Restorations and Alterations in County Tyrone
Building Services in Castlederg

About Donnelly Bros Contracts

Building Services in Castlederg

Donnelly Bros Contracts Ltd is a well-established building company deeply rooted in County Tyrone. With decades of experience serving the local community, we've earned a reputation for providing exceptional building services and exceeding client expectations. Our team of skilled professionals is committed to delivering quality workmanship and personalized service on every project, no matter the size or complexity.

Our Work

Sneak preview of the progress on this fine house, can't wait to see it finished

Don't settle for anything less than the best

Based in Sixmilecross, we cover the whole of the building trade

From laying the foundation of a brand-new home to breathing new life into a historic building, we offer a comprehensive range of building services tailored to the unique needs of County Tyrone. Whether you're dreaming of a custom-built house, planning a major renovation, or simply need a small extension, our expertise covers all aspects of construction, ensuring your project is completed to the highest standards.

When you choose Donnelly Bros Contracts, you're choosing a partner who understands the local landscape. Our deep knowledge of County Tyrone allows us to navigate regulations and source the finest materials, ensuring your project is built to last. We prioritize clear communication, transparency, and customer satisfaction, working closely with you every step of the way. With competitive pricing and a commitment to exceeding expectations, we deliver exceptional value without compromising on quality.


Contact page
Building Services in Castlederg
building in Sixmilecross

Our services include, but are not limited to the following;

  • Building services
  • House extensions
  • Loft conversions
  • 13 tonne and 3 tonne digger hire
  • 3 tonne dumper hire
  • Restorations
  • Alterations
  • Joinery
  • Forklift hire
  • Groundswork
  • First and second fix joinery
  • New build projects undertaken from planning to completion
  • Renovations and alterations including disabled adaptions
  • And more!
View our recent projects

How we work

Our process

Tell us the details


Reach out to us using whichever contact method suits you, and tell us about your project.

We provide a quote


We will then go over the details and provide you with a no obligation quote to have the work carried out.

Receive a start date


If you're satisfied with the quote, we will contact you to arrange a date for us to complete the work.