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Extension builders near me: Find and book local home extension builders

Whether you're adding a new room or building a full extension, hiring an extension builder ensures professional construction and adherence to regulations. MyBuilder connects you with verified building professionals who specialise in home extensions, conversions and renovations. Read reviews, post your job for free and get matched with local extension builders near you!

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Once your job is posted, you’ll get responses from interested tradespeople through the website.

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Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders

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  • Our Vision: At Crown Building Contractors Ltd, our vision statement is to be a leading building and construction company. We have a proven track record in providing an honest and reliable service with no compromise on quality or service. Our Clients are at the heart of everything we do and so is the quality of our construction work. Our Mission: Our Mission Statement is to ensure professional, trusted, quality, friendly and cost effective tradespeople throughout all aspects of our building work. Based in the heart of Swansea, we offer our clients expert advice and free quotations. We are experienced building contractors specialising in high-quality construction, refurbishment, and fit-out projects across South Wales. From residential homes to commercial properties, our team is trusted to deliver reliable workmanship, practical solutions, and a professional service every step of the way. Whether you’re looking to transform your living space, modernise your business premises, or take on a large-scale building project, we’re here to make it happen. With a focus on clear communication, attention to detail, and meeting deadlines, we ensure your project is completed to the highest standard — on time and on budget.

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  • My name is Paul and I am trustworthy individual with wide range of skills and knowledge in building and roofing which I use to give all my customers the job they want and deserve, pride is taken in all my work and leaving jobs clean and tidy is very important to me. I am genuinely a good person and only aim to make customers feel comfortable with me throughout the job from very start of the process until the end result .

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  • Founded in 2010, we have over a decade of experience delivering high-quality construction services across London. We specialize in all aspects of general construction, including refurbishments, loft conversions, extensions, roofing, building elevations, and basement works. Our team is committed to excellence, ensuring every project—whether a small refurbishment or a full structural reconfiguration—is completed to the highest standards. We operate across Central, South-West, West, and North-West London, including Westminster, Belgravia, Pimlico, Ealing, Notting Hill, Hampstead, and more. What sets us apart is our craftsmanship, reliability, and client-focused approach. We work closely with our clients to bring their visions to life, offering expert guidance and tailored solutions. Whether renovating, extending, or building from the ground up, we’re here to make your project a success. Contact us today to discuss your construction needs!

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  • builder / stonemason to trade pick and point rendering fencing paving and digger work

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  • We are a Bristol based company with over a decade of experience in the construction industry. We cover all aspects of construction and are more than happy to provide project management services alongside our labour to take the stress out of your build.

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  • Mills Electrical is a trusted electrical company based in East Grinstead, serving domestic and commercial customers across the South East. We offer a full range of electrical services including EICR testing, fault finding, rewires, consumer unit upgrades, lighting installations, EV car chargers, and renewable energy solutions. Fully qualified and insured, we provide friendly, reliable and professional workmanship on every job. We also offer a 24/7 emergency callout service for when you need urgent electrical support. Free estimates available. Contact Mills Electrical today for safe, efficient and dependable electrical services you can rely on.

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  • I have been working as a ground worker for 25 years. I have also been a foreman for 15 years. I have experience in foundations, extensions, patios, ground works, drainage and pipe work. Basically I can build a whole house.

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  • We're a family run business with over 30 years experience in the building trade, we cover all building work from new builds to garden walls, extensions, garages/summerhouses, pointing, flagging/paving, internal/external alterations.

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  • Over 15 years experience in Construction industry, For more information please message me THANK YOU.

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  • I’m Paul Davies, a specialist in residential design and build. Unlike traditional designers, I bring years of hands-on building experience to the drawing board. This means the plans I create for your extensions or conversions are not only creative but also structurally practical and budget-conscious. I provide a seamless bridge from the initial architectural drawings to the final construction, ensuring a smoother, more efficient project for you."

