London Loft Conversion Specialists

It’s been said that loft conversions are the best way to add value to your home – they add a whole new floor, increase the total square footage, increase the number of rooms and potentially bathrooms, and, in general, create a more spacious home. Attic conversions also tend to be more cost-effective than other extensions, won’t take space from your garden, don’t even need any outdoor ground space and usually don’t need planning permission. So what are you waiting for? Unless you have lots of items to store in your loft, it will usually be a space that goes unused and wasted, so consider contacting a London loft conversion company to convert that empty space into a spacious living area, attic bedroom, home cinema, snug or games room. Worried about loft conversion costs? It could be less than you think, enquire with local loft conversion companies in London to find out. More
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  • House Extensions
  • Loft Conversion
  • Loft Restoration
London Loft Conversion Experts, and officially London's FMB Master Builder. There are more people in London... Read More
  • 0845 519 4321
  • Richmond-Upon-Thames KT1 4DB, Greater London
Loft, Bathroom & Extension Specialists
London's Personalised & Stress Free Whole Home Build Service
We believe making your home beautiful should be beautifully simple. We’re here to understand what you need and...
  • 020 3872 0696
We deliver quality loft conversions for clients throughout West London, South West London & South East London.... Read More
  • 020 8166 5145
  • Chiswick W4 5YA, Greater London
London Loft Conversion Specialist With Keen Eye For Detail & Quality
Specialising in loft conversions, Artemia delivers exceptional home building and renovation services. We adopt a...
  • 020 3974 2432
LLAC – London Lofts and Construction has been operating in and around London for over 10 years. Originally... Read More
  • 020 3797 6454
  • London N22 6XJ
London Trusted Specialists in Extensions & Loft Conversions
We are a well-established and reliable team of contractors specialising in high quality building extensions,...
  • 020 3870 2562
We are a London based building company delivering exceptionally high standard services, specialise in most... Read More
  • 07577 255975
  • London N22 8YP, Greater London
For over three decades, we have been installing loft conversions in homes in London and within the M25. We focus... Read More
  • 0800 634 8271
  • London SW18 4JJ, Greater London
Over 25 years experience in providing building services Public Liability insurance Qualified and experienced... Read More
  • 07958 547259
  • London E10 6LW, Greater London
Concept Lofts are the proud designers and installers of high-quality loft conversions and carry out loft... Read More
  • 07552 016402
  • London IG10 2QP, Essex
A1 is a family business, founded in 2000 by Steve Mills, who, during his early career in loft conversion... Read More
  • 0800 019 2678
  • Walton-on-Thames KT12 4JZ, Surrey
  • 0800 954 5334
  • london E106LT, Greater London
We specialise in 100% loft conversion and design projects. Our surprisingly affordable projects are constructed... Read More
  • 020 4311 5612
  • London EC1V 8DX, Greater London
C Dingle Builders are a family run business with over 40 years experience in the building trade. We pride... Read More
  • 024 7771 0321
  • Tadworth KT20 6TX
Griffon Construction is specialising in high end extensions loft conversions and renovations across London,... Read More
  • 020 8252 1502
  • London IG2 6LU, Essex
Savalan Solutions have a good reputation among Clients which is built upon the principles of providing a reliable... Read More
  • 07767 063436
  • London, Greater London
Increase Space create and deliver beautiful kitchen extensions, London Loft Conversions, basements and... Read More
  • 020 7111 0952
  • London SW11 1EG, Greater London
West London loft conversion company provides services: loft conversions and extensions. Read More
  • 07779 877793
  • Acton W3 8LN, Greater London
Featured Reviews for Loft Conversion Specialists in London
City Lofts London
Loft Conversion Specialists in London
"City Lofts London came highly recommended to me through a friend when I decided to have a loft conversion. After initial consultation was prompt and the team had a plan of action in place. It was not easy as we had to live in the house whilst the work was in progress. But the project was carried out complete to our satisfaction and consideration to neighbours during work. I since have recommended City Lofts to our friend wan family who came around to see the new lofts room."
- susangoldberg1951
Ash Island Lofts
Loft Conversion Specialists in London
"I have no hesitation in recommending Ash Island Lofts and Extensions. They completed a double mansard and rear addition extension for us on time and on budget as well as to a very high standard. We chose them because they were professional and knowledgeable from the start and promised to complete our works in 8 weeks when most other companies we saw were vague about the time or told us it would take 16 weeks. We found Ash Island to be very reliable at dealing with any little issues along the way, including slight changes – everything was handled fast and actioned immediately. The actual building team were just incredible, they worked so hard and nothing phased them – including carrying my very heavy soundproofing boards up to the 3rd floor. All in all I found Ash Island to be honest, responsive, caring and professional. Our double mansard and rear extension have really exceeded expectations both quality and design wise – I would definitely use Ash Island again and highly recommend them."
- sandberg_louise
LLAC Construction
Loft Conversion Specialists in London
"Our loft conversion has been completed by llac construction over a year ago. Very happy with the entire team but Ylli is just amazing, he gave us so many great ideas! Took about 7 weeks from start to finish. No wonder I see llac signs all over Walthamstow. Thank you"
- nick K
PMB Construction (UK) Ltd
Loft Conversion Specialists in London
