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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.

Find an extension builder

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

I have been established for 13 years and cover all aspects of building. We specialise in extensions from footings to completion. We have extensive experience in structural steel work and jobs that are potentially difficult due to limited space. We have completed work for new customers to view and by contacting us we can arrange the nearest job for you to view. We cover all of Essex and are also happy to travel to London and Kent.

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Reviewed by Jack on 17/1/2023

Graham and his lads were great. Would highly recommend for your building works. Was always open book about costs and plan of action, spoke on the phone regularly and was always easy to get hold of to give you that piece of mind. Full kitchen extension 5m x 3m from start to finish. Trusted with access to the property and never had any issues.

The company is focused on a few very important key words in our business: First quality. There's a reason this was mentioned first. Projects of sufficiently high quality are our best advertising. On it we build our reputation. Second, customer service. We are specialists in the construction industry, the customer does not have to. We are here to advise, explain technical issues, assist in the selection of materials. Communication with our Customers is very important for us. We realize that the building project is often associated with high costs, stress and making extremely important decisions of our Customers. Thirdly complexity. We are able to meet 100% of the investment, including the stage of design, planning and site preparation. By working with us you gain: •Professional services during the implementation of the project construction •Assistance in obtaining planning permission, approvals and any other permits related to the project •Attractive prices •Good management •All work insured •Guarantee up to 10 years •Project completion to the dot and as per budget

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Reviewed by Simon on 22/5/2023

We enlisted the services of Home Shape Ltd for the task of designing and building our loft conversion and ground floor extension in Wimbledon. Our satisfaction with their service has been exceptional. Among the various quotes we obtained for the project, Home Shape stood out from the rest. Their quote was exceptionally comprehensive, providing us with a clear understanding of the cost. They work hard, on time, making sure every milestone is completed, any issue solved. We recommend their services.

We are a company that has been trading for the last six years in its current form. Before that I was a self employed builder for 25 years working on many projects ranging from new build, self build to small maintenance work . We now primarily do mid size extensions as well as new build, renovation and conversion. We also manufacture garden rooms and Glamping pods. We will Take a look at all jobs large or small. I am a time served bricklayer with city and guilds qualification and HNC. With an extensive knowledge all aspects of the building trade All our tradesmen are registered with the appropriate institutes and with certification. All work is guaranteed and fully insured.

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Reviewed by Viv on 3/11/2023

Very pleased with finished job. Subbies used were excellent. Highly recommended.

We're a team of fully qualified and fully insured builders with over 30 years experience. We cover all aspects from small jobs such as hanging doors, all the way up to complete new builds. We're based in Hayle but cover the whole of the south west. If your looking to have work done don't be afraid to get in touch.

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Reviewed by Paul on 10/11/2023

A good working relationship with your builder is essential and we definitely had that with Heyl Build. We agreed a price before the job started. Then we added to the job and each addition was quoted for so both parties knew where they were. The team worked hard through varying weather conditions and they were always polite. We are very happy with the end result and we would have no hesitation in recommending Heyl Build.

Hi My name is Conor and i am a member of the chartered institute of builders which is the highest accolade achievable within the industry, I also have an nvq 6 in construction which is the equivalent to a masters degree. We are a well established company since 1999 and have a vast experience in painting and decorating, kitchen fitting, bathroom fitting and building refurbishment, roofing, listed building refurbishment, reactive maintenance loft conversions and extensions. We guarantee you the utmost service as can be verified by our previous clients testimonials We offer a one point of call for all trades for domestic and commercial customers .We previously completed painting/decorating , kitchen fitting , bathroom fitting and refurbishment works to listed buildings, schools, Universities ,hotels, restaurants , pubs, Hospitals, shops, nursing homes along with many prestigious new builds, bcp contracts and private works. We provide a 1 point of contact, complete service with all our other trades if required. Resulting in the client only having to deal with one person, who project manages the team throughout the course of the works. We also provide a kitchen/bathroom fitting service ,and a reactive maintenance package for landlords and commercial customers and have a vast portfolio having completed over 500 projects.

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Reviewed by Dee on 7/2/2023

Responded very promptly to my ad and came within days to start the job. They had to order special materials, and Xmas and New Year intervened, but once the holiday was over, they were back at the task. The work was completed efficiently, competently and the price reasonable. They were all very polite and friendly, Conor organising and supervising it all very well.

MH Design And Build LTD was formed in 2013. Based in Rotherham, we service Doncaster, Sheffield and other South Yorkshire areas. Nothing is more important to us than our reputation which is why we are a reliable, friendly and customer-driver contractor. Our ethos is fantastic customer service, quality workmanship and highly-competitive rates. We have a number of extremely professional and skilled tradesmen that we employ. As a company we have a combined total of 30 years experience from loft conversions to extensions and new builds.

