Local house extension experts
Over 10,000 rated tradespeople
are ready to help you get your job done
Over 3 million happy homeowners
have found a quality tradesperson
Over 1 million ratings
with 88,000 5* ratings in the last 12 months
Join our group of happy customers
Thousands of 5 star reviews
Read real reviews from customers about their service experiences.
Craig got in touch quickly, gave me a rough estimate over the phone and answered all my questions. Surveyor arrived on time, gave instant quote. Price was good. Michael and (another) Craig turned up to do the job on the day, time given. Good, tidy job. Can't fault anything, from start to finish!! Would recommend!
Mary
George and his team are experienced builders, replaced my front door with a custom frame/sidelights and raising the floor level in the hallway quite quickly - in fact, they were the only who came next day, gave a quote straightaway and were ready to start in just couple of days. They also had all the necessary tools and materials, were ready to buy something additional quickly on the day - if further adjustments were required to fit everything as I asked. Thanks a lot for your help, guys!
Dmitry
Highly recommend. These guys did a fantastic job of constructing our pergola and decking. Very hardworking and reliable. The job was completed in the time frame agreed and to a very high standard. We would 100% use them again.
Holly
At Rated People, we understand how daunting it can be to invite a stranger into your home for a major project like a house extension. That’s why we connect you with trusted local house extension experts who have been thoroughly vetted and reviewed by other homeowners. With over 10,000 skilled tradespeople on our platform and more than 3 million satisfied customers, you can count on us to find the right professional for your house extension needs.
We know that large projects can be overwhelming, so we provide extra support to help you find all the right tradespeople to ensure the job gets done right. You can check previous reviews to see the quality of work our tradespeople deliver, giving you peace of mind before you start. If you need more information, read through our helpful guide below. And if you are a house extension expert, click on the link below to sign up with Rated People.
Browse House Extension specialists
Take a look at our House Extension specialists profiles, read reviews and request quotes directly.
Local house extension experts
What is a house extension?
A house extension is a significant home improvement project that involves adding extra space to your existing property. This can be achieved by extending the structure outwards or upwards, creating additional rooms or expanding existing ones. House extensions can range from small single-room additions to large multi-room projects that completely transform the layout and functionality of your home. Common types of extensions include:
- Single-Storey Extensions: Ideal for expanding living areas such as kitchens, dining rooms, or living rooms.
- Double-Storey Extensions: Add multiple rooms and increase overall living space without sacrificing garden area.
- Loft Conversions: Make the most of unused attic space to create extra bedrooms, offices, or playrooms.
- Basement Conversions: Convert existing basements into habitable spaces for entertainment, storage, or additional bedrooms.
- Garage Conversions: Transform your garage into a functional living space, such as a guest room, home office, or gym.
Cost of a house extension
The cost of a house extension varies widely based on several factors, including the size and type of extension, the materials used, and the complexity of the project. Here are some general cost estimates to help you plan your budget:
Factors Influencing Costs
- Size of the Extension: Larger extensions require more materials and labour, increasing the overall cost.
- Type of Extension: Different types of extensions (single-storey, double-storey, loft conversion) have different cost implications.
- Materials Used: The choice of materials for walls, flooring, roofing, and finishes can significantly impact the cost.
- Location: Costs can vary based on your location, with projects in urban areas typically costing more due to higher labour rates and material costs.
- Complexity: The complexity of the design and any structural changes required can increase costs. Unique architectural features, custom fittings, and intricate designs will add to the overall expense.
Average Cost Estimates
- Single-Storey Extension: £1,200 to £1,800 per square metre.
- Double-Storey Extension: £1,500 to £2,500 per square metre.
- Loft Conversion: £1,000 to £2,500 per square metre.
- Basement Conversion: £2,000 to £3,000 per square metre.
- Garage Conversion: £5,000 to £20,000, depending on size and specifications.
These estimates include basic construction costs but may not cover additional expenses such as planning permission, architectural fees, and interior finishes.
