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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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Reliable, trusted working in the business since 2000. We work in conjunction with the client to get the best outcome for any job, within the time frame required. That is why we are trusted and recommended by many clients.
Very good and reliable.
Renovation company based in Crawley, West Sussex. Specializing in all types of interior work. Decoration, skimming and wallpapering. Bathroom refurbishments. Kitchen refurbishments. Full house refurbishments. Real wood, laminate and vinyl flooring. New plumbing installations and old plumbing maintenance. Wall removals, RSJ inserting and room reconfigurations. Any size project from small to large scale is welcome! Offering over 20 years experience, high quality with minimum hassle!
Slavek and his team worked meticulously to complete our bathroom refurbishment to our requirements. They were prompt everyday, gave us some good constructive advice and carried out work to a high standard. We will definitely be using his company for future projects and will recommend them to friends. Great service!!
General builder
Fantastic work, Excellent attention to detail. Superb character! Highly reccomend!
Family company who started trading in 2013 .Our mission is to impact lives, offer our greatest services and advice to homeowners and to develop ongoing relationship for the future. In an ever more tough environment which is governed by the big companies we still believe that developing a good relationship with people is paramount. We always give 100% in order to deliver big or small projects on time with a great sense of duty and responsibility. This being said we are here to offer out our five star services to you in a way that we would like any business regardless of their domain to provide . Many thanks and God bless you. Tudor
I cannot recommend this company highly enough. Tudor & Darius did a brilliant job re-decorating my 2 bed flat, moving furniture around as needed without any fuss. They work quickly and meticulously neatly & cleanly. Tudor gave good advice on what type of paint to use on my woodwork, I didn't want it to look too shiny so chose eggshell. Whilst here they also sanded and re-hung my front door to prevent it from sticking. I would definitely use them again.
Dorset Extensions Group Ltd
House Extension
Transforming homes in Dorset WE DO IT ALL JUST CALL ! We are your one stop construction and electrical company whether your a home owner or a business we cater to all your building and electrical needs. Trust Dorset Extensions to bring your home and electrical improvements to life.
Smart Choice Roof
House Extension
SMART CHOICE ROOFING SERVICES Established over 3 years ago, we provide expert roofing services to commercial and domestic clients across Surrey, Hampshire and West Sussex. A wide variety of services can be carried out to fulfil all your roofing requirements, from new builds to re-roofs, roof repairs and more! Why hire us? 1. All our work meets strict quality and safety standards. 2. Our workforce is subject to continuous training and the company health and safety policy is regularly monitored and updated. 3. We offer emergency call out. 4. We undertake insurance work.
Home First Services - Qualified installer with over 20 years experience. Providing building and carpentry services. Aluminium and UPVC specialists.
Zane provided an outstanding service in carrying out building works and drainage in our garden We are very pleased with the experience from survey to completion
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Full property renovations, extensions, loft conversions, outbuildings & more.
Absolutely useless made our life a misery never book these had a bathroom fitted horrible job then when it leak and destroyed my front room ceiling trust when I say don't use them .
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
Rooftop construction Ltd a locally run business with many years in the trade we aim to please all our customers with precision roofing techniques and a wealth of knowledge to solve any roofing issues including flat roofs pitched roof garage roofs we also attend to storm damage work and we aim to attend all quotation on time every time !
With over 25 years of experience, and with Danny Walker at the helm and Alex Grouse of W2.0 Developments Ltd has become a trusted name in construction and development in The Home Counties. As a reputable principal contractor, we specialise in delivering high-quality construction services to both residential and commercial clients. Our commitment to excellence and client satisfaction sets us apart as one of the top construction companies in The Home Counties. Founded on the principles of quality, reliability, and innovation, W2.0 Developments Ltd has grown from a small local contractor into a leading force in the construction industry across The Home Counties. Our journey has been driven by our dedication to delivering exceptional results, building lasting relationships with our clients, and continually raising the standards of construction.
Dan is a force of nature, as anyone who’s met him will agree. He and his team were always dedicated, hard-working and good natured. I would recommend Dan and his team to anyone, especially for a big renovation project like this, which involves working with other parties, such as structural engineers, kitchen designers and installers, as he works with them and takes away most of the pain. The quality of the work is excellent and he always came back to complete the snag list (even 3x for our thresholds).
Very happy with the work Mosaic did. They did 2 bathroom makeovers, they were let down by a tile supplier which delayed our timetable but in general the team were good to work with, focussed, and listened to what we wanted. Also very helpful on design, selection of materials, and adjusting for problems discovered when ripping out the old bathrooms. I would be happy to recommend and use them again.
