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Find Local Extension Builders Near Me

Get everything you need to know about finding a house extension builder. Get a quote for single or double floor, rear, side and return extensions. Below, we cover tips to help you find a local extension builder:

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Take a look at our House Extension specialists profiles, read reviews and request quotes directly.

How to find a reliable, local extension builder

A house extension can transform your property, adding a lot of living space and value to your home. Whether you need a new bathroom or want to expand your kitchen, a home extension may well be the home improvement solution for you.

To make sure that building work goes as smoothly as possible, we recommend you hire a local building service with enough expertise to carry out a high quality job.

What can a house extension builder help you with?

A house extension is a great solution for homeowners who need more space, but don’t want to move. They add a lot of value to your property, helping you make the most of your spaces by allowing you to reorganise the layout of your home.

A house extension specialist can help with:

  • Single storey extensions
  • Double storey extensions
  • Side extensions
  • Rear extensions
  • Wrap-around extensions
  • Garden rooms
  • Basement extensions

Other space-adding improvements include installing a conservatory, a garage conversion or a loft conversion.

Rear and single storey extensions tend to be smaller and less expensive to install, whilst wrap-around and double-extensions offer more space but cost more to build. Not sure what type of extension would be best for your home? Read our 2023 extension cost guide for more details about the different extension types, or speak to a skilled extension builder today to get some advice and a free quote.

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Picture of a brickwork side extension with large windows and skylight

Factors to consider when choosing an extension builder

It’s really important that you choose a reliable extension builder company to carry out work on your home. Failing to do this can result in stress and expensive repairs. 

Before you hire, you should do your research to ensure that your builders:

  1. Are an experienced company with a strong history of successful projects
  2. Have all the necessary licenses and insurance needed to protect you and their workers
  3. Have a good range of positive reviews from previous customers vouching for their reliability
  4. Are available to carry out the work in the timeframe you need it by
  5. Are quoting a price and payment option that you are happy with, having compared the quote with other local extension companies

A local extension contractor is more likely to respond quickly, as they’ll be right around the corner and ready to help.

Post a job today to find a reliable, local extension builder.

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How much does it cost to hire an extension builder?

Illustration of a man with a beard surrounded by different extension types, each labelled with costs to install

How much you’ll end up spending on your house extension project depends on a range of factors, including the type of home extension and its size, and where you live in the UK.

On average, you could spend anywhere between £45,000 and £160,000 on a house extension. Buying a prefab is a cheaper solution, ranging from around £45,000 – £55,000, whilst wrap-around and basement extensions are on the upper bracket range, costing upwards of £60,000.

Read our 2023 extension cost guide for the full list of costs, as well as more information about the different extension types available, and money saving tips. Or, for a more accurate quote for your specific project, speak to an extension building service today.

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What planning permission do you need for an extension?

Whether or not your extension project will require planning permission depends on whether it falls under permitted development (PD) rights. If you want to go beyond these rights, such as by building an extension that’s bigger than 50% of the total land area around the original house, you’ll have to apply for permission before building works can begin.

Most planning permission applications take between 8 and 12 weeks, so make sure you factor this into your project timeline.

For more information, read our planning permission guide or visit the Planning Portal website.

Picture of a modern second storey house extension with large window that has a black frame

Questions to ask a local extension builder before you hire

Whether you want a kitchen extension or a new bedroom with an ensuite, we recommend you ask the following questions before you hire a building service:

Do you have public liability insurance and what does this cover?

While it’s not a requirement for them to have it, it’s a good idea for your extension builders to have public liability insurance to cover you and them against any accidental damage done to your home or personal injuries. Make sure to always ask your builder what insurance they have before you hire them. This will guarantee protection for both parties and ensure your builder is legally compliant.

How many years of experience do you have?

Knowing how many years of experience your extension builder has will allow you to pick a tradesperson who you are confident has enough experience to carry out a high quality job. When you’re finding a builder through Rated People, head over to their profile to check out the pictures on their work gallery and their ratings and reviews.

Do you use subcontractors? If so, are they licensed and insured?

