Local house extension experts
Over 10,000 rated tradespeople
are ready to help you get your job done
Over 3 million happy homeowners
have found a quality tradesperson
Over 1 million ratings
with 88,000 5* ratings in the last 12 months
Join our group of happy customers
Thousands of homeowners, thousands of success stories
Thousands of 5 star reviews
Read real reviews from customers about their service experiences.
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.
Browse House Extension specialists
Take a look at our House Extension specialists profiles, read reviews and request quotes directly.
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
Sign up as a home extension expert
Sign up with Rated People to connect with high-quality homeowners looking for house extension builders. We do the legwork by providing you with leads, so you only need to quote for jobs that match your skills. With tens of thousands of ads posted every month, there’s always a demand for your services. Plus, with larger jobs like a house extension, we take the time to confirm homeowner budgets and timelines, ensuring your time isn’t wasted. Join today to grow your business with Rated People.
We value our clients project expectations regardless of the size or scope. We are highly dedicated and very serious about achieving the highest of standards. Our pricing is extensive, yet competitive and we have many references to back up these claims.
Top quality work. Keystone done our en suite, drive way and our new kitchen diner with bi-fold doors and the place looks totally transformed. Great price and the work quality was top! The guys were very honest, easy to get along with and when ever we had any issues , suggestions or addition things doing they sorted straight away. Would highly recommend.
'%3e%3cpath%20fill-rule='evenodd'%20clip-rule='evenodd'%20d='M12.5%2020.392a1%201%200%2001-.54.888l-5.274%202.73a1%201%200%2001-1.435-1.109l1.494-6.588a1%201%200%2000-.306-.964l-4.723-4.254c-.65-.586-.287-1.666.585-1.74l6.105-.514a1%201%200%2000.846-.629L12.5%200v20.392z'%20fill='%23F7DB34'%20/%3e%3c/g%3e%3c/svg%3e){kind=small}
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.
We take pride in delivering all jobs professionally, with exceptional attention to detail and a strong commitment to quality workmanship. Every project is completed to the highest possible standard, using reliable methods and care from start to finish. Customer satisfaction is our top priority, and we work closely with every client to ensure their needs and expectations are fully met. We stand behind the quality of our work and always aim to provide dependable service, honest communication, and results you can trust. Our goal is to build long-term relationships with our customers by providing outstanding service and achieving 100% customer satisfaction on every job.
Handyman with qualifications in plumbing and electrical works. Small quotes as the company is only a toddler and needs feeding to grow.
Daniel came within 24 hours to build a cat flap through a wall. Lovely chatty guy - very helpful - even drove me to pick up an extra extension for the tunnel we needed to create. Thank you!
OUR TEAM HAVE MASTERED THE HIGHEST SKILLS AND CRAFTMENSHIP OF THE WHOLE DOMESTIC BUILDING INDSUSTRY AND WE ARE LOOKING FORWARD INTO BRINGING YOUR PROJECTS INTO REALITY.
Florin's work on my new staircase was excellent. His work was clean and tidy. When there were opportunities to take short cuts, he didn't, always completing a thorough and professional job. He gave advice and talked through each of the options carefully. His work was completed on time and on budget. His team were courteous, polite and cleaned up every day. The final job was better than expected. I would have no hesitation in using him again.
WELCOME TO CONSTRUCTION LONDON We offer our services throughout , Essex and East and south London. Construction has a wealth of building and construction experience including , extensions, renovations, restorations, and more, we are happy to do bigger project of paint one room and Our team has a solid foundation of highly skilled devoted and dedicated tradesmen you can trust. We all strive for perfection. We offer an affordable, reliable and high quality service with specific attention to detail resulting in clean and precise work. Our team ethos is to continue to deliver these high standards to each of our clients, from the initial meeting right through to the completion of a project
Alex did a fantastic job redecorating my flat. His communication was excellent, he got everything finished on time, he made helpful suggestions of things that needed doing. Highly recommended.
