Extension Builders in Hatfield

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.4 (13 reviews)

Easily find verified Hatfield Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Hatfield.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Hatfield

2168 Results

Sort by:

HWA Building & Renovations
No reviews yet
Extension Builder in Hatfield
My Dad and I set up the company at the beginning of this year with ambition of building our own company, instead of working for others. We work in Hertfordshire, North London, Essex and Lower Bedfordshire. My dad has worked in construction for over 30 years, doing surveying for main contractors, as well as his own property development projects. I have now completed my degree apprenticeship in construction quantity surveying achieving a building science second class honors. I have also ran my own jobs for a main contractor in London and surrounding areas worth up to £4 million. Our lads on the tools all have CSCS cards, and have achieved the relevant carpentry qualifications. We specialize in bespoke garden rooms with our in house labor, and build extensions, refurbs, conversions, and new builds.
Get in touch
Woodhouses carpentry
Rating: 4.8 out of 5
Extension Builder in Hatfield
Carpenter with 20 years of experience, building wood houses, refurbishment, stairs , landscaping extensions, decking and play areas for kids. We undertake any project, doesn’t matter the size, at Woodhouses how I say: “big or small, we doit all”. Trust, respect and happy clients it’s my ideal project’s start to finish base for a productive and satisfying builder-costumer relationship, in order to achieve the desired outcome.
Get in touch
Latest review:
Extensions- 13 Dec 2021
GARDEN ROOM - instead of extending the conservatory, we decided to build a garden room instead. Ionut took the lead with the design and structure, and I’m over the moon with the results. A great experience from start to finish - Ionut was a pleasure to deal - friendly, professional and courteous. Would highly recommend.
Ground2Sky Limited
Rating: 5 out of 5
Extension Builder in Hatfield
Ground2Sky, Incorporated in 2016 has been set up with a mission to provide quality groundworks and general building works with the assurance of the best value for money. Our main aim is to exhibit high standards of quality in our work and successfully delivery projects with utmost customer satisfaction. We are passionate about our work and are looking to build good relationships with our clients.
Get in touch
Latest review:
Driveways (Paved & Loose)- 27 Apr 2023
Jeremy was great explained everything during works. excellent job And would highly recommend
Dziwota Construction Limited
Rating: 5 out of 5
Extension Builder in Hatfield
Hi my name is Kamil. We specialise in house extensions, full refurbishments, conversions, structural alterations and installation of kitchens and bathrooms. We also complete our projects in plastering and decoration to a universally high standard. Free quotations!
Get in touch
Latest review:
Extensions- 31 Jul 2015
Kamil and team have been an absolute joy and a pleasure to work with during the construction of our kitchen extension. They are incredibly hard working, every morning 7.30am starts and when needed working weekends as well. Every little extra we have asked for has been no problem at all, solutions have been found to everything. Not only have they built the extension but made sensible and welcome suggestions to how things could be done differently for a better effect -e.g the lighting, sockets, boiler set up. All work is completed to the highest standards and cleaned up afterwards. I would have no hesitation in recommending them to anyone, we have already employed them to overhaul the shower and heating in the rest of the house later in the year. 5 STARS
JM Plastering & Maintenance
Rating: 4.7 out of 5
Extension Builder in Hatfield
JM Plastering & Maintenance is a trusted plastering specialist based in Harlow, delivering exceptional workmanship for over 20 years. We don’t just “finish walls” we create flawless surfaces that elevate homes and commercial spaces. From full property refurbishments to detailed repair work, every project is completed with precision, care, and a commitment to excellence. Our reputation has been built on reliability, clean workmanship, and results that stand the test of time. We understand that inviting a tradesperson into your property requires trust which is why we prioritise clear communication, honest pricing, and meticulous attention to detail from start to finish. Whether it’s a small domestic repair or a large commercial project, we approach every job with the same standards: Professional. Reliable. Built to last.
Get in touch
Latest review:
Plastering- 30 May 2026
Would highly recommend. Delighted with the works carried out on our hallways and ceilings. Clean and tidy and very professional
Marble Piece
Rating: 5 out of 5
Extension Builder in Hatfield
Welcome everyone. My name is Peter and I am a builder as well as just tiler and stonemasons. Many clients coming back to me over few years. I run company called Marble Piece Ltd dealing with general building, extentions, loft conversions as wel as kitchen or bathrooms renovations. My service will never meet a complain or dissatisfaction. Clients are proud of their refurbishment visions done by my team. We do other bespoke project as Flooring, tiling etc. No job too small or too big for us!
Get in touch
Latest review:
Piotr's work is really good. I did four or five kitchens with him and I did recommend him to him to another builder friend of mine and they are happy with his work - no complaints. He arrived on time so there were no delays. I too am very pleased with his work and would of course use him again when I have some stone work to be done.
RNB Construction
