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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.
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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
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Tekton Build LTD
House Extension
We are a well established Building company with over 20 years experience in the building trade. We build everything from New Homes, extensions, alterations and renovations.
KOALA BUILDING SERVICES LTD
House Extension
Family based company. Main area of work: Patios Driveways Extensions
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Quality Roofing is a Milton Keynes based roofing company services a 10 mile radius of Milton Keynes, the owner Kyle has 20 year experience in all areas of roofing along with a team with experience in all trades. We provide free advise, home visits and quotes. We value transparency, reliability and a professional service. Services we provide are: New roof installation Reroofing Flat roofing Fascia/soffit and guttering Chimney repairs Leadwork Fiber cement cladding Emergency repairs
Excellent service. Very quick responses and completed the work as discussed. 0 complaints great work. Highly recommend.
LBD Kitchens
House Extension
Haywood Developments - Working with our customers to provide a fully project managed Extensions, Garage Conversions and home renovations. Providing excellent customer service and workmanship at a competitive price.
K&H CONSTRUCTION SERVICES
House Extension
K&H Construction Services is a professional building company based in Guildford Surrey and the surrounding areas. From installing a new driveway to building your dream home, we can provide you with the help and advice you will need on helping you meet your expectations. We have an excellent reputation for our quality of work, which can be seen right here on our online home. K&H Construction Services can undertake a wide array of projects, no matter how big or small they may be. K&H Construction Services ensure that every project is finished to the highest of standards and more importantly - on time. We respect your property and and will ensure cleanliness at all times - we treat your home as we would our own. So whether you are looking for a small repair to your roof or you need to turn that wasted space into something habitable, look no further - contact K&H Construction Services today.
Illustrious Interiors Ltd (formerly known as Jack\\\\'s Interiors) is a London-based company that specializes in painting/decorating and property renovation services. We are based in Golders Green, London. Interior and exterior renovation services: �\\\\tPainting and decorating �\\\\tHouse and flat renovation �\\\\tBathroom fitting �\\\\tKitchen fitting �\\\\tProperty remodelling �\\\\tLoft conversions and extensions �\\\\tBespoke carpentry works We are Which? Trusted Trader! We have received positive feedback from numerous clients, with a 10/10 rating on Checkatrade, 5/5 rating on Rated People and 5/5 rating on My Builder. Our clients highlight the team\\\\'s punctuality, tidiness, and clear communication throughout the project. Jack (the owner) and his team are noted for their attention to detail, helpful suggestions, problem-solving skills, and ability to manage projects efficiently, even when unexpected issues arise. You can find more information about our projects and services on the website and Instagram @illustrious.interiors
Jack and his team did an excellent job. Their work was high quality, they were very professional and always clean and tidy. I'll look forward to using them again.
We are a small team based in Ross on Wye. We undertake all aspects of Bathroom Fitting , Plumbing and Heating , Electrical installations , Tiling and general property maintenance. We are City and Guilds accredited and work to the highest standard.
Excellent service and communication. Karl managed to fix a leak that other plumbers had failed to after several attempts. Tiling looks superb too. Thanks very much. Highly recommended
GW Glass Here at GW Glass, we supply and install all windows and bifold doors and all types of units, we can help you make your home more luxury living. We do all types of maintenance on windows and doors. - broken down units -broken hinges -broken mechanism's - all types of single glazing GW Glass also designs and installs a wide range of glazing solutions to domestic and commercial clients across London, Essex and Hertfordshire. We are highly skilled and knowledgeable with the installation of affordable, quality windows and doors. Over 15 years experience, you are in safe hands.
