Home Extensions

Home extensions London

Atomic Build specialises in residential extensions across Greater London. Extending your home allows you to expand your living space and upgrade your quality of life. We offer a tailored approach to all aspects of home design and construction, with bespoke client-led solutions combined with attention to detail and technical expertise.

There are many ways to extend a house, but our expert consultants will offer valuable advice to help you make the right decisions. After listening to your needs and understanding your requirements, we will create a detailed development plan complete with visualisations and structural calculations. 

Atomic Build has experience extending upwards with lofts and double storey extensions, outwards with wrap around and side extensions, and downwards with basement and garage extensions. However you want to expand your space in Greater London, we’ve got you covered.

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Types of extensions

We specialise in home extensions, renovations, outbuildings, and other creative ways to expand and upgrade your home. If your family is growing or your current home feels limited in any way, you can always extend, expand, and evolve into new territory. Atomic Build specialises in the following extensions:

  • Wrap around extensions
  • Rear extensions
  • Side return extensions
  • L shaped extensions
  • Double storey extensions
  • Kitchen extensions

The Atomic Build company advantage

At Atomic Build, we combine vision and passion with technical knowledge and expertise. Whether you want to extend your kitchen, add a new bedroom, or construct an extensive wrap around, the successful expansion of spaces requires experience and attention to detail. We focus on customisation and support at every stage of the process, with every element of design, engineering, and construction available as a single integrated solution.

The Atomic Build extension process

After working across Greater London for many years, we have developed a well defined process that can be broken down in the following steps:

  • Free site meeting with detailed gap analysis
  • Pre-construction pack, including a quote, forecast construction stages, and time frames
  • Detailed design development, including architectural drawings and calculations
  • Contract stages defined and suppliers listed
  • Building commencement and quality control system defined
  • Completion and deployment, including an insurance-backed guarantee

Atomic Build service the following locations

Atomic Build operates throughout the Greater London area, from the inner-city to the suburban fringes. We service the following London locations and many more: Richmond, Twickenham, Greenford, Harrow, Gerrards Cross, Hammersmith, Uxbridge, Iver, Watford, Pinner, Stanmore, Ruislip, Brentford, and Teddington.

If you’re looking for outstanding home design and integrated building services, please contact our friendly team today.

Atomic Build is proud to be a member of the Federation of Master Builders (FMB).
9.77 / 10 - Average rating over 93 reviews in the last 12 months on Checkatrade
Check out our customer reviews on Checkatrade
We chose Atomic building to design, to renovate some parts of the old house, to build extension and to convert garage. The team has done all of the jobs nicely. Nikesh gives so much good advice on lots of things, from the design to the choose of blinds. Highly recomended.
Yuan Li
Yuan Li
23:32 13 Dec 21
These guys are real class act. We hired them to put together some architectural plans for an extension and have now engaged them to do the works, which they've nearly completed. They have been exceptionally attentive and conscientious all the way through. They have really given us the benefit of their experience and advised us in options throughout. Their communication is excellent and they deliver on what they promise. Very impressed with their work.
Adam Ruddock
Adam Ruddock
18:57 13 May 21
We reached out to Atomic Build to help us with our single storey rear extension and can honestly say the planning stage was made so easy. Nikesh, Jhonny and the whole team were amazing, listening to what we were after, clearly explaining the process and the difficulties we may face but also what can be achieved. Loved their honesty and personal touch. Thank you
Ravinder Brar
Ravinder Brar
16:22 17 Jan 21
Hi Nikesh and team - I have finally found the time to write my review for you!I discovered Nikesh on Check a Trade, after a number of phone calls, site visits and even visiting one of his on going projects - we were happy and Nikesh and his team came on board our house renovation project. We liked Nikesh, a genuine guy, his reasonable pricing and knowledge and even his vision on how to place everything together was what made us select him over many other builders we received quotes from. Being our first major renovation we were nervous and apprehensive, but Nikesh was always friendly, on hand to answer questions (many many questions!) and had lots of knowledge. Reassuring!The project went very well, Nikesh and his team worked around the clock to get things completed, building us an extension with skylights, tiling and fitting two bathrooms, removing a backdoor and bricking it up (choosing a good brick match too!) He also worked across the whole house replumbing fit and plastering. He was always full of lovely ideas - often laughing at our rather adventurous colour schemes and 'shabbysheek' style! We both decided the yellow radiator was a fab choice. ;)I really appreciate the dedication Nikesh gave us, always at the end of the phone and his team are all very hard working and friendly, making me laugh all the time!We will be following up with further imagery of the house once it is completely finished, I will upload some shots of some of the works carried out.I definitely recommend using Atomic Build for whatever works you would like carried out, it can be a daunting process selecting somebody to come on board, but we had loads of fun working together, thank you so much. Hannah x
Hannah Ranken
Hannah Ranken
12:31 03 Jul 20
We worked with Nikesh and his Architect Jhonny Silva on our house extension and remodelling project. Sadly due to COVID-19 we weren’t able to carry out the extension project in 2020 however they helped us in seeking our planning permissions much sooner that what we anticipated. They also assisted us in interior remodelling and Nikesh has been an amazing support. We were quiet clueless stepping into such massive project and Nikesh has been a Pillar of support for us from the very beginning. He always made himself available to discuss all details big or small. They’ve been absolute amazing !
Neha Dahiya
Neha Dahiya
13:09 26 May 20
We appointed Atomic Build Ltd to do our kitchen extension , loft conversion and bathroom renovation after a friend recommendation. We were impressed with the work quality and good value for what you pay. They have a invaluable design team which can help even if they did not do your planning application as some things are more practical on site. I can recommend them to anyone looking a practical loft conversion.
Prince Dhillon
Prince Dhillon
12:31 02 Apr 20
Loft and extension planing applications.happy with progress
Manjeet Multani
Manjeet Multani
12:55 02 Feb 20
Atomic build did the planning application and construction of my extension many years ago. We are pleased with their finished product and professionalism and can highly recommend anyone looking for a reputable construction company
14:01 27 Jan 20
Atomic Build - Nikesh and his team are very knowledgeable and skilful. Also very responsive and courteous . I am always up-dated on progress. Team always arrive on time and did an excellent job on my extension. Highly recommended.
bee ng
bee ng
17:27 23 Jan 20
Had my rear extension done with Atomic Build and I was very impressed and happy with the work carried out from sorting out all planning permissions to the end results. Very professional and friendly team. The first and only company that I experienced punctuality and reliability with. Extremely happy with my extension, thank you so much. Will definitely recommend to my friends and family should they need any building work. 👍🏽👍🏽
Nazia Hashim
Nazia Hashim
17:09 03 Dec 19
What can I say! We are over the moon with Nikesh and his team! From day one the amount of effort put in has been outstanding. We came across Atomic on checkatrader , I think we stumbled on a real gem! The Atomic team have done our plastering , fitted windows , bricked up a door and the foundations work for our 3 metre extension so far of our project. We uncovered a variety of issues with pipes within the foundations, Nikesh was always extremely helpful, resourceful and patience with me. I highly recommend the guys , they are great fun on site but also professional and knowledgeable. I hope we can work together on future projects!
Hannah Ranken
Hannah Ranken
17:57 21 Nov 19


– No obligation meeting at your site to establish project scope
– Gap analysis on existing information available
– Project quote and timeframes


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