Loft Conversion Companies in Longfield

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 5 (4 reviews)

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Some of our top rated loft conversion companies in Longfield

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BREN Building & Renovations
Rating: 5 out of 5
Loft Conversion Company in Longfield
We run a building & renovations company. We’ve been in the construction industry for a combined 40 years and specialise in renovations and extensions, we also complete the following, All roofing types, kitchens, bathrooms, tiling, plastering, extensions, loft conversions, driveways and landscaping. Residential and commercial.
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Latest review:
Extensions- 13 Mar 2026
Great team and great results
Don Buildings Ltd
Rating: 4.9 out of 5
Loft Conversion Company in Longfield
Don Buildings Ltd Client satisfaction is our primary concern and goal. If you are looking for top quality efficient and professional service, so look no further Don Buildings Ltd is here for you For and on behalf of Don Buildings Ltd, Donatas
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Latest review:
Loft Conversion- 25 Aug 2015
Don did a great job on my loft extension. His team were professional and the work was completed to a high standard
CT KENT BUILDING GROUP LTD
Rating: 5 out of 5
Loft Conversion Company in Longfield
We are a distinguished building company with over 18 years of experience, delivering exceptional construction and structural solutions for high-value residential and select commercial properties. Our specialism lies in complex structural works and major building transformations, including load-bearing alterations, reinforced floors, ceilings and roofs, bespoke extensions, and loft conversions. We work in close collaboration with structural engineers, architects, and designers to ensure every element is executed with absolute precision, integrity, and compliance. Complementing our structural expertise, we offer meticulously delivered internal renovations, including luxury bathrooms and kitchens, bespoke tiling and flooring, and fully integrated electrical, plumbing, and heating systems. This integrated approach allows us to manage projects seamlessly from initial structural works through to refined, high-end finishes. We are highly experienced in working with listed and heritage buildings, combining traditional craftsmanship with modern construction methods while respecting architectural heritage and conservation requirements. Our work is defined by uncompromising standards, attention to detail, and a discreet, professional service. We pride ourselves on delivering exceptional results through clear communication, careful planning, and a commitment to excellence at every stage of the build.
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Latest review:
Always and everything is on time with his work..we have used his knowledge and expertise to help us design and build few more things around the house..many new ideas have come from his experience..must point out that the bathroom and shower room are his main jobs..
Master Build Carpentry Ltd
Rating: 3.7 out of 5
Loft Conversion Company in Longfield
N/a
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Latest review:
Carpentry- 7 Sep 2021
The cladding was due to start yesterday, Monday 6th of September. In the weekend, I was told they would come do a site visit on Monday instead of starting the job. They came on site yesterday morning and nothing was said about any issues. They said they would start the next day, Tuesday. I got a call at the end of the afternoon (around 5 pm) yesterday to be told suddenly that there are many problems; not levelled portions of frame (which can be easily rectified), no toilet on site (which they knew about - they knew also that the public toilet is only 50 m away), access problems which they also knew about ect... Suddenly a multitude of problems arised! They wanted more money. It is very obvious that they found another job somewhere. I would classify this sort of behaviour simply as not honest. Also expensive- I was quoted £4000 to clad a tiny first-floor(38 m2) . The overall cladding would be 75 m2 in total. Disappointing.
Harris Carpentry and building
Rating: 5 out of 5
Loft Conversion Company in Longfield
Harris Carpentry & Building is a Tonbridge based company covering all of Kent & Sussex, offering a variety of services such as extensions, loft conversions, kitchen & bathroom and general house renovations, patios. After 9 years of experience. As a company, we honestly and openly communicate and work at the highest standard to guarantee you the best experience and outcome. Attention to detail and completing all projects to an exceptional quality is our highest priority.
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Latest review:
Roofing (Pitched)- 21 Mar 2023
We recently have been in touch with Zak as we had a leak coming from a cracked tile on our roof. Zak was professional from start to finish. Very helpful, honest and thorough and when he and Ryan attended to carry out the work they were efficient, did a good job and followed up with us after and even went out of their way to inspect our whole roof to make sure no nasty surprises were lurking! Would highly recommend.
RS Homes
Rating: 5 out of 5
Loft Conversion Company in Longfield
We offer an affordable and competitive service locally for: Landscaping, Gardening & Garden Maintenance, Decking, Restoration & Refurbishment, Extensions, Conversions - General, Loft Conversions. With over 15 years experience in the construction and landscaping industry you can rely on us to provide a professional, punctual and trustworthy service. No obligation quotations provided upon request.
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Latest review:
Landscaping- 3 Jun 2021
On our first meeting I felt comfortable and was glad of input from Robin. Agreed to a plan and only had to wait a few weeks before work could start. All preparations made to protect my drive before skip arrived. All work carried out in a very professional manner and team were very polite and friendly. Even though weather was against ground works they provided shelter so work could continue. I’ve been very pleased with their approach and can’t fault the outcome. Although met with a couple of delays on garden furniture, (nothing to do with Robin and his team, circumstances outside control)all other aspects of this job have met with my approval. Was apprehensive of having people in but can honestly say there have not been any issues and when the skip was removed within an hour, Robin was back on site to clear and wash down the drive. So looking as good as new. It’s been a pleasure having them on my property and will look at using their services again in the future should the need arise. Nothing too much bother. So my thanks to them all.
Lux Contracts Ltd
Rating: 4.9 out of 5
Loft Conversion Company in Longfield
