
Why Choose Us To Look After Your Unvented Hot Water Cylinder?
For over 25 years, we’ve specialised in servicing and repairing unvented hot water cylinders across Kent.
Our expertise means you’ll get reliable hot water when you need it, plus all the unvented cylinder benefits like better pressure and faster heating.
We’ll share maintenance tips to keep your system running smoothly, and you can trust us to treat your home like it’s our own.
Our Gas Safe registered team ensures compliance with safety standards, providing you with peace of mind and quality service.
We also have public liability insurance to protect our customers and provide additional security during our work. With an average rating of 5 out of 5 stars, our high customer satisfaction reflects the quality and reliability of our services.


Unvented Hot Water Cylinder Repairs In Kent
When it comes to unvented cylinder repairs in Kent, we’re here to help with common issues like water running from the overflow, hot water pressure problems, and situations where you’ve got no hot water at all.
We recognise how frustrating these problems can be, especially when you’re trying to get ready for work or need hot water for your family’s daily routine.
With our expertise in unvented cylinders, we’ll diagnose the issue quickly and get your hot water system working properly again, whether it’s a faulty valve, pressure problems, or something more complex.

At Thames Boilers, we’re experts in servicing unvented hot water cylinders and ensuring they operate safely and efficiently.
We’ll thoroughly inspect all safety devices and discharge pipework, making sure everything’s properly installed and functioning as it should.
During the service, we’ll also check and recharge your expansion vessel or air gap, providing you with a digital service certificate once we’re done.
Check safety devices
Safety devices form the core protective components of your unvented cylinder system, which is why we thoroughly test each one during our annual service visits.
As your local experts in Kent, we’ll check all safety device types, including pressure relief valves and temperature controls, following strict testing procedures to guarantee everything’s working as it should to protect your home and family.
Check discharge pipework
Proper discharge pipework maintains safety alongside the protection devices we’ve just discussed.
During our discharge inspection, we’ll thoroughly examine all pipework to guarantee it’s correctly installed and functioning as it should.
Our pipework maintenance check helps protect your home from potential leaks or discharge issues.
We take pride in keeping your unvented cylinder system safe and efficient for your family.
Recharge expansion vessel or air gap
Every unvented cylinder relies on its expansion vessel or air gap to manage water pressure and thermal expansion effectively.
During our annual servicing, we’ll check and recharge your expansion vessel or adjust the air gap to guarantee peak performance.
This essential expansion vessel maintenance helps prevent pressure-related issues, while proper air gap adjustments keep your system running smoothly and safely.
We’re G3 Registered
Here’s Why It’s Important
Nearly every unvented cylinder installation or repair requires a G3 certification, which we proudly hold.
We’ve invested in this essential qualification because we recognise its importance in keeping your home safe.
G3 regulations require that only qualified professionals like us can work on these complex systems.
When you choose us, you’re choosing peace of mind and compliance with all safety standards.
Frequently Asked Questions Unvented Cylinders
Kent
- Aylesford
- Bean
- Borough Green
- Chatham
- Cuxton
- Dartford
- East Malling
- Eynsford
- Farningham
- Gravesend
- Greenhithe
- Hartley
- Hextable
- Higham
- Istead Rise
- Kemsing
- Kings Hill
- Larkfield
- Longfield
- Meopham
- New Ash Green
- Northfleet
- Otford
- Rainham
- Rochester
- Sevenoaks
- Shorne
- Shoreham
- Snodland
- Southfleet
- Stone
- Strood
- Swanley
- Swanscombe
- West Kingsdown
- West Malling
- Wilmington
- Wrotham
