Find an Extension Builder in Knebworth

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Extension Builders in Knebworth

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  • 1-20 of 6,368 extension builders

    We are a reliable Hertford-based building and property maintenance company providing high-quality home improvements, repairs and refurbishment services throughout Hertfordshire and surrounding areas. With strong experience working on residential and...

    Latest Builder Review

    "Harvey was very professional and completed the job in one day despite it being a 2 man job. His partner was unable to work due to illness. The plaster work to the cieling is faultless. Harvey moved the furniture, provided some..."

    Reviewed by on
    Based in SG14 2FF, Hertford
    Extension Builder covering Knebworth
    Member since Nov 2025
    ID Checked

    Independent sole trader. Small builds - patios, gardens, sheds, summerhouses, general tidy-ups, brickwork and general handyman work. Reasonable and fair pricing. References and photos of past work completed available upon request.

    Latest Wooden Decking Review

    "⭐️⭐️⭐️⭐️⭐️ We had an excellent experience working with Joe. He came over to give us a quote and carefully walked us through options that suited a low, mid, and slightly higher budget—which showed how transparent and considera..."

    Reviewed by on
    Based in SG3 6DU, Knebworth
    Extension Builder covering Knebworth
    Member since Mar 2025
    ID Checked

    I am Florin, working as a self employed. As always, I loved to respect my clients and give them my best. ? with hard work to achieve always 5*.

    Latest Concrete Base Review

    "The service was excellent from start to finish. From the original quote, someone came to my house to take the right measurements to quote my job. I was happy with the quote and proceeded with the job. A team of 2 people complete t..."

    Reviewed by on
    Based in SG2 8QR, Stevenage
    Extension Builder covering Knebworth
    Member since Nov 2020
    ID Checked

    After almost 20 years in supply of materials to the Trade, we decided to put our knowledge into practice and deliver high quality, reliable and honest workmanship, utilising a vast database of experienced and highly motivated tradesmen. We have va...

    Based in SG3 6JS, Woolmer Green
    Extension Builder covering Knebworth
    Member since Aug 2024
    ID Checked

    Are you looking to transform your indoor/outdoor space??? K&L Build Design and Maintenance is a trusted building and landscaping company committed to delivering exceptional workmanship and reliable service across every project. Specialising in b...

    Latest Chimney Building / Repair Review

    "Good guys, came in time, done the job, no fuss, left no sign behind after the job. Would recommend."

    Reviewed by on
    Based in WD25 9EU, Watford
    Extension Builder covering Knebworth
    Member since Nov 2025
    ID Checked

    Kings Maintenance • Over 20 year’s experience • Brickwork and Heritage repairs • Ground works • Internal and External repairs and Construction • Kitchen instillations • Office fit outs • Skyvac gutter cleaning • Free quotations and advise

    Latest Structural Steelwork Review

    "This was only a small job but having already been let down by two other tradespeople dealing with Adam was a breath of fresh air. Understood what I wanted immediately and provided a quick, detailed quote. He followed this up by co..."

    Reviewed by on
    Based in AL7 3XF, Welwyn Garden City
    Extension Builder covering Knebworth
    Member since Dec 2024
    Public liability insurance

    NLK Group, based in London, provides bespoke services in carpentry installation, custom-made wardrobes and cabinets, house refurbishments, and various construction projects. Our offerings include: • Kitchen fittings • Fitted wardrobes • Painting...

    Latest Wooden Doors - External Review

    "Naim did a fantastic job with replacing our external doors- front and rear. Communication was great and we are happy with the results."

    Reviewed by on
    Based in WD25 0GD, Watford
    Extension Builder covering Knebworth
    Member since Nov 2016
    ID Checked

    A family business committed to quality, value and client satisfaction in every project. From little kitchen to big extensions

    Latest Garage Conversion Review

    "Great Price , great communication and completed job to high spec , very good team with him"

    Reviewed by on
    Based in HA7 1FP, Stanmore
    Extension Builder covering Knebworth
    Member since Jan 2020
    ID Checked

    Small building contractor, patios, driveways, landscaping, garage and shed bases, painting and decorating. Based in Herts. Fully insured.

    Latest Concrete Base Review

    "Polite, respectful, experienced and skilful. Great tradespeople who I will use in the future for many varied tasks and projects."

    Reviewed by on
    Based in AL1 5ST, Saint Albans
    Extension Builder covering Knebworth
    Member since Jul 2025
    ID Checked

    2Rok cons is a dynamic and experienced team, committed to providing excellence in general building and constructions, lateral thinking and innovation solutions to our clients. With a portfolio covering a wide range of construction projects, we are pr...

