Cubit Design & Building Ltd has a wealth of over 20 years of experience and expertise in the building trade.

Cubit provides high end quality workmanship with attention to detail.

Cubit specialised in Loft Conversions, House Extensions, Remodelling, Refurbishments both Residential and Commercial.

The business thrives on its reputation and values. Integrity, Excellence, Honesty, Humility, Passion, Accountability, Safety, Collaboration, and Respect are among the distinctive values held by Cubit to achieve customer satisfaction.

We understand carrying out any building work can be both an exciting and stressful experience.

Our professional team will work closely with you to ensure all work is completed to your specifications.

We are able to provide advice and information depending on your needs. The end product will certainly add value to your property as well as add beautiful functional space to your family home.

Our services include but are not limited to:



Complete refurbishments


Commercial Gas Installation pipework / Catering

Domestic Gas & Heating


Cubit provides services to residential and commercial premises including effective property maintenance and responsive repair services as well as emergency 24hr response.

Cubit Ltd is a TrustMark Registered Business.
TrustMark is the Government Endorsed Quality Scheme covering work a consumer chooses to have carried out in or around their home. When a consumer uses a TrustMark Registered Business, they know they are engaging an organisation that has been thoroughly vetted to meet required standards, and has made a considerable commitment to good customer service, technical competence and trading practices.

Please contact us today to arrange an appointment for a free quotation.

Trades offered

Builder general
General extension
Loft conversions
Bathroom fitter
House Builder
Custom/Self Build
Central Heating
Emergency call out
Gas cooker fitting/repair
Landlord gas safety testing / certificates
Central Heating
Gas emergencies
Boiler servicing
Boiler install/repair
Kitchen installation
General plumbing
Underfloor heating (water)
General plumbing

Case studies

Swimming pool / hydrotherapy room

  • 20 Feb 2020
  • Cambridge

Commercial project: Complete refurbishment w/mezzanine in Shoreditch

  • 17 May 2019

See more case studies

Customer testimonials

16 Nov 2020

Charles and his team built us a huge back extension, which included an office, wet room and hydrotherapy pool room. During the job they were tidy, polite, hardworking and totally trustworthy. The job was completed to a very high standard, attention to detail is spot on. We are absolutely delighted with the work done. Couldn’t recommend them highly enough! I will be using their services again. - Antony Zenonos


17 May 2019

Great, clean and tidy work. Very polite. - GE


07 May 2019

There’s wasn’t the cheapest quote but Charles seemed far more competent than others who quoted, and the work included was more comprehensive! Charles and his team did an excellent job, and delivered exactly what was promised. They were professional throughout and kept us well informed at every stage of the process. All costs were laid out upfront, and there were no unexpected add-ons. I thoroughly recommend them. - KN

Winchmore Hill

17 Jan 2019

Charles and his team did great work at our new flat and we have already recommended him to family and friends! Charles turned up every day on time and left the place spotless when he left, taking away all debris (house was left cleaner than when he arrived!) My wife is pregnant and the team reconnected the toilet every night (thank you!) In terms of cost, there were no unexpected surprises and Charles was great at explaining each step of the process. Can't recommend enough! - AV