Building & Renovations
Professional Building & Renovation Contractors – Northern Ireland
Blackthorn Building & Maintenance specialises in expert building and renovation services for homes and commercial properties across Northern Ireland. With over 25 years of experience, we deliver high-quality craftsmanship on everything from house extensions and structural alterations to new build homes and full property refurbishments.
We take pride in managing projects from start to finish – ensuring your vision is brought to life with precision, care, and attention to detail.
Our Building Services
We offer a full range of building and renovation solutions tailored to your needs. Whether you’re upgrading your current home or starting from the ground up, our team is here to guide you through each stage of the process.
All works are completed to UK building control standards and fully insured for your peace of mind.
Trusted by Homeowners, Landlords, and Businesses Across Northern Ireland
With decades of experience and a reputation built on reliability, Blackthorn Building & Maintenance stands out for quality service and lasting results. From major building work to quick-response maintenance and insurance repairs, our clients choose us because we deliver – on time, on budget, and to the highest standards.
House Extensions
Maximise your living space with a seamless rear, side, or wraparound extension.
Garage Conversions
Turn underused space into functional living areas such as offices, bedrooms, or gyms.
Structural Alterations
Create open-plan layouts, remove load-bearing walls, and reconfigure your interior for modern living.
New Builds
From foundations to final finish, we manage the full construction of bespoke new homes.
Full Renovations
Turn underused space into functional living areas such as offices, bedrooms, or gyms.
Groundworks & Bricklaying
Create open-plan layouts, remove load-bearing walls, and reconfigure your interior for modern living.
Why Choose Blackthorn for Your Renovation or Build?
At Blackthorn, we believe in doing the job right – first time, every time. We don’t cut corners. We use
quality materials, experienced trades, and ensure every stage of your build is completed with safety,
compliance, and craftsmanship at the forefront.
Made-to-Measure Building Solutions
All work is tailored to suit your space, requirements, and budget.
Trusted, Local Experience
Over 25 years of hands-on construction knowledge across Northern Ireland.
Fully Insured & Registered
We’re CSR registered and fully insured for your protection
From Design to Completion
We manage your build from concept through to handover – with clear communication and timelines.
Yes – we’re happy to provide a site visit and no-obligation quote
We work throughout Northern Ireland – just get in touch to confirm your location.
We can assist with planning, design, and submissions through our network of trusted architects.
Yes – we specialise in both renovation and new build construction.
Absolutely – we provide renovation and building work for domestic and commercial properties alike.
Timeframes vary depending on the size and complexity, but we’ll give you a clear project schedule.
Request a Free Building Consultation or Quote
Whether you’re planning a new build, house extension, or structural upgrade, we’re here to help.
Contact Blackthorn Building & Maintenance today for expert advice and a free, no-obligation quote.
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