Combi boiler installation
The most popular choice for Dearne Valley homes. Combi boilers provide heating and hot water on demand with no need for a separate cylinder or tank. Ideal for most homes up to 4 bedrooms.
Dearne Valley
S64 Bathrooms installs new boilers across the Dearne Valley — Mexborough, Wath-upon-Dearne, Bolton-upon-Dearne, Goldthorpe, Swinton, Kilnhurst and the surrounding area. Gas Safe registered, locally based and offering finance to spread the cost. Free quotes with no obligation.
S64 Bathrooms is based at 152b Doncaster Road in Mexborough — right in the heart of the Dearne Valley. That means faster response times, lower call-out costs and engineers who know the area. Whether you're in Wath-upon-Dearne, Bolton-upon-Dearne or Goldthorpe, we can usually get to you the same day or next day for a free survey.
We install combi boilers, system boilers and regular (heat-only) boilers from leading brands including Worcester Bosch, Viessmann, Vaillant, Baxi and Ideal. Every installation comes with a manufacturer's warranty and our own workmanship guarantee.
Not sure which boiler is right for your home? Our engineers will assess your property, hot water demand and existing system before recommending the best option — not the most expensive one. Read our combi vs system boiler guide for more help.




The most popular choice for Dearne Valley homes. Combi boilers provide heating and hot water on demand with no need for a separate cylinder or tank. Ideal for most homes up to 4 bedrooms.
System boilers work with a hot water cylinder, making them better suited to larger homes or households with high hot water demand. A good option if you're switching from a traditional system.
For homes that already have a hot water cylinder and cold water tank, a regular boiler replacement is often the most straightforward and cost-effective upgrade.
If you want to move your boiler — from a kitchen cupboard to a utility room, for example — we handle all the pipework, flue rerouting and gas connections.
A new boiler is a significant purchase and not always one you can plan for in advance. We offer boiler finance for Dearne Valley customers, allowing you to spread the cost over monthly payments rather than paying upfront.
Finance is available subject to status and credit check. Call us on 07301 993125 or visit our finance page for full details.
Most boilers have a lifespan of 10–15 years. If yours is older than that, or you're experiencing frequent breakdowns, rising energy bills or inconsistent heating, it may be more cost-effective to replace it than continue repairing it.
Signs that a replacement could be the right call:
Read our 7 signs your boiler needs replacing for a full guide.
Free or heavily subsidised boiler replacements may be available for eligible Dearne Valley households through the ECO4 scheme. This government-funded programme targets low-income households and those in fuel poverty, and can cover the full cost of a new boiler in qualifying properties.
We also offer OAP discounts for customers aged 65 and over across the Dearne Valley.
We install boilers throughout the Dearne Valley. Here are the main towns and villages we serve:
Can't see your town? Call us — we likely cover you.
As well as new boiler installations, we provide a full range of heating services across the Dearne Valley:
We're based in Mexborough and cover the full Dearne Valley area. Call for a same-day or next-day survey and a free, no-obligation fixed quote.