Request a Quote


    Commitments for Project

    OS Holding Construction will provide the skills, management, and exceptionally trained tradesmen necessary to complete your project. We will guide you through each phase so that your experience is an informed, positive and successful one.

    Read More

    OS Holding Experience

    OS Holding Construction has extensive experience in general contracting, construction management, design/build and owner's rep services.

    Read More

    Quality Control

    Information Modeling in Construction Mock up, monitor quality on a daily basis, and reject non-conforming  Meetings for Coordination and Toolbox Safe and Clean Work Environment Warranties, as well as their implementation and management

    Read More

    Our Services


    Attic Conversion

    OS Holding specialises in loft conversions in Dublin. Our attic conversions and extensions are covered by a 10-year warranty from design to completion.



    A house renovation can improve your quality of life by providing you with the space or amenities you require to live your life to the fullest. Based in Dublin.


    Home Extension

    OS Holding is a Dublin-based Design and Build kitchen and house extension builder. We specialise in rear, side return, and wrap-around extensions.


    Kitchen Refurbishment

    OS Holding - Dublin's Leading Kitchen Fitters Kitchen Installation | Kitchen Renovation | Kitchen Refurbishment | Kitchen Fitting


    Floors & Tiling

    OS Holding wall and floor tilers in Dublin. Specialists in kitchen and bathroom tiling, large floor areas, site work and commercial projects.


    Bathroom Refurbishment

    Working with fully-insured Bathroom Fitters Dublin, Offering the Complete Array of Bathroom Fitting Services and Bathroom Refurbishment Services in Dublin.


    Painting And Decorating

    Residential painting and decorating services for condos, apartments, bungalows, and single-family homes.



    We Offer Complete Range Of Bricklaying & Pointing work Services Covering All Over Dublin

    House Insulation

    With approximately 35% of a home's heat loss occurring through the walls, insulating your solid walls will help to reduce these losses.


    Why Choose Us

    The OS Holding provides a high-end service for Victorian terrace loft conversions to modern two-story extensions. Our commitment is to provide the same level of attention and finish to all of our clients, managing and completing every aspect of the project ourselves.

    We Price Match

    Have you found a lower price? Tell us, and we'll gladly match it.

    Stress-Free Build

    We assign a dedicated project manager to ensure that your build goes smoothly.

    High-Quality Deliverables

    To exceed our customers' expectations, we always strive for the highest quality.

    Deliver On Time

    A quick and seamless planning, design, and construction process with no surprises at the end.

    10 Years Of Combined Experience

    Customers trust our knowledge, expertise, and word-of-mouth referrals, which are backed up by over ten years of combined experience.

    Admired By Our Customers

    Exceeding customers' expectations and assisting them at every stage of the process has made us a respected company, as evidenced by their testimonials.

    Dublin Building Contractors

    One of Dublin’s most esteemed building contractors is Osholding. We provide services to the Dublin area from our Dublin location.

    The construction of luxurious, cutting-edgely designed new builds, renovations, extensions, basements, lofts, bathrooms, kitchens, and smart home systems is a specialty of Osholding Building Contractors.

    We offer a full-service, turnkey design and construction solution.

    All of our cherished clients now have the chance to fulfil their dream of owning a home.

    From the beginning to the end of the planning process, our qualified team will lead you.

    Our team of expert tradespeople has received training in the virtues of cleanliness, orderliness, and discretion. We promise to always try our best to minimise disruption to our clients’ daily lives so they can continue to live in their homes while work is being done.

    After working in the sector for ten years, we have assembled a strong team of contractors who work with and for us. Since our establishment in 2006, we have been offering all of our esteemed clients professional, trustworthy, and knowledgeable service.

    Over this time, Osholding has grown and is now regarded as one of Dublin’s top design-build contractors. We have a large selection of lighting, electrical, and bathroom and kitchen fixtures and fittings on display. We encourage project specifiers, architects, and interior designers to meet with clients for proposal and specification-related purposes.

    For More Information or to Request a
    Free Quote Call 01 524 1644

    contact us
    Call Now Button