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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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From a single wall to a complete house, inside and out, plastering/rendering. Also roofing, stonewalling, extensions and general maintenance....no job too small. Please feel free to email me or leave me a message and I'll get back to you.
Reliable, personable, conscientious, trustworthy and reasonably priced. Can definitely recommend .
Davies Building Services is a well established business based in Herne Bay. We service within a 50mile radius of Herne Bay, we provide a wide range of building services including extensions, loft conversions, garage conversions and barn conversions. We provide excellent communication and offer competitive prices, get in touch for a free quotation and we will get back to you quickly.
Great job, professional to deal with and left job very clean. Would highly recommend.
Campbells Roofing & Joinery
House Extension
Campbell’s Roofing & Joinery is a Dunfermline-based contractor that delivers two complementary services under one roof: Roofing – installation of new pitched or flat roofs, replacement of damaged coverings, emergency and scheduled repairs, plus roofline work such as fascias, soffits and guttering. Joinery/Carpentry – bespoke interior and exterior wood-work for new-builds, extensions and refurbishments, including structural timber framing, doors, windows, decking and finish-joinery details. The Team has been working for almost 20 years, giving it close to two decades of hands-on experience with both traditional Scottish construction and modern materials. That depth of know-how lets the team handle projects from minor leak fixes to full roof-and-loft renovations while providing the neat, purpose-made joinery that ties everything together
Hi, We are a small local company with over 35 years of trading behind us in the building industry. Our website has loads of customer reviews, and you can speak with previous clients where we have carried out work, and also visit some of our completed projects. You are guaranteed an excellent service, reliable and trustworthy guidance, and will be totally satisfied with any work which we carry out for you. My aim is to please 100% every time, and you will not be disappointed. Our specialist work currently is garage conversions to habitable rooms. We can also offer remedial advice on condensation and damp issues. We love a challenge! Anything unusual is welcome. You can trust us to work in and around your home. I assure you of my personal attention at all times.
Dean and his team completed several jobs for me including solar outside lights, putting up blinds, TV on wall, garden mirror., taps dripping and sink leaking, and replacement taps. Great to get all these jobs done at the same. Friendly and professional service. Would recommend Jean Pierce, Hockley
JJ Walker property development. All trade contractors
Everything done superbly well due to the efforts of Taylor. Kept us advised at all stages of the job. Would recommend unreservedly.
Keen Resources: Elevating Your Spaces for Years to Come Welcome to Keen Resources, your trusted partner in building and property maintenance solutions. Established in 2014 and proudly located in the vibrant North West London area, we are your go-to team for all your construction needs. At Keen Resources, we bring a wealth of experience to the table, with a family-run business that boasts a remarkable 25-year track record. We specialise in providing a wide range of services to Residential, Commercial, and Estate Agent clients, ensuring that every project is executed with the utmost precision and professionalism. Our dedicated team of experts covers a diverse spectrum of services, including: General Building: From the ground up, we craft solid foundations for your dreams to take shape. Roofing: Our experts ensure your property is protected from the elements with top-notch roofing solutions. Electrics: Safe and reliable electrical services to keep your property powered efficiently. Kitchen and Bathroom: Transforming these essential spaces into stunning, functional areas you'll love. Refurbishments: Breathing new life into tired spaces, making them vibrant and appealing. Plumbing: Efficient plumbing services to keep your property's water systems in excellent condition. Carpentry: Craftsmanship that adds character and functionality to your interiors. Tiling: Precision tiling work to enhance the aesthetics of your property. Painting and Decorating: Creating inviting and visually pleasing environments. Handymen (Multi-Skilled): Versatile experts ready to tackle any project with skill and efficiency. At Keen Resources, we are not just builders; we are partners in bringing your vision to life. We take immense pride in our commitment to delivering superior quality, meeting deadlines, and exceeding your expectations. Customer satisfaction is at the heart of everything we do. We believe that every project, big or small, deserves the same level of care and attention. With Keen Resources, you can trust that your project is in capable hands, and the end result will be nothing short of exceptional. Experience the difference with Keen Resources, where excellence in construction meets a passion for customer satisfaction. Contact us today and let's embark on a journey to turn your property dreams into reality.
Excellent very pleased with your service. Have already booked a return
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Erisure LTD , we are a family owning business running for more than 6 years. Our home improvement business is born from knowing exactly what you want in your home or business places . Our business aim is to fill your home and business places with love and comforts . Here is Just to say few of the many services we offer - We do total interior refurbishments for kitchens, bathrooms, floors , walls , ceilings, Tilings and more . Painting and decorating is also one of our core and passionate services. We improved , painted and decorated hundreds of homes so far.
Desali delivered an exceptional service. The job was certianly not straight forward but given his persistence and creative thinking he managed to provide exactly what I needed. I would recommend him as a plumber to anyone looking to get a reliable, dedicated service for any plumbing related issues or projects. He's a top bloke
Welcome to Levelin Group – your trusted experts in bathroom and kitchen design, supply, and installation, with over 15 years of experience. We specialize in complete bathroom renovations, bespoke kitchen installations, and tailored 3D CAD designs to bring your vision to life. Our comprehensive services include bathroom fittings, custom kitchen cabinetry, plumbing, tiling, and flooring– all completed to the highest standards. Whether you’re planning a luxury bathroom transformation or a stylish, functional kitchen upgrade, we’re here to deliver precision, quality, and care. Contact us today for a free, no-obligation quote – let us transform your space into something extraordinary!