LUX contracts are a friendly,family run building contractor. We carry out all types of construction projects; refurbishments, kitchen and bathroom installations, conversions, extensions and electrical projects.Our team of tradesmen have many years of experience. We have completed numerous projects working closely with clients to ensure we understand and deliver a very high standard, meeting the clients requirements and expectations .
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Latest review:
Restoration & Refurbishment- 6 Oct 2025
Rich and the team have done a fantastic job completing my kitchen and hallway renovation. His team guided me the whole process and were great communicators. No problem was too big or small to handle. There were some issues through the job (due to the initial poor design of the kitchen when it was first built) but the team were quick to resolve this professionally. I would not hesitate for a second to recommend Lux Contracts. Next year, I will be booking them for the rest of the flat! I’m happy to be contacted by prospective customers if any further information is needed. Rhys Gallagher
Rightday ltd
Rating: 3 out of 5
Loft Conversion Company in Longfield
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.
A1 Carpentry and Joinery
Rating: 4.8 out of 5
Loft Conversion Company in Longfield
For all your building needs look no further! We are well established and professional at A1 Carpentry.
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Latest review:
Carpentry- 26 Nov 2017
Although it was a small job, Aiden fitted us in very quickly indeed and arrived precisely when he said he would. He performed the job quickly and cleanly and was extremely good to deal with and his costs were very reasonable. I will definitely go straight to him for any other carpentry/joinery work in the future.
Concept Infrastructure Limited
Rating: 5 out of 5
Loft Conversion Company in Longfield
We are a family run business with over 30 years experience in all aspects of the Building Industry and we are all fully qualified tradesemen. We are a flexible and versatile Company that will always spend that extra time in looking after our customers needs. In our experience by completing Projects on time, in budget and to the customer’s requirements, we continue to receive repeated business from our customers. “Basically, From Concept to Completion we've got it covered”
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Latest review:
Extensions- 6 Aug 2020
I’ve lost count of how many times we’ve said how lucky we were that we chose Bryan and his team to build our kitchen extension. The team went above and beyond to ensure as little disruption as possible, as we remained living at home whilst the work took place. During this difficult time, Bryan did everything possible to source the materials required to finish our build before our baby arrived and some how he managed it! His team were really friendly and the family miss having them around. They always tidied up after themselves before leaving too. What we thought was going to be a stressful time was in-fact the opposite. Bryan managed the whole process, kept us updated throughout and made sure the build remained on budget. The level of finish is of the highest standard, better than we could have imagined and I can’t recommend Concept enough. We will undoubtedly be using them again for work in the future. Thanks again to Bryan and his Team.
Pavdeja brother construction ltd
Rating: 5 out of 5
Loft Conversion Company in Longfield
We are a team of experienced, enthusiastic and reliable workers with project managers who work with you from start to finish. Our extensive team holds many years of experience in the construction, development and refurbishment field and aim to provide the best results for your property at competitive prices! We offer the following services: Full refurbishment Interior and exterior Bathroom fitting Kitchens Plastering Painting and decorating Extensions Loft conversion Plumbing
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Latest review:
Plastering- 3 Jun 2025
Edar and his team were excellent from start to finish. Very professional and I’d definitely hire them again and recommend their service to others. Thanks Edar and the team.
North Elevation ltd
Rating: 5 out of 5
Loft Conversion Company in Longfield
North Elevation ltd is a company that aim to provide a modern and creative approach to all aspects of design, construction and refurbishment building services. From small renovation work both internally and external, through to extensions and larger scale construction projects, we have a small team of specialist tradesmen that cover all areas of the building trade, offering a clean and reliable service at competitive prices.
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Latest review:
Conversions - General- 14 Aug 2020
Lee did a great job on the brick slips to the front and side of our house. Very clean tidy and always arrived on time. He was that great we got him back to do a feature wall with the left over bricks inside as well. Thanks Lee
E&K Carpentry Ltd
Rating: 5 out of 5
Loft Conversion Company in Longfield
All of joinery works, loft conversion, refurbishment. House extension. Kitchen's.
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Latest review:
Loft Conversion- 26 Apr 2023
We've recently completed our loft conversion/dormer with E&K Carpentry. The work has been to a very high standard, kept to the schedule promised and completed on budget. My wife and I have been so impressed with Eivinas, he's kept us up to date on each stage of the build, sending photos daily on our group Whatsapp. We've benefitted from some really great suggestions which have improved the living space. Compared to previous work we've had done, this has been free of any complication. Eivinas has excellent project management skills and has always been one step ahead of the build. The builders have been courteous throughout the build, keeping the site clean and always ensuring they impact us as little as possible I would strongly recommend E&K Carpentry for any building work
Eric construction 4u ltd
No reviews yet
Loft Conversion Company in Longfield
Hello, I'm Eric from Eric Construction 4 U Ltd. We specialize in providing top-notch construction services tailored to meet our clients' needs. With a commitment to quality and safety, we deliver projects on time and within budget. Our experienced team is dedicated to ensuring customer satisfaction through meticulous planning and execution
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Love Build Solutions Ltd
Rating: 5 out of 5
Loft Conversion Company in Longfield
In-house Electricans, undertaking full scope of projects. House extensions, loft conversions Carpentry Groundwork Electrical installation, alterations, repairs
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Latest review:
Conversions - General- 11 Jul 2019
Excellent work. Finishing is neat. Good communication through out the process. I knew what had been accomplished and what was to be done and when. Very respectful. Lovely team. Thank you guys 👏👏👌👌😀😀
Bradley builds
No reviews yet
Loft Conversion Company in Longfield
Hello, I am a carpenter with over 7 years experience
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Top rated Loft Conversion Companies

