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Find a local house extension specialist

If you've outgrown your home or lack the space to accommodate guests, consider a house extension rather than moving. Find out how you could rejuvenate your home with the help of a local specialist.

Browse House extension specialists

Take a look at our House extension specialists profiles, read reviews and request quotes directly.

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Need a proper job done? You got the right tradesman to do it

Latest homeowner review

Reviewed by Steve on 28/9/2019

Piotr (Peter) is a fantastic tradesman, his professionalism is to be commended. I have been so impressed with his commitment and hard work to insure the client receives the best results; which my wife and I did. An extremely approachable individual who is brilliant at his chosen profession.

Established in 2001, I.c.joinery are a well respected family ran company doing everything from small projects up to contract work for the ministry of defence. The pride we take in our work speaks for itself. Offering a full design, manufacturing (in our own workshops) and installation service, also project management with access to all trades.

Latest homeowner review

Reviewed by Dan on 30/7/2018

Ian did a great job with a fast turnaround, and offered design choices

DM Construction's core business is comprehensive refurbishment services. We are a dynamically developing company from Southend on Sea. Thanks to the experience gained, we provide the highest quality renovation and construction services. Our professionally selected team of qualified employees guarantees reliable work performance. DM Construction company in the field of modern interior renovations and exterior refurbishments, helps the investor to choose the right renovation technologies. We hope that our proposals will meet with your interest. Bearing in mind the well-being of our clients, we are always ready to help in the field of technical solutions and we are happy to advise you in case of any questions. We invite you to familiarize yourself with our offer and use our services. Refurbishments - Maintenance - General Building

Latest homeowner review

Reviewed by Franko on 21/9/2019

“Dawid and team did an excellent doing a floor for me, i used him long time ago, decided to use again as i know hes hardworking, today they finish job for me, thanks again

We are a complete Building and Decorating services offering all trades and 12 months guarantee on all building work. Are highly skilled team look to give you quality workmanship at a competitive rate.

Latest homeowner review

Reviewed by Robert on 11/9/2019

Robin does a great job and his work is excellent and to a very high standard. I'm so happy with the work done that I'm used Robin for another job I would highly recommended Robin and I would hire again.

Plumlec is a construction,plumbing,heating and electrical business,we construct and install the complete job from ground up including heating ,kitchens,bathrooms,flooring,renovations,extensions there is nothing we can not do or achieve ,friendly,reliable

Latest homeowner review

Reviewed by Susan on 13/10/2019

Excellent service. Arrived when he said he would. Very professional job carried out would highly rate Richard and would definitely use him again in the future.

I am an electrical and building company that provides all aspects of building works from house extensions to simple electrics. I work within Herts, Beds and Bucks and am based from Baldock. I am a fully qualified NIC electrician and have had twelve years experience in the building trade.

Latest homeowner review

Reviewed by Lucy on 3/10/2019

Courtney has a great network of tradesman who are all pleasant and reliable. All requirements were accommodated and no query dismissed. I would highly recommend them for refurbishments and extensions.

TK Builder is a Family based Ltd. Dad and his Son are focused on providing general building services with the highest levels of customer satisfaction. Over 30 years Building Exp, Qualifield, and Reliable Employees. We Make Your Dreams Come True.

Latest homeowner review

Reviewed by Holly on 1/10/2019

This family business comes highly recommended. Their price was extremely competitive for our large kitchen extension and refurb, and included everything from kitchen fitting to garden landscaping. They are brilliant builders, have a good eye for design and were friendly and considerate to us & our neighbours. They work hard and fast; we often had 6 guys in. Norbert was easy to get hold of & frequently went above and beyond, coming over evenings and weekends to help with deliveries and decisions. Lovely job.

OUR COMPANY IS SPECIALISED IN ALL KIND OF HOME AND COMMERCIAL RENOVATIONS; LOFT CONVERSIONS; EXTENSIONS; PAVEMENT & PATIO INSTALLATIONS; FENCES INSTALLATIONS; PLUMBING & ELECTRICAL SERVICES; KITCHEN & BATHROOM INSTALLATIONS.

