London's leading loft conversion company - request a free callback from one of our design consultants

We are the only group in London specialising in the project management of loft conversions, extensions and refurbishments to include companies having attained Chartered Building Company, Chartered Architectural Practice and Chartered Building Surveyors recognition.

Loft conversions are one of the most simple and cost-effective means of increasing the size, liveability and value of your home. A Landmark loft conversion can provide you with the additional space you need without the disruption of moving. Let Landmark Lofts manage your loft conversion, and turn your dream of a perfect home into a reality. Read more

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Happy #ChineseNewYear for Sunday. No plans? We suggest @Chiswick_House #LanternFestival it's spectacular!

Final stages of this #LoftConversion in #SW2 using @MarleyEternit slates. What a view!

#loftconversion in #SW19 almost finished. See our banner in your borough? Call us on 020 3150 0505 for a free quote!

New #Putney build featured by @Homify_UK shows perfect match of traditional & modern

#Extension roof structure in place in #Kingston. More than just #LoftConversions. Call for a quote 020 3150 0505

some amazing #architecture in this year's shortlist

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Latest from our blog

How to keep your loft warm this winter

With winter at its peak, how are you keeping your loft warm?
Create your own cozy space in your loft and keep the cold out with these 5 top tips.
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Want a stress-free loft conversion?

Bryn, a software company director and his wife Helen who works part-time for a multiple birth & twins charity association originally bought their three bedroom house in Tolworth as a doer-upper.  With both of them working and five year old twins to take care of, they knew they needed a loft company that could take care of everything. Read More

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What our clients say

Everyone who visits is really impressed by the space we have created up here, the quality of the work and how it feels like a natural extension to the rest of the house.

Paula, SW18

We were hugely impressed with the quality of the job, the speed, finish, and customer orientation.

Peter, KT3

My experience with Landmark Lofts has been so positive and successful, I have been recommending them to friends of mine and I would definitely use them again.

Deni, W4

They were a pleasure to work with. Co-operative, patient, always took the time to explain.

Penny, TW9