Loft Conversion Companies in East Finchley

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4.3 (10 reviews)

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Some of our top rated loft conversion companies in East Finchley

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D Alexa Ltd.
Rating: 5 out of 5
Loft Conversion Company in East Finchley
I'm a self-employed builder with more than 14 years experience. I really enjoy my job as my work changes the whole view of my clients property. I always make sure my jobs are finish to a high standard as my clients hire me for a service & I believe they should always get the best
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Latest review:
Restoration & Refurbishment- 13 Aug 2019
David and his team were excellent. They are always on time and very professional. They always cleared up at the end of the day thereby leaving very little dust or dirt around the house. No query or issue was ever insurmountable; the answer was always "no problem", which was a joy to hear when having such a large project to do. Each different team i.e. electrician, plumber, arrived exactly on schedule so there were never any delays. The end result was amazing. I highly recommend David and his team.
UK Safety inspections
Rating: 4.6 out of 5
Loft Conversion Company in East Finchley
Full qualified electrician. Gas safety engineer. 18 years experience in London and England. Insurance £10 million. We do EICR, EIC , FIRE, EMERGENCY LIGHTS, PAT, LANDLORD GAS SAFE, HEAT PUMP CERTIFICATIONS.
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Latest review:
Gas Work- 13 Oct 2025
They did a great job, and they clean as they go. I'm so impressed.
North Builders LTD
Rating: 4.8 out of 5
Loft Conversion Company in East Finchley
North Builders LTD have a team of specialists which gives you quality and high standard work on Loft conversions, Extensions, Roofing, Renovation, Refurbishment. We based in London and we cover all M25. With the best quality work and proffesional prices on the market we managed to make happy a lot of costumers around London and not only. Our priority is the costumer to be satisfied, the project to finish in timeline and on budget. Contact us for free quotes.
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Latest review:
Loft Conversion- 2 Nov 2025
Full loft conversion with dorma. Blerim always asked the right questions and made really good suggestions. Very helpful and great quality. Would happily recommend him and his team.
alintrade.ltd
Rating: 4.7 out of 5
Loft Conversion Company in East Finchley
Hello..my name is Alin . Best description of myself is honesty,determination,quality ,diligently but i let you covince yourself of this. Don’t hesitate to contact
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Latest review:
Landscaping- 30 Jul 2025
Alin was professional and did a good job. He had a couple workers who were messy and we spent a lot of time cleaning up after them. But they worked hard and did a good job on our garden.
Onyx Services Limited
Rating: 5 out of 5
Loft Conversion Company in East Finchley
Onyx services Ltd which is part of the Wigwam construction Group has been in the home improvements business for many years. All engineers are Gas safe and NIEIC registered. We undertake all types of building, construction, plastering, painting as well as heating, plumbing & electrical installations. Onyx has £5 million public liability insurance. All work comes with written garuantee. All major debit/credit cards accepted.
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Latest review:
Gas Work- 26 Oct 2025
I was able to get my own boiler and just pay for the extra material and installation. Not all traders accept this. The price was very competitive. I was sceptical at the start but was reassuring on how quickly the job was completed. There was an issue with the thermostat but was sorted out the following week. The gas certificate, building compliance and boiler registration was completed promptly. Would definitely recommend, please allow Shami to quote before making a decision, you won't be disappointed.
Maxmar Construction Ltd
Rating: 4.7 out of 5
Loft Conversion Company in East Finchley
We are a company that pride ourselves on taking excellent care of the ‘whole project’, from design to completion. We can, on your behalf, manage your project, coordinating all the required trades to turn up as and when required, leaving you to get on with daily life. Your dream home could be closer than you think, allow us to turn your ideas into reality. My company has lots of experience working on many different projects, big or small! On a personal level I am a honest hardworking individual. I have a lot of experience in all aspects of building work. I am familiar with building regulations and used to dealing with building control officers from the various local authorities. I have a fully skilled team of builders who cover all types of general building maintenance including kitchen and bathroom fitters, plasterers, flooring specialists, painters and decorators. The company offers a fully insured and guaranteed comprehensive
