Conversion Specialists in Castelnau

Name: Conversion Specialist
Brand: MyBuilder
SKU: conversions-specialist
Rating: 4.9 (46 reviews)

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Some of our top rated conversion specialists in Castelnau

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A S Builders
Rating: 5 out of 5
Conversion Specialist in Castelnau
We are a family run business in construction industry since 1990, initially started by my father and now his sons have joined the business and looking to revitalised the business through the use of up-to-date technology. We undertake all types of building work through our team of skilled labour from a small job up to New Build. Our most recent job was conversion of a detached property to 7 HMO's.
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Latest review:
Extensions- 29 Apr 2026
Heera, Jagthar and team was my first personal experience with builders. Let me tell you, it was a pleasure to have them do our porch and other renovations in the house. They are so courteous, hard working and provided a great service. Firstly, I had a comprehensively written quote breaking down all of the steps required. Heera then ensured to keep me in the loop of any developments/any changes of plan required, outlining the reasons why and options, making it easy to understand and work together to completion. Their finish was to a high quality and they would always go the extra step to ensure this. I highly recommend AS Builders for any job and will definitely use them again in the future, and would recommend to my friends and family also. If you are considering them, grab a free quote and go from there... That's what I did! Thank you AS Builders for our renovations!
G SINGH
Rating: 5 out of 5
Conversion Specialist in Castelnau
G SINGH BUILD is your trusted partner for high-quality home improvement and building services. Specializing in carpentry, bathroom fitting, fencing, gutter installation, driveways, and a wide range of general building work, we bring skill, reliability, and craftsmanship to every project. Whether you're renovating your bathroom, upgrading outdoor spaces, or tackling a full home improvement job, G SINGH BUILD delivers durable, precise, and beautifully finished results—on time and on budget. We take pride in turning your vision into reality with a commitment to excellence and customer satisfaction.
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Latest review:
Painting & Decorating- 26 Mar 2025
G singh gaves me an excellent job more than my expectation and helped me a lot as i dknt know much about construction work thanks G SINGH
BlueCrownBuilders
Rating: 4.8 out of 5
Conversion Specialist in Castelnau
Hi My name is Satinder Singh @BLUECROWN BUILDERS LTD I am a specialist in variational constructional activities : Groundworks specialist (Drainage, Utilities, Concrete finishing, Kerbs, Edges Concrete slabs, Foundations) In house/ paint and decorating and house renovations Gardens Drives/patios Hedge cutting/trimming Clearances
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Latest review:
Garden Maintenance- 3 Jun 2025
Great job done for an overgrown garden, very clean work, took all the gardening waste with them and cleaned the patio and the lawn. Very polite man and never needed to explain the job after the first convo. Definitely recommend him, very humble and honest guy!
Vasile Balta
Rating: 5 out of 5
Conversion Specialist in Castelnau
Thank you for reading this I’m Vas( owner of BALTA COMPLETE CONSTRUCTION LTD)from 16 started as a apprentice in construction industry, have work over the years on big projects also small ones , when I was about 30 years old whit lots of experience in house refurbishment, extensions and lofts , decided to open my business, it was the best idea I take Ower focus as a business is a hight quality service, on all projects(big or small) and the feedback from the profile prof this As a person in charge whit the projects, I’m very easy to talk to, friendly , also more than happy to sort issues out Thank you for reading this As a business ower focus is on quality, high end finishes and trat each coustumer whit respect, and live them happy after the project is finished
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Latest review:
Conversions - General- 24 Apr 2026
I recently had extensive work completed in my flat by Vas, and I couldn’t be happier with the result. The service was excellent from start to finish. Not only was the quality of the work consistently high, but the whole experience was smooth and stress-free. What really stood out was Vas’s level of skill and versatility. Every aspect of the project was handled with care and professionalism — from plumbing and new water heating pipes, to new electrics, installing a new kitchen, laying a beautiful wooden floor, renovating the bathroom, and even replacing doors with a sliding door system. Each element was completed to a very high standard. On top of that, Vas was friendly, proactive, and easy to communicate with throughout. Nothing ever felt like too much trouble, and it was clear he takes real pride in delivering great results. It was genuinely a pleasure to deal with Vas, and I would highly recommend his services to anyone looking for reliable, high-quality work. Thank you again!
