Solar Water Heaters

Free heat from the sun, if the system is working.

The Central Valley gets more sun than most of the country, which makes a solar water heater a practical way to cut hot water costs. Solar thermal collectors on the roof heat water or a heat-transfer fluid that feeds a storage tank, and a conventional gas or electric heater backs it up on cloudy days and during heavy use. AccuFlow provides solar water heater repair, service and installation in Lodi, Acampo and nearby towns, including the older systems many homeowners inherited when they bought the house.

Collector Repair

Leaking or damaged roof collectors and connections repaired.

Pumps & Controllers

Circulation pumps, sensors and controllers diagnosed and replaced.

Tanks & Backup Heaters

Storage tanks and backup water heaters integrated and serviced.

System Evaluation

An honest look at whether an older system is worth fixing.

Common solar water heater problems

The most common failures are a circulation pump that stops running, a controller or temperature sensor that fails, leaks at the collectors or roof connections, and stuck valves. The giveaway is usually a backup heater that runs constantly on sunny days, or a pump that isn’t moving when the panels are hot. Many of these are straightforward repairs that bring a system back to full output.

Signs your solar water heater needs service

  • The backup heater runs constantly on sunny days
  • The pump isn’t running when the panels are hot
  • Leaks or staining around roof collectors
  • A blank controller display or error
  • Lukewarm water in summer
  • Noises from the pump or tank

Repair or replace an old system?

If the collectors and tank are sound, replacing a pump or controller is usually worth it. If the system is leaking in several places, the tank is failing, or the roof needs replacing under the collectors, it may make more sense to remove it. We compare the options honestly, including a heat pump water heater, which also uses far less energy than a standard tank.

Solar thermal is not solar panels

Solar water heating uses collectors that heat water directly. Solar electric panels make electricity. They’re different systems, and solar panels can also power a heat pump water heater. See water heater service for all water heater options.

What our solar water heater service includes

Solar Water Heater Installation
Solar Collector Repair
Circulation Pump & Controller Service
Storage Tank & Backup Heater Integration
Valve & Freeze Protection Service
Older System Evaluation

What affects the cost of solar water heater work

  • The failed part: a pump or sensor versus collectors or the tank.
  • Roof access to the collectors.
  • System age: parts for older systems can be harder to find.
  • New installs: collector size, tank and backup heater.

You get the price before any work starts.

What customers say

★★★★★

Mike is amazing business owner with integrity, hard to find now days. Any plumbing needs please reach out to him. If Mike is able to fix your problem he will or he might refer to some one who can.

G
Google Review
AccuFlow Customer
★★★★★

Incredibly fast, reliable and reasonable! thank you Mike and Mikey! great job! kit larson

G
Google Review
AccuFlow Customer

We provide solar water heater service in Lodi, Acampo, Woodbridge, Lockeford, Galt, Stockton, Elk Grove and the rest of our service area.

Why AccuFlow

The details most plumbers skip.

Upfront pricing, always

Every job comes with a firm, agreed-upon number before we start.

Local, not a franchise

We grew up around these streets, not a call center.

Clean job site guarantee

We treat your home like our own, every single visit.

Common Questions

Solar Water Heater FAQs.

Quick answers before you call.

See all FAQs →
Yes, at lower output. On cloudy or cold days the backup heater makes up the difference.
Often, yes. Pumps, controllers and sensors are common repairs. If the system isn’t worth fixing, we’ll tell you.
No. Solar water heaters heat water directly; solar panels make electricity.
Usually the solar loop isn’t circulating: a failed pump, controller or sensor, or air or a leak in the system.
Collectors can last decades; pumps, controllers and tanks need replacing along the way.
For some homes, yes. We compare both based on your roof, usage and costs.

Want the sun to heat your water?

Licensed C-36 Plumbing · C-20 HVAC · B General Building (CSLB #1025946) · Family-owned since 1993 · 4.9★ on Google

Call (209) 330-FLOW Now
AccuFlow Plumbing truck at a customer's home
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Request A Quote

Get A Free Estimate
In Minutes.

Tell us what's going on — we'll follow up fast with a same-day appointment or a flat-rate quote.

We'll follow up fast — usually the same day.

We use these details only to answer this request and schedule service, and we never sell them. Privacy Policy