Loft Conversion Companies in Feltham

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

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Some of our top rated loft conversion companies in Feltham

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SRK Constructions London Ltd
Rating: 5 out of 5
Loft Conversion Company in Feltham
We offer a plethora of construction services and are known for excellent k-rendering, electrical fitting, plumbing, and carpet service. We have been in the industry for more than 14 years and our work varying from small to large projects speaks about our experience in the field. We believe in creating with heart and building with the mind. We are trustworthy contractors and always strive to meet the quoted budget. Clients’ satisfaction is the topmost priority of the SRK constructions.
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Latest review:
Bathroom Fitting- 12 Apr 2022
Sandeep was the first builder who I ever met who finished job before time . His team has worked very hard and did job as per our expectations . Before this I used 3 different builders and no one finished job on time . I will recommend him for any building related job .
Loftxtnd Limited
Rating: 5 out of 5
Loft Conversion Company in Feltham
Hello! We are offering full range off work:full refurbishment,loft conversion,house extensions,driveway!
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Latest review:
The project lasted from July 2023 to Feb 2024 and comprised of: 1. Single story rear extension with new kitchen and underfloor heating 2. 75m2 patio 3. Internal reconfiguration including removal / installation of walls, new flooring, plumbing (including new boiler), new door frames, doors and skirting, redecoration, carpentry for cupboards 4. Ventilation of existing roof The team are both friendly and professional with Alin always on hand to manage any questions / situations as they arise. The work is clearly costed and every two weeks a valuation takes place to ensure transparency of work undertaken both in original scope and any extras. The quality of the build was excellent, something the building inspector commented on. Alin was recommended to me based on past work, and I in turn would highly recommend him.
Greenfield Building Solutions Limited
Rating: 5 out of 5
Loft Conversion Company in Feltham
Greenfield Building Solutions is a versatile building contractor offering a comprehensive range of services across residential construction and renovation. From full refurbishments and loft conversions to bespoke house extensions, they handle every aspect of the building process with precision and care. Known for their commitment to quality craftsmanship and client satisfaction, Greenfield Building Solutions works closely with homeowners to transform spaces—whether it’s modernising interiors, expanding living areas, or reimagining unused lofts into functional rooms. Their team brings expertise, reliability, and a tailored approach to each project, making them a trusted choice for turning property dreams into reality.
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Latest review:
Extensions- 6 May 2026
Mark & Max built a custom summer house/garden office for us to our exact specification and within budget. . The work included clearing & preparing the area, erecting and insulating the space, cladding the exterior walls and sealing the roof, installing uPVC doors, plus electrical and data connectivity. . It was all done without fuss or hassle, and at a high standard. Mark & Max were a pleasure to communicate and work with, would 100% hire them again. . Further references & a viewing of their finished work available by appointment
Foundations up
Rating: 5 out of 5
Loft Conversion Company in Feltham
I have been involved in the construction, civil engineering for 20 plus years. I have a great knowledge of every aspect from the ground up. I have a portfolio of past projects on request. I relish on problem solving projects, because there is always a solution there is no job that can’t be done, with my clients budget coming first so both parties are completely happy and satisfied with the time and resources available.
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Latest review:
Groundwork & Foundations- 6 Feb 2026
Quick communication, completed work as agreed at a competitive price. Recommended.
Trb decorating and building services ltd
Rating: 4.5 out of 5
Loft Conversion Company in Feltham
My name is Terry I have been in the building business for over 40 years. We specialise is extensions, loft conversions, complete refurbishments although we are happy to quote for most building projects . We work closely with architects, structural engineers and building control. References can be provided from previous client if required. We have a friendly family orientated team that are experienced with dealing with our clients . Look forward to helping you with your requirements. We are a member of Construction Line. We will be happy to negotiate and compete with other prices that you have been quoted
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Latest review:
Carpentry- 14 Feb 2026
Paul was approachable, reliable and trustworthy. Arrived early each day and communicated well (by text) about his progress. Paul was careful to ask questions and to make sure we got the finished porch we wanted . Worked well with the other carpenters completing the floor who were working in the house at the same time. I would use this firm again.
F D SERVICES FULHAM LTD
Rating: 5 out of 5
Loft Conversion Company in Feltham
The profile of F D services has been enriched by hard-working, highly qualified professionals who always do their very best to achieve excellence in their work. As a result, F D services is a well-established and trusted gas company with extensive experience. Customers are always happy to request our services again and again, as well as to recommend the company.
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Latest review:
Gas Work- 7 May 2024