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Reviewed by Es on 15/5/2023

IBS SERVICES LTD it is a small family business that operates over 15 years, concentrating on quality and customer service with a friendly approach. We help our customers through all the job stages, from the design to the complete delivery of the task.

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Reviewed by David on 20/3/2024

We are a family run firm serving the UK dating back to 1864. We work extensively as both main contractors and sub-contractors on projects for English Heritage, Network rail, Care Home Providers, National Trust & Heritage Lottery Fund. We pride ourselves working to a high standard on projects wether it be private domestic properties, commercial or historic buildings. Natural slating. Stone slating. Tiling. Building refurbishment works. Building works. Electrical works. Plumbing works. Joinery works. Lead works. Hot Lime & Hydraulic Lime pointing. Single Ply welded flat roof systems. Modern & traditional plastering and rendering. Lime harling. Technical drawings. Project management. Scaffolding. Our men are extensively Health & Safety and First Aid certified with recent Covid 19 awareness training. Our vehicles and men are uniformed and we work cleanly, quietly and to a minimum disturbance. OUR OPERATIVES NOW HOLD COVID AWARENESS TRAINING CERTIFICATES.

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Reviewed by Kathryn on 5/4/2024

Professional and hard working. Loved the end product.

We are a fresh and dynamic company with 15+ years experience in construction and carpentry. We take great pride in all of our jobs big or small our quality of work is undeniable. With a friendly and reliable service we aim to please

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Reviewed by Christopher on 10/5/2023

Great team of lads nothing is too much of a problem kitchen extension and porch progressing well despite bad weather and supplier set backs will definitely use for other projects I need doing

I offer a full hard landscaping service; patios, paths, drive ways, fencing, tufting, bespoke timber structures, sleeper work and ponds. Specialising in low maintenance gardens. I can also do full garden clearance and other groundwork.

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Reviewed by Michael on 26/3/2024

Rod came round quickly to give us a quote- which was competitive and we chose him. He turnpike when promised and did an excellent job. He pointed out where some fireworks needed to be done and explained why. He finished the work on time and tidied up afterwards. We will use him again.

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Reviewed by Steven on 26/12/2023

Jamie did a great job with the door and it's made such a difference to the house.

We are a family run building company who have over 20 years experience in the construction of new build properties and spacious creative extensions. With the current economic climate we are focusing on extensions, renovation work, media walls, kitchens and bathrooms. We provide complete project management and have a team of qualified craftsman and experienced builders. All our work is fully guaranteed and certificated. We will be pleased to discuss your project with you and provide a free quotation.

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Reviewed by Mrs Lyn on 15/2/2024

R J Hunt have completely remodelled our bungalow and we couldn’t be more pleased with the excellent work they have carried out. They were able to interpret our sometimes vague wishes perfectly. They were punctual, very professional, polite,,considerate and always helpful. They tidied up their equipment in the bungalow and on the drive every night and we would have no hesitation in recommending them 100% to the extent that should we need further work done we would only use R J Hunt

At H&S construction LTD we are committed to providing excellent customer service from planning to completion. We take great pride in our customer service and the high quality of the workmanship on every aspect of the project. Keeping the client informed during the project is essential to ensure an effective and professional working relationship is maintained and will lead to a satisfactory completion for both parties. H&S can carry out every aspect of your building/refurbishment project and these include; Extensions Loft Conversions Refurbishments Kitchens Bathrooms Carpentry Bricklaying Landscaping Please feel free to call for a no obligation fully broken down quotation, no job too small

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Reviewed by Daniel on 4/4/2024

Did an excellent job! Communicated and discussed throughout, finished on time, and would highly recommend!

Trend Build Construction is a building company covering all aspects of construction and landscaping. With qualified and experienced builders, they pride themselves on offering professional services that are convenient to customers and price competitive.

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Reviewed by Vivian on 3/4/2024

Excellent job done, friendly people. They took my project like their's. No issues from start to finish. I highly recommend them. Thank you to Alan, TEodor and Daniel.

Hello we are a family buisness who have worked in the building trade for over 40 years. We do All types or building works from New builds to Extensions and Renovations and Commercial works aswell. Our previous Works are St Paul's & Barnabus Church in Belfast we carried out full Renovations works to the Building. We have just completed a massive Laboratory Extension for Valpar Micro Matic based in Bangor and also done Renovations works to Cartmills based in Glengormley which was turned into the Northern Ireland Hospice . We have completed many New builds and over 100 Extensions in the last 10 years and no job is to small or too big for MPR. We strive to leaving a quality job at a competitive price for all our customers.

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Reviewed by Gillian on 23/6/2023

Only at the foundation stage at present but very satisfied with the service so far.

