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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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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
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We are a local building company, experts in extensions and refurbishment with over 30 years experience. We have fully qualified tradesmen and public liability insurance. References available, no upfront fees and honest advice. Our latest project involved raising the roof level of a bungalow, extension and complete internal alterations. Before and after pictures below.
Wow, that was a long time ago and I forgot to leave a review! All I can now confirm is that the job was completed and to my complete satisfaction.
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Welcome! We love gardens and the beauty they bring to your surroundings, however, gardens require work which we understand you may not have the time to invest. This is where we can help. Our family run business offers reliable, friendly and affordable garden services which will make the most of your garden and outdoor space. We carry out the work enabling you to simply enjoy the pleasure of a well maintained garden. What we offer Whether your garden is small or large, simply needs mowing or a complete overhaul, we can assist to ensure you get the most from your garden. Here are just some of the services we offer: Clearing overgrown gardens, tidying, managing shrubs One off garden clearance Regular maintenance Lawn care Flowerbeds, Containers & Baskets Hedge Care Decorative Coverings Wood protection Fencing Patio & Drive Maintenance Overall care for your garden including planting, pruning, weeding and mowing Regular mowing, aerating, feeding and scarifying to maintain and improve your lawn Creating raised beds, digging new borders and care for existing flowerbeds including planting, weeding and pruning Trimming, reducing or planting new hedges We can provide and install gravel, slate, bark or pebble to compliment or transform the look of your garden Care for fencing, decking, sheds and other wooden garden features to enhance their look and provide weather protection We repair and install new fences, or can simply replace panels or posts to your requirements Pressure washing and weeding to maintain a quality appearance
Good communication, reasonable prices...quoted and work completed within a week...would definitely use Adam again and recommend to friends/family
Room Builder
House Extension
Room Builder has over 40 years of experience in providing Windows, Doors, Conservatories, Orangeries and Extensions, All our work is carried out to a high specification, with Johns knowledge and experience he can design and advise to deliver exceptional results for your home and life style.
KCR LOFT CONVERSIONS LTD
House Extension
We are a carpentry based company providing high quality loft conversions in the Northants, Bedfordshire, Buckinghamshire and Leicestershire areas for the last 2 years before that we are carpenters in the construction industry for 18 years please contact us for competitive pricing and high quality work with our architectural partners we can help from conception to completion and negotiate the planning side and building regulations that can be required. Did you know that most lofts can be converted as long as you have 2.3m from ceiling to top of ridge and you no longer require full planning most can be done through permitted development but we recommend that all clients obtain a certificate of lawfulness with there build it’s just better practice of you come to sell your property later on
We have 15 years of experience within the industry. We offer a wide range of services: Laminate Flooring Floor Tiling Door / Window painting External wall painting Internal Painting & Decorating Wall murals / Paint effects Wall Tiling We work hard and clean and make sure that our clients are happy.
Alin and the team did a great job! They put in a lot of hard work and managed to get everything done in a timely manner; building a new wall & pocket door system, laying flooring and decorating. They were polite and communicative throughout and finished things to a good standard. Alin kept me informed of additional material costs & pointed things out that might need my attention later. I would recommend and would use them again.
I am a general builder that has many skills, I have built extentions, fitted kitchens and bathrooms, removed and rebuilt interior walls, fitted windows and doors. I also have done all specialist types of external rendering, I also tile walls and floors not only with your everyday tiles but I also do natural products such as stone. I laid patios, turf and general gardening,
Chris did a great job of tiling and I wouldn’t hesitate to ask him to do another job for us.
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.
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
family run business with over 20 years in the roofing industry we can meet all of your roofing needs from flat roofs fibreglass felt or rubber we do small single slate and tile repairs to whole new roofs all UPVC products dry verge systems dry ridge systems all types of guttering basically anything to do with your roof chimney repairs to lead work we do it all hard and soft Brick layer re-pointing /
I call Phill and sons 3 days ago to fix a leak on my roof. I did have the valley fix by an other roofer but they did not do anything just to take my money. I was a bit suspicious but I was happily surprise when I call Phill who repond to my call very quicly. He is very friendly and most of all very professional. So so please with Phill I'll will recommand him anytime.Thank you Phill for your excellent job
We have been working at this trade for over 15 years. My company and works people hold a number of different NVQ qualifications such as electrical, engineering, railway engineer, civil engineering. We take customer service very seriously and we ensure to reply as soon as possible when someone contacts us. We also ensure we give a fair deal for a great service in return.
Mr Mema is a very pleasant, patient and polite worker who worked through bad weather and did a beautiful job building my garden pathway and walls which is admired by my neighbours. I will certainly use him again.
We don't say we are the best our customers do. If you need reliable roofing team to get your job sorted we are the people for the job over 20 years experience in roofing and light building don't delay call today and we will be happy help
Quick response and services
I am an interior designer/carpenter and loft conversion specialist with over fifteen years experience in Switzerland and London. I offer free quote and advice.
At LM uk number one ltd, we are dedicated to transforming your space with top-quality craftsmanship and attention to detail. Based in London, our experienced team specializes in comprehensive refurbishment projects, including electrical work, plumbing, joinery, and painting. We pride ourselves on delivering elegant, sophisticated results that exceed our clients' expectations. Whether you're looking to update a single room or undertake a full property renovation, we bring expertise, reliability, and a commitment to excellence to every project. Trust LM uk number one to turn your vision into reality.
