OS HOLDING Home Renovation & Attic Conversion Dublin
Dublin-based renovation contractor handling attic conversions, extensions, insulation, and full home refurbishments.
What customers love
- Attic conversions completed to a high standard
- Vadim praised for clear communication and pricing transparency
- Handles complex projects including Victorian properties and aerogel insulation
Worth noting
- One attic conversion reported as poorly insulated and below safety standards
- Rectification requests allegedly ignored after substandard work was flagged
Best for
Homeowners in Dublin seeking attic conversions, renovations, or insulation upgrades.
Attribute scores
Recent reviews
Initially gave this company 5 stars as we thought the work was great - we were fooled. Sub standard work completed in Attic conversion, which we were lied to about the time and repeatedly since when asked for rectification work. Not properly insulated and dangerous by industry standards. Would not recommend!
Oleg and his team provided insulation and vents in some rooms in our house earlier this year. We found him easy to deal with. He patiently dealt with a complicated proposal involving aerogel insulation. Because the house is Victorian it was less straightforward. There were some snags at the end which he and his staff attended to very well. We are happy to recommend him
Can’t recommend enough. Great dealing with Vadim and Russell, perfectly timed and thought through advice when needed. Full renovation and extension executed to a high level. Will use again and regularly recommend to family and friends.
In March 2025, OS Holdings, Vadim, and the team completed the conversion of my attic. I am highly impressed with the outcome. From the initial engagement with Vadim regarding pricing to the exceptional quality of the construction and assistance with procurement, their professionalism was evident throughout. I highly recommend their services.
I deeply recommend his services. They try to help whatever you need, work hard and care about any issues you might have after they finish. They have done a quick and amazing job here with tiling, laminate flooring, my bathrooms, and installing my kitchen. I'm completely satisfied with the result! Thank you guys!