Prime Builders Contractor Ltd
Rating: 5 out of 5
Conversion Specialist in Castelnau
Specialists in home renovations, refurbishment and redesign, Our role is to deliver the renovation of your dreams, within your budget.
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Latest review:
Demolition- 19 Sep 2018
Lukas and his team did an excellent job. They arrived on time, were polite and friendly and worked incredibly hard. Would recommend.
Roofing and Building
Rating: 4.9 out of 5
Conversion Specialist in Castelnau
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.
CS GAS AND ELECTRIC
Rating: 4.6 out of 5
Conversion Specialist in Castelnau
As a fully qualified multi-trade professionals, We offer comprehensive building and renovation services across London. Our expertise spans gas, electrical, and construction work, backed by Gas Safe Registration and NICEIC certification. ## Services **Building & Construction** - Extensions and loft conversions - Bathroom renovations - Structural modifications - Carpentry and joinery **Gas & Electrical** - Boiler installations and servicing - Gas safety certificates - Full electrical installations - Rewiring and testing We handle projects of all sizes with the same dedication to quality and safety. My multi-trade expertise means efficient project management and seamless coordination of all aspects of your renovation. I'm fully insured, and all work comes with a guarantee. **Certifications** - Gas Safe Registered - NICEIC Approved - CSCS Card Holders For free quotes or to discuss your project, contact me today. We serve Hayes and surrounding areas, delivering reliable, professional service with attention to detail.
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Latest review:
Gas Work- 29 Jan 2026
Excellent job. Highly recommended. Thank you Avi and Mandeep 🙏
Kp building
No reviews yet
Conversion Specialist in Castelnau
Here at kp building we want the best for our clients.we are a building company that has all your building needs under one roof.we specialise in loft conversions and extensions to a very high standard. We also do all types of building work no job to small. References available on request and can show jobs that I have completed.
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Mati Construction
Rating: 5 out of 5
Conversion Specialist in Castelnau
We are a family company with over 15 years of experience. Our team is highly professional. We offer wide range of services which include: - lofts, extensions - bathrooms and kitchens renovations - painting, decorating, wallpaper - flooring (all kinds) - roofing - property maintenance - building renovations/ rooms renovations - plastering, tiling, rendering and many many more!
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Latest review:
Conversions - General- 23 Feb 2021
Mati Construction employs a dedicated and trustworthy team of highly qualified carpenters whom I can only recommend. Pawel’s precision to work and turnaround time in completing the job has been to our full satisfaction.
Leon building contractors limited
Rating: 5 out of 5
Conversion Specialist in Castelnau
Hi.Welcome to our profile. We are well established building company working in London and surrounding areas. We are specialists in loft conversion and extension. All kind of building works undertaken.also happy to provide photographs and references of our previous happy customers.We offer free quotes.Fully insured,skilled trades men. Finish projects on time limit to suits you. We are proud member of Association of Master Tradesmen and check a trade. thanks for visiting our page.
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Latest review:
Conversions - General- 22 Sep 2023
Got 4 quotes for this project. The quote from Leon Building Contractors was competitive.I visited another site to see their work. I was happy with what I saw and the quoted price so hired Vicky and his team for this projects. Vicky was very helpful throughout which made the process less stressful. Very happy overall. Will hire them again
Ionut negru
Rating: 5 out of 5
Conversion Specialist in Castelnau
Hi. My name is Ionut Negru and I am a skilled worker in the field of painters and decorators, tiles, laminate flooring and besides that i also do a same things related to plumbing, electrical and carpentry. I am a person who wants to make the customer satisfied and happy. I always offer good prices end high quality Thank you for your cooperation.
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Latest review:
Conversions - General- 14 Nov 2023
Skilful good quality work, very tidy, good communication, professional approach. I will be happy to hire Lonut again.
Luca Piletto
Rating: 5 out of 5
Conversion Specialist in Castelnau
With over 15 years of experience GS specialise in garage conversion , extensions and renovations. Our company consistently provide quality workmanship from initial planning through to design, build and finish professionally and effectively.
