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Loft Conversion Builders North London

Loft Conversions are an ideal solution if you need to add extra space to your London Home and a regular house extension is not an option due to lack of garden space. We provide remarkable solutions for your attic conversion project. Our team of skilled builders has years of experience in this field of work. We work under fully insured conditions and with the accreditation of the Federation of Master Builders. We deliver a high-end finish to every project. 

Velux, Dormer, Mansard and Hip to Gable Loft Conversions

There are so many things to consider before starting your loft conversion project, such as the size, type and age of your property, the shape of your roof and of course, your household’s needs. So what are the main types of loft conversions out there and how will they transform the look of your home? 

Roof Ligh Conversion

With this popular type of loft conversion, you can remodel your attic into a bright living space. To get this done, our team of skilled loft conversion builders would need to reinforce the floors and add quality triple glazed roof windows, such as Velux, to the roof. 

Flat Roof Dormer 

This kind of transformation is prevalent among home-owners in London because it does not require a great deal of change. Our team will build a vertical wall from the slope of the existing roof. After that, a flat roof is constructed, giving the conversion a box-like shape.

Mansard Conversion

Mansard loft conversions are usually found at the rear of the property and are very popular in terraced houses. To build a mansard loft conversion, our team would alter the design of the roof by adding a horizontal edge and a 70 degrees inwards inclined wall.

Hip to Gable 

With this type of loft conversion, one side of the house (or both) are replaced with a gable wall. In order to achieve this, we would remove the sloped side of the roof and erect a triangular vertical wall, connecting the space between the central ridge and the new wall and tile it over.

Loft Conversions London Dormer Velux Loft Conversion Builders
Roof Light Velux Loft Conversion

Roof Light (Velux) Loft Conversion

Dormer Loft Conversion

Dormer Loft Conversion

Mansard Loft Conversion

Mansard Loft Conversion

Hip to Gable Loft Conversion

Hip to Gable Roof Conversion

What is the average cost of a Loft Conversion in London?

This will largely depend on the size of the project, as well as the interior finishes. For example, if you want to build a luxurious bathroom or fit custom-made wardrobes, it will affect the final price. The following amounts are ballpark figures only. 

Roof Light (Velux) Loft Conversion


With one large Velux Window on each side of the roof

Dormer Loft Conversion


With a double bedroom and an en-suite bathroom

Mansard Loft Conversion


With two small bedrooms and one bathroom

Hip to Gable Loft Conversion


With roof being extended on one side of the property

How much Value will a Loft Conversion add to my London Home?

A loft extension incorporating a double bedroom and a bathroom could add up to 20% to the value of a three-bedroom house. With London's average house price standing at £626,000 in September 2019, this represents £125,200 increase in value on average, which far exceeds the cost. 

Request a Loft Conversion Quote

During our free estimate, we offer the benefit of our experience and advise you as to what are the best options available for you when it comes to converting your attic. We will then prepare a price quote based on the size and type of your loft extension and the choice of materials. If you choose our team of skilled building specialists to construct your loft conversion, we will deliver premium quality results within the set deadline.

We operate across North and West London including Westminster, Kensington, Camden, Hampstead, Golders Green, Finchley, Hendon and Barnet. We also cover parts of Hertfordshire including Bushey, Watford, Elstree, Welwyn Garden City, Borehamwood and St. Albans. .

Call Us: 0208 200 2327

Contact Details

Call Us:  0208 200 2327
Monday - Friday  
9am - 4pm

Our Office

Kingsbury House 
468 Church Lane