Loft Conversion Companies in Stanmore

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4.1 (8 reviews)

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Some of our top rated loft conversion companies in Stanmore

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G.B
Rating: 5 out of 5
Loft Conversion Company in Stanmore
Refurbishment Extension Loft conversion
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Latest review:
Plastering- 29 May 2026
Great job. Hired to plasterboard underneath the stairs. The space was awkward and didnt think anyone could sort it but Gaz did a great job and now I can use the space as intended. Will definitely be hiring for more jobs and would recommend. :)
Corja
No reviews yet
Loft Conversion Company in Stanmore
Plumbing Loft Extension Paint decorations All buildings work
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CM Building LTD
Rating: 5 out of 5
Loft Conversion Company in Stanmore
At CM Loft Conversions, we specialise in luxury loft conversions, home extensions, and full refurbishments for both residential and commercial properties across London. Our dedicated team is renowned for transforming spaces with unparalleled craftsmanship and meticulous attention to detail. Whether it’s a high-end home, a modern office, or a commercial property, we deliver projects that elevate both form and function. By seamlessly blending design innovation with practical solutions, we ensure every project not only enhances the aesthetic appeal of a space but also maximises its value and usability. At CM Loft Conversions, we are passionate about creating bespoke spaces that reflect the unique needs of our clients. From concept to completion, we focus on the fine details and provide a smooth, stress-free experience. Whether you’re looking to transform your home, expand your business premises, or refurbish a commercial unit, our team is committed to delivering results that exceed expectations.
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Latest review:
I met Charlie and his team from CM Builders Ltd when they were completing a loft extension and ground floor extension for one of my neighbours. Quotation and budget I was given an estimate subject to drawings as I was on a strict budget that I had to keep to for the build. Charlie was able to help me keep to the budget, both at the final agreed plan and during the build. The project was complex in that whilst it was a loft extension, all of the house was rebuilt. The only thing kept was the external walls and first floor rafters. Whilst the footprint of the first floor was not being changed I wanted to bring it up to current building standards with extra insulation. All of the plumbing and electrics were also replaced including a new boiler. The overall build has come in on budget, save for agreed enhancements that I did not think of at the planning stage and or building regulations such as double ceiling fire plaster boards. There were also items such as the original stairs that I wanted to keep, but Charlie was able to increase the height space in the kitchen making the worktop much more usable for tall people for a larger part of the kitchen. These were suggested to me as potential options as part of the build. Stage payments The stage payments have all been sensible throughout the build and linked to the ongoing work schedule. I have not therefore had any concerns in this regard. Quality of work This was a very complicated build as unlike the ground floor the first and new second floor are “L” shaped. The new 2nd floor included an en-suite and 2 bedrooms. Overall the house has been increased from 2 bedrooms 1 bathroom, to four doubles and 2 bathrooms. The quality of work is excellent and Charlie project manages his team to ensure that they all deliver to a high standard- if it is not done correctlt they do it again, with Charlie spotting any issues. Timeline of build This has generally gone to plan very well. As with any build you have to be realistic as things will happen outside of anyone’s control. When issues have arisen Charlie manages them to a conclusion. Also be realistic if you are having to manage to a tight budget. I had to plan for various stage receipts of cash before I could order the kitchen and bathroom items - make sure you understand how this impacts the build and availability of the work force, recognising that CM Builders have to book kitchen fitters and plumbers. CM Builders are also very helpful in that they have sorted out issues with the brick work of my freestanding garage (nothing to do with the build) and also a neighbour’s wall that could have been dangerous to the public, should it have failed. Conclusion The whole family are very pleased with the outcome and we now have the equivalent of a brand new house that has been built to a very high standard. This has definitely been worth doing both from a valuation perspective and quality of life perspective. I would not hesitate to instruct Charlie and his team again.
Cristian
No reviews yet
Loft Conversion Company in Stanmore
lofts conversion kitchen fitting doors fittings
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The Lionvale Construction Limited
Rating: 5 out of 5
Loft Conversion Company in Stanmore
The Lionvale Construction Building Excellence with Integrity The Lionvale Construction is a distinguished construction firm renowned for delivering superior craftsmanship, innovative solutions, and unwavering commitment to excellence across every project. With a solid reputation built on trust and performance, we specialize in a wide spectrum of services including residential, commercial, and industrial developments. Our expert team combines industry-leading technology with best-in-class practices to ensure each project is completed on time, within budget, and to the highest standards. From new builds and renovations to complex infrastructure ventures, we provide bespoke solutions tailored to the unique vision and requirements of our clients. At The Lionvale Construction, safety, sustainability, and client satisfaction are at the heart of everything we do. Our collaborative approach and meticulous attention to detail have made us a preferred partner in the construction industry. Choose The Lionvale Construction — where quality, reliability, and integrity define every build.
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Latest review:
Conversions - General- 26 May 2025
