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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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Brickbuilds
House Extension
Welcome to Brick Builds! We are a well-established building company in the South West with over 17 years of experience in both traditional and contemporary building techniques. Brick Builds offers a comprehensive service from design to completion, working closely with our clients to provide solutions tailored to their needs. Rest assured, all our tradesmen are professional, courteous, and respectful of both property and clients at all times. We look forward to working with you on your project.
General Builder 19yrs in the trade Highly skilled - standard to high end jobs
Excellent decorator and builder. Professional, reliable and courteous Completed a 5 bedroom home with small building and electrical works to a high standard.
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
The company carries out various small and large building and restoration works, mainly for the domestic market. The company also specialises in lime mortar repointing and rebuilding of brick structures built from lime based aggregates.
Andrew quoted on the job and stuck to quote. He explained what needed doing in lay person language. The job looked tidy and he explained when to wash the patio so as it to disturb new mortar. I am very pleased with this job. Thank you Andrew
We are two brothers, that have been in the trade for 10 years both qualified joiners, who undertake all aspects of internal and external bespoke joinery and construction.
Fantastic job , really pleased with the work. Turned up on time , cleaned up . Would definitely recommend and will use them again for any future work
CG Building LTD , it is a small company , established back in 2016. We carry work all around UK , but now we are based in Somerset and we cover all surrounding areas. •We take small & big jobs ! •We do all aspects building •We offer a friendly and reliable service, working closely with the client to make sure they have a clear understanding of the works that are being carried out throughout the process. -Renovations- - Kitchen and bathroom insulations- Plastering. - Painting and decorating. - Carpentry-
Very professional. I would definitely recommend this trades person. Good pricing and great work. I am keeping his contract for work in the future.
Neil Chamberlain Neil has over 30 years of experience in the construction industry, where he has gained a comprehensive level of knowledge and a thorough and in-depth understanding of most trades and skills. Neil commenced his career in construction as a sub-contractor building loft conversions, primarily in West London, and was awarded by The Federation of Master Builders for an exceptional conversion in Wimbledon. Neils recognised high standard of work has secured many diverse construction projects, including the substantial renovation of Period Houses, including listed buildings, single and double storey extensions, detached new build projects, an award winning Chelsea landscaping and garden design, as well as commercial buildings. Neil has worked as part of a team, as a main contractor and has also project managed all elements required in completing building projects large and small successfully. Property Service, (NPS) is a family owned and run business, bringing an extensive level of ability to benefit our clients projects. Whether you require property maintenance or are planning something more substantial our team will assess your requirements and put in place a tailored package for you, from an appropriately detailed quotation on smaller projects, to an all encompassing design and build service, including - planning, building control and a detailed costed schedule of works, we have the experience and background to meet your requirements.
We are a family business that covers all type of building work : Flooring, Electrical and Plumbing installations, Painting and Decoration, Bathroom and Kitchen installations, Extensions and Loft conversions, etc. All our work is certified and guaranteed.
Alion and the team worked tirelessly to compelete our bathroom in what was a tight schedule, achieving a stunning result, and for a fair price. I couldn't recommend them enough.
TESY AYCE KIERAN
House Extension
Hi my name is Tom I’ve been plastering for 20 years. I provide a clean helpful service and i do my up most to meet customers requirements
Tom came to skim my son's ceiling but because it had old artex and very uneven he decided to put a false ceiling in, board that and then skim it. Tom is a really friendly guy, kept showing me where he was up to in the job and was very tidy and did a great overall job at a good price. Wouldn't hesitate to use Tom again or recommend to friends and family.
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jarad London Construction Company have partnered with homeowners, designers and architects to deliver unrivalled construction, renovation and refurbishment services across London and the Home Counties.
job is done very quickly.
Drayton Property Services are a local family run business with over 50 years of experience. Our experience allows us to provide a wide range of services and advice, resulting in happy and satisfied customers. We aim to provide a top quality service, from a prompt response to your enquiry through to the completed works.
Tom made an excellent job of both, arrived on time, endured dogs and couldn't have been more helpful
Pyramids Home Refits Pyramids Home Refits is dedicated to enhancing the beauty and functionality of your home through our impeccable construction services. With a team of highly skilled builders boasting extensive experience, we are committed to realizing your vision and creating spaces that reflect your unique style and preferences. Craftsmanship and Excellence: At Pyramids Home Refits, we take pride in delivering some of the finest construction work for residential properties. Our team of fantastic builders is renowned for their craftsmanship and attention to detail, ensuring that every project is executed to the highest standards. Tailored Solutions for Your Home: We understand that your home is more than just a building; it's a reflection of your personality and lifestyle. That's why we work closely with you to understand your needs and aspirations, offering tailored design solutions to bring your vision to life. Comprehensive Services: Pyramids Home Refits offers a comprehensive range of residential services to meet all your renovation needs. From flooring installations that elevate your living spaces to bespoke kitchen and door fittings, and meticulous painting, we provide a complete solution for transforming your home. Customer-Centric Approach: Your satisfaction is our utmost priority at Pyramids Home Refits. We believe in building strong relationships with our clients based on trust, communication, and transparency. Our team is dedicated to ensuring that your experience with us is seamless and enjoyable from start to finish. Choose Pyramids Home Refits for your residential construction needs and let us help you turn your house into the home of your dreams. With our expertise and dedication, we'll make your vision a reality, one project at a time.
Great service, very professional and friendly. The job was done to our exact specifications. Would recommend it highly.
Plumtree Home Improvements
House Extension
At Plumtree Home Improvements, we provide high-quality home improvements, driveways, and landscaping solutions to enhance both the look and functionality of your property. Whether you’re planning a home extension, an orangery, a new roof, windows, doors, or a stunning driveway, we have the expertise to bring your vision to life. Our services include: ? Home Extensions & Orangeries – Beautifully designed spaces that add value and style ? Roofing, Windows & Doors – Quality installations for durability and energy efficiency ? Driveways & Landscaping – Expertly installed resin, block paving, and imprinted concrete driveways, plus complete garden transformations ? Patios, Walls & Fencing – Creating stylish and practical outdoor spaces With over 15 years of experience, we take pride in delivering exceptional craftsmanship, attention to detail, and outstanding customer service. No matter the size of the project, we’re committed to quality from start to finish.
We provide a professional building service throughout Lancashire and Cheshire. The business undertakes commercial projects and all kinds of private work I.e New Build single and two story extensions structural work full refurbishments and all aspects of construction with a large Client base . Please feel free to call between 9 am and 5 pm Monday - Thursday and 9 -12.30 on Fridays.The business is closed at the weekends W we are a member of the National Federation of Builders
Karl did a good job taking care to make minimal mess and noise. He understood my requirements and explained what he was doing in just the right detail.
We are a Worcestershire based building company. With 20 years experience. We specialise in brickwork stone work and natural stone. We offer a landscape groundwork and building service. All aspects of building and landscaping work undertaken. No job to big or to small
Mark was very professional and reliable. Excellent standard of work, left everything clean and tidy on completion of the job. We are very pleased and would highly recommend them.
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.
CRM Unlimited Test 2
House Extension
SAS RESOLVE LTD
House Extension
GETTING YOUR PROPERTY REPAIRED IS OUR NO.1 PRIORITY. We are Concept Claims Solutions Buckinghamshire. An end to end project management service to return residential and commercial premises back to their pre-loss condition following our tried and tested processes and systems. With over 20 years of experience; Our system allows the complete cradle to grave management of both a property insurance claim and private renovation job from first notification through to settlement. As Principle Contractors, we undertake all aspects of property repair, rectification and renovation. SAS Resolve Ltd trading as Concept Claims Solutions (North Bucks) is an Appointed Representative of Citrus Compliance. Citrus Compliance is a trading name of Andrew Smith which is authorised and regulated by the Financial Conduct Authority. Concept Claim Solutions (North Bucks) is a franchise owned and operated under license, with a registered name of SAS Resolve Ltd. Registered Address: Jubilee House, East Beach, Lytham St.Annes, Lancashire, United Kingdom, FY8 5FT. Registered in England. Please note that photos are for illustration purposes only.
Hi my names James and I’m a 26yr seasoned 1st and 2nd fix carpenter. Ive worked on everything from floors to loft conversions. Dados to doors to bespoke wardrobes. Garden rooms to bespoke gazebos.
James was friendly and knowledgeable. Gave us plenty of advice about how to properly look after the woodwork of the shed. Had clearly done similar work plenty of times before, and knew how to handle the task. Would recommend
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