Solar Hot Water Systems
Repairs & Servicing
Boosters not firing? Panels leaking? Collector issues? We diagnose and repair all solar hot water systems across Sydney's Eastern Suburbs — same-day service available.
"Solar booster stopped working in the middle of winter. They diagnosed a faulty element and had it sorted the same afternoon. Knew exactly what they were doing."
Highline or Lowline — We Service Both
Solar hot water systems come in two main configurations. Understanding which type you have helps us diagnose problems faster.
☀️ Highline (Thermosiphon)
The storage tank sits on the roof directly above the solar collectors. Hot water rises naturally — no pump needed. Simple and reliable, but the tank is exposed to the elements and can corrode over time.
🏠 Lowline (Split System)
The tank is on the ground and a circulation pump moves water between the tank and roof collectors. More complex but easier to access for servicing, and the tank is protected from weather.
🌡️ Evacuated Tube Collectors
Glass vacuum tubes that absorb heat more efficiently than flat panels, especially on cooler or overcast days. Individual tubes can be replaced without removing the whole collector array.
Solar Hot Water Problems We Fix
Solar systems have more components than standard systems — more to go wrong, but most faults are straightforward to fix.
Booster Not Working
The electric or gas booster keeps you in hot water on cloudy days. A failed booster element or thermostat leaves you cold — we replace them on the spot.
Leaking Collectors or Tank
Roof-mounted tanks and collectors are exposed to UV and weather. We inspect, reseal or replace corroded components and worn collector connections.
Circulation Pump Failure
On lowline systems, a failed pump means cold water sits in the collectors and never reaches the tank. We test, replace and prime the pump on the same visit.
Controller or Sensor Faults
The differential controller compares roof and tank temperatures to decide when to run the pump. A faulty sensor or controller causes the system to run at the wrong times — or not at all.
Frost Protection Issues
Some systems use a glycol loop to protect collectors from freezing. Degraded glycol stops protecting the system — we test fluid condition and replace when needed.
Broken Evacuated Tubes
Individual glass tubes crack over time. A cracked tube reduces efficiency significantly. We replace individual tubes without disturbing the rest of the array.
How We Work
Solar systems need someone who understands the whole system — collectors, pump, controller and booster. That's what we bring.
Call or Book Online
Phone 02 9344 6602 or book online. Tell us what's happening and we'll come prepared with the right parts.
Full System Check
We inspect the collectors, pump, controller, sensors, booster and tank — not just the obvious fault. You get an upfront quote before we start.
Repair on the Spot
Most solar repairs are completed in one visit. We carry common parts for all major brands in the van.
System Verified
We confirm the system is circulating correctly and the booster is operational before we leave. No half-fixes.
All Major Solar Hot Water Brands
We service every major solar brand installed across Sydney's Eastern Suburbs.
Rheem Solar
Rheem's solar range includes both flat panel and evacuated tube systems. We carry Rheem booster elements, thermostats and pump kits.
Solahart
One of Australia's most recognisable solar brands. We service Solahart highline and lowline systems and stock common replacement parts.
Chromagen & Stiebel Eltron
European-engineered systems with excellent efficiency. We're experienced with their controllers and evacuated tube collectors.
Dux Solar & Others
We also service Dux, Edwards, Thermann, Hills Solar and all other brands you'll find on Eastern Suburbs rooftops.
Solar System Not Performing?
Don't wait for the problem to get worse. Call us for a same-day diagnosis across Sydney's Eastern Suburbs.
Solar Hot Water Questions
Why am I getting cold water even though I have solar?
The most common reasons are a failed booster element, a faulty circulation pump, a broken controller or a period of overcast weather with no boost backup. We'll work through each cause on site.
What's the difference between highline and lowline solar?
Highline systems have the tank on the roof — water circulates by gravity with no pump. Lowline systems have the tank on the ground and use a pump to circulate water. Lowline systems are easier to maintain but have more components that can fail.
Can you replace just one evacuated tube?
Yes — individual tubes can be replaced without removing the whole collector. We carry common tube sizes in the van for most brands.
How often should a solar hot water system be serviced?
We recommend a check every 3–5 years — inspecting the anode, pump, collector connections and controller settings. Regular servicing catches small issues before they become expensive ones.
My solar system is old — is it worth repairing or should I replace it?
If the collectors are in good condition and it's just a booster or pump issue, repair is almost always the better value. If the tank is corroding or the collectors are badly degraded, we'll give you an honest assessment on whether replacement makes more sense.