Systems is proud to be the leading provider of tankless water heaters in San Diego County and the #1 provider of Noritz tankless water heaters in San Diego.
With over 25 years of experience, we’ve built a team that is committed to providing our customers with high-quality water system products and services at a reasonable price. Our locally-owned-and-operated family business has trained, licensed, and insured specialists to provide you with same-day hot water, new tankless water heater installation, water system flushing, water treatment and filtration, recirculation pumps, repair, and annual maintenance.
Arnett’s Water Systems continues to maintain a perfect A+ rating by the Better Business Bureau (BBB).
Save on a Tankless Water Heater
Save Money, Energy, and Space, go tankless today!
VIP Membership Program
Save on maintenance by joining our S.T.A.R. membership program. Getting your tankless water heater tuned up once a year protects your investment and keeps it running at top efficiency year-round.
Here’s What Our Customers are Saying!
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These guys are great. Very fair priced and professional. They put in a new unit for us last year and were out to do the annual maintenance. It's was a pleasure doing business again with this company. Bob fillion Coronado 
Bob F.
3/23/2021 - Awesome experience with Arnett's Water Systems! Erik was exceptional and answered all my questions patiently and thoroughly! His crew who did the install were all very professional and got the job quickly and cleanly! It was a very painless process! If you are going tankless, I definitely recommend Arnett's Water Systems!!! I wish I could give them 10 stars!!!!!!!!!!!
Michael D.
2/08/2021 - Arnett's installed my Noritz water heater in 2009, and I haven't thought about it since - until today, when I turned on the hot water and nothing came out. I called Eric, and he was at my house (on a Saturday!) by mid-morning.
He made some adjustments, fixed the problem, showed me how to fix it myself next time, and didn't charge me for the visit. That is exceptional service.
I'd definitely recommend Arnett's to anyone who wants a tankless hot water heater. Doug M.
1/30/2021
Some of Arnett’s Water Systems’ happy clients!
Some of Arnett’s Water Systems’ happy clients!
Get A Free Estimate
Experience the difference with better water at Arnett’s Water Systems! If you’re interested in purchasing a tankless water heater, searching for tankless water heater repair and maintenance services, or you’d like to install a whole-house water filtration system, contact us today for a free estimate and consultation.