SELF EMPLOYED 36 YEAR WORKING HISTORY & EXPERIENCE INCLUDE: •Building / Maintenance contracts for •Brighton and Hove city council. •Building / Maintenance contracts for •Lewis district Council. •Liaising with planning officers. •Public house renovations. •Office fit outs. •House building. •House extensions. •Loft conversions including adaptions to adhere with disability regulations. KEY SKILLS & COMPETENCIES •Project planning - Leading building contracts and ensuring lines of communication are strong within those teams. •Financial planning of contracts. •Negotiation skills, When establishing contracts with suppliers and Vendors. •conducting statutory inspections according to legislation regulations. •Skilled and Joinery (first and second fix’s). •Shop fitting / decorating. •Plumbing. •Bricklaying. •Roofing. •Plastering. •All Ground works and drains. •Experience of health and safety and on site risk assessments. •Raising method statements and issuing permits to work on site. •Use of IT and telephone systems to maximise the effective management of the project/contract. •Excellent team player with the ability to work on own initiative. •Group of 5 full time employed workers. •Great environment awareness. •Possesses a common sense. approach and “can do attitude“ to problems. QUALIFICATIONS: •City and Guilds Plastering •City and guilds bricklaying and ground work. •Federation of master builders carpentry. •Experience of mechanical and electrical refrigeration. •Health and Safety - Current. •Environmental Awareness - Current.
Very pleased with Wes work Did a great job
ECO TOP HEAT & POWER LTD
House Extension
We offer the complete design and build solution or build to your plans if you have had them prepared by others. We tailor ourselves to suit your personal requirements and project needs, whatever the size of your project from loft conversions, kitchen extensions, total house refurbishments, complete new build, single/double storey extensions, bathroom design, kitchen design, interior design etc.
local, experienced builders covering the South west
initial negative due poor communications..but now resolved as contractor was suffering with an illness which I accept and also have hired him to do the work. please consider my negative report as incorrect and deleted.
The Bryson Group
House Extension
We at Team Bryson are specialists in the complete infrastructure of development. With all trades under one roof, we do it all, from start to handover. We offer windows and doors, porches, conservatories, orangeries, sustainable energy solutions and extensions. We are very proud of our achievement, they include seven trade awards and one outstanding achievement award. We are rated to be within the top 5% in the UK, by an independent validation and verification company. Team Bryson, award winning fitting teams from an award winning company. We cover the whole of South Wales, Bristol and Bath. Over 36 years experience in the industry, tried, tested and proven to be top in our fields of expertise.
Domward
House Extension
we are a small company, consisting of four employees. Our motto is that a satisfied customer will bring two potential customers, quality is our main goal.
LG Building Services offers a multitude of jobs. With six years of experience, we are confident in taking on a wide range of projects. No job is too big or too small for us. We strive to keep all our customers happy with transparent pricing and no hidden costs throughout the job.
Quick and very friendly. Built my veranda in a day with no stops. Hard workers, very pleased and would hire again.
Adam Atilla Bodi
House Extension
I have a long times experience in construction(more than 10 years) specialised in building construction,refurbishing,extension,painting,carpenter. I own all necessary tools for any kind of jobs . I am a very serious person,with many tipes of skills ,so be free to contact me anytime.
We are a family owned company with over 20 years of experience serving our valued customers in Southampton, Winchester and surrounding areas. We specialize in extensions, garage conversions, wall alternations and removal, bathrooms & kitchens renovation, carpentry and plastering. Please visit our website for more information.
The best building company we have ever had the pleasure to work with! They were incredibly professional dynamic with superb craftsmanship very efficient and very well lead. All of Penco s team were polite humorous supportive and A pleasure to have in our house. Penco catered for our every requirement and we are full of admiration for their work ship and we would 100% recommend them unreservedly. (Ex Army Lt Col)
'B Putney and sons Property services is a family run business offering high quality and friendly service to clients on their projects whether large or small. Honest, reliable, clean, and trustworthy, B Putney and sons Property Services takes pride in all of our works, giving a high level of attention to detail on every job we do B Putney and sons Property Services aims to make all projects as efficient and cost effective to our clients as possible, and we consult with clients every step of the way to ensure there are no hidden extras We pride ourselves on the fact that we get a great deal of repeat business from satisfied customers who also pass their recommendations on to others. We are happy to supply references on the quality of our work
Excellent service, happy with my new tap. Good commication, arrived next day and job completed to a high standard. Hopefully they will be doing some other work for me shortly. Thanks so much
Professional & Affordable Building & Landscaping Services We've been experts in building and landscaping projects since 2013, ensuring reliability and excellence in every service we provide. We offer a wide range of professional services tailored to meet your specific needs. Whether you require comprehensive building solutions such as refurbishments, kitchen services, flooring, and porch services, or meticulous landscaping services including wood decking, driveways, astro turf, patios, and fencing installation, we've got you covered. With a proven track record of delivering excellence since 2013, and with our fully insured services, you can trust that your project is in capable hands, ensuring exceptional results every time. With us, you can relax knowing that your work is in good hands. We prioritise reliability and transparency, offering you peace of mind throughout the entire process.
