Oil & Off-Grid
Oil Boiler Replacement & Installation by OFTEC Registered Engineers
Like-for-like replacements and new Grant and Worcester Bosch oil boilers, fitted across Kent, Essex, East Sussex, Surrey and Berkshire. You get a fixed written quote before any work starts.
OFTEC registered
Grant & Worcester Bosch installers
Fixed written quotes
Plumbusters replaces and installs oil boilers across Kent, Essex, East Sussex, Surrey and Berkshire. We’re a Kent family firm, OFTEC registered for installing, commissioning, servicing and repairing oil-fired boilers. We fit Grant and Worcester Bosch oil boilers. Ring 01622 474008 or use the form on this page and we’ll give you a fixed written quote before any work starts.
An oil boiler that has stopped working doesn’t always need replacing. Burner faults, blocked nozzles and fuel supply problems can often be repaired. If the heat exchanger has failed or parts are no longer made, we’ll quote for a replacement.
Areas we cover for this work: Kent · Essex · East Sussex · Surrey · Berkshire · Tonbridge & Sevenoaks · Medway
What an oil boiler replacement with us involves
Most oil boiler replacements are like-for-like: the old boiler comes out and a new one goes in on the same fuel supply. We also check the fuel line, filter and fire valve, as these sometimes need replacing at the same time.
- Like-for-like oil boiler replacements with a modern condensing boiler
- New Grant and Worcester Bosch oil boilers installed
- Fuel line, filter and fire valve checked, and replaced where needed
- System flush or filter fitted where the heating needs one
- Commissioned by an OFTEC registered engineer, with a combustion analysis and the burner set to the manufacturer’s figures
- Advice on whether a repair would do instead
- A fixed written quote before any work starts
- Annual servicing afterwards, if you want it
We price each replacement for the property, so there’s no price list on this page. Ring 01622 474008 or request a call back and tell us what boiler you have now. A photo of its data badge helps. You’ll get a fixed written quote before any work starts. The cost guide below explains what affects the price.
Read our Oil Boiler Replacement Cost Guide (2026) →See also: Oil Heating →See also: Oil Boiler Servicing →Frequently Asked Questions
What our clients think
Our Testimonials
We love our clients and they love our work. Our team is very experienced in both residential and commercial projects.
I have used Plumbusters for years for servicing my boiler and some great small jobs. This time it was a new boiler moved up two flights of stairs. All work was neat and tidy, with some fantastic pipe work, like a work of art. Considering the effort to take up carpet and floorboards, there are no corners cut and the best job done, not the quickest job just to move on to the next customer. Even the outside plastering of the old outlet pipe was made to look like bricks! At the end there was a full walk through to make sure everything was working and 2 follow up checks. Great job.
Martin T
· Facebook Review
Having only just moved into a new home, we were reliant upon recommendation by the previous owners. Plumbusters have been remarkably responsive and did an amazing job that turned out to be far more than first anticipated. We now have a swanky streamline vertical radiator in our family room along with two extra radiators on two upstairs bedrooms. Faultlessly clean, Grant gets our vote today. Thanks to you all. Now have you down as our preferred company for all things plumbing related. Best wishes. Mike & Joanne
Mike S
· Facebook Review
We found the engineer sent from Plumbusters to be very helpful and knowledgeable and clean and tidy in his work. They were quick to respond and reliable and professional while in our house. We would be happy to recommend them to anyone who is looking for a plumber.
Tom M
· Yell Review
Faulty boiler? No plumbing job is too big or too small.
Contact us today — our friendly team is always happy to help.