Find an Extension Builder in Hertfordshire

Find a local extension builder near you. We have 8,482 trusted and reviewed extension builders in Hertfordshire to choose from, based on 3,767 reviews.





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Extension Builders in Hertfordshire

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  • 1-20 of 8,482 extension builders

    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 Hertfordshire
    Member since Mar 2025
    ID Checked

    Profesional bricklayer with over 15 years experience and hundred of Jobs finnished and happy clients.

    Latest Garden Wall Review

    "Stefan was excellent, he built me a mini brick shed for my pottery kiln. He did the work quickly and efficiently and the shed is perfect for my need as he spent time researching how to make the shed both water proof and fire safe..."

    Reviewed by on
    Based in NW10 0BD, London
    Extension Builder covering Hertfordshire
    Member since May 2022
    ID Checked

    MPRO Homes LTD is a trusted building company specialising in both residential and commercial projects across London. With over 15 years of industry expertise, we deliver exceptional craftsmanship and a customer-focused approach. From full house renov...

    Latest Builder Review

    "I have used Oni and his team for multiple projects over the years. Recently they did an incredible job building a large office and workshop in my garden. From start to finish, they were professional, efficient, and a pleasure to w..."

    Reviewed by on
    Based in AL10 9QT, Hatfield
    Extension Builder covering Hertfordshire
    Member since Dec 2022
    ID Checked

    We have a well run business for all your building needs, we supply work from foundations to a full finish project, landscaping building extensions and full refurbs. Find us on Facebook RB Builders

    Latest Extension Review

    "Excellent job throughout."

    Reviewed by on
    Based in LU1 4HE, Caddington
    Extension Builder covering Hertfordshire
    Member since Dec 2019

    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 Hertfordshire
    Member since Nov 2020
    ID Checked

    More then a decade of experience in uk domestic building i am a excelent carpenter and I have big experience in roofing (pich roof flat roof etc) good skill in painting,tiling,plastering,drylining etc We are a complete team with including all the spe...

    Latest Log Cabins / Timber Framed Building Review

    "A fantastic and amazing friendly customer care and service , together with a very perfessional 100 % 100% craftsmanship, very reliable delivered on his work ,I will be using his services again,I will be highly recommending his s..."

    Reviewed by on
    Based in HA5 4HR, Pinner
    Extension Builder covering Hertfordshire
    Member since Mar 2023
    ID Checked

    Ex site manager with a lot of experience in build and technical. Very well informed in regards to building control. No job too small, please get in touch to see how I can help bring your project to life.

    Latest Builder Review

    "This is the second time I’ve used Oz and I’m delighted with the quality of the work. Oz has a wealth of experience and knows how to do things properly. He really cares about the quality of his work, and is a great problem solver a..."

    Reviewed by on
    Based in LU1 5LG, Luton
    Extension Builder covering Hertfordshire
    Member since May 2024
    ID Checked

    We are a small family run building company with 25 plus years of experience. We specialise in property refurbishments and maintenance for homeowners and landlords, undertaking all aspects of planned and reactive building and maintenance work, no job...

    Latest Repointing Review

    "Danny is very responsive. Right from making first contact. I like good communication as I feel it is very important to building any sort of relationships with people you have to work with. He is also polite, friendly and very prof..."

    Reviewed by on
    Based in DA18 4HB, Erith
    Extension Builder covering Hertfordshire
    Member since Dec 2024
    Public liability insurance

    Maylands Construction is dedicated to providing all things residential service’s. We provide our customers with high-quality service at a reasonable price. So, why delay? Contact us today to learn more about our services and how we can assist you wi...

    Latest Extension Review

    "Very prompt with time Had a good idea of what we wanted"

    Reviewed by on
    Based in DA14 4SB, Sidcup
    Extension Builder covering Hertfordshire
    Member since Dec 2024
    ID Checked

    We are a small family business and have over 40 years experience We carry out work in Herts Beds Bucks We carry out Fencing and Gates Repairs and Renewals External/Internal Repairs and Decorating We are fully insured and our inspections quotes and ad...

    Latest Chimney Building / Repair Review

    "Very happy, will definitely use Gary again."

    Reviewed by on
    Based in HA8 6SD, Edgware
    Extension Builder covering Hertfordshire
    Member since Mar 2025
    Public liability insurance

    We are a team of experienced tradespeople, we carry out all aspects of building work Listed below are types of work we carry Brickwork Carpentry Decorating Ground work Gutters Landscaping Roofing Plastering Property maintenance Just to na...

    Latest General Maintenance Review

    "Steve and the team recently knocked down an internal load baring wall and knocked through an external wall for the installation of bifold doors. They have done a great job and were polite, tidy and very helpful. I would recommend..."

