Extension Builders in Alnwick, North East England

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 5 (2 reviews)

Easily find verified Alnwick, North East England Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Alnwick, North East England.

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 Alnwick, North East England

46 Results

Sort by:

Appleby builders
New on MyBuilder
Extension Builder in Alnwick, North East England
I am a 27 year old builder who specialises in bricklaying/stone work , I’m also a qualified flat resin roof installer and also a resin drive installer with certificates, can put my hand to a lot of different trades my work and enthusiasm speaks for itself
Get in touch
LW Building Solutions ltd
No reviews yet
Extension Builder in Alnwick, North East England
We are a small business with a big reputation covering all of the north east. We take a lot of pride in our work covering a large range of building.
Get in touch
KCM BUILDERS LIMITED
No reviews yet
Extension Builder in Alnwick, North East England
KCM Builders Ltd is a family run building company. We are fully qualified in joinery and bricklaying and undertake new builds and extensions on a regular basis. We have now got an extensive back catalogue of extensions and new builds we have undertaken in the past. We also work with PVC windows and doors all the time and are very experienced in fitting the new UPVC doors and windows.
Get in touch
Grant Joinery/Building Ltd
Rating: 5 out of 5
Extension Builder in Alnwick, North East England
I am a fully qualified carpenter/joiner with 23 years experience and take on all types of building/joinery works and always complete work to a very high standard.
Get in touch
Latest review:
Carpentry- 26 Aug 2020
Reliable and good comms. Would use again for sure
Northern Stoneworks
Rating: 5 out of 5
Extension Builder in Alnwick, North East England
Stone mason covering all aspects of stone and tile work. Whether it be new builds and extensions to retaining walls, patios and tiling. All aspects of stone and tile work covered in the north east. Recently worked as a stone mason in British Columbia, Canada for two years.
Get in touch
Latest review:
Stonemasonry- 5 Mar 2026
Liam provided expert advice on stone selection and finish, liaised with stone supplier on sizes and quantities etc then managed the job through to completion. Very Professional job with nice finish and all work areas left clean and tidy at the end of each day. I would not hesitate to use Northern Stonework again for any masonry or stonework. Excellent.
Dcs building and joinery
No reviews yet
Extension Builder in Alnwick, North East England
Small company who specialises in new builds. house extension, loft conversions, garage conversions and any kind of building work
Get in touch
N elliott plastering
Rating: 5 out of 5
Extension Builder in Alnwick, North East England
I am a self employed plasterer and have been trading since 2001 my work includes plastering rendering boarding mainly but take on all aspects related to plastering
Get in touch
Latest review:
Plastering- 22 Dec 2021
Nigel went out of his way to help me before Xmas, as my daughters room has been unusable since the storm a few weeks back. He fitted the work in to a time convenient for me, and all 3 lads were very helpful and friendly throughout, and also beat my other quotes. Thankyou Nigel and team, I will definitely recommend to others.
JOLI Construction
No reviews yet
Extension Builder in Alnwick, North East England
We undertake any sort of building work, either as principle contractor or sub-contractor. No job too big or too small. Experience as Site Manager for a larger construction firm, installations manager for bathrooms, bedrooms and Kitchens and renovation of Grade II listed buildings.
Get in touch
Inter-City Developers
Rating: 5 out of 5
Extension Builder in Alnwick, North East England
At Inter-City Developers we have every trade you need to produce medium to large scale projects. JOINERS, BRICKLAYERS/STONE MASONS, ELECTRICIANS, PLUMBERS/HEATING ENGINEERS, PLASTERERS, FLOORLAYERS AND PAINTERS. We undertake all aspects of home improvements from concept to full completion, including Home Extensions, Loft Conversions, Garage Conversions, Kitchens & Bathrooms. We project manage everything for you so you always have one point of contact with no subcontractors to deal with. Plus we can take care of all your planning permissions using our own Architects & Structural Engineers to avoid lengthy delays. We pride ourselves on running our projects to agreed deadlines and deliver on time, every time. We are a forward thinking company and can help you visualise your completed project with 3D DESIGNS, giving advice and inspiration along the way, we never lose sight of the small things that make the completed job just that bit better – our attention to detail is first rate and we always strive to outdo our competition giving you the best outcome for your dream project – let us inspire you Check us out on facebook - Inter City Developers NE Ltd
Get in touch
Latest review:
Extensions- 21 Jun 2026
We have cjosen inter-city Developers, Ray was very good whe. He came to advise and quote the works, Builder a Are due to start tomorrow, Watch this space ..
Capital lofts ltd
Rating: 5 out of 5
Extension Builder in Alnwick, North East England
Capital lofts & Construction are a design and build building company with over 20 years of experience, we can provide a full package from Building your loft and Extension to Architectural drawings, planning and structural engineers calculations. All our builds come with a 5 year guarantee.
Get in touch
Latest review:
Loft Conversion- 17 Feb 2021
The quote was competitive and kept to, with very reasonable charges for extras requested. The team were very accommodating and did everything I asked as the job progressed. In addition, some of Steve's suggestions made a big difference to the final result which turned out excellently. Overall they did a great job and I would definitely use again and recommend to others
LG PROPERTY AND MAINTENANCE LIMITED
Rating: 5 out of 5
Extension Builder in Alnwick, North East England
Hi everyone, We are a friendly, reliable, and professional company that takes great pride in delivering high-quality workmanship. We undertake all aspects of trade work from hanging a door to a full scale renovation from start to finish and maintain excellent communication throughout every project to ensure a smooth and stress-free experience for our customers. For your peace of mind, we are fully insured and can provide proof of insurance before any work begins on your property. Our team consists of eight skilled tradesmen with a combined 31 years of experience across a wide range of trades. If there’s anything we can help with, please don’t hesitate to get in touch. We’re always happy to offer advice and discuss your requirements. We provide free quotations, and we’re happy to carry out as many site visits as necessary at no extra cost. Many thanks, Lee
