What should I expect from a loft conversion company?

A specialist loft conversion company will handle the process from design through to completion. This includes providing detailed plans, dealing with planning permission or permitted development checks, ensuring structural safety (including joist strengthening and fire safety compliance), and managing all trades involved. You should expect transparent pricing, a clear schedule, and full adherence to Building Regulations.

Do loft conversion companies need insurance?

Yes. They should hold public liability insurance to cover property damage or injury, and employer’s liability insurance if they have a team. Companies offering design or structural services should also have professional indemnity insurance.

What questions should I ask before hiring a loft conversion company?

Ask whether they’ve completed similar conversions in properties like yours especially if it’s an older or listed building. Check who will manage planning applications and building control, what their typical timelines are, and whether they offer a fixed or itemised quote. It’s also useful to confirm how they handle unforeseen costs, subcontractors, and any aftercare once the project is complete.

Do I need planning permission for a loft conversion?

Not always. Many loft conversions fall under permitted development rights, especially dormer and rooflight-style conversions, provided they meet specific volume and set-back rules. However, if your home is in a conservation area, or you’re altering the roofline significantly, planning permission is usually required. A good company will guide you through the permissions process from start to finish.

How long does a loft conversion usually take?

The timeline of your loft conversion will vary lots depending on the size and type of conversion. A straightforward Velux or rooflight loft conversion can take around 4 - 6 weeks, while a dormer or mansard conversion may take 8 - 10 weeks or more. A loft conversion company should provide a clear schedule tailored to your design and property.

