Extension Builders in Castleford, Yorkshire and the Humber

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.4 (7 reviews)

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Some of our top rated extension builders in Castleford, Yorkshire and the Humber

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Carpentry and Joinery Conservation
Rating: 5 out of 5
Extension Builder in Castleford, Yorkshire and the Humber
Cjconservation dot c o . U k, We have many combined years experience working with historic buildings for the likes of English Heritage and National Trust, making bespoke windows and doors allong with repairing sash windows, oak frames, roof structures, gates and also all aspects of domestic, commercial and heritage joinery including building maintenance.
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Latest review:
Windows & Doors (Wooden)- 20 Jun 2023
Had a sash window which had a rotten batten. Ben communicated well, Fixed the problem to a high standard and left it primed for painting. Would recommend
Rcb group
Rating: 5 out of 5
Extension Builder in Castleford, Yorkshire and the Humber
Rcb Group Ltd are a Civils & Groundworks specialist based in Leeds. We're New to My Builder, However, we've been operating since 2009 gaining a positive reputation throughout Yorkshire. Please feel free to look us up. We're specialist in Footings, Surafacing, driveways, street works, Dropped crossings, concrete/reinforced concrete work, land clearance. We run and own all our own plant and machinery saving costs and time. No job too large or small
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Latest review:
Groundwork & Foundations- 9 May 2026
I cannot recommend Richard at RCB highly enough! He recently completed the drainage and manhole for me and the experience was seamless from start to finish. He arrived exactly when he said he would, kept the job and the area incredibly tidy and the quality of the job and finish is outstanding. Its rare to find someone who takes this much pride in their trade. Professional, polite and fair pricing. I'll definitely will be using them again
High Green Building Solutions Ltd
Rating: 4.8 out of 5
Extension Builder in Castleford, Yorkshire and the Humber
High Green Building solutions treat your home like our own. We have years of experience in building work ranging from extensions, new builds and complete renovations including all the smaller jobs in between.
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Latest review:
Extensions- 16 Dec 2024
High Green Building are absolutely fantastic! Marc turned up, on time, worked hard everyday. Did an outstanding job and built us a dining room, utility room and toilet. We are so pleased with not only the end result but the quality of work and care taken during the build. Cannot fault Marc (and Owen) I would highly recommend Marc for any build. Whether you need a wall building or a big build. And to top it off, he is not only professional but a nice guy as well. Price is also very competitive. On my builder you sometimes have to take a risk with who you employ. High Green Building there is no risk.
Steven Groves
Rating: 5 out of 5
Extension Builder in Castleford, Yorkshire and the Humber
I have a deep passion for creating quality that my customers will enjoy from beautiful smooth plaster to a bespoke kitchen or tranquil landscape gardan we are the real deal I let my craftmenship speek for its self .
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Latest review:
Steven and his partner undertook a number of jobs around our house. Laying a new floor skimming the hall and stair way, putting up a stud wall and fitting double doors. All the work was carried out to high standard. Steven also put up with us chopping and changing the schedule. He also effectively problem solved a couple of issues that arose and offered cost effective solutions. I have no issue with wholeheartedly recommending Steven.
Cramptons Builders
Rating: 5 out of 5
Extension Builder in Castleford, Yorkshire and the Humber
need a clean and tidy reliable builder with a first class skill level and good work ethics call me for a no nonsense approach and free advice and hopefully a quote
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Latest review:
Extensions- 2 Apr 2020
Did a excellent job I would highly recommend
Aln Property Service
Rating: 4.9 out of 5
Extension Builder in Castleford, Yorkshire and the Humber
Aln building are a family run company . Based in Ackworth, West Yorkshire, With over 30 years experience in the building trade. We are certified and widely recommended builders/tradesmen that are pleased to be able to offer you an end to end solution. From planning and design through to landscaping and precision finishing you can put your trust in us to deliver. You can trust ALN Building Services to offer a professional, quality finish to every project worked on.
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Latest review:
Extensions- 14 May 2013
A star***** This builder would be recommend as he and his team did a fantastic job , Finished the job earlier than scheduled. it has nearly been a year and the job is still up to its standard well done. I also hired Alan to do a second job in the kitchen area which he done a wonderful job i would highly recommend.
JS Construction
Rating: 5 out of 5
Extension Builder in Castleford, Yorkshire and the Humber
Experienced in all aspects of building, looking for brick work/block work/ stone work, exstensions ,garden walls,concrete, patios, decorative brick work etc. Have a look at my face book page (J.S construction) for reviews and more info on my trusted business.
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Latest review:
Landscaping- 9 Nov 2023
Job was cancelled due to unexpected circumstances. The guys where great, easy to talk to, knowledgeable and executed outstanding customer service.
A Maltby building services
Rating: 5 out of 5
Extension Builder in Castleford, Yorkshire and the Humber
I have been within the building industry for 40+ years and have many skills and experience. I am a reliable truthworthy individual who can guarantee various trades whilst onsite to suit projects accordingly. I have a portfolio of works undertaken that I have carried out over the years
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Latest review:
Bricklaying- 4 Dec 2018