    Latest Builder Review

    "2Rok cons ltd has just finished creating our dream Kitchen. From our first meeting to finishing the project, they listened to what we wanted and gave us design and material guidance for our kitchen extension. We are very fussy wit..."

    Reviewed by on
    Based in WD7 7LW, Radlett
    Extension Builder covering Knebworth
    Member since Nov 2023
    ID Checked

    Based in Stevenage, we are a trusted, local building company with many years experience in the construction industry. Serving Hertfordshire, Bedfordshire, Cambridgeshire, and North London, we specialize in building extensions but also undertake a wid...

    Based in SG2 8UW, Stevenage
    Extension Builder covering Knebworth
    Member since Sep 2024
    ID Checked

    We are pleased to introduce ourselves as a construction company. We are experienced in a wide range of construction projects, from residential to commercial buildings. We believe in providing high-quality services at a fair price. We take pride in o...

    Based in SG2 9BU, Stevenage
    Extension Builder covering Knebworth
    Member since Oct 2023
    ID Checked

    Hi we're Harry & Josh property services, we have 14 years experience and a team of highly skilled tradesman to turn your home into a dream. Please contact us if you would like a free quotation.

    Based in SG2 8ER, Stevenage
    Extension Builder covering Knebworth
    Member since Dec 2024
    ID Checked

    Mead Maintenance are a young, vibrant company who are reliable and professional and dedicated to designs and finishes of the highest quality and tailored personally for the customer. We are based in North Hertfordshire and cover all surrounding areas...

    Based in SG2 9YE, Stevenage
    Extension Builder covering Knebworth
    Member since Apr 2023

    "Covering all aspects of building work from groundworks up to roofing, extensions, alterations, renovations, conversions, Landscaping & property maintenance. I am a reliable builder/tradesman, who is professional, tidy and committed to ensur...

    Based in SG2 9NB, Stevenage
    Extension Builder covering Knebworth
    Member since Aug 2022

    JCU who are we? We are a company that started as a dream by the director Joe Abbott. To build a better construction and plant hire image and take away the stress away from building your future. We own various plant that will help you drive costs dow...

    Based in AL6 9SU, Welwyn
    Extension Builder covering Knebworth
    Member since Jan 2023
    ID Checked

    F&F Home improvements is a family run business in Stevenage.With over twenty years experience in the building industry. We specialise in all aspects of construction from kitchens, bathrooms extensions and all hard landscape . Fully insured with publi...

    Based in SG2 9UL, Stevenage
    Extension Builder covering Knebworth
    Member since Jan 2022
    ID Checked

    Welcome to Robson Carpentry Ltd, your local carpentry experts in London specializing in residential refurbishing and design. Whether you’re looking to update the look and feel of your home or take on a major renovation project, our skilled carpenters...

    Based in SG1 1AX, Stevenage
    Extension Builder covering Knebworth
    Member since Apr 2021
    ID Checked

    All building work, from new builds to garden walls, paving,driveways, plastering

    Based in SG1 1PW, Stevenage
    Extension Builder covering Knebworth
    Member since Oct 2023
    ID Checked

    We are a Family run Building company that specialise in Full House Renovations, Extension, Garage Conversions, Kitchens & Bathrooms as well as Painting & Decorating! Our team has over 35 years experience in the building trade. We have all asp...

    Based in SG2 7BN, Stevenage
    Extension Builder covering Knebworth
    Member since Mar 2024
    ID Checked
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    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

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    Recently posted Extension Builders jobs

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

    Job posted in Sandy

    Plan to have built a small rear single storey extension to rear of house from dining area and abutting to existing kitchen extension (two walls and a...

    Job posted in Mill Hill

    there is currently a conservatory in situ and i want to replace this with a proper extension

    Job posted in Bedford

    Double storey front extension 3m by 6m Double storey rear extension 3m by 6m Another 5m rear single extension with Apex roof. Planning in place and...

    Job posted in Wanstead

    Single storey L-shaped wraparound extension to ground floor kitchen to create kitchen diner space. Current kitchen is 7.5m2 and proposed is 22m2

    Job posted in Waltham Cross

    Footings dug and filled, concrete floor and brease block walls built

    Job posted in Sandy

    Plan to have built a small rear single storey extension to rear of house from dining area and abutting to existing kitchen extension (two walls and a...