What kinds of tradespeople do I need for a home extension?
A successful house extension project requires the expertise of various tradespeople. Here are the key professionals you will likely need:
- Architects and Designers: To create the plans and designs for your extension, ensuring it meets your needs and complies with local regulations.
- Builders: To handle the construction work, including laying foundations, building walls, and roofing.
- Electricians: For all electrical installations, including wiring, lighting, and power outlets.
- Plumbers: To install and connect plumbing systems for kitchens, bathrooms, and any other water-related needs.
- Carpenters: For structural woodwork, custom fittings, and cabinetry.
- Plasterers: To finish walls and ceilings, ensuring a smooth, professional look.
- Painters and Decorators: To add the finishing touches, making your new space aesthetically pleasing.
- Flooring Fitters: To install flooring that complements the rest of your home.
- Roofers: If your extension involves roof alterations or new roofing.
- Surveyors: To assess the site, check the structural integrity, and ensure the project meets all building regulations.
Other house extension FAQs
Do I Need Planning Permission to Extend My House?
In many cases, house extensions require planning permission from your local council. However, some extensions may fall under Permitted Development Rights, which allow for certain types of extensions without the need for formal permission. It’s essential to check with your local planning authority to determine the requirements for your project.
Will an Extension Add a Lot of Value to My Home?
A well-designed and executed extension can significantly increase the value of your home. Extensions that add additional bedrooms, bathrooms, or improve the overall functionality and aesthetics of the property tend to offer the highest return on investment.
How Long Does an Extension Take?
The duration of a house extension project depends on the size and complexity of the work. On average, a single-storey extension might take around 3 to 6 months to complete, while more extensive projects, such as double-storey extensions or loft conversions, can take 6 to 12 months or longer. This timeline includes planning, design, construction, and finishing phases
Sign up as a home extension expert
Sign up with Rated People to connect with high-quality homeowners looking for house extension builders. We do the legwork by providing you with leads, so you only need to quote for jobs that match your skills. With tens of thousands of ads posted every month, there’s always a demand for your services. Plus, with larger jobs like a house extension, we take the time to confirm homeowner budgets and timelines, ensuring your time isn’t wasted. Join today to grow your business with Rated People.
We are a long established company and pride ourselves on job satisfaction, we can also provide references from previous customers and also photographs of previous work all are work is fully guaranteed
James did a fantastic job. He refitted an existing bathroom and created two new ensuites, and also built wardrobes and panelling in our hallway. He is reliable, trustworthy, friendly and his work is of great quality. I fully endorse and recommend him- he turns up as expected every day, communicates well and delivers brilliantly. We are quite happy for anyone to come and see his work .
General construction, refurbishment .......
Alex has completely refurbished my bathroom and i am thrilled with the result. Alex is very skilled and his work is excellent. He takes pride in what he does, and his attention to, and the care he takes with the smallest details, are not seen so often these days. Alex is obliging and helpfull with advice, and will consult his customer on details. He gets on with the job and does not mind staying late until he's finished what he is doing and cleans up before he leaves. He is a very pleasant man.
