Loft conversion companies in Lambeth

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4.6 (10 reviews)

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Some of our top rated loft conversion companies in Lambeth

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KBL Construction Service Ltd
Rating: 4.7 out of 5
Loft Conversion Company in Lambeth
we have 10+ years of experience and provide high quality of workmanship in every aspect of building services from refurbishments to loft conversion and extension.we are professional team of skilled builders, tillers, bricklayer, carpenter, painter and provide services for plumbing and electric work.
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Latest review:
Conversions - General- 5 May 2025
Zak and his cousin began working on our project on the 10th of March and delivered everything on time. From start to finish, they were consistent, meticulous, and completely committed to bringing my vision to life. They worked collaboratively with me throughout the process, always open to ideas and focused on achieving the best outcome. Together, they handled everything — brickwork, building, tiling, rendering, plumbing, and electrical — with a high level of skill and professionalism. The quality of their work speaks for itself, and I’ve already recommended them to others. We are truly grateful for all the hard work they put in and couldn’t be more pleased with the final result.
john d limited
Rating: 5 out of 5
Loft Conversion Company in Lambeth
Thank you for taking time to look at our profile. We are a company with over 20 years experience in domestic and commercial installations. We are able to help from simple maintenance, fault finding and testing to complex new installations. Customer satisfaction is taken seriously as well as punctuality, neatens and honesty in doing business with our clients.
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Latest review:
Electrical- 14 Jun 2020
Greg, explored all possible solutions whilst keeping the changes to the ascetics as minimal as possible. He talked me through his plans and we booked him in. We are very happy with the work and would definitely call Greg again should I need more electrical work doing.
Leo81
Rating: 5 out of 5
Loft Conversion Company in Lambeth
I am good at what I do and I'll do my best to get your house to look the way you want it to!
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Latest review:
Restoration & Refurbishment- 19 Apr 2025
Positively, certain aspects of the finishing, particularly tiling, were carried out to a good standard. However, the overall experience was mixed due to significant issues. There were notable challenges during the project involving basic logistics and site management, leading to considerable inconvenience that seemed avoidable. Furthermore, the quality of workmanship was inconsistent; while some parts were good, other areas involving fittings and fixtures showed a lack of attention to detail in the finish, requiring later adjustments. Communication during the process could also be difficult, particularly regarding problem-solving and planning for materials. While we appreciated the parts done well, the project was let down by these inconsistencies and process issues, leading to some ongoing snagging and disappointment.
MetroServe
Rating: 5 out of 5
Loft Conversion Company in Lambeth
An established building company we specialise in building extensions, renovations and redecorating. We typically perform Loft, Side or Rear Extensions, install kitchens and bathrooms, remodel as required and redecorate to a high standard. We are well known and highly regarded in North London and can provide numerous references. Run by an engineer we are considered highly professional. We encourage new customers to talk to our existing customers to hear first hand how we operate.
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Latest review:
Restoration & Refurbishment- 17 Nov 2016
David and his team were really helpful and thorough from start to finish. Would definitely recommend.
Swami Builders Ltd
Rating: 5 out of 5
Loft Conversion Company in Lambeth
General Builders - Extension - Loft conversion - Painting - Bathroom - Kitchen - Flooring - Roof work - Double glazing - Gutters and Fascias - Garden paving - Plumbing and Central Heating - Electric
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Latest review:
Fitted new bathroom Fitted new kitchen Plumber and tiling
Alfa style LTD
Rating: 5 out of 5
Loft Conversion Company in Lambeth
Specialists In Loft Construction,house extension and renovation . We can convert your loft to maximise your living space,by converting it to create a new bedroom,bathroom,office or playroom. Alfa style ltd the primier home conversions company you can trust for reliable,honest and quality workmanship. Here at Alfa style ltd we offer high quality loft conversion in South West London and surrounding areas.
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Latest review:
We had the pleasure of working with Alfa Style Limited on our loft conversion and we can recommend them highly and without reservation. Their work is incredible, attention to detail outstanding – our build was done with care and precision. They turned up on time every day, worked incredibly hard and quickly. In addition, they were extremely clean and tidy in the workplace – they never left the worksite in disarray. This is the first time we have done such a big project – Ruslan, Slava and their team were amazing. They were brilliant at explaining what was going to happen, day by day, week by week and translated the more technical information! No question or query was too much. The service after the build had finished has also been great, calls to check everything is OK and any queries we have, they are only a phone call away. We have had so many compliments from family and friends who have seen the finished build … it has made a huge difference to our house, we could not be happier.
