Extension Builders in Cramlington

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.6 (10 reviews)

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Some of our top rated extension builders in Cramlington

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Red 4 developments limited
Rating: 5 out of 5
Extension Builder in Cramlington
At Red4 we are a genuine Family run business with over 20 years experience in Windows , doors, conservatories, warmroofs and more. We aim to always provide a first class personal service with top quality products. Having worked for the big local companies I (Michael ) decided the time was right just over two years ago to set my own business up and do things my own way the right way . From small repairs to full extensions we will always make sure every customer is as important as the next. We don’t have salesman so the person you speak to on the phone or at your door will be the one surveying/ installing and doing the work . It is also very rare we would give a quote at point of contact however most quotes will be back to the potential customer within 24 hrs. We aim to give you our best quote first time. When you choose Red4 you can relax in knowing you are working with a trusted family firm, who really cares.
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Latest review:
Extensions- 26 May 2026
Michael and his team completed a fantastic orangery for me. Michael’s attention to detail is amazing and communicated well throughout the whole project. The brickwork was completed by Jason and his team and the job they done was fantastic, clearing all rubbish as they went. Michael then completed the roof and bifold doors. This addition to my ground floor flat is fantastic and will improve my life massively. So a huge thanks to Michael and Jason especially, and the rest of the team that got involved. I would recommend Red4 developments to anyone. Thy are fantastic. I certainly was lucky to find such professional and fantastic guys to complete this project. All the best for the future guys. And thanks again for the amazing job you have ☑️
Complete Building Service
Rating: 4.7 out of 5
Extension Builder in Cramlington
My name is Jake and I run Complete Building Services by providing excellent value for money and first class workmanship. I am proud to say that most of my business comes from referrals from satisfied customers. I can offer a one stop shop for your bathroom and kitchen refurbishments as I am skilled in plumbing,tiling,joinery,plastering and electrical work. I work to a very high standard, always keep my workplace clean, and offer competitive pricing.
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Latest review:
Tiling- 16 May 2024
Jake managed to complete the job quickly and to the good standard. I would recommend him. Thanks!
JT Brickwork services
Rating: 5 out of 5
Extension Builder in Cramlington
Owner-run brickwork business providing quality workmanship, honest pricing and a reliable service. I cover all aspects of bricklaying, including garden walls, repairs, repointing, structural alterations and general masonry work. I take pride in tidy, durable workmanship and always aim to complete every job to a high standard. My goal is to build a strong reputation through reliability, attention to detail and customer satisfaction.
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Latest review:
Bricklaying- 1 Sep 2026
The repairs and alterations to the wall were completely very well and in the time specified.I will definitely use JT brickwork again .
Sjh joinery and maintenance solutions
Rating: 5 out of 5
Extension Builder in Cramlington
I'm a fully qualified time served Joiner with 22 years experience within construction. I've carried out housing renovations, worked on new build projects, social housing and commercial buildings. I specialise in all aspects of joinery and can provide a bespoke service.
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Latest review:
Handyman- 24 Apr 2019
Steven was really prompt across the board, with the initial meeting, giving us a quotation and completing the work. I'm so pleased with the finished product and will definitely be arranging more work with him in the future. Really friendly, hard working and tidy!
Pearsons Development and Property Services Limited
Rating: 5 out of 5
Extension Builder in Cramlington
Pearsons DPS Ltd is a company based in Tynemouth. We also operate throughout the North East, offering a range of joinery services from the small but necessary jobs through to larger scale construction. We pride ourselves on our friendly and reliable approach to all projects undertaken, ensuring the work is carried out efficiently and professionally. All associated trades can be supplied if required using local trusted tradesmen. I am a fully time served tradesman, with over 27 years experience.
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Latest review:
Carpentry- 19 Oct 2016
Would highly recommend Mark. He's done a great job and was very reliable.
ASC Build Ltd
Rating: 5 out of 5
Extension Builder in Cramlington
I would like to take this opportunity to introduce ASC Build. We offer our skills,capabilities,experience and express our interest in providing quotations for undertaking any building work.We are a local company based in wallsend with over 30 years experience.
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Latest review:
Groundwork & Foundations- 18 May 2013
There was great communication from Rory which is reassuring and ASC Build Ltd completed the work prompt and to a good standard. I would recommend Rory and his team.
Steven Carr
Rating: 5 out of 5
Extension Builder in Cramlington
At ASCarr we cover all aspects of the building trade from new builds to renovations, customer satisfaction is top priority.
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Latest review:
Conversions - General- 17 Nov 2019
Our dining room has been transformed. Knowledgeable, efficient, punctual and professional. Highly recommended.
Master Masonry Limited
No reviews yet
Extension Builder in Cramlington
Master Masonry Limited was founded to blend heritage craftsmanship with today’s building needs. Based in the North East, our team brings years of experience in masonry, brickwork, and stonework. We combine traditional techniques with modern execution to ensure strong, lasting results. Our materials are carefully sourced for quality and performance. Every service we offer is tailored to meet the specific needs of each client. We also understand the importance of timelines and take pride in delivering projects on schedule, while treating every property with respect.
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B J W Joinery & Building Ltd
Rating: 5 out of 5
Extension Builder in Cramlington
At B J W Joinery & Building we undertake every aspect of joinery and building. From a single door hung to complete extensions and refurbishments. Our attention to detail and customer service gives us the edge on other trades, giving the client the best experience possible. . Extensions . Refurbishments . Project management . Maintenance contracts . Kitchen installations . Interior and exterior Joinery & Building
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Latest review:
Carpentry- 24 Sep 2015
ben came out immediately and gave a quote. he carried out the work the following day. i was well impressed with his workmanship and would not hesitate to hire him again.
S and L construction
Rating: 4.8 out of 5
Extension Builder in Cramlington
