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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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A professional service with years of experience, you can rely on us to get the job done to perfection and in no time at all.
Beni redid the floor in my Borough flat. He did an entire hallway in two days and at a good price. Highly recommended!
NEPTUNE BUILD LTD
House Extension
Small is beautiful We are a small, independent company based in East Sussex specialising in building extensions and refurbishment. The majority of our buildings are bespoke and tailored to suit the needs of individual clients and to fit particular situations
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Nice clean job at a good price however did not return to complete 1 remaining door even though I paid in full. Disappointed as Joe was a very nice guy.
Grassby Construction LTD
House Extension
Providing strategic planning, design and building services for private construction projects to ensure timely & cost-effective completion. Specialisms include: extensions, new build, external works and hard landscaping.
We are a long established company and pride ourselves on job satisfaction, we can also provide references from previous customers and also photographs of previous work all are work is fully guaranteed
James did a fantastic job. He refitted an existing bathroom and created two new ensuites, and also built wardrobes and panelling in our hallway. He is reliable, trustworthy, friendly and his work is of great quality. I fully endorse and recommend him- he turns up as expected every day, communicates well and delivers brilliantly. We are quite happy for anyone to come and see his work .
Razas Direct Ltd. is a small friendly company providing home and office renovation and garden landscaping services ideal for homeowners, business executives and investors. With our services you will be able to change entire look of your home or a garden.
Denis did a fantastic job. He arrived on time, he is very knowledgeable and knows his craft, worked outside in the cold and finished the job efficiently. We are so pleased with his work, railing looks good and even the neighbour was impressed and said how nice it looks. We will definitely ask Denis again for any future building works and I would not hesitate to recommend him too.
B J ROSE BUILDER
House Extension
Established family run building business for over 35 years. Specialising in everything from garden walls through full new build. Fully insured.
We at M.B.Contracts Glenavy Ltd have over 20 years experience in the construction industry and have achieved preferred status with a number of industry contractors. M.B.Contracts has a 100% C.S.C.S policy and fully committed to the continual development and training of all employees. (OUR AIMS ) To focus on the safety of the work force , other workers and the general public . To work with clients and there architects to ensure a full understanding of there needs . To remain mindful of the need to communicate with clients throughout the course of the project . To use skills and expertise to provide a high quality finished product . Health & Safety M.B, Contracts most valuable asset is its staff and its top priority to ensure their safety and by striving to raise awareness off health and safety throughout our business . ( OUR SERVICES ) New Builds ie Commercial and Domestic Extensions and Refurbishments Demolition Works Earthworks and Site Clearance Retaining Walls and external Service yards Drainage ,pipe works and associated works External works including block paving , special concrete finishes and Edging Landscaping and Driveways
Did a very good job quickly and promptly and kept me informed of start times etc
Initially looking for some advice A&D patiently talked through options, planning & the hire of an architect. If/when I go ahead A&D would be a first choice.
The Cubiq Construction team brings over 25 years of industry experience. Our SMSTS-qualified managers are skilled in delivering high-quality projects, ensuring client satisfaction and peace of mind. We are able to take on every aspect of all kinds of works, from surveying to design to structural calculations through each construction phase. What we offer is beautiful projects at attractive prices with a high standard of finish. The way we deliver is what makes us to stand out from other companies and and makes us a leader in the field. We are unique in the structure of our business, which has been formed to maximize quality, speed and efficiency for our clients and teams. We are committed to delivering on these aspects and our company’s vision. Highly professional services. Using the latest mechanical equipment. British standards high quality materials We provide the most reasonable prices. Following the global design. Undertake to meet the deadline.
the owner of j and I roofing . I have been in the roofing trade since learning of my grandfather as a young boy first climbing ladders I am a dedicated precise and trustworthy tradesmen with a group of five men working for me all polite with a great work ethic. I started my company back in 2015 and have been persistent with my jobs with customer satisfaction always kept at a high standard.
Very pleased with the work done, entire large garage roof replaced, Jordan and the team were very professional and hard working, got the job done sooner than expected as they worked longer days to get it done for us. Jordan took time to listen to our needs and our budget and did his upmost to keep the costs very affordable, without sacrificing on the quality of the work. Each day they ensured everything was clean and tidy. Would highly recommend and definitely use again if needed. Very happy customer
I’ve been in the building trade for over 20 years and would like to think I’ve gained knowledge and experience in most aspects of domestic building i always like a challenge and try to make people’s concepts a reality I will always try my best to give a fair price and always adhere to time scales my main background is general building work .but I have a host of sub contractors working with me so we can take on more or less Any work you may require
Fantastic service from Paul. He arrived on time, was very friendly, and completed the job to a high standard. He was always Prompt & Professional, his pricing is very competitive. I highly recommend and use him again.
Norton stone
House Extension
Third generation stone mason. Followed in grandfathers footsteps who was also a Master Builder. 25years experience, following a 7year apprenticeship in building and stone masonry on church restoration. Specialising in bespoke restoration and building.
Reliable builder with over 20 years of experience in domestic and commercial building.
We are a team of highly skilled individuals, with a great sense of professionalism and integrity. Our purpose is to deliver the transition from our customer's vision to reality and strive to bring satisfaction and joy with the results of our work. We aim to offer the best possible service while building trust with our clients. Having over a decade experience in the building industry, gives us the possibility to be quick, flexible and efficient.
M & C Landscapings and Home Improvements is a business by a professional. with years of experience. Always looking for new designs and products for your garden and home needs. Whether you need garden maintenance, a new designed garden 100% satisfaction.
Work was done to perfection I am so happy with the decking polite and efficient service I would highly recommend
We are a small team of 12 covering all trades. We have been running for 7 years and slowly getting bigger. We are interested in giving free advise and a free quote to any project large or small. Fully Insured and Qualified team for all aspects. building projects Lenny
As a tradesman within a small family business, I have a unique blend of technical expertise and hands-on renovation and refurbishment skills, I deliver exceptional results for discerning homeowners. My dual background in software engineering and construction enables me to tackle both traditional renovation work and modern home technology integration. Core Expertise - Complete property renovations - Full or partial refurbishment - Kitchen and bathroom installations - Carpentry and joinery - Furniture assembly and mounting - Professional tiling and plumbing - Home network and connectivity solutions Professional Background As a property renovator, I bring 17 years of technical engineering experience to every project. My training covers carpentry, joinery, kitchen fitting, tiling, and plumbing. This foundation, combined not only with my field service engineering experience at Virgin and BT Openreach, but also, my extensive software engineering background allows me to approach each project with both technical precision and practical know-how. I enjoy working with my hands - fixing, mounting, and assembling, as it helps clear my mind and keeps me active. Equally, I thrive on using my analytical skills to solve complex challenges and devise innovative solutions. Whether it's a technical challenge or a practical task, I bring efficiency to every project. I'm looking forward to helping you.
Antoine kept me informed about when he would arrive. He carefully prepared all work areas and wore protective slips when walking around my home. He was courteous. A job well done - thank you, Antoine.
Sole Trader in 2008, now become Limited Company!(summer 2016). Starting as a Horticulturalist, now we are undertaking Landscaping, garden contracts and al aspects of building works. Any aspect of your Property or Garden we can undertake! FULLY INSURED and carried out by experts there is no job big or small we cannot do. (Bigger works and at your request we can amend our insurance details to suit your project requirements as well as reassuring you!) We have licensed and registered utility services (New to 2018!) We can't wait to do Great things together....
I am very happy with all the work that has been done so far. I have entered contract for regular maintenance with the company. Mr Scot is very professional and courteous and one gets more then one pays for.
York groundwork solutions offer a wide of skills to do your chosen project from foundations, drainage, paving, Tarmac, 360 hire, landscaping. We offer competitive prices and all our staff are cscs card in health and safety and cpcs trained.
They worked hard and finished the job on time. There were some unexpected costs but they did a very good job.
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