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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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Builder and maintenance contractor with over 30years experience in general building and roof, chimney repairs, leaking roofs and general repairs , any building works considered, we have repaired buildings of all ages and built walls Ect, any maintenance issues fixed and all work insured and guaranteed, also a roof washing system where we was repoint and seal with a waterproof coating, Loft insulation and damp proofing
Peter contacted me very quickly after I'd posted the job. He was very good, liaising with my tenants to get access and rang promptly to report back on what the issue was. Very prompt dealing with it, reasonable cost and really friendly guy. Would certainly use him again for any future issues.
Newman plastering. I am a one man band company, with just myself on the tools This means I have no overheads, so I am able to keep the cost down for my clients, but if needs be I can lay my hands on quality plasterers who share the same skill and passion for the job as me. range of services cover: * skimming plastering * Damproofing * External rendering * Dry lining * Internal rendering * Monocouche scratched renders(k rend) Why choose me? * friendly & reliable service * Many years of experience * Pay attention to health & safety * clean & tidy I have more than 10 years experience in all aspects of the plastering trade, and started learning the art of plastering with my uncle . By the time I was ready to leave school I was already becoming handy with the trowel and had some experience behind me, so I went on to do my apprenticeship and work with various other plasterers gaining more experience and learning my trade on housing sites and various big commercial jobs, as well as doing the odd domestic and private jobs. What makes me different from most companies? Well, I actually enjoy what I do and love plastering, so you can be sure to get a top job. So now you know a bit about me, feel free to use me for your plastering needs.
Neat, tidy and excellent finish in a small rm
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Hi im a builder with over 20 years experience in construction and decorating I'm a team of 6 good workers wii do olmost evri job inside and out side home restaurants club's and mani more. No job to small or to big.
Very helpful and efficient
18+ years of experience. Providing services, ranging from electricity, plumbing, home extension and more. With fully trained and experienced workers, ensuring quality everytime.
The entrance door to my flat needed to be adjusted to meet fire regulations. I was really pleased with the result. Mani is a skilled man who worked with care and attention to detail. He made sure that the finish was good and thoroughly cleared up afterwards. He was also courteous and clearly explained what he was doing.
we are experience refurbishment contractors. we are reputable and reliable builders, established since 2010 and over 20years experience in building trade. using our skill and materials, we are eager to ensure that our customers are completely satisfied.
Did not received the quote / response after sent the details.
Neil Chamberlain Neil has over 30 years of experience in the construction industry, where he has gained a comprehensive level of knowledge and a thorough and in-depth understanding of most trades and skills. Neil commenced his career in construction as a sub-contractor building loft conversions, primarily in West London, and was awarded by The Federation of Master Builders for an exceptional conversion in Wimbledon. Neils recognised high standard of work has secured many diverse construction projects, including the substantial renovation of Period Houses, including listed buildings, single and double storey extensions, detached new build projects, an award winning Chelsea landscaping and garden design, as well as commercial buildings. Neil has worked as part of a team, as a main contractor and has also project managed all elements required in completing building projects large and small successfully. Property Service, (NPS) is a family owned and run business, bringing an extensive level of ability to benefit our clients projects. Whether you require property maintenance or are planning something more substantial our team will assess your requirements and put in place a tailored package for you, from an appropriately detailed quotation on smaller projects, to an all encompassing design and build service, including - planning, building control and a detailed costed schedule of works, we have the experience and background to meet your requirements.
Welcome to Rothwell Contracts & Rothwell Kitchens Ltd Nottinghamshire based family run businesses
Whoops, sorry, about the last comment about rcl builders, that comment was to another builder.
Room Builder
House Extension
Room Builder has over 40 years of experience in supply and installing Windows, Doors, Conservatories, Orangeries and Extensions, All our work is carried out to a high specification, with Johns knowledge and experience he can design and advise to deliver exceptional results for your home and life style.
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.
James was excellent in explaining what was needed to ensure the patio was relaid correctly. He fairly quoted for the job and then completed the work to a high standard.. patio now looks fantastic. I have no hesitation in recommending James.
We are two brothers, that have been in the trade for 10 years both qualified joiners, who undertake all aspects of internal and external bespoke joinery and construction.
Fantastic job , really pleased with the work. Turned up on time , cleaned up . Would definitely recommend and will use them again for any future work
We provide guarantee quality job with amazing pricing for more then 7 years, Hangloss providing different type of design paintings for same pricing too
Thiara Construction Ltd
House Extension
Quality.safety.reliability All building works undertaken Loft conversion Back extension Driveways Renovations Gardens
Aspray South West Thames manage property damage insurance claims. We act on behalf of the policyholder, negotiation the claim with the insurance company, then project manage the reinstatement works from start to finish.
Job done professionally and in a timely manner. Excellent Service.
Wolverhampton based building company offering building & renovation services. We specialise in extensions, garage conversions and complete house renovations. All quotes are offered free of charge without obligation. Quotes can be undertaken on an evening or at a weekend at your convenience. We can also arrange architectural services, structural engineer calculations and building notices. All works completed come with a 10 year workmanship guarantee and we can also arrange for all works to come with an insurance backed warranty.
A great company to deal with, Lee helped with my architect and a meeting with the local council building inspector in order to design our bespoke project. There were several obstacles to overcome and the plans had to be changed several times but Lee guided us through them and provided support throughout. I would not hesitate to recommend this company as Lee went above and beyond providing us with an excellent service, keeping us informed at all times.
Cesar was really professional and he worked hard and completed the job to perfection. He refurbished two bathrooms including all the tiling. He is simply the best and I will gladly refer him to all my friends and colleagues. If we ever need a plumber I will always turn to Cesar.
Alpha plumbing have been established for over 15 years we are based in widnes and carry out all aspects of Domestic and Commercial plumbing, heating and maintenance work, we also have a full building team that can carry out all aspects of building work from a small exstension, loft conversion or a new build house whatever you require start to finish our build team has a wealth of knowledge. Back to the plumbing and heating We believe in gender equality and to show this we have a female plumber on the team. We are a reliable team that provides a quality job and good customer service along with great workmanship. We specialise in boiler installations and reactive maintenance, no job is too big or small other aspecs include -big and small system powerflushing -servicing and maintenance -Cold water main boosting systems -unvented hot water systems -commercial maintenance -legionnaires checks -saniflow maintenance and replacement Nothing we wont resolve if you have an issue that seems a problem to others then get intouch we love a challenge If your looking for quality and reliability along with a company that is available 24/7 then give us call. Not yet reviewed on here but we have plenty on google if you search Alpha plumbing widnes we come up. All our work is guaranteed
Family run with over 20 years experience F gas register Gas safe registered Domestic air source heat pump registered Wras Joiners also available
Michael went over and beyond to try and fix our boiler, but it was just not to be. Within 2 days, the new boiler fitted at the cost agreed. Would highly recommend.
We are a friendly family run business of 3 generation's We offer a complete building service with all of our trades men in house. we have completed some major restorations such as Vermont hotel 108 bathrooms county hotel full conversion many extensions and house builds also maintenance for landlords and home owners give us a try and hope to see you soon.
Excellent. Did the work with no bother. Good price.
USE US ONCE,,,,,TRUST US ALLWAYS !
Very friendly and helpful service. Fairly priced quote so good value for money. Will be contacting them again if I need further work in the future. Thank you for your help
I am an independent builder with 24 years of experience and cover most areas in the construction industry. I have a good team of friendly workers who work very hard and we get the work done in good time and to a high standard.
Lovely job, really happy with my new laminate flooring! I would highly recommend Ben.
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