Loft Conversion Companies in Holders Hill

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4.2 (9 reviews)

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Some of our top rated loft conversion companies in Holders Hill

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Mansarda Ltd
Rating: 4.9 out of 5
Loft Conversion Company in Holders Hill
We are a trusted and experienced building company based in London, specialising in loft conversions, house extensions, home renovations, bespoke furniture, and wood flooring. With many years of experience in the construction industry, we have successfully completed a wide range of projects for homeowners across London, earning a reputation for quality workmanship and excellent customer service. Our skilled team is committed to delivering every project to the highest standards, using quality materials and paying close attention to every detail. We understand that building work can be disruptive, which is why we always treat your home with care and respect, keeping the workspace clean, organised, and safe throughout the project. Whether you’re looking to create more living space with a loft conversion, extend your home, renovate your property, install beautiful hardwood flooring, or have custom-made furniture designed to suit your style, we provide a complete service from start to finish.
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Latest review:
Loft Conversion- 22 Sep 2021
Mansarda completed the work to a very pleasing standard and were reliable and well organised bringing in various specialists as and when required. Mykola was very flexible on making agreed variations to original plans to improve the final build. He is very knowledgeable and skilled in many aspects of the work. I would recommend him to anyone looking for a loft extension.
Pine Construction Ltd.
Rating: 5 out of 5
Loft Conversion Company in Holders Hill
As a civil engineer and principal building contractor we consult, design, construct and project manage any dwelling and commercial projects from minor repairs to complete new-build as well as any type of restoration/renovation and basement construction projects.
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Latest review:
Extensions- 19 Oct 2017
The best team in London to work with they are highly skilled professionals and very easy to work with looking forward to work with them again
AVOTERG Ltd
Rating: 5 out of 5
Loft Conversion Company in Holders Hill
Our aim is to help clients achieve their objective on time and budget and to the highest standard. We value the good communication with the clients, and try to have as much information as possible with regards to how their project must look when completed.
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Latest review:
The job was a complete refurbishment of a one bed flat, including rewiring and re-plumbing. We would recommend Al and his team without any hesitation. From the very beginning and all the way to completion, we felt very lucky and fortunate to hire them. We found them to be very hardworking, conscientious and professional. The job was a difficult and complex one, but the team still completed within time and within budget. Al's advice made the whole process easier and we found him to be very trustworthy and honest. The end result was better than we originally hoped for and was done to a high standard.
MT Building Services
Rating: 4.9 out of 5
Loft Conversion Company in Holders Hill
MT Building Services here, we undertake all Building construction work from beginning to end. We are specialised in loft conversions, extension, full house refurbishments. We undertake small jobs aswell as flooring, kitchens,doors etc etc. Contact us for quotations. Thanks MT BUILDING SERVICES
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Latest review:
Restoration & Refurbishment- 2 Aug 2025
Asen did an incredible job! In just under 4 weeks he managed to assemble a team and complete renovation on a 2 bed flat including: * Full rewiring, new lights, updating and adding sockets * Fixing rotten and uneven subfloor and levelling the whole house * Wood flooring throughout - done excellently with no thresholds * New boiler and all new radiators * Built a pocket door at the porch to stop our kitties from escaping * Tiled the fireplace * Skirting, decorating and repainting the entire flat * Dealt with gutting the place and arranging pickup of rubish The place looks and feels amazing and everything works! Asen was good on the price, kept to the (very tight) timelines, great communication throughout and overall very professional and friendly! Pics shows after and during the work, ignore the moving boxes.
LONDON PROJECT MANAGEMENT LTD
Rating: 5 out of 5
Loft Conversion Company in Holders Hill
Modern Attics is a specialist loft conversion company and we cover all north London areas. We always put our clients first.
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Latest review:
Paul and the team from Modern Attics converted our loft in Spring 2011. The job was completed on time and on budget. Every effort was made to limit the intrusion onto our lives during the conversion, particularly as we had a young son living at home. The building team were very tidy during the process and Paul's management through regular site visits, telephone calls and emails ensured a relatively stress free project. Any issues that arised were dealt with quickly and to our satisfaction. I would be very happy to recommend Paul and his team to anyone considering a loft conversion or extension.
Mitica ltd
Rating: 5 out of 5
Loft Conversion Company in Holders Hill
Loft conversion and extensions are the main works we undertake. We take pride in what we do, What makes us stand out from other trades is that we have a short time frame for completion and no unfinished jobs are left behind, dedicated team from start to finish. And what is the most important is that our customers are very happy during and at the end of the project
