Hot water
Unvented cylinder installation
Unvented cylinders give you mains-pressure hot water at every outlet, ideal for larger properties and modern bathrooms. Installation must be carried out and certified by a G3-qualified engineer, which we are.
About this service
What this covers
An unvented cylinder is fed directly from the mains and pressurised, no cold-water tank in the loft, no gravity-fed limitations. The result is strong, balanced hot and cold pressure at every outlet.
Because the cylinder is under mains pressure with a stored volume of very hot water, installation is a G3-notifiable job and involves specific safety components, expansion vessel, PRV, T&P valve and tundish arrangement.
What's included
- Correctly sized cylinder specified from household demand
- G3-compliant install with all safety devices
- Discharge pipework installed to Part G
- Building Control notification
- Full commissioning and handover
How we work
- 1Survey to check mains flow, pressure and location
- 2Written quote with cylinder size and brand
- 3Installation with system flush and pipework upgrades where needed
- 4Commissioning, testing and Building Control paperwork
Suitable for
- Larger family homes and multi-bathroom properties
- Homes upgrading from a vented (loft-tank) system
- Extensions adding new bathrooms
Benefits
- Full mains pressure at every outlet
- No cold-water storage tank in the loft
- Runs multiple showers simultaneously (given adequate mains)
Why homeowners choose us
- Gas Safe registered engineers
- Fully insured
- Tidy, respectful work in your home
- Clear pricing, no surprises
- Warwick & surrounding Warwickshire
Areas we cover
Based in Warwick, working across Warwickshire.
- Warwick
- Leamington Spa
- Kenilworth
- Stratford-upon-Avon
- Warwickshire
Frequently asked questions
Ready when you are
Speak to a Warwickshire engineer
Call, WhatsApp or request a written quote, whichever is easiest.