Modern households and commercial properties demand consistent, high-pressure hot water delivery throughout kitchens, bathrooms, and utility areas. For property owners in Wiltshire looking to upgrade their hot water systems, an unvented hot water system offers the ideal solution—providing balanced, mains-pressure hot water without the need for a cold water storage tank.
At Philip Cheeseman & Sons Plumbing and Heating Ltd, we specialise in the professional supply, installation, and servicing of unvented hot water systems in Wiltshire. Our fully qualified, experienced team ensures every installation is safe, compliant, and designed for optimum performance, delivering reliable hot water on demand throughout your property.
What Is an Unvented Hot Water System?
Unlike traditional vented systems that rely on gravity-fed cold water tanks in the loft, an unvented hot water system connects directly to the mains supply. Water is stored under pressure in an insulated cylinder and heated by your boiler or immersion heater. This system delivers mains-pressure hot water to all outlets, resulting in strong, consistent flow rates ideal for modern showers, baths, and kitchens.
Key Benefits of Unvented Hot Water Systems
1. Mains Pressure Performance
Unvented systems provide high-pressure hot water throughout your property, offering strong shower flow without the need for pumps.
2. Flexible Installation Locations
Because there is no need for a cold water storage tank in the loft, cylinders can be installed in airing cupboards, garages, or utility rooms.
3. Hygienic, Enclosed System
The sealed design reduces the risk of contamination compared to open vented tanks, providing clean, safe hot water.
4. Balanced Hot and Cold Water
Mains-fed systems maintain consistent, balanced pressure for both hot and cold outlets, making them ideal for mixer taps and thermostatic showers.
5. Energy Efficiency and Heat Retention
Modern unvented cylinders feature high levels of insulation, keeping water hot for longer and reducing heating costs.
Why Choose Professional Installation?
Unvented cylinders operate under significant pressure and are subject to UK Building Regulations, including Part G3. As such, they must be installed and serviced by G3-qualified engineers to ensure safe operation, proper pressure relief, and compliance with legal requirements.
At Philip Cheeseman & Sons Plumbing and Heating Ltd, our engineers are fully certified and experienced in installing, commissioning, and maintaining unvented systems. This ensures:
- Safe installation with all required safety valves and expansion controls
- Correct system sizing for your property’s demands
- Regulatory compliance and Building Control certification
- Manufacturer warranty protection
Failure to use a qualified installer not only risks safety but can invalidate warranties and insurance cover.
Our Unvented Hot Water System Installation Process
We deliver a comprehensive, professional service to ensure each installation is tailored to your property’s needs:
1. Property Survey and Assessment
We assess your existing hot water system, water pressure, heating source, and property layout to confirm suitability and specify the ideal cylinder size.
2. System Design and Quotation
Our team designs a bespoke solution, selecting the appropriate cylinder type and capacity to meet your hot water usage. We provide clear, itemised quotations with no hidden costs.
3. Installation by Qualified Engineers
We carry out all installation work to the highest standards. This includes connecting the mains supply, integrating with your boiler or immersion heater, fitting safety controls, and ensuring correct expansion arrangements.
4. Commissioning and Certification
Your system is rigorously tested and commissioned, and we provide all necessary documentation for Building Control compliance.
5. Customer Handover and Guidance
We ensure you understand how your new system operates, offer usage tips for maximum efficiency, and explain servicing requirements.
Unvented Cylinder Brands We Trust
We supply and install high-quality cylinders from leading manufacturers including:
- Megaflo
- Gledhill
- Worcester Bosch Greenstore
- Vaillant
These products are renowned for reliability, energy efficiency, and excellent warranty support.
Ideal Properties for Unvented Systems
Unvented hot water systems are suitable for a wide range of properties across Wiltshire, including:
- Modern homes with multiple bathrooms
- Houses undergoing renovations or extensions
- New builds seeking high-spec plumbing solutions
- Commercial properties requiring reliable hot water delivery
Whether upgrading an old vented system or specifying new-build services, we ensure your unvented installation is fit for purpose.
Why Choose Philip Cheeseman & Sons in Wiltshire?
With decades of experience serving Melksham, Chippenham, Trowbridge, Westbury, Bath, and beyond, we are trusted by homeowners, landlords, and developers alike. Clients choose us for our:
- Fully qualified, G3-certified installers
- Transparent, competitive pricing
- Exceptional workmanship and attention to detail
- Friendly, reliable, and punctual service
- Comprehensive post-installation support and servicing
Our reputation is built on honest advice, clear communication, and a commitment to the highest professional standards.
Service Areas
Based in Melksham, we offer unvented hot water system installation throughout:
- Chippenham
- Trowbridge
- Corsham
- Westbury
- Bath
- Wiltshire villages and rural properties
We take pride in serving local communities with reliable, high-quality plumbing and heating solutions.
Contact Us for Unvented Hot Water System Installation in Wiltshire
Upgrade your property’s hot water delivery with a professional, compliant installation by Philip Cheeseman & Sons Plumbing and Heating Ltd.
📞 Phone: 01225 705626
📧 Email: info@cheesemanplumbing.com
📍 Address: 2 Marti Close, Melksham, SN12 7JA
Contact us today to arrange a survey and quotation.