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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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With over 30 years’ experience in the construction industry, we know how to deliver work that looks good and lasts. We work on properties of all shapes and sizes, commercial and domestic, turning your dreams into a reality.
What an amazing guy!, another 2 weeks and he would have become a member of our family!. You can set your clock with George, he was at our door an 8am on the dot every morning. He gave us so many different ideas which really helped us. His workmanship i, totally flawless. We know what quality looks like now. George is a loyal, honest and hardworking individual who will always be our first choice when getting work done.
Building company based in wednesbury providing quality workmanship with individual design to meet your requirements.
He is doing the repair on Saturday
Keep it Klean offer a wide range of internal and external cleaning. We also cover a wide range of general building and maintenance: Driveway/patios, Roofing, Fencing, tree felling and clearances. We are a professional, reliable and honest company.
Swift and helpful
AD handyman Services we will undertake/consider any handyman jobs painting flatpack assembly,,shed assembly/removal, roof recovering, reseal of showers/baths/kitchens blinds/curtainso . Any decking and fencing requirements.... and many more internal and external jobs. All works carried out as efficiently and cost effective as possible without a reduction on quality.
Alex and his team were fantastic. The work was carried out to a high standard and was exactly what I wanted. Communication was great and everything was tidied up afterwards. I would highly recommend Alex and his team.
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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 .
www.kbaconstruction.online MAKE YOUR HOUSE INTO A HOME TODAY WITH KBA CONSTRUCTION'S We are a building company with many years combined experience. working as Builder in London (UK), we help to make your house a home or property investment you can rely on.
Did a fantastic job and at good price
Excellent, efficient job and area was left incredibly clean and tidy at the end. Very good communication throughout the quoting and arranging process. Highly recommended.
Experienced multi tradesman specialising in Gas boiler installation ,boiler servicing and landlord gas safety certification and plumbing, I also carry out the following: •Bathroom/kitchen installation •Emergency work (plumbing gas water electric installation) •Handyman in big or small jobs including painting and decorating •Lighting works •All aspect of plumbing and heating Portfolio and customer feedback from completed work can be shown. Online Free quotations. Covid guidelines followed with strict enforcement.
Came the same day, fixed the machine, no fuss. Did a good job.
Cheshire Sales
House Extension
About at AC kitchen &bathroom fitters LTD,our rich legacy of 20+ years of our commitment to excellence.based in ash vale Surrey GU12 5NG,we have honed our craft over the years delivering top- notch services that exceed expectations. Our services include: -Full- scale transportations : from complete house refurbishments to renovations and extensions,we redefine living space. Bathroom &kitchen expertise:we specialise in the installation of new and refurbished bathroom/kitchen/cloakroom/en suite shower/wet room. -Efficient plumbing solutions:our services encompass radiator and towel rail installations,shower pumps and extractor fan setup. -Quality fixtures:we supply high quality bathroom fittings en-suite,showers and wet room essentials. -Tailored kitchen design: team excels in designing,supplying and fitting bespoke kitchens . -Finishing touches:we cover all aspects of your project, tilling,aqua panels,plastering,decorating and carpentry (solid wood and laminate flooring) Why choose us? 1-References:our satisfied clients serve as our best reference 2-One-stop solution:we seamlessly coordinate multiple trades,simplifying the process for our clients. 3-Fully insured:rest easy knowing we are fully insured and our experienced team ensures a job well done. 4-Free estimates:we provide no-obligation,transparent estimates. 5-Personalised service: our friendly approach keeps you informed at every project stage.
We are a reliable, friendly company specialising in home improvements and property maintenance. Fully insured, we are committed to providing an excellent service to our customers. Our services include; General property maintenance Painting & Decorating Driveways Fencing Landscaping Mowing and Hedge cutting services And more.. We look forward to hearing from you to discuss your requirements. Contact us today for a free, no obligation quote!
Great work. Delivered the brief in the timeframe and on budget. Left them to get on with it and they sorted the whole thing without any hassle.
We provide a superior Handyman service -Painting and decorating -Laminate flooring -Doors installation -Changing door handles and locks -Patching and painting. -Exterior Upgrades. -Pluming -Bathroom installation
Marco responded straight away to my advertised job, and was able to start immediately. Great communication throughout, arrived on time and had the emulsion job done within the day, as well as stripping wallpaper and patching up a little hole previously caused by a broken blind. Left flat clean and tidy, did an excellent job and really happy with the standard of work. Highly recommended.
Aquafix Property Maintenance specialise in property extensions, bathroom and kitchen refurbishments
Derek is a professional and he came around at short notice to fix my boiler. He gave clear advice and also what he was doing. The repair required multiple visits but he managed to keep me up to date on what he was doing and also the costs were reasonable. I highly recommend him.
R&B refurbishment ltd For a decade, a Proficiency building company based in London has led all aspects of construction, luxury design and build. Whether you're looking to expand or refine your home with a loft conversion, rear or side extension, basement excavation, cellar conversion or a top to bottom refurbishment, our ethos is quality-first craftsmanship for the very best in residential design and build in London. When it comes to the quality and care that we put into every project, we think of ourselves as one of the leading building companies in London. This means that, as the right builder, we have the team, the expertise and the commitment to a high quality that sets us apart. Fully insured with Public and Employers Liability, Professional Indemnity, Contractors All Risk and high-risk basement works. We offer a 15-year guarantee on all of our structural building work. Proficiency only uses the highest quality building materials ensuring everything is built to standard and will last.
Fired him for appalling work, no-shows and delays; see his other bad reviews. He's a middle man; does not do any work; got others to do it like a plumber, then a tiler the next day; slow work made worse when someone messed up or did not show up. Ali only shows to deliver materials or check work. Quick to reply when wanting the job. Slow/no response once job starts thinking you wont cancel. Materials I paid not returned; take every receipt and check you keep/use every item as he will even for wipes/tape
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.
Apex Construction
House Extension
Genuine Oxford Based Company Welcome to Apex Construction. Established for 33 years, we pride ourselves on our personal & individual approach to achieve a 1st class professional project. · Full design service with 3D imaging · Local authority approved · Oxford's leading loft specialists · Extensions & renovations · Property development Our dedicated team are committed to give you the best service available in the Oxford area. Design to Completion With extensive knowledge in property development we can guarantee you a personal, one to one service, making sure that all your needs are catered for. Our staff are fully qualified handpicked craftsmen that will work with you from conception to completion and ensure a quick & efficient installation is carried out with minimum disturbance to the household. Apex Construction · We offer free written quotations & design statement. · All our work is backed with a written contract & guarantee. · Due to our accurate quotations and sufficiently low overheads we can offer the most competitive prices, with the guarantee of superb workmanship. · We are a family run local business who take care to satisfy our client’s needs. In conclusion, we provide a very individual project design for your home, with a personal approach to you as a valued customer.
JN PRO BUILD LTD
House Extension
We are small independent building firm who work to extremely high standards, Over the many years we have undertaken 1000s of full building conversions, Inc bathrooms,kitchen, load bearing walls, studwork, first and second fix joinery, first and second fix plumbing. We our fully qualified and work to the very highest standards I
S&D Construction Services is a premier general construction business with over of 23 years of Experience in the construction industry, we have established ourselves as a leader in delivering comprehensive construction services with a wide range of sectors including residential and commercial projects across London Our mission is to provide exceptional construction services and client-focused approach to every project we undertake
Unfortunately I’m dissatisfied with the job S&D has done for 3 reasons: * they smeared with the cement mix all the brickwork they touched as well as the adjacent wall and the electric car charger * they left the rubble behind * they were going to leave the roof not weather sealed until I spotted and and fought for it to be mended
A-S-Taylor established in 1994. specializing in drylining,plastering,demolition and alterations. we are a family run company with many years experience in all aspects of building works.profile picture and photos will be uploaded shortly.
only received one trade caller.
AD Property Maintenance Services Ltd is a modern, client-focused property maintenance company based in Central London. We specialise in high-quality handyman work, painting and decorating, deep cleaning, Venetian plaster and microcement finishes, removals, and general refurbishment services. What sets us apart? We're reliable, responsive, and transparent. Our team of trusted professionals and subcontractors deliver work with precision, care, and pride — whether it’s a small repair or a full property refresh. We don’t charge VAT, offer competitive pricing, and work weekends to fit your schedule. Backed by strong reviews and partnerships with estate agencies and commercial clients, we’re here to raise the standard — one job at a time.
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