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.
Derick's Home Improvements
House Extension
I prioritise in providing a good quality bespoke service for customers. I have more than 30 years experience in the business with a large clientele. I specialise in home renovations, no job is too big.
The Cubiq Construction team brings over 25 years of industry experience. Our SMSTS-qualified managers are skilled in delivering high-quality projects, ensuring client satisfaction and peace of mind. We are able to take on every aspect of all kinds of works, from surveying to design to structural calculations through each construction phase. What we offer is beautiful projects at attractive prices with a high standard of finish. The way we deliver is what makes us to stand out from other companies and and makes us a leader in the field. We are unique in the structure of our business, which has been formed to maximize quality, speed and efficiency for our clients and teams. We are committed to delivering on these aspects and our company’s vision. Highly professional services. Using the latest mechanical equipment. British standards high quality materials We provide the most reasonable prices. Following the global design. Undertake to meet the deadline.
We are a small but capable building company. The images attached to my profile shows our current project. 6 new homes in Dursley. These are 5x 3 story homes and 1x 2 story home. This project has been completed over the last 14 months with some major structural complications that we have over come with skill and perseverance. 3 types of retaining walls implemented to help secure the land. Complicated foundations, both in depth and location. 36 pile foundations at a depth of 9 meters. My company can provide a structural engineer, architect, our own in house Gas safe engineer and all the trades to complete your project no matter how small or big. For those that require it we are registered with Advantage Structural Warranty allowing us the ability to offer a 10year structural warranty for new builds. Should my profile catch your eye then please do not hesitate to contact me.
BESPOKE KITCHEN AND FURNITURE
Igor built shelves, cupboards and open lockers for us and we are delighted with the results. The finish is of a very high standard. Igor was consistently efficient, reliable and dedicated. We would highly recommend his work.
'%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}
With over 25 years of experience, we are a fully insured professional building company specialize in all aspects of home improvements, We are a team of hard workers, giving the best at all the time. We pay a great attention to details and we put the quality first. Keeping the work area tidy is a habit for us. Quality and meeting the deadline are very important factors for us when we doing a job. Our goal is to achive customer satisfaction when we doing a job! We offer competitive prices and free quotes
Excellent family run business with father (Marion) who is the main man for the job Reasonable quotes and prompt with phone calls and replies Would highly recommend the team
House Extensions, Loft Conversions and Renovations Specialists
We have found drainage problems which the insurance company will not honour due to incorrect installation during this project. This has cost us dearly.
AH BUILDER
House Extension
I have been working as a self-employed builder for aprx 8 years. I have experience completing most aspects of building work; from small projects to full extensions. I always aim to complete jobs to the best standards, I always aim to concentrate on one job and compete in a timely manner.
BJK Building Services Ltd
House Extension
Jgdgdujv
At Surrey Hills Extend & Renovate we promise Quality and Craftsmanship. We take pride in delivering superior quality in every detail of our work, ensuring long-lasting and visually appealing results. We have a Customer-Centric Approach and your satisfaction is our top priority. We work closely with you, understanding your needs and preferences, to create spaces that truly reflect your vision.
Very good and profesional
ALL ABOUT HOME CONSTRUCTION
House Extension
We are an established company with more than 30 years experience of building and constructions around Europe including Greece and England. We currently cover the entire Sheffield Area and also within 40miles. We are a team of high skilled professionals with a keen eye for detail and we place a particular emphasis on good customer relations which includes trust and reliability. Our main aim as company is complete client’s satisfaction, delivering all projects within budget, time scale and to the highest of standards. We take on any building construction work you need including, including: - Roofing - Tiles - Garden Renovation - Full House Renovation - Decoration ...And more! We can provide pictures of previous jobs too.
About Our Company If you are searching for experienced and reputable building contractors to convert your garage, you have come to the right place. Surrey Garage Conversions is a team of highly skilled and City & Guilds-trained building professionals who construct our garages to the highest standards. A garage is often used as a storage space or dumping ground, which can be greatly overlooked as being fit for another use. However, our garage conversions are designed to maximise the potential of your garage space so that it can be used as a hobby room, office, playroom, or another reason. We are proud to have an excellent reputation, and much of our work comes from word of mouth and referrals. We convert garages across Surrey and Sussex. Please see our FAQs. Call us now for a free and no-obligation consultation.
They were quick to respond and to provide a reasonable estimate for how much the work would cost. Once we had confirmed the job, they were flexible in working around our dates. The work was done promptly and our tenants were very satisfied with the quality. A great job all round.
HMR CIVIL ENGINEERING LIMITED
House Extension
Builder Boys
House Extension
With 10+ years of experience in the industry, Builder Boys Service brings a wealth of expertise and proven success to every project. Our extensive experience allows us to deliver top-quality workmanship, exceptional service, and unmatched professionalism. Trust in our seasoned team to bring your building visions to life with precision and dedication that only come with years of experience. We understand the importance of meeting deadlines and strive to complete every project within the agreed-upon timeframe. Our efficient planning, skilled team, and streamlined processes ensure that your project progresses smoothly and is completed on schedule. You can trust us to deliver exceptional results without compromising on quality, ensuring your satisfaction with our punctuality and dedication to meeting your timelines. We are deeply committed to providing our clients with the highest level of dedication and transparency throughout every step of their building journey. Our honest approach ensures that you can trust us to deliver on our promises and provide reliable solutions tailored to your needs. With Builder Boys, you can count on a partner who is genuinely dedicated to your satisfaction and committed to building lasting trust and relationships.
Gabrica Ltd provides reliable and high-quality property refurbishment and maintenance services across London. We specialise in kitchen and bathroom installations, tiling, flooring, carpentry, painting & decorating, and general home improvements. With years of hands-on experience, we take pride in delivering clean, precise workmanship and completing projects on time and within budget. ✔ Fully insured ✔ Attention to detail ✔ Clean and tidy work ✔ Friendly and professional service Customer satisfaction is our priority.
Brilliant. Efficient, hard working, friendly, professional, good vale and quality work. I'm very pleased and will use again.
We offer wide range of services from bathroom and kitchen fitting, extentions and loft convertions, landscaping (building work not gardening) and patios, to home improvements, alterations and maintenance. Most of the smaller jobs are done by me and labourer, for larger projects we are joined by small team of specialist tradesman.
Excellent
We are General Building Services ANGEL BUILDING@BUSINESS We look after our costumers for 26 years. All Work Undertaken
With over 35 years of industry experience in Northern Ireland, Aquaforce is Newtownabbey’s local experts when it comes to building services. Whether it’s domestic, contract or commercial work, no job is too big or too small for our highly skilled workforce. Our friendly and reliable team offers value for money and expertise across a range of building and construction services for both private and commercial clients. From extensions, repairs, loft conversions and damp proofing to insurance work and decorating, we handle everything. If you’re home or workplace is in need of repairs or renovations, don’t hesitate to contact Newtownabbey and Northern Ireland’s premier building services today.
Messed me around for weeks and then on the day job was due to start, they said they couldn't come. Very disappointed in the level of service. Avoid.
5 star work we specialise in all home improvements and landscaping?
Did not hire
ACG Ltd . Provides quality and good price on labour and materials All ways on time , best for clients
Philip Bamford
House Extension
We specialise in new builds, extensions, conservatories , loft conversions , garages ect. And all our work comes with a full written garrantee . Plus references are provided with every quote
'%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