Andy is amazing, very friendly and does exactly what he says he will do. I would definitely recommend Andy to anyone looking for a builder
BK Yorkshire Ltd
Rating: 1 out of 5
Extension Builder in Castleford, Yorkshire and the Humber
Brook Construction is a trusted building and renovation company delivering high-quality workmanship across every stage of residential construction. With years of hands-on experience, we specialise in home extensions, garage conversions, and full property renovations, helping homeowners unlock the full potential of their properties. From structural alterations and layout reconfigurations to complete modern transformations, Brook Construction manages projects from concept through to completion. We pride ourselves on clear communication, reliable project management, and attention to detail, ensuring every build is delivered on time and to the highest standard. Our in-house expertise extends beyond general building. We also provide dedicated bathroom and kitchen specialists, allowing us to deliver seamless, fully coordinated installations without the need for multiple contractors. Whether it’s a contemporary kitchen, a luxury bathroom, or a full internal refurbishment, our skilled trades work together to achieve a flawless finish. Quality materials, skilled craftsmanship, and customer satisfaction sit at the core of everything we do. No matter the size or complexity of the project, Brook Construction is committed to delivering dura
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Latest review:
Conversions - General- 2 Mar 2026
They came and stay outside of the property and go back They not bothering
Peter Jones and Son
Rating: 5 out of 5
Extension Builder in Castleford, Yorkshire and the Humber
Me and my dad and mum (up until mum recently passed away) have been running a small successful building company for the last 30 plus years. We're based in Leeds, but have taken work all over the Yorkshire regions over the years. Work has almost always come by recommendation.
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Latest review:
Conversions - General- 29 Aug 2024
Peter, Dean and Chris have been fantastic and would highly recommend them. They have built a rear extension (replacing my old plastic conservatory), replaced a bay window and also made a downstairs laundry and wc area. Peter Jones and Son are hard working, diligent, flexible and honest. Their workmanship is great and the communication and timing of the build were also spot on. I can't wait to hire them again for my next project. Thank you guys!
Axlbuilders
No reviews yet
Extension Builder in Castleford, Yorkshire and the Humber
Experienced builder specialist is house extensions walls , refurb work , all quality brickwork
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Apex Property Developments
Rating: 4.9 out of 5
Extension Builder in Castleford, Yorkshire and the Humber
Apex property developments specialise in carpentry & joinery, with over 11 years experience and excellent feedback, there’s not many things we’ve not took our hands to before. From bespoke fittings to the simplest of jobs, we make sure we cater to your requirements and offer professional solutions if we spot something you may not have. Feel free to check out our instagram and Facebook page for more photos of jobs we’ve accomplished. Hope to hear from you, thanks. Apex property developments
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Latest review:
Carpentry- 26 Dec 2024
Great work - thank you!
Taylor ragan
Rating: 5 out of 5
Extension Builder in Castleford, Yorkshire and the Humber
Hi my name is Taylor Ragan a bricklayer wanting to be off good service to you
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Latest review:
Bricklaying- 12 Aug 2025
Great service. Taylor completed the work when promised. Will use again if required
Gss bricklaying
Rating: 5 out of 5
Extension Builder in Castleford, Yorkshire and the Humber
Fully qualified bricklayer with Over 10 years experience in the building trade. All aspects of building work carried out from •Flagging •Garden walls •Small exstention to big exstention. •Repointing work. •Create Openings. •Window and door supply and install. •Facia, soffits , guttering and dry verge.
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Latest review:
Landscaping- 7 Sep 2026
Lovely young man. Did a great job at reasonable cost. I thoroughly recommend this company.
Carriss Construction
Rating: 5 out of 5
Extension Builder in Castleford, Yorkshire and the Humber
We are a family run business that has been established for over 30 years. Our scope of works undertaken varies from new build developments and house extensions through to conservatories and all types of structural redevelopment including new kitchens and bathrooms. All work is guaranteed.
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Latest review:
Paul has worked for me for approximately 2 years, his workmanship is always of the highest standard, he always works in the most professional manner when dealing with suppliers, architect and building inspectors. His was very reliable always turning up on pre arranged days and times. I would have no hesitation in recommending Paul for any building project, no matter how large or small.
CSN building contractors
Rating: 5 out of 5
Extension Builder in Castleford, Yorkshire and the Humber
Hi I'm Chris, CSN is based in the Temple Newsam area of Leeds , we are extension specialist with a 5 star rating, all our work is available to view and also speak to our happy customers, if you want the job doing properly and the price to be competitive then please give us a chance , we will not let you down :)
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Latest review:
Extensions- 3 Aug 2026
I would highly recommend CSN Builders to anyone looking for reliable, high-quality work. I recently hired them for a double-storey extension, and Chris and his team exceeded all expectations. They were consistently punctual, arriving early every morning, and demonstrated impressive expertise throughout the project. Thanks to Chris's guidance, we completely restructured the house—moving staircases, removing chimneys to maximize space, and carrying out a full rewire and plastering. Crucially, all work was completed strictly within the agreed timeframe, enabling our other contractors to stay on schedule. Fantastic service from start to finish!

