Extension Builders in Castleford

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

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

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 Castleford

477 Results

Sort by:

ab construction
Rating: 5 out of 5
Extension Builder in Castleford
Looking for a licensed and experienced professional to tackle a project? Get guaranteed quality results with Alb construction. We offer professional and reliable services for a wide variety of needs, working with the dedication and craftsmanship that has earned us a reputation for excellence
Get in touch
Latest review:
Extensions- 24 Aug 2018
Great team of builders. Good, correct and skillfull. I am very happy. Adrian
Simmons Home Developments LTD
No reviews yet
Extension Builder in Castleford
Simmons home developments LTD are dedicated to providing the highest quality workmanship when it comes to your property. We will help you create a plan that’s tailored to your specific needs and budget. Job site safety and efficiency is one of our main priorities. Whether you’re looking for residential or commercial property solutions, we can help. We also Offer affordable emergency repair should you need it.
Get in touch
Snowden building services
Rating: 5 out of 5
Extension Builder in Castleford
Mr name is rob I've been in the construction industry for 20 years doing everything from garden walls extension new builds patios all aspects I have a good reliable professional team and fully work for customer satisfaction
Get in touch
Latest review:
Extensions- 22 Mar 2026
Rob and his team did an excellent job of my porch, the high standard of building work can be seen in his pictures and has attracted lots of interest . Even in wet, miserable weather, they turned up on time and worked a full day. Work was completed on time and to an exceptionally high standard. I would definitely recommend him and will use him for all future jobs. If you feel anxious about hiring a builder you do not know or inviting people into your home, Rob and his team are completely trustworthy. Rob is as honest as the day is long, professional and extremely hard working. He involves you at every step of the process and all choices are yours. There are no 'hidden' extras when he completes the work and he will not take advantage but will work with you to find the best option for your budget. He is more than willing to help with those small jobs that you think you should be able to do yourself, ie putting up baskets! without a thought! He is what a true workman should be!
RDC Building & Maintenance
New on MyBuilder
Extension Builder in Castleford
RDC Building Services offer every aspect of building work to a high quality standard, this ranges from anything such as a garden wall to big extensions. We also offer not only the brickwork, we offer everything that comes with it internally such as joinery, plastering, flooring etc. We cover all areas within Yorkshire but we are based in Pontefract. Please don't hesitate to contact me for a free no obligation quote.
Get in touch
Lofthouse & Jubb
No reviews yet
Extension Builder in Castleford
Hi we’ve been in the trade for 30 yrs + and are experienced in new build houses extensions barn conversions foundations flagging/paving and boundary walls
Get in touch
houghton build
Rating: 5 out of 5
Extension Builder in Castleford
Houghton Build are a small company specialising in bricklaying and general building, i have a excellent reputation on various tradesmen websites, and ALL my previous clients would be willing to vouch for me. i provide a free quote with a breakdown which explains where your money is spent, there is no hard sell with this and a structured payment plan to put clients mind at ease.
Get in touch
Latest review:
Extensions- 16 Mar 2013
A pleasure to do business with, honest, reliable, good price and did a very nice job, would highly recommend this builder.
Bara home solutions LTD
Rating: 5 out of 5
Extension Builder in Castleford
Whatever your building needs, we’d be delighted to offer you a free, no obligation quote for the work you want doing. We are fully experienced in all aspects of general building work such as house renovation bathrooms kitchens electrical plumbing joinery plastering etc . and we’re happy to offer advice, should it be sought, so if you have any questions, please don’t hesitate to pick up the phone and give us a call. With over 20 years of experience you are in expert hands.
Get in touch
Latest review:
Restoration & Refurbishment- 31 May 2025
We recently completed a major renovation and building project, and we couldn’t be happier with the results. Qemal Bara is an outstanding professional—precise, friendly, and incredibly helpful throughout the entire process, from design and shopping to final touches. His team at Bara Home Solutions is among the best in the UK—skilled, reliable, and efficient. I’m extremely satisfied with their work and highly recommend them. Thank you, Qemal!
Garforth building renovation Ltd
No reviews yet
Extension Builder in Castleford
Welcome, We are a family run business With a wealth of experience and qualified skill set meaning you can hand your ideas over to us and we can bring them to life. We are a dedicated and passionate team who strive for perfection. Please take a look at our fantastic reviews for work carried out for our customers. We specialise in : New builds Extensions Loft conversions Disability adaptations Structural adaptations We can bring your ideas to life
Get in touch
S. A. BRISTOW. JOINERY AND BUILDING CONTRACTOR.
No reviews yet
Extension Builder in Castleford
.
Get in touch
LEEDS GARAGE CONVERSIONS LIMITED
Rating: 5 out of 5
Extension Builder in Castleford
We are a team of fully qualified tradesmen who specialise in converting garages from planning to competition we organise everything all our conversions come with building regulations and a standard 10 year guarantee. We can create whatever type of room you like from a snug to a playroom or a bedroom with a en-suite. We also build a home extensions to a high quality with over 25 years experience in all building works
Get in touch
Latest review:
Conversions - General- 20 Dec 2019
I could not be more pleased with the work done by Dean and his team. Dean came out to quote on the job and explained exactly what he would do and the expected timescale. He quoted a reasonable price. Dean and his team arrived on time everyday and worked to a very high standard which was reflected in the finish. I would definitely recommend this company to anybody wanting a garage conversion. Highly professional, polite and a pleasure to deal with. Thanks for a great job!
