Loft conversion companies in Slough

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4.3 (6 reviews)

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Some of our top rated loft conversion companies in Slough

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HWB construction
Rating: 5 out of 5
Loft Conversion Company in Slough
Our executive team's come from diverse backgrounds such as design, engineering and management. Dedicated and focused, our vision has always been to be a dynamic and innovative organisation. The joint experience of our executive team is well over 20 years and provides us and our partners with a significant level of expertise which is applied to each project. HWB’s unique approach means we can be flexible and bespoke in all we do when delivering excellence in the construction industry.
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Latest review:
Extensions- 28 Oct 2018
We appointed HWB to carry out a full refurbishment on our house, this involved re-gutting the interior and building an extension and loft conversion plus some landscaping in the garden. We spoke to many builders but finally appointed HWB based on their previous projects and professionalism. Appointing builders for any work is always difficult however we are delighted that we went with HWB. Throughout the project they have demonstrated high levels of professionalism, were very organised and worked to very high standards. They were collaborative throughout the whole project and kept us informed at every stage. As the project developed there were some changes made and HWB were flexible and open to new instructions made by us, as well as giving us valuable advice. Farag, Ayoub and the HWB team were always available to answer any questions and provided us with constant feedback on progress as well as identify new solutions to aid the development. They have a great team of workers who work to a high standard and are supervised throughout the project. We made the right decision going with HWB Construction and have no hesitation in recommending them.
new vision construction(uk) ltd
Rating: 5 out of 5
Loft Conversion Company in Slough
New Vision Construction (UK) Ltd is committed to provide the highest quality professional construction services. This commitment can only be maintained through the efforts of its people. We provide quality construction services to our clients. The pride we have in our work enables our clients to enjoy the construction process with confidence.The craftsmanship quality we produce is visible in all our finished projects regardless of the projects size.
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Latest review:
Bathroom Fitting- 17 Jul 2020
Very professional & skilled builder. Aswell as a full bathroom refurbishment he took extra time on the small details to really make it a special end result. Me & my family are very pleased with Ranjits work. A very helpful and knowledgable man. Thanks Ranjit for a great bathroom for me & my family to enjoy.
Affixx ltd
No reviews yet
Loft Conversion Company in Slough
We recently joined on my builder. Com but in Construction Industry working for 25 years . Currently working on new build house in High Wycombe. Got great deals on materials from my supplier so can do the project on very competitive price
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Diamond Pro Ltd
Rating: 5 out of 5
Loft Conversion Company in Slough
With over 20 years of experience, we are committed to deliver exceptional projects that stand out in quality and design in the agreed time frame of the project.
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Latest review:
Had a thorough builders clean, left sparking and everything in place. Highly recommend
Greenfield Building Solutions Limited
Rating: 5 out of 5
Loft Conversion Company in Slough
Greenfield Building Solutions is a versatile building contractor offering a comprehensive range of services across residential construction and renovation. From full refurbishments and loft conversions to bespoke house extensions, they handle every aspect of the building process with precision and care. Known for their commitment to quality craftsmanship and client satisfaction, Greenfield Building Solutions works closely with homeowners to transform spaces—whether it’s modernising interiors, expanding living areas, or reimagining unused lofts into functional rooms. Their team brings expertise, reliability, and a tailored approach to each project, making them a trusted choice for turning property dreams into reality.
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Latest review:
Extensions- 6 May 2026
Mark & Max built a custom summer house/garden office for us to our exact specification and within budget. . The work included clearing & preparing the area, erecting and insulating the space, cladding the exterior walls and sealing the roof, installing uPVC doors, plus electrical and data connectivity. . It was all done without fuss or hassle, and at a high standard. Mark & Max were a pleasure to communicate and work with, would 100% hire them again. . Further references & a viewing of their finished work available by appointment
Ivaro Design and Build
Rating: 5 out of 5
Loft Conversion Company in Slough
Ivaro is a dynamic, innovative and trusted Contractor founded in the UK with years of experience. Our expertise, confidence and background enable us to deliver your vision exactly the way you pictured it in mind. Here at Ivaro many factors take into account for a project to be a success. We take pride in building a solid foundation with our client before taking on any project.
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Latest review:
Loft Conversion- 9 Feb 2020
We hired Ivaro to refurb our existing loft - including knocking down a bathroom and taking out the ceiling to extend the space. Rajiv was excellent from the start, very professional, communicative and accommodating. His staff were clearly very experienced and they completed the job quickly without disappearing for a few days. Although they charged more than some of the others who quoted, they were worth every penny. We even asked them to take on a few additional tasks, which again they completed quickly and to a very high standard. We would definitely hire them again and thoroughly recommend them. Thanks guys!
Richmond & Kingston Roofing
Rating: 5 out of 5
Loft Conversion Company in Slough
Roofing repairs, roof renewal, all pitched and flat roofs, fascia & soffits, guttering, leadwork and pointing. We Install all roof skylight windows, roof timber supports for pitched and flat roofs. We also carry out all loft room conversion from small storage to full rooms.
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Latest review:
Loft Conversion- 10 Sep 2015
Excellent service from start to finish. Ron came out quickly to provide a competitive quote and he was very accommodating in fitting the work around our schedules. The work was done exactly on time and for the exact amount he had quoted. He even got rid of a wasps nest for us! All in all, the job was completed on time, on budget, to a very high standard and Ron was a pleasure to deal with throughout. Very much recommended.
JS Construction & Property Maintenance Ltd
Rating: 5 out of 5
Loft Conversion Company in Slough
We have over 20 years of experience in the building, construction and property maintenance industry. Whatever your building needs maybe, we can provide support starting from initial consultation, drafting your plan, finalising budgets, designing, building and aftercare support.It’s all about headache-free work .References are available on request .we would always invite you to visit a property we have or are working on so you can view our workmanship. We have excellent reviews on Check a Trade .
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Latest review:
Extensions- 13 Apr 2023
Jas and his team were fantastic and completed the initial build in a wonderful timeframe. Highly recommend Jas.
DESIGN LAYOUT & BUILD LIMITED
Rating: 5 out of 5
Loft Conversion Company in Slough
Design Layout and Build Ltd wants to offer its customers quality work for fair prices. For any project we provide a minimum of 12 months warranty. For this we always use quality materials and skilled craftsmen. We are polite, friendly and have great experience in our trades. Our team is eager to complete your projects!
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Latest review:
Carpentry- 12 Sep 2015
We were extremely pleased with Daniel and his colleague's work. Daniel gave me a fully costed quote promptly, answered emails quickly and was knowledgeable about what needed to be done. They were punctual, polite and very hardworking. The work was done to a high standard and I would not hesitate in recommending them to others.
Guarded Properties
Rating: 4.7 out of 5
Loft Conversion Company in Slough
All works covered by £1m Public Liability All Building Works New Builds Extensions Refurbishments Outbuildings Roofing Bricklaying Electrics Carpentry GRP Roofing Asbestos Roofs Flooring Fascias Guttering Plastering Tiling Painting Decorating Ground Works Patios & Paving Fencing Carpeting Liaising with Building Control & Planning Your one stop construction shop!! High quality works Competitively priced Will beat any formal quotation on like for like basis!
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Latest review:
Restoration & Refurbishment- 19 Mar 2022
Danny was polite, efficient and trustworthy. Completely honest and upfront about costs and supplies. I am hiring him again for more things! One of the rare people who is not out to rip you off or do a quick half-hearted job.
Louisduckettbuilding LTD
Rating: 5 out of 5
Loft Conversion Company in Slough
I run a construction company, with over ten years of experience covering all aspects of construction and landscaping. we cover anything from as small as plasterboarding too extensions, we have a brilliant team of carpenters/builders which can carry out anything you desire from bespoke decking to fully functional garden room!
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Latest review:
Decking- 1 Sep 2020
What a great experience we had with Louis. He is honest and gets the job done efficiently with great attention to detail. He did such a good job with our terrace. We had some problems that really needed a professional solution and Louis planned and executed it brilliantly. Instead of looking for excuses for things that could be a problem Louis had a great solution for everything we came across and was positive the whole time. Would highly recommend Louis, we already have him booked in for more jobs.
Plastering and Rendering
Rating: 5 out of 5
Loft Conversion Company in Slough
plasterering and Renderering specialist, K-rend - silicone render - insulations, EWI system, Micro cement. drylining, and full refurbishment. Over 20 years experience.
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Latest review:
Plastering- 7 Aug 2023
Festim was efficient, punctual and did a very nice job rendering my wall. Highly recommended.
house convert ltd
Rating: 4.6 out of 5
Loft Conversion Company in Slough
