W4 Builders kitchen fitting, Chiswick, London

Loft Conversions

If you are looking for a loft conversion company in West or South London – look no further. Loft conversions and extensions are not only cost-effective, but also add value to your property.

Our team will work closely with either your, or our architects and interior designers, to ensure that your planned loft conversion is most suited to your property as there are several different styles of loft conversions, including dormer, mansard, hip to gable, and roof light loft conversions. we offer a full-service loft conversion or extension.

Our team at W4 Builders will carry out all the structural, cladding & roofing and internal finishes works within our experienced and long-established team, including works like heating & plumbing, plastering, flooring, tiling, kitchen fitting and decoration.

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Which Loft Conversion Is Right For You?


Rooflight Loft Conversion

A rooflight loft conversion is one of the simplest (and also the cheapest), and perfect for smaller spaces, as it retains the existing space, but simply but rooflights are added.

Dormer Loft Conversions

Dormer is one of the most popular types of loft conversion and probably the first one that springs to your mind when thinking about loft conversions!

Projecting out vertically from the slope of the roof, it uses standard windows as opposed to rooflights. Dormer also offers few variations.


L-shaped Loft Conversions

Perfect for properties that have previously been extended at the rear. They consist of an L-shaped dormer and are ideal for a bedroom with a separate bathroom.

Hip-to-Gable Loft Conversion

Hipped, slanted section at the side of your roof is extended and becomes a vertical wall (gable end) that is built up to the same height as the ridge. Great in semi-detached houses.

Mansard Loft Conversion

This one can pretty much add a whole additional storey to your home. It involves replacing the sloping roof structure with a wall that is almost vertical, so the final roof is flat.

Modular Loft Conversion

This is a quick and easy way to convert your loft using pre-fabricated loft conversions. They are constructed off-site, often with a steel frame, come ready-made. Once the roof of the house has been removed, the modular loft conversion is delivered to site and craned into position.

Full-Service Approach

W4 Builders offers a full-service loft conversion or extension. We’re certain you have a lot of questions like: is this an option for me? Do I need an architect / planning permission? How much does it cost? How long it will take? And plenty more! That is why we offer a no-obligation consultation with our experienced project managers to help you right at the start of your loft conversion journey!

Renovating your property is both an emotional and financial commitment. It requires patience, passion and a professional team like W4 Builders to get you through it! 

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