
Professional Vented & Unvented Hot Water Systems
From endless hot water with unvented systems to reliable vented cylinders, we'll recommend and install the perfect solution for your home's needs and water pressure.
Reliable Hot Water Systems for Your Home
Whether you need a new hot water system or repairs to your existing cylinder, our Gas Safe registered engineers provide comprehensive solutions across Berkshire, Surrey and surrounding areas. With over 25 years of experience, we understand the importance of reliable hot water for your family's comfort.
How It Works
Hot Water System Installation
Professional installation of vented and unvented hot water cylinders with proper sizing, pipework, and safety systems. We handle all Building Control notifications and provide comprehensive warranties.
Emergency Hot Water Repairs
Rapid response for hot water system breakdowns including cylinder leaks, thermostat faults, and pressure vessel issues. Same-day repairs where possible to restore your hot water quickly.
System Upgrades & Conversions
Upgrade from vented to unvented systems for better pressure, or replace old cylinders with more efficient models featuring improved insulation and faster recovery times.
Certified & Trusted Hot Water Engineers
Your safety is our priority - fully accredited professionals

Gas Safe Register

RECC

MCS
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APHC Member

Trusted by TrustATrader
All our hot water work is carried out by Gas Safe registered engineers with comprehensive industry accreditations. We maintain the highest safety standards and comply with all current regulations for your complete peace of mind.
Complete Hot Water System Solutions
Our comprehensive hot water services cover every aspect of both vented and unvented systems. From urgent emergency repairs to planned installations and ongoing maintenance, we provide reliable solutions tailored to your specific needs and budget.
How It Works
Vented Hot Water Systems
Traditional gravity-fed systems with cold water tank in the loft. Ideal for homes with low mains pressure or older plumbing systems. Professional installation and maintenance services available.
Unvented Hot Water Systems
High-pressure systems fed directly from mains water supply. Perfect for powerful showers and multiple outlets running simultaneously. Requires annual safety checks and proper installation.
System Upgrades & Conversions
Upgrade from vented to unvented for better pressure, or replace old cylinders with more efficient models. Includes pressure improvement solutions and energy efficiency upgrades.
Emergency Repairs & Maintenance
Expert diagnosis and repair of all hot water system problems including cylinder leaks, thermostat faults, and pressure vessel issues. 24/7 emergency callouts available.
Annual Service & Safety Checks
Comprehensive annual services for unvented systems including safety valve testing, expansion vessel checks, and temperature control verification. Essential for warranty compliance.
Building Control Compliance
We handle all Building Control notifications for unvented hot water systems, ensuring full compliance with current regulations and safety standards.

Why Choose BNA for Your Hot Water System Needs?
Experience the difference of working with trusted local hot water experts
Gas Safe Registered Engineers
All our engineers are Gas Safe registered and regularly updated on latest regulations and safety standards for complete peace of mind.
Rapid Emergency Response
Same-day emergency call-out service with experienced engineers carrying diagnostic equipment and common spare parts for immediate repairs.
10-Year Installation Warranties
Comprehensive warranties on new hot water system installations backed by manufacturer guarantees and our commitment to quality workmanship.
Transparent, Fair Pricing
No hidden costs or surprises. Clear upfront pricing with detailed quotes and flexible payment options for larger installations.
25+ Years Local Experience
Established family business with deep local knowledge and over 1000 satisfied customers across Berkshire, Surrey and surrounding areas.
Comprehensive Aftercare
Ongoing support with annual servicing, maintenance plans, and priority customer status for any future hot water needs.

