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    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.

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    OS Holding Experience

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

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    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

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    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.

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

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