"PMB Construction have done a fantastic job on the complete architectural refurbishment of our period house. The director took the time to understand our aims and concerns and worked closely with us with courtesy and intelligence to realise the design while keeping costs to the original budget. He was always calm and competent, happy to accommodate small changes where needed and spending the time required on site to get things right. He knew how to pick his team, they were all fast, competent and respectful with excellent office backup. We felt very lucky to have worked with PMB Construction and could not recommend them more.."
- tojaska
Central London Lofts
Loft Conversion Specialists in London
"The non-standard specification and demanding quality requirements were met. This was my first loft conversion by CLL being a copy of a loft next door that another builder constructed for me a year ago. The scope of this hip-to-gable dormer loft conversion encompassed assistance with drawings, replacement of the boiler and consumer unit, then cupboard building and decorating. Requirements were quite comprehensive, and whilst relatively straightforward were sometimes non-standard. Further, I was on-site throughout monitoring work first-hand. Neither my requirements nor my presence were a threat to CLL...we worked together well resolving the inevitable technical issues calmly and effectively. The main builder, Vlad, provided continuity from start to finish carrying out a large part of the work personally (e.g. roofing, steel work, carpentry, window fitting, built-in furniture) supported when required by specialist tradesmen (e.g. plasterers, plumbers, electricians). His approach was nothing less than excellent, being experienced, objective, trustworthy and willing to push for things to be right. And what a pleasant guy with time for some humour. Barry and other management were also straightforward and pleasant to deal with throughout the work. So, quality was good, timescales were underestimated a little (but this never lead to corners being cut), and it was on budget. Could the odd thing have gone smoother...yes of course. Am I pleased with the result...absolutely...in fact we all took a few photos along the way!"
- nick_veit
Saspol ltd Building Services
Loft Conversion Specialists in London
"I have used Saspol many times over the last 8 years for jobs ranging from roof repairs to installing a completely new bathroom. Most recently used for chimney rebuilding and roof repairs. I have always found them to be reliable, courteous and honest. I have always been satisfied with the high quality of their work, as have the many friends and neighbours who have used them on my recommendation."
- Alan
Concept Lofts
Loft Conversion Specialists in London
"Jake did an excellent job for us, we are really happy with the way it has transformed our house! We had a few quotes and although Jake wasn't the cheapest his was the most professional and I'm glad we chose to go with him. Our quote was very detailed and the build went quicker than the schedule said which was a bonus! it was about 18 working days from start to finish for our loft which was brilliant. Jake was very informative all the way through offering up his thoughts on the layout and changes that could be made to utilise space or help the building flow better."
- Alex Cruickshank
A1 Lofts and Extensions
Loft Conversion Specialists in London
"A1 were dubbed as one of the best loft conversion companies and they definitely lives upto their reputation when they did mo cinversion. It was the first time I ever undertook suck a project and the process was just seem less. The after care support was fabulous and never refuse to help out. I thoroughly redomend them."
- Shiraz Chanawala
Brygola Constructions Ltd
Loft Conversion Specialists in London
"Prior to work commencing on our loft extension and kitchen, my husband and I had a number of meetings with Mr Brygola concerning the anticipated work. It was clear from those meetings that Mr Brygola was an extremely knowledgeable and experience builder. He presented himself professional throughout. My husband and I were overjoyed with the results, the work has been completed to a very high standard. Mr Brygola is very thorough and takes pride in his work. His team of builders are a credit to him. They arrive early doors and do not finish until the day's work is complete. They are friendly, respectful and tidy."
- lisajohnconn
Danny Taylor
Loft Conversion Specialists in London
"Danny and his team did a great job building and renovating our complete house. We worked with Danny on a big project in our old house in 2005 and decided to hire him again for our new home. The work included many details that Danny took care of the smallest one. Danny and his team (project managers and workers), kept good communication with us throughout, explained any issues that came and worked with us on every detail. The final turned out fantastic and we are overall pleased with the work. We will definitely hire him again."
- Sam Dovinski
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Although loft conversions usually don’t require much external work and it could appear easy to carry one out by yourself, there are numerous elements involved that mean it would be better to call in a London loft conversion company or specialists. First, there’s the structural element. Lofts have been built the way they have in order to keep the roof up and the house structurally sound, so messing around with its layout and setup without knowing what you’re doing could prove disastrous. Bungalow loft conversions are often popular as they double the amount of floor space in your home, but they are sometimes not built to have a second load-bearing floor inside and the structure could become unsafe if you don’t do it properly. There’s also insulation to consider – roofs are very different from internal walls and the way they are insulated will be different too. How you get up to your new floor will also take careful planning; unless you are happy to use a ladder for years to come, you’ll need loft stairs installed which is no mean feat. And then not to mention the installation of skylights or the bigger project of installing dormer windows.