I have 20 years experience in all aspects of loft conversion work including joinery plastering roofing etc , any form of damp proofing, tanking etc as was an employee of a large damp proofing firm (peter cox) willing to look at any jobs no matter big or small
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Latest review:
Carpentry- 4 Jun 2026
Absolute Disaster - Avoid This Rogue Builder At All Costs! I have never encountered such an incompetent rogue builder in my life. What was promised as a 2-week build turned into a 3-month nightmare, and the project is still an absolute disaster. The quality of work is shocking: Structural Issues: They fitted the completely wrong glass doors, meaning we cannot even access the building. Zero Insulation: No insulation was installed under any part of the floor. Damaged Flooring: The floorboards are already lifting and coming up. Terrible Finishing: The interior plastering is incredibly poor and messy. Severe Water Damage: The damp-proof course was simply cut off and left exposed under the decking. Every time it rains, it turns into a swimming pool underneath the structure. To make matters worse, the owner completely disappeared once things went wrong. When you finally catch up with him, he resorts to extreme verbal abuse rather than fixing his mistakes.
R and L Construction
Rating: 4.2 out of 5
Extension Builder in Cramlington
We have in excess of 40 years of industry experience carrying out work from small projects such as maintenance of domestic properties and extensions to working on multi million pound industrial and commercial projects. Our business has been trading for over 10 years with a large amount of satisfied customers in that time, it is family run and we have a commitment to providing quality and customer satisfaction.
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Latest review:
Extensions- 21 Apr 2024
Rob and Lee, have left us with an uneven floor and an unsafe balustrade and will not come back to repair poor workmanship.
Cramlington Builders
Rating: 5 out of 5
Extension Builder in Cramlington
Hi there, my name's Michael and I am a time served joiner, self employed over 34 years. I always leave a clean and tidy job, finished to a standard both myself and the customer can be truly proud of. My time served in the industry speaks for itself!
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Latest review:
Cramlington Builders demolished our existing conservatory and built us a beautiful sun room on the same base. I was delighted with Michael and his team, they were really professional and very switched on. Michael was a great communicator and was ever so reliable. When the glazing turned up to site it was Michael who immediately spotted that the wrong glass had been delivered and that it was not safety glass. We would never have know that and Michael had the glazer return to site to swap the glass. We found the team to be happy in their work and they delivered a really great project for us on-time. The price was the cheapest of the three quotes received and we will definitely use Cramlington Builders again.
Northeast Building Services
Rating: 4.6 out of 5
Extension Builder in Cramlington
We are a local building company who provide competitive pricing and works to a high standard. We have worked for some of the biggest builders in the country for the biggest jobs to the householder requiring the smallest job! Check out our website for photos...
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Latest review:
Extensions- 29 Apr 2021
Lovely guys to work with, very helpful and knowledgable
PRIME GROUNDWORKS AND CIVILS LTD
Rating: 4.8 out of 5
Extension Builder in Cramlington
We are a family run company with a combined experience of over 40 years. We do all aspects of building work, groundworks and landscaping from foundations, drainage and operating heavy plant to block paving.
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Latest review:
Landscaping- 27 Feb 2021
Gary and his team cut corners from the beginning. A job that was quoted to take 4-6 weeks ended up taking around 14 weeks and even then was not completed by gary and his team due to him walking off the job. They used substandard materials which meant things needed replaced before the job had even finished. Overall the “finishing touches” for the job were absolutely horrendous. A child’s playhouse had nails sticking out of the wood. The nails in the fence had all rusted, the lawn wasn’t laid correct so couldn’t drain. The level on extension was completely wrong. Gary himself was quite rude and Him and his team were extremely unreliable. 100% would not recommend, save your time, money and sanity
S Jones Building contractor
Rating: 5 out of 5
Extension Builder in Cramlington
All aspects of the building trade from building a house to extension on a small scale porches joinery to drives and patios roofing and double glazing. We are a small team and have other tradesmen available when needed.
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Latest review:
Carpentry- 7 Sep 2024
Excellent professional service, on time, tidy , very polite, workmanship highest quality. Would definitely recommend this company for any joinery work. Replaced our staircase spindles and handrails. Excellent communication prior to job. Price very competitive.
jays joinery and carpentry
Rating: 5 out of 5
Extension Builder in Cramlington
We are a small company with experience from all aspects. We aim to deliver quality or quantity because if the customer isnt happy the job isnt finished. We pride ourselves on great customer service with fair pricing. More of a insight into our work can be found by search us on facebook.
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Latest review:
Handyman- 24 Aug 2026
Great service, great communication. Will defo be contacting again if jobs are needed. Thankyou

4.6

Top rated Extension Builders

Our Extension Builders in Cramlington, are rated 4.6 out of 5 based on 10 reviews from customers like you.

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

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 Cramlington 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 Cramlington who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Cramlington?

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

Find extension builders in Cramlington with MyBuilder

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

Step 2: Compare different extension builders in Cramlington

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

Step 3: Hire Cramlington extension builders with confidence

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

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

What to ask a Cramlington extension builder before hiring?

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

An extension builder in Cramlington 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 Cramlington 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 Cramlington?

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 Cramlington 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 Cramlington 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 Cramlington

Can an extension builder in Cramlington help with planning permission?

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

Many Cramlington 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 Cramlington help with materials and finishes?

Yes, most extension builders in Cramlington 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.