WK CONTRACTORS Limited BATHROOMS – full project management of complete bathroom, shower room and wet room refurbishments including electrics and tiling. KITCHENS - full project management of complete kitchen installations including electrics, gas and tiling. KITCHEN/DINER – knock through to create a new space? We offer full project management of your job including wall removal, steel support if needed and full installation. FITTING ONLY or FULL SUPPLY & FIT SERVICE – whichever you prefer, we will project manage your entire job.
we are now trading as powells construction
We are really happy with the work, I would recommend Castle Construction to anyone.. Fantastic quality, reliable and a friendly bunch of lads, we agreed a price a start date and it was all delivered to what we agreed. Thanks again, I am sure we will use them again.
Roofing , Cladding and Building LTD company. industrial , commercial, retail , private and agricultural . Building and renovation works. House renovations and remedial works. ASBESTOS REMOVALS AND OVERSKIN SPECIALISTS. flat roofing and tin sheeting. single ply and pvc rubber roofing. cladding ,rainwater pipes, and gutters. gutter clearance and blocked downpipes. GRP AND FELT ROOFING TOP SEAL APPROVED INSTALLERS Window and door sealing works, and re-sealing works. Machine operators and drivers. insulation works , internal and external. steelwork and metsec framing. maintenance and remedials Building works. All high level works and signage fitting. House clearances and removals. SOFFITS AND CANOPIES erected and dismantled . Full shed and garage demolition and removal works. Try us for a price , we won't be beaten. We cover all jobs nationwide. We provide scaffold and netting when needed and all work is guaranteed.
Excellent service, loaded job late last night and job is already complete above and beyond our expectations. Thank you so much, Luke�s has been very professional, communication has been second to none updating us throughout. The overall service has been outstanding would highly recommend.
About us: PPM BUILDERS NORTHAMPTON LTD is a building firm based in Northampton covering all aspects of building work. We offer a wide range of services employing both modern and traditional techniques in order to guarantee complete customer satisfaction. We have a full team of qualified regular sub-contractors who have been a part of PPM for many years, a number of whom were trained by Matthew - the director. We undertake work from small remedial alterations and maintenance up to complete refurbishments and renovations. Why choose us? 1. Honest & affordable prices - over the years, we have developed new techniques, knowledge and contacts which is the reason we are able to offer unbeatable prices for the standard of work that we consistently achieve. We are good at sourcing high quality materials and appliances for our customers which allows us to offer an even better price. 2. Professional and high standard work - PPM uses the highest quality of materials on every job and all work is carried out to the highest possible standard. 3. Unparalleled customer service - we provide full assistance and honesty from start to finish. We do not regard the job as complete until our customer is 100% satisfied. We believe communication is very important; we always keep our customers informed. Choose PPM for a stress free experience! 4. Fully trained & experienced - PPM has 15+ years of experience. All of our sub-contractors are very professional with years of experience. PPM have the best of the best tradesman. 5. Tidiness - one of the many positive comments we get when carrying out work is our tidiness. We ensure all jobs are only complete once the place is spotless! 6. Fully insured & guaranteed - public liability insurance held up to 1 million pound. All work is fully guaranteed; Roofing: 25 years; Rendering: 15 years; All other work is guaranteed for 1 year.
Matt and his team were great. The job was a complete redesign of our garden and the work was completed on time and within budget. Special thanks to Chris, Ross and Jamie who worked like Trojans and only needed a regular supply of strong tea to keep them going! Very pleased with the results and would have no hesitation in recommending PPM for your hard landscaping project.
hi, we are a small company with a group of skill in these areas carpenter, bricklayer, painter, handy man, etc. frist priority is customer
Bogdan did a great job on a quick garden clearance. Friendly service and kept in contact throughout. Thank you!
Experienced builder based in Tooting. Expert in structural work, layout changes, concrete foundations, steel structures, and main carpentry to bring your project to life. Dedicated to delivering solid, reliable craftsmanship on every job.
Professional job at a fair price
Hi we are fully qualified bricklayers General builders. That take great pride in all are work no Matter the size With over 20 years experience
Thank you to Aaron and his team. Great response time, price and communication. They worked hard to get our patio laid quickly and as we wanted. They were also very quick to come back and tidy a couple of loose ends when I asked, which I suspect had something to do with the poor weather.