No reviews yet
Extension Builder in Hatfield
RNB Construction are able to offer a complete design and build package for the residential homeowner. We can help clients develop their concepts from ideation, through architectural interface, planning and into a high quality build. We also offer main contracting roles where clients have plans and permissions in place and are just looking for a high quality reliable builder to carry out their project. We were established to bring a professional approach to clientele looking for reassurance
Get in touch
Lorimer Properties
No reviews yet
Extension Builder in Hatfield
We 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 Extensions, New Builds, Garage Conversions & Refurbishments. We take on all ranges of work; big jobs & small jobs, including Bricklaying, Patios, Driveways, Plastering, Dry lining, Tiling & Demolition.
Get in touch
Florin Pascu
Rating: 5 out of 5
Extension Builder in Hatfield
Hello, I'm florin and welcome to my profile! I've been working in construction and building for the past 15 years, and have made all my customers happy, completing work to a high standard very efficiently. I'm available to talk anytime if you are interested to take a hard working person like me. Don't hesitate to contact!
Get in touch
Latest review:
Plastering- 15 Dec 2025
Excellent. Definitely asking Florin to come back for the next two rooms.
Upgrade Interiors Ltd
Rating: 5 out of 5
Extension Builder in Hatfield
We’ve focused in the last 26 years, on improving our skills and how can we be better professionals. It has been a long journey, a time in which we have developed every day as professionals, to put everything in value, for the clients we have today. We believe that, when you do everything with great passion, the results will be fantastic and you can be proud of the final result.
Get in touch
Latest review:
Carpentry- 17 Oct 2025
Nico did a fantastic job. The new wardrobe doors look amazing and fit perfectly after adjusting to fit the older door frames which had settled and moved slightly out of alignment over the years. Better than the original ones. The bedroom doors were replaced and fitted to open to the correct side of the rooms. The broken stair was expertly cut and fitted and matched perfectly to the rest of the stariway. Very solid and completely squeek free. Built to last a very long time. Nico is very reliable, dependable and highly skilled. I highly recommend him for any carpentry work needed.
Bujar Vata
Rating: 5 out of 5
Extension Builder in Hatfield
I am in the building business for 15 years I have worked all around London specially in the City I have registered myself on Mybuilders.com so I can get job around my area.
Get in touch
Latest review:
Tiling- 7 Jun 2026
Amazing job and a brilliant team of tradespersons. An excellent job of the herringbone tile flooring with underfloor electric heating for the whole of my downstairs. The wall panels also complemented the flooring and were installed perfectly. Well done to Bujar and his team!
R&S construction services
Rating: 5 out of 5
Extension Builder in Hatfield
I have been for 20 years now in building works i like what i do and i like make other people to have they dream house to make them happy
Get in touch
Latest review:
Great service received. Called Martin out that day and he fixed my front door straight away. Great price and great service received will be using him again in the future.
The Construction Collective
No reviews yet
Extension Builder in Hatfield
The Construction Collective ltd provides a seamless, end-to-end building service for homeowners across Barnet and North London. We specialise in fully managed construction, taking your project from the initial design phase all the way through to final completion. Our team is dedicated to exceptional craftsmanship and precision in every build, whether it's a residential home or a commercial space. With our Fixed Pricing guarantee, you can start your project with confidence, knowing there are no hidden surprises or budget creeps. We handle the management so you can enjoy the transformation of your spacehttps: theconstructioncollective.co.
Get in touch
TPS Groundwork & constrution
Rating: 5 out of 5
Extension Builder in Hatfield
extensions, driveways,paving,groundwork
Get in touch
Latest review:
Bricklaying- 6 Nov 2020
Tony gave me a competitive quote, not the cheapest but everything about him was professional and gave me confidence. His team arrived on time the day of the build and were helpful and pleasant. They worked all day and cleaned up and covered their work until they arrived on time the next morning. They worked hard all day. After the wall and piers were build all the brickwork and joints were left clean and crisp. I am very happy with the wall. I have renovated many properties over the years and the standard of this job was excellent. I highly recommend them.
Martini Building & Roofing Ltd
Rating: 5 out of 5
Extension Builder in Hatfield
I do Building and construction since 2010 Quality is our priority
Get in touch
Latest review:
Tiling- 29 Jun 2022
We needed an experienced and skilled tiler, to fit 800 x 800 glass fronted tiles to a TV wall. The tiles were manufactured to size, and formed one large pattern. Arben did a fantastic job for us, he finished the job in one day, and it was completed to a excellent standard. I highly recommend him!
V.barclay&sons
No reviews yet
Extension Builder in Hatfield
I trade under v.barclay&sons builders i have been self nemployed since 1978 ,we take on all aspects of building works from complete refebes to fitting kitchens,for the last 15 years have been building extensions in St Albans and enfield
Get in touch

3.4

Top rated Extension Builders

Our Extension Builders in Hatfield, are rated 3.4 out of 5 based on 13 reviews from customers like you.

