About us

DMcL Building Contractors specialise in quality custom home construction.  Based in the South East, services include new builds, extensions, renovations, refurbishments, insurance building works, and commercial fit outs. We offer a comprehensive service; start to finish providing reliable, efficient, hands on service for small to medium size construction projects. 


As a certified passive house contractor, we feel strongly about Energy Efficiency in today’s construction industry and try at all times to ensure all our projects are constructed using the most energy efficient techniques. Each of our homes is unique as we work with our clients to design a home that fits their architectural style and budget. Our attention to detail ensures a quality product that will stand the test of time.

We also have an extensive background and history in residential renovations and expansions. Renovations work brings distinctive challenges that DMcL Building Contractors deals with in a professional and straight-forward manner. DMcL Building Contractors are approved passive house contractors.  We are also registered contractors with SEAI, CIRI, NSAI, CIF, Homebond, Weber and STO .

Our reputation is built upon, reliability, experience, craftsmanship, flexibility and safe work practices.

Derek McLoughlin


Derek McLoughlin is a qualified plastering and passive house contractor.  He has over 20 years’ experience in the construction industry. Derek has his own plastering business (DMcL Plastering Ltd) which offers a wide range of services including external & internal plastering, insulation, colour render and lime plastering works.  Derek has worked with large construction firms all over the South East. He has extensive experience in insulation and retrofitting. He has undergone many courses in Health and Safety, and Energy Efficiency and Conservation and along with his staff continues to educate himself on many aspects of construction ensuring a quality product at all times.