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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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Our team is dedicated to provide very good service and professionalism. We deliver a full range of service and product solutions to businesses, commercial or residential jobs. let us assist you for design, installation, maintenance and building services.
Seby and his team did a fantastic job refurbishing my bathroom they started and finished on time, even completing a few additional tasks at no cost. Would definitely use them again
PADDICK ENGINEERING LIMITED
House Extension
Established in 1981, Paddick Engineering is a family run business with over 85 years of combined experience in Architectural, Civil and Structural engineering design across Yorkshire. We help homeowners, builders, and developers navigate structural and planning challenges, from removing load bearing walls to full home extensions design and new builds. LABC Partnership Award Winners (2015) Structural Calculations & Design Architectural Drawings (2D & 3D) Planning & Building Regulation Applications Home Extensions, Loft & Garage Conversions New Builds, Layout Changes & Interior Design Domestic, Commercial & Industrial Projects We offer clear advice, quick turnaround times, and handle council submissions on your behalf, making your project as smooth as possible from start to finish. Friendly, no obligation advice Visit our website to see our gallery and services
Mp roofing services take a friendly and professional approach to all customers and provide free and no obligation quotes whatever your job entails ,we are highly recommended in the local area,we also are highly recommended on other sites ,our regular jobs span from general gutter repairs to new flat and pitched roofs , new facial soffits and guttering , pointing repairs and Complete roof overhauls . Thanks for taking the time to read our introduction and look forward to hearing from you .
Did a great job on my roof. Cleared all rubbish and kept working until the job was completed. They did the job at a very fair price.
I have been an electrician since 2008, I do have my 18th edition electrical installation certificate, and I can sign off electrical work. I am a very creative electrician with many great ideas on what will look good and what will look Great.
Dev was very personable and did a fantastic job. He left the place cleaner than when he started and managed to correct a number if short cuts taken with the previous hood installation. I would definitely recommend if you are looking for an electrician
Verdant Building Services Ltd
House Extension
We are Verdant Building Services Ltd an experienced friendly building and maintenance company, I would like to take the opportunity to thank you for looking at our bid, your business means a lot to us we want to offer our best services at competitive prices. what this simply means is that we will provide someone, whether Builder, tradesmen, carpenter, painter, and decorator, or even a handyman to do all work needed for your project all at a competitive price. We specialise in commercial and property building and maintenance, no matter the job size we can do it to a high standard. We offer our maintenance services 7 days a week, early mornings, and late nights. We have a combined 25 years of knowledge in the business and leave our customers 100% satisfied. They always come back to us. We want to take on your project. What does this mean for you? • A great building and maintenance team who will put 100% in any work carried out • At a great value • With minimal effort on your part • We work to your budget and time realistic schedule We always send one of our trusted tradesmen to have a look at the job and have a chat about your budget. Have a discussion about what you would like the end result to look like. You will receive more information on us and meet the person who will be managing your project. So choose us and you will not regret it. Thank you
Stefan Builder's
House Extension
Hi I’m Jake I’ve just started by my self was originally joiner for a building firm. I have 5 years experience which over the year I’ve done a large variety of projects from kitchens to 1st fix, 2nd fix, windows and doors there’s not a part of joinery which I can’t do.
London City Roofing & Renovations ltd is an established and trusted company with over 20 years experience, offering all aspects of roofing and building services. We are based in Wembley (London) serving all of London and surrounding areas within 100 miles.? We pride ourselves on our punctuality and quality workmanship, offering a prompt and professional service with experienced and expert staff. We guarantee a friendly, clean and tidy service with all work being to the highest standard. We are fully insured and all work is guaranteed. All our tradesmen are experienced and qualified in their respective trades. We specialise in the following: Roofing services: UPVC Fascias & Soffits Cladding Guttering Bargeboards Flat Roofing Chimney Repairs Tile & Slating Work Re-Roofs Lead Work General Building Work Fibre Glass Roofing Double Glazing Building services: Home improvements Kitchen Fitting Bathroom Fitting Extensions Loft Conversions Garage Conversions Bricklaying Plastering Comprehensive driveway and paving service, including: Driveways Drop Kerbs Patios Paths Block Paving Concreting Tarmacing Car Port We offer free quotes
John and the team did an outstanding job. It was easy to work with John and he was very knowledgeable, and provided very sensible advice. Other people quoted work which was over-the-top or wouldn't have solved the problem but John got right to the issue in a no-nonsense way. Quality of the work undertaken was very good, considering the age of the building and complexity. Would recommend.
With over 20 years experience in all building aspects. We cover everything from the small tedious jobs to large extensions and builds. Family oriented company with great understanding to what customers needs are. Plymouth and surrounding areas covered.
Very pleased with APEX, doing a great job, near to completion, very glad I brought them here to sort my unfinished kitchen and bathroom extension. Family business, I can't recommend them enough. They've taken on my ideas, and carried them out great, I certainly would recommend them to everyone.
House extensions: An extension is perfect for anyone who is looking to expand any part of their home, including single or double-story extensions, kitchen extensions, side extensions and conversions. Whether you wish to create additional space, or simply want to install a state-of-the-art new kitchen to bring your home into the 21st century, our masterful design team will work closely with you to achieve your desired home extension, we will take care of the project from early stage to submit drawings, obtain planning approval all the way to provide building control certificates. Refurbishments: We take full control of your project, assisting you with designing and sourcing crucial elements of the required work. Whether it be installing fixtures or fitting your doors and windows, giving sound advice on anticipated additional value to every element of the work. Bathrooms and kitchens: First Stone Property offers everything from: Upgrading your shower or toilet Installing a bathroom or kitchen from scratch Replacing your existing kitchen or bathroom suite We will work with you to design your perfect space, from layout and plumbing to fixtures and fittings, you will be given a fully coasted solution before work begins, making sure there are absolutely no hidden surprises along the way. Loft conversions: Loft conversion can have a huge impact in unlocking the hidden value of your home. Loft conversions create an entire new living space from something that was once neglected. We can convert your unused loft space into a liveable area, such as a bedroom, office, living room or play area. Loft conversions are a great way to add extra space and value to a property and, most importantly, they can be a very affordable investment.