Quality screening

Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

What types of services are offered by local extension builders in Hatfield?

Building an extension is a major milestone for any home. It’s not just about adding extra space, it’s a big step that can transform how you live day to day, opening up new possibilities for comfort, lifestyle, and family needs.

This is why it’s so important to find the right extension builders in Hatfield for you. They can help with a variety of tasks and projects, including:

Extending your home with an extra room
Two+ storey extensions
Adding partition walls to create more rooms
Building annexes or external structures

To find the right extension builder near you, simply post your job on MyBuilder. Explain the type of help you’re looking for, and then home extension builders in Hatfield who are available and interested can respond to your post.

Browse profiles, read customer reviews and get quotes from your chosen Hatfield extension builders, all before you decide who to hire.

What are the hourly rates of extension builders in Hatfield?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in Hatfield will charge between £16 and £42 per hour.

Single-storey rear extensions cost between £20,000 and £60,000 depending on size and finish.
The cost of double-storey extensions, which add more space and value, can range from £100,000 to over £170,000.
Larger wrap-around extensions that combine multiple extension types can range from £40,000 to over £120,000.

The cost of an extension will vary depending on your property. For instance, extending in certain areas may require structural adjustments to ensure stability, which can increase your material and labour costs.

To get an accurate price for your home extension, request detailed quotes from several Hatfield extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Hatfield home extension project is likely to cost.

Find extension builders in Hatfield with MyBuilder

Hiring the right extension builder in Hatfield with MyBuilder couldn’t be easier. Just follow these simple steps:

Step 1: Post your extension project on MyBuilder

Whether you’re planning a single-storey extension, a loft conversion, or adding a new room, post your job on MyBuilder to find local Hatfield extension builders. Once your job is live, we’ll share it with home extension builders in Hatfield who can express their interest.

Step 2: Compare different extension builders in Hatfield

When you start receiving interest, review profiles of local Hatfield extension builders, check their previous work, and read real customer reviews. Ask about timelines, materials, and request detailed quotes.

Step 3: Hire Hatfield extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Hatfield, compare their experience, guarantees, and costs before choosing who to hire.

You’ll also have confidence knowing that every tradesperson on MyBuilder is verified through several checks, including:

ID verification: When a tradesperson joins MyBuilder, we ask for a valid ID, such as a passport, ID card, or eIDAS certificate.
Company verification: For tradespeople operating under a company, we make sure every tradesperson has a registered business.

Did you know? Our continuous monitoring and complaints process ensures that tradespeople who don’t meet our standards are promptly removed from MyBuilder’s platform.

Hatfield extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Hatfield extension builder before hiring?

Before hiring an extension builder in Hatfield or extension building company in Hatfield, ask a few key questions to make sure you’re choosing the right professional for your home extension project.

What qualifications and experience do you have as an extension builder in Hatfield?

An extension builder in Hatfield should have a strong track record with similar projects and relevant building qualifications or trade memberships, such as the Federation of Master Builders (FMB) or TrustMark.

Will my home extension meet all building regulations and planning requirements?

Your Hatfield extension builder should ensure the project complies with Building Regulations and, where necessary, handle or assist with planning permissions. Ask how they manage building control inspections and what documentation you’ll receive once the project is complete.

What experience do you have with similar extensions in Hatfield?

Ask to see examples of their previous work, or view examples of their work on MyBuilder. Ideally projects similar to yours in scale and design. This helps you assess the Hatfield extension builder’s ability to deliver a result that meets your expectations.

How long will the extension take to complete?

Extension project timelines can vary depending on size, complexity, and weather. A typical single-storey extension might take around 8 - 12 weeks. Request a detailed schedule so you know what to expect and when key milestones will be reached.

Do you offer a guarantee for your work? Most Hatfield extension builders offer a guarantee or warranty on their work, often between 1 and 10 years depending on the project and materials used. This gives you assurance that any issues will be resolved after completion.

If you still have questions about the professional you are looking to hire, we have a full detailed guide on hiring the right builder here.

FAQ: Common questions about home extensions in Hatfield

Can an extension builder in Hatfield help with planning permission?

Yes, many extension builders in Hatfield can guide you through the planning process. They can help prepare drawings, advise on local requirements, and liaise with your local council to ensure your project meets all necessary regulations.

Can an extension builder in Hatfield handle everything from design to construction?

Many Hatfield extension builders offer full design-and-build services, managing both the architectural planning and construction stages. Ask your builder whether they can provide a complete package or if you’ll need to hire an architect or designer separately.

Will an extension builder in Hatfield help with materials and finishes?

Yes, most extension builders in Hatfield can source materials and offer advice on finishes that suit your design and budget. You can also choose to supply certain materials yourself, just make sure this is agreed upon before work starts.