Service area · London
The Royal Borough of Kensington and Chelsea is one of the most architecturally protected areas in London. Stucco-fronted Georgian terraces, grand Victorian mansion flats, mews conversions, and the leafy garden squares around Holland Park and Chelsea Embankment all bring their own quiet set of challenges — and a homeowner expectation of work that is proportionate to the property.
We treat each install as a precision job. Nothing visible from the street that should not be. Pipework concealed behind joinery where possible, boxed cleanly where not. Plant rooms tidied to a standard a future engineer will appreciate. Outdoor units sited so that a neighbour in the next garden never has cause to raise it.
Homeowners here tend to be long-term, well-researched, and interested in the "why" behind the specification. We prefer this. We write proper quotes, explain what we are recommending and what we are not, and make ourselves available after the job is finished — not only during the sale.
Borough
Royal Borough of K&C
Postcodes
SW1, SW3, SW5, SW7, SW10, W8, W10, W11
Conservation areas
20+ designated
Typical property
Period terrace or mansion flat
What we work on
Stucco-fronted terraces in SW3, SW7 and SW10 with 3–5 storeys and small rear gardens. Mansion flats in SW1, SW5 and W8 with period plant rooms ripe for updating. Mews cottages with tight ceiling voids, often limited in available outdoor space. A smaller number of 20th-century apartment buildings in prime blocks where the service charge covers some but not all mechanical upgrades — we work with managing agents where needed.
What Kensington & Chelsea homes ask for most
Boiler replacement remains the most common reason Kensington homeowners call us — particularly for mansion flats where a Viessmann or Worcester system boiler with an unvented cylinder is usually the right answer. Concealed ducted air conditioning for top-floor bedrooms has grown steadily. Heat pumps are increasingly viable where outdoor space allows — we handle the MCS-020 siting analysis and any planning liaison needed in conservation areas.
Primary focus
Gas and electric boiler installation, replacement, repair. Viessmann-trained engineers.
Learn moreAlso available
Daikin-approved air conditioning installs for London homes. Split, multi-split and VRV systems.
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Air source heat pumps, properly specified for London homes. MCS-certified installs, full grant support.
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Annual servicing, emergency repairs and warranty work across every system we fit.
Learn moreLocal considerations
01
Most of the borough sits within one conservation area or another — Chelsea, Royal Hospital, Brompton, Earl's Court Square, Holland Park, Ladbroke, and many more. External plant, flue terminations and outdoor units need careful siting. We check designation before quoting.
02
Grade II-listed stock is common, and any intervention affecting character needs listed building consent. We have worked inside listed properties before and know which conversations to have with planning before starting a job.
03
Permit-only parking throughout most of the borough. Our vans arrive with dispensations where your postcode allows, and we coordinate with porters and concierge on any mansion block work.
Representative projects
Illustrative of typical installations in the area. Verified customer case studies with permissions are added as they become available.
SW3
postcode area
A typical Chelsea mansion flat install — replacing a tired 1990s system boiler with a modern Viessmann system-and-cylinder setup. Properly sized for the flat's three bathrooms, installed over two days with minimal disruption to neighbouring flats in the block.
W8
postcode area
A family home in the Kensington area having three top-floor bedrooms and a home office cooled via concealed ducted units in the ceiling void. Slot grilles only visible in the finished ceilings, outdoor condenser sited in a light well where planning allowed.
SW10
postcode area
A World's End period terrace retrofit — heat pump fitted in the side return, emitter sizing reviewed room-by-room with radiator upgrades in three rooms, underfloor heating retained on the ground floor. Boiler Upgrade Scheme grant deducted at quote.
Customer stories
Placeholder reviews shown while we build a verified Google and Checkatrade profile.
Replaced our old combi with a heat pump. Quiet, much cheaper to run, and the team left the plant room tidier than they found it.
Rachel M.
Dulwich · Heat pump
We had three quotes for a new Viessmann boiler. Thermalwerk was not the cheapest, but they were the only ones who actually explained the sizing.
David K.
Islington · Boiler replacement
Two Daikin units fitted across an open-plan living space. Clean cable runs, properly commissioned, works brilliantly. Glad we waited for them.
Priya S.
Kensington · Air conditioning
Talk to us
Tell us the postcode and the system you're thinking about — we'll come back the same working day with a proper plan and a realistic timeline.