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When an old boiler becomes unreliable, it can leave you dealing with uneven heating, inconsistent hot water and repeated repair costs. RCB Heating & Cooling provides professional boiler installation in Morden, helping you choose a system that fits your property and household. We manage the work carefully from the initial survey through to final testing.

We design and install boiler systems for newly built properties, home extensions and renovation projects. Before choosing a model, we consider the size and layout of the home, the number of radiators and your normal hot-water requirements.

A boiler may still work but no longer be economical to maintain. Our boiler replacement service in Morden includes assessing the existing setup, removing the old appliance and installing a modern boiler with the appropriate output for the property.

Combi boilers provide heating and hot water from a single compact appliance, without a separate storage cylinder. They suit many flats and smaller homes, although we’ll check the mains water pressure and household demand before deciding whether one is right for you.

A modern boiler with suitable heating controls can reduce wasted energy and make your home more comfortable. We can upgrade older systems and explain how to use programmable controls to manage heating times and temperatures effectively.
Homes around Morden range from flats near the town centre to traditional family houses in Lower Morden and St Helier. Some have older heating systems and original pipework, while others have been extended or converted over the years. That means each installation needs to be assessed individually.
We begin by inspecting the existing boiler, radiators, controls and accessible pipework. We’ll also ask whether you’ve noticed any recurring problems, such as the system losing pressure, radiators taking too long to warm up or hot water running cold.
After the survey, we explain the suitable options in straightforward terms and provide a clear quotation. Once the work is booked, we protect the installation area, remove the old boiler where agreed and keep disruption under control.
The new system is tested thoroughly before we leave. We’ll also show you how to operate the boiler and controls so that you can use the heating confidently from the first day.
If replacement isn’t necessary, we offer boiler repair in Morden. An annual boiler service in Morden can also help identify developing issues before they turn into inconvenient breakdowns.
RCB Heating & Cooling is a Which? Trusted Trader with more than 3,600 completed projects and excellent Google reviews from our customers.
Our Sutton base keeps us close to Morden, allowing us to provide a genuinely local service. We’re familiar with compact installations in flats, older systems in family houses and properties where additions have placed greater demand on the original boiler.
Customers value our honest recommendations, reliable communication and respect for their homes. We don’t suggest a larger boiler or extra work unless there’s a practical reason for it.
Areas We Cover
We work across Morden, including Lower Morden, Morden Park and St Helier. Our engineers also cover Worcester Park, Raynes Park, Mitcham, Sutton, North Cheam and nearby areas across South West London and Surrey.

We inspect your current system and discuss your heating and hot-water needs.

We explain which boiler type, output and controls suit the property.

You receive a straightforward quotation detailing the agreed installation.

We remove the existing appliance where required and fit the new boiler.

We test the heating and hot water, demonstrate the controls and answer your questions.

A straightforward replacement can often be completed within one day. Moving the appliance or converting the system may take longer.
The correct output depends on the property’s heat demand, number of radiators, bathrooms and hot-water use. We calculate this during the survey.
Often, yes. We’ll first check the mains water flow and whether a combi can meet your household’s peak hot-water demand.
Usually, provided the new location allows for suitable pipework, drainage, access and a compliant flue route.
That depends on its age, condition, repair history and the cost of the fault. We’ll explain the most practical option.
Annual servicing is recommended to identify wear, check performance and help maintain the manufacturer’s warranty.
If you’re considering a new or replacement boiler in Morden, contact RCB Heating & Cooling to arrange a survey. We’ll inspect your existing heating system, explain the suitable choices and provide a clear quotation.
We also cover all surrounding areas and postcodes, including Morden, Lower Morden, Morden Park, St Helier, Worcester Park, Raynes Park, Mitcham, Sutton and North Cheam, across the SM1, SM3, SM4, SM5, KT4, CR4 and SW20 postcode areas.

£15
inc vat
For keeping warranty valid
£22.80
inc vat
For basic protection
£32.40
inc vat
For reliable family heating
£42
inc vat
For total coverage
£66
inc vat
Covering plumbing, drains and more
Features
Annual Boiler Service
Priority Service & Call Outs
Free of Charge Call Outs
1 Free Callout
Boiler and all internals
Labour Cost Discount
10%
100%
100%
100%
Replacement Part Discount
10%
20%
100%
100%
Loyalty Discount
10%
20%
30%
30%
Discount on new boiler installation**
10%
30%
50%
50%
Annual System Water Test
Annual System Anti Corrosion Treatment
Circulation pump
Thermostatic radiator valves
Timer/thermostat
Hot Water Cylinder
Radiators
Heating pipework
All gas supply pipes
System Powerflush (every 5 years)
Plumbing
Drains
Home Electrics
Optional Add-Ons
Unvented Cylinder Service
(Additional £6+VAT)
Gas Fire Service
(Additional £7.50+VAT)
Electrical Cover
(Additional £9+VAT)
/month + VAT
For keeping warranty valid/month + VAT
For basic protection/month + VAT
For reliable family heating/month + VAT
For total coverage/month + VAT
Covering plumbing, drains and moreready to upgrade your heating system?
Contact RCB Plumbing Ltd today to discuss your heat pump care plan.

RCB Plumbing serves local homes and businesses with honest advice, prompt response, and professional workmanship every time.
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