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Latest review:
Conversions - General- 7 Oct 2022
Luca and his team were superb all the way through and handled the job brilliantly. From the initial quote, Luca was warm and friendly and gave me every confidence in the project. My precise needs and requirements were evaluated before anything happened, and Luca came up with some great ideas to maximise the result of the build. The whole process was smooth from start to finish with regular updates on progress. The final result was outstanding, I couldn't be any happier! Excellent quality workmanship and nothing was too much trouble. Luca's team are so good to work with, Walter was an absolute pleasure and was incredibly kind and respectful (I have a young daughter and nothing noisy was done during nap times!). The project cost stayed exactly to quote too. I hope to work with GS Build & Design again in the future. Thank you very much for everything!
STONES ARCHITECTS LIMITED
Rating: 5 out of 5
Conversion Specialist in Castelnau
As a RIBA Chartered Practice we offer our clients innovative space solutions and a broad spectrum of architectural services. With experience in managing all aspects of the design and build process we are committed to providing clients with a truly bespoke service. Our primary objective is to deliver high quality projects through a deep and thorough understanding of both the client brief and budget.
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Latest review:
Architecture- 1 May 2024
Very professional firm, great communications. I'm very happy with their service. I would happily recommend them.
Cocis Construction Group
Rating: 5 out of 5
Conversion Specialist in Castelnau
Cocis Construction Group LTD is a family-run construction company with over 25 years of hands-on experience in the trades. We specialise in home renovations, extensions, bathroom and kitchen refurbishments, and property development across London. As a young, ambitious company, we combine traditional craftsmanship with fresh ideas and modern techniques to deliver projects efficiently and to the highest standards. Our team takes pride in attention to detail, clear communication, and building lasting relationships with homeowners, landlords, and property investors alike. At CCG, we don’t just build structures—we bring visions to life, turning ideas into beautifully finished spaces. Contact us today for a free quote and see how our expertise and dedication can make your next project a success.
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Latest review:
Cocis Construction Group done the full interior painting of our 5 bedroom house and we are really happy with the result. The team was polite and worked very hard every day. They kept things clean and finished everything on time like they said they would. The paint finish looks great and the whole house feels fresh again. Would definitely recommend them if you need painting done.
Almjd
No reviews yet
Conversion Specialist in Castelnau
Fantastic Services, based in London, UK, is a leading provider of home refurbishment, gardening, and handyman services, operating since 2009. With a mission to simplify property maintenance, the company offers a comprehensive range of solutions tailored to both residential and commercial clients across London and surrounding areas. Their home refurbishment services include full property renovations, kitchen and bathroom makeovers, painting, and decorating, all delivered by skilled tradespeople who prioritize quality and precision. In gardening, Fantastic Services excels in landscape design, lawn care, hedge trimming, garden clearance, and maintenance, ensuring outdoor spaces thrive year-round. Their handyman services cover everything from minor repairs, such as fixing leaky taps or hanging shelves, to complex tasks like furniture assembly and electrical or plumbing work, with a team of insured, experienced professionals equipped with the right tools. What sets Fantastic Services apart is their commitment to customer convenience, offering flexible scheduling, same-day appointments, and a user-friendly online booking platform via the GoFantastic app. They emphasize transparency with upfront quotes, no hidden fees, and a Fantastic Club membership for exclusive discounts. With a focus on reliability, safety (all tradespeople carry public liability insurance up to £1 million), and customer satisfaction, Fantastic Services has built a strong reputation. Their dedication to high standards and eco-friendly practices makes them a trusted choice for transforming homes and gardens throughout the UK
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Rc builders
Rating: 5 out of 5
Conversion Specialist in Castelnau
Family run company with 20+ years experience using time served and fully qualified tradesmen Finishing to a high standard regardless of your budget. All work fully guaranteed
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Latest review:
Restoration & Refurbishment- 30 Apr 2026
Job was completed quickly and to a great standard. Reasonably priced and we would definatley use them ahain