Alwoodley building and developwments
Rating: 5 out of 5
Extension Builder in Castleford
we specialise in building and construction and we have a team of friendly, experienced tradesmen who are competant in each area of the building trade. working with joiners , plumbers, plasterers, electricians , bricklayers , tilers and painters we can confidently satisfy most of our customers requirements. we specialise in new builds, extensions, general refurbishments, loft conversions working in and around Leeds please contact us for a free quote
Get in touch
Latest review:
We had a back extension built, and a refurbishment to the rest of the property. The work was completed in a very professional manner and all to the agreed timescale, the workers were friendly and polite and always keep the job clean and tidy, which made it easy to live in the property during the works taking place. We were very happy with the end job and would highly recommend using this service.
RSB Contracts Ltd
Rating: 5 out of 5
Extension Builder in Castleford
RSB Contracts Ltd is a small construction company specialising in brickwork, stonework, building repairs and groundworks wether it's extensions new builds or renovations we are fully qualified, experienced and insured. We are health and safety accredited.
Get in touch
Latest review:
Bricklaying- 20 Nov 2023
I am a tradesperson myself (Gas engineer) and work to high standards and am very pleased with the work carried out. Steven and his team have been fantastic from initial quotation to giving advice and explanation through out the process so we were fully informed as the work was being completed. Done to a very high standard and on time. We have already booked Rsb again for a project next year. Don’t hesitate if you are looking for a reliable trustworthy builder these guys deliver ! Thank you again Steven 👍
Northern Home Improvement LTD
Rating: 3 out of 5
Extension Builder in Castleford
Here at NHI our aim to to remove the stress that is associated with building work. We have developed a comprehensive team of highly skilled and professional trades, creating a one stop to your dream home. We offer a huge range of trades, products and services to attend any budget or expectation. We want to give our customers exactly what they want with our year of knowledge we do our very best to produce a service that everyone can appreciate.
Get in touch
Latest review:
Landscaping- 27 Apr 2026
He didn’t turn up
Mjdobson builder
No reviews yet
Extension Builder in Castleford
I’m Michael I’ve been working in the building trade since I left school in 1982 I l live in Leeds most of my work is in Leeds l love what I do.
Get in touch
New Homes Yorkshire
Rating: 4.7 out of 5
Extension Builder in Castleford
With over 30 years industry experience we have a wealth of knowledge and talent. From extensions to home renovations, new kitchens and other projects. You can count on us to get it done and within budget. My team have been working on projects together over the years so you can trust you are in safe hands.
Get in touch
Latest review:
Extensions- 10 Nov 2025
Job was done but not high standards realised after consulting with few other builders the foundations were not of high quality hence paid extra to get them rectified.
Orion Property Solutions (OPS) Ltd
Rating: 5 out of 5
Extension Builder in Castleford
At Orion Property Solutions Ltd we offer a quality and professional building service to clients throughout South Yorkshire and surrounding areas. With over 60 years of experience among team members, we specialize in home renovations, extensions, and loft and basement conversions. From design, drawings, planning, and project management through to completion. We aim to help our clients achieve their goals in their homes and offer only the most honest and reliable building service.
Get in touch
Latest review:
It is my pleasure to recommend the services of Orion Property Solutions. We were impressed on every aspect of the cooperation from planning and carry out the work. We cooperate with them during a complex renovation almost 100 years old semidetached house. We were impressed with their professional attitude and complexity of task they could finalised. They were helpful and gave us priceless advice when it came to technical knowledge and expertise. During the project, there was a profesional and clear communication to use they were always on schedule. I am confident that you cannot go wrong by hiring them for your project.

4.4

Top rated Extension Builders

Our Extension Builders in Castleford, are rated 4.4 out of 5 based on 7 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 Castleford?

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 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 who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Castleford?

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

Find extension builders in Castleford with MyBuilder

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

Step 2: Compare different extension builders in Castleford

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

Step 3: Hire Castleford extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Castleford, 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 extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Castleford extension builder before hiring?

Before hiring an extension builder in Castleford or extension building company in Castleford, 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?

An extension builder in Castleford 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 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?

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 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 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

Can an extension builder in Castleford help with planning permission?

Yes, many extension builders in Castleford 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 handle everything from design to construction?

Many Castleford 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 help with materials and finishes?

Yes, most extension builders in Castleford 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.