Completed basement conversion in London featuring open floor plan
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Considerate Construction Scheme

Basement conversion in Fulham

Cellar conversions allow you to add a playroom or valuable living space to a house. You have to be very selective when it comes to picking a construction team for a renovation in Fulham. Hire conversion specialists who have experience in basement conversions and have built a good reputation. Proficiency Builders offer services for any basement conversion needs.

extra room in lower ground floor

Down is the new up. In a city where space is a scarce resource, one solution is to dig deep.

Extend Your Property Downward

Today, over 8 million people live in London. If you have outgrown your family home, then you will need additional floor space. You have to either move out or find building contractors that offer home extensions in London. Basement extension projects take some time. It’s also important to note that basement conversion Fulham services are expensive. On the other hand, renovated basements impress with end results. Basement extensions are stunning from floor to ceiling. But most importantly, such renovation projects make it possible to add plenty of space to the building.

basement converted in Fulham
underpinning
cellar

Design & Build
Basement PROCESS

Free On-Site Consultation

We start with a complimentary site visit at your property to assess feasibility, understand your requirements, and discuss potential layouts

Planning & Design

Our in-house architects create a custom design based on your vision. We handle planning permission applications and liaise with local authorities for smooth approvals.

Excavation & Structural Works

Our expert team excavates and reinforces your basement space, using underpinning or piling where necessary.

Waterproofing & Drainage Installation

Delta Membrane Systems provide long-term damp protection. We install drainage pumps and ventilation systems to maintain a dry, comfortable environment.

Fit-Out & Interior Completion

Bespoke finishes tailored to your style, from flooring to lighting. Full electrical, plumbing, and heating installations.

When you convert with Proficiency Design & Build it means you're teaming with specialists in high-end basement construction.

LATEST PROJECTS

open plan kitchen extension
The Avenue, Queen's Park

Rear and side extension
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navy blue kitchen
Islington, Canonbury

Rear Extension
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kitchen
Cambridge Road, Twickenham

Extension & Loft Conversion
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Modern house renovation
Conewood Street, Highbury

Side Kitchen Extension
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Basement Conversion Fulham Costs

The service costs depend on many factors. Homeowners have to make many important decisions at planning, design and build stages of refurbishment projects. Cellar conversions require a lot of planning work. You have to come up with basement shell design ideas. Do you want to add a gym, sauna, swimming pool or, maybe, utility room to your house? You also have to pick materials to build the construction. Contact a building firm to get a service quote ahead of time!

WHY OUR BASEMENT COMPANY

  • Experienced Local Experts - Knowledge of Fulham’s Victorian and Edwardian properties ensures seamless approvals.
  • 20-Year Waterproofing Guarantee - Using Delta Membrane Systems for complete protection.
  • Planning Permission Experts - Proven success in securing approvals from Fulham’s local council.
  • Custom Design & Fit-Out - Tailor your basement for a gym, home cinema, wine cellar, extra bedroom, or office.

End-to-End project management from planning and excavation to waterproofing and interior finishing.

Building a room

Book an Initial Consultation

If you would like to learn more about the benefits of cellar conversions or just want to clarify some questions about basement policy, contact Proficiency Builders today!

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