Loft Conversion Companies in Putney Heath

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 4.6 (11 reviews)

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Some of our top rated loft conversion companies in Putney Heath

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Mentor
Rating: 4.9 out of 5
Loft Conversion Company in Putney Heath
Mentor Builders is a London-based, family-operated construction and refurbishment company, established with a commitment to delivering high-quality craftsmanship, transparent service, and consistent client satisfaction. Operating as a sole trader, the business is led by a qualified electrician with over a decade of hands-on industry experience and a passion for building spaces that combine functionality, safety, and aesthetic value. Founded on the values of honesty, reliability, and attention to detail, Mentor Builders has steadily grown through word-of-mouth referrals and repeat business. Our portfolio spans residential, commercial, and public-sector projects across Greater London and surrounding areas, including high-stakes environments like NHS facilities where precision, discretion, and regulatory compliance are paramount. Mentor Builders is proud to be a family-run business with a tightly integrated team of three core professionals, each with dedicated expertise in one of the following disciplines: • Electrical Installations & Safety Compliance • Plumbing Systems (residential and commercial) • General Refurbishment, Fit-outs, and Interior Renovations Our multi-trade structure enables us to offer a holistic service model to clients, removing the need for subcontractor management and ensuring full control over quality, timelines, and client communication throughout the project.
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Latest review:
Conversions - General- 20 Feb 2026
Well organized, good attention to details and taking pride in achieving good quality. Working to architects details and happy to do mockups to validate them is just part of the work. Mentor and his teams are highly recommended
Orland
Rating: 5 out of 5
Loft Conversion Company in Putney Heath
I have been working in building industry for 16 years . I started as electrician after I finished the college. Until 2010 I was doing electrical jobs full and partly rewiring houses . In 2010 I started painting and tiling flooring, kitchen and bathroom fitting ,loft conversion and rear extensions, getting together a small team when needed. I have trade insurance and qualifications. Kind regards Orland Bogdani
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Latest review:
Bathroom Fitting- 13 Jul 2023
We honestly can’t recommend Orland highly enough. He came in mid job after we got abandoned by some shady builders, and was just fantastic. Built us a wonderful bathroom in under a week - was polite, professional, arrived early and all his work was to a very high standard. Would definitely ask him to help with future projects!
House Refurb
Rating: 4.9 out of 5
Loft Conversion Company in Putney Heath
We have built our livelihoods on remodelling people’s homes, increasing their size and value. From the simple to the lavish, no matter how big or small, we’ve experienced it all and we can help you every step of the way offering a comprehensive service and take care of all aspects of your project, from initial plans through to full completion. Our skilled workforce of reliable professionals is on duty to offer you quality building work, competitive prices and exceptional customer service.
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Latest review:
Bathroom Fitting- 14 Jan 2015
Highly recommended. Work was done on budget and on time. Narcis and Levi always happy to help and listen to any queries and adapt as the job went on. Left the place clean at the end of each every day. We had a small leak under the sink after the job was finished which was sorted out promptly. The finish (painting/tiles etc) was of decent quality. Bathroom was completed 6 months ago and no problems since.
Rose Projects
Rating: 5 out of 5
Loft Conversion Company in Putney Heath
At Rose Projects we build to your lifestyle, A family run business with a fresh approach covering all aspects of Construction. Craftsmanship is our main focus always maintaining high standards. We work along side Architects, Engineers and Designers We have an organised team of qualified tradesmen which take pride in there work with projects completed on time and budget. References available upon request, Come and see previous projects for ideas.
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Latest review:
Extensions- 26 Sep 2022
Excellent work with the garden office/gym. Finished really nicely and exactly what we were looking for. Took quite a while but well worth the wait. We requested a labour quote and worked with Alf on a receipts basis for material and other costs. This worked out perfectly for us both. Alf's initial estimate of the materials cost was virtually spot on, which is very impressive given the inflation rate for building materials. Thanks again for all your hard work!
Knowhow decorating services ltd
Rating: 5 out of 5
Loft Conversion Company in Putney Heath
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 .
Vision Construct Group ltd
Rating: 5 out of 5
Loft Conversion Company in Putney Heath
Experienced builders, Vision Construct Limited specialise in all domestic developments Extensions, Lofts, Basements, New Build, Renovations. We have a number of years experience of working in the industry, we have done many different projects, New Build, Extensions, Loft Conversions,Basements. We take on projects of all sizes, from small renovation works to project managing your new extension.
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Latest review:
Ivan and his team completed a full loft conversion at our terraced house, and we couldn’t recommend them more highly. They did a fantastic job from start to finish and were a pleasure to work with. Communication and project management throughout the project was excellent, and their commitment really showed. Nothing was ever too much trouble to ask. The project was completed within the estimated timeframe, which was especially appreciated as it finished just before Christmas. The team was very considerate while working in our home, and we stayed in the house for the entire duration of the project with minimal disruption. In addition to the loft conversion, they also replaced all our doors with fire doors and installed new flooring throughout the house, all to a very high standard. We’re absolutely delighted with the results and would highly recommend Ivan and his team to anyone considering similar work.