    Reviewed by on
    Based in HP14 3XB, High Wycombe
    Extension Builder covering Hertfordshire
    Member since Aug 2022
    ID Checked

    Brother construction is truly trustworthy team to build up your dream houses. We do all kind of work Extensions Loft conversions Bathrooms renovation Plastering Skimming Painting Roofing Electric Feel free to conact with us Free qoutes also availa...

    Latest Extension Review

    "They completed the job as promised and I was satisfied with their work."

    Reviewed by on
    Based in UB4 0BZ, Hayes
    Extension Builder covering Hertfordshire
    Member since May 2024
    ID Checked

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

    Latest Brick/Block Paving Review

    "Adam did a fantastic job, communication was great and he completed the job within the week. Pricing was fair. Would definitely recommend"

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

    London Prime Construction and Builders specialises in creating beautiful and functional living spaces through expert home construction, renovations, and interior transformations. From building new homes to extending existing spaces and revitalising i...

    Latest Fitted Bedroom Review

    "Fantastic company, with high quality materials and construction. Came in on budget and fast completion time too. We have since commissioned them again for another home renovation job. Highly recommended."

    Reviewed by on
    Based in UB7 9BL, West Drayton
    Extension Builder covering Hertfordshire
    Member since Sep 2024
    Public liability insurance

    Covering Areas ? Brent, Barnet, Harrow, Ealing, Hillingdon, Watford, Camden, and wider London Our Services ? Construction & Renovation • ? New builds & extensions • ? Loft conversions & basements • ? Structural alterations & ref...

    Latest Builder Review

    "Very pleased with the quality and timely completion of the job. Most happy that the team were forward thinking and suggested future wiring applications for doorbell and interior/exterior lighting. Something I would have needed at..."

    Reviewed by on
    Based in NW9 0DG, London
    Extension Builder covering Hertfordshire
    Member since Mar 2025
    ID Checked

    Builders with 35years experience in all.aspects of building ,all nvq tradesman fully insured and we guarantee all work

    Latest Extension Review

    "Had my extension completed by dbs I must say the knowledge and craftsmanship is spot on extremely happy with the work and communication carried out Dave went above and beyond to meet my needs and also for future ! Thanks once ag..."

    Reviewed by on
    Based in SS17 8QW, Stanford-le-hope
    Extension Builder covering Hertfordshire
    Member since Sep 2024
    ID Checked

    We are a building company who covers everything…..

    Latest General Maintenance Review

    "The team arrived on time and completed the task efficiently. They were respectful of my property and left everything clean and tidy. I would be happy to use Cambs Builders again again."

    Reviewed by on
    Based in SG8 5QG, Orwell
    Extension Builder covering Hertfordshire
    Member since Feb 2024
    ID Checked

    General builder with 35 years plus experience in all aspects of building works covering carpentry, plastering, rendering/ pebble dash, kitchen fit, basic plumbing, basic electrical, fencing, Honest, reliable and local, you won't be disappointed.

    Latest Septic Tanks & Soakaway Review

    "Done a great job! Andrew’s work area was clean and tidy, the job was done very thoroughly. Andrew was was respectful and co operative in keeping with the nature of the business. Friendly and personable. Definitely would use Andre..."

    Reviewed by on
    Based in LU4 9TE, Luton
    Extension Builder covering Hertfordshire
    Member since Nov 2024
    Public liability insurance

    Hi my name is ian lamont ,a time served bricklayer since the age of 16 and some 50 years experience since , I am now a qualified construction and civil engineering manager My company is small with a hard working team all trades , we cover all work...

    Latest Porch / Canopy Review

    "welldone jo very good Communication Very good job worth money advicesuggetion well aprreciated. time keeping"

    Reviewed by on
    Based in EN3 5UT, Enfield
    Extension Builder covering Hertfordshire
    Member since Oct 2019
    ID Checked

    JK Building Services established in 1998,has build a solid reputation for providing quality work at affordable prices . We are specialist in house extensions, renovations,full refurbishments, all general building work. Also: Repointing Decking Fenc...

    Latest Extension Review

    "Jacek did an excellent job & would highly recommend. He managed to complete the work on time and for the price he quoted and is trustworthy and reliable!"

    Reviewed by on
    Based in KT3 3EJ, New Malden
    Extension Builder covering Hertfordshire
    Member since Jun 2023
    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.

    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 Ilford

    BUILD 30SQ METER EXTENSION REAR OF THE PROPERTY

    Job posted in Harrow

    Straighten detached wall of semi detached property.

