Home Services Boiler Installation St Leonards-on-Sea
New Boiler Installation in St Leonards-on-Sea
From grand Victorian villas to converted seafront flats, St Leonards-on-Sea has some of the most characterful housing in East Sussex, and some of the trickiest heating setups. Ellwood & Son are Gas Safe registered installers based minutes away in Hastings, fitting combi and system boilers matched properly to the property in front of us.
Boiler Installation
Boilers for Flats, Conversions and Period Houses
A huge share of St Leonards homes are Victorian buildings that have been divided into flats over the years. That brings specific installation questions: where the flue can legally terminate, how far the boiler sits from windows and boundaries, and how to run condensate pipework without it freezing on an exposed wall.
We deal with these buildings week in, week out. Whether it is a compact combi tucked into a flat's kitchen cupboard or a system boiler feeding a whole four-storey house, we plan the installation around the building rather than forcing a standard job onto it.
Gas Safe registered engineers
All major brands: Worcester Bosch, Vaillant, Ideal
Registered Ideal Connect installers
Worcester accredited installers
Gas Safe Registered. Local. Guaranteed.
We follow a structured approach to ensure every job is completed to the highest standards, with minimal disruption to your home or business in St Leonards-on-Sea.
Hastings & East Sussex
How the Installation Runs
It starts with a free survey at the property, where we check gas supply, water flow, flue options and radiators, then send a fixed written quote. On installation day we dust-sheet the work area, strip out the old appliance, flush the system, fit the new boiler and filter, and commission everything to the manufacturer's spec.
Before we leave, we register your warranty, set up the controls the way you want them and walk you through the basics, including how to top up pressure yourself.

Hastings & East Sussex
Accredited for the Brands That Matter
We install all major brands and hold accreditations where it counts: we are Worcester accredited installers and registered Ideal Connect installers, and we regularly fit Vaillant too. Accreditation is not a sticker, it means the manufacturer has vetted our work, and on selected boilers it lets us offer longer warranty terms than a non-accredited fitter can.
- Worcester Bosch - fitted by accredited installers, a favourite for reliability
- Vaillant - quiet, efficient combis and system boilers
- Ideal - strong value, fitted by registered Ideal Connect installers
- All sized properly - matched to your radiators, bathrooms and mains flow

Hastings & East Sussex
Aftercare You Can Actually Reach
We are a local firm, not a national call centre. If anything needs adjusting after your installation, you call the same people who fitted it. We also offer annual servicing to keep the warranty valid, and emergency callouts if something ever goes wrong out of hours.

Accredited & Trusted
Manufacturer-Backed Workmanship
Worcester Accredited InstallersGas Safe RegisteredOur Work
Recent Installations Near St Leonards-on-Sea




Help & Advice
Frequently Asked Questions
Can you fit a new boiler in a St Leonards flat?
Yes, flats are a big part of our work in St Leonards-on-Sea. The main considerations are flue position and condensate routing, which we confirm at the survey. If the freeholder or managing agent needs paperwork or notice, we are used to providing it.
What does a new boiler cost in St Leonards-on-Sea?
A straightforward combi replacement sits at the lower end of the scale, while system conversions or relocations cost more because of the extra pipework and labour. Every job is priced from a free survey with a fixed written quote, so the figure you see is the figure you pay.
How long will I be without heating and hot water?
For a like-for-like swap, usually just a few hours during the working day, and heating is back on the same evening. Bigger jobs such as conversions can run to two or three days, and we plan them so you are without hot water for as little of that as possible.
Which boiler suits a one or two bedroom flat?
A compact combi is nearly always the answer. It heats water on demand, needs no tank or cylinder, and frees up storage space, which matters in a conversion. We size it to your mains water flow so the shower performance is right.
My building is Victorian. Does that complicate the installation?
Sometimes, but rarely enough to stop a job. Solid walls, shared flues from old configurations and long pipe runs just need proper planning. We survey carefully, flag anything unusual up front and price the whole job before you commit.
Can the new boiler go in a different place from the old one?
Yes. Moving a boiler out of a bedroom cupboard or into a kitchen is common in converted buildings. Relocation adds cost for pipe and flue work, and we will show you the difference in the quote so you can weigh it up.
Do you flush the system before fitting the new boiler?
We always cleanse the system as part of an installation, and where sludge is heavy we recommend a full power flush, which is a service we offer in-house. A clean system protects your new boiler and is a condition of most manufacturer warranties.
What warranty comes with the boiler?
Manufacturer warranties apply to every boiler we fit, and our Worcester and Ideal accreditations can extend the term on selected models. We register it for you. Keeping it valid simply requires an annual service, which we can handle too.
Are your engineers Gas Safe registered?
Yes, every engineer working on gas is Gas Safe registered, which is a legal requirement. We are happy for you to check our credentials before work starts.
I am a landlord in St Leonards. Can you handle the whole job?
Yes. We fit boilers in rental properties regularly, can liaise with your tenants directly for access, and can issue the landlord gas safety certificate (CP12) alongside the installation so the property is fully compliant in one visit.
Do you cover all of St Leonards-on-Sea?
Yes, the whole of St Leonards, from the seafront up to the residential streets inland. We are based next door in Hastings, so we are never far away, and we also cover Bexhill-on-Sea and Rye.
Thinking About a New Boiler in St Leonards?
Book a free survey with Ellwood & Son on 07525 024973 and get a fixed quote from accredited local installers.