Estate agents and sellers
A buyer notices old aluminium frames and a sticky sliding door. If a seller wants to replace windows before listing, we survey with your access and send the owner a written quote in English.
You hold the keys; the owner makes the decisions. We measure and fit with your access, and the owner receives a written quote in English that Eduardo explains to them directly.
We speak English. Eduardo answers on WhatsApp, 9:00–20:00 Spain time (8:00–19:00 UK time), and replies within 24 hours.
Tu Ventana Costa Blanca, the Benidorm office of Tu Ventana Madrid, replaces windows in homes looked after by agents, property managers and key holders. We cover 14 towns from Alicante to Denia. You provide access for the survey and the fitting. Eduardo deals with the owner in English and replies within 24 hours.

A buyer notices old aluminium frames and a sticky sliding door. If a seller wants to replace windows before listing, we survey with your access and send the owner a written quote in English.
You open the door on two occasions: the survey and the fitting. We agree the dates with you in advance, and nobody turns up without warning.
For a whole building, the proposal can be prepared so owners abroad can read and vote on it, in English if needed. We respect the colour and design the community has agreed.
The owner stays in charge of every decision. Your role is access and local coordination.
Use the form below with the property, the town and the owner’s contact details, with their consent. Eduardo contacts the owner in English on WhatsApp.
We agree a date with you and measure every opening in person. If the building has rules on works or lift use, tell us before the visit.
The written quote goes to the owner, in English, with the profile, glass, hardware and VAT for each window. Eduardo goes through it with them.
Once the owner accepts, we agree the fitting dates with you and with the owner. Rental bookings and community rules are taken into account.
The finished job is handed over to the owner, or to the person the owner has authorised in writing. That can be you.
Jobs by our Madrid team, the same company as our Costa Blanca office: Kömmerling uPVC windows, doors and enclosures fitted by our own people.




Tell us about the property and the owner. Eduardo will reply in English within 24 hours, 9:00–20:00 Spain time (8:00–19:00 UK time).
Tu Ventana Costa Blanca works with estate agents from Alicante to Denia. We survey with your access, and the owner gets a written quote in English. Tell us about any sale deadline at the start, so the fitting date can be planned around it.
No. You or another key holder can open the property for the survey and the fitting. The owner deals with Eduardo in English from wherever they are.
The owner. The quote is written in English and lists the profile, glass, hardware and VAT for each window. If the owner wants you copied in, just say so.
Yes. Tell us the bookings when we agree the dates. The survey and the fitting dates are agreed in writing with you and the owner, around the bookings.