Wind-Do Seal Ltd is a wholly Irish-owned company with bases in Kildare and Galway, serving every county in the Republic.
We manufacture and fit a premium range of secondary glazing, window sound proofing and fly screen systems — for both commercial and domestic clients — with an emphasis on quality at an affordable cost. Many of our clients come back to us decades later because the work just keeps doing its job.
Learn About Our Secondary Glazing
Our made-to-measure secondary glazing systems are fitted inside your existing windows, helping to reduce draughts, improve insulation, increase security and dramatically reduce outside noise without replacing your original windows.
View Secondary Glazing →A practical secondary glazing option for wider windows, offering easy access and smooth sliding operation.
Ideal for sash-style windows where the secondary glazing needs to work with the existing window design.
In-frame hinged panels provide simple access for cleaning, decorating and day-to-day window use.
A discreet removable option for windows that only need occasional access while improving comfort indoors.
In 1995 we became the first Irish company to design, patent and produce our own fly screen range. The systems are still made here today.
Hotels, hospitals and government buildings choose us because our work survives high-traffic, high-stakes environments year after year.
Half our work is private homes — a single noisy bedroom, one draughty bay window. We treat one-window jobs with the same care as 200-room hotels.
Every project starts with a free on-site survey. You get a clear, fixed quote — no surprises, no upselling.
Our secondary glazing fits inside your existing window, so listed and period properties keep their character — and gain serious performance.
Customers routinely tell us they've cut heating use noticeably in the first winter after installation. Quieter and warmer in one go.