Hot water cylinders
Unvented and vented hot water cylinders installed, replaced and repaired, plus immersions, valves and annual unvented checks, by our own engineers.
What we do
- Unvented cylinder installs and swaps
- Vented and gravity cylinder replacements
- Immersion heaters and thermostats
- Pressure and temperature relief valves
- Expansion vessels recharged or replaced
- No hot water and leak repairs
- Annual unvented cylinder checks
- Upgrades to higher-capacity cylinders
Who it’s for
Plenty of hot water at good pressure.
Cylinder repairs and replacements in rental flats and houses.
Hot water for offices, shops and staff facilities.
How it works
- Tell us what you needCall, email or use the quote form. Photos or a short video help us price it quicker.
- Clear, written quoteMost jobs priced from photos or video. Larger projects get a site visit.
- Booked and doneLive tracking so you know when your engineer is on the way. Our own team, on time.
- Paperwork sortedBefore and after photos, certificates and your invoice, all sent together.
Good to know
→Our own engineers, a clear written price before we start, and photos and certificates when the job is done.
Areas we cover
Related services
What customers say
“Punctual, friendly, honest and well priced.”
“The team at Positive are incredibly thorough, quick to respond to any queries and always so helpful with any last minute emergencies. We use them regularly for a variety of trades.”
“Issue resolved speedily, and reasons for issue were well explained. Great communication from the team, both in advance and on the day.”
Common questions
What is an unvented cylinder?
An unvented cylinder runs at mains pressure, so showers and taps are stronger, and it does not need a cold water tank in the loft.
Do unvented cylinders need servicing?
Yes. Manufacturers recommend an annual check of the safety valves and expansion vessel to keep it safe and keep the warranty valid.
My immersion heater has stopped working. Can you fix it?
Yes. We test the element and thermostat and replace whichever has failed.
Can you replace a cylinder in a flat?
Yes. We replace cylinders in flats and houses and arrange access through landlords and agents if needed.
How long does a cylinder replacement take?
A like-for-like swap is usually done in a day.
Need help with hot water cylinders? Let’s get it sorted.
Tell us what you need and you’ll get a clear, written price back.
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