Professional Heat Pump Cylinder InstallationAndover, Marlborough & Hungerford
Expert installation of heat pump compatible hot water cylinders. Specializing in Heat Geek Super, Vaillant uniSTOR, Viessmann Vitocell, and Grant ranges. G3 qualified, working alongside your MCS-certified heat pump installer on £7,500 Boiler Upgrade Scheme projects.
Heat Pump Cylinder Installation Services
Comprehensive installation services for all major heat pump cylinder brands across Andover, Marlborough & Hungerford
Heat Geek Super Cylinder Installation
Professional installation of Heat Geek Super cylinders with industry-leading 6.0m² coil surface area for maximum heat pump efficiency.
- 6.0m² coil surface area
- Optimized for 35-45°C flow temperatures
- G3 certified installation
Vaillant uniSTOR Installation
Expert installation of Vaillant uniSTOR cylinders with 5.2m² coil surface area and industry-leading 25-year warranty.
- 5.2m² coil surface area
- 25-year warranty included
- Premium German engineering
Viessmann Vitocell Installation
Professional installation of Viessmann Vitocell range with 4.5m² coil surface area and German quality construction.
- 4.5m² coil surface area
- Viessmann system compatibility
- Professional commissioning
Cylinder Upgrade & Replacement
Upgrade your existing standard cylinder to a heat pump compatible model for improved efficiency and lower running costs.
- Old cylinder removal included
- Pipework modifications if needed
- Fitted in a day, not spread across a week
System Commissioning & Testing
Professional commissioning of heat pump cylinder systems including safety valve testing, temperature verification, and efficiency optimization.
- G3 compliance testing
- Flow temperature optimization
- Full system documentation
BUS Grant Coordination
We install the G3-certified cylinder and coordinate with your MCS-certified heat pump installer, who administers the £7,500 Boiler Upgrade Scheme grant.
- Works with your MCS installer
- Cylinder supplied & fitted for the grant install
- £7,500 grant via your MCS installer
Grant Cylinder Installation
Professional installation of Grant heat pump compatible cylinders with UK manufacturing quality and excellent reliability.
- UK manufactured quality
- Heat pump compatible range
- Professional installation & commissioning

Expert Heat Pump Cylinder Installation by Will Gaze
As a G3 qualified plumber, I specialize in heat pump cylinder installations across Andover, Marlborough & Hungerford. With extensive experience installing Heat Geek Super, Vaillant uniSTOR, and Viessmann Vitocell cylinders, I ensure your heat pump system operates at maximum efficiency with properly sized and commissioned hot water storage.
G3 Certified
Unvented cylinder specialist
WaterSafe Approved
WRAS-compliant plumbing
22+ Years Experience
Heat pump expertise
Fully Insured
£2M public liability
Heat Pump Cylinder Installation Across Andover, Marlborough & Hungerford
G3 qualified heat pump cylinder installation covering Andover, Marlborough and Hungerford, and the villages between. One plumber, fixed price agreed before the cylinder is ordered.
Andover, Marlborough & Hungerford
SP10, SP11, SN8, SN9 and RG17, based at Wootton Rivers
Fixed Price Before Ordering
Cylinder, labour and any pipework changes priced in writing first
G3 Certified Service
Fully qualified unvented cylinder installation and commissioning
Helpful Heat Pump Cylinder Guides & Tips
Expert advice and comprehensive guides for heat pump hot water systems
Heat Pump Cylinder Guide UK 2025
Complete guide to choosing the right heat pump cylinder. Compare Heat Geek Super (6.0m²), Vaillant uniSTOR (5.2m²), and Viessmann Vitocell (4.5m²) ranges with detailed specifications.
Unvented Cylinder Cost Guide
Comprehensive cost breakdown for unvented cylinder installations including heat pump compatible models. Local pricing with a detailed cost breakdown.
Immersion Heater Troubleshooting Guide
Complete troubleshooting guide for immersion heaters in heat pump cylinders including common issues, diagnostic steps, and when to call a professional.
Frequently Asked Questions
Common questions about heat pump cylinder installation
What makes a cylinder suitable for heat pumps?
Heat pump cylinders need larger coil surface areas (4.5m²-6.0m²) compared to standard cylinders (1.5m²-2.0m²) because heat pumps operate at lower temperatures (35-45°C vs 60-80°C). The larger coil compensates for the lower temperature difference, maintaining fast reheat times and efficiency.
How long does heat pump cylinder installation take?
A complete heat pump cylinder installation typically takes 6-8 hours including removal of the old cylinder, installation of the new unit, pipework modifications, safety valve installation, and G3 compliance testing. Commissioning and final testing takes an additional 2-4 hours the following day.
Can I get the £7,500 BUS grant for cylinder installation?
The £7,500 Boiler Upgrade Scheme grant is available when you install a complete heat pump system including a compatible cylinder. The grant is administered by the MCS-certified installer who fits the heat pump itself. I install the G3-certified hot water cylinder and work alongside your heat pump installer — I'm happy to recommend a trusted MCS-certified installer if you need one.
What's the difference between Heat Geek Super and Vaillant uniSTOR?
Heat Geek Super offers the largest coil surface area (6.0m²) for maximum efficiency with heat pumps, while Vaillant uniSTOR provides 5.2m² coil area with a premium 25-year warranty. Heat Geek is typically better for maximum performance, while Vaillant offers exceptional reliability and warranty coverage.
Do you need G3 certification to install heat pump cylinders?
Yes, absolutely. G3 certification is a legal requirement for installing unvented hot water cylinders in the UK. This includes all heat pump cylinders as they operate under pressure. G3 certification ensures installers understand safety requirements, pressure relief systems, and compliance testing. Always verify your installer holds current G3 certification.
Important Booking Information
Our professional booking system ensures seamless service delivery from first contact to job completion
Your Call Gets Answered
In Your PA answers the landline in office hours, so somebody picks up when Will is under a sink. They take your details and pass them straight through. Will is the one who quotes the job and turns up to do it.
Arrival Windows
We provide time windows rather than exact times to ensure quality work on each job. We'll keep you updated with a more precise ETA.
ServiceM8 System
Our professional job management system provides SMS updates, online booking, and digital job records for a seamless experience.
We Work With Industry-Leading Cylinder Manufacturers
At Rosebourne Plumbing, we exclusively install heat pump cylinders from the world's most respected manufacturers. Heat Geek Super represents the pinnacle of heat pump cylinder technology with 6.0m² coil surface area. Vaillant uniSTOR combines German engineering excellence with an industry-leading 25-year warranty. Viessmann Vitocell offers exceptional build quality and perfect integration with Viessmann heat pump systems.
Heat Geek Super Technology
Maximum efficiency with 6.0m² coil surface area designed specifically for heat pumps
Vaillant Premium Warranty
Industry-leading 25-year warranty on uniSTOR range with German engineering quality
Viessmann System Integration
Perfect compatibility with Viessmann heat pump systems and controls

Ready to Upgrade to a Heat Pump Cylinder?
Get expert G3 certified installation with £7,500 BUS grant support across Andover, Marlborough & Hungerford



