Our Services

Expert Heating, Boiler Installation & Plumbing Solutions in Bath

At RJ Mitchell & Son Ltd, with over 40 years’ experience, we specialise in delivering all aspects of heating and plumbing for homes around Bath. From new installations and system upgrades to servicing and repairs, we have the expertise and accreditations to carry out all work to the highest standards.

We know that when something goes wrong with your boiler or heating then it can be incredibly stressful but fear not as we’re here to help you take the stress away by removing the guess work. Our expert team will get to the root of the problem and come up with a solution that’s just right for you.

Heating Services

We don’t just install boilers, we design, advise and optimise your heating system for comfort, efficiency and reliability.
Whether you’re installing a new system or improving an existing setup, we’ll guide you every step of the way.

Key Services:

Design and installation of system, heat‑only and combination boilers

Advice on improving energy efficiency and system performance

Breakdown and servicing support

Both vented and unvented domestic hot water systems

Radiator upgrades

Central Heating Systems

We install and maintain central heating systems for both domestic and smaller commercial properties.

Services include:

Comprehensive system installation or alteration (radiators, controls, pipework)
Upgrades or retrofits to existing systems for better performance
Balancing and commissioning to ensure your system delivers the right heat, where it’s needed

Boiler Servicing & Repairs

Keep your heating working reliably and safely with our dedicated servicing and repair service. We’re fully Gas Safe registered and prepared to handle breakdowns, maintenance and servicing.

Scheduled servicing to maintain boiler efficiency and prolong lifespan
Annual reminders when service is due

Plumbing Services

We also carry out small plumbing works.

Home Air Conditioning Installation in Bath & Surrounding Areas

Did you know we also install air conditioning systems in homes across Bath and surrounding areas?

Take a look at our dedicated home air conditioning page.

Got a question about Boiler Installation? Check out our Frequently Asked Questions here.

Take a read through some of the most common questions that we get asked about boiler installation. Can’t find the answer or have more questions? Just contact us here and we’ll be happy to help.

The cost of a new boiler installation varies depending on the type of boiler, the size of your property, and the complexity of the installation. Factors such as relocating the boiler, upgrading pipework, or installing additional controls can also affect the final price. We provide free, no-obligation quotations tailored to your home’s requirements.

The most suitable boiler depends on your property’s size, heating demands, and hot water usage. Combi boilers are popular for smaller homes with limited space, while system and regular boilers are often better suited to larger properties with multiple bathrooms. Our engineers can recommend the best option during a home survey.

Most straightforward boiler replacements can be completed within a day. More complex installations, such as changing boiler types or relocating the unit, may take between 2 and 5 days.

Yes. All gas boiler installations must be carried out by a Gas Safe registered engineer. This ensures the installation complies with current safety regulations and manufacturer requirements.

Boiler size is determined by your property’s heating and hot water requirements rather than the physical size of the unit. Factors such as the number of radiators, bathrooms, and occupants will influence the recommended boiler output.

A combi boiler provides heating and hot water directly from the mains without requiring a hot water cylinder. A system boiler works with a hot water cylinder but does not require a feed and expansion tank in the loft to supply the heating. A regular boiler requires both a cylinder and a feed and expansion tank and is commonly found in older heating systems.

Modern condensing boilers are significantly more energy efficient than older models. Replacing an ageing boiler with a new high-efficiency model can help reduce energy consumption and lower heating bills.

In many cases, yes. New boilers operate more efficiently than older systems and can reduce wasted energy. The amount you save will depend on your existing boiler’s age, condition, and your household’s energy usage.

Many manufacturers offer warranties ranging from 5 to 12 years, depending on the boiler model and installation requirements. Warranty periods may vary and often require annual servicing to remain valid.

Yes. Boilers can often be relocated to a more convenient location such as a utility room, loft, garage, or kitchen cupboard. Additional work may be required for pipework, flue, and condensate drainage.

A power flush may be recommended if your heating system contains sludge, debris, or signs of poor circulation. Cleaning the system helps protect the new boiler and improve heating efficiency.

The installation process typically includes removing the old boiler, fitting the new appliance, upgrading controls where required, testing the system, commissioning the boiler, and demonstrating how to use the controls.

Smart thermostats and heating controls can help improve comfort and reduce energy consumption by allowing you to manage your heating remotely and create more efficient heating schedules.

We recommend having your boiler serviced annually. Regular servicing helps maintain efficiency, identify potential issues early, and ensure any manufacturer warranty requirements are met.

Common signs include frequent breakdowns, rising energy bills, unusual noises, inconsistent heating, leaking components, and boilers that are more than 10–15 years old. Fluctuating hot water temperature at the hot water taps can also be a sign.

Yes, we offer finance options.

Simply contact our team to arrange a free home survey. We’ll assess your heating requirements and provide a detailed, no-obligation quotation for the most suitable boiler solution for your property.

Why Our Accreditations Matter

Our professional memberships and qualifications guarantee your work is carried out safely, correctly and in line with the latest standards:

Why Choose Us

A family‑run business dedicated to personal service and a strong reputation in the Bath area
Over 4 decades of experience, delivering quality and trust
Transparent pricing, honest advice and workmanship you can rely on
Fully accredited, qualified engineers handling every job
A commitment to prompt, dependable service for all installations, upgrades and repairs

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Get in touch

Ready to discuss a new heating system, boiler service or plumbing project? Contact RJ Mitchell & Son Ltd today for a free, no‑obligation quote and find out how we can keep your home comfortable and efficient.

Get in touch