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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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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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  • JB Contracting is a highly experienced contracting company based in Plymouth covering Devon and Cornwall. With over 20 years of experience, our range of expertise is vast. From extensions, Insulated rendering, Kitchen and bathroom refurbishments, commercial contracts, garden and patios or general refurbishments, we cover it all.

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  • Experienced and reliable bricklayer based in Northampton, serving Northamptonshire and surrounding areas. I specialise in all aspects of brickwork and blockwork, including garden walls, extensions, structural alterations, repointing, and repairs. ​I take pride in delivering top-quality workmanship, clean sites, and clear communication from start to finish. Fully insured and focused on customer satisfaction—no job is too big or too small. Contact me for a free, no-obligation quote!

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  • We do quick service with no excuses

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  • Jscrefurbs is an established carpentry and refurbishment specialist backed by over 30 years of industry experience. Founded 20 years ago by sole trader Jason, we handle everything from residential house renovations to large-scale new builds and hotel projects.We specialise in all aspects of 1st and 2nd fix carpentry, including structural roof construction, partition walls, shuttering, staircases, and expert kitchen fitting. From standard finishings like skirting, architraves, and doors to high-end, bespoke architectural joinery, we deliver exceptional craftsmanship tailored to your exact specifications. Fully qualified, reliable, and built on decades of expertise.

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  • I'm a time served carpenter/ general builder.i have a vast experience in all construction work and domestic homes,with over 30 years experience

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  • Beautiful homes, built around you. Homes, extensions and renovations crafted with care and built to the highest standard. We are motivated by great design & the best finish.

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  • Been established since 1994, over 32 years self employed, general Builder with vast experience working through out Aberdeenshire on projects including building new houses, extensions, roughcasting, repointing, drainage and landscaping works. Also carry out diamond drilling, sawing and coring through Granite walls. From the ground up our business is built on a solid foundation of quality, reliability and long term relationships.

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  • Stone and Beam is a Surrey-based construction company with 15 years’ experience. I’m a qualified carpenter and bricklayer covering everything from brickwork and carpentry to roofing, repairs and general building work. Reliable, tidy and committed to a high-quality finish on every job. Based in Godalming and covering the surrounding Surrey area.

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  • We provide high-quality building and property maintenance throughout the local area. Our skilled team handles everything from room remodels to complete property extensions, specializing in external wall insulation and silicone rendering. As a family business, we take immense pride in our craftsmanship and prioritize trust, reliability, and clear communication with every client.

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  • Experienced Builder | Loft Conversions, Extensions & Renovations | 11+ Years Experience My name is Drilon, and I have over 11 years of experience in the construction industry, delivering reliable and high-quality building services. I take pride in providing professional workmanship, strong attention to detail, and maintaining a clean and organised working environment. Clear communication and reliability are very important to us, and we aim to complete every project to the highest standards from start to finish. Our services include: • Loft Conversions • House Extensions • New Build Projects • Carpentry & Woodwork • Brickwork • Plastering Why Choose Us • Over 11 years of experience in the construction industry • High quality workmanship and attention to detail • Reliable, punctual and professional service • Clean and tidy work environment • Honest advice and transparent quotes • Friendly customer service • Free quotations We are committed to delivering every project with professionalism, reliability, and a strong partnership with our clients, ensuring their vision is achieved to the highest standard. Please browse through our photos of previous projects — our work speaks for itself. We look forward to hearing from you.

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  • Apprentice Joiner with experience across 1st fix, 2nd fix and final fix joinery. I take pride in producing clean, accurate work while continuing to develop my skills and knowledge across different aspects of construction. Reliable, hardworking and always looking to improve and learn new techniques.

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  • Hi my name is Richard. My company is RABuilders . We can fulfil all your construction need. From ground up ie. Groundworks , patio's , brickwalls to extensions an much more .

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  • We are making the world a better place.

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  • Been in the building trade for 10years now, covered everything from plastering, landscaping, bricklaying, conservatories,extentions, patios, driveways and painting and decorating aswell as many more

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  • Specialists in loft conversions, side extensions, rear extensions, porches, bathrooms, kitchens and all aspects of roofing, including flat and pitched roofs. We provide a complete range of building and renovation services, including structural steelwork, brickwork, blockwork, carpentry, plastering, plumbing, electrical installations, flooring, tiling, insulation, rendering, decorating and general property improvements. Whether you are looking to create additional living space, extend your home, renovate an existing room or carry out a complete property transformation, we can manage your project from start to finish. We work with attention to detail and take pride in delivering high-quality workmanship, reliable service and professional results. From the initial work through to the final finishing touches, we aim to make every project straightforward, efficient and built to last.

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4.4

Top rated Extension Builders

Our Extension Builders, are rated 4.4 out of 5 based on 288 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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