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 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.
Rm property maintenance is a family run business with nearly 20 years experience behind us offering you a wide range of service at affordable prices specialist in all Upvc products and roofline products guttering repaired. And renewed
Answered the ad very quickly and did the job with no drama and at reasonable price. Will definitely use again.
sole trader operation with over 35 yrs continuous experience. trade indentured, city&guilds1st and time served.all aspects of brickwork with particular concentration to repointing, restoration,strengthening& surface cleaning.all lime& Portland mortar done
We are a family run business with experience in all aspects of Building, roofing & home improvements. working around Newport and the surrounding area's. We provide a fast and professional service at competitive rates. No job too small, call now for a free quotation, partner to ( shield roofing specialists south wales)
At Bottega Interiors we deal with bathroom installations, bedrooms and kitchens. also handling anything from small leaks to full renovations. We pride our services with all aspects of works meaning you the customer won’t have the head ache of calling multiple trades people to complete one job. We take the stress out of your hands and handle the job all under one roof.
Very knowledgeable, professional, punctual, and left the place spotless. Will use again
'%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}
Carpentry (Certified Fire Door Installer/competent person) Electrical and general builder
At The Ruby Team we value great work and our word. Reliable, trustworthy and punctual tradesmen is what we are. With fantastic quality of work and enthusiasm we really get the job done to a 5* level. With 7 years in the field as a multi-tradesman I’ve accumulated a lot of knowledge in many sectors. No job is too small nor too big for us and we cover all areas in London and Essex. We follow a CLAYGO service which is a protocol we follow to ensure your house is as clean as when we entered it. #Residential. #Commercial. #Landscaping. Terms & Conditions. Any job cancelled by client with less than 48 hours notice will be subject to a flat £65 cancellation fee which is due when cancellation is confirmed. Payments are due on completion and once customer is satisfied with the quality of workmanship. If customer is not satisfied, it will be resolved with snagging or discount.
Abigail Construction are a local based firm of General Builders and Brickwork contractors. We have over 30 years experience and specialise in all aspects of brick/masonrywork internal and external house renovations and improvements.
Fair quote which didn't change. We had some family issues and Gavin was very accommodating with changes. Got job done quickly and looked great. Will definitely use again
We are a family run and owned Joinery based company of 20 years .All types of Joinery 1st & 2nd fix ,Doors ,flooring. Kitchens ,Commercial ,Shop fit out Media Walls , Wall Panelling ,Decking , Garden Rooms , Fencing, We also cater for new builds extensions and general building work A 5 Star Rated Company
Excellent service from Lee's team - quickly quoted for job - turned up as agreed and finished the job on time - I would highly recommend this company for anything you need to know about fire doors! Thankyou!
Electrician at Self employed electrical engineer
Came out short notice. Managed to squeeze me in. Due to short notice of getting room plastered 3 days later. Had 4 double plugs put in. In chrome like I wanted. They were professional and cleaned up after themselves. Will definitely use again
We are a limited business local to blackpool, friendly, trustworthy and reliable in the trade. We offer a range of services available to the end user ie. Roofing/flat roof/ re-roof. We have 40 years experience so feel free to have a look at the reviews on our page and ask any questions. Yours faithfully Mark
Great team. Fast and efficient. Great job done in what was not the best weather. They powered through and were a great help solving my roofing issues. Would highly recommend.
Welcome to Certified Group Limited, We are a sister company to Certified Gas Heating Ltd. Started of as a dedicated and driven apprentice who started working within the plumbing trade from the age of 15. Established in 2012, We are a fast growing company accommodating your plumbing, heating and gas utilities effectively. Over the years we have started to offer other services which include: Electrical, renewables, drainage, carpentry, roofing, property renovations and kitchen extensions hence the reason for the name change as it fits our image at present. We at Certfied group are known for being professional, organised and enthusiastic at all times. We are approved contractors rated a “5 Star company for quality services” on Which Trusted Trader, Trust Pilot and other platforms. We at Certified group have a fantastic reputation for our hard work, performance, quality and efficiency. We are based in Greenwich SE10 London and cover whole of the capital and surrounding areas. We offer a 24/7 emergency services, Landlord safety certificates, Central heating and boiler installations, Breakdowns, Repairs, Power flush and more.