Berkshire Building & Construction
House Extension
We offer only the best in workmanship. Punctual, honest and are here to work with you to achieve your goal however large or small on your property. Our work is never sub-contracted out and all work is done by or with us or our team. We have an excellent team that can excel in any given project. We have access to the best plumbers, electricians, plasterer’s, ground workers, brick layers and decorators. James’s background and passion is carpentry with level 3 city and guilds carpentry qualification 20years personal experience in construction and also 4th generation carpenter but through the many many years in the industry have learnt new skills and branched into other trades along the way. Thus being able to take care of everything in a property from the roof down to the oak flooring and everything in between. Ryan’s expertise is brickwork, ground work, patios, block paving, drainage etc. Ryan has over 20 years experience in the construction industry specialising in all forms of brick work on site and also on extension and new building homes for clients. All work is carried out to the highest specification while being competitively priced. All trades that are under our umbrella are all qualified and have all the correct tickets and certificates in their specific field. We pride ourselves in the work we do but we also take great pride in our communication with our clients. Keeping good lines of communication throughout the process. Giving you peace of mind and keeping everything transparent as your vision is our goal Our list of works that can be undertaken by ourselves Conversions Extensions New build Out houses Loft conversions Steel fitting All roofing work All 1st carpentry All 2nd fix carpentry Stairs Kitchens Bathrooms Flooring Electrics Plumbing Gas engineering Brickwork/Blockwork Plastering Garden walls Retaining walls Painting and decorating Block paving and driveways Decking and fencing Fibreglass roofing We look forward to meeting you and leave you feeling once we have finished the job that you were glad you chose us
Bright life? We are a fensa registered company and have been providing the best services to Buckinghamshire and surrounding areas since 2009. Suppling and installing A* rated double glazing at unbeatable prices, superior quality and exceptional customer service are guaranteed when you work with us! We also offer a 10 year warranty on all our product! Supply and install - - windows -doors -conservatories - warm roofs ( guardian roofs)
Henry was brilliant and put new double-glazing throughout the house. Very efficient and tidied up nicely after the job. Definitely recommend !
I am Adam Martelette. Founder and Manager for a our small family business Martelette&sons, based in The city of Cardiff. Having the highest certification possible to obtain in Great Britain, we utilise these skills along with our shared 20+ years experience to provide high quality work at low affordable prices. We specialise in all Aspects of Carpentry and Fencing, but also work along side other trades such as scaffolding, plastering etc. So orchestrating jobs that require multiple different types of work can be tackled with ease. Feel free to give the team a call / message for a free scheduled quotation.
Hi my name is Oliver Kent. I am a fully qualified carpenter with 10 years of experience and I am also a property developer. I cover all aspects of building work Kitchens Bathrooms Refurbishments Extensions Maintenance I have a small team of experienced professionals who are extremely confident in their job and I'm aiming to expand my business, so no job is too big or too small. I aim to please all customers, please check my ratings and also ask for pictures of work if you require them, as the website will not show all of them. or vist My Facebook page Good With Wood . Thanks
M Wraight Electrical Services undertakes work in the domestic, commercial and industrial sectors. No job is too big or small.
Excellent service and great job would recommend highly
JN PRO BUILD LTD
House Extension
We are small independent building firm who work to extremely high standards, Over the many years we have undertaken 1000s of full building conversions, Inc bathrooms,kitchen, load bearing walls, studwork, first and second fix joinery, first and second fix plumbing. We our fully qualified and work to the very highest standards I
My name is Mentor, I have more than 10 year’s experience in construction especially Landscaping, decorating, extension and loft conversions! I pride myself being able to complete the jobs in attention to detail and leaving happy customers! For over 10 years been getting work mostly as a recommended trader, looking forward to extending the business and helping new customers to build their homes & gardens ,to help converting your ideas and visions in reality!
Really quick response and work completed really well. Would certainly use again, recommended. Very nice guy also.
Jd projects have been going 28 years in the construction industry,we are a family run business operating from ruislip covering greater London and beyond. We specialise in all thing building from bathrooms to lofts fencing tiling and more. We would love to hear from you either it be a small job or large project expect a friendly timely quote. John Jdprojects
27 years experience a company you can trust,leave nothing to detail.
Steve replaced our guttering, downpipes and a bargeboard. It wasn’t a straightforward task as it’s an old property but he did an excellent job and carried out the work quickly and efficiently at a competitive price. I would highly recommend him.
'%3e%3cpath%20fill-rule='evenodd'%20clip-rule='evenodd'%20d='M12.5%2020.392a1%201%200%2001-.54.888l-5.274%202.73a1%201%200%2001-1.435-1.109l1.494-6.588a1%201%200%2000-.306-.964l-4.723-4.254c-.65-.586-.287-1.666.585-1.74l6.105-.514a1%201%200%2000.846-.629L12.5%200v20.392z'%20fill='%23F7DB34'%20/%3e%3c/g%3e%3c/svg%3e){kind=small}
Over 30 years trade experience
Great work, came when he said he would and did a great job. thoroughly recommend.