Good understanding of the work. The tiler was excellent. Highly recommend
Firstly welcome to Kings roofing! www.kings-roofing.co.uk Here at kings we pride ourselves on being a cut above by providing highly skilled work with a flawless finish , combined with great customer service throughout the process of any job no matter how big or small. We cover all aspects of roofing , whether it is re-roofs , flat roofs , gutters / fascia’s or soffits or just your general repair. We treat each individual job with ultimate care and attention , the roof is the most important part of any property and we take this seriously. Thank you for taking the time to check us out and we look forward to working with you! - Kings Roofing
Carswells construction has been established for a number of years and during that period of time we have built our business on reputation, word of mouth and dedication in order to provide our customers with the best possible services
Excellent customer service and communication. Quick start date, bang on budget. Job not started yet.
At Safeview Windows and Doors, we take great pride in our products and services. Our team are dedicated to providing our clients with the highest quality and most affordable windows and doors on the market. We understand the importance of client satisfaction, and we strive to exceed all expectations with every project we undertake. With decades of experience in the industry, we have built an impeccable reputation for our expertise and commitment to excellence. Services: Windows Doors Bi folds Extensions Conservatories Orangeries Kitchens Roofline Garden rooms Facias Soffits Gutters Warm roofs
Excellent tradesman.Would strongly recommend Healey and sons.
FINISHERS. You're complete building & decorating solutions. Established 1995 , finishers is a family ran business in the centre of Cambridge we guarantee any work undertaken will be completed to the highest standards. For a free quote contact FINISHERS
Michael replaced the window in the garage with a glass door on time and on budget. He is easy to communicate with, cheerful , efficient, and tidy. We liked his positive attitude.
HEX360 was founded in 2015 by Craig Lewis with the solid foundation that a degree in construction management provides. Before launching HEX360, Craig’s former life saw him working at Princess Yachts, where he founded his skills and acquired his particular attention to detail – but if you’ve reached this page, you probably aren’t interested in hearing Craig’s life story… you’re really interested in finding out what makes HEX360 different to all the other construction companies out there. So read on and discover our difference. Working with most construction companies can feel a bit like finding your way in the dark – you just don’t know where to go to get the information you need. The stereotypical construction company that makes matters so confusing and complicated that everything they say goes over your head is, unfortunately, not just a myth. They’re out there, and they’re confusing clients as we speak. So, it’s no wonder that so many people put off their project or come to a grinding halt partway through – after all, it can all feel just too overwhelming. Luckily, HEX360 is here to change your perceptions and prove that not all construction companies are the same. We’re dedicated to working with you, not for you, and that means taking a collaborative approach right from the get-go. With our 8-step process, we’ll clearly outline every stage of your project so you won’t feel overwhelmed, and thanks to our use of in-house project management software, you’ll have complete transparency for every aspect of your project. We are committed to flexibility, accessibility, and approachability so your project can run smoothly, whether you’re updating your kitchen, renovating or extending your entire home or developing a large commercial property. You’re more than a number on a spreadsheet to us, and we never bite off more than we can chew. Our attention and efforts are solely dedicated towards you and your project during your time with us. Unlike with some construction companies, once we begin work on your project we don’t simply move on to our next. We provide industry leading account management during the full life cycle of the project, meaning you aren’t forgotten about once you sign on the dotted line.
i would like to add this group of workmen are the best i have seen for a long time.they are prepared to go above and beyond to ensure a professional and efficient project is completed. Above all they are honest ,trustworthy and obliging in every way. Highly recommended.
I am based out of Gloucester, but willing to travel to surrounding cities. I am extremely confident in my skill set. When it comes this trade, nothing beats the experience I have.
Glyn came round very quickly and did a cracking job in my soffit this was very rotten and degraded. Punctual and completed the job as described would recommend
Electrical, Mechanical & Building Services. Electrical installation Extensions Conversions Kitchens Bathrooms Refurbishments All associated building works NICEIC Aproved contractor. SafeContractor Approved We are a team of highly skilled, well experienced and passionate professionals who puts your needs at the forefront of what we do. All our work is completed to the highest industry standards and compliance with regulations is always met.
Harry and his team turned up when they said they would. Kept me informed as to how the job was progressing. All were very polite and courteous. They went out of their way to clean up after themselves. Very pleased with my new ceiling and spotlights and my outside sensor lights. Has given my property a fresh look. I would add that Harry wants to ensure you are happy with the work and if you have any queries, Harry addresses them. This is rather refreshing.
Comprehensive Building and Landscaping Services by R Richards Builders & Landscaping R Richards Builders & Landscaping is a family-owned business with over 30 years of experience, specialising in a wide range of construction and landscaping services. Our Services: - General Building: We undertake all types of general building work, ensuring high-quality craftsmanship in every project. - New Builds: From planning to completion, we provide comprehensive new build services tailored to your specifications. - Extensions: Whether you’re looking to add more space or enhance your property’s value, our extension services are designed to meet your needs. Renovations: We offer expert renovation services to transform and modernize your existing spaces. - Restorations: Our team is skilled in restoring properties to their former glory, preserving historical integrity while updating functionality. - Groundworks: We handle all groundwork projects, including foundations, drainage systems, and site preparation. - Landscaping: Our landscaping services cover everything from garden design and maintenance to hardscaping and outdoor structures. Why Choose Us? With a commitment to delivering the highest standards of service, we pride ourselves on completing projects on time and within budget. Our team is passionate about quality and customer satisfaction, ensuring that every project, no matter the size, is executed with precision and care.
Roof inspected and job requirements clearly explained with an immediate quote given.Work undertaken in a friendly and professional manner.Site cleared during and after completion.Happy to recommend.
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