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About Kieran O'Sullivan Building Contractors

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Kieran O'Sullivan building contractors are one of the biggest businesses in county Cork, Kerry and south west Ireland who are involved in the building industry. We are one of the few building contractors that has survived the recession during the past number of years. As the economic downturn affected every business in Ireland we, like most other companies, had to adjust in order to keep the business afloat.

The good new is that we are still in business and actually have noticed that trade in the building industry is beginning to pick up. Recently, our clients have contacted us for various projects involved in the building sector such as, house extensions, electrical contact work, plumbing, garden walls, driveways. These are just a few samples of our latest work and to see a larger range of our building services you can click any link in the navigation bar above.


KOS Construction Services

From the list below you can see our most common building contractor services. To find out details of these services just click the corresponding link.



If you or any family member require work carried out for either inside or outside the home you can contact us by any of the following means;

Telephone: 087 907 8075

Email: klosllivan@gmail.com

or by filling in our Contact Form

Where we work

Most of our building contract work and related projects are based in county Cork and Kerry. However, members of the KOS Construction team have been involved in work throughout south west Ireland, including county Limerick and Tipperary.

As our work portfolio increases we have found that our team's skills have been required in Cork city almost every week. These projects in Cork range from installing garden fencing and driveway gates, or attic insulation as well as painting and decorating.

If you or any family member require work carried out for either inside or outside the home you can contact us by any of the following means;

Telephone: 087 907 8075

Email: klosllivan@gmail.com

or by filling in our Contact Form


KOS Construction Guarantee

The work carried out by the Kieran O'Sullivan Construction team is all done by time-served, experienced craftsmen. The quality of the work they carry out is the best in the building business and we can guarantee that all projects our team are involved in will be finished to the highest class.

Our team are also fully competent in customer service skills. They will carryout their work with a minimum of fuss and try to do it with as little hassle as possible.

Kieran O'Sullivan's Construction Team

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