Basement kitchen with garden
| 4.9 50+ Reviews
Logo of Considerate Construction Scheme

Basement Conversion in Chiswick

Basement conversions in Chiswick offer a great way to add valuable space to your home and increase your property value.

Discover how a bespoke basement conversion can give you the room you need — without leaving the place you love. Whether you're looking to add a home office, swimming pool, or entertainment area for your growing family, you need a basement conversion specialist to get the job done professionally and on time.

Choose Proficiency Design & Build for exceptional results tailored to your needs.

High end side return extension

We strive to be London's leading luxury basement company.

Basement Conversions Throughout London

Finding space in London isn't easy, but going underground offers a world of possibilities.

At Proficiency Design & Build, we specialise in basement conversions throughout the capital, helping homeowners unlock valuable, under-utilised square footage without altering the existing structure of their property.

From Richmond in South London to Islington in North London, our team delivers exceptional building solutions no matter where you're based.

Leaders in Design & Build

Federation
of Master Builders

Accredited by the Federation of Master Builders and approved by NICEIC and Gas Safe, we take no shortcuts when it comes to safety and quality.

Planning
Permission

Our architects and project managers handle all planning permission applications for your basement conversion project, ensuring they comply with local building regulations.

Considerate Constructors Scheme

Reflects our dedication to minimising disruption to neighbours and reducing our environmental impact during every project.

Types of Basement Conversion services

Residential basement renovation in London

REFURB

Transform underused or outdated London basements into bright, functional spaces filled with natural light. It's the most effective way to add substantial value to your Chiswick home!

residential basement fit out

CONVERSION

From a quiet home office, extra living space, home cinema, or playroom tailored to your specific needs, Proficiency's team of experts listens to your vision and brings your dream home to life.

wine cellar fit out

CELLAR

Create temperature-controlled wine storage and sophisticated tasting rooms below ground, complete with structural waterproofing to protect your prized collection.

Start-To-Finish Building Company

Proficiency Design & Build offers complete basement conversion services in Chiswick. With years of experience in the West London area, our team understands the unique challenges of sub ground building.

From initial design concepts and structural assessments by qualified structural engineers to innovative damp-proofing techniques and luxury finishes, our building company handle every aspect of your basement project with ease.

We only use durable building materials and build with energy efficiency in mind, ensuring functional, stylish spaces that are built to last.

WHY OUR BUILDING COMPANY

We strive to provide the best basement conversion services throughout London. Our tailored building solutions, exceptional attention to detail, and high-quality craftsmanship are just a few ways we deliver stress-free building services.

  • Completely insured, including coverage for Public and Employers Liability, Professional Indemnity and Contractors All Risk
  • We only use premium building materials, ensuring your basement design is made to last.
  • Our project managers provide transparent communication throughout your entire basement extension project, ensuring peace of mind.

Our Building Projects

open plan kitchen extension
The Avenue, Queen's Park Side Return House Extension View Project
Modern house renovation
Conewood Street, Highbury Side Kitchen Extension View Project
kitchen
Cambridge Road, Twickenham Open Plan Kitchen Extension View Project
open plan Kitchen renovation
Wesbere Road, West Hampstead Kitchen Renovation View Project
Building a room

Convert Your Basement With Proficiency Design & Build

If you're ready to increase the value of your property with stylish basement conversions in Chiswick, you need expert basement conversion specialists on your side. Proficiency Design & Build has the expertise to transform outdated basement structures into the living spaces of your dreams. Speak to our team today.

Loading...

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.