Basement conversions in London

Explore the possibilities beneath your home, from refurbishing an existing cellar to proposals for a new basement.

Make more of the space beneath your home

A basement can provide room for living, working or storage without extending into the garden. We discuss both existing-cellar renovations and projects involving excavation or underpinning in London. The work needed is very different, so the first step is understanding what is already there.

An existing cellar or a new basement?

With an existing cellar, we need to look at height, moisture, access and the condition of the structure. Creating a new basement requires specialist engineering and a construction plan that accounts for the house, ground conditions and neighbouring buildings.

Deal with water before choosing finishes

Waterproofing needs specialist design, with drainage and maintenance considered alongside it. We will discuss the specialist input your project needs and make sure installation responsibilities and any warranty are agreed in writing. Decorating should never hide a water problem that has not been resolved.

Plan a room that is comfortable to use

Daylight, ventilation, stairs and usable ceiling height can make all the difference. Tell us how you want to use the basement and send any plans, surveys or photographs you have. Planning, building regulations and party-wall advice must be checked for your property.

Your questions

Can you discuss a new basement as well as an existing cellar?

Yes. Tell us whether the space already exists or excavation is proposed. The structural assessment and specialist design needed will differ.

Does waterproofing need ongoing maintenance?

Some systems do. The design should explain the maintenance needed, who installs the system and the terms of any warranty before work starts.

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