Extension Builders in Blackburn

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.6 (9 reviews)

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

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 Blackburn

412 Results

Sort by:

Northanlights tree and landscaping services
New on MyBuilder
Extension Builder in Blackburn
I’ve took over the family business what’s been ruining for 40 years
Get in touch
Mark Forrest & Co Ltd
No reviews yet
Extension Builder in Blackburn
We supply and fit conservatories, Orangeries, extensions, replacement roofs, windows, doors, patio doors, bi-fold doors, Replacement facial and soffits.
Get in touch
D&C Groundwork and Maintenance
No reviews yet
Extension Builder in Blackburn
We are a family run business local good work at good prices
Get in touch
A Y builder
No reviews yet
Extension Builder in Blackburn
Fully qualified Bricklayer with a CSCS card Blue. 15+ years experience. Available to do small bricklaying jobs, pointing and jointing, moving / blocking windows plus more. I believe in getting the job done the right way first time!
Get in touch
LexBuilding Ltd
No reviews yet
Extension Builder in Blackburn
We are new on my builder but we are in the trade for 10 years now if you need to see our work you can check our checkatrade profile or get in touch and we will give contact details of many of our old customers that will tell you how we did on their projects.
Get in touch
CFL Joinery & Construction
No reviews yet
Extension Builder in Blackburn
CFL Joinery & Construction is led by a fully qualified Level 3 Site Joiner/Carpenter (City & Guilds) with many years of hands-on experience across the construction industry. We combine expert knowledge, precision craftsmanship, and a genuine commitment to delivering high-quality workmanship on every project. Due to continued demand from returning clients and recommendations, we have expanded our services to provide a wider range of building solutions. Alongside professional joinery, we can assist with general construction including electrical installation, plumbing and gas works, bricklaying, and other associated trades, offering clients a reliable one-stop solution for their project. All work is completed to a high professional standard with close attention to detail from start to finish. We aim to offer competitive and transparent pricing and can often improve on previous quotes without compromising on quality. We pride ourselves on being friendly, reliable, and approachable, and we always do our best to accommodate urgent or time-sensitive work wherever possible. For enquiries, advice, or quotations, please get in touch by phone or email. We are always happy to help and discuss your project.
Get in touch
Vinny Anderton
Rating: 5 out of 5
Extension Builder in Blackburn
I am a time served bricklayer with over 40 years experience. I can take on any job small or large including complete extensions including landscaping. I am happy to show potential customers any previous jobs that I have completed. I am a trustworthy honest reliable bricklayer and will not promise to take on any job that I cannot commit to or let you down.
Get in touch
Latest review:
Removal of existing conservatory and erection of single storey extension across the full width of back of the house . Including pitched roof with sky lights, patio doors and window to rear and side. Existing rear doors and walls were also removed. Throughout the build I was regularly consulted on progress, any issues were discussed and alternative products sourced ( roof windows) The work was completed to a very high standard, any delays down to weather issues were always discussed .every week I was aware of the plan of work for the following week. Mr Anderton was very professional and reliable throughout the build.
JMC Construction and building services
No reviews yet
Extension Builder in Blackburn
Established in 2001 by James Mcfadyen. We carry out quality building work like extensions, alterations, plastering, property maintenance and repairs.
Get in touch
ALPHA SIGNATURE LIMITED
No reviews yet
Extension Builder in Blackburn
Alpha Signature limited is your local steel Fabrication company . We undertake all steel projects, commercial and residential steel building services. Whether you require: - A full industrial steel beam structure. - A secondary steelwork for domestic extension. - agricultural or residential steel sheds. we to provide specialised custom steel fabrications and high-quality steel engineering services.
Get in touch
PJL Building Works
Rating: 5 out of 5
Extension Builder in Blackburn
Hello I'm Paul. Thanks for reading our profile, We have 25 years experience in building, with vast experience in most trades. We are fully insured local builders, our line of work is residential and commercial Extensions, Garden walls, Structural alterations, New builds, Outbuildings, Conservatory bases, Conversions. I like too run my business the way I’d want a builder too treat me. Quality workmanship, Reliability, Site left clean and tidy daily, Minimum stress for customer, Everyone happy on completion of work.
Get in touch
Latest review:
Extensions- 9 Jul 2026
If you want to do an extension Paul and his crew are right people for you. From the begining to the end you're being informed about the stage. If in doubt Paul is always responsive over the phone. Thank you for transforming our home.
