Loft Conversion Companies in Westerham

Name: Loft Conversion Company
Brand: MyBuilder
SKU: loft-conversion-company
Rating: 5 (5 reviews)

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Some of our top rated loft conversion companies in Westerham

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Bono Construction
Rating: 4.9 out of 5
Loft Conversion Company in Westerham
BONO CONSTRUCTION is a family run building and construction company based in south east. 20 years experience in business we pride ourselves in the service we offer. We have our own in house drawing office and structural engineers. BONO construction will guide you through your project from very start to finish. ********We design cafes, shops restaurant from start to finish include extractor systems electrical fire cctv and even logo printed on your plates,cups get in touch for a quote
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Latest review:
Bathroom Fitting- 25 Sep 2018
Mustafa is excellent! He did a fantastic job on our bathroom - so much so, that when we decided on a more extensive construction project, he was our first call. He is communicative, friendly, and hardworking. All his team are sweet guys and they did a great job for a great price. I cannot recommend him enough.
Roofing and Building
Rating: 4.9 out of 5
Loft Conversion Company in Westerham
I have 15years experience in Roofing & Building. Im am based in South East London and take great pride in the quality of workmanship. I like to work with the customer in order to keep the customer satisfied, working on a word of mouth basis for our business.
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Latest review:
Roofing (Flat)- 10 Feb 2020
Ben is a fantastic tradesman and I will definitely use his company again for any roofing work.
BKFS LTD
Rating: 5 out of 5
Loft Conversion Company in Westerham
Work undertaking includes; Joinery, Kitchen and bathroom installation. Electrical NIC EIC approved contractor Gas safe Plastering, Painting, Tiling, Specialised in Bespoke wardrobes. Granite, Marble and Quartz Worktops. Wet room
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Latest review:
Tiling- 3 Jan 2025
Job completed in a very friendly and professional manner. Highly recommended. Once again, thank you Raghed!
M.R.Building
Rating: 4.1 out of 5
Loft Conversion Company in Westerham
We are team of professional builders from Croydon, Surrey. We always work hard and unless client are pleased. Our knowledge and planning giving you real savings without compromise on quality. Projects are always done to top quality and on time..
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Latest review:
Extensions- 15 Nov 2017
NEVER USE Got on well at the start - worked very hard with all his team and we were very please with progress until he went on holiday and haven't been able to contact him since beginning of August. We have been left with no end of problems including basicially re-wiring all of what we had paid for, 2 fireplaces not working, patio and drive not finished and all paid for
Sawmore Carpentry
Rating: 5 out of 5
Loft Conversion Company in Westerham
Sawmore Carpentry is a highly reputable carpentry firm based in Kent. We are fully insured and take pride in all our work.
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Latest review:
Handyman- 15 Mar 2022
Jack was professional and quick. Very reasonably priced also. Would definitely recommend.
Seymour Building Services Limited
Rating: 5 out of 5
Loft Conversion Company in Westerham
Seymour Building Services would look after your complete project. We would organise all our tradesmen so the right trades are there at the right time. This leaves you with no headaches. Just one number to call for our friendly help and advice.
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Latest review:
Kenny and team did a brilliant job replacing my old lean-to porch area for a new smart extension with windows, door and even a cat flap. They were on time, organised, efficient and took away all the old materials and rubbish. Kenny was helpful when he visited and prompt in replying to all communications and supplying quotes and invoices. I am very happy with their work and wouldn't hesitate to recommend their services.
GS&M Construction
Rating: 5 out of 5
Loft Conversion Company in Westerham
GS&M Construction is a solid family run business. we are reputable long standing building contractor. We are Reliable, Conscientious & Personable builders working in london & the south east offering a value for money service.
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Latest review:
Sean plastered my front room ceiling. He was tidy, punctual, cleaned up after himself each day, very polite, friendly and well mannered, and the job was at a decent price. I am very happy with the work - the fact that he cleaned up - I appreciated. I would highly recommend him.
R K refurbishments
No reviews yet
Loft Conversion Company in Westerham
Works carried out include electrical plumbing Carpentry. Bathrooms kitchens garden offices Garage conversions Our ethos is based on quality and customer satisfaction
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Pivotal Architectural Services
No reviews yet
Loft Conversion Company in Westerham
I have run my own practice in Architecture since 2005, I work from home, a family man with three children. I also provide structural drawings and calculations, so a one stop shop on that front. Usually saving customers well over £1,000 typically on project drawings. I supply a detailed design spec on all projects to current building regulations, and where necessary detailed 1 in 5 scale drawings for more complicated elements. I have a number of reliable contractors I use regularly, any one of which I would have work on my own home. initial consultations are free of charge, I am happy to discuss your project and look at the overall scope and scale of the project. From there I will provide a detailed fee proposal for both design, planning submission if required, and a full construction package. As my client, you are under no obligation to instruct me for the construction stage after any planning application is successful, you are free to explore other options, of course. I am based in Warlingham, Surrey, prepared to travel within reason, but not to central London.
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SIM Building Services Ltd
Rating: 5 out of 5
Loft Conversion Company in Westerham
SIM Building Services Ltd is a construction company providing services in Croydon/London and surrounding areas. Our team has over 20 years of combined experience in residential, commercial and interior/exterior construction across all trades. We’re dedicated to a high level of customer service and will take the time to make sure that you are comfortable with the services we are providing.
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Latest review:
Extensions- 18 Sep 2022
Dritan is genuine and a man who keeps to his word. Very happy with him and his team. 100% recommend to others.
GMAS Carpentry
No reviews yet
Loft Conversion Company in Westerham
Carpentry ,timber frame,doors,kitchens,
