Loft Conversions South London

The LMB Group has been creating beautiful, bespoke loft conversions for customers across South London for more than 30 years.

Our highly skilled craftsmen and construction professionsals provide only the highest quality loft conversions including: Dormer Conversions; L-Shaped Conversions; Hip-to-Gable Conversions; Mansard Conversions; Bungalow Conversions and much more.

We work with the finest materials and suppliers and aim, wherever possible, to provide sustainable yet affordable resources for both our residential customers and commercial clients across South London and beyond.

South London’s Premier Loft Company

The sky really is the limit when it comes to a loft conversion constructed by LMB Group. For our customers across South London we deliver loft conversions that are second to none.

Whether you are looking for:

  • extra bedrooms
  • nursery
  • home office
  • hobby area or gym

An LMB Group loft conversion will not be beaten in terms: Quality; Affordability and Sustainability.

We can include bathrooms, wet rooms, walk-in wardrobes, or even add solar panels to the roof – all the while adding considerable value to your South London home.

Read on to discover a wide choice of loft conversion options…

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Dormer Conversion

A dormer conversion has remained one of the most popular conversion styles for South London-based homes for a number of years. As the most straightforward form of loft conversion, a dormer conversion uses a vertical roof extension to create additional headroom within the property. An additional benefit of building such a conversion is that it does not necessarily require planning permission. At LMB Group our trusted team will help you work out all aspects of the build, before, during and after to make sure everything is just the way you wanted it to be.

L-Shaped Dormer Conversion

You may wonder whether, if you live in a smaller home that a loft conversion may not be possible at all. Well, we can tell you that for most houses, it is. For example, the L-shaped dormer conversion is ideal for mid-terraced houses as it combines two dormer extensions which join together to form an L-shape. Depending on the size of your South London-based property, an L-shaped dormer can add anything between 20sqm-50sqm, giving a great deal of extra floor space as well as plenty of eaves storage.

Hip-to-Gable Conversion

Although it sounds a little complicated, a hip-to-gable conversion basically involves replacing the sloping part of your roof (the hip) with a vertical wall (the gable). A hip-to-gable conversion is a great option for bungalows, detached or semi-detached properties – and is an ideal fit for customers with 1930s properties – good news for many South London residents where this style of house abounds. To provide maximum floor and head space, we can build a double hip-to-gable conversion, or even combine it with a dormer conversion at the rear of your property.

Mansard Conversion

This type of conversion has been growing in popularity across urban areas over recent years – which is good news for our South London-based customers. Named after 17th-century French architect Francois Mansard, a Mansard conversion offers peak space but almost always requires planning permission from the local authority and is at the higher end of the loft conversion pricing spectrum. A highly individual looking loft conversion, a Mansard conversion is situated to the rear of the property and offers a stylish, flat-roof option.

Velux Windows

At LMB Group we work only with the finest names in the business and as such we are proud to be one of a few accredited and approved Velux Window and blind installers across the South London area. Over the years the stylish, well-made windows have become the first choice when it comes to providing your new loft conversion with natural light. Velux come in a range of designs and shapes and can be individually crafted to suit your specific loft conversion.

Finest of Finishes

Not only will LMB Group’s team of construction professionals deliver a safe, secure and stylish loft conversion but they can also provide a far-reaching finishing service that includes decorating services, installation of sound equipment, heating systems, air conditioning and much more, should you wish. At LMB Group, we are dedicated to delivering your loft conversion, your way.

Get in Touch Today

Our friendly local team is on hand to take your call, five days a week from 9am-5pm. We offer a free survey and a written quotation and our work comes with a full, 10-year guarantee. All our staff are fully trained and qualified in line with the highest UK industry standards. Call now on 0208 406 9907 or drop us a line, outlining which service you require, to:


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It was so wonderfully done; the attention to detail.
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Great team of guys, we had a really good relationship with them. They were very clean and they arrived bang on 8 am every morning.
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Great service. Very quick and very thorough in what they do. They kept me updated with everything they were going to do.
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It was so wonderfully done; the attention to detail.
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Because of the quality of work I’ve had done, I have already recommended and would recommend to other people to use LMB.
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Really nice, genuine people… The general package was really appealing.
Valley Road
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It’s like a new house! We have an absolutely much larger space, each child has their own area to play in, and papa and mama still hide out and work!