I did not hire this company. They came to assess the job and promised to send me an estimate by email. However, despite several messages to them from myself, they never had the courtesy to respond or send me a job estimate. I would have zero confidence in this company, and obviously their customer relations needs improvement. Consequently, I am still seeking a tradesman to do the job.
Creative Building Services
House Extension
Electrician at Self employed electrical engineer
Came out short notice. Managed to squeeze me in. Due to short notice of getting room plastered 3 days later. Had 4 double plugs put in. In chrome like I wanted. They were professional and cleaned up after themselves. Will definitely use again
We have carefully developed a reputation for reliability and high quality workmanship as surfacing contractors and roofing specialists. We specialise in all types of driveways and roofing. Producing exceptional surfacing and roofing solutions for both commercial and domestic customers. Our considerable range ofservices includes repairs, new roofs, guttering, driveways, pathways, car parks, road repairs and pavement lowering, so you can be certain that our dedicated team will be able to meet your specific requirements.
Quick and prompt. They used a drone to show me the damage to the roof caused by the wind.
Welcome to AdvancedWall2Wall, where expertise converges with excellence in house extensions, renovations, and all-encompassing building solutions. As a family-run business with an illustrious legacy of over 30 years in the plumbing and heating industry and a robust background in the building trade, we take pride in transforming your vision into reality. Specializing in house extensions, AdvancedWall2Wall offers a spectrum of services covering every facet of your project, from initial groundwork to the final finishing touches. Our team comprises adept professionals, including experienced gas engineers, bricklayers, and plasterers, all proficient in navigating the complexities of home extensions. From conceptualization to execution, we bring a wealth of knowledge and hands-on experience, ensuring your dream space is realized with precision and care. Our dedicated team of 8-10 professionals is passionate about delivering top-notch craftsmanship in all aspects of building work. Recognizing the importance of a reliable and skilled workforce, we invest in continuous training and development to stay at the forefront of the industry. Whether it's creating a seamless blend of functionality and aesthetics or addressing specific needs within renovations, we bring a wealth of expertise to elevate your project to new heights. At AdvancedWall2Wall, we are a fully insured limited company, placing the safety and security of our clients at the forefront. Our commitment to excellence extends beyond craftsmanship to offer you the peace of mind that comes with working with a reputable and reliable partner. Trust us to breathe life into your ideas, with an unwavering dedication to quality, integrity, and customer satisfaction that sets AdvancedWall2Wall apart in the building industry. Your vision, our expertise – together, we build dreams.
Would highly recommend Wayne. Quick response to my advert, came out to look at the job quickly and arrived early, gave me the best quote and has done the job when he said he would and to a great standard. Really helpful and friendly, wouldn’t hesitate to use him again for future jobs.
Simicus Construction LTD
House Extension
This is Simicus Construction Ltd, we are a team of builders with over 20 years of experience in the Construction Industry.
We want to assure you that you can simply stand by and safely watch your work being completed to the highest quality in the shortest possible time. We have ten years of experience in this line of work. Just send an email or give us a call to get your quote and ask any questions
Room Builder
House Extension
Room Builder has over 40 years of experience in supply and installing 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.
Hi everyone , thanks checking my profile I’m Vas , have more than 10 years experience in construction I got level 3 diploma in carpentry, my main job is carpentry, but being in the industry so long I also can do handyman, fencing, ground work and foundation, decking, etc j
Brilliant workmanship , did exactly how we needed the shelves to be made. Highly recommended
TCL Building and Landscapes, friendly professional service.
Quick response and turn around
Ruhulla Test
My name is Max Akkaya and my company started with plumbing and bathroom refurbishments after graduating from my NVQ level 2 course in Heating and Ventilation. In the last 20 years we have evolved into One Stop Design and Construction Ltd - a fully insured company that covers all aspects of home improvements such as loft conversions, extensions and bespoke refurbishments. I haven’t been on Rated People in a while as I have got all my work through recommendations, however I recently moved to Surrey so I am building my client base out here also. I’m straight forward, honest and pride myself to giving attention to the smallest of detail. We undertake small and last scale projects and work with a team to deliver loft conversions, extensions and bespoke refurbishments including all plumbing, electrical and gas needs.
Very pleasant experience. Punctual, polite, efficient and friendly. The job was finished to a very high standard. Would recommend 100%
LITA CONTRACTORS LTD We are a family owned construction company with over 10 years of successful commercial and residential building projects. Based in London, we help clients with all kinds of construction needs, with existing plans or brand-new designs and solutions. Some of our services include: - Ground work - Drainage - Basements - First Fix & Second Fix - Kitchen & Bathroom Fit Out - RC Frame & Steel Frame We are specialised in delivering reliable and best quality services that will last a generation.
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