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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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MODERN LIVING SPACE CONSERVATORIES ALL STYLES AND DESIGNS OVER 30 YEARS EXPERIENCE FREE NO OBLIGATION QUOTATION LOCAL COMPANY FAMILY RUN FREE COMPUTER CAD DRAWING BEAT ANY LIKE FOR LIKE QUOTE

Latest homeowner review

Reviewed by Amelia imogen on 9/11/2019

Tony and his team were brilliant... Really professional and helpful. Communication was very good throughout the process... Only at the end when I was a bit busy did a few small things come up, but that was as much my responsibility as the builders. Thanks for guiding us through what would otherwise have been a very stressful time! Really glad we went through Rated People and got a good un!

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 Chris on 5/11/2019

Very pleased with the work done. Richard turned up on time each day and was a pleasant and cheery chap to have around the house. The work was completed as per quotation with no extras. Will definitely use again.

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.

GARAGE CONVERSION SPECIALISTS. A family run company established 10 years. Fully insured, all employees and sub contractors cscs trained/qualified. All works completed to a high standard at competitive prices

Latest homeowner review

Reviewed by Billy on 17/1/2020

Very well priced, completed on time and was very pleased with work Carried out, communicates well and turns up when he says, overall very pleased, would highly reccomend.

ALSO BEING MEMBER OF FEDERATION OF MASTER BUILDERS, GEO SKY SPECIALIZES IN THE FOLLOWING AREAS: 1. REAR AND SIDE EXTENSIONS. 2. ALL TYPES OF LOFT CONVERSIONS 3. BATHROOM REFURBISHMENTS. 4. COMPLETE KITCHEN RENOVATIONS. 5.INTERNAL RECONFIGURATIONS AND RENOVATIONS INCLUDING STRUCTURAL CHANGES. 6. GUARANTEED BUILDING CONTROL SIGN OFF. 7.GAS SAFE, ELECTRICAL AND OTHER RELEVANT CERTIFICATES ISSUED THROUGH OUR VETTED SUB-CONTRACTORS. 8. FMB PUBLIC AND EMPLOYERS LIABILITY INSURANCE UP TO FIVE AND TEN MILLION RESPECTIVELY. 9. OUR WORKMANSHIP COMES WITH 2 - 25 YEARS GUARANTEE, DEPENDING ON THE TYPE OF THE WORKS UNDERTAKEN. 10 JCT CONTRACT OFFERED

Latest homeowner review

Reviewed by Shab on 27/1/2020

The work involved crane lifting several large steel beams into a 7th (top) floor apartment, removing a 9 metre long supporting wall and fitting the beams into place to support the rooftop. Getting this wrong would have been catastrophic! I needn't have worried GeoSky handled the whole job with superb professionalism, excellent communication...even saving the day by finding issues that my structural engineer had missed! The price was very competitive and I've no hesitation in recommending them. Thank You!

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.

Allen Building is an established construction company in Cardiff. We have been in business for 15 years. we have a solid portfolio and many references to our name. We are all so accredited Master builders by the F.M.B www.abuilderscardiff.co.u

Latest homeowner review

Reviewed by peter on 11/11/2019

We are very pleased with Matt’s work for us -he is organised ,takes pride in the job and makes helpful suggestions.He delivered our project to the agreed timeline and was a pleasure to work with . We have no hesitation in recommending Matt to other people .

CMR Construction is a family run business with over 30 years experience in the building trade. We are capable of most jobs but specialise in loft conversations/extensions. We offer a professional friendly reliable service with customer satisfaction.

Latest homeowner review

Reviewed by Suzanne on 27/10/2019

We had a single story extension completed in approximately 10 weeks, which was less time than we had expected. The quality of the work was excellent, we cannot fault it. There were no unexpected costs and the whole project was managed very efficiently throughout. Carl the builder came everyday at the same time each morning and kept us up to date with everything that was happening. Everything was tidied up really well at the end of each day. I would highly recommend CMR construction.

Lindley Developments are committed to offering first class products and services at competitive prices. We have over 40 years experience in the construction industry, providing roofing works, building, Internal alterations and all types of glazing.

Latest homeowner review

Reviewed by Brian on 23/10/2019

I have no hesitation in recommending this this company/team. They delivered what they promised and fitted in the actual work in a very narrow time period (due to weather requirements) within the expected timescale. I would use them again for similar work

We are well established business with highly qualified tradesmen that are at your service at a short notice. We provide quality installations, service and emergency cover of all plumbing and heating applications. We carry out all building works in higher standards. We can help you with planning permission you need to apply for Thank you

Latest homeowner review

Reviewed by Gill on 17/11/2019

Very professional and clean tidy. He finished the work in the time and did very good job

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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?

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  • Get quotes

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  • Job done

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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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