DEMA ROOFING AND BUILDING LTD
Rating: 5 out of 5
Loft Conversion Company in Lambeth
DEMA Roofing & Building Ltd is a London based specialist roofing&Construction company. We have a honest, reliable and highly skilled team of roofers&builders which enables us to offer you one of the most professional and cost effective services. We provide business backed guarantees and insurance backed guarantees on all our work.
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Latest review:
Loft Conversion- 15 May 2025
We had the pleasure of having Arben and his brother work on our loft, and I can't recommend them highly enough. The job was incredibly challenging, but they tackled it with skill, determination, and a great attitude. From start to finish, they were professional, efficient, and incredibly friendly. The quality of their work was outstanding - they paid great attention to detail and clearly take pride in what they do. It was a real pleasure having such trustworthy and skilled tradesmen in our home. Thank you, Arben, for the fantastic job!
BLG Development LTD
Rating: 5 out of 5
Loft Conversion Company in Lambeth
flat roof. PRG ROOF. painting. rendering. ceiling. tiling. plumbing. flooring. windows. bathrooms.,Exstenshens,loft
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Latest review:
Loft Conversion- 28 Mar 2024
Beqa and his team were efficient, organised and had good communication. It was a pleasure to work with them and we look forward to working with them on more projects in the future.
Top Building Ltd.
Rating: 5 out of 5
Loft Conversion Company in Lambeth
Top Building was set up in 2009 to combine the skills of various trades specialists who deliver bespoke projects to customers looking for high quality home improvements. We specialise in kitchen/bathroom & home renovations. We have the equipment & experience necessary for delivering your project.
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Latest review:
Restoration & Refurbishment- 31 Aug 2015
We have had quite a bit of work on our property in the last few years and the final project was to be our bathroom with the focus around a beautiful copper bath which has been sitting in the spare room waiting to be installed for nearly a year. We needed a company that could deliver a very high standard of work at a competitive price. Top building were not only very fair and competitive but wonderfully detailed in their approach both in quoting and their workmanship which is second to none. Vladimir and team understood the project from day one – made a few trips before hand which built the relationship and made myself and my husband very comfortable with our decision to instruct Top Building. What I enjoyed most is that Vladimir made great suggestions and offered money saving advice. Nothing was too much trouble and I really felt the team got behind the project. The knowledge and expertise is of an exceptional level. We had a few odd jobs that needed to be done which the team (Evo and Dimitri) welcomed and efficiently completed. I very much appreciate the patience and flexibility shown by the team and Vladimir’s brilliant way of keeping us informed every step of the way. Bathroom was totally refurbished including new Walls, plastering, electrics, tiling and new boiler. It really has been a pleasure working with the team – I will most certainly be recommending them.
WILTON BUILDING SERVICES ENGINEERING
Rating: 5 out of 5
Loft Conversion Company in Lambeth
We serve all construction infrastructure; building, electrics, plumbing, carpentry, and more. Our services span from initial planning, through start-up and operations. We have helped customers to complete their projects, and improving their life. Characterized by the quality of our work and our persistent drive to deliver the most successful outcomes, we align our capabilities to our customers’ objectives to create a lasting positive impact.
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Latest review:
We had an excellent experience with Wilton. They made the process straight forward and quite painless from start to finish. Everything proceeded efficiently and we are thrilled with the final results. Two beautiful new bathrooms, finished on time. A great experience from start to finish.
South London Rooms Ltd
Rating: 4.5 out of 5
Loft Conversion Company in Lambeth
We run a team of home Improvement professionals. We carry out all types of home improvement services. We specialise in Loft Conversion and Extentions. We are based in South London area. We aim to provide the best quality work for our customers.
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Latest review:
Carpentry- 28 Jun 2022
I do everting in carpentry do first fix and secund fix . Thanks for conct me.
Tactica Engineering Solutions
Rating: 5 out of 5
Loft Conversion Company in Lambeth
We are a reliable, experienced, and customer-focused construction company committed to delivering high-quality workmanship across every project we undertake. Our team takes pride in providing a professional, efficient, and friendly service, ensuring all work is completed to a high standard and in line with our clients’ expectations. With a strong emphasis on attention to detail, clear communication, and reliability, we undertake a wide range of construction, repair, and maintenance works. From smaller domestic projects to larger-scale works, we approach every job with the same level of care, precision, and commitment to quality. Customer satisfaction is at the heart of what we do. We work closely with our clients from initial enquiry through to completion, offering honest advice, transparent pricing, and dependable workmanship throughout the process. You can find us online via our website, Facebook, and Instagram, where we share examples of our completed projects and customer feedback. We are fully insured, holding comprehensive public liability and professional indemnity insurance for your peace of mind.