4.4

Top rated Extension Builders

Our Extension Builders in Castleford, Yorkshire and the Humber, are rated 4.4 out of 5 based on 7 reviews from customers like you.

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What types of services are offered by local extension builders in Castleford, Yorkshire and the Humber?

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 Castleford, Yorkshire and the Humber 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 Castleford, Yorkshire and the Humber who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Castleford, Yorkshire and the Humber?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in Castleford, Yorkshire and the Humber 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 Castleford, Yorkshire and the Humber extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Castleford, Yorkshire and the Humber home extension project is likely to cost.

Find extension builders in Castleford, Yorkshire and the Humber with MyBuilder

Hiring the right extension builder in Castleford, Yorkshire and the Humber 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 Castleford, Yorkshire and the Humber extension builders. Once your job is live, we’ll share it with home extension builders in Castleford, Yorkshire and the Humber who can express their interest.

Step 2: Compare different extension builders in Castleford, Yorkshire and the Humber

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

Step 3: Hire Castleford, Yorkshire and the Humber extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Castleford, Yorkshire and the Humber, 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.

Castleford, Yorkshire and the Humber extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Castleford, Yorkshire and the Humber extension builder before hiring?

Before hiring an extension builder in Castleford, Yorkshire and the Humber or extension building company in Castleford, Yorkshire and the Humber, 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 Castleford, Yorkshire and the Humber?

An extension builder in Castleford, Yorkshire and the Humber 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 Castleford, Yorkshire and the Humber 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 Castleford, Yorkshire and the Humber?

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 Castleford, Yorkshire and the Humber 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 Castleford, Yorkshire and the Humber 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 Castleford, Yorkshire and the Humber

Can an extension builder in Castleford, Yorkshire and the Humber help with planning permission?

Yes, many extension builders in Castleford, Yorkshire and the Humber 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 Castleford, Yorkshire and the Humber handle everything from design to construction?

Many Castleford, Yorkshire and the Humber 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 Castleford, Yorkshire and the Humber help with materials and finishes?

Yes, most extension builders in Castleford, Yorkshire and the Humber 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.