Find an Extension Builder in Thorney Island

Find a local extension builder near you. We have 1,144 trusted and reviewed extension builders in Thorney Island to choose from, based on 845 reviews.





POST YOUR JOB

Tell us about the work you need doing around your home.

RECEIVE UP TO 3 QUOTES

Up to 3 Extension Builders in Thorney Island will then be in touch to quote for the work.

CHOOSE YOUR EXTENSION BUILDER

Compare quotes then choose your preferred Thorney Island Extension Builder.

Extension Builders in Thorney Island

Filter by:

  • Within 60 minutes
    • Within 60 minutes
    • Within 45 minutes
    • Within 30 minutes
    • Within 20 minutes
    • Within 10 minutes
  • Any rating
    • Any rating
    • 5 star rating
    • 4 star rating
    • 3 star rating
  • Sort by:

  • Recommended
    • Recommended
    • Closest
    • Most reviews
    • Highest rating
  • 1-19 of 1,144 extension builders

    Groves Groundworks is a new business with plenty of experience behind it. I have been in the industry for over 15 years. I am experienced in all aspects of groundworks and landscaping. What I offer is as follows Foundations Extensions Drainage S...

    Latest Groundwork Review

    "Friendly and efficient service. Very helpful."

    Reviewed by on
    Based in PO8 9RS, Waterlooville
    Extension Builder covering Thorney Island
    Member since Aug 2026
    ID Checked

    I work as a Surveyor/Multi Trader. I complete works in All Major chain Public houses & Restaurants Major high street stores refurbishments to new works. I also complete private works. That covers all aspects of construction/ Buildings/Property De...

    Latest Damp Proofing Review

    "Scott did a faultless job removing bricks from my chimney breast and smoothing the plaster behind. He turned up on time, on the days that were arranged, and charged the exact amount quoted. Scott is polite, professional and left t..."

    Reviewed by on
    Based in PO16 9JT, Portchester
    Extension Builder covering Thorney Island
    Member since Sep 2023
    Public liability insurance

    SC Multi Trade Services is a professional and reliable multi-trade company based in Havant, covering all areas across the South Coast. With years of experience in the trade industry, we provide high-quality workmanship across a wide range of service...

    Latest General Maintenance Review

    "Helpful, professional, clean and tidy. Would happily recommend and would definitely use again"

    Reviewed by on
    Based in PO9 4HD, Havant
    Extension Builder covering Thorney Island
    Member since Jun 2026
    Public liability insurance

    We are a multi skilled work force covering all general building/ shop fitting We also cover work abroad Welding Electrical Carpentry Floor laying Tiling

    Based in PO10 8LE, Emsworth
    Extension Builder covering Thorney Island
    Member since Aug 2014

    I / we are a team of very skilled builders that have spent the last 20 plus years serving a very large construction company. We have turned over some very large projects i.e 300 tonne of steel with the demolition into a large project in Chichester,...

    Based in PO10 8NZ, Emsworth
    Extension Builder covering Thorney Island
    Member since May 2020
    ID Checked

    Raise and Renovate is a family company which provides a prompt service, affordability and we care for the customers needs. We can carry out full refurbishments and conversions, plastering, brickwork, landscaping and any general building work.

    Latest Garden Shed / Playhouse Review

    "Excellent service from start to finish from Raise and Renovate. Wayne was able to undertake the job of laying a concrete shed base within a short timescale. The price was competitive, communication was excellent, and the standard..."

    Reviewed by on
    Based in BN13 2RH, Worthing
    Extension Builder covering Thorney Island
    Member since Sep 2026
    Public liability insurance

    JBS Brickwork is a fully insured brickwork and landscaping contractor based in Chichester, West Sussex. We take on everything from small repairs to large-scale projects — and we do every job properly. Backed by over 40 years of construction experien...

    Latest Concrete Base Review

    "Very professional and completed the work to a high standard. The site was left clean and tidy with all rubbish taken away for disposal."

    Reviewed by on
    Based in PO20 3RB, Westergate
    Extension Builder covering Thorney Island
    Member since Jun 2026
    Public liability insurance

    About Niko’s Plumbing and Heating Services At Niko’s Plumbing and Heating Services, we specialize in central heating systems, boiler installations, repairs, and full bathroom refurbishments for both domestic and commercial customers. Our experienced...

    Latest Kitchen Sinks & Taps Review

    "Nikio gave a fair quote for the job we needed doing Not a very big job but fiddly. He completed the job very professionally and we are very pleased with the finished job. He is an extremely pleasant young man and we would recomm..."

    Reviewed by on
    Based in PO7 5NR, Waterlooville
    Extension Builder covering Thorney Island
    Member since Aug 2021
    ID Checked

    Portchester Property Developments With over 20 years’ experience in the building trade, we provide reliable, high-quality workmanship across Hampshire. We cover all aspects of building and property maintenance, from small repairs to larger projects,...

    Latest uPVC Windows & Door Review

    "Polite, friendly, hardworking and did an excellent job and definitely went the extra mile"

    Reviewed by on
    Based in PO5 4BA, Portsmouth
    Extension Builder covering Thorney Island
    Member since Apr 2026
    ID Checked

    Nell Developments Ltd is a Portsmouth based construction and property maintenance company working across Hampshire and the surrounding areas. We provide commercial and domestic building services, covering everything from small repairs and reactive m...