Brickworknw1
Rating: 5 out of 5
Extension Builder in Blackburn
We are BNW and carry out all types of brickwork schemes. We are primarily house builders and restoration specialist. With over 25 years experience we know how to get the job done. Chas registered, all insurances in place so you are in good hands.
Get in touch
Latest review:
Extensions- 30 Jan 2026
Danny and his team did a fantastic job. We are extremely pleased with the timescale in which they delivered the project to an excellent standard. Would highly recommend.
aaron young
No reviews yet
Extension Builder in Blackburn
Hello there me and my father are a team that build to a very high standard with a range of other construction trades along side our selfs to make your experience a easy transition from start to finish
Get in touch
Alpha Construction Group (nw)
Rating: 4.3 out of 5
Extension Builder in Blackburn
Alpha construction group is the culmination of over 40 years in the building industry. our skilled tradesmen have various backgrounds such as plumbing, heating, brick laying, joinery and specialist skills such as fireplaces and media walls. we deliver high-quality installations for all your home projects from a small wet room up to a large extension. we focus on craftsmanship, safety, and customer satisfaction, we manage every stage of the build with care and precision. From initial planning to final handover, our experienced team is committed to completing projects on time, on budget, and to the highest standards. we are registered with gas safe, Oftec and we are full insured. we look forward to meeting you bringing your projects to life. We have a second profile on mybuilder for our stoves and fireplaces with over 60 reviews all 5 out 5 star.
Get in touch
Latest review:
Kitchen Fitting- 16 Jul 2026
Good guy, did the work but there is lack of finishing in the job. I appreciate his honesty that he made error and rather than hiding, he accepted and fixed it for us. Kitchen looks good but it could be better with little bit more perfection!
Wyre Build
Rating: 4.6 out of 5
Extension Builder in Blackburn
We are a family run business with great a service and prices. We provide a professional bricklaying service across the Northwest. With all aspects of the building trade covered, Wyre Build are the ideal building firm to manage all your bricklaying needs. From conception to completion, Wyre Build guarantee to deliver you a professional and personal service. So are you looking for reliable bricklayers? If so please get in touch.
Get in touch
Latest review:
Conversions - General- 16 May 2026
All good. No issues. Half the price of competition.
Brantwood Design & Build Ltd
No reviews yet
Extension Builder in Blackburn
We are a construction company who has been trading since 1993. In the past we have completed commercial projects as well as domestic, we have worked closely with the NHS over the past 14 years to build and fit out medical centres across the north of England. We have also converted several old mills into apartments for a client in Clapham London and built 27 new houses in Leicester to name a few.
Get in touch
Benchmark Builders
Rating: 5 out of 5
Extension Builder in Blackburn
Family run business with over 15 years experience in the construction industry. I pride myself on the good work I deliver, I am a clean, tidy and punctual worker. I am willing to undertake any size or type of job with a very friendly and helpful attitude.i use all the same trades as I use on all my jobs and will take care of all your needs
Get in touch
Latest review:
Handyman- 16 Mar 2017
Robert was quick to respond and carry out the work with good communication and the work was carried out to a good standard.

4.6

Top rated Extension Builders

Our Extension Builders in Blackburn, are rated 4.6 out of 5 based on 9 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 Blackburn?

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

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

What are the hourly rates of extension builders in Blackburn?

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

Find extension builders in Blackburn with MyBuilder

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

Step 2: Compare different extension builders in Blackburn

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

Step 3: Hire Blackburn extension builders with confidence

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

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

What to ask a Blackburn extension builder before hiring?

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

An extension builder in Blackburn 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 Blackburn 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 Blackburn?

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 Blackburn 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 Blackburn 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 Blackburn

Can an extension builder in Blackburn help with planning permission?

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

Many Blackburn 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 Blackburn help with materials and finishes?

Yes, most extension builders in Blackburn 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.