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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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25 years carrying out an array of handyman/maintenance work, relaxed manner with care and attention to each job. Proactive communicator.
Property DMR Services Ltd is a high end building company that specialises in refurbishing properties in and around London. All our work is insured & guaranteed. We undertake Basement Construction & Waterproofing, Extensions, Loft Conversions & Renovation plus Bespoke Joinery & Shop Fitting
Matthew and his team did an amazing job and completely transformed a tired 1st floor maisonette into a luxurious looking property. Throughout my 'mini' project Matthew remained calm and patient, even when i informed him that i preferred to have my Gas Safe Engineer to work on the Plumbing and Gas boiler. he just adjusted his quote reflect this. He also suggested 2 weekly installation payments so that I could see the improvements before paying. I will definitely use Matthew again for any future projects.
Quigley's
House Extension
Trusted local builders. Many work undertaken and all completed. Extentions, Bathrooms, Kitchens and all other aspects In building construction.
we are a small family owned firm, trading for 28years in the dundonald , Belfast county down , we specialize in building maintenance and repairs, extension, garage,renovations, home improvements, and all small house repairs. we guarantee all our work,
This man came out and priced my work. I accepted his price but on the day he was due to start the work he rang me saying his platerers wife was taken into hospital with food poisoning. Never heard from him again.so I am now looking for someone myself to plaster my ceiling.
Marius Mailat
House Extension
All kind of building works that includes:chimney removal,flooring,window and door,kitchen fitting,painting.tiling floor and bathroom.
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All our work is carried out to a very high standard,Extension's,Kitchen's,Bathroom's,Carpentry,Plastering,Painting and Decorating. Please visit and like the facebook page where you will see all of our work Transform Your Home Ltd many thanks.
At Cymraeg Construction, building work has been at the heart of our family for generations with skills, knowledge and training passed on from one to another, even in the day to day running of the business we can call upon over 40 years experience from my father who is an integral part of the company and has made us what we are today with a passion for quality that shines through on every job we undertake. Covering all of South Wales, you can be sure to rely on us to undertake any project you may have from conception to completion, we can take care of all aspects of the build including planning and skilled tradesmen in all trades, let us deal with all the complications and timings as we project manage the process to ensure everything is done correctly and to schedule all while keeping you informed every step of the way. Please feel free to contact us for a free no obligation estimate on any work you may have. Cymraeg Construction.
Welcome to ross property repair family run business with 20 years experience in property repairs & maintenance our professional, efficient and reliable handymen are just one call away to fix all your �to do� list with no hassle involved. Ross property repair is the best solution for all your property maintenance needs, no matter how small or how big the job is. We serve both commercial and residential customers in Edinburgh, Lothian and Scottish Borders area. By choosing Ross property repair you are guaranteed: Job done at the highest standards on every visit Agreed appointments and timing followed No mess left behind when job is done You pay just for work done . We pride ourselves on the high standards out work is finished to . First class workmanship at affordable prices . Below I have listed some of the services we offer Letting agent and landlord services Rot and mould Mastic and silicone replacement Handyman services All aspects of joinery work Tiling Wet wall panelling Painting and decorating Small plumbing jobs Laminate flooring , carpets ,linoleum ELECTRICAL New sockets or extra sockets New light fittings Fit cookers Exterior garden sockets EXTERIOR Decking Slabbing Build Huts Fencing Build small walls Gutter repairs and cleaning Slate repairs Flat roof repairs SMALL JOBS Plasterboard repairs New toilet seats New door handles Shelving Cleaning services on request All aspects of gardening and much more, to much to list! ANY JOB BIG OR SMALL WE DO IT ALL We are FULLY INSURED
Liberty Renovation provides full renovation services on all types of buildings including offices and residential rooms. If you’re looking to change the layout, feel or purpose of rooms in your home or property, we can help to make your vision a reality. From interior, kitchen or bathroom design to the full makeover of your dream home. A little about us: We aim to provide a stress-free project, delivered in a manner that I am confident will exceed your expectations. Our customers often comment that every colleague they interact with is approachable and cheerful; we find that promoting a positive attitude always helps projects run smoothly with good communication throughout. Main work we undertake limited company .Kitchens .Bathrooms · Refurbishments Extensions · Loft Garage Conversions · Plastering/ Decorating · House renovations Thank you for taking the time to consider our company’s profile, I look forward to hearing from you Qualifications Designer engineer Interior designer 18th edition electrical
Would definitely recommend. Quick service and very professional and friendly.