THOMAS GEORGE JOHNSON LTD
House Extension
Thomas George Johnson Ltd is a family-owned business servicing the construction industry. Whether you are looking for residential or commercial then we are here to help. We specialise in space fit-outs including offices or house extensions, get in touch with us today for a wide range of construction solutions. Thomas George Johnson Ltd continues the tradition of providing new and existing clients with excellent service, great quality of work, and schedules that exceed the requirements of Client's expectations. TGJ Ltd specialises in new projects within the construction sector, including refurbishment of existing facilities, retail, residential extensions, garage conversions, maintenance, repairs, installation, electrical & plumbing, painting interior and exterior, dry lining, plaster boarding, tarmacadam driveways, road markings, remodelling, kitchen, bath, carpentry, tiling, flooring, brickwork, fencing and landscaping. We can offer very competitive rates with the highest commitment to quality and services throughout. No matter the size, complexity, or location of your next project Thomas George Johnson can provide you with personalised service, reliability, and quality building. Thomas George Johnson Ltd looks forward to being part of your next project. Let us help you generate this year's budgets and engineer your estimates. Contact details can be found at the bottom of the page. Our Vision is to be the First Choice of Builder For all Our Customers We guarantee you'll be extremely satisfied with the result.
Blakefield Construction
House Extension
Blakefield Ltd / t.a Blakefield Construction Blakefield Construction is a Gloucestershire based building company providing high quality construction services throughout the county aswell as Worcestershire and the Cotswolds. We specialise in new builds, extensions, plastering, painting and decorating. Whether undertaking residential or commercial works, our small experienced team is committed to completing projects to the highest standards, on time and within budget. At Blakefield Construction, we pride ourselves on quality and attention to detail.
Phoenix Construction continues to provide quality and efficiency on all manner of projects. We have been in the industry for over 40 years. We have an excellent reputation. We Mainly Focus on: Extensions Driveways Roofs Full renovations Bathrooms Kitchens Loft Conversions and many more... We look forward to hearing from you.
Made a total mess of a small extension. Quoted 2 weeks and after 7 I sacked him off as we were going nowhere. Massive list of his work didn’t comply with building regs and ended up fitting a purlin to roof as he used wrong sized joists. I now have bits of roof hanging off after max 30 mph winds Even managed to cock guttering up so down pipe is nowhere near drains. Roof leaking and I have had to sack him off and pay another load of cash to a set of lads who can do the job. Avoid or he’ll bankrupt you
We are a Plymouth based construction company headed up by a Chartered Construction Manager. We offer a full range of construction services from smaller works to complete new build and refurbishments. You'll find us to be efficient, friendly and professional in all of our work and always aim to make sure our customers get exactly what they expect.