Find Local Loft Conversion Companies Near Me

Some of our top rated loft conversion companies

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Oakvalley joists and roofs
Rating: 3 out of 5
We are a team of highly skilled carpenters with our own joinery shop specialising in conservation carpentry, traditional cut roofing and oak frame manufacture. All other aspects of carpentry and joinery undertaken with over 20 years experience
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Latest review:
Carpentry- 1 Aug 2021
Unfortunately they turned down job due to being too busy
Ford Williams construction
Rating: 3 out of 5
We are a local construction company. Undertaking all aspects of construction specialising in carpentry. We offer a quality and affordable service with customer service at forefront of our priorities.
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Latest review:
Carpentry- 8 Aug 2022
We received his quote which were were inclined to accept, although we couldn't get firmed up on a suitable time/date for him to do the work. I have therefore been looking elsewhere.
A.d.s building & maintenance
Rating: 3 out of 5
I'm Sam snith owner of the above company, we have been trading nearly 15 years, no job is too big or too small We specialise in extensions, renovations l,alterations but cover a vast amount of different aspects too, garden walls, patios, fencing any many others. Building work is our passion and we are fully committed to the end result, and we will give you a job to be proud of.
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Latest review:
Loft Conversion- 26 Nov 2021
Do not hire this builder, have had to search for another builder to repair all his faults, could not follow structural plans and my house leaked for whole of build, avoid at all costs
Km joinery
Rating: 3 out of 5
Specialists in Landscaping Fencing Decking Garden rooms Laminate flooring
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Latest review:
Fencing- 31 Dec 2022
Kai and his team did a fantastic job and to my specifications. He was quick to come out and scheduled the job well ahead of the other quotes, I'd recommend and will use again if need to, thanks!
LB Carpentry
Rating: 3 out of 5
Do all aspects of carpentry & joinery to a high standard, have always done site work 1st & 2nd fix
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Latest review:
Joinery & Cabinet Making- 10 Apr 2019
What a great lad, came over in the evening to do a site visit and came back promptly with a very competitive quote. I had to delay start briefly as I had no labour to help me remove old roof. Liam stepped into the breach and helped me with this. The following week he was there on time and ready to go not phased by slight delay because of weather & unseen snags with levels, sorted by my bricklayer another My Builder member. Liam will work well and safely on his own with a full kit of his own professional tools and his output is tremendous. On the first morning of deck job I had to go out for a while,I returned and was amazed at what he had achieved on his own, we are talking 5mtr 9" x 2" beams lifted up onto a structure and fixed. At all times he worked in a seamless professional manner, with a positive plan for the job, discussing any unforseen snags with an appropriate solution before overcoming them. Liam was always polite and courteous carrying out a marvellous job in record time for me. I have other jobs that I would not hesitate to employ Liam on as soon as he is free I can be fussy with my jobs, my background was Maintenance Manager at a London Uni and I have exacting standards. Liam met all my criteria. Don't be put off by his youthful looks, this is one good tradesman with old school skills and ethos. My long term friend who did the final roof cover, a specialist Flat Roof Contractor for 40 years+ commented on what a good roof he had built.
RC.Carpentry&Construction
Rating: 3 out of 5
RC Carpentry&Construction is a carpentry based business with all aspects of carpentry undertaken to a very high standard and always aim to provide the best customer service. We have also got a very good knowledge and experience in the Construction industry with all aspects undertaken which include •roof structure and roofing specialist •timber frame superstructure specialists •garden builds and decking •cladding •all aspect of carpentry •window fitting •extensions •loft conversion's
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Latest review:
Roofing (Pitched)- 20 Mar 2022
We were very pleased with the work that Ryan Carre completed on our summer house which had the roofing felt removed during the recent storm. He did an excellent job, arrived promptly and was very pleasant, and we would certainly call him again should we need to.
Rightday ltd
Rating: 3 out of 5
Right Day undertakes demolition, groundwork and foundation work in commercial, residential and industrial. We are committed to delivering high quality services on time. Our primary focus is safety, ensuring that clients can have complete confidence that we will deliver the service in compliance to health and safety regulations.We can provide a range of different options that are tailored to your needs.
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Latest review:
Demolition- 28 Sep 2021
They were very efficient and did the job very quickly.
G.b building and construction ltd
Rating: 3 out of 5
building company who been in trade for 20 years and do new builds to extension and alterations
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Latest review:
Bricklaying- 29 May 2020
Sonny built a new chimney surround, lay a hearth and bricked up a window & door in our newly converted lounge. We were very pleased with the work that Sonny completed for us. The quality of all the work was to a high standard, and he always left the workplace tidy at the end of a day's work. In addition, he was reliable, helpful and friendly. Finally he was reasonably priced. I would have no hesitation in recommending him to others.
SW Joinery & Building Solutions
Rating: 2.7 out of 5
✅️FULL SKILLED JOINER>CARPENTER ✅️FULL OF BUILDING KNOWLEDGE ✅️WE COME WITH THE RIGHT TEAM ✅️WE ARE MULTI SKILLED ✅️GREAT TURN AROUND ✅️VERY POLITE AND HELPFUL
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Latest review:
Loft Conversion- 31 Mar 2023
The dormer loft conversion went smoothly and to plan. Shane worked with the design company and building control to ensure everything was to code. He used his own subcontractors for electrical work, plastering, and decorating so everything was well coordinated and there were no significant delays. The final result is excellent.
Jt heating specialist ltd
Rating: 3 out of 5
We are a family run business with over 25 years experience, we undertake all jobs within the building industry there are no jobs to big or to small we cover many areas within the building industry from all aspects of plumbing and heating, full design and fit of bathrooms and kitchens, plastering, paint & decorating, extensions, loft conversions and many other aspects within the trades. We deliver a very friendly and reliable service and take great pride in what we do. Hope to here from you soon
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Latest review:
Kitchen Fitting- 1 Mar 2022
Some of the work was left unfinished and I needed to get someone else in to complete it.
Carpenter
Rating: 3 out of 5
I'm a qualified professional carpenter, NVQ 3 level Diploma in Wood Occupations , construction,gold CSCS card 👍. Many years experience in construction industry, doing all aspects of carpentry work, woodwork, 1 fix , 2 fix , .... etc. All jobs 👌done professional, high quality. I done lots of work for Rated people and I received only a positive feedback ( 5 🌟) I will do my best for everyone , on my builder . Always ready for new challenges, and willing to do it! Just trust me! Thanks 😊
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Latest review:
Carpentry- 29 Jul 2021
He was a right misery with too much negative energy. He left a mess throughout the flat, wood shavings everywhere for me to clean up.
King Roofing
Rating: 3 out of 5
💥 King Roofing 💥 🏡 New builds/ Re Roofs 🏡 All repair work 🏡 Lead flashings 🏡 Chimney removal and repair 🏡 Roof Windows 🏡 Roof ventilation 🏡 Flat roofing 🏡 Facia and soffit (PVC and Wood) 🏡 All Guttering 🔨Free quotes🔨
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Latest review:
Roofing (Pitched)- 24 May 2020
Great job by Jack. Absolutely no hassle, quick and reliable. Cheers.
SST Homes LTD
Rating: 3 out of 5
Here at SST Homes, we have been providing building services for over 15 years. We take great pride in carrying out all types of building works including New builds, Renovations, Extensions, Loft conversion, Commercial projects, Maintenance contracts and Smart Homes.
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Latest review:
Extensions- 13 Nov 2020
Avoid these traders. They are amateurs and have caused me no end of pain with a small single storey front extension. I sacked them in the end as we just could tale anymore of their slap dash approach.
EcoBuild Services Limited
Rating: 3 out of 5
A trusty local company specialising in domestic and commercial works, covering all trades with the correct certification!!
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Latest review:
Groundwork & Foundations- 29 Jan 2021
Sam was excellent throughout the whole process. Explained what needed to be done, any potential risks and did the job in the timescale and agreed cost. Look forward to working with him more in the future. Raj
Capital building contractors
Rating: 3 out of 5
North London based building company committed to provide highest quality service by experienced and highly skilled tradesmen. A team of 3 young tradesmen with an combined experience of over 3 decades in different trades like Carpentry, tiling, painting & decoration, electric and plumbing.
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Latest review:
Bathroom Fitting- 2 Nov 2021
Fair. I think in this stay n age tradesman take jobs that they can’t complete
In Out Constuct
Rating: 3 out of 5
My company In Out Construct we are a professional building company which you the client can fully trust. We specialise in most building aspects such as : Refurbishments, Wall openings, structural steel installations, Loft conversions, removal of chimneys, kitchens, bathrooms installation, Kitchen extensions, painting decorating. We always aim to fulfill our customer needs, comply with all British Standard regulations and make sure all our work is of best standard, and complited on time.
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Latest review:
Kitchen Fitting- 16 Jul 2018
Very good work and completed on time. Highly recommended.