Our Services
Hot Water Cylinders
Supply and installation of G3-qualified unvented hot water cylinders to deliver mains-pressure hot water across Sevenoaks and surrounding Kent.
About This Service
Professional Hot Water Cylinders Across Sevenoaks
Using G3-qualified unvented cylinders, high‑spec pressure relief valves, expansion vessels and manufacturer‑approved insulation, Pro Plumbers Ltd fits mains‑pressure hot water systems to Kent homes. Our Worcester- and Vaillant-accredited engineers size and configure cylinders for period Sevenoaks cottages, new builds and rural oil‑heated properties. Installations include full commissioning, Building Regulations certification and a one‑year workmanship guarantee. We provide written handover notes and system documentation on completion.

190 Five-Star Reviews
Our Process
How It Works
Site survey & sizing
A G3-qualified engineer inspects your property, checks incoming mains pressure, bathroom count and pipe runs, then recommends the correct cylinder type and capacity.
Supply & professional fit
We install the cylinder using high-spec pressure relief valves, expansion vessel and manufacturer-approved insulation, working to Building Regulations and industry best practice.
Commissioning & certification
Full commissioning, test records and Building Regulations notification (where required) are completed and handed to you, plus our one-year workmanship guarantee.
Benefits
Why Choose us for Hot Water Cylinders?
True mains-pressure performance
Unvented cylinders deliver powerful showers and steady flow to multiple outlets without pumps — ideal for homes with more than one bathroom.
G3-qualified engineers & OFTEC/Gas Safe coverage
All installs are carried out by G3-qualified staff; Gas Safe and OFTEC registrations mean we can work on both gas and oil-fed systems common in rural Kent.
Certified, backed work
Every installation is fully commissioned to Building Regulations, supplied with paperwork and a one-year workmanship guarantee for peace of mind.
What we fit
We supply and install modern unvented (G3) hot water cylinders and compatible indirect cylinders with high‑grade pressure relief valves, expansion vessels and insulation. These systems remove the need for a loft cold tank, freeing up space and reducing frost and tank‑maintenance risks. Engineers size cylinders to the property and the connected boiler — our Worcester and Vaillant accreditation helps when matching controls on compatible boilers.
Why choose Pro Plumbers in Sevenoaks
Our local team understands Kent properties — from Victorian terraces to rural oil‑heated cottages — and we offer OFTEC and Gas Safe capability for mixed‑fuel projects. Installations include full commissioning, Building Regulations certification and a clear handover with maintenance advice. For emergencies or unexpected faults after install, call 01732 444555 or email info@proplumbersltd.com.
FAQ
Frequently Asked Questions
Vented systems use a cold water tank in the loft and rely on gravity, giving lower pressure. Unvented (G3) cylinders connect to the mains and provide mains‑pressure hot water to showers and multiple outlets. Unvented systems require a G3-qualified installer and pressure safety devices.
Related Services
Other Services We Offer
REVIEWS
What Our Customers Say
— Dimitar M
— Tom Lunn
— Riannon Mato