We have the manpower and ability to undertake jobs small or large. With a combined 30 years experience, we are a company that distinguishes itself with its close approach to the clients and their needs. When it comes to extensions and loft conversions, we bring a unique craftsmanship and use only high-quality materials to give you the best results. From simple changes to major renovations, we have your needs covered.
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Latest review:
Conversions - General- 22 Feb 2020
Quoted £500 to remove small kitchen wall (<1m wide), make adjacent wall good, and move light switch. Removed wall, moved switch, and kindly moved fridge. Said he'd return to make wall good. On two occasions I arranged to WFH and he failed to show up or let me know. On multiple occasions he said he might be able to do a day but then didn't confirm. He did come by when we weren't in one day to drop wood off to cover wall gaps. One day I arranged for our dog walker to be in at 1. She waited until 3. I messaged Daniel later to ask what happened. He apparently came at 1.20 and waited for 15 mins. I believe he turned up and our dog walker didn't hear door but it's unlikely he tried to knock multiple times over 15 mins, as she was listening for him. Agreed he would finish work in new year. In Jan again failed to confirm days/times on multiple occasions. Finally agreed noon on a Sat. Failed to show up/respond to messages. Eventually got through to him - said his phone was broken. No explanation re why he didn't show up. Agreed he'd come the next Sat but no show again. No response to message or to later one asking if he planned to finish the job. Received a missed call but nothing further. I've left it a month as hoped he would get in contact. It's clear he has run off with £500, leaving giant holes in wall. I work long hours and weekends are precious. I have no patience for someone who has no respect for my free time, or for fact it's not possible to WFH all the time.
Jsb project ltd
No reviews yet
Loft Conversion Company in Slough
Hello, This is JSB Project ltd. We are based in West London. We do Loft extensions, Garages, All kind of Extensions, Renovations, Kitchen bedorrms ans so more. We have projects around London. Free qoute. Please contact us for any inquiries. Thanks. Kind regards
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Masson Developments Ltd
No reviews yet
Loft Conversion Company in Slough
"Building your ideas to reality" We undertake all turn key operations from obtaining planning permission to completing your project. We specialise in Design & Build, Extensions and Loft Conversion, Residential & Commercial Renovations.
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QC Projects Ltd
No reviews yet
Loft Conversion Company in Slough
At QC Projects , we specialise in high-quality residential and commercial construction across London and the surrounding areas. With over 10 years of industry experience, we pride ourselves on delivering projects professionally, safely, and to the highest standard from start to finish. Our services include extensions, loft conversions, full refurbishments, structural alterations, bespoke joinery, kitchens, bathrooms, roofing, fit-outs, decorating, and complete project management. Whether it’s a modern home renovation, a high-end finish, or a complex structural project, we bring the same attention to detail and commitment to quality on every job. We understand that choosing the right builder is a major decision. That’s why communication, transparency, cleanliness, and reliability are at the centre of how we operate. We work closely with clients, architects, designers, and building control to ensure projects run smoothly and are completed on time and within budget. Our team is fully committed to customer satisfaction and building long-term relationships through trust, workmanship, and professionalism. No shortcuts, no hidden surprises — just quality construction delivered properly. "Visit our website for more of our work"
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4.3

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Slough, are rated 4.3 out of 5 based on 6 reviews from customers like you.

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What services are offered by loft conversion companies in Slough?

Converting a loft often entails many jobs - some of which you likely haven’t even considered! Fortunately, a professional loft conversion company in Slough 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 Slough 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 Slough

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 Slough loft conversion company.

Find a loft conversion company in Slough 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 Slough.

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 Slough can view your job and register their interest.

Step 2: Review and compare Slough 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 Slough 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 Slough 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 Slough

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 Slough?

A local loft conversion company in Slough 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 Slough 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 Slough 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 Slough

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 Slough before agreeing to start the work.

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

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 Slough 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 Slough loft conversion companies offer strategies to minimise disruption, but in complex projects, temporary relocation may be advisable.