Hi my name is Craig Nicol, I have been a builder for over 30 years working on sites, offices, shops, hospitals, schools, private homes and also worked for councils. I am a hard worker and take pride in an excellent job finish.
Excellent work. Had no problems very satisfied with work, exactly what I wanted. Very helpful in making right choice. Helping with kitchen next.
Product Plumbing&Heating
House Extension
I have been a professional painter and decorator for over 20 years I have completed many commercial and domestic projects over the years all over the United Kingdom and abroad. I also install new kitchens , into domestic or commercial properties. Carpentry, plastering and flooring is also a specialty. No job is ever to small or to far. Satisfaction is Refit Interiors motto.
Stephen is the epitome of a craftsman, he works meticulously and efficiently. He single handedly painted the entire inside of our 3 bedroom house in a week. His work was clean precise and efficient. I would gladly recommend him to everyone I know.
Bob Construction Ltd was established in 2007 and has gone to a limited company in 2016. We provide Bristol's home-owners and landlords with professional and affordable property maintenance services in Bristol and surrounding areas.
Very happy with work. Arrived promptly and were very happy to take on additional small tasks as requested on the day. Would definitely recommend for further work.
Dear Customers IE-DESIGN with years of experience offers interior and exterior work such as painting and decorating.We also undertake and manage landscaping and gardening services of any kind. Additionally our experience leads to the unique 3D projects if required. We can promise a competitive price and perfect finish as Customer satisfaction is at the heart of everything we do.
Fabric Construction LTD
House Extension
Welcome to Fabric Construction Ltd, With over 2 decades of experience in the construction sector we are your first choice for all your construction needs. We undertake full extensions, maintenance and all minor works. We specialise in period properties, under taking all specialist works involved with these types of properties. We carry out works involving: Lime works Cast iron Roofing Carpentry and specialist oak repairs All general building works and project management
Kassel LTD
House Extension
Introducing Kassel Ltd to Cambridgeshire, bringing over 25 years experience from across Europe for all of your home services including; home cleaning, maintenance, repairs, improvements, removals and more!
i have 35 years ,working in construction industry, multi trader plumbing wood work fenching all maintenance Work now because work alone now am reliable and do a very good quality of workmanship we cover most trades in construction industry very competitive rates, welder insulation, richard
