How it works
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Post a job
Tell us about your job, and we'll alert suitable extension builders in Hatfield. It’s simple and free.
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Tradespeople respond
Once your job is posted, you'll get responses from interested extension builders through the website.
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Review and choose
Browse profiles, work history, and feedback, then choose who you wish to share your details with.
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Philip J Pulzer
5 reviews • 100% positive ratingExtension Builder working in HatfieldTrade Member since 2014As a design and build contractor, we will produce drawing for both planning approval and building regulation. We will then provide a detailed estimate of building costs. If we do win the building co tract then all architectural design cost will be free of charge. read more
Latest Architecture feedback review:
Kitchen extension and internal home improvements
Phil is amazing. Has vast experience. Very honest. He is a one stop shop for extensions and home improvements. Glad we found him on mybuilder.
By raj_379 on 9th Jun, 2020
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Handyman plumber
No reviews yetExtension Builder working in HatfieldTrade Member since 2019Over 25 years Experience builder on general building, extension, lofts all around house. read more
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SAS Carpentry
10 reviews • 100% positive ratingExtension Builder working in HatfieldTrade Member since 2009Complete building service Extension, Conversions and full refurbisment service supplied. Covering all trade services. Groundworks Bricklaying Gas registerd plumbing service Niceic Electrical service Carpentry 1st,2nd fix works Plastering Kitchen,bathroom and read more
Latest Kitchen Fitting feedback review:
Replace Kitchen worktop and sink
Very happy Scott fitted my new kitchen worktop to an professional standard and he farther fitted the new sink to the same standard, I will be using he's services again and would highly recommend Scott.
By anon-200526004503173470 on 5th Apr, 2012
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A1Z Construction Limited
No reviews yetExtension Builder working in HatfieldTrade Member since 2021Fast growing construction company We are happy to provide wide range of construction services including all types of extensions, new built, home renovation, ground works read more
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DMV Builders
No reviews yetExtension Builder working in HatfieldTrade Member since 2015Advanced craft NVQ LEVEL 3 Brickwork Over 20yrs experience read more
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Smart Constructors
3 reviews • 100% positive ratingExtension Builder working in HatfieldTrade Member since 2019We represent a new construction company with many fields of activity, such as meintenance, cleaning, extensions a.s.o. We are more than happy to tackle any chalange. read more
Latest Handyman feedback review:
Assemble storage unit
Very happy, good (fair not cheap) price. Adrian contacted me, arranged to come quite quickly, efficient and completed the job in good time... left site nice and tidy. Would recommend 😀 Thanks Adrian
By ella6543 on 9th Aug, 2019
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A Mills Building Solutions
3 reviews • 100% positive ratingExtension Builder working in HatfieldTrade Member since 2014Here at AMBS ECO solutions, we offer a great service to clients, with skilled qualified tradesmen around me and pride myself on my customer relationship and quality of work All with an eye on carbon neutral materials and eco friendly building methods. We supply and fit ASHP, read more
Latest Bricklaying client reference:
I can't recommend Andrew highly enough. He recently built two new kilns and furnaces in my Smokery from drawings I provided - the work is exceptional, communication was excellent and the quote was accurate. He was recommended to me by a...
Reference taken by MyBuilder on 1st Jul, 2014
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B Williams groundwork & brickwork
No reviews yetExtension Builder working in HatfieldTrade Member since 2021All groundwork/ foundations and brickwork/ blockwork. 20+ years experience read more
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Mars Building
3 reviews • 100% positive ratingExtension Builder working in HatfieldTrade Member since 2014Mars Building is a local family run business with four generations of experience in the building and carpentry trade, all our workers are fully qualified and all our work is fully insured so if we're in your house you know you're in safe hands read more
Latest Conversions - General client reference:
All the work carried out was professional clean and tidy Ricky was on time and on budget I found Ricky to be helpful, patient and considerate. He listened carefully and totally understood what I wanted from the conversion. He is a talented...
Reference taken by MyBuilder on 7th Apr, 2014
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North London Projects
No reviews yetExtension Builder working in HatfieldTrade Member since 2019I am a qualified time served carpenter. I have 18 years experience in the industry working alongside skilled and highly competent tradesmen. Our main focus work wise is in loft conversions, extensions and renovations. We employ highly skilled and qualified tradesmen. We read more
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CB Building & Carpentry
3 reviews • 100% positive ratingExtension Builder working in HatfieldTrade Member since 2020My name is Clirim and I own CB Building and Carpentry Services. I provide professional building and carpentry services at reasonable prices. We undertake the following service. - Carpentry ( First & Second Fix) - General Building - Extensions - Loft read more
Latest Carpentry feedback review:
New door
The guy was a very good worker kept the place clean though out the jobs done the job quick and good 100% would recommend him and his team
By ardian57688 on 7th Dec, 2021
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Poles Apart Construction
No reviews yetExtension Builder working in HatfieldTrade Member since 2021Hi all My names is Gracjan Im from Poland . I have 17 years experience in carpentry Joinery 1 and 2 fix .This is my passion so I can do anything made of wood. Thank you read more
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Luke Smith Plastering
No reviews yetExtension Builder working in HatfieldTrade Member since 2015I run my own building company.i run a tight ship.I deal with construction and design and details.we take on all projects.we work to high spec and aim to keep growing our construction firm. read more
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D Bird carpentry and building LTD
2 reviews • 100% positive ratingExtension Builder working in HatfieldTrade Member since 2020Hi were Dbird Carpentry & Building we are a family run company by myself Daniel and my brother Ellis. We take pride and love what we do! We will help you every step of the way through your project no matter the size. read more
Latest Conversions - General client reference:
A Exceptional Building company - D.Bird: In todays busy business world it is very rare to find such a company and owner that cares about all aspects of the project. Dan Bird came and quoted after taking the time to discuss all our needs,...
