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Loft Conversions London

Proficiency are a London-based loft conversion specialist, with the expertise and craftsmanship to create the stunning loft conversion in London that currently only exists in your imagination. We can provide a complete design and build service, helping you develop your ideas and design your loft conversion around the ways in which you’ll be using your space. We’ll listen to your thoughts, draw on your sources of inspiration (such as magazines and online) and we’ll ensure that your home improvement project delivers everything that you envisage. Should you already have an architect or design professional, we’ll work alongside them to bring the designs you’ve already developed, to life.

Having gained extensive experience in converting loft spaces throughout south London in areas like Chiswick, Fulham, Putney, Battersea and surrounding areas, our specialist team fully understand all of the components needed to create the ultimate loft space.

Let us take care of every step of the production process our ultimate goal is to ensure that you can enjoy a new and exciting space that not only exceeds your vision, but is also right for your property.

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Considerations for your London loft conversion

Loft requirements:

A Loft Conversion can add as much as 26% to the value of your home. However, in order for this to be achieved, there are various requirements that need to be considered. For which, an overview follows:

Planning permissions

As a London company, we are local to you. We fully understand the City’s planning permission process and the various rules that may apply to the suburbs. Should you need help in understanding planning permission, simply get in touch – we’ll be happy to help, provide advice and guide.

Building regulations

Building regulations define certain rules for protecting Health, Safety and Welfare of those who work on your loft conversion, as well as for you and your family. They also set out standards in relation to energy efficiency and sustainability. Our team are well-versed with building regulations, and will ensure that your project meets each rule, regulation and demand of this imposing piece of legislation.

Party Wall Agreement

A Party Wall Agreement applies when your property is attached to another property. This may be required for your project, our team will advise on this, should this be the case.

Headroom requirements

The minimum headroom requirement for a loft conversion is 2.0m. However, this basic measurement doesn’t really provide the complete picture. The way in which your loft conversion is designed, is not merely about meeting rules and minimum measurements – it’s also about creating a space that you’ll love!

Average cost of Loft conversion in north London

The average cost of all types of loft conversion in north london comes in at between £35,000 and £45,000 for a double bedroom with an en-suite; however it also notes that loft conversions begin at around £20,000. Always bear in mind that our quotes are provided completely free from charge and obligation – we’ll provide crystal clear insight into cost with no commitment required on your behalf.

So if you are looking for a Loft specialist – you have landed in the right place! For more information about our London Loft conversion services, please get in touch our team is always happy to answer any enquire you may have. And why not take advantage of our free no obligation consultation, giving you you the opportunity to discuss all the aspects of you project.

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Fabulous service form Proficiency. Everything went smooth and finished quicker than expected. I can highly recommend them..

- V. Dayana

Working Hours

  1. Monday           08:30 - 17:30
  2. Tuesday          08:30 - 17:30
  3. Wednesday     08:30 - 17:30
  4. Thursday         08:30 - 17:30
  5. Friday              08:30 - 17:30


Finchley Office

663 Finchley Road



Battersea Office

Tempo House
15a Falcon Road
SW11 2PJ