Window Companies on the Costa Blanca

We start from public business listings for window, door and glazing companies across the Costa Blanca. We remove duplicates, closed businesses and firms that don't do this kind of work, and check each company's website where it has one. Nobody pays to be included.

Both work well when they're specified properly. PVC generally insulates better for the money and doesn't corrode. Aluminium gives slimmer frames and larger sliding doors, but it should have a thermal break (rotura de puente térmico, RPT). Near the sea, ask for a marine-grade finish such as Qualimarine-certified lacquer or anodising.

Window replacement usually needs a minor works notice or licence from your town hall. Rules vary between towns, so ask the installer or the ayuntamiento. In an apartment block you'll normally need the community of owners to agree to anything that changes the façade, including terrace enclosures and glass curtains.

Get at least three written quotes (presupuestos). Make sure each one names the profile system, the glass specification, whether removing the old frames and making good are included, and the warranty. That way you're comparing like with like.

Many do, especially in Jávea, Moraira, Calpe, Altea, Orihuela Costa and Torrevieja. Listings marked 'English website' have English on their own site. If you're not sure, ask when you call.