MJS Eco Limited, Replacement Windows and Doors in Laois

MJS Eco Limited is listed on the SEAI register for external windows and external doors, as of the register download on 7 August 2026. Also listed on the SEAI register for dry-lining insulation, external insulation, roof insulation. The register changes, so check the current entry with SEAI directly.

MJS Eco Limited is based in Laois and works across Portlaoise, Portarlington, Mountmellick, Abbeyleix and Mountrath. The SEAI register also lists 11 other counties in their service area, so it is worth asking how far they travel for a job your size.

Most of the housing here is bungalows and two-storey homes on flat midlands farmland, with older stock in the market towns. The local condition that shapes the job is inland midlands weather, cold still nights that show up every draught and cold bridge, which is why still frosty nights make draughts obvious, which is why so many enquiries here start in January.

Use the enquiry form on this page and it goes straight to them, or ring them on 057 851 0020. Ask for a measured survey before any price, get the quote in writing, and confirm who makes good the plaster inside and the render outside once the old frames come out.

Ask for a measured survey before any price, and get the quote in writing afterwards. Confirm three things in particular: whether removing and disposing of the old frames is included, who makes good the plaster inside and the render outside, and what the lead time is. Made to measure frames run six to twelve weeks, so the survey date is not the start date.

Portlaoise is in Laois, where MJS Eco Limited is registered, so yes. They work across Portlaoise, Portarlington, Mountmellick and out to Mountrath. Whether they will travel to a specific townland is worth asking directly, particularly for a smaller job.

No Google rating is showing for MJS Eco Limited at the moment. That can mean nobody has left one, or that fewer than three people have, because we hold a rating back below that rather than presenting one review as a score. It says nothing about the quality of their work. Ask them for two addresses locally where they have done the same job, and go and look at them.