SigmaLondon provides luxury residential refurbishment services for Central London properties. Our company specialises in high-end contemporary renovations, refurbishments and extensions to homes and investment properties. Our experienced and dedicated craftsmen work under the close supervision of our project management team and to detailed documentation and specification provided by architects and interior designers. We believe in offering comprehensive building services and understand that working together coherently and cohesively is the best way to ensure the final quality of the design intent. Excellent design cannot be executed without a talented workforce and our aim is to always find the best, most reliable specialist, sub-contractors and suppliers.


We undertake commissions on the following types of projects:

Full home renovations - involving stripping the property back to bare bricks and rebuilding it, to include new plumbing, electrical work, new staircases, removing and repositioning walls and partitions to suit the architect’s design intent to achieve optimal layout.

Extensions and side returns - to accommodate open-plan kitchen-diner-living spaces connecting to the back garden, to include all kitchen cabinetry, fixtures and fittings.

Loft conversions - maximising the efficiency of London homes by utilising unused roof space and reconfiguring the tectonics of the traditional floor plate. In addition to work on the ridge line and height of the roof, this often requires additional work to reconfigure the main stair, bathroom provision, hot water supply and work to the chimney stacks.

Bathroom design and fitting - renovation of existing bathroom layouts, introduction of wet rooms, additional bathrooms and more compact water closets or cloakrooms as space permits.

Kitchen design and fitting - 21st living has typically repositioned the kitchen back to the heart of the home. Clean and efficient styling paired with bespoke crafted cabinetry and preparation spaces will refresh your home.

Bespoke joinery - purpose built cabinetry, wardrobes, dressing areas and vanity units provide that extra level of bespoke tailoring for our clients.