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About Us

Proficiency is a Design & Build Company establish in 2015, specializing in residential projects in all London, providing customers with a bespoke building services from side return extensions, single and double rear extensions, loft conversions, basement conversions to complete building renovations and new builds.

About Proficiency Ltd

Our approach to construction is a design and build method where everyone is on the same team and share the same gold.

After working in the building trade for over 17 years and with many successful projects, our directors opened Proficiency with the knowledge that people have busy lives and managing a building project where the architect and the builders are not in the same page can be a very stressful experience.

At Proficiency we know that the design and build approach is a win-win solution that will benefit both property owners and us.
We believe that the key to finish a project on time and on budget is communication. That's why our integrated team of architects, designers and builders work together to meet or exceed our client's expectations till the full completion of their project.

At Proficiency we offer two types of packages for our services:

  • A design/build process were we manage a project side by side with the client from the design, planning application (if needed), party wall agreement to the construction and finish of the project.


  • Or if you have an architect, we will be happy to undertake the construction of your project through the completion, according to your architect's plans and specifics.


Design and Build Benefits

By choosing Proficiency for your building project you will benefit by having a single design and build company, motivated to deliver a successful project by fulfilling multiple tasks, including great design, quality, budget and project management.

Proficiency can work with any property renovation or house extension, from side return kitchen extensions to single and double conversions and new builds.


Feel free to navigate through our website to find out more about the Services we offer or visit our Gallery page to check out some of our recently completed projects.


loft conversions london

Loft Conversions

From loft conversion design right through to loft building we offer the end to end solution as well...

House extensions

House Extensions

At Proficiency we pride ourselves about our house extensions, from complete re-builds to...

House Extensions | Basement Conversions | Basement Renovations | Building regulations | Loft Conversions | Kitchen Extensions | Residential Property Conversion | Full House Renovation | Design and Build


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Design and Build Advantages
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