Our qualified and experienced specialists who have had over 18 years of experience in the trade and are all NVQ qualified are passionate about giving you the best service possible. They will make sure that you feel comfortable throughout the process, guiding you throughout the whole process from design to the finish of the build while trying their best to cause as little inconvenience to you as possible.

We offer a wide range of building services here at K O'Brien Roofing & Building, suiting a variety of building needs. These services include:

  • Brick/Concrete Structural Repairs
  • Bricklayer
  • Brickwork/Pointing
  • Car ports
  • Cladding
  • Concreting
  • Extensions/Conversions
  • Flint/Stonework
  • General Building
  • Mastic Sealant
  • New Builds
  • Project Management

All of our services are covered by our Public Liability Insurance with a value of up to £1,000,000 and are completed by our trained specialists.

We are based in Watford and cover Watford and the surrounding areas.

If you have any questions on these services or if the service you require is not listed above, please do not hesitate to contact us on 07793 498 860 or contact ushere.

from general building works to building extensions, we can do it.

CALL US TODAY ON 07793 498 860

​​Rebuild of external boundary wall.
“Kevin and his team (including Katrina in the office) were professional throughout. The initial quote was provided quickly and the job fitted in at a time to suit me. They worked non-stop to get the job completed on time and to a high standard, keeping me updated throughout and quickly finding solutions to issues encountered as the work was underway (e. G. A digger was required to remove a large tree root which could not have been anticipated before the old wall was removed). Neighbours have commented on the quality of the brickwork. I would have no hesitation at all in recommending.”

Customer in Watford

7 September 2016

For more testimonials of our work, take a look at our Check A Trade profile by clicking here.

Or take a look at our Rated People page by clicking here.



At K O'Brien Roofing & Building, we offer a range of building services to fit a variety of needs throughout the house. From General Building Works to Building Extensions, we can do it, and at a great price.