house extension builders

Local Builders in Chiswick

Proficiency's extension builders have the right team to construct your dream project. The fundamental requirements are a client with a vision and a team of qualified specialists. The best builders in Chiswick include interior designers and architects. With Proficiency Design and Build, you get to achieve the dream home that suits your needs and style.

High end extension builders
extend your home

Chiswick home extensions

House extensions in W4 give you that extra space that you need. Perhaps you need additional rooms to accommodate your growing family or visiting guests? Combine this with a property refurbishment of your entire home? We have the solution! With Proficiency professional builders in Chiswick, you’ll be able to get a new livable space suitable for you.

Bespoke home extensions
property extension
Luxury extension in Chiswick

Design and Build Service

End-to-end local house builders in W4

Proficiency building company utilise their years of experience and expertise in home improvements to deliver quality work. With our recommended builders in Chiswick, we can handle large and complex building projects. An in-depth understanding of the property market and challenges enables us to guide you from start to finish.


open plan kitchen extension
The Avenue, Queen's Park

Rear and side extension
View Project

navy blue kitchen
Islington, Canonbury

Rear Extension
View Project

Cambridge Road, Twickenham

Extension & Loft Conversion
View Project

Hillfield Road, West Hampstead

Wrap Around Extension
View Project

Cost of a home extension in Chiswick

Your budget and the size of your project play a significant role in determining your house extension cost. Other factors that impact the price include the design, property type, planning authority and preference. Proficiency's project manager works with builders and architects to ensure that everything falls within your budget. Value addition and cost-saving are among the top priorities for our project management. From the plans drawn up to purchasing high quality materials, we always ensure client satisfaction. Proficiency builders in south London has completed numerous project working in areas like Fulham and Chelsea.

Building services

open plan kitchen extension

Kitchen extensions

The right team helps you to choose the best kitchen extension design that fits your lifestyle, budget and needs. To create a functional kitchen, you need the best available team.

House renovations

You like your home, and moving or demolishing is not an option. You need a house renovation service that will uplift and give a new life to your home.

bright grey loft conversion

Loft conversions

Extend upwards into your roof space by converting your attic. Let Proficiency to design you a luxury loft space.

Basement Conversions

Extend downward to create a bespoke living space or wine cellar. If you want top quality, you need the best materials to create that luxurious feel. To do that, you need the best builders for the job.

About construction company

Every project we undertake, customer satisfaction is a priority. Years of experience render our work as unique and of the best quality. Be it a home renovation project, kitchen extensions, loft conversions, or refurbishments, the commitments remains the same. For every project, the project manager selected is the client’s single point of contact through the project. Other than being FMB insured and NICEIC approved, we issue our clients a 15-year structural guarantee and a completion certificate at the completion of the project.

Building a room

Request Consultation

Get in touch with trusted chiswick builders to discuss your building project needs. At Proficiency Design & Build, our team of professionals is ready to help and guide you. Our company is prepared to build your dream home.


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