    Latest Internal Doors Review

    "Work was carried out to a high standard in accordance with the detailed quote provided"

    Reviewed by on
    Based in PO7 3BH, Waterlooville
    Extension Builder covering Thorney Island
    Member since Dec 2025
    ID Checked

    Hi, my name is Scott. I have over 25 years experience in the building industry. I can do any building work that is required from Extensions to chimney take down and roofed over new build projects and refurbishment,steels installed and repointing jobs...

    Latest Underpinning / Foundation Review

    "Excellent guy and work. However, the injection holes could have been filled and hidden. Overall, a great a job well done."

    Reviewed by on
    Based in SO15 3LT, Southampton
    Extension Builder covering Thorney Island
    Member since Jun 2025
    ID Checked

    All general building work including damp proofing and roofing work undertaken in the Hampshire area, guarantees provided, 24 hour call out, proud member of trust a trader 100+reviews ✅

    Latest Roof Repair Review

    "Rapid response, helpful, great communication, come and repaired the leak - will be in touch for remaining jobs in the near future"

    Reviewed by on
    Based in PO3 6BQ, Portsmouth
    Extension Builder covering Thorney Island
    Member since Apr 2023
    ID Checked

    Hello and welcome to boundary oaks landscape & construction a company that strives to deliver your dream space to your property with over 25 years of experience with in our trades all off our work is finished to the highest possible standard to ensur...

    Latest Repointing Review

    "Paul and his team were very efficient and worked hard under very testing conditions would recommend him to anyone"

    Reviewed by on
    Based in PO3, Portsmouth
    Extension Builder covering Thorney Island
    Member since Dec 2025
    ID Checked
    Latest Wooden Doors - External Review

    "The job was done to a very good standard and at the time agreed. Although it overran by a day, probably due to the heat this week, I am happy with the outcome. The premises were left clean and tidy at the end of each day. Will use..."

    Reviewed by on
    Based in SO19 4DJ, Southampton
    Extension Builder covering Thorney Island
    Member since May 2022
    ID Checked

    We are a fully qualified and insured building company with over 40 years experience. We have a reputation for quality workmanship at competitive prices, and intend to leave the customer satisfied with the workmanship and improvements.

    Latest Brick/Block Paving Review

    "Darren and his team did a great job installing a 7x3m concrete patch in our garden. Communication was good before and during work. On the day, they've arrived on time, they've used a protective layer on our drive where they stored..."

    Reviewed by on
    Based in SO30 0HW, Hedge End
    Extension Builder covering Thorney Island
    Member since Jul 2024
    Public liability insurance

    JJUBS Construction Group specialises in residential building, groundworks, and exterior improvements, with a strong focus on quality, reliability, and long-lasting results. We manage and deliver projects from start to finish, coordinating every stag...

    Latest Fencing & Gates Review

    "Very good service. Genuine company with good standards and very pleasant to work with."

    Reviewed by on
    Based in SO31 9GH, Warsash
    Extension Builder covering Thorney Island
    Member since Feb 2026
    ID Checked

    Local Bricklayer doing all aspects of building work from garden walls re-pointing to extensions

    Latest General Brick Laying Review

    "On time, in budget, polite, great workmanship. Couldn’t fault."

    Reviewed by on
    Based in PO12 1BW, Gosport
    Extension Builder covering Thorney Island
    Member since Feb 2026
    ID Checked

    Hi I’m John owner of JFBrickwork & Building Services LTD. I started out in the early 1990s as a qualified bricklayer house building on sites for about 18 years, I then started out on my own doing extensions, walls and any building work . I pride mys...

    Latest Builder Review

    "Have used John a-few times, first time he built our extension , very pleased with the work he completed, then he done our garden, a few low walls, forming flower beds and also done our patio overall we would not hesitate to recomm..."

    Reviewed by on
    Based in PO8 8PR, Waterlooville
    Extension Builder covering Thorney Island
    Member since Jan 2026
    Public liability insurance

    Roofing company covering all aspects of pitched and flat roofing Public liability insurance and all our work is guaranteed for 10 years

    Latest Chimney Building / Repair Review

    "Very good thanks."

    Reviewed by on
    Based in PO6 2RJ, Portsmouth
    Extension Builder covering Thorney Island
    Member since Mar 2026
    ID Checked
    Become a member

    Over 50,000 tradespeople nationwide use MyJobQuote

    Sign up as a trade
    Our Reviews

    All reviews are submitted by homeowners who have had work completed as part of using our service. Whilst every effort is made to verify and check reviews, we ask all homeowners to conduct their own research and follow our Homeowner Checklist before hiring.

    To understand more about our reviews process, please visit our Reviews Policy.

    Find Extension Builders Near You

    Trusted Extension Builders in other locations

    Show more

    Recently posted Extension Builders jobs

    Join over 1,000,000 happy homeowners who have posted their job on MyJobQuote.