'%20rx='20'%20/%3e%3cg%20fill='%23FFF'%3e%3cpath%20d='M29.376%2016.914c-.555%200-1.006.454-1.006%201.013v37.416c0%20.578.472%201.014%201.097%201.014h34.109a1.007%201.007%200%200%200%20.972-.83%201.012%201.012%200%200%200-.161-.76l-6.446-9.416c-.375-.548-.567-1.085-.586-1.642-.034-.977.516-1.952%201.402-2.483%204.8-2.878%205.808-7.575%205.808-11.009%200-7.335-5.925-13.303-13.207-13.303H29.376ZM63.594%2059.75H29.467c-2.505%200-4.467-1.936-4.467-4.408V17.927c0-2.43%201.963-4.408%204.376-4.408h21.982c9.14%200%2016.577%207.49%2016.577%2016.698%200%205.879-2.46%2010.687-6.944%2013.607l6.17%209.017c1.37%202.002.868%204.752-1.12%206.132a4.336%204.336%200%200%201-2.44.778h-.007Z'%20/%3e%3cpath%20d='M38.767%2027.797c0-.749.603-1.357%201.347-1.357h6.427c3.979%200%206.426%201.72%206.426%205.099v.123c0%203.132-2.325%205.098-6.365%205.098h-3.848l-3.985%203.998V36.76h-.002v-8.963'%20/%3e%3c/g%3e%3cpath%20fill='%23FFF'%20fill-rule='nonzero'%20d='M18.176%2069.2h2.156v3.878h3.976V69.2h2.156V79h-2.156v-3.934h-3.976V79h-2.156v-9.8Zm16.428%207.98c.43%200%20.826-.08%201.19-.238a2.72%202.72%200%200%200%20.931-.658c.257-.28.457-.604.602-.973a3.21%203.21%200%200%200%20.217-1.183V74.1c0-.42-.072-.817-.217-1.19-.145-.373-.35-.7-.616-.98a2.96%202.96%200%200%200-.945-.665%202.873%202.873%200%200%200-1.19-.245c-.439%200-.838.08-1.197.238-.36.159-.667.378-.924.658s-.457.604-.602.973a3.21%203.21%200%200%200-.217%201.183v.028c0%20.42.072.817.217%201.19a2.959%202.959%200%200%200%201.554%201.645c.36.163.758.245%201.197.245Zm-.028%201.988a5.343%205.343%200%200%201-2.086-.399%205.187%205.187%200%200%201-1.645-1.078%204.823%204.823%200%200%201-1.078-1.596%205.029%205.029%200%200%201-.385-1.967V74.1c0-.7.13-1.356.392-1.967a5.075%205.075%200%200%201%201.085-1.61%205.05%205.05%200%200%201%201.652-1.092%205.395%205.395%200%200%201%202.093-.399c.756%200%201.451.133%202.086.399a5.187%205.187%200%200%201%201.645%201.078c.462.453.821.985%201.078%201.596.257.611.385%201.267.385%201.967v.028c0%20.7-.13%201.356-.392%201.967a5.075%205.075%200%200%201-1.085%201.61%205.05%205.05%200%200%201-1.652%201.092%205.395%205.395%200%200%201-2.093.399Zm8.14-9.968h2.324l2.576%204.144%202.576-4.144h2.324V79h-2.142v-6.398l-2.758%204.186h-.056l-2.73-4.144V79h-2.114v-9.8Zm13.152%200h7.392v1.918h-5.25v1.988h4.62v1.918h-4.62v2.058h5.32V79h-7.462v-9.8Zm13.866%209.94a6.49%206.49%200%200%201-2.198-.385%205.817%205.817%200%200%201-1.96-1.183l1.274-1.526c.448.364.908.653%201.379.868.471.215.987.322%201.547.322.448%200%20.796-.082%201.043-.245a.771.771%200%200%200%20.371-.679v-.028a.85.85%200%200%200-.077-.371.778.778%200%200%200-.294-.301%203.079%203.079%200%200%200-.602-.28c-.257-.093-.59-.191-1.001-.294a12.201%2012.201%200%200%201-1.344-.406%203.787%203.787%200%200%201-1.022-.553%202.237%202.237%200%200%201-.651-.819c-.154-.327-.231-.733-.231-1.218v-.028c0-.448.084-.852.252-1.211.168-.36.404-.67.707-.931a3.183%203.183%200%200%201%201.085-.602c.42-.14.882-.21%201.386-.21a5.86%205.86%200%200%201%201.981.322%205.743%205.743%200%200%201%201.659.924l-1.12%201.624a7.1%207.1%200%200%200-1.288-.707%203.292%203.292%200%200%200-1.26-.259c-.42%200-.735.082-.945.245-.21.163-.315.366-.315.609v.028c0%20.159.03.296.091.413.06.117.17.222.329.315s.376.182.651.266c.275.084.623.182%201.043.294.495.13.936.278%201.323.441.387.163.714.36.98.588.266.229.467.497.602.805.135.308.203.677.203%201.106v.028c0%20.485-.089.917-.266%201.295a2.66%202.66%200%200%201-.742.952%203.353%203.353%200%200%201-1.134.588%204.924%204.924%200%200%201-1.456.203Z'%20/%3e%3c/g%3e%3c/svg%3e)
Get our app for homeowners
- Send messages and get notifications from tradespeople
- Add photos to get more accurate quotes
- View tradespeople's profiles