Reference taken by MyBuilder on 31st May, 2022
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CL building & carpentry services
No reviews yetExtension Builder working in HatfieldTrade Member since 2020We are a local building firm based in and around Hertfordshire. we have extensive knowledge of building from start to finish. We take on all aspects of residential building works from extensions, conversions, refurbishments and new builds. read more
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Byott and Attfield construction
No reviews yetExtension Builder working in HatfieldTrade Member since 2020We are a fully qualified experienced team of all trades, carpentry, bricklaying. We offer the full building package from hanging doors to new builds. read more
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Thomas and Thomas contractors ltd
1 review • 100% positive ratingExtension Builder working in HatfieldTrade Member since 2021We carry out parts or full project for clients doing all aspects of building being experts in grounds works e.g engineer foundation, concrete structures, Drainaged etc. We also do quality kitchen and bathroom. Generally we do new builds, extensions with full house renovation read more
Latest Groundwork & Foundations client reference:
Construction of various residential apartments and houses . Good and reliable.
Reference taken by MyBuilder on 30th Jan, 2023
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St. Albans Brickwork Ltd.
17 reviews • 100% positive ratingExtension Builder working in HatfieldTrade Member since 2017St Albans Brickwork specialise in all elements of residential and commercial brickwork construction projects. Our skills cover a wide-range of projects, home extensions and renovations, driveways & patios, garden walls, repointing, garage conversions and large building read more
Latest Bricklaying feedback review:
New build project
Joe and his team did an excellent job Would use again for any future brickwork projects And highly recommend St Albans brickwork .
By dan_coles-gubb on 17th Oct, 2017
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Noel Clancy
No reviews yetExtension Builder working in HatfieldTrade Member since 2020Noel Clancy building services was established in 2011 but I have been in the trade for 25+ years. Taking on projects from kitchen fitting, bathrooms/wetrooms to extensions and loft conversions. Covering all trades including brick laying, plastering, carpentry, tiling, read more
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Lorimer Properties
No reviews yetExtension Builder working in HatfieldTrade Member since 2018We are a Construction & Property Development business. I have worked in Construction for 8 years. My main trade is Bricklaying which I completed a 3 year Apprenticeship with but I have learnt many trades over the years and have experience of running my own jobs that include read more
What can extension builders do?
MyBuilder is the simplest way to find a reviewed and vetted extension in your local area. We can connect you with local extension builders near you, so you can choose the ideal tradesperson for your project with confidence.
Whether your plans are big or small, we can help you find a skilled extension builder to support you with your job. Your contact details are only shared with tradespeople you want to speak to, so you can check out their credentials, read honest customer reviews and get free quotes to compare.
There are lots of jobs that extension builders can help with, including:
- Extending your home with an extra room
- Two+ storey extensions
- Adding partition walls to create more rooms
- Building annexes or external structures
Top Extension Builder Reviews
Extension Builders working near Hatfield in Hertfordshire have an average review score of 99% positive based on 3,241 homeowner reviews.
Trusted by experts

Don’t just take our word for it, homeowners love MyBuilder too. We’re proud to be rated by Mumsnet.
Towns near Hatfield
- Welwyn Garden City
- Potters Bar
- Welwyn
- Hertford
- St Albans
- Radlett
- Barnet
- Waltham Cross
- Harpenden
- Borehamwood
- Knebworth
- Broxbourne
- Oakwood
- Whetstone
- Totteridge
- Hoddesdon
- Enfield
- Southgate
- Winchmore Hill
- Grange Park
- Abbots Langley
- Woodside Park
- Mill Hill
- North Finchley
- Bounds Green
- Bushey
- Friern Barnet
- Edgware
- New Southgate
- Watford
Hatfield areas
- Welham Green, North Mymms
- North Mymms
- Marshmoor
- Oxlease
- South Hatfield
- Essendon
- Bishops Hatfield
- Mill Green
- The Ryde
- Mount Pleasant
- Birchwood Industrial Estate
- Batterdale
- Bull Stag Green
- Old Hatfield
- Birchwood
- New Town
- Roe Green
- Bell Bar
- Brookmans Park
- Symonds Hyde
Other trades in Hatfield
- Architectural Designers
- Bathroom Fitters
- Bricklayers
- Carpenters & Joiners
- Carpet & Lino Fitters
- Chimney & Fireplace Specialists
- Conservatory Installers
- Conversion Specialists
- Damp Proofing Specialists
- Decking Specialists
- Demolition Specialists
- Driveway Pavers
- Electricians
- Extension Builders
- Fascias & Soffits Specialists
- Fencers
- Flooring Fitters
- Gardeners
- Gas Engineers
- Groundworkers
- Guttering Installers
- Handymen
- Heating Engineers
- Insulation Installers
- Kitchen Fitters
- Landscape Gardeners
- Locksmiths
- Loft Conversion Specialists
- New Home Builders
- Painters & Decorators
- Plasterers
- Plumbers
- Repointing Specialists
- Restoration & Refurb Specialists
- Roofers
- Security System Installers
- Stonemasons
- Tarmac Driveway Specialists
- Tilers
- Tree Surgeons
- Waste Clearance Specialists
- Window & Door Fitters
- All Builders
- All Tradespeople
Ask an Extension Builder
Our vetted professionals answer your home improvement questions
- Hi, what is the basic prize of an extension per sq m ? what does it include ? how do you know if the tradesman chosen doesn't over charge you? and how to you pay the job before or end of the work .
- How near can my neighbour build an extention to my boundry, the size he is considering does not require plannning concent.in adition this extention is going limit view / sunlight can i object?
- Damage to neighbour's property
- Tying in to existing brickwork/ continuous cavity in new + old walls