Latest homeowner review

Reviewed by Ejaz on 30/5/2019

Reliable and reasonable price. Excellent communication throughout. Would recommend and will use again.

Quality installations. Kitchens, bathrooms and general refurbishments. Top tradesman committed to deliver high quality standards and services to customer. No compromises, only the best results.

Latest homeowner review

Reviewed by Jo on 7/4/2019

Rafal carried out extensive renovations to the downstairs of our house including significant structural work and fitting a new kitchen. He has been a pleasure to work with - always polite, professional and reliable. He takes real pride in his workmanship and doesn't cut corners, resulting in a high quality finish. We are very happy with the end result and wouldn't hesitate to use him again on other projects.

We are a building company that deals in all aspects of construction with over 30 years experience, we have qualified and friendly tradesmen who are happy to give advice and do their best to ensure you get the highest quality of workmanship. We are fully insured and have practically every single trade covered within our workforce.

Latest homeowner review

Reviewed by Emma on 11/1/2019

And paul. Also like to add after having the extension built the garden was left tidy and and clean like they had not been there.

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What type of tradesperson do you need?

What type of job is it?

House extension specialists - what you need to know

House and kitchen extensions can transform your property, and add significant value in the process. While they are demanding projects, with the right set of skills and expert knowledge, a specialist can make sure your extension runs smoothly and stays within budget.

But experience and attention to detail are crucial. Just think for a moment about the individual stages and trades involved in a house or kitchen extension. Planning and design, groundwork, brickwork, carpentry and joinery, electrical work, plumbing, plastering, decorating, potentially even roofing and glazing too.

Taking on a house or kitchen extension needs a specialist with a solid track record of transforming their customers’ homes to a high standard, as well as someone who can advise you along the way. An extension can be as much an emotional investment as a financial one, so you need a builder you have confidence in.

Look for a tradesperson or builder who is able to confidently and clearly communicate how they’d approach your project, rather than someone who’ll just “turn their hand” to the varied and unique trades involved.

A reliable and reputable extension specialist will give you a thorough plan for the project: how they’d assist you with the design and layout, the key phases and trades involved, a realistic completion date, and an accurate quote (which they’ll stick to).

Overall, it’s important to consider the scale of the project. Remember, you’re looking for a project partner rather than just a tradesperson.

Cost of house and kitchen extension work

Cost per m2

  • Low: £1,200 per m2
  • Average: £1,500 per m2
  • High: £1,750+ per m2

How long does a kitchen extension take?

Ultimately, this depends on the scale of the project in question and the specification or finish you expect your extension to meet.

A basic single-storey kitchen extension could be turned around in 10 weeks, whereas a more-involved project could take 14 weeks or longer.

How long does a house extension take?

House extensions are usually larger projects – indeed, they could even feature a kitchen as part of the extension.

A two-storey extension consisting of a kitchen or WC on the ground floor and a bedroom on the first floor is likely to take at least 12 weeks to complete, while a larger-scale project with more rooms, floors or intricate features could take 18 weeks or more.

The qualifications your extension specialist needs

Given the breadth of trades that may be required to complete an extension, there can be a number of qualifications and accreditations involved.

The Federation of Master Builders (FMB) is an established and reputable association, but not every builder will be a member. Some trades will be able to produce their City & Guilds or NVQ qualifications, but as these aren’t formally required, plenty of perfectly competent professionals might not necessarily hold these.

However, there are some qualifications that are mandatory for certain types of work. Gas and heating engineers must be Gas Safe registered, while electricians should be signed up to NICEIC in order to commission your electrical work. You may also want to check that your builder adheres to Health and Safety Executive (HSE) best practices when it comes to risk assessment and safe working.