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Build With Ion
No reviews yet
Loft Conversion Company in Westerham
High standart, wery honest, finish on time!
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Roof Restorer Ltd
Rating: 5 out of 5
Loft Conversion Company in Westerham
Hi, and welcome! We’re Roof Restorer — a dedicated roofing company based in London, specialising in all aspects of roofing including new roof installations, flat roofs, roof repairs, tile replacement, leadwork, and more. With a skilled and reliable team, we pride ourselves on high-quality workmanship, transparent pricing, and exceptional customer service. Whether it’s a small repair or a full roof replacement, we treat every job with care and professionalism. We’re fully insured and offer guarantees for peace of mind. Get in touch for honest advice and a no-obligation quote — we’re here to help protect your home.
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Latest review:
Roofing (Pitched)- 18 Jun 2025
I was in need of a quick roof inspection to make sure that the works carried out by another roofer were to a good standard. Shilhaad was very prompt to get back to me and had outstanding communication from quotation through to delivery. He was fair and impartial, turning around a report on the same day. He was very friendly, approachable and knowledgeable. Thanks to Shilhaad, I can go back to our initial roofers with some evidence on work that needs to be redone. My only regret was not using Shilhaad and his team to carry out the roof works in the first instance. Thanks again!
Clarke's Design & Build Limited
Rating: 5 out of 5
Loft Conversion Company in Westerham
Flawless Finishes - look right here! Clarke's Design and Build are general contractors based in London, serving both the London and surrounding areas of the United Kingdom. Clarke's Design and Build focuses on tailor made home design, residential / commercial renovations and aim to use sustainable, environmentally friendly resources. We specialise in design, extensions, interior/exterior upgrades and aspire to turn challenges into solutions, plans into useful creative spaces.
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Latest review:
Carpentry- 22 May 2024
Great work from Leslie! On time, friendly, accommodating of all my questions and paid attention to all the details. Thank you Leslie.
Top Finish Ltd
Rating: 4.6 out of 5
Loft Conversion Company in Westerham
We are a property refurbishment specialists with a wealth of experience in house extensions,basements,loft conversions,bathrooms kitchens and much more. We have built a reputation on the basis of providing clients with a quality service that is combined with excellent value for money. .
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Latest review:
Loft Conversion- 2 Jul 2016
Top finish were ultimately hired to conduct this work. There was admittedly some job creep in this project. Alan came round and discussed our intentions and suggested a possible route forward. An architect (Red Squirrel Architects) was independently retained by us to work with the Top Finish team to deliver a Dormer conversion reorganization and significant structural works for a side return extension and installation of a new kitchen (13 steels were inserted and a sewer had to be bridge over, with permission) The job was completed to a high specification, particularly given some of the problems thrown at the team when dealing with a 150yr old property. I think it's important to understand that when undertaking jobs of this scale, and if you are planning to live in the property as we did, then you are effectively living with the team you chose. To that avail- ALL of the top finish team were always considerate and a pleasure to be around and happy to fix any concerns rapidly as required. I wish Alan and his team all the best going forward and I would recommend meeting Alan and including him in your shortlist for any job - large or small.
DSW Building Solutions
Rating: 5 out of 5
Loft Conversion Company in Westerham
City and Guild QUALIFIED Carpenters with 20 years experience. Specialising in loft conversions,extensions, structural carpentry & kitchens Family run business offering quality workmanship along with quality customer care. We pride ourselves on our close working relationships with architects, structural engineers and building control. I firmly believe that keeping a good line of communication with my clients is important to earning trust DBS checked
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Latest review:
Conversions - General- 7 Apr 2019
Dean has been truly remarkable throughout the whole process. Following the initial visit he had an excellent grasp of the project and was able to recommend the most practical approach to the works while having factored into consideration our original scope for the new garage conversion. It was very apparent from the outset Dean’s building experience and knowledge compared to other contractors (notably an excellent eye for detail). Most importantly Dean was very earnest yet competitive with his approach, his pricing was transparent and he provided a clear breakdown of the scope and project timeline which was greatly appreciated. Once agreed the job itself was undertaken in an expedient yet structured manner. Dean works very swiftly and was extremely dedicated (almost machine-like)! He was true to his word and the project was completed within the agreed timeframe, in fairness with a number of days to spare. He placed careful choice with his sub-contractors and likewise they performed in a similar manner. The end product is that we were handed a high quality downstairs bathroom / utility room with general piece of mind given the professional manner and approach to the work. Sincere thanks to Dean for his efforts, I would highly recommend him for any project, big or small!

Top rated Loft Conversion Companies

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

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What services are offered by loft conversion companies in Westerham?

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

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 Westerham loft conversion company.

Find a loft conversion company in Westerham 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 Westerham.

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 Westerham can view your job and register their interest.

Step 2: Review and compare Westerham 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 Westerham 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 Westerham 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 Westerham

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 Westerham?

A local loft conversion company in Westerham 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 Westerham 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 Westerham 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 Westerham

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 Westerham before agreeing to start the work.

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

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