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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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We’re an established start to finish building company that pride our selfs on our professional nature and due care and attention to the customers needs, the company boasts professional trades in Bricklaying, Joinery, Electrics and Roofing. Between us we have over 55 years of experience in the trade and you will not be disappointed with our ambitions to please.
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Fully qualified carpenter/joiner for over 25 years. DBS checked. Full public liability insurance held.
Mercer construction completed my job perfectly. Matt arrived on time, had already started the job before I arrived. Great job, cleared everything away after. Would definitely recommend. Very pleased customer.
Drayton Property Services are a local family run business with over 50 years of experience. Our experience allows us to provide a wide range of services and advice, resulting in happy and satisfied customers. We aim to provide a top quality service, from a prompt response to your enquiry through to the completed works.
I will certainly be using Tom from Drayton Property Services again for future jobs and recommending him to others, very professional and friendly, did a great job and very fair price - great service!
L B ASHFIELD BUILDING SERVICES are a small family run construction business covering Norfolk, Suffolk and the whole of East Anglia, Specialising in Bricklaying, Extensions/New Builds, Groundwork, Landscaping, Property renovation/ Maintenance and much more. We believe customer satisfaction is key and provide a very high standard of workmanship on every job we do no matter what it involves.
Lewis & his team have been an absolute pleasure to deal with throughout the build. I've not been this impressed by workmanship, cleanliness and work ethic for a long time and I would recommend them to anyone going forward.
I've been working in the maintenance Industry for the past 19 years and i've worked for 6 different councils in London, I've been trading since 2012 with this company.
Outstanding work and highly recommend Lucky of A&L. Impressed with their professionalism, attention to detail and general tidiness. My large garden was overgrown and untidy and was pleasantly surprised at the work and outcome carried out by A&L.
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.
We manage new and existing buildings,a portfolio of renovations and refurbishments,tiling works,paintwork,kitchens and bathrooms are all part of some of the services we provide.We will get back to you with a detailed quotation,free of charge
Over 20 years' experience High standards of workmanship Fully qualified team of builders and joiners Associated with the Apprenticeship scheme of the Construction Industry Training Board Competitive pricing Free, no obligation quotation
Beautiful carpentry work , attention to detail is amazing, hes gone the extra mile to help us transform our home. Would recommend for all joinery work doors ,door frames, bannister, skirting, loft hatch, flooring and plastering. Very good price also. Very approachable with better ideas. Have recommended Tom to everyone I know!.
We are a company that has highly skilled qualified tradesmen in all services we provide. We currently have 2 companies under our umbrella: JTL Roofing & Cladding We specialise in all types of roofing and cladding, from flat roofing to tiled roofs, to zinc to industrial units. The team has got you covered! - JTL Fencing & Landscaping From domestic to commercial, our qualified team of fencers have been trained to the highest standard. Whether you need closeboard fencing to picket fencing, panel fence to security fencing, we have a solution for you. This company also specialises in building your perfect outdoor space. whether it is a patio or a driveway, new artificial lawn or a decking area. We have got it covered. All of their garden transformations are built around the clients requirements. JTL Group Ltd are committed to providing the best service, best quality of workmanship and best value for money in the current market. Get in touch now for a free no obligation quote, or just for a bit of advice. we are here to help!
James worked really hard and even mended our back gate for us even though we didn't ask him too, fantastic
Whether you want to install a new kitchen or your home needs urgent repairs, we’ve got you covered. Oliver with a twist home improvements, offers a comprehensive range of building services for customers in Leeds and the North east of England.
Very polite respectful men workmanship excellent only one criticism is Andrew needs to sort time management
I am an individual who prides himself on giving quality with reliability, with many years of experience.
The work completed as planned. Wayne is very considerate helped the lady tenant feel comfortable. I recommend him without any reservation.
Sjb building
House Extension
A professional team of bricklayers and extension shell builders. With over 15 years experience in building extensions and contract bricklaying. An honest approachable firm with full liability insurance for your peace of mind.
Russell did a lovely job replacing my garden wall. He was meticulously thorough and the wall is beautifully finished. I am very pleased with his work and wouldn’t hesitate to recommend him.
J S MULTIWORK LIMITED
House Extension
15 years experience. General building work. Plastering, rendering, screeding, tiling.
Really helpful, good communication as we tried to solve the issue etc. Very pleased.
We are family run business of specialist fit-out contractors based in North West London.
I booked Daniel to refurbish my kitchen & various other parts of my flat. He attended on short notice to discuss my requirements. He understood the brief & made useful suggestions. Over the course of 2 weeks he worked extremely hard, going out of his way to do a first class job. He was polite, friendly & professional. The quote was very reasonable & there were no surprises or extras. Most importantly the results exceeded my expectations. If you want someone who will take care of everything he's your man.
High quality of offered services, flexible and reliable builders just for you. We always meet the deadlines set with customers and make sure they are proud of work we've done. "Great prices and fast, quality work" - these words describe us accurately.
I cannot speak highly enough of the MBS team. They were everything one would expect from a service provider. They were punctual, polite, they knew what they were doing, the quality of workmanship was high, they were honest and their prices are fair. Most of all -they were reliable and clearly had our best interests at heart. I wouldn't hesitate to recommend them to any other prospective customers. Excellent!
family run business with over 20 years in the roofing industry we can meet all of your roofing needs from flat roofs fibreglass felt or rubber we do small single slate and tile repairs to whole new roofs all UPVC products dry verge systems dry ridge systems all types of guttering basically anything to do with your roof chimney repairs to lead work we do it all hard and soft Brick layer re-pointing /
I call Phill and sons 3 days ago to fix a leak on my roof. I did have the valley fix by an other roofer but they did not do anything just to take my money. I was a bit suspicious but I was happily surprise when I call Phill who repond to my call very quicly. He is very friendly and most of all very professional. So so please with Phill I'll will recommand him anytime.Thank you Phill for your excellent job
I have been in the trade for 30 years and have carried out a huge number of successful renovations from full house conversions to bathrooms, wetrooms, and ensuites. I have worked for years with a number of different experienced tradesmen and can complete any renovation job in a timely managed manner. I have a wealth of experience in hydrated screed and water underfloor heating systems, unfortunately, I see so many people getting this expensive process wrong.
Did a brilliant job! Thank you very much. Had a lot of compliments on our new bathroom with the excellent tiling.
Kaislar LTD
House Extension
We are trade within 20 years of experience refurbishment or new builds. FENSA 10 years guarantee Profesional insurance RIBA
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