Florin has done a great job to replace my gas system boiler. He worked hard to finish the job in one day, in fact stayed late evening to make sure the job was completed. He registered the boiler, provided the building reg and Lanlord certificate. I will recommend him based on my experience and will use him again in future.
Knotts carpentry
Rating: 5 out of 5
Loft Conversion Company in Feltham
Knotts carpentry (Ashford Surrey)With 25 years experience in carpentry and building in the Surrey, Middlesex and London areas,We are a friendly and reliable team which offers all aspects of general repair and maintenance. Work including Loft conversions Bespoke summer houses Extensions Fitted kitchens All aspects of carpentry and joinery.
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Latest review:
I have recently had the very good fortune of Tony from Knotts Carpentry removing my rather sad and tired kitchen and installing a wonderful new modern unbelievable kitchen. There were a few pitfalls along the way but Tony and his electrician Chris coped very professionally and expediently with all the problems solving them as they occurred. Their work is of the highest calibre and I have no complaints at all. All of the rubbish was all cleared away from the site and I was able to return to normal quickly. I would have no qualms in recommending them to anyone for their good quality work and the finished article which in my case was superb.
Redmark Contractors Limited
Rating: 5 out of 5
Loft Conversion Company in Feltham
Redmark Contractors Limited have over 10 years experience, and with many years experience in the building trade. We are a professional team are reliable builders operating in London and the wider area. We take great pride in all work which we undertake, taking great care to make sure that our client’s needs are met in a meticulous and professional manner.
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Latest review:
Extensions- 27 May 2025
They helped build me two houses and were always putting their best foot forwards. Bhupinder and his team are lovely, and are now like family to me. They have a bright future ahead for themselves and for the clients they look after.
singhbuilder
Rating: 5 out of 5
Loft Conversion Company in Feltham
Hi my name is Dil Singh, I'm a runing own business with 10years + experience, Multi skilled in all aspects of as a certified electrician, roofing and building.Able to deliver a high standard of work. All new work can be done guaranteed,References avalible on request. I done plenty jobs like electric work: change the consumer unit, wiring, design and inspection and testing, fault finding, loft conversion, extensions. I never let down my customers. Job done guaranteed from a to z by me.
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Latest review:
Loft Conversion- 26 Dec 2019
Working with Dil was a pleasure! From the the outset he was very helpful with calculating overall costs (over and above his costs) for the build to ensure everything had been catered for and was very thorough in checking that my ideas/plans were appropriate for the long term. It was through the initial discussion that some minor adjustments were made and for the better I believe, simple things like where the new Megaflow System should be placed. He was very quick and efficient in identifying where there may be issues upfront and has the right contacts to get things sorted to minimise problems further into the build. I had to get a new mains water pipe installed which to me was a a major job but he got it sorted very quickly through his contacts at a very reasonable cost. His team are very polite and they do a as good a job as possible to minimise impact on your daily living if like us you are living in the property during the process. Essentially a team of 3/4 guys who are capable of doing most things however Dil does call in specialist trade as and when needed to ensure the job gets done in a timely manner, for my build he called in roofers and certified plumbers for the boiler. Only negative is that you have to watch the silicone sealant finishing which is not the tidiest but a minor in the grand scheme of things and if you don’t like something you simply have to say and he will redo within reason. Overall a very happy customer
BG Lofts and Extensions LTD
Rating: 5 out of 5
Loft Conversion Company in Feltham
I am an expert in construction & refurbishment for residential & commercial properties inc new builds. I undertake all kinds of work inc structural work, refurbishment, steel work, drainage, plumbing, electrics, loft conversions, kitchen installation, carpentry inc bespoke furniture & help with planning & design. By trade I am a carpenter, with 10+ years of experience where I have completed 100's of jobs. I am well priced with a very high standard of finish. References can be supplied on request
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Latest review:
Extensions- 14 Nov 2019
Bogdan himself is extremely knowledgable and his years of experience in industry is clear to see, which makes choosing him great value for money. Before and during the project he offered solutions that we hadn't considered and the would in fact save us money and be of benefit to us in the future. His team is punctual, reliable, diligent, speedy and clean! They take pride in their work which has led to a highly satisfactory work in the final build. Bogdan also has great connections to third parties (e.g. to flooring and curtains/blinds providers) which is very valuable, especially when trying to coordinate different aspects and timings of a full house redecoration. His quotes and payment structures are fair, clear and concise which is also very helpful. His communication is excellent too. All in all, Bogdan's great work took away a huge amount of stress during these projects. I would highly recommend Bogdan and his team for any prospective works someone is considering.
All purpose improvements
Rating: 5 out of 5
Loft Conversion Company in Feltham