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Latest review:
Conversions - General- 21 Jul 2013
Flooring & lighting to extension not completed appropriately and resulted in later problems.
AEE Construction Ltd
Rating: 5 out of 5
Loft Conversion Company in East Finchley
General renovations, electric, plumbing, decoration, painting, kitchen fittings, tiling, flooring, bathrooms, extensions, loft conversions and property maintenance
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Latest review:
Handyman- 27 Jul 2023
Very professional and polite man. Job done neat and professionally. Would highly recommend.
Master Builders Developments Ltd
Rating: 4.6 out of 5
Loft Conversion Company in East Finchley
Newly Joined My Builder, We are a established Building firm specialising in Extensions, Loft Conversions and Refurbishments, we undertake commercial projects along with substantial size constructions. Our team over all elements of construction.
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Latest review:
Roofing (Pitched)- 26 Sep 2024
Keep this company as first choice for ur building work.
Signature 1 Construction Ltd
Rating: 4.5 out of 5
Loft Conversion Company in East Finchley
Signature 1 Construction LTD is a family run business with over 25 years experience in the building industry. We specialise in extensions, loft conversions and full house refurbs. Every job we undertake we take great care of the clients house and are experienced project managers will look after you from start to finish.
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Latest review:
Extensions- 30 Sep 2025
Overall, I’m very pleased with the work Marin has carried out for us and I’m currently in the process of instructing him to do more work. Marin built a high spec cedar shed for us with electrics and plumbing, some brickwork and laid composite decking. Marin came across, honest and reliable, which in itself is rare. He was on site most mornings to make sure his tradesmen were on the right tracks. Like with a lot of these things there were some issues along the way and I was highly impressed by Marin’s ‘no quibble’ approach to rectify any problems. I myself have a high attention to detail and am quite indecisive (nightmare client) and Marin was happy to work with me with changes to the project without incurring extra costs.
E&E construction
Rating: 5 out of 5
Loft Conversion Company in East Finchley
With over 18 years of industry experience, our construction company specializes in high-quality house extensions and loft conversions across London and Essex. We are committed to transforming homes with expert craftsmanship, tailored design solutions, and reliable project management from start to finish. Whether you're looking to expand your living space, increase property value, or bring new life to your home, we deliver outstanding results that reflect your vision and meet the highest standards of construction excellence.
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Latest review:
Fencing- 9 Sep 2023
Ervin was polite, communicated well and worked hard to get the job done. Would hire again.
MCM Builders
Rating: 5 out of 5
Loft Conversion Company in East Finchley
I'm a painter & decorator, have considerable knowledge of general maintanance work. I have been in the business for 15 years. I work to the highest standards & towards a mirror glass finish. I'm efficient, clean, reliable. I'm a friendly guy my prices are very reasonable.
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Latest review:
Michael carried out a variety of painting and decorating jobs at my property. I found him to be very cooperative, he was good a conveying ideas. He knows all the regulations very well and was good at communicating. He's always happy to take on board my problems and resolve them. He was always on time and the quality of his work was top notch. His price was competitive, I would definitely use him again and recommend to anyone.
CM Building LTD
Rating: 5 out of 5
Loft Conversion Company in East Finchley
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.
Construction
Rating: 4.2 out of 5
Loft Conversion Company in East Finchley
Produce materials that adhere to architectural specifications. - Install floorboards, skirting boards, window frames, parquet flooring, doors, door frames, staircases, and built-in furniture. - Includes fixtures such as door handles and locks, cabinet handles, stair railings, and additional fittings in the design and execution. - Constructs temporary housing and support systems for concrete setting (shuttering). - Installs fire doors and implements fire stopping measures. - Installs metal beams. - Installs floor joists. - Works on roofing structures, roof tiles, and flat roofs. - Creates Velux openings if needed. - Completes loft conversions (first and second fix). - Performs house extensions (first and second fix, complete). - Acts as a medium bricklayer. - Constructs timber partitions, stud walls (first and second fix). - Installs plasterboard and completes dry lining. - Assembles kitchen units (completed). - Performs bathroom tiling and installs second fix accessories (tools required). - Installs gutters and rain channels. - Completes paving and decking.
