Diagnostics
We test collectors, sensors and temperatures to find why your system isn't heating.
Solar water heating
Older solar hot water systems often lose output slowly. We find the cause, fix it and tell you plainly what's worth repairing.

What we do
We test collectors, sensors and temperatures to find why your system isn't heating.
Replacement or repair of worn circulation pumps and failed control units.
We trace leaks, replace valves and restore pressure in collector loops.
We check the safeguards that stop damage during cold snaps and hot summer afternoons.
Connecting your solar loop to a new or existing hot water tank correctly.
When a system is beyond repair, we remove it safely and cap the plumbing.
Warning signs
Many problems build quietly. You may only notice that the water isn't as hot as it used to be, or that your power bill creeps up.
If you see any of these, call us before a small fault becomes an expensive one.

Common questions
Yes. We work on most solar water heating systems regardless of who fitted them.
Often, yes. A pump or valve is cheap to fix. We'll say so if collectors or tanks are past saving.
Most diagnostics take one to two hours. Repairs vary, and we confirm the price in writing first.
Yes. They use separate roof space and plumbing, and we can service them together.

Book a service visit and we'll find the fault, explain your options and quote in writing.
This is a demo site, not an actual production website.
Harborlight assistant
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