Our Loft Conversion Companies in Longfield, are rated 5 out of 5 based on 4 reviews from customers like you.

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What services are offered by loft conversion companies in Longfield?

Converting a loft often entails many jobs - some of which you likely haven’t even considered! Fortunately, a professional loft conversion company in Longfield will be able to handle multiple services, ensuring your transformed loft is fit for purpose.

Some of the services loft conversion companies can provide include:

Full loft conversions: Complete design and build projects when structural alterations are needed
Dormer loft conversions: Add extra headroom and floor space with a dormer extension
Velux or rooflight conversions: Ideal for lofts with good existing height; minimal structural change required
Hip-to-gable conversions: Extend the sloped roof to create more usable space
Mansard conversions: A major structural change offering maximum space.
Loft storage conversions: Add flooring, lighting, and insulation for clean, usable storage
Skylight or roof window fitting: Install natural light solutions like Velux windows
Staircase installation: Design and build bespoke stair access to your new loft
Insulation, heating, and ventilation upgrades: Ensure comfort and compliance with energy standards
Design and planning services: Architectural drawings, planning permission, and building regulation approval

Post your job to MyBuilder and you'll be matched with loft conversion companies in Longfield who are interested and available to help. And with the reviews of past customers and the freedom to compare the quotes of similar tradespeople, all in the same place, the ball’s in your court.

Average costs of loft conversion companies in Longfield

Loft conversions tend to be charged on a project basis, rather than by the hour, as they often involve weeks or even months of work.

The cost of your loft conversion depends on a few things, including the style of loft conversion and materials you choose and the size of your property.