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Latest review:
Loft Conversion- 2 Nov 2023
We used Mitica for a loft conversion in Sept/Oct 2023 and we have nothing but praise for him and his team! If I could give them 6 stars out of 5 I would! The job was quoted 6-8 weeks and they were done by 5.5 weeks. Mitica and his team covers almost everything in-house incl but not limited to construction, plumbing, tiling, decorating, woodworks which reduced the risks of delays significantly. We received the quotation within timely manner from site visit, the quote was detailed and transparent and competitive. Communication throughout the project was great, the workers were punctual, respectful to neighbours, kept noise and dust to a minimum. Miticia also managed to tweak drawings and the position of the stairs which gave us more useable floor space than initially expected. The attention to detail is visible everywhere in the final product and we would wholeheartedly recommend them and will be using for any future work we may undertake.
Compact Building Ltd
Rating: 4.8 out of 5
Loft Conversion Company in Holders Hill
Compact Building LTD Renovations | Refurbishments | Plumbing – Across London From full home makeovers to small upgrades, we deliver expert results with 0% interest payment options. Make It Compact. Make It Perfect.
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Latest review:
Bathroom Fitting- 21 May 2026
Petru fitted a new shower tray. It was a complicated job due to the location of the piping. Petru was very meticulous and ensured he completed the job correctly and to a high standard.
Ceca Developments LTD
Rating: 5 out of 5
Loft Conversion Company in Holders Hill
Hael Construction Ltd, a proud member of the Federation of master builders, is a trusted construction company based in North London, delivering high-quality building services across the region. We specialise in new builds, extensions, loft conversions, renovations, groundworks, electrical installations, and plumbing. With a skilled team of qualified tradespeople and experienced project managers, we provide a complete service from design to completion. Our focus is on quality workmanship, transparent communication, and delivering projects on time and within budget.
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Latest review:
Loft Conversion- 9 Nov 2022
Honestly the best builder I have ever used in my life. Sebastian and his team have been quick honest and professional. If you are thinking about using Ceca please stop thinking hire these guys now. I could not be more happy with the service and quality of work I have received. I will never use any construction company!
Bischell Construction Limited
Rating: 4.9 out of 5
Loft Conversion Company in Holders Hill
Design & Build projects that squeeze more out of every pound spent. We’ll deliver an outcome for you that looks a lot more expensive than it really is. It will be tailored to your lifestyle, designed for your senses and fine-tuned to minimise lifetime costs. If you have an eye on value, or looking for maximum ROI, we’ll deliver more for less. It’s about smart design and construction, so the result gives you more performance, better quality of life and a stronger return from your budget.
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Latest review:
Loft Conversion- 2 Sep 2021
Bischell have been brilliant to work with. They did the architectural and structural drawings for my bungalow extension and loft conversion. They are a very efficient, patient and knowledgeable team. I’m absolutely delighted with their designs and suggestions. I cannot wait to see my house transform into a dream home.
Florin
Rating: 5 out of 5
Loft Conversion Company in Holders Hill
I’ve got over 10 years experience in roofing industry,I’m a professional person,I’m not doing tipe of work that I never done it before,I don’t leave any jobs unfinished.I have done several roofing jobs for different companies base in London.
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Latest review:
Roofing (Pitched)- 29 Nov 2022
Florin and his team did a very good job fitting a skylight and rubber roof. Communication was very good and the standard of workmanship and overall finish were excellent. I would strongly recommend him
Corneliu Stan
Rating: 5 out of 5
Loft Conversion Company in Holders Hill
ACE Construct is a reliable construction company specialising in brickwork and general building services. We take pride in delivering high-quality workmanship, attention to detail, and projects completed on time and within budget. Our services include brickwork, general construction, renovations, formwork, groundworks, carpentry, drainage, flooring, tiling, painting, demolition, welding, and ongoing property maintenance. Whether it’s a small repair or a full renovation, we approach every job with the same level of care and professionalism. We are punctual, tidy, and committed to customer satisfaction. Site visits and honest advice provided before quoting, with clear communication from start to finish.
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PrimeUKContractorsLtd
Rating: 5 out of 5
Loft Conversion Company in Holders Hill
Prime UK Contractors is a London-based construction company providing high quality work for a reasonable price. Our projects are always finished on time. Our priority is the satisfaction of our clients. Our team consists of skilled, experienced builders who will help you execute your dream project.
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Latest review:
I recently used PrimeUK Contractors Limited for conversion works at our studios in Camden, and I couldn’t be happier with the results. The project timeline was set at six weeks, and the team delivered right on schedule. Pavlo and his team had a clear understanding of the scope and what needed to be achieved, going above and beyond to make the project a success. The quality and attention to detail in their work were outstanding, and my entire team was thrilled with the final result. Their pricing was competitive and fair, which was another bonus. When we have more work in the pipeline, Pavlo and PrimeUK will definitely be my first call. Highly recommend!
Rapid Response Contractors
Rating: 5 out of 5
Loft Conversion Company in Holders Hill
We are a family run business. No job is too big or too small for us. I have been in the building trade from a early age, and qualified in gas and electrical engineering. My wife handles all admin and material orders for the company whilst im hands on with my team of workers.
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Latest review:
Loft Conversion- 27 Aug 2017
Sheraz and his team completed a loft conversion in our house in Harrow, inclusive of new staircase, en-suite bathroom, doors fitting throughout, painting, tiling, plumbing and electrics. We are delighted with our beautiful light and airy new loft bedroom! The quality of the workmanship is excellent, the team were professional, easy to work with throughout the project and completed under 10 weeks. They kept us informed and consulted throughout the build, discussed concerns, provided recommendations and practical solutions to the problems encountered along the way. They really wanted to do the best job they could do for us, were patient explaining the details and readily available to advise and answer any questions. We got to see a project Sheraz was working on as part of our research, spoke to the previous client and felt confident going into the project. At the outset we were provided with the breakdown of the build stages, costs and timescales. They were considerate to our neighbours and accommodating of fellow tradesmen. They also did a number of small additional jobs, which was a huge bonus. Overall we found Sheraz and his team very friendly, reliable and trustworthy. We would use Sheraz and Rapid Response again, and can recommend them without hesitation. We are also happy to provide additional feedback and/or pictures upon request.
Restora Developments LTD
Rating: 5 out of 5
Loft Conversion Company in Holders Hill
Hi! Here at Restora Developments we pride ourselves in having a diverse range of skills. Our bread and butter is new build homes and large developments, however we have formed a sub division aimed at end clients and home owners for smaller taks. With all in house; - carpenters - roofers - plumbers - electricians - brick layers - landscapers Etc. We take on all work from simple bathroom refurbishments to building your dream property from the ground up!
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Latest review:
Groundwork & Foundations- 18 Feb 2022
they did for me a good job and very high standard and price wise
Benny Neagu
Rating: 5 out of 5
Loft Conversion Company in Holders Hill
I am a builder with more than 25 years experience mostly gained on conversion, refurbishment and property maintenance for various building contractors and private clients. I have worked for my self since 2006 doing jobs ranging from loft conversions, extensions to small maintenance items.
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Latest review:
Joinery & Cabinet Making- 16 Dec 2016
Benny did a great job boxing in pipes and electrical wiring in both the kitchen and utility room. In particular he framed the consumer unit in the kitchen with a single piece of laminated mdf whilst concealing all the pipes and wires in the vicinity. Some of the angles were quite tricky, but still the mdf was cut to 100% accuracy. In the utility room where he used unlaminated mdf, the finish of his work was done to a very high standard with all the end grain of the mbf filled with two pack filler, and sandpapered ready for painting. The pipes were somewhat irregular, but the final look, with new architraves, minimises the impact of the boxing in. I will engage Benny next time I require carpentry to be done to a high standard. Alan Roberts
Garey Limited
Rating: 5 out of 5
Loft Conversion Company in Holders Hill
General building
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Latest review:
Very reliable and high quality of work.

4.2

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Holders Hill, are rated 4.2 out of 5 based on 9 reviews from customers like you.

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What services are offered by loft conversion companies in Holders Hill?

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

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 Holders Hill loft conversion company.

Find a loft conversion company in Holders Hill 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 Holders Hill.

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 Holders Hill can view your job and register their interest.

Step 2: Review and compare Holders Hill 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 Holders Hill 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 Holders Hill 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 Holders Hill

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 Holders Hill?

A local loft conversion company in Holders Hill 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 Holders Hill 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 Holders Hill 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 Holders Hill

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 Holders Hill before agreeing to start the work.

Do I need planning permission for a loft conversion in Holders Hill?

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