4.9

Top rated Conversion Specialists

Our Conversion Specialists in Castelnau, are rated 4.9 out of 5 based on 46 reviews from customers like you.

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What types of services are offered by conversion specialists in Castelnau?

Conversion specialists are the people you need to make underused areas of your home practical and fit for purpose.

If you need to increase your living space and improve its functionality, a conversion specialist can help with:

Loft conversions: Turning attics into bedrooms, offices, or storage spaces.
Garage conversions: Transforming garages into living areas, studios, or utility rooms.
Basement conversions: Creating usable living spaces in previously underutilised basements.
Barn and outbuilding conversions: Updating detached buildings for modern use, such as guest accommodation or home offices.
Internal reconfigurations: Knocking through walls, creating open-plan layouts, or combining rooms.
Commercial-to-residential conversions: Adapting offices or shops into homes.

No matter the tasks of your conversion project, MyBuilder makes it easy to find local conversion specialists near you. Simply post your job and receive responses from conversion professionals in Castelnau who are available to take on your project.

Costs of conversions in Castelnau

Conversion costs in Castelnau vary widely depending on the type of work, the size of the space, and the materials involved.

As a rough guide, here’s what you can expect to pay for different conversion tasks:

Loft conversions costs: £40,000–£65,000+
Garage conversion costs: £15,000–£25,000
Basement conversion costs: £60,000–£120,000+
Barn and outbuilding conversions: £30,000–£80,000+
Internal reconfigurations: £5,000–£20,000
Commercial-to-residential conversions: £50,000–£150,000+
Hourly labour rate: £20–£35 per hour
Daily labour rate: £160–£280 per day
Demolition and removal costs: £500–£5,000+

Note: Material costs can vary widely depending on the type of conversion and the finishes you choose. For example, structural steel, roofing, and high-spec windows can increase costs significantly, while insulation or interior finishes may be more moderate. Discuss this ahead of time with any potential conversion specialists to ensure you get the right quote.

If you’re seriously considering a conversion for your home, Castelnau conversion specialists will be the best source of accurate pricing information. Find your preferred conversion specialists near you to ask for a quote tailored to your project specifics.

Find a conversions specialist in Castelnau with MyBuilder

Converting part of your home is a big investment, so finding the right tradesperson is key to ensuring a smooth and successful project. MyBuilder connects you with verified conversion specialists in Castelnau, giving you control over who you hire and how you manage your project.

Step 1: Post your job on MyBuilder for free

Start by describing the type of conversion you need on our platform. Give as much detail as you can! You can also include images to give tradespeople a better idea of the work you would like completing. Once posted, your job is shared with conversion specialists in Castelnau.

Step 2: Review and contact Castelnau conversion specialists

You can browse company profiles to find the right Castelnau conversion specialist for you, check out previous work, and read genuine customer feedback. Once you’ve decided on some potential conversion specialists, you can reach out to discuss the project details further and request detailed, itemised quotes that outline labour, materials, and timelines, helping you compare options clearly before making a decision.

Step 3: Make your final choice

Now that you’ve gathered the information and received detailed quotes from Castelnau conversion specialists, you can easily make your final choice in just a few clicks.

By comparing prices, timelines, and approaches, you stay fully in control of who you hire and how your conversion is carried out. Once you’ve selected the right tradesperson for your project, you can arrange a suitable date and time, and get your conversion underway!

MyBuilder verifies each tradesperson when they join by checking ID, company registration, and relevant qualifications for regulated industries. Post your conversion job on MyBuilder today and start receiving responses from interested conversion specialists in Castelnau.

FAQs: Questions about Castelnau conversions

How do I find available conversion specialists in Castelnau?

You can find local conversion specialists through platforms like MyBuilder, where you can compare profiles, reviews, and quotes to help you choose the right professional for your project.

How long does a typical home conversion take?

Most home conversions take between 4 and 12 weeks, depending on the size, complexity, and type of project. Larger structural changes or regulatory approvals can take longer.

Are conversion specialists required to have insurance in Castelnau?

Yes, reputable conversion specialists typically hold public liability insurance to cover potential damage or accidents during the project. Some may also carry employer’s liability or professional indemnity insurance, depending on the work.

Do conversion specialists in Castelnau offer warranties or guarantees on their work?

Many conversion specialists offer warranties or guarantees for workmanship and structural integrity, though the terms and duration vary by company. Always confirm what’s included before hiring.

Can a conversion specialist in Castelnau help with planning permission and building regulations?

Yes, many conversion specialists can advise on planning permissions, submit applications, and ensure your project complies with building regulations, although some homeowners choose to handle these steps themselves.

How far in advance should I book a Castelnau conversion specialist?

It’s best to book at least 2–4 months in advance, especially during busy periods like spring and summer. Specialist conversions may require even longer lead times.

Can conversion specialists handle design as well as construction, or will I need an architect too?

Some conversion specialists offer design-and-build services, managing both stages of the project. For more complex conversions or structural changes, you may still need to involve an architect or structural engineer.