Welcome to Okaeri Need a new kitchen or bathroom designed, supplied and fitted? We are your one-stop shop for everything Kitchen, bathrooms, wet rooms, en-suite bathrooms, shower rooms and disabled bathrooms. We guarantee to beat any genuine quote. We offer a FREE design consultation where we discuss your bathroom needs in the comfort of your own home. Here we design your perfect luxury space based on your likes and dislikes and work out costs based on your personal budget. We use our CAD design program to create that perfect space that you require. This will help you visualise your new bespoke kitchen or bathroom before it's built?. We supply the materials and accessories based on the design. We take care of all deliveries and logistics, so everything is in place exactly where it should be and ready for each of the stages of the installation. We handle everything regarding the full installation of your new kitchen or bathroom including all the trades necessary to complete your project and any remedial building works.? Plus you have the guarantees and peace of mind that the whole installation is being project managed by us from start to completion. Our one-stop shop kitchen & bathroom installation services are very often selected above others in South Yorkshire because of our great aftercare attention, and customer service values, and that fine attention to detail that's an element most of all missing in today's society. We offer quality tradesmen, fantastic products at great prices and a project management program that brings it all together, it doesn't get much simpler than this! Choose Okaeri for your next kitchen or bathroom.
Gareth did a fantastic job bathroom looks great , left no mess and was very polite
Shoreline Construction is a reputable company renowned for its innovative designs, meticulous attention to detail, and effective problem-solving capabilities. With a solid track record of excellence, our primary objective is to surpass the expectations of each customer we serve. Our team is dedicated to delivering high-quality construction solutions tailored to meet the unique needs and specifications of our clients. We specialize in a wide range of construction projects, including residential, commercial, and industrial developments. At Shoreline Construction, we prioritize customer satisfaction above all else. We strive to foster strong relationships with our clients by providing transparent communication, reliable project management, and superior craftsmanship throughout every phase of the construction process. With a commitment to integrity, professionalism, and excellence, Shoreline Construction continues to set the standard for construction excellence in the industry.
A keen and conscientious young team who got the main job done in good style. To improve, maybe some attention to communications and the paper trail might achieve a more complete result. Very pleased with the end result though.
All plumbing tasks under taken. From dripping taps, out side tap installs, tanks overflowing, toilets not flushing. Fast reliable service guaranteed. 7days a week
Very helpful and knowledgeable. Definitely would use again.
We are a couple of higley skiled builders. No job is to big or to small for us. We are very polite. The client’s satisfaction is our main priority. Our company was stared from 0. We are hardworking and honest and have more then 10 years experience in construction i
Would highly recommend Adrian. He cared about his work, wanting to make sure it was done to a high standard. He was always on time, respectful, honest and fair with his price. Please consider Adrian when dojng renovations as I will be in the future!
Neil Gordon
House Extension
We are a family run business with over 50 years experience in the construction industry. All our work is finished to a high standard with an aftercare service to ensure the client is satisfied fully. Our services include extensions, bathrooms, windows, doors, electrical and plumbing as well as external works such as patio, fencing, paving, driveways, decking and landscaping. NLG Construction
Hi I’m Shaun from cbo property services. I have over 20 years experience in the building trade. There is no job to small for the cbo team.
I have around 15 members who work for you. Our Services are: 1. Bathroom Fitter 2. Builder 3. Carpenter 4. CCTV 5. Cleaner 6. Drain Specialist 7. Floor Fitting 8. Gardener 9. Handyperson 10. Loft conversion 11. Paint & Decorating 12. Plaster 13. Roofer 14. Tiler 15. Window fitter
Wasted my time , lied and did not show up , uses another email to reply [email protected]. Very dodgy guy . No good .
Lee Brickwork
House Extension
I have 40 years in the construction industry Have City and guilds certificate for brickwork City and guilds for plastering... And aquire 30 year's experience in paving...
Superior Build & Landscape
House Extension
At Superior Build & Landscape, we specialise in all aspects of bricklaying, hard landscaping, and extensions, delivering high-quality workmanship you can rely on. With a strong eye for detail and a commitment to getting the job done right, we take pride in every project—whether it’s a small garden wall or a full property extension. Our services include brickwork, patios, driveways, garden transformations, and structural builds, all completed to a high standard. We believe in honest communication, fair pricing, and leaving every job clean and tidy. Customer satisfaction is at the heart of what we do, and we work closely with our clients to ensure their vision is brought to life. If you’re looking for dependable, skilled tradesmen who take pride in their work, Superior Build & Landscape is here to help.
We like to take a personal approach to each job and customer, ensure that we achieve the highest standards of workmanship. All work comes with a 20 year guarantee. FREE estimates provided. Roofing Services Available : Full new pitched roofs (Tiles & Slates) Re-roofing and Refurbishment Flat Roofs - EPDM Rubber Roofs. Roof Repairs including Slate or Tile replacement/Felt repairs. Lead Flashings, Lead Gutters. Facias, Soffits and Gutters, Timber and PVC Boards, PVC Cleaning. Exterior Painting. Repointing. Dry Verge Systems. Torch on felt. Velux Window Install. GRP. Any Services not listed above, please contact for more information.
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