That being said, here are average prices for common types of conversion work:

Full loft conversions: £45,000–£70,000+
Dormer loft conversions: £55,000–£85,000+
Velux or rooflight conversions: £25,000–£45,000
Hip-to-gable conversions: £50,000–£80,000+
Mansard conversions: £70,000–£100,000+
Loft storage conversions: £10,000–£20,000
Roof window fitting or skylight installation costs: £1,000–£2,500 per window
Staircase installation costs: £2,000–£5,000
Insulation, heating, and ventilation upgrades: £2,000–£6,000
Design and planning services: £1,500–£4,000

Take a look at our guide to loft conversion costs to get a more detailed breakdown of the different options available when using a Longfield loft conversion company.

Find a loft conversion company in Longfield with MyBuilder

When you’re planning major work like a loft conversion, you’ll want to find the right tradesperson for the job. The great news is, MyBuilder has already done all the time-consuming work for you.

All you need to do is post your job on MyBuilder, completely for free, and we’ll share it with loft conversion companies near you in and around Longfield.

Step 1: Post your job on MyBuilder

Provide a detailed description of your loft conversion project, including the type of conversion you want, any structural changes, preferred materials, and your ideal timeline. Once posted, local loft conversion companies in Longfield can view your job and register their interest.

Step 2: Review and compare Longfield loft conversion companies

Browse the profiles of interested loft conversion companies. On MyBuilder, you can view photos of previous projects alongside customer reviews, compare quotes, and see the types of conversions they specialise in.

Step 3: Contact and discuss your project

Once you’ve reviewed local Longfield loft conversion companies, you can reach out to those that interest you to ask questions, clarify details, and request more specific quotes. At this stage, be sure to discuss vital aspects like planning permission, design options, and estimated timelines to ensure the company meets your requirements.

Step 4: Hire the right Longfield loft conversion company

Once you’re satisfied with their experience, quotes, and approach, you can confirm your hire and start planning your loft conversion.

You can also take a look at our loft conversion specialist hiring guide to help inform your choice. All tradespeople undergo checks at registration - such as verifying ID documents, company details, and certifications for regulated jobs and doing skill assessments - allowing you to hire with confidence.

Questions to ask local loft conversion companies in Longfield

Choosing the right loft conversion company for your job requires finding someone who understands your home and your goals.

Find out which company can share your vision by asking the following questions:

What experience do you have with loft conversions in Longfield?

A local loft conversion company in Longfield will know the types of properties and building styles common in your area, as well as the planning and building regulations that apply. Ask about similar projects they’ve completed locally.

Are you insured, and do you offer a warranty for your work?

Insurance protects your home during the loft conversion process, while a warranty shows the company’s confidence in the quality and durability of their work.

How do you handle planning permission and building regulations?

Established loft conversion companies in Longfield should understand local planning rules and building regulations. Ask how they’ll manage permissions, inspections, and compliance to avoid delays or legal issues.

What is included in your quote?

Ensure the quote covers all essential aspects of the loft conversion: structural work, windows or skylights, staircases, insulation, labour, and any additional fees. Understanding this upfront prevents unexpected costs later.

Do you manage the project from start to finish?

Some Longfield loft conversion companies offer full project management, coordinating architects, builders, and tradespeople. Others may only handle part of the conversion. Clarifying this early on helps you understand what support to expect.

FAQ: Common questions about loft conversions in Longfield

How long does a loft conversion take?

Typically, a loft conversion can take between 6 and 12 weeks, depending on complexity, planning permissions, and any structural work required. Be sure to discuss the timeline with any potential loft conversion companies in Longfield before agreeing to start the work.

Do I need planning permission for a loft conversion in Longfield?

Many loft conversions fall under permitted development, but some require planning permission, especially if you’re adding a dormer, extending the roof, or living in a listed building. A professional Longfield loft conversion company can advise and handle permissions for you.

Will a loft conversion affect my home insurance?

Yes, you’ll need to update your home insurance to cover the conversion. Inform your provider about structural changes, additional rooms, and any changes to utilities or heating systems.

Can I stay in my home during the loft conversion?

Many loft conversions allow you to remain in your home, though noise and dust are inevitable. Some Longfield loft conversion companies offer strategies to minimise disruption, but in complex projects, temporary relocation may be advisable.