open plan kitchen and loft conversion in Clapham

Loft Conversions Clapham

Proficiency Design & Build is a luxury loft conversion specialist in Clapham. Recognised for their innovative designs and flawless finishes, Proficiency has transformed numerous lofts across Clapham into gorgeous living spaces. Proficiency is the go-to loft extension expert for those seeking exceptional craftsmanship and dedicated service for loft conversion in Clapham, consistently delivering unparalleled quality and bespoke solutions.

bright square loft bedroom

If you can dream it, we can build it. Our design team is an expert at converting lofty wish lists into reality.

Design and build loft company

Explore the possibilities of transforming your loft into a bespoke space tailored to your needs. Whether it's a luxurious master bedroom with an en suite, a bright art studio, a cosy home office, or a playful children's area, our expert team of builders architects, interior designers, and tradespeople is dedicated to bringing your vision to life. From sunlit rooms with Velux windows and floor-to-ceiling glass walls to balconies offering an escape for relaxation, we focus on maximizing space, light, and style to create your perfect retreat.


Step by Step, What to Expect from your Builders


luxury loft master ensuite bedroom
Russell Gardens, Holland Park

House & loft renovation
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


  • Quality craftsmanship: We pride ourselves on delivering superior craftsmanship that distinguishes us from our competitors.
  • Experience: With a longstanding presence in the industry, Proficiency brings a wealth of experience and skill to overcome any project challenges.
  • Customer service: Our client-centric approach ensures top-notch customer service throughout the project lifecycle.
  • Communication: We prioritize clear, consistent communication with clients to maintain alignment and clarity.
  • Competitive pricing: Offering reasonable and competitive rates, we ensure great value for our clients.
  • High-quality materials: Proficiency is committed to using premium materials, guaranteeing durability and quality in every project.
Building a room

Request Loft Quote

Discover how Proficiency can convert your attic into a beautiful loft room with our expert loft conversion services in Clapham. Contact us for any inquiries or to schedule a convenient time for our team to visit and discuss your plans.


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