Tu Ventana Costa Blanca makes and fits Kömmerling uPVC windows from Alicante to Denia, and explains every quote in English. The Benidorm office is new, but the trade behind it is not: our founder has over 30 years of it.
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, makes and fits Kömmerling uPVC windows with its own team for English-speaking homeowners in 14 Costa Blanca towns. Tu Ventana Madrid has 138 Google reviews; its founder, Eduardo, has over 30 years in the trade and answers in English on WhatsApp.
Both offices are the same company: TU VENTANA MADRID SL, NIF B06818421, incorporated in 2021. The Tu Ventana brand dates from 2018. You can check all of this on the About page, where every fact has its source.
Buying windows in another country, in another