Surrey · RH6
Cylinder & Pump (G3) in Horley
Cylinder, pump and unvented hot water system work covers installing or replacing a hot water storage cylinder, fitting a pump to boost pressure to showers or taps, and — where the system is unvented, meaning it's fed directly from the mains rather than a header tank — carrying out the installation and any subsequent work under G3 unvented hot water qualification, which is a legal requirement under the Building Regulations.
In Horley, that covers Massetts, Lonsdale, Smallfield, Horley Row, Westvale Park. Horley sits close to Gatwick Airport, with a historic village core and substantial 20th-century residential development around it, making it a popular area for family homeowners looking to extend rather than move.
Coverage
Areas we cover in Horley for cylinder & pump (g3)
Property styles in Horley
The older village centre includes period cottages and Victorian houses, while the wider town has significant interwar and postwar estate housing well suited to standard rear extensions and loft conversions.
Planning considerations
Reigate & Banstead Borough Council is the local planning authority. Properties close to Gatwick Airport may be subject to airport safeguarding consultation requirements for certain types of development, which we check where relevant.
How it works
Our cylinder & pump (g3) process
- 01
Assessment
Reviewing the existing hot water system, incoming mains pressure and flow rate, and what the household needs from it.
- 02
Specification
Agreeing cylinder size and type, and whether a pump is needed to meet pressure requirements.
- 03
Installation
Fitting the new cylinder or pump, including the safety fittings a G3 installation requires — expansion vessel, pressure and temperature relief valves, and tundish.
- 04
Commissioning and certification
Testing the system and issuing the relevant Building Regulations notification and commissioning certificate for unvented installations.
Also in this area
Other services we provide in Horley
Nearby coverage
Cylinder & Pump (G3) in nearby areas
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FAQs
Cylinder & Pump (G3) in Horley: FAQs
Do you provide cylinder & pump (g3) across all of Horley?
Yes, we cover the RH6 postcode area in full, including Massetts, Lonsdale, Smallfield, Horley Row, Westvale Park.
What does G3 qualified mean and why does it matter?
G3 is the recognised qualification for working on unvented hot water systems, required under Building Regulations Part G because these systems store pressurised hot water and can fail dangerously if the safety devices aren't correctly installed or maintained. Always check an engineer's G3 qualification before unvented cylinder work is carried out.
Does an unvented cylinder need annual servicing?
Yes, and it's usually a condition of the manufacturer's warranty as well as good practice — the safety valves need checking annually by a G3-qualified engineer to confirm they're operating correctly.
Does living near Gatwick Airport affect planning permission in Horley?
Some development types near the airport are subject to safeguarding consultation with the airport operator as part of the planning process. This does not apply to all projects, and we advise on the specific position for your address.
Get a quote for cylinder & pump (g3) in Horley
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Last reviewed 2026-07-28.