    Job posted in BOGNOR REGIS

    Wanting to square off an L shape room and add a first floor on top. Can do internal work, looking for someone to do groundwork, move a couple of drain...

    Job posted in Southampton

    Change conservatory to single story extension with skylights extending out corners to square off the shape. With Bi-Fold doors to garden. Current con...

    Job posted in Southampton

    There is an existing conservatory (used as utility room) built in the angle between the rear of the garage and the house. We want this removed and a n...

    Job posted in Littlehampton

    I am looking for a price to extend my house to the rear of up to four metres long and ten metres wide. I have a four bedroom detached house and looki...

    Job posted in Worthing

    We are seeking competitive quotes for the construction of a wrap around single-storey rear extension and integral garage . The works are to be complet...

    Job posted in BOGNOR REGIS

    Wanting to square off an L shape room and add a first floor on top. Can do internal work, looking for someone to do groundwork, move a couple of drain...

    Job posted in Southampton

    Change conservatory to single story extension with skylights extending out corners to square off the shape. With Bi-Fold doors to garden. Current con...

    Job posted in Southampton

    There is an existing conservatory (used as utility room) built in the angle between the rear of the garage and the house. We want this removed and a n...

    Job posted in Littlehampton

    I am looking for a price to extend my house to the rear of up to four metres long and ten metres wide. I have a four bedroom detached house and looki...

    Job posted in Worthing

    We are seeking competitive quotes for the construction of a wrap around single-storey rear extension and integral garage . The works are to be complet...

    Job posted in Arundel

    2 storey extension extending from side of property, kitching, living room down stairs and yhe bedrooms upstairs

    Job posted in Portsmouth

    I have a conservatory and I want to change to kitchen within a month

    Job posted in Godalming

    A single story extension to the rear of a house to add another bedroom

    Job posted in Ryde

    Looking to build a single storey extension at my property

    Job posted in Bordon

    Conversation of garage raised floor, Size is 3m x3800m, length of posi joists are 3100mm long. Sub walls beneath floor. (En-suite ) internal wall 1250...

    Job posted in Arundel

    2 storey extension extending from side of property, kitching, living room down stairs and yhe bedrooms upstairs

    Job posted in Portsmouth

    I have a conservatory and I want to change to kitchen within a month

    Job posted in Godalming

    A single story extension to the rear of a house to add another bedroom

    Job posted in Ryde

    Looking to build a single storey extension at my property

    Job posted in Bordon

    Conversation of garage raised floor, Size is 3m x3800m, length of posi joists are 3100mm long. Sub walls beneath floor. (En-suite ) internal wall 1250...

    Job posted in Southampton

    Need a flexible joint put in on a single storey extension wall. Concrete brick outer skin Breeze block inner skin Needs to be done to building r...

    Job posted in Southampton

    2 story side extension extend kitchen out add utility room and toilet upstairs add a 4th bedroom and extend 3rd bedroom

    Job posted in Southampton

    Need a flexible joint put in on a single storey extension wall. Concrete brick outer skin Breeze block inner skin Needs to be done to building r...

    Job posted in Southampton

    I'm looking for quotes and to see if the work can be done

    Job posted in Chichester

    put heavy kitchen cupboards on wall

    Job posted in Southampton

    Need a flexible joint put in on a single storey extension wall. Concrete brick outer skin Breeze block inner skin Needs to be done to building r...

    Job posted in Southampton

    2 story side extension extend kitchen out add utility room and toilet upstairs add a 4th bedroom and extend 3rd bedroom

    Job posted in Southampton

    Need a flexible joint put in on a single storey extension wall. Concrete brick outer skin Breeze block inner skin Needs to be done to building r...

    Job posted in Southampton

    I'm looking for quotes and to see if the work can be done

    Job posted in Chichester

    put heavy kitchen cupboards on wall

    Job posted in Gosport

    Build up and out onto a bungalow

    Job posted in Winchester

    Convert garage into study, create a new porch at the front of the house. Add in skylights and front window

    Job posted in LANCING

    Need some OSB boards changing to weather resist and then some cement board cladding to existing extention . Some rendering work required too.

    Job posted in Tadley

    Change existing conservatory to kitchen and extend.

    Job posted in Farnborough

    BUILD SINGLE STOREY EXTENTION TO THE SIDE OF THE HOUSE TO GO OUT 5FT X 30FT ACROSS

    Job posted in Gosport

    Build up and out onto a bungalow

    Job posted in Winchester

    Convert garage into study, create a new porch at the front of the house. Add in skylights and front window

    Job posted in LANCING

    Need some OSB boards changing to weather resist and then some cement board cladding to existing extention . Some rendering work required too.

    Job posted in Tadley

    Change existing conservatory to kitchen and extend.

    Job posted in Farnborough

    BUILD SINGLE STOREY EXTENTION TO THE SIDE OF THE HOUSE TO GO OUT 5FT X 30FT ACROSS

    Post your job Sign up as a trade
    Are you a trade? Become a member and get access to local jobs today!
    See demand near you
    Ready to find a tradesman near you?

    Over 1 million homeowners and over 50,000 tradespeople
    use MyJobQuote nationwide each year