Welcome to A.K. carpentry & build established local business with Precision, passion, and sawdust. Your go-to for fine carpentry. Got an idea? Let’s make it real. Measure twice, cut once.
Quick&Easy Developments Ltd is a leading property development firm, dedicated to delivering streamlined, high-quality solutions for residential, commercial, and mixed-use projects. Known for our efficiency and cost-effectiveness, we focus on meeting modern client needs with innovative designs and sustainable practices. Our team is committed to transparency, speed, and exceptional service, ensuring that every project is completed on time, within budget, and to the highest standards. At Quick&Easy Developments, we simplify the complexities of property development to create spaces that inspire. We believe preparation is everything , We are friendly and hardworking Team that works to a high Quality and Standard. Services -Extension -New Build -Loft Conversion -Paving & Slabs For driveway and Garden -Paint and decoration -Home Improvements -interior and exterior painting -Door Stripping -wooden Windows Stripped &painted -Anti Vandal Coating -Wall Murals -Property Maintenance -property Repair -Install Plasterboard -Easy Filler Plastering French Style . -Multi Finish Plastering -Rendering
I am Artur Yusupov. Do business in London for 20 years. Main trade kitchen and bathroom feater. Lot of builders on the market but not all trust full,so the reason why customer need to give me a preference because im the one who you can trust, the one who you can rely on and never let you down. Many thanks.
The service was excellent. Artur came the day after I posted the job (the Friday), and true to his word, he and his team started the job on the Monday. The work was of excellent quality. They worked very cleanly, even going beyond the point of duty, moving articles out of the way. The work was completed within a week as promised and was of exceptional quality. I would not hesitate to recommend to anyone for painting, decorating and building work. Well done.
MOST RELIABLE! SANDAROV LTD we know good work needs a great team. That's why when it comes to working with our customers for building and property maintenance we go above and beyond - doing all that's required to complete work to a high standard every time. With over 15 years of experience in the building industry, our reputation precedes us; thanks to our excellent attention to detail, competitive prices and long-term customer relationships. So, why should you choose SANDAROV for your next project? When it comes to delivering excellent quality work, you can rely on us. We're experts in our field, providing our clients with world-class work on anything from large-scale commercial construction to residential repairs. We pride ourselves on offering a dynamic, professional experience from the start to the finish of every project we undertake. With our professional experience and the pride we take in our work, no challenge is too large or too small for our talented team. Whatever your needs, let us know - and we can transform your plans and ideas into reality. With fast response times, bespoke design service and a two-year guarantee of all our work, you're putting your property in the safe hands. Got a fast turnaround on your next project? We offer fixed-price quotes and excellent timescales for a whole range of different construction and maintenance services, allowing you to get the work done when you need it done. Whether you're considering building from scratch, you're simply looking for a professional plumbing service, or you need some tiling done, we've got it covered. Our team of industry experts are equipped to complete the construction and maintenance work you need. From boiler installation to painting, carpentry to loft conversions; we're the ones you want to call. Thanks to our complete coverage for both employer and public liability insurance, we're a business you can trust to make those big changes. Our versatile team can do it all, whether it's providing maintenance to your existing property or transforming your kitchen or bathroom. We do it all, from full-house refurbishments to individual plumbing jobs. Whatever your problem, we're the service you can call and rely on. Do we sound like the perfect fit for your next project? Contact us today to find out more about our services, and what we can do for you. We're ready and waiting for your call, and we'll even provide you with a full reference list of our last projects for added peace of mind.
Anton did a great emergency call out job on some pipe work. I called him on Monday late afternoon, and he was able to come and see the work that needed to be done within the hour, he was then able to start work the following day, working around the roofers we had on site too. As I wasnt onsite when he did the inspection he sent me a video of the work that he was going to do, which was great! I would definitely recommend him, and will be getting a quote for some other jobs that need doing. Thanks Anton
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