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Latest review:
Carpentry- 4 Apr 2026
Dragos was punctual, polite and extremely efficient. The work was completed to a high standard with care and professionalism. I would happily recommend him.
Radlett Construction Ltd
Rating: 4.8 out of 5
Loft Conversion Company in East Finchley
Hi my name is Peter. I offer a wide variety of high quality building services for residential properties. I will work side-by-side with you every step of the way until you are 100% satisfied.
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Latest review:
Restoration & Refurbishment- 6 Sep 2024
Peter and his team were amazing. Peter is very professional and talented. He is reliable. Him and his men did amazing work for me. He is reasonable with his pricing. I trusted him and his team and they did not let me down. They completed the work in the time scale and dealt efficiently with several additional and unexpected issues that came up during the project. I will highly recommend him to anyone.
Mo
Rating: 5 out of 5
Loft Conversion Company in East Finchley
Hi, I’m Mo – a skilled and trusted builder with a team of nearly 20 experienced tradesmen. We deliver high-quality results, fast and efficiently, no matter the size of the job. We specialise in everything from small repairs to full-scale builds, including: • Full house builds from the ground up • House extensions and structural alterations • Loft conversions & dormers • Bathroom & kitchen fitting • Plumbing & roofing • Bricklaying & repointing • Carpentry & joinery • Flooring (carpets, lino, laminate, etc.) • Painting & decorating • Plastering & rendering • Tiling • Windows & doors installation • Paving & landscaping • Damp proofing and more With years of experience and a reliable, multi-skilled team, we take pride in completing work to the highest standard — on time and within budget. We’re ready to take on your project and exceed expectations. Get in touch today for a free quote or site visit.
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Latest review:
Painting & Decorating- 3 Jul 2025
Mo and his team did a good job and when we needed to fix the detail, he was happy to oblige. Will definitely be looking to hire him again
Eugen
Rating: 4.8 out of 5
Loft Conversion Company in East Finchley
My ins.ta.gram : London Starling Prodecor London Starling ProDecor – Bauwerk Approved Limewash Specialist London Starling ProDecor is a specialist decorative finishing company based in London, officially recognised by Bauwerk Colour as an approved limewash applicator in the United Kingdom. With more than 10 years of experience in premium painting and decorative finishes, we deliver authentic limewash surfaces that combine craftsmanship, texture, and timeless elegance. Our expertise includes colour consultation, sample applications, surface preparation, and the professional application of Bauwerk limewash finishes for residential and commercial interiors. We work closely with homeowners, interior designers, architects, and developers to achieve unique, natural-looking spaces with exceptional attention to detail. Serving London and surrounding areas, we are committed to delivering high-quality workmanship, personalised service, and outstanding results on every project. Best regards, Painter and Decorator Eugen
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Latest review:
Painting & Decorating- 23 Feb 2026
Polite and thorough. Limewashed kitchen/living area. However no caulking, no prepping of paintwork, left the job unfinished - although he said it was finished. Had to get another painter to go over the work that he left.

4.3

Top rated Loft Conversion Companies

Our Loft Conversion Companies in East Finchley, are rated 4.3 out of 5 based on 10 reviews from customers like you.

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What services are offered by loft conversion companies in East Finchley?

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

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 East Finchley loft conversion company.

Find a loft conversion company in East Finchley 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 East Finchley.

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 East Finchley can view your job and register their interest.

Step 2: Review and compare East Finchley 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 East Finchley 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 East Finchley 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 East Finchley

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 East Finchley?

A local loft conversion company in East Finchley 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 East Finchley 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 East Finchley 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 East Finchley

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 East Finchley before agreeing to start the work.

Do I need planning permission for a loft conversion in East Finchley?

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