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About us

Liam Hennessy:

I started a roofing company in my family's name, Hennessy, when I was just 23 years old. After finishing school, I dove headfirst into the trade, working on roofs throughout London and my hometown of Dublin, Ireland. It was common for families in Dublin during the 1950s, 60s, and 70s to have their children working from a young age to make ends meet. My family was no exception; we earned just enough each week to feed and keep warm in our old tenement houses. With work scarce, my brother Tom and I often travelled back and forth to London, where I honed my skills in roof slating, tiling, and installing membrane felts and lead on chimneys and roof valleys. Today, our family business proudly bears the name D. Hennessy Roofing in both our Drumcondra and Clonskeagh offices. People often ask me what the "D" stands for, and I'm happy to say it's my eldest son, Darren, who showed a keen interest in my roofing tools from an early age. He's now a skilled roofer himself, carrying on the Hennessy name as a master craftsman in Dublin and throughout Ireland.


Darren Hennessy:

Greetings to all readers and customers of D.Hennessy Roofing! I am honored to introduce myself as the current owner of our family business. My father, Liam Hennessy, has successfully run this roofing company in Dublin for 40 years. As a family-run business, we take great pride in providing top-quality roofing services throughout Dublin and Ireland. 

I began my roofing career at the young age of 16, learning from my father and adopting his expert techniques. His teachings have made me a skilled craftsman, which I apply to every roofing project I undertake. Today, we serve many customers throughout Dublin and maintain a reputation for excellence in our work.


We are a family of roofers with generations of experience serving Dublin for over 40 years. As licensed, insured, and certified roofers in Dublin, we are proud members of the National Guild of Master Craftsmen. At D.Hennessy Roofing, we take great care of your roof and provide free quotations and emergency repair services.


We offer a comprehensive range of roofing services and are one of the most reliable roofing companies in Dublin. We welcome roofing projects of any size and strive to keep our customers happy and their homes leak-free. Our company is known for delivering great roofing services, excellent customer service, and high-quality results in every project we undertake.


At D.Hennessy Roofing, we have complete public product and employer's liability insurance. Our policy is available to view upon request. We take pride in providing the highest level of craft, and we ensure that you receive nothing but the best when you choose us as your roofer in Dublin. Whether it's replacing a damaged slate, repairing your flat roof, or installing a new roof, we have the professionalism and expertise required to offer you a first-class service, regardless of the job's size. 


To learn more about our Dublin-based roofing company, you can visit our website. If you want a free callback, visit our contact page.

List of Services We Offer

Our team is made up of dedicated and skilled roofing contractors in Dublin. All our roofing services are tailored to meet the needs of our customers, all at an affordable price.


New Roof


Repairs &


Flat Roof


Emergency Roof


Installation Repair


Gutter Cleaning


Asbestos Removal


Liquid Roof Waterproofing






Drone Roof



Our Testimonials

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Excellent work from D Hennessy and his team truly afficent hard working family company and a fantastic job on my roof, tks again Darren.

Paul Barrett

For Your Free Call Out And Roofing Estimate Get In Touch Today

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