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  • Freeman Construction is a reputable building company with over 20 years of experience in the construction and construction management industry. We specialise in delivering high quality construction services, including residential, commercial, and industrial projects. With two decades of experience, Freeman Construction has developed a deep understanding of various construction processes, regulatory requirements, and best practices. This expertise allows us to navigate challenges effectively and complete projects on time and within budget. We contract a team of highly skilled professionals, including architects, engineers, project managers, and skilled tradespeople. This diverse expertise ensures that every aspect of a project is handled with precision and care. Freeman Construction is committed to maintaining high standards of quality in every project. We utilise high quality materials and employ stringent quality control measures to ensure durability and safety. We prioritise client satisfaction by maintaining open and clear lines of communication and involving clients in every step of the project. This collaborative approach helps to understand and meet specific client needs. At Freeman Construction we offer a wide range of services, including project management, design build, renovations, and general contracting. This versatility makes us a one-stop solution for various construction needs. Our company is dedicated to sustainable building practices, incorporating eco-friendly materials and energy efficient designs to minimise environmental impact. Over the years, Freeman Construction has built a solid reputation based on reliability, integrity, and excellent service. Many of our projects come from repeat clients and referrals. Keeping updated with the latest construction technologies and methodologies, enabling them to offer innovative solutions that enhance project efficiency and reduce costs. Free advice, guidance, quotations and no obligations.

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  • Joinery jobs to high standard. No job to small all jobs taken

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  • J&K Contracting Ltd are a small groundwork building contractor with over 35 yrs experience in the construction industry From small domestic projects to large commercial projects All cpcs cscs citb qualifications And fully insured

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  • All general building work, extensions, alterations & modifications, patios, garden walls, kitchens.

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  • Family run business which takes care and time in all of our work. A complete spectrum of works offered from small snagging jobs through to design and new build. All work completed with the backing of decades of experience.

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  • Gjcottrellbuilding has been in the building trade since 1989 when studying bricklaying at south Devon college, since then I have worked for many companies large and small, finally in 2002 I began my above company, I offer an affordable solution when the job needs doing correctly, with care, quality and precision with an eye for detail and a full team behind me I can deliver full builds, extension, driveways, patios and landscaping

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4.4

Top rated Extension Builders

Our Extension Builders, are rated 4.4 out of 5 based on 290 reviews from customers like you.

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Find local extension builders near you for construction and renovations

Home extension builders provide a range of professional services to help you add more space, improve functionality, and upgrade the value of your home.

Whether it’s building new extensions, renovations or loft conversions, these are significant projects.. That’s why finding the right extension builder near you is key.

MyBuilder makes searching for extension builders near you easy. Just post your job for free, review profiles of interested house extension builders and compare quotes and customer feedback. It’s quick, straightforward and puts you in control.

Don’t put off your extension project any longer! Find interested and available house extension builders on MyBuilder today.

What services do local extension builders near me offer?

Extension builders help create more space and enhance the functionality of your home. From new builds to conversions and refurbishments, the right professional ensures that your project meets building regulations and is completed to a high standard.

On top of that, extension builders can also assist with structural work, planning and project management to ensure a smooth, hassle-free build. Whether you’re looking to extend your living room or add a second storey, extension builders on MyBuilder have the know-how to get the job done.

  • New builds and extensions: Constructing new rooms, conservatories or expanding existing spaces.
  • Loft and attic conversions: Transforming unused lofts into functional rooms like bedrooms or offices.
  • Home renovations and refurbishments: Upgrading your home, including kitchen, bathroom and living space remodelling.
  • Structural work: Foundations, roofing and major structural changes to your home.

MyBuilder makes it easy to find verified extension builders across the country, connecting you with local professionals who specialise in home extensions and structural improvements.

Simply post your project on our site for free, and local extension builders near you will register their interest. You can then discuss your plans, request quotes, and review profiles to find the right builder for your home and budget.

What jobs can extension builders near me help with?

Extension builders specialise in the construction, design and completion of home extensions and large building projects. Their services cover a wide range of tasks, from adding extra rooms to structural renovations.

Here are some of the key jobs an extension builder can assist with:

It’s easy to find the right home extension builder near you on MyBuilder. Simply post your job for free, read real reviews and connect with local extension builders, without the need to conduct the search yourself.

Find an extension builder near you with MyBuilder (in 5 simple steps)

If you’re wondering, “How do I find an extension builder near me?” MyBuilder makes the process simple.

Step 1: Post your extension job on MyBuilder

Use MyBuilder’s straightforward form to post your job in detail. Include information about your plans, materials, finishes, and photos or drawings if available. The more detail you provide, the easier it is for local extension builders to understand your vision.

Step 2: Browse local extension builders in your area

Once your job is live, you can browse through profiles of local extension builders near you who are available to take on your project. Review their experience, previous projects, and customer feedback, all before deciding who to hire.

Step 3: Discuss your project with local builders

Select the extension builders who are most aligned with your project and contact them on the platform to discuss your job and ask questions. This is the perfect time to talk through your requirements, timeline, budget, and any planning or structural considerations.

Step 4: Hire the extension builder that best fits your needs

When you’ve received quotes and details from multiple extension builders in your area, review them carefully and choose the one that best suits your needs.

Make sure all costs, materials, and timeframes are agreed upon in writing before work begins. Having a written contract in place helps avoid any confusion or misunderstandings during the project.

Step 5: Your builder completes the extension

Once you’ve appointed your builder, they’ll arrange a schedule and get started. When the project is complete, you can leave a review of your experience to help future homeowners make informed choices.

How much does an extension builder cost?

Extension builders generally charge between £200 and £300 per day for larger projects such as house extensions or full property renovations. For bespoke designs or complex structural work, prices are usually agreed in advance based on project scope, materials, and labour requirements.

Typical costs for popular extension projects:

Note: If you are unsure about how much your extension building job will cost, you can easily talk to local professionals on MyBuilder.

All you need to do is post your job with the questions you want answered, and extension builders near you will be in touch.

What qualifications should extension builders hold?

When hiring an extension builder, it’s a good idea to check that they have the right training, certifications, and insurance to complete your project safely and to a professional standard.

Look for memberships with recognised trade bodies such as the Federation of Master Builders (FMB), and confirm that the builder offers a written guarantee on their work. Always ask for proof of public liability insurance to protect against any accidental damage during construction.

Key qualifications and checks for extension builders:

  • CSCS Card – Confirms the builder has the skills and training to work safely on construction sites.
  • NVQ (Construction or related trade) – Shows competency and hands-on experience in their specific trade.
  • SMSTS Certification – For builders managing projects, this ensures proper safety and site supervision training.
  • Gas Safe Registration – Required if the builder will work with gas systems or appliances.
  • NICEIC Certification – Verifies that electrical work meets safety standards.
  • FMB Membership – Demonstrates credibility, professionalism, and a commitment to best practices.
  • CPCS Card – Confirms that they’re qualified to operate construction machinery if needed.

All tradespeople on MyBuilder undergo checks at registration, such as ID documents, company details, certifications for regulated jobs and skill assessments.

Posting your job on MyBuilder is simple and free. Just type in what you need, and our clever match-making process will help you find the right extension builder for your job.

Finding extension builders near you is easy with MyBuilder

Finding an extension builder near you isn’t always easy, especially when you want someone available to take on your project.

Follow these simple steps to connect with local extension builders through MyBuilder:

  • Post your extension job online for free and reach local extension builders without any upfront costs.
  • Receive interest directly from available professionals, no chasing or cold calls needed.
  • Every builder on MyBuilder is ID-checked and skills-assessed before joining, so you can hire with confidence.
  • Review each builder’s profiles, customer feedback, and past project photos to compare.
  • Book the right extension builder for your job with confidence. It only takes a few clicks.

Choose who you’d like to speak with, discuss your project in detail, and hire the best builder for your needs. Post your job for free today and see why homeowners across the UK trust MyBuilder to find local extension builders.

FAQ: Your questions about extension builders answered

Do extension builders near me need insurance?

While it isn’t a legal requirement, most builders carry public liability insurance to cover accidental damage or injury during work. Always ask to see proof of insurance before agreeing to a project.

Do local extension builders offer guarantees on their work?

Yes, many local home extension builders in your area should provide a guarantee covering their workmanship for a set period, often lasting several months to a few years depending on the project size. Always check what the guarantee covers before work begins.

What should I ask before hiring an extension builder?

Ask about previous work, project timelines, cost estimates, and payment terms. It’s also wise to discuss materials, planning permissions, and how any unforeseen issues will be handled. You can easily view examples of previous projects of extension builders near you on MyBuilder.

How much deposit should I pay for an extension project?

Deposits usually range from 10% to 20% of the total cost. Make sure the payment schedule, scope of work, and conditions are clearly written into a contract before the extension project starts.

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