The guys did a great job in tearing down a stud wall and reflooring the living room to cover the gap previously occupied by the wall. The job was finished to a very good standard, including decorating.
LPB Land Developments Ltd
No reviews yet
Loft Conversion Company in Stanmore
We have been in the construction business for more than 25 years ranging from general building works to new build developments. We have also refurbished large buildings in the London areas on behalf of clients and main contractors.
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AIA BUILDING CONTRACTORS LTD
Rating: 5 out of 5
Loft Conversion Company in Stanmore
Our Family run business is built purely on word of mouth and on our reputation with genuine authenticated reviews available on our website. we take pride in all aspects of our work from home improvements inside and out, Bathroom Refurbishment, New Roofs, Painting and Decorating, Loft Conversion, Rear Extension, Velux windows, Roof Repair, Gutters and Drain pipes unbloking
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Latest review:
Bathroom Fitting- 25 Mar 2022
Fantastic job very pleased with my bathroom under the stair. Thank you Ben. Pamela Robinson
URBAN LOFTS LTD
No reviews yet
Loft Conversion Company in Stanmore
Urban Lofts Specialists in Loft Conversion and Refurbishment. We take great pride in offering you the finest build service in London and its surrounds. We deliver excellent, convenient service to our costumers so you can be assured work will be done on time with attention to details. We will manage your project from initial plans through to full completion.
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WHALE PROPERTIES LTD
No reviews yet
Loft Conversion Company in Stanmore
We are a construction company with a very quick performance with over 9 years experience in London
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apex roofing solitions
Rating: 5 out of 5
Loft Conversion Company in Stanmore
Dedicated roofer experince in installing , repairing and maintaing various types of roofing work including roof structures and wood work proven track record of completing projects on time within budget.
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Latest review:
Roofing (Pitched)- 14 Apr 2026
Great communication, fast and efficient were done in a day.
DS windows ltd
No reviews yet
Loft Conversion Company in Stanmore
We have a 20 year experience in with handling windows and doors. We are manufacturing and supply Upvc winnows, doors, aluminium windows and doors, composite doors, patio doors, conservatory. We make upvc windows in Rehau profile
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Enc Build
No reviews yet
Loft Conversion Company in Stanmore
Hi , as sole trader extension builder and loft conversion specialist, I have been in this industry for 7 years. I operate primarily in North part of London and surrounding areas, providing quality construction services to homeowners. My skills include structural alterations, project management, and a strong attention to detail, allowing me to handle everything from following structural drawings to the final touches. I typically undertake loft conversions, extensions, renovations, and general building work, all tailored to meet the unique needs of each homeowner. If you have any questions or would like to discuss a project, feel free to reach out!
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Bogdan
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Loft Conversion Company in Stanmore
...
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BSD Design & Build LTD
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Loft Conversion Company in Stanmore
🏗️ Build with Confidence – Build with Us! 🏡 B.S.D Design & Build is a proud member of FMB. Not every builder is a Master Builder! In an unlicensed industry, choosing a Federation of Master Builders member gives you peace of mind, knowing we meet strict entry criteria and undergo continuous monitoring. ✅ Expert Craftsmanship ✅ On-Time & On-Budget ✅ Built to Last Trust the professionals. Contact B.S.D Design & Build today! 📞🔨
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Builders 4 UK Ltd
Rating: 5 out of 5
Loft Conversion Company in Stanmore
Our Team consists of contractors and self-employed professional builders with a background of more than 10 years in the residential building industry. Our knowledgeable craftsmen are ready to complete any challenging tasks of your designer in a very satisfactory manner.
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Latest review:
Building warbrobe, loft cabinets, fitting kitchen, fitting wooden flooring, bi-food doors, fencing. Great skill, precision and attention to detail.
Julian xhakaj
No reviews yet
Loft Conversion Company in Stanmore
Hi there, my name is Julian. With an experience of more than 15 years in construction and property maintenance. In the past two years we have built more than 10 lofts with very happy costumers. based in Borehamwood we do offer our services for whatever your property needs. No job is too big or too small for us, please feel free to contact us for a free and honest quotation.
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4.1

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Stanmore, are rated 4.1 out of 5 based on 8 reviews from customers like you.

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What services are offered by loft conversion companies in Stanmore?

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

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 Stanmore loft conversion company.

Find a loft conversion company in Stanmore 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 Stanmore.

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 Stanmore can view your job and register their interest.

Step 2: Review and compare Stanmore 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 Stanmore 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 Stanmore 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 Stanmore

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 Stanmore?

A local loft conversion company in Stanmore 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 Stanmore 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 Stanmore 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 Stanmore

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 Stanmore before agreeing to start the work.

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

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