    Job posted in Dunstable

    2m x 3m glass side extension coming out of side of kitchen which is a previous extension

    Job posted in Milton Keynes

    Double story house extension with reconfiguring the current house floor plan. Approx 30 square meters A house we are looking to purchase, however need...

    Job posted in Clapham Junction

    Ground floor garden flat to be extended with side return. Currently in the process of offering on the property. Looking for an indication of costs inv...

    Job posted in Ilford

    BUILD 30SQ METER EXTENSION REAR OF THE PROPERTY

    Job posted in Harrow

    Straighten detached wall of semi detached property.

    Job posted in Dunstable

    2m x 3m glass side extension coming out of side of kitchen which is a previous extension

    Job posted in Milton Keynes

    Double story house extension with reconfiguring the current house floor plan. Approx 30 square meters A house we are looking to purchase, however need...

    Job posted in Clapham Junction

    Ground floor garden flat to be extended with side return. Currently in the process of offering on the property. Looking for an indication of costs inv...

    Job posted in Slough

    I need a quotation for the complete Build of House Extension, which includes a new Kitchen, Shower Room and Family Sitting Room. This includes all ele...

    Job posted in Hendon

    Refurbishment of a shop in hendon for an estate agent

    Job posted in Watford

    Extension on the back of the property into the garden (kitchen/dining room, diner / utility and storage). Multiple pieces of work required: 1) Founda...

    Job posted in Watford

    10 square meters at the back of the house, kitchen extension

    Job posted in Crouch End

    Extension of kitchen pushing it out 2.5 metres onto the patio area with two set of 3-door bifold. Entrance only through ground floor door, with severa...

    Job posted in Slough

    I need a quotation for the complete Build of House Extension, which includes a new Kitchen, Shower Room and Family Sitting Room. This includes all ele...

    Job posted in Hendon

    Refurbishment of a shop in hendon for an estate agent

    Job posted in Watford

    Extension on the back of the property into the garden (kitchen/dining room, diner / utility and storage). Multiple pieces of work required: 1) Founda...

    Job posted in Watford

    10 square meters at the back of the house, kitchen extension

    Job posted in Crouch End

    Extension of kitchen pushing it out 2.5 metres onto the patio area with two set of 3-door bifold. Entrance only through ground floor door, with severa...

    Job posted in Chelmsford

    Build a extension at rear to include kitchen , bathroom and dining area

    Job posted in Watford

    The bathroom window has come away from the side wall I believe there is a gap. Not sure if I need rendering done on kitchen extension or whether it ju...

    Job posted in Ilford

    Previously a window was blocked when extension was built, I want to reopen opening to create a doorway

    Job posted in Luton

    Need a builder to remove hard ? Concrete kitchen floor to fix pipes underneath. Someone with plumbing skills. & Re-tile the floor.

    Job posted in Earl's Court

    plaster renovation pipe fiting

    Job posted in Chelmsford

    Build a extension at rear to include kitchen , bathroom and dining area

    Job posted in Watford

    The bathroom window has come away from the side wall I believe there is a gap. Not sure if I need rendering done on kitchen extension or whether it ju...

    Job posted in Ilford

    Previously a window was blocked when extension was built, I want to reopen opening to create a doorway

    Job posted in Luton

    Need a builder to remove hard ? Concrete kitchen floor to fix pipes underneath. Someone with plumbing skills. & Re-tile the floor.

    Job posted in Earl's Court

    plaster renovation pipe fiting

    Job posted in North Finchley

    Hello there, I am looking to divide up 5.5by4.1meter living room into 2 rooms to create 1 small bedroom and 1 small lounge; using a stud partition/non...

    Job posted in Wembley

    Single storey changing room, with small toilet. Need quote for labour and materials, as well as planning applications and compliance. Located in Wemb...

    Job posted in West Drayton

    Rear garden extension of 27 sq m. I need bathroom and living room

    Job posted in Bedford Park

    Meter extension to two existing rooms. One breeze block, one glass.

    Job posted in Harlow

    Extension 4 by 3 metres. How much it costs. Single storey.

    Job posted in North Finchley

    Hello there, I am looking to divide up 5.5by4.1meter living room into 2 rooms to create 1 small bedroom and 1 small lounge; using a stud partition/non...

    Job posted in Wembley

    Single storey changing room, with small toilet. Need quote for labour and materials, as well as planning applications and compliance. Located in Wemb...

    Job posted in West Drayton

    Rear garden extension of 27 sq m. I need bathroom and living room

    Job posted in Bedford Park

    Meter extension to two existing rooms. One breeze block, one glass.

    Job posted in Harlow

    Extension 4 by 3 metres. How much it costs. Single storey.

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