    Job posted in Mill Hill

    there is currently a conservatory in situ and i want to replace this with a proper extension

    Job posted in Bedford

    Double storey front extension 3m by 6m Double storey rear extension 3m by 6m Another 5m rear single extension with Apex roof. Planning in place and...

    Job posted in Wanstead

    Single storey L-shaped wraparound extension to ground floor kitchen to create kitchen diner space. Current kitchen is 7.5m2 and proposed is 22m2

    Job posted in Waltham Cross

    Footings dug and filled, concrete floor and brease block walls built

    Job posted in Luton

    Skimming on one wall as part of wall has been taken off so need builder

    Job posted in Luton

    Looking to Build a double storey rear extension lower 27m squared upper 12m squared . Lower has kitchen upper will be ensuite , drawings done , appova...

    Job posted in Childs Hill

    I’m in a conservation area and can only extend my kitchen that’s 2.5m wide out by 2m so adding a total of 5m^2

    Job posted in Chingford

    Build single storey extension where the kitchen, dining room and additional bathroom will be. Approximately 27sqm

    Job posted in Luton

    Looking to Build a double storey rear extension lower 27m squared upper 12m squared . Lower has kitchen upper will be ensuite , drawings done , appova...

    Job posted in Luton

    Skimming on one wall as part of wall has been taken off so need builder

    Job posted in Luton

    Looking to Build a double storey rear extension lower 27m squared upper 12m squared . Lower has kitchen upper will be ensuite , drawings done , appova...

    Job posted in Childs Hill

    I’m in a conservation area and can only extend my kitchen that’s 2.5m wide out by 2m so adding a total of 5m^2

    Job posted in Chingford

    Build single storey extension where the kitchen, dining room and additional bathroom will be. Approximately 27sqm

    Job posted in Luton

    Looking to Build a double storey rear extension lower 27m squared upper 12m squared . Lower has kitchen upper will be ensuite , drawings done , appova...

    Job posted in Chalfont Saint Giles

    Build a double storey extension at the back of the house, for a kitchen diner, adding one bedroom and moving the bathroom upstairs.

    Job posted in Luton

    Rear extension and Annexe in the garden

    Job posted in Brunswick Park

    Garage There is a garage now but I need to extend it to put a motorised garage door close to the pedestrian path Pictures White and red wall to raise...

    Job posted in Noel Park

    Single storey extension maximum 3 metre length of existing L shape house - the house is in the Noel Park conservation area in Wood Green and the exten...

    Job posted in Romford

    I want to extend living room and kitchen

    Job posted in Chalfont Saint Giles

    Build a double storey extension at the back of the house, for a kitchen diner, adding one bedroom and moving the bathroom upstairs.

    Job posted in Luton

    Rear extension and Annexe in the garden

    Job posted in Brunswick Park

    Garage There is a garage now but I need to extend it to put a motorised garage door close to the pedestrian path Pictures White and red wall to raise...

    Job posted in Noel Park

    Single storey extension maximum 3 metre length of existing L shape house - the house is in the Noel Park conservation area in Wood Green and the exten...

    Job posted in Romford

    I want to extend living room and kitchen

    Job posted in Baldock

    Existing property is a 2 story semi. Job is to build a double-story extension 5m wide x 3m deep, with a master bedroom in the pitched roof space on t...

    Job posted in Notting Hill

    I’ve just gotten planning permission for a small balcony off my dining room and a portico on the front of my house. I need someone to build both. Than...

    Job posted in Wanstead

    Build a kitchen diner extension at the back of the house with skylights

    Job posted in Hatfield

    - Roof metal sheeting to be replaced with traditional timber rafters and tiles. Add 300mm rock wool insulation at ceiling level. ○ Rafter: 47*150c2...

    Job posted in Palmers Green

    Build single storey wraparound extension

    Job posted in Baldock

    Existing property is a 2 story semi. Job is to build a double-story extension 5m wide x 3m deep, with a master bedroom in the pitched roof space on t...

    Job posted in Notting Hill

    I’ve just gotten planning permission for a small balcony off my dining room and a portico on the front of my house. I need someone to build both. Than...

    Job posted in Wanstead

    Build a kitchen diner extension at the back of the house with skylights

    Job posted in Hatfield

    - Roof metal sheeting to be replaced with traditional timber rafters and tiles. Add 300mm rock wool insulation at ceiling level. ○ Rafter: 47*150c2...

    Job posted in Palmers Green

    Build single storey wraparound extension

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