R&D CONSTRUCTION IS A PROFESSIONAL DESIGN AND BUILDING COMPANY SPECIALISING IN ARCHITECTURAL DESIGN AND PROJECT MANAGEMENT FOR RESIDENTIAL AND COMMERCIAL PROPERTIES, ALSO A WIDE RANGE OF CONSTRUCTION, DEVELOPMENTS AND REFURBISHMENTS. We Carry out all type of construction and to us no job is a small job and by that we mean we would be happy to take your various jobs in our hands. We provide the following list of the building services: New Build Property Refurbishment Loft Conversion House Extensions Flat Conversion Driveway & Patio Bricklaying & Re-pointing Kitchen & Bathroom Roofing & Guttering Plastering & Tiling Carpentry & Joinery Painting & Decorating Plumbing & Electrical Central Heating & Under Floor Heating Design We believe a great design is simple and not only how it feels or looks but also how it works. We provide Architectural and Interior Design and Engineering Services: Initial Concept Design Basic Drawings for Planning Application & Application Management Existing & Proposed Floor Plans, Elevations and Sections Site Plans and Block Plans (OS map/ Location Plan) Detailed Architectural Design 3D Concept and Visualisation Design Interior Furnishing, Materials & Fabrics Lighting Design Bills of Quantities (BOQ) 3D Interior Visualisation Design 3D Interior Visualisation Design Building Control package Drawings & Application Management
Expertly constructed from the team that has just completed the YOTEL Edinburgh design and build project on Queen Street which you can go to observe for yourself. To be trusted by large commercial corporations and deliver a high standard of work in a time sensitive manner, we will surely be able to deliver a project you will be satisfied with! With over 30 years of landscaping and building experience enjoyed throughout the company, you no longer have to compromise quality. Be the envy of your neighbours and call the reputable company to get it done right the first time. We offer a full design and build landscaping function as well as a subscription service on fortnightly (or monthly) garden tidy maintenance as well. Not only can we transform your space, but keep it looking new year round! With highly skilled staff and constant support a text away, we are here to make your service experience as pleasureable as your new extension, patio, driveway, or fence is going to look.
I’m a trusted and experienced builder based in Camborne, Cornwall, offering a full range of property renovation and building services. Whether it’s a small job or a full-scale renovation, I take pride in delivering high-quality workmanship with a professional yet personal approach. From start to finish, I’ll handle every aspect of your project, ensuring the process is smooth and stress-free. All work is fully guaranteed, giving you complete peace of mind. I know that not everyone has experience with building work, and I believe you should never feel in the dark about your own project. That’s why I take the time to guide you through the process, explaining each step clearly so you always know what’s happening and why. I’m known for my reliability, attention to detail, and commitment to customer satisfaction. With competitive pricing and free, no-obligation quotes, you can trust that you’re getting great value as well as top-quality results. Get in touch today—I’d love to discuss how I can help bring your project to life.
I cannot praise Ryan enough, he has been very quick in responding to my e-mails, the work started on time and finished on time. The standard of work is excellent and nothing was too much trouble. I would definitely recommend Ryan and already I am planning to use him again for our next project.
Large and small jobs undertaken to a high standard . Brickwork , groundworks , extensions .
We are a reliable team of builders with lots of experience and knowledge on the most of the construction industry #Gardening #House extension #Fencing #Paving #Painting AND MANY MORE JUST LET US NOW WHAT YOU NEED AND WE GET A SPECIALIST TO SORT IT OUT FOR YOU. THANK YOU
Costel Prodea, provided a very good service. His team were well organised, on time to start, and completed their tasks speedily and correctly. The job was completed, within Costel's, specified pricing and timing. We, would recommend Costel Prodea, to others for fencing jobs generally.
Erne Property
House Extension
At Erne Property, we believe that every project is an opportunity to build not just structures, but lasting relationships. With our dedicated team of skilled professionals, we deliver high-quality craftsmanship and personalized service tailored to your unique vision. Whether it's residential renovations or commercial builds, we prioritize your satisfaction and the integrity of our work. Let us turn your dreams into reality.
We specialise in all aspects of plumbing and joinery from first fix traditional roofing to second fix internal joinery. We Also cove domestic plumbing and maintenance.
Martin went above and beyond to make sure we were happy with this install, also left the area as he found it! We will definitely be using him again future.
Rated People
House Extension
Loft conversion specialist, with 25 years worth of experience.
Hi everyone , thanks checking my profile I’m Vas , have more than 10 years experience in construction I got level 3 diploma in carpentry, my main job is carpentry, but being in the industry so long I also can do handyman, fencing, ground work and foundation, decking, etc j
Brilliant workmanship , did exactly how we needed the shelves to be made. Highly recommended
Future Structural Solutions is a building company based in East London. We specialise in all types of structural repairs; installation of steel beams (RSJ's), basement waterproofing systems, membranes and slurry; roofing and all types of general building work
The company was extremely helpful and considerate regarding our project. They demonstrated a highly professional approach to the work and provided excellent guidance on our options throughout the process. The job was completed exceptionally well, and I would highly recommend the company.
Ben was originally due to visit the installation in order to provide an accurate quote but couldn't make the appointment so gave an acceptable quote without viewing the site. The work was carried out on a Saturday and Ben honoured his quote. Communication was very good and I wouldn't hesitate to use his services again.
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