Once you’ve looked at various loft conversion plans and ideas, and you think it may be possible to carry one out in your home, look for loft conversion companies in London that can advise you on prices and how they would carry out the conversion.

What are the different types of loft conversion?


Loft conversions vary depending on the type of house and roof you have, how it has been constructed and how much space you want. Talking to a London loft conversion company about your loft conversion plans will help you decide which one is really the most suitable, but here’s a simple breakdown of each type:

Standard conversions in sloped hip roofs will not change the structure of the roof itself and windows will be installed flush to the roof as skylights. Inside the loft there may have to be structural changes, such as removing trussed rafters and installing beams across the floor level. This will be the most simple loft conversion and will usually not require planning permission if the changes to the external roof are only the addition of windows. A level up from this would be a dormer loft conversion where the windows are not flush to the roof but protrude outwards in a dormer window extension. This means you can have normal, vertical windows and headroom is increased. Planning permission is often not needed with this conversion either, but the external change is greater and windows could overlook neighbouring properties, so it is very important to check with your loft conversion specialists or the council first.

Larger structural changes are made in hip to gable loft conversions and mansard loft conversions. Hip to gable involves changing the side sloping roof to a straight wall, extending up from the side wall of the floors below and creating only two sides to the roof itself, front and back, in what’s called a gable roof. This adds extra room at either end of your loft if in a detached house, or to one house if semi-detached. Hip to gable conversions are not possible in terraced houses unless you are at the end of the terrace. Mansard loft conversions involve changing either the front, back or both sides of the roof to an almost vertical wall with a flat top. The top and wall usually slope slightly so as to allow rain to run off the roof still. Creating a mansard roof will dramatically increase space inside your loft and can be carried out on terraced houses, but it is a much bigger and costlier change. Hip to gable and mansard conversions are much more likely to require planning permission, so check with your local authority, or possibly with local loft conversion companies in London who would know, if you’re planning on one.

There are also roof lift conversions that involve raising the whole roof in order to give more headroom inside your loft; quite a major project but there will be specialist loft conversion companies in London that can carry this out for you if required. Once you’ve looked at the London loft conversion specialists near you, consider the other professionals that you may need to hire to finish your attic to a high standard. Here are some related professionals and vendors to complement the work of loft conversion specialists: .

What should I ask a London loft conversion company?:


  • What loft converting experience do you have?
  • Can I see testimonials from previous clients?
  • What types of loft conversions do you offer?
  • What type of loft conversion would be best for my house, requirements and budget?
  • Will I need to get planning permission for my loft conversion plans?
  • Are there any specific loft conversion building regulations?
  • Do you offer insulation and loft flooring? How will my loft space be finished?
  • Do you put together loft conversion designs?
  • What will my loft conversion cost?
  • Do you offer written estimates?
  • How much disruption will be caused to the rest of the house?
  • How long do you estimate the conversion to take?
  • What else should I consider when converting a loft?

Find loft conversion specialists on Houzz. Narrow your search for a London loft conversion company by entering your nearest city or postcode. Look at photos and read reviews to find the best loft conversion companies in London for your home.
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