Great experience with Aziz and team. They provide lots of advice and a detailed quote before starting any works. The work was quick and efficient and they were super tidy throughout the whole process. All works were completed to a high standard and we are so happy with our newly installed radiators. Thanks again for the amazing effort
MR roofing and building. Over 20 years roofing and building experience we pride ourselves on quality work at a high standard. We specialise in all aspects of roofing and building maintenance/repair. We are a honest and reliable company and take great pride in every job we do. The type of work we normally do is tile and slate roof repairs, flat roof repairs,chimney repairs, Lead flashings, guttering,fascia and soffits. All aspects of bricklaying, pointing, internal reconstruction, installing lintels, structural reinforcement, opening up and blocking up fireplaces,flagging, Rendering, plastering. All work done by a experienced qualified tradesmen. No job is too small. •Qualifications. Fully qualified NVQ2 bricklayer. CSCS card holder. Construction skills certification scheme. Time served roofer. City and guilds in •Engineering craft studies. • Mechanical production. • Industrial studies. • Material removal. • Joining. • Assembly and dismantling.
Hired to fix my guttering and they have done a brilliant job, they came to check and work out what the problem is and gave me a reasonable quote, they arranged a date and time to carry out the work and the leak and guttering issues are completely gone. Would highly recommend.
Construction and brickpaving company...we have been In business since 2005 with over 100 happy customers to date no job too small.... James eves JLE paving ????
James is a fantastic tradesman: he is highly skilled and knowledgeable. James is a great communicator and he talked me through all the options. What a hard working and friendly person. I highly recommend James
Hi we do from one slate or tile too full re roof flat roofs garage roofs all upvc fasica boards soffit boards guttering and down pipes all tree work plus waste removals plus much more
Darren and Andy did good job, cleared a lot of rubbish and left the yard tidy.
RJR Home Improvements are here to help! We are a family run business who pride ourselves on high quality workmanship and customer care. We offer a friendly reliable and trustworthy service. Our high standards and customer satisfaction is of the utmost importance to us. Our skills cover the whole building sector, everything from odd jobs as small as garden & gutter clearances to full refurbishments & replacements from top to bottom of your home. We have a combined experience of 45 years in the trade which means when you choose RJR you can rest assured that your project is in the best of hands.
Ryan was punctual at all times. His communication skills are excellent. Ryan and the team worked efficiently and effectively. The finish on the job was good. I believe that he diagnosed correctly the problem with the roof. I can’t confirm yet whether the leak has been resolved. I’ll have to wait until it rains!
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.
Very helpful an friendly did a great job
A joiner by trade but an experienced tradesperson in a number of home related areas including kitchens, bathrooms & maintenance
Fast, professional and friendly. Recommend
We are a company that has many years of experience in the building business. We are passionate about our reputation and our aim is to leave every customer extremely happy with the workmanship we give them.
Lee and Rhys went above and beyond to complete my job - Media Wall. They were professional, respectful and I am extremely pleased with the end result. Media wall looks amazing and is exactly as I had asked. Great workmanship and I would highly recommend First Class Property Care
Hi welcome to Newman & sons. We're a family based company from Berkshire & also covering the south of England specialising in high quality new builds/refurbishing/emergency repairs/industrial roofs. For over 40 years. Specialist in Roof cleaning/roof repairs / new roofs. Gutters/ upvc Facias/chimneys. We also carry out industrial roofing. We're LABC REGISTERED & only use good quality materials & family tradesmen to get your work done. All quotes are free & no obligation /insurance /emergency. Please call even if it’s just advice. We’re more than happy to help.
I
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.
'%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