Planning permission for extension projects

Planning permission requirements will vary according to the location of your property and the surrounding buildings. There’s always the potential for grumpy neighbours to throw a metaphorical spanner in the works too.

Official guidelines are fairly easy to understand, but can include puzzling intricacies. No additional planning permission is required as long as the extension doesn’t exceed more than half the area of land around the "original house". You also won’t need to seek additional permission if your extension is no higher than your existing roof.

However, there are some restrictions it’s worth being aware of. You can find the full list on the planning portal website. Single-storey rear extensions, two-storey extensions and those conducted on properties facing a public highway will need to adhere to certain limitations.

Insurance for extension projects

Public liability insurance is critical, covering you for damage to your property caused by a builder. However, you’ll want to confer with your home or buildings insurance provider and let them know about the work to ensure you’re covered, too.

Home renovation and extension insurance is available from some providers, which may be worth investigating if your existing insurer can’t cover your work. Some builders may provide a warranty on their work too.

Questions you should ask your extension specialist

  • Will they provide a copy of their public liability insurance?
  • Can they provide a warranty for their work?
  • Do they have examples of their previous renovation projects?
  • Can they give you multiple references of recent extensions they’ve completed?
  • Are they willing to assist with the planning and design phase?

How our service works

  • Create a job - it's free

    We'll connect you with the right tradesperson, from over 30 different trades.

  • Get quotes

    Up to 3 tradespeople can provide a quote, but on average you'll get 1-2.

  • Check ratings

    Look at each tradesperson's profile page to see their ratings and reviews.

  • Pick a tradesperson

    Use our homeowner checklist for extra tips on choosing a tradesperson.

  • Job done

    Leave a rating for your tradesperson based on quality, reliability and value.


Recently completed jobs

Here's what's been happening in and around your area

Size of extension: 3 rooms...

Size of extension: 3 rooms Height of extension: 2 floors Room(s) to be in the extension: bathroom, bedroom(s) It will be a two story extension...

Size of extension: 1 room...

Size of extension: 1 room Height of extension: 1 floor Room(s) to be in the extension: bathroom Need a small en-suite to the side of our bungalow....

Size of extension: 3 rooms...

Size of extension: 3 rooms Height of extension: 2 floors Room(s) to be in the extension: bedroom(s), lounge/living room Just quote at the moment ...

extension at back of property...

Room(s) to be in the conversion: 1 x dining room, 1 x toilet Garage conversion, plus a small extension at the back of the house - 2 levels Planning...

Size of extension: 1 room...

Size of extension: 1 room Height of extension: 1 floor Room(s) to be in the extension: Dog grooming parlour I'm not sure on what I can do, so need...

Size of extension: 1 room...

Size of extension: 1 room Height of extension: 1 floor Room(s) to be in the extension: bathroom Would like it to be as small as possible for a...

Size of extension: 1 room...

Size of extension: 1 room Height of extension: 1 floor Room(s) to be in the extension: dining room We would like to receive quotes for a single...

Size of extension: 4 rooms...

Size of extension: 4 rooms Height of extension: 1 floor Room(s) to be in the extension: bathroom, bedroom(s), kitchen, utility room Rear wrap...

Size of extension: 1 room...

Size of extension: 1 room Height of extension: 1 floor Room(s) to be in the extension: dining room Build to consist of ground works, and build for...

Size of extension: 1 room...

Size of extension: 1 room Height of extension: 1 floor Room(s) to be in the extension: dining room Single story rear extension. To bring dining...

How our service works

  1. Create a job - it's free

    We'll connect you with the right tradesmen, from over 30 different trades.

  2. Get quotes

    Up to 3 tradesmen can provide a quote, but on average you'll get 1-2.

  3. Check ratings

    Look at each tradesperson's profile to see their ratings and reviews.

  4. Pick a tradesperson

    Use our homeowner checklist for extra tips on choosing a tradesperson.

  5. Job done

    Leave a rating for your tradesperson based on quality, reliablity and value.

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