How We Deliver Professional Hot Water Services
Our structured approach ensures every hot water installation or repair is completed to the highest standards with minimal disruption to your daily routine. Clear communication and professional workmanship every step of the way.
Initial Consultation
Free consultation to assess your hot water needs, property requirements, and budget. Site survey for installations with detailed recommendations and transparent pricing.
Detailed Quote & Planning
Comprehensive written quote with full breakdown of costs, timeline, and specifications. No pressure sales - take time to consider our recommendations.
Scheduled Installation
Agreed installation date with clear arrival times. All materials and equipment brought to site with full preparation and safety briefing.
Professional Installation
Expert installation by Gas Safe registered engineers. Complete system commissioning, safety testing, and performance verification to manufacturer standards.
Quality Inspection & Handover
Thorough system testing and customer demonstration. All certification provided with warranty documentation and aftercare guidance.
Ongoing Support
Annual service reminders, priority customer support, and extended warranty protection for complete peace of mind and optimal performance.
Initial Consultation
Free consultation to assess your hot water needs, property requirements, and budget. Site survey for installations with detailed recommendations and transparent pricing.
Detailed Quote & Planning
Comprehensive written quote with full breakdown of costs, timeline, and specifications. No pressure sales - take time to consider our recommendations.
Scheduled Installation
Agreed installation date with clear arrival times. All materials and equipment brought to site with full preparation and safety briefing.
Professional Installation
Expert installation by Gas Safe registered engineers. Complete system commissioning, safety testing, and performance verification to manufacturer standards.
Quality Inspection & Handover
Thorough system testing and customer demonstration. All certification provided with warranty documentation and aftercare guidance.
Ongoing Support
Annual service reminders, priority customer support, and extended warranty protection for complete peace of mind and optimal performance.
Why Choose Professional Hot Water Systems?
Modern hot water systems provide reliable, efficient hot water with improved pressure and energy efficiency benefits for your property.
What Our Hot Water System Customers Say
Real experiences from satisfied customers across Berkshire and Surrey
"BNA Plumbing installed our air source heat pump and the service was outstanding. Professional, punctual, and the system is working perfectly. Highly recommend their renewable energy expertise!"
Sarah Mitchell
Reading
Excellent heat pump installation service
"Had our new gas boiler installed by BNA Plumbing. The team was professional, clean, and completed the work on time. Great value for money and excellent customer service throughout."
James Thompson
Bracknell
Professional boiler installation
"Called BNA Plumbing for an emergency leak on a Sunday. They responded quickly and fixed the issue professionally. Fair pricing and excellent service - will definitely use again."
Emma Wilson
Windsor
Reliable emergency plumbing service
"BNA Plumbing handled our entire bathroom renovation including plumbing, heating, and installation. The workmanship is excellent and they kept us informed throughout the process. Very satisfied!"
Michael Brown
Maidenhead
Complete bathroom renovation
"Had underfloor heating installed in our new extension. BNA Plumbing's expertise in renewable heating solutions really shows. The system is efficient and the installation was flawless."
Lisa Davis
Slough
Underfloor heating installation
"What impressed me most about BNA Plumbing was their transparent pricing - no hidden costs or surprises. The work was completed to a high standard and they cleaned up after themselves. Top service!"
David Roberts
Guildford
Transparent pricing and great service
"BNA Plumbing installed new kitchen plumbing and heating system. The team was knowledgeable, friendly, and completed the work efficiently. Great attention to detail and quality workmanship."
Rachel Green
Basingstoke
Kitchen plumbing and heating
"Used BNA Plumbing for our new build project. Their experience with new construction really shows - everything was installed correctly first time. Professional service from start to finish."
Mark Taylor
Woking
New build plumbing services
"Had air conditioning installed by BNA Plumbing. The installation was professional and the system works perfectly. Great communication throughout and competitive pricing. Highly recommended!"
Jennifer White
Ascot
Air conditioning installation
"BNA Plumbing upgraded our entire heating system including boiler, radiators, and controls. The team was professional, punctual, and the new system is much more efficient. Excellent service!"
Peter Anderson
Henley-on-Thames
Comprehensive heating system upgrade
Hot Water System Services Across Berkshire & Surrey
Professional vented and unvented hot water cylinder installation and repair services in your local area
Ready for Professional Hot Water Services?
Get expert installation or repair services with transparent pricing and comprehensive warranties
Frequently Asked Questions About Hot Water Systems
Expert answers to common questions about vented and unvented hot water cylinders
Vented systems use a cold water tank in the loft and rely on gravity to create water pressure. They're suitable for homes with low mains pressure but provide lower shower pressure. Unvented systems connect directly to the mains water supply, providing high pressure to all outlets but require adequate mains pressure and annual safety checks.
Our engineers will assess your mains water pressure, available space, hot water usage patterns, and existing plumbing. Generally, unvented systems are preferred for better pressure and space-saving, but vented systems may be more suitable for older properties or areas with poor mains pressure.
Yes, unvented hot water cylinders require annual safety checks by a qualified engineer. This ensures safety valves, expansion vessels, and temperature controls are working correctly. We provide annual service contracts for peace of mind.
Most installations take 1-2 days depending on the complexity. This includes removing the old system, installing the new cylinder, connecting pipework, and commissioning. We handle all Building Control notifications for unvented systems.
Cylinder size depends on your household size and usage patterns. A typical 3-4 bedroom house needs 210-250 litres. Our engineers will calculate your requirements based on the number of bathrooms, occupancy, and usage habits to ensure you never run out of hot water.
Yes, we can upgrade vented systems to unvented for better pressure, or replace old cylinders with more efficient models. We'll assess your current system and recommend the best upgrade path, handling all necessary approvals and modifications.
We provide comprehensive warranties including manufacturer equipment warranties (typically 10+ years) and our own installation workmanship guarantee. Extended warranties are available. All installations are fully insured and completed to British Standards.
Yes, we provide same-day emergency repair services for hot water system breakdowns. Our certified engineers carry common spare parts and can resolve most issues quickly. We offer 24/7 emergency call-outs for critical situations.
Still have questions?
Ready for Professional Hot Water Services?
Contact our Gas Safe registered engineers for expert hot water system installation, repair, and maintenance services across Berkshire and Surrey