As a specialist construction company, working in South West London area we have gained an in depth knowledge of the architectural and engineering characteristics of the local Victorian and Edwardian housing stock. This enables us to work with the demands of your building as well as with you.


When we begin work on your house, a site foreman will be appointed who will be with you to the very end of the project. He will oversee all the work on a daily basis and be your regular point of contact with the job as it progresses. We will also arrange a site meeting between you and the Managing Director, Roman Cmiel, once a fortnight to keep you fully updated on the progress of your project.


We are the only company in London specialising in side returns and rear house extensions and we have built our reputation through the word of mouth by satisfied customers. We understand what’s required of your building as well as your needs as a client. If you’re considering a side return, a rear house extension or a bespoke extension why not contact us?


We are fully acreditated members of TrustMark, Which? Trusted Trader and FMB. So you can be sure that your extension project will be in safe hands. To find out more about our acreditations, please click here.

Latest Projects

We have successfully completed many extension projects and have many satisfied customers. Here are a selection of photos. To see more, click here.

Customer Testimonials

Very reliable and excellent value

London Kitchen Extensions completed our kitchen extension as promised to a very good standard. We’re really pleased with the results. The owner – Roman – has a good eye for detail, lots of patience and plenty of ideas. He’s a pleasure to work with. He is also very competitively priced and delivered a great job on budget. Would recommend.

Jon, London

Very professional – I would highly recommend

My experience with The London Kitchen Extensions Company Ltd was completely stress free.  I was up-dated regularly about progress of the work regularly by Adrian and his team of workers.  Very happy with the work on my side return kitchen extension work done by The London Kitchen Extensions Company Ltd All staff were very professional and personable at all times.  Work completed on time I would highly recommend them for quality of work and professionalism.

Baljit, London SW17

Professional, personable – excellent

London Kitchen Extensions built a fantastic single storey kitchen extension for us – the team and management of the project was faultless. Professional and polite builders who really knew their trade. Wouldn’t hesitate to employ again on future projects and can’t recommend highly enough.

Rachel, London

 Excellent, professional job

Very pleased with the London Kitchen Extensions job – service & quality was excellent. Roman Cmiel provides that personal touch and is always available to his clients. Thoroughly recommended for building works. His team work hard and are diligent. Good job!

D, London

Very happy with the work

The London Kitchen Extension company built us a new two storey extension including a new kitchen, family bathroom, and bedroom and shower room as well as extensively remodelling all but one of the existing rooms in the house. We are a family with kids and we lived on site the whole time and found the team to be great to work with throughout. We are very happy with the quality of the work and the responsiveness to any issues that came up.

Dominic, London SW2

Efficient and professional

Roman is extremely professional and fills you with confidence that no job is too difficult. His team, led by Adrian are punctual, courteous and very good at their job. At no point was I nervous about the project. This was great as I was rarely on site.

Adam, London

Areas we cover

SW2– Brixton,  SW4– Clapham, SW6– Fulham,  SW8– Vauxhall, SW9– Stockwell, SW11– Battersea, SW12– Balham, SW13– Barnes, SW14– Mortlake, SW15– Putney & Roehampton, SW16– Streatham, SW17– Tooting, SW18– Wandsworth, Southfields & Earsfield, SW19– Wimbledon,Merton Park & Colliers Wood, SW20– West Wimbledon & Raynes Park, W6– Hammersmith, SE24– Herne Hill, SE27– West Norwood


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