Wimbledon Developers Limited
Rating: 5 out of 5
Loft Conversion Company in Putney Heath
Ivan Demian, experienced builder, established Wimbledon Developers Limited specialise in all domestic developments Extensions, Lofts, Basements, New Build, Renovations. We have a number of years experience of working in the industry, we have done a range of different projects, New Build, Extensions, Loft Conversions,Basements. We can take on projects of all sizes, from small renovation works to project managing your new extension.
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Latest review:
Ivan and his team were excellent. I would recommend them in a heartbeat. They were polite and a joy to work with. They completed the works on time, within budget and to a very good standard. Thank you Ivan!
LUCID BUILDING LTD
Rating: 4.5 out of 5
Loft Conversion Company in Putney Heath
We at Alder Tree Construction LTD are a specialists high-end London based construction company. We love what we do and pride ourselves on our work methods and exacting standards. Every project we take on receives special attention and we are heavily invested in the delivery process. A dedicated Team is assigned to each and every project so a personal service is always guaranteed. Our success is based on our honest approach.
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Latest review:
Handyman- 14 May 2018
I had an issue with one of my lights. Pawel came on time and was very helpful, polite and efficient. He did the job quicker than expected and also followed up the following day. I would highly recommend.
30 Day Extensions Ltd
Rating: 4.8 out of 5
Loft Conversion Company in Putney Heath
COMPLETED 130 projects since lockdown•WIMBLEDON & SURBITON SHOPS now open. FREE- architectural and design services if you use us. •Fantastic reputation, reviews on google and webpage. • Speed, we build shell in 30 days. •priced by a QS and we add 15%. Simple! • •Highly skilled reputable teams. • Guarantees that mean something. • Peter snelson, the CEO has over 40 years experience in the industry internationally and nationally. A member of The Federation of Master Builders.
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Latest review:
Loft Conversion- 6 Mar 2018
Loft conversion. We were delighted with Peter and his team. We were impressed with the hard work shown by all of the builders on site. We were particularly impressed by the speed(2 months) and quality of the work at a competitive price. There was surprisingly limited disruption to family life. Most access was from outside with toilet facilities also located outside. As with all big builds issues will occur. These issues were dealt with switly in a professional manner. We would highly recommend Peter and his team
XTEND LONDON LTD
Rating: 5 out of 5
Loft Conversion Company in Putney Heath
Hello, we are XTEND London LTD. We have over a 100 years combined experience as a team in the building industry specialising in extensions, roof conversions, plastering, house refurbishments and decoration, We have got a hardworking and skilful team of qualified trades men including electricians and gas safe plumbers ready to meet your building needs and ideas! We look forward to working with you to build your dream home. Many thanks, XTEND LONDON LTD.
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Latest review:
Loft Conversion- 13 Oct 2020
Lucas and his mate were very profetional. They have completed the job to the high standard and quality. Both were very decent and job finished neat and tidy. Reasonable price and no hidden cost. Highly recommended
LocalWood LTD
Rating: 4.9 out of 5
Loft Conversion Company in Putney Heath
About Us At LocalWood LTD, we specialise in high-quality renovations, carpentry, decking, roofing, and full home refurbishments. Based in South London, our experienced team focuses on delivering tailor-made solutions that meet our clients’ expectations with precision and care. We pride ourselves on: Clear communication Reliable timelines Honest pricing Clean, high-standard workmanship Whether you're looking to renovate your home, add an extension, or simply fix what’s broken — we’ve got you covered. Every project we complete is treated like it’s our own home.
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Latest review:
Handyman- 13 Aug 2025
Yurii was very helpful at the start of the process where we had a lot of back and forth. He installed shelves in my airing cupboard and did a great job.
Jwolfconstruction ltd
Rating: 5 out of 5
Loft Conversion Company in Putney Heath
My name is George and I'm running J Wolf Construction building company. I can provide a lot references from happy customers in sw London.
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Latest review:
Extensions- 26 Nov 2019
Great on delivery, good on project management....rate them very high on integrity and transparency
Dalibpro services limited
Rating: 5 out of 5
Loft Conversion Company in Putney Heath
Since 2004, DPS Ltd. based in south west London delivers hight standard new build project, house extension, loft conversation to people in Southwest London and Surrey. Our aim has always been to became a company that people associate with quality, professionalism and customer satisfaction.
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Latest review:
Ground floor back extension, reconfiguration and full redecoration. We chose Dali, firstly through recommendations by neighbours, seeing his work first hand and feeling confident during the consultation phases of his ability to deliver. Prior to the job commencing a schedule of works and costing were clearly agreed. We were impressed with Dali's level of communication and his availability to meet with us personally. He would always return a message promptly and that continued throughout the job. Dali expertly guided us through the project and also arranged architect and structural drawings, site surveys, council applications and 3rd party wall advice. We decided to live-in during the build which is never ideal but Dali cordoned off spaces for us to live whilst allowing him to get on with the job. He set up temporary kitchen and laundry facility some 3 or 4 times for us! Now for the business end. Dali supervised the project but also allocated a Manager, Michal to be our point person and he was on site every day without fail. Both would respond to any question promptly and courteously. I learnt to keep the questions short and be more patient as the job progressed as everything was always on their agenda to be done. Teams of builders would arrive punctually by 8am and work would always start promptly. Everyone on the team had clear instructions and their industry was on show from start to finish. I could not fault them at all for their reliability and professionalism. They were all courteous, polite and respectful and would also make a point to clear up after themselves at the end of each day. On occasions I did request a deviation it was fully discussed so we could make informed decisions but nothing, no matter how small, was made to seem trivial as they were intent on delivering an unquestionable product. The job progressed sometimes at lightning pace with crews of builders coordinated daily and we hardly had a single day where someone was not in attendance. Dali would continue with a regular update by email or phone so we were always aware of progress. When problems did occur, Dali and Michal would distress those situations, find solutions quickly and sometimes you are oblivious to there even being a problem. On the few occasions they made mistakes they were not argued about but swiftly rectified ... finding someone who was honest and proud of their workmanship has been a true find. The work progressed to schedule and the end result is something we are not only thrilled about but cannot fault at all. It is a level of workmanship we have been truly delighted with. Another thing I am confident of is that if something does happen in the future Dali will respond to my call whether it be now or in a year's time. There is so much positive to be said and I would highly recommend DPS Ltd for their professionalism, reliability and workmanship so much so I have already asked them to continue on the 1st floor.
Ideco limited
Rating: 5 out of 5
Loft Conversion Company in Putney Heath
Ideco is a refurbishment company based in SW London. With over 10 years experience, we do all aspects of home renovation, from structural work to the very final finished product. From full home refurbishment, loft conversions, kitchen extensions, new kitchens, bathrooms, garden houses etc.
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Latest review:
Restoration & Refurbishment- 4 Feb 2025
Great team, reliable and very trustworthy. We were super happy with the works and actually did several other bits with them. Thank you Ivan !
Zebra Property Limited
Rating: 5 out of 5
Loft Conversion Company in Putney Heath
Looking to increase space within your property, restructure the layout, a new bathroom/kitchen or just re-decorate. We do it all. We have put in basements, loft conversions, side returns and even a swimming pool. We provide a 'do it all' service at the highest of qualities for all our clients.
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Latest review:
Restoration & Refurbishment- 20 Jul 2015
We hired Zebra Property for a complete strip out and refurbishment of a GF flat. The JOB: The job included initial removal of existing bathroom, kitchen and flooring. The works itself were for a side return wrap around kitchen extension, basement refit, installation of new kitchen and bathroom, new windows (including velux) and bifold doors, tiling and complete decoration throughout. FEEDBACK: Zebra were a great company to work with on this job. Communication levels were clear. There were inevitable delays to the project but there was always a focus to get back on track and deliver as quickly as possible. The resulting finish is a high standard throughout the property, with any minor snags completed quickly. Thank you!
Gesti
Rating: 5 out of 5
Loft Conversion Company in Putney Heath
Hi, At GESTI RENOVATIONS we specialise in all types of building works, from small repairs to full renovations, loft conversions & extensions. Get in touch for a free no obligation quote.
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Latest review:
Plastering- 14 Nov 2024
Very happy with the work Gesti did for us. We just brought our first home and the ceiling honestly wasn’t looking the best. Lots of cracks and slightly warping. Gesti was able to come in and secure all the cracks and plaster the entire ceiling for us. He did an amazing job. Will use him again I highly recommend. !!

4.6

Top rated Loft Conversion Companies

Our Loft Conversion Companies in Putney Heath, are rated 4.6 out of 5 based on 11 reviews from customers like you.

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What services are offered by loft conversion companies in Putney Heath?

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

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 Putney Heath loft conversion company.

Find a loft conversion company in Putney Heath 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 Putney Heath.

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 Putney Heath can view your job and register their interest.

Step 2: Review and compare Putney Heath 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 Putney Heath 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 Putney Heath 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 Putney Heath

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 Putney Heath?

A local loft conversion company in Putney Heath 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 Putney Heath 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 Putney Heath 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 Putney Heath

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 Putney Heath before agreeing to start the work.

Do I need planning permission for a loft conversion in Putney Heath?

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