We specialise in all carpentry and building work Quality finish garinteed with nearly 30 years experience in every aspect of joinery and building work Great customer service means everything to us leaving every job how you expect it to be completed Look forward to providing you with a competitive quote
Accommodated everything I asked for. He checked that I was happy with certain things before proceeding. Everything was done perfectly. Cleaned up after as well. Will definitely use again.
GRS BUILDING SERVICES
House Extension
Welcome to GRS Building Services, where craftsmanship meets commitment. With a decade of unwavering dedication, we have been providing top-notch construction services across a spectrum of specialties. From robust brickwork and blockwork to seamless extensions, solid substructures, captivating landscaping, and durable fencing – GRS Building Services is your trusted partner for all your construction needs. Our exceptional team is the backbone of our success, ensuring that each project is executed to the highest standards. Whether it's crafting intricate brick details or constructing expansive extensions, our skilled professionals bring precision and expertise to every job. Operating from Chelmsford to Cambridge, we have established ourselves as a reliable and efficient construction partner in the region. Our commitment to excellence is reflected in the quality of our work and the satisfaction of our clients. At GRS Building Services, we understand that your project is not just a construction endeavor; it's a vision brought to life. That's why we take pride in our ability to deliver results that not only meet but exceed your expectations. With a focus on brickwork, blockwork, extensions, substructures, landscaping, and fencing, GRS Building Services is the solution for those seeking a dependable and skilled construction partner.
For over three decades, Millington Construction has been a trusted, family-run business dedicated to turning customer ideas into reality, consistently delivering within budget and on schedule. Whether you envision an extension or require maintenance, our comprehensive expertise in the construction industry ensures all aspects of your project are covered. Comprising a skilled team of 12 professionals, each member brings a wealth of expertise and dedication to every project. Our Services: Extensions: From single-storey to multi-storey extensions, our experienced team of builders skillfully executes diverse projects tailored to meet your specific requirements. Maintenance: Trust us for meticulous maintenance services designed to keep your property in prime condition. Our Approach: At Millington Construction, we firmly believe in the strength of our team. Our highly knowledgeable tradespeople are passionate about transforming customer ideas and dreams into tangible results. They are supported by our design and structural engineering partners, enabling us to confidently undertake projects of any size. Why Choose Us? 1. Pride in Craftsmanship: We take immense pride in our work, ensuring attention to detail in every job we undertake. 2. Driven Workforce: Our team is motivated and committed to delivering excellence, ensuring your project's success. 3. Customer Satisfaction: Your happiness is our priority; we strive to exceed your expectations at every stage of the project. 4. Certified for Security: We prioritize safety and security, ensuring that our work meets certified standards.
Quick to respond to job request, all work done efficiently and professionally. Have already requested millington construction projects Ltd to return and do another flat roof
We are a Derbyshire based building company who work to very high standards and expectations all our staff and sub contractors are time served professional people Monument castle has been trading since 2009 and have built up great relationships with trades and suppliers during this time , We undertake all types of building works from extension to new build homes to commercial works
Extremely happy with work carried out, first class job at the right price, would recommend to family and friends.
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
Welcome to HOME IMPROVEMENT PROJECTS & SERVICES (HIPS HOMES) Ltd, where excellence meets integrity. We offer a wide range of construction services, ensuring quality and efficiency in every project. Discover our outstanding reviews and let us help you make hips of SAVINGS on your budget, add VALUE to your property, and enhance your own and or your tenant's COMFORT. #HipsHomes #HomeImprovement #TrustedBuilders #QualityCraftsmanship
Ernest is a very hardworking tradesman. He replaced locks for us.
hi my names Chris. I am a very handy person with things that needs doing around the house. and I charge very fair prices. We cover most areas from roofing, gardening, plastering, some plumbing, painting, almost anything you need do we have you covered so get intouch for a free quote
Martons Building Contractors
House Extension
Martons Building Contractors is a trusted name in construction, known for our problem-solving skills, attention to detail, and innovative designs. Our mission is simple: to exceed the expectations of every client we serve. We offer a range of services including conversions, extensions, groundworks, new builds, and roofing. With a combined experience of over 100 years, our team of 5-6 professionals ensures that every project is executed with precision. While our core team is small, we have a network of reliable subcontractors for electrical and plumbing work. Based in Leeds, North Yorkshire, and Lancaster, we are dedicated to serving these areas with quality construction services. Choose Martons Building Contractors for reliable craftsmanship and a commitment to excellence in every project. All contracting works available and covered in and around Yorkshire.
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