Ceejay Home Improvements have over 40 years experience. We are a fensa registered company, and give all of our customers a 10 year insurance backed guarantee. We are trustworthy, reliable and we take pride in our work. Our quotes/prices are very reasonable and genuine. OUR NEW SHOWROOM IS NOW OPEN. You as a customer come first, as we are a family run business we deal with our customers how we would want to be dealt with. Ceejay do not force sell, as we do not have any salesmen on board, only fully qualified tradesmen.

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Reviewed by Mark on 21/3/2022

An excellent experience from start to finish. I'd much rather give business to smaller family-run companies like Ceejay. Great communication throughout the process. The whole window fitting took slightly less than 3 days. Connor and his colleague were friendly, polite, very meticulous in their work, and really good at tidying up at the end of the day. The new windows look simply superb, and have transformed our house. I would certainly use Ceejay again.

JTD Construction Limited: We do it for a better living. Welcome to JTD Construction Limited, where the experience of our employees with more than three decades in the construction industry across the UK, Central and Eastern Europe has put together a team whose aim is to deliver top quality services and high customer satisfaction. Our Expertise: Bricklaying and Blockwork: Our core expertise lies in high-quality bricklaying and blockwork, crafting structures that stand the test of time. Expanding Services: While we excel in our traditional construction services, we have broadened our horizons to include a variety of handyman jobs. Recent Specializations: Embracing the evolving needs of our clients, we have recently developed expertise in roof cleaning, gutter cleaning, window cleaning, and pressure washing, ensuring that we cater to all aspects of property maintenance and care. Our Commitment: At JTD Construction Limited, we are committed to delivering exceptional service and quality in every project. Our team of skilled professionals is dedicated to ensuring the highest standards of craftsmanship, whether in complex construction projects or meticulous cleaning tasks. Why Choose Us: Decades of Experience: Our long-standing presence in the industry is a testament to our reliability and expertise. Wide Range of Services: From construction to maintenance, we provide a comprehensive suite of services to meet all your property needs. Quality Assurance: We pride ourselves on the quality of our work, ensuring that every task, big or small, is executed with precision and care. Contact Us: Embark on your next construction or maintenance project with JTD Construction Limited, where experience meets excellence. Contact us today to discover how we can bring your vision to life with our unmatched expertise and service.

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Reviewed by Akhil on 16/4/2024

Petru did an excellent job fixing our Blink Floodlight/Camera, Ring Door Bell, Door Sign and Post Box. I was impressed with Petru's workmanship and professionalism. The job was done efficiently and to a very high standard. Petru was punctual, friendly and extremely diligent. I can honestly say that Petru has been the best tradesman I have ever hired to date. He exceeded all my expectations. I would highly recommend Petru for all your handyman jobs.

Us trades people pay for leads off here, so please don’t waste our time or money... We are a professional Groundworks and building contractor based in Halesfield Telford. I sub contract my own services to a major Civil Engineering contractor in the Midlands and I’m currently running a 163 house site. We also have a civil engineer available for those bigger job who uses the Leica Viva GS series All of my staff are CSCS and CPCS qualified. So whether it’s a small patio or a major landscaping job we have the right guys for the job. Our internal working guys and girls sub contract a lot of work for companies such as Avanti KB, B&Q and Leeks to name a few. We offer a first class service with workmanship to match.

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Reviewed by GILL on 23/11/2023

Dave is great came over and discussed in detail what I required prepared a detailed quote and timeline for the job . We have started the job and the communication level is above my expectation . Standard of work so far is brilliant . Team are lovely and everything is explained. I would highly recommend Dave at Hills construction. Nothing is to much bother for him .

Watertight home improvements Don't move-IMPROVE & ADD VALUE TO YOUR PROPERTY.We specialise in ALLroofing,all types of building &.DPC.work & uPVC roofline.Approved & certificated installers of EPDM Firestone RubberCover roof system.FULLY,INSURED 100 RADIUS

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Reviewed by wendy on 23/11/2022

Fantastic service. Honest and reliable. You get what you pay for. Workmen were lovely too. Definitely recommend this firm.

Roman home improvements is a company who pride them selves on high quality workmanship at affordable prices. We have over 20 years experience and cover all aspects of construction. We are here to not only build for your needs but with our experience and knowledge to help design for your needs.

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Reviewed by Karl on 1/1/2024

Great work by Karl and the team, lots of extras thrown into my request last minute which Karl was able to factor in without issue. Quality of work was great, and all within time. Very punctual and communication was constant. Only downside was tidiness, unfortunately due to plastering works, flooring was damaged but Karl acknowledged this straight away and offered multiple options to resolve which we agreed very quickly. Would 100% recommend and will be my first port of call for any future works.

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