'%20rx='20'%20/%3e%3cg%20fill='%23FFF'%3e%3cpath%20d='M29.376%2016.914c-.555%200-1.006.454-1.006%201.013v37.416c0%20.578.472%201.014%201.097%201.014h34.109a1.007%201.007%200%200%200%20.972-.83%201.012%201.012%200%200%200-.161-.76l-6.446-9.416c-.375-.548-.567-1.085-.586-1.642-.034-.977.516-1.952%201.402-2.483%204.8-2.878%205.808-7.575%205.808-11.009%200-7.335-5.925-13.303-13.207-13.303H29.376ZM63.594%2059.75H29.467c-2.505%200-4.467-1.936-4.467-4.408V17.927c0-2.43%201.963-4.408%204.376-4.408h21.982c9.14%200%2016.577%207.49%2016.577%2016.698%200%205.879-2.46%2010.687-6.944%2013.607l6.17%209.017c1.37%202.002.868%204.752-1.12%206.132a4.336%204.336%200%200%201-2.44.778h-.007Z'%20/%3e%3cpath%20d='M38.767%2027.797c0-.749.603-1.357%201.347-1.357h6.427c3.979%200%206.426%201.72%206.426%205.099v.123c0%203.132-2.325%205.098-6.365%205.098h-3.848l-3.985%203.998V36.76h-.002v-8.963'%20/%3e%3c/g%3e%3cpath%20fill='%23FFF'%20fill-rule='nonzero'%20d='M18.176%2069.2h2.156v3.878h3.976V69.2h2.156V79h-2.156v-3.934h-3.976V79h-2.156v-9.8Zm16.428%207.98c.43%200%20.826-.08%201.19-.238a2.72%202.72%200%200%200%20.931-.658c.257-.28.457-.604.602-.973a3.21%203.21%200%200%200%20.217-1.183V74.1c0-.42-.072-.817-.217-1.19-.145-.373-.35-.7-.616-.98a2.96%202.96%200%200%200-.945-.665%202.873%202.873%200%200%200-1.19-.245c-.439%200-.838.08-1.197.238-.36.159-.667.378-.924.658s-.457.604-.602.973a3.21%203.21%200%200%200-.217%201.183v.028c0%20.42.072.817.217%201.19a2.959%202.959%200%200%200%201.554%201.645c.36.163.758.245%201.197.245Zm-.028%201.988a5.343%205.343%200%200%201-2.086-.399%205.187%205.187%200%200%201-1.645-1.078%204.823%204.823%200%200%201-1.078-1.596%205.029%205.029%200%200%201-.385-1.967V74.1c0-.7.13-1.356.392-1.967a5.075%205.075%200%200%201%201.085-1.61%205.05%205.05%200%200%201%201.652-1.092%205.395%205.395%200%200%201%202.093-.399c.756%200%201.451.133%202.086.399a5.187%205.187%200%200%201%201.645%201.078c.462.453.821.985%201.078%201.596.257.611.385%201.267.385%201.967v.028c0%20.7-.13%201.356-.392%201.967a5.075%205.075%200%200%201-1.085%201.61%205.05%205.05%200%200%201-1.652%201.092%205.395%205.395%200%200%201-2.093.399Zm8.14-9.968h2.324l2.576%204.144%202.576-4.144h2.324V79h-2.142v-6.398l-2.758%204.186h-.056l-2.73-4.144V79h-2.114v-9.8Zm13.152%200h7.392v1.918h-5.25v1.988h4.62v1.918h-4.62v2.058h5.32V79h-7.462v-9.8Zm13.866%209.94a6.49%206.49%200%200%201-2.198-.385%205.817%205.817%200%200%201-1.96-1.183l1.274-1.526c.448.364.908.653%201.379.868.471.215.987.322%201.547.322.448%200%20.796-.082%201.043-.245a.771.771%200%200%200%20.371-.679v-.028a.85.85%200%200%200-.077-.371.778.778%200%200%200-.294-.301%203.079%203.079%200%200%200-.602-.28c-.257-.093-.59-.191-1.001-.294a12.201%2012.201%200%200%201-1.344-.406%203.787%203.787%200%200%201-1.022-.553%202.237%202.237%200%200%201-.651-.819c-.154-.327-.231-.733-.231-1.218v-.028c0-.448.084-.852.252-1.211.168-.36.404-.67.707-.931a3.183%203.183%200%200%201%201.085-.602c.42-.14.882-.21%201.386-.21a5.86%205.86%200%200%201%201.981.322%205.743%205.743%200%200%201%201.659.924l-1.12%201.624a7.1%207.1%200%200%200-1.288-.707%203.292%203.292%200%200%200-1.26-.259c-.42%200-.735.082-.945.245-.21.163-.315.366-.315.609v.028c0%20.159.03.296.091.413.06.117.17.222.329.315s.376.182.651.266c.275.084.623.182%201.043.294.495.13.936.278%201.323.441.387.163.714.36.98.588.266.229.467.497.602.805.135.308.203.677.203%201.106v.028c0%20.485-.089.917-.266%201.295a2.66%202.66%200%200%201-.742.952%203.353%203.353%200%200%201-1.134.588%204.924%204.924%200%200%201-1.456.203Z'%20/%3e%3c/g%3e%3c/svg%3e)
Get our app for homeowners
- Send messages and get notifications from tradespeople
- Add photos to get more accurate quotes
- View tradespeople's profiles