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Latest review:
Restoration & Refurbishment- 19 Sep 2026
Happy with work completed, recommend this company
LLOCKBUILDING
Rating: 4.9 out of 5
Loft Conversion Company in Lambeth
"PUTTING THE TRUST AND RELIABILITY BACK INTO BUILDING" At Lock Building London, we specialise in helping you grow your vision by creating the dream home you've always imagined. We understand that your home is a reflection of your aspirations and lifestyle. Our team of skilled craftsmen will turn your ideas into reality, expanding your vision one brick at a time. From innovative designs to quality craftsmanship, we ensure that your home improvement project aligns perfectly with your vision and lifestyle. With our expertise, your dream home will not only meet but exceed your expectations, allowing your vision to flourish and your dreams to come to life
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Latest review:
Restoration & Refurbishment- 28 Jul 2026
Luke delivered exceptional work, completing all tasks on time and to a high standard. His team excelled in painting, decorating, and lighting, and they flawlessly installed new floorboards and skirtings in our flat. Luke was resourceful and adaptable, consistently finding solutions that aligned with our timeline and budget. Highly recommended!
Knowhow decorating services ltd
Rating: 5 out of 5
Loft Conversion Company in Lambeth
This is a family run company and our main objective has been to provide the highest quality on the market. I have over 20 years experience in private properties and commercial properties. I take on full property renovations so this is not the only trade I cover, however this is the trade that I first started in 25 years ago
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Latest review:
Samouil and his team at KnowHow Decorating completed a major project restoring our house. Work scope included sorting the tired and broken windows , guttering , fascia panels. Replacing rotten window ledges was done with superbly crafted new hard wood. No task was too difficult as the house was looking shabby. Full painting inside and outside was really well done. We feel like we have a "new" house and Samouil and team are a pleasure to deal with. They go beyond to satisfy you . I do not hesitate to recommend them strongly and will use again anytime .
Cepele Construction
Rating: 5 out of 5
Loft Conversion Company in Lambeth
Introducing Cepele Construction Experience and Past Jobs: Cepele Construction has earned a reputation for exceeding expectations and delivering high-quality results. We have successfully completed numerous projects, such as the ones for James Smith and Teresa McTavish, ensuring that each client's unique vision is realized with excellence and professionalism. Where We Can Work: We operate primarily in London and the surrounding areas, offering our services to clients who need reliable and top-quality construction work. Special Skills: Our expertise includes loft conversions, customized construction solutions, and exceptional project management, ensuring every detail meets our high standards. Why Hire Us: At Cepele Construction, we are committed to providing top-quality services tailored to each client's needs. Our dedication to excellence and client satisfaction sets us apart as the best choice for your construction projects. For more information, visit our website at Cepele Construction
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P&T Property renovation LTD
Rating: 5 out of 5
Loft Conversion Company in Lambeth
LND Development ltd was established by a Polish builder. As a business we pride ourselves to provide a very experienced, hard working, friendly and loyal workforce. We provide a professional and experienced service at very competitive rates.
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Latest review:
Pawel and the team did a fantastic job. The bathroom looks superb and the whole team took time to finish the job to a very high standard. There was a narrow timeframe in which to do the work and this was met (despite more effort than first thought with respect to strengthening the floor). Pawel was easy to deal with and contacted me after the job to ensure everything ok. Highly recommended.

4.6

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Lambeth, are rated 4.6 out of 5 based on 10 reviews from customers like you.

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What services are offered by loft conversion companies in Lambeth?

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

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 Lambeth loft conversion company.

Find a loft conversion company in Lambeth 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 Lambeth.

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 Lambeth can view your job and register their interest.

Step 2: Review and compare Lambeth 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 Lambeth 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 Lambeth 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 Lambeth

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 Lambeth?

A local loft conversion company in Lambeth 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 Lambeth 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 Lambeth 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 Lambeth

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 Lambeth before agreeing to start the work.

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

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