Get in touch
Latest review:
Lee converted our property from a 4-bedroom house into a 6-bedroom HMO, and he did an amazing job while keeping to the agreed 6-month timeline. Lee and his team delivered on every expectation at every stage of the project, which included a loft dormer conversion and a rear extension. They also completed six en-suite bathrooms, a new kitchen, a full rewire, plastering throughout, plumbing, joinery works, damp-proofing works, and installed new fire escape windows throughout the property. Lee managed the entire process professionally and ensured everything was signed off by Building Control. To date, Lee and his team have completed six properties for us, and we will continue to use them in the future because of their reliability, professionalism, and consistently high standard of workmanship. We would highly recommend Lee and his team to anyone looking for quality building work.
Gh building
Rating: 5 out of 5
Extension Builder in Alnwick, North East England
Im Mike, I've been in the building company for 25 years and I've now got my son Andre helping me develop the company and bringing more people joy with grade A jobs. I got into the building game when i came back from Tenerife in 1999 i decided i wanted to do something that would leave people with a smile on there face. We do anything from changing a door to a new house build.
Get in touch
Latest review:
Windows & Doors (uPVC & Metal)- 30 Oct 2020
Very friendly and efficient. Left house tidy each day and would recommend.
AC groundworks & building
No reviews yet
Extension Builder in Alnwick, North East England
all types off ground works and building flagging theres no job to be or to small all work done to top standard indian sandstone driveways block paving concrete concrete printing porcelain tiles curbs tarmac drainage artificial grass full garden clearances fencing decking hedge trimming gardening tree surgeon extensions Roof repairs Full flat roofs gutters fascias and soffits pointing Slating & Tiling lead work
Get in touch
Leading Edge Electrical Contractors Ltd
Rating: 4.9 out of 5
Extension Builder in Alnwick, North East England
With over fifty years combined experience, we are a team of fully qualified electricians. Our portfolio over the years is vast with works undertaken across all sectors, Commercial, Domestic, and Industrial from small domestic to bespoke high end homes, Churches, Care homes, Retail premises, Offices, Bars and Restaurants, Mosques, Warehouses, and Takeaways across the whole of the North East and West Yorkshire, ranging in project value from £100 to in excess of £3 Million. No job is too big, no job is too small for our dedicated team, we offer both installation and maintenance contracts within the following fields.... New Installations / Rewiring / Power & Lighting / Fire & Security / CCTV / Emergency Lighting / Door Access Control / Inspection & Testing / PAT Testing / Electric Vehicle Charging / Solar / Servicing & Maintenance Contracts In addition to Electricals, we also work as part of a larger group of tradesmen which includes Builders, Joiners, Plasterers, Painters & Decorators, and Plumbing & Gas Engineers so are able to look after any and all needs that your project may require. Please feel free to give us a call.
Get in touch
Latest review:
Electrical- 29 Aug 2025
Excellent very happy and will recommend
Pearsons Development and Property Services Limited
Rating: 5 out of 5
Extension Builder in Alnwick, North East England
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.
Get in touch
Latest review:
Carpentry- 19 Oct 2016
Would highly recommend Mark. He's done a great job and was very reliable.
K S Building Maintenance and Consultancy
Rating: 5 out of 5
Extension Builder in Alnwick, North East England
K S Building Maintenace and Consultancy supply free quotes, estimates as well as advice and reports on all your building needs from extensions to general maintenance no matter how small with no obligation. We pride ourselves on giving a professional but personal service.
Get in touch
Latest review:
Conversions - General- 11 Feb 2023
Absolutely fantastic. Couldn’t rate them enough. High standards, super clean and tidy and very trustworthy. Already gone back to them for additional quotes. Won’t use anyone else now. So glad I found them!

Top rated Extension Builders

Our Extension Builders in Alnwick, North East England, are rated 5 out of 5 based on 2 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 Alnwick, North East England?

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 Alnwick, North East England 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 Alnwick, North East England who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Alnwick, North East England?

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

Find extension builders in Alnwick, North East England with MyBuilder

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

Step 2: Compare different extension builders in Alnwick, North East England

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

Step 3: Hire Alnwick, North East England extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Alnwick, North East England, 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.

Alnwick, North East England extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Alnwick, North East England extension builder before hiring?

Before hiring an extension builder in Alnwick, North East England or extension building company in Alnwick, North East England, 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 Alnwick, North East England?

An extension builder in Alnwick, North East England 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 Alnwick, North East England 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 Alnwick, North East England?

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 Alnwick, North East England 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 Alnwick, North East England 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 Alnwick, North East England

Can an extension builder in Alnwick, North East England help with planning permission?

Yes, many extension builders in Alnwick, North East England 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 Alnwick, North East England handle everything from design to construction?

Many Alnwick, North East England 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 Alnwick, North East England help with materials and finishes?

Yes, most extension builders in Alnwick, North East England 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.