If your extension builder is planning on using subcontractors, then it’s a good idea to confirm the qualifications and insurance coverage of everyone who will be working on the project. Your builders will almost definitely be using a team of specialists, including plumbers, heating engineers and electricians. Anyone working with gas needs to be registered with Gas Safe, and anyone installing electrics (in England and Wales) needs to be Part P certified to be able to self-certify their work. These tradespeople will have valid documentation that you can ask to check.

What is your estimated timeline for completing the project?

Knowing what the estimated timeline is for completing the project  will help you set realistic expectations about how long your extension will take to complete.

How much will the job cost?

Asking how much the job will cost will help you budget for your project and will ensure price transparency before you hire. How much you’ll end up spending depends on the scope of your project, and where you live in the UK, so make sure you add plenty of details when you post a job.

Picture of a side extension with a tiled, slanted roof and plants around the side

Tips for working with a local extension builder

  1. Be crystal clear about what you want and how much you’re willing to spend. Clear communication is key to ensuring you and your extension builder are on the same page about your project’s requirements and your budget constraints
  2. Stay in the loop and ask for updates as the project unfolds. This will allow you to address any potential issues before they escalate
  3. Make sure you document agreements or changes to the original plan. Keeping a written record of all modifications to your project, including timelines and costs, will serve as a valuable reference point to prevent misunderstandings and ensure work is carried out to a high standard
  4. If you have any concerns, talk to your extension contractor straight away. Open discussion is more likely to lead to a swift resolution, and will help you maintain a positive working relationship with your builders

Find an extension builder

We are a team father and sons, with over 30 years of experience in Wood Occupations and construction sites, who's goal it's to provide our customers with quality services.

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Reviewed by Priyath on 22/3/2024

Pleasant to deal with. Few bits needed finishing never came back. Which was disappointing as this was promised.

"The renovation company, established in 2008 and based in Glasgow, specializes in: - Kitchen fittings - Bathroom fittings - Loft conversions - Full Home Refurbishment - House Extension With over a decade of experience, we bring your vision to life, ensuring top-notch execution and personalized service. We guarantee transparency (no hidden fees), punctuality, and high-quality services, all while maintaining competitive prices. Elevate your living spaces with us — your trusted partner in transforming houses into dream homes." "If you're looking for or need more references or evidence of our work, here's our second page where you'll find more useful information." - "Let me know, and I'll send you the information." Kind Regards Rafael

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Reviewed by John on 22/3/2024

Raphael done a great job of my bathroom, he was a very conscientious & tidy worker with a very friendly manner & I would use him again

At Bottega Interiors we deal with bathroom installations, bedrooms and kitchens. also handling anything from small leaks to full renovations. We pride our services with all aspects of works meaning you the customer won’t have the head ache of calling multiple trades people to complete one job. We take the stress out of your hands and handle the job all under one roof.

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Reviewed by Ryan on 20/3/2024

Did a great job! Will go to Keiran again when needed!

I'm a timeserved joiner,with acreddited city+guilds craft+advanced craft certification. I have 40 years carpentry&joinery experience. I cover all aspects and fixes of joinery and carpentry, i offer a friendly efficient and competitive service. I'm here to help with solutions and problem solving

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Reviewed by Robert on 20/3/2024

Derek did a magnificent job on the stag wardrobe, perfect job, he is an extremely nice person and we had a nice chat, especially when he found out the wardrobe was full of my wife’s clothes, who had recently passed away. I would recommend him without question,thanks Derek.

Our goal is to be the go2 rendering company in the north west. We are external rendering specialist with over 20 years experience within the trade. We offer complete rendering and internal plastering services. We work with our customers to ensure complete job satisfaction. justrenderinguk

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Reviewed by kathryn on 20/3/2024

Clean, friendly and professional. Came when they said they would and did a good job.

I have been doing building work now for the last 15 years I cover all types of building work to extensions, alterations conservatories, Landscapeing renovation, Plastering I enjoy doing different types of projects including the awkward stuff if your interested in any work being done please let me know I am happy to take a look and talk you through the jobs and different ideas Many thanks Andrew wall Asw Builder

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Reviewed by CAROL on 19/3/2024

Completed job to a very good standard, very fair price, cleared all the rubbushcaway at end of job as promised. Would recommend his services.

Kirkland Landscapes is a family run business with over 15+ year’s experience. We take pride and joy In our work and complete every job to the highest standard.

