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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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Hello, we are Trader Brothers Ltd. We offer the highest quality service at a competitive price, our staff have several years of experience and are here to help and advise you to convert your house into the home you always desired. To book in for a free quote you can contact us via email or mobile and we’ll get back to you as soon as possible. Services Trader Brothers offer: Painting and decorating General and bespoke Joinery Kitchens and Bathroom specialist Flooring and wall isolation All aspects of flooring: laminate, tiles, hard wood
Arrived at appointmented time, with all necessary precautions taken during survey of job. Estimate was a fair price. Detailed and professionally prepared.
Advanced construction is a small company based in Iver Buckinghamshire. We have been trading since 1992. We specialise in all types of building works. New build houses/ Extensions/Conversions/Refurbishment We all specialise in all sorts of landscaping ie patios-driveways We have our own plant .mini digger’s and dumpers etc. We quite often dig foundation and driveways for people, even if they want to carry on and finish their selves. Same goes for extensions We do all ground works, build shell and put roofs on, then client may want to take over at that stage. We are pretty flexible. We have lots of jobs all over which can be seen in person. At least by this you can see the quality of finish And even meet the previous clients. Our website is Advanced Construction Iver Ltd
Extremely happy with the work carried out. Very professional, thoughtful and tidy team. Would highly recommend.
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.
LS Electrical is a small independent company which takes pride in all of its works no matter how little I have now expanded and have a couple qualified electricians in house so can now compete on bigger projects and also on 1st fix wiring wire at quicker speeds Since above I now have a full refurb team and can manage all sorts of refurbishment works from kitchen fitting to all building works Driveways to making wood doors I have now been trading 5 years and have confidence in my team of trades people to produce 5 star quality works
We cover carpentry, joinery and refurbishments and offer a full range of services, ranging from small projects to major work. Our work is carefully carried out professionally and with great care, also striving to produce the quality you desire.
Did a great job. Fixed my kitchen cabinets to the plasterboard wall and now they are sturdy. Will definitely recommend Winston’s services.
My self and my workers have a nice way of working with clients we’re friendly polite and very clean and respectful of other people homes as we too have lovely homes . We work hard to keep clients happy and resolve problems that come there way through building projects. We also can show many recommendations from our own neighbours to people we have never met . Many thanks mark
Mark was very responsive and really helpful and informative when providing a quote for some underpinning and structural repair work. Would definitely recommend.
We specialise in general building: Landscaping Stone works Brick paving Brick work Plumbing & Heating Damp proofing Extensions Loft conversions
Turned up but never sent quote as promised I put a low cost because I never had an idea of what the cost should be I was certain a tradesman would tell me the cost
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.
I primarily work on all aspects of kitchen and bathroom fitting from fitting to services. However I have a long history of multi-trade work having completed high spec extensions throughout the years, no job is too small. I carry out property maintenance which involve carpentry plumbing and electrics as well as refurbishments all within the latest regulations.
Pleasant polite tidy, carried out work quickly and efficiently
www.cgtbuild.com We are c g t building services We are a highly skilled, family run business with over 30 years experience in the building and landscaping sector. We pride ourselves in giving 100% customer satisfaction and can guarantee competitive prices against leading organisations, and have a solid team of dedicated and experienced tradesmen, producing quality, skilled craftsmanship, and delivering projects both on time and to budget. Our combined skills mean we can offer a full range of building services from fencing and decking, to extensions and refurbs. as well as having a fully licenced fleet of waste removal vans, offering a fast, and reliable waste clearance service at very competetive prices. so whether youre looking to extend, restore, or refurb, or are in need of a new kitchen fitted, or youre looking to clear out your garage or landscape your garden. Theres only the one team you need. The C G Team
The team did a great job helping us get new kitchen doors, panels and plinths in. They also helped to get us ready for our new worktops to be measured up and our applicances reinstalled once the new worktop was fitted. They were really helpful and worked around the changing delivery dates from our suppliers
Next Level bricklaying services with an exceptional level of quality workmanship and service.
I am delighted with the quality of Lefter's work. The job was a demanding one, and he responded to all the challenges. He is a perfectionist who works very hard. He is very easy to talk to and happy to explain how things are developing. I would recommend him highly.
I'm the owner of the company, with 25 years in the property refurbishment services with multiple qualifications to cover most trades. I just moved locally to the area, so I'm back with rated people to get quality clients.
Came out the same day and resized kitchen work top would recommend
With over 10y on to construction industry,we operate a small family business owner aimed to provide an high quality services across the trades we offer, We have over 5y experience doing painting and decorating works leaving behind smile and the best experience, From Tv wall mountings to removals, storage ,and refurbishment,we cover all aspects of works . For a friendly man part of the team on site ,please don’t hesitate to get in touch with us..
Fantastic experience - really lovely guys, great job and super reliable and professional. Look forward to working with them again soon
Fully qualified level 3 Site joiner/ carpenter Through City and Guilds. In the trade for many years, with plenty experience & knowledge due to the passion and work ethic for the job. Due to high demand from previous clients, CFL Joinery is slowly introducing other Construction Trades within the business, such as electrical installation, Plumbing & Gas, Bricklaying, etc. All types of work, We are happy to help! I can guarantee that the job needed to be complete will be done to high standards, furthermore beating many quotes you may have already been given. We are a very friendly and understanding Business and if the job needs to be done ASAP, We will do everything we can to get this done. Any further questions, please do not hesitate contact via call or email :)
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.
With over 40 years combined experience in the building trade our company has grown and build an amazing portfolio of jobs and customer clientele. We cover all aspects of building and landscaping no job is to small and no job is to big we can handle them all. Our company cover everything from start to finish on all jobs so no need to worry about sorting anything, making it a smooth process for our customers
Domestic and commercial properties maintenance and renovations
E SAINT GEORGE Ltd is a London & Essex based construction company. We specialise in all aspects of Home Improvements and strive to provide excellent work in order to achieve each individual clients vision. Our Customer Focused Service, ensures that we Communicate-Resolve-Produce superb tailor made projects. E SAINT GEORGE Ltd has an outstanding track record for delivering projects on Time and on Budget. All of our surveys are thoroughly analysed and concisely priced. Our pledge is to deliver all clients with Flat-Rate Costs for all of our contracted services. At E SAINT GEORGE Ltd, we value our highly-skilled team members as the core ingredient to completing every project successfully. HOME IMPROVEMENT SERVICES: - Kitchen Installations - Bathroom Renovations - Flooring (Laminate/Wood) - Tiling - Painting & Decorating - Structural Engineering & Design Services BUILDING WORK SERVICES: - Loft & Basement Conversions - Extensions (Single/Double) - Rendering / Plastering - Patio & Driveway Installations - Gardening & Landscaping - Gas Safe Services - Electrical Services (NICEIC) - Handy Man Services
Endrit and his team were wonderful to work with - friendly and professional and nothing was too much trouble for them, despite me changing aspects of the kitchen renovation and install during the process. They went above and beyond to ensure that everything was perfect and that I was happy with all aspects. My new kitchen looks amazing and I can't recommend Endrit and his team highly enough - I have already recommended E Saint George to friends and will be getting them back to install my bathroom.
John McKinney Builders have been building on over 50 years of experience, established in 1970. We carry out extensions, loft conversions, refurbishments, garage builds & conversions , kitchen fitting , heating etc. From planning to completion. Our quality of workmanship & finish is second to none, no snagging needed or call back. WE SPECIALISE IN THE INSTALLATION OF RSJ,s
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