All purpose improvements are a team of contractors who specialise in high quality home improvement solutions. We believe in building a strong relationship with our clients which allows you to relax, with the confidence in us to deliver on time with the highest quality of work. All jobs we undertake will receive 100% commitment.
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Latest review:
Garden Maintenance- 18 Mar 2019
Just had some work in my garden completed by Ian flowers and hes team they done a excellent job transforming my garden into a garden I will enjoy for a long time to come and also tidied up after themselves would defenly recommend them to anyone for any work in the garden or any home improvements
Ironbark Interiors
Rating: 5 out of 5
Loft Conversion Company in Feltham
I have spent the last 15 years working on developing my carpentry skills whilst pushing my design creativity. Creating bespoke kitchens, bedroom, bathroom and all other residential and small commercial Interior work. From concept to design I enjoy and love working with clients to find what is it they really want and what really amazes each of us as individuals. From this point the build to install process is handles with care and passion.
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Latest review:
Tiling- 25 Feb 2026
Job was quoted at a very good price, turned up on time and work was completed to a very high standard! Very happy with the tiling job. Nice tidy work with no mess left behind, would highly recommend Ironbark for your Tiling job.
Richmond & Kingston Roofing
Rating: 5 out of 5
Loft Conversion Company in Feltham
Roofing repairs, roof renewal, all pitched and flat roofs, fascia & soffits, guttering, leadwork and pointing. We Install all roof skylight windows, roof timber supports for pitched and flat roofs. We also carry out all loft room conversion from small storage to full rooms.
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Latest review:
Loft Conversion- 10 Sep 2015
Excellent service from start to finish. Ron came out quickly to provide a competitive quote and he was very accommodating in fitting the work around our schedules. The work was done exactly on time and for the exact amount he had quoted. He even got rid of a wasps nest for us! All in all, the job was completed on time, on budget, to a very high standard and Ron was a pleasure to deal with throughout. Very much recommended.
THANDI & KARTAR DEVELOPMENTS LTD
Rating: 5 out of 5
Loft Conversion Company in Feltham
A structured and well mannered approach is applied to all our construction works we project manage. Our work ranges from extensions to full property refurbs, however we also provide additional services like helping you buy the right property or even a buy to let!
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Latest review:
Extensions- 8 May 2024
T&K immediately understood what we wanted to achieve and made beneficial changes to the architects plans. T&K were patient when we changed our minds. The quality of work including subcontractors was excellent. Snagging was fixed with alacrity. The finished project looks stunning.
Plastering and Rendering
Rating: 5 out of 5
Loft Conversion Company in Feltham
plasterering and Renderering specialist, K-rend - silicone render - insulations, EWI system, Micro cement. drylining, and full refurbishment. Over 20 years experience.
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Latest review:
Plastering- 7 Aug 2023
Festim was efficient, punctual and did a very nice job rendering my wall. Highly recommended.
Lnb building solutions ltd
Rating: 5 out of 5
Loft Conversion Company in Feltham
We are specialise in all types of new builds from large extensions to loft conversions or building a new house with complete planning services with structure drawings and designing interior as well.We are members of federation of Masters Builders. First time buyers with limited funds to decorate and refurbish to give new and bright look with new double glazing and roofing. Every small job is treated like a big job. Thanks in advance for giving us opportunity to fulfill your future home project.
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Latest review:
Loft Conversion- 18 Mar 2023
Lokesh / LNB Building completed my loft + Dormer + en-suite bathroom . Amazingly the work started in late Dec 2022 ( scaffolding) and completed yesterday( Building cert received ). The overall experience and result was in nothing short of impressive . Lokesh and his team completed the loft and bathroom to a high spec and work consistently , mainly focused on finishing, detail, and safety aspects of the Contruction/renovation . They have always been available for consultations to go through any concerns or issues. LNB’s recommendations for fitted wardrobes, windows , Bathroom supplies etc were extremely helpful.

4.2

Top rated Loft Conversion Companies

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

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What services are offered by loft conversion companies in Feltham?

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

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 Feltham loft conversion company.

Find a loft conversion company in Feltham 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 Feltham.

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 Feltham can view your job and register their interest.

Step 2: Review and compare Feltham 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 Feltham 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 Feltham 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 Feltham

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 Feltham?

A local loft conversion company in Feltham 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 Feltham 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 Feltham 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 Feltham

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 Feltham before agreeing to start the work.

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

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