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Reviewed by Farooq on 19/3/2024

Highly recommended both lads worked tirelessly even in the rain to get the job finished on time. Worked immaculately tidied up every day and left the site spotless once they had finished. Paving and block work skills are 110% . We had a very old drain which other trades said would need to be dug out and moved costing ££££s Warren and Ridge managed to overcome this obstacle and finished the paving to a very high standard. A very honest team which is very rare these days. Highly recommended.

Hi there we have been fully qualified carpenters for over 30years.we pride ourselves on giving fare quotes for a quality job.if our quote has been beaten please give us the opportunity beat the winning quote were possible. Thanks for reading profile.

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Reviewed by Steven on 19/3/2024

Brilliant job by James even though I changed the date by 2 months. Nothing was too much trouble and left the work area really clean and tidy. Would definitely recommend and would have no hesitation in using again ????????????

We are a small business with an array of experience and knowledge in the building industry. Our workmanship and finish are both of the highest standards. We pride ourselves on our customer service and always take the time with our customers to ensure you are comfortable and understand the process from start to finish. Our attention to detail is second to none. At Kent Construct we offer a wide range of services that you can trust including: *Full house renovations. *Full kitchen refurbishment from rip out to completion. *Driveways, Patios, Decking. *Garage Conversions and extensions. *Bathroom installation from rip out to completion. *All aspects of roofing. *Tiling, Flooring, and Painting & Decorating. *Smaller jobs e.g single unit install or worktop install. Our aim is to consistently exceed our client's expectations. Our reliable, professional and prompt service sets us aside from our competitors. We take great pride in our brand. Kind regards Ricky

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Reviewed by Roger on 18/3/2024

We are 2 multi-skilled traders . We provide high quality work and reasonable price. We want to create long term relationship with our customers and MOST important for us - your SATISFACTION!

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Reviewed by jens on 18/3/2024

Here at dc services we pride ourselves with providing high quality work and friendly customer service, we have over 17 years of experience in the building trade. Dc services cover everything from bricklaying, roofing, joinery, landscaping and much more.

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Reviewed by DAVE HUMBERTONE on 18/3/2024

I found them hard working lads did a good job

Introducing C&P General Construction, a renowned general building company led by the esteemed general manager and main builder, Alex. With a stellar reputation backed by positive customer feedback, C&P General Construction excels in a wide range of construction projects, from small-scale ventures to high-end projects, including new builds, extensions, and lofts. Their expertise extends beyond standard construction to encompass high-end refurbishments, where they excel in delivering fine touches such as Italian painting and Venetian plaster. What sets C&P General Construction apart is their commitment to providing the best value for money. Their team of trustworthy builders ensures that every project is executed with utmost professionalism and precision, exceeding client expectations. Regardless of the scale or complexity of the project, C&P General Construction is dedicated to delivering exceptional results, making them the ideal choice for your construction needs.

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Reviewed by Jestine on 18/3/2024

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As a premier builder, we take pride in our rich legacy of delivering exceptional projects that stand as pillars of quality and durability. Our 10 years journey is rooted in a passion for construction excellence, a commitment to client satisfaction, and a relentless pursuit of innovation. From the inception of our company, we have set out to redefine the construction landscape by blending cutting-edge technology with time-honored craftsmanship. Our team of skilled professionals brings a wealth of experience to every project, ensuring that each structure we build is not just a physical entity but a testament to the values that underpin our work – integrity, precision, and a relentless pursuit of perfection. At C&B Builders, we go beyond bricks and mortar; we build dreams. Our commitment to sustainability, safety, and client collaboration sets us apart in the industry. We are more than just builders; we are partners in your vision, dedicated to turning ideas into reality. From residential masterpieces to groundbreaking commercial spaces, our diverse portfolio reflects our ability to tackle any construction challenge with ingenuity and expertise. Join us on a journey where each project is a testament to our unwavering dedication to excellence, and together, let’s build a future that stands the test of time.

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Reviewed by Mike on 18/3/2024

Very hardworking nice lads, communication was excellent. The tiling was very tricky in terms of cutting around multiple sockets and they did a great job. Would recommend

About DPC Construction, Portsmouth DPC Construction is a well-respected Damp Proofing and Building Company with over 40 years’ experience within Portsmouth, Hampshire, we cover Portsmouth, Southsea and surrounding areas up to 30 miles including Waterlooville, Havant, Southsea, Emsworth, the Witterings, and Southampton. DPC Construction Have a full surveying team carrying CSRT & CSSW qualified Surveyors including THOR HELICAL certification for structural repair strategies! You can rest assured on the correct diagnosis your property requires which guarantees the correct "first time" repair. We pride ourselves on providing a professional, caring and high-quality service and always meet our customers’ needs. Each employee that works for DPC Construction is fully qualified and insured and delivers on timekeeping, quality of work and value. We offer a full range of of remedial services both diagnosis & installation including: • Rising Damp Treatments • Penetrating Dampness • Brickwork • Concrete • Rendering/Plastering • Basement Conversions • Condensation Control • Tanking Systems Types A,B & C • Woodworm Treatments • Wet & Dry Rot • Roofing Services • Re-pointing • Wall Tie Replacement • Masonry Beaming • Crack Stitching • All Building work undertaken, please see our Building page! As GPI Contractors (Guarantee Protection Insurance) We can offer insurance backed Guarantees up to 15 years for Damp proofing, Waterproofing, Structural repairs and Timber Treatments carried out [premiums vary dependent on contract value] If you are trying to find a reputable company that can deliver the correct diagnosis and the ensuring the correct repair near you, why not give us a call? Our friendly, professional team will be happy to talk through your needs and give you a free, no-obligation quote.

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Reviewed by Gareth on 18/3/2024

I’ve been in the building trade for over 20 years and would like to think I’ve gained knowledge and experience in most aspects of domestic building i always like a challenge and try to make people’s concepts a reality I will always try my best to give a fair price and always adhere to time scales my main background is general building work .but I have a host of sub contractors working with me so we can take on more or less Any work you may require

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Reviewed by Kevin on 17/3/2024

Paul was fantastic arrived within 10 mins, wired for the job said he could do the job within the 2week timescale . He arrived prompt on the day and work was done professionally within 2 hours new French doors were fitted. I would thoroughly recommend Paul to anyone and will not hesitate to to use him again in the future.

At Warmseal we have over 30 years experience in uPVC Replacement Windows, Doors, Porches, Conservatories / Orangeries, Home Extensions and Conversions. Being truly independent, we are able to offer the widest range of products in the UK.

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Reviewed by Adele on 16/3/2024

We came across Nick and his team after we had been badly let down by a previous builder. He and his team finished the job (and provided an improved design) to an excellent standard and in a timely manner. Every discipline of tradesperson that attended our property were entirely professional and very pleasant to have around. They were all genuinely motivated by doing a job well and ensuring we were happy and we are! I would recommend without hesitation and would use them again in a heartbeat. Thank you!

A skilled builder honest and reliable. I put effort and seriousness in everything I do. I like to make all my customers happy! I have experience in: home improvements ,tiling/bathrooms repairs, furniture refurbishment, roofing,painting,fitting laminate flooring, Wood flooring,herringbone flooring,vinyl flooring , ,plastering.My aim is to provide the best service to you and your home. I guarantee my work is professional and the job will completed in a tidy and timely manner.

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Reviewed by Phil on 16/3/2024

Sebi and Iosef were great. Good communication, work rate, and quality. I'd happily recommend them and hire them in the future

Building Maintenance

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Reviewed by Merton on 16/3/2024

Hollywood joinery is a friendly company that specialises in cabinets an fitted wardrobes an all other joinery have been in the building trade for over twenty years an have experience in many other aspects of the building trade

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Reviewed by Pamela on 16/3/2024

Quick response, no nonsense, did a small extra job.Would use again

Bristol House Extensions is a family owned business. Our workforce is fully qualified and experienced at working in domestic and commercial properties and carries out work for our customer, customer satisfaction is our main priority.

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Reviewed by Darren on 16/3/2024

Darren, Mitchell and the team arrived on time, worked hard and delivered a great piece of work. Darren also completed an additional job which I had identified when they started. Work done to a good standard and they cleared up at the end. I would be very happy to have them back for other work.

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