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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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Hi im James I run an established Garden an Landscaping company, I have 17 years experience, I Design and Build Gardens. take a look through my photos to see what I do. I pride myself on great communication skills. Based in North London
James and his team were brilliant - punctual, neat and very nice, and they have transformed our back garden with great work and lovely ideas. I would really recommend them.
A professional qualified insured family run business who puts their customers first
Friendly, professional, knowledgable, good job done
All brickwork,slabbing,steps,monoblocking,fencing & drainage.All landscaping and garden design.I have 40 years of experience,and have never left a customer unhappy with my work.I will offer the best advice for the job in hand.
James was great. Our fence was wrecked in a storm, James came out day after logging the job, turns out we needed a customised fence panel. He arranged this and had completed the job within 48 hours, also tidied up and removed old fence. Would definitely hire again!
My name it’s Cris. I am a person with many qualities in handyman.What a handyman means? A handyman, also known as a handyperson or handyworker, is a person skilled at a wide range of repairs, typically around the home. These tasks include trade skills, repair work, maintenance work, are both interior and exterior, and are sometimes described as "side work", "odd jobs" or "fix-up tasks". For me a handyman means the person who helps the people who are in need or not having the necessary training for that thing and at the same time the one who later gives a smile to the people's face. For this, please contact me in any need you have
Christian and his team were friendly, courteous, and did a great job at the quoted price with no surprises.
We have 45 years experience between us in the construction industry and 25 years experience in all types of roofing including rubber, fibreglass, slate and tiled roofing. Chimney removals, facias soffits and water goods. & fitting vellux windows. We also have 25 years experience in groundworks., landscaping, operating plant. bricklaying, rendering. we specialise in new builds, extensions, renovations, loft & garage conversions & damproofing. We have a lot of experience in sourcing properties to renovate for resale and rental. We cover all aspects of home improvements.
Excellent service. Got the job done well and very professional.
Dear Customers IE-DESIGN with years of experience offers interior and exterior work such as painting and decorating.We also undertake and manage landscaping and gardening services of any kind. Additionally our experience leads to the unique 3D projects if required. We can promise a competitive price and perfect finish as Customer satisfaction is at the heart of everything we do.
Hi, I am Stefan, and I have three decades of experience as joiner, specialising in wood flooring and tiling, doors, wardrobes, decking, bathroom fitting and refurbishment.
CAN Construction ! ALL aspects of R.S.J. Work. Fabrication.Alterations,Steel and lintels. Knock through specialists. . FULLY INSURED. We won't let you down.
Family run business, with thirty years experience in the industry. We are a friendly and reliable service.
A good job, expertly carried out, but not quite up to our expectations with clearing the debris. It took us two days to get the garden back to normal. The second phase of the order is yet to be done and I’m sure that they will satisfy our requirements.
At O.B.Build we want to make your home look amazing inside or outside.We take pride in our work and can handle any job or task.We are clean tidy, polite and always deliver a quality finish.
Brilliant refurb of 2 bedroom flat, timelines were tight but John delivered to great standards on time! Job included damp control, relaying floors, and painting/redecorating. Would highly recommend. Thank you John!
No job is too small By choosing our company you choose professional service and fast realization time. We are local Edinburgh based with over 10 years of experience. We love what we do and we are proud of providing excellent service. Our clients are number 1 in customer satisfaction. We always ensure high quality finish which meets your requirements.
I hired Dream Renovations (Patryk) to fit vinyl plank flooring in my shower room. Great job: quick and tidy. Following that I hired him to repair a collapsed ceiling. He turned up when he said he would, and did a great job: plasterboard, plastered, and painted. If I need any work carried out in the future, Patryk will be the first person I will contact, and I am happy to recommend him to anyone who needs work done in their home.
Whether you need a small job done or would like to add an extension to your home, we do it all, big or small. We have been on the market for over 18 years and have hundreds of happy customers. We are committed to delivering superior quality work and ensuring customer satisfaction every time
Very quick response and excellent communication re quote and timeline. Valdas arrived early today and did an excellent job. So much care taken to protect our floor and work surfaces. Left beautifully clean and all rubbish removed. Would definitely recommend and will use again
Hollywood joinery is a friendly company that specialises in cabinets an fitted wardrobes an all other joinery have been in the building trade for over twenty years an have experience in many other aspects of the building trade
Perfect job. Quickly done, great communications, reasonable price. Highly recommend.
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
KL joinery services offering all types of joinery work
We were looking to change 7 internal doors and Kieran was first to reply , he came to see then he sent us the price for doors to buy and deliver and fully installed , when we accepted he came out on time and finished the job in one day and we are very happy with the work , thank you again Kieran .
I represent a company with a strong and established presence in the market. Specializing in bathrooms, kitchens, and comprehensive renovations of real estate and apartments, we have 33 years of experience in delivering high-quality projects. In addition to renovations, we also offer services in loft conversions, new extensions, and other general building works. Our expertise and track record ensure that we can handle a wide range of construction needs with precision and excellence.
Andrew excellent job removing an old bathroom and installing a new walk in shower & toilet. A good job well done quickly with plenty of updates
I am an experienced builder. i have built my business up through a good reputation. I have 21 years of experience within the building trade with qualifications within all aspects of plastering and rendering. I have a small team of skilled tradesmen, including roofers, carpenters, and plumbers, which enables us to take on a wide variety of jobs and complete them to a high standard.
Excellent work. They really go the extra mile to make sure the work is done right. Very happy with what they have done for us. I've already recommended them to people and I will 100% use them again.
We are a reliable and successful company and we provide the quality and the qualification of the work and product which we are doing for you .Our motto is, my customer my boss. We coming for a long journey experience working of 20 years working experience in Spain,Italy, United kingdom and Romania of landscaping industry and inside and outside house design of isolation,consolidation, any work of tiles or painting. We coming with the real quote of the work we try to be in competition with the construction quotations and to make our clients to make our publicity for work and quotations
Alex visited me for a quote. One member of his team came on the same day and did the front garden quickly and efficiently.
Bedfordshire based carpentry and property improvements company . offering carpentry internal and external , as well as having a strong diverse team of different trades operating within the company , all aspects of building work taken on board and a professional job from start to finish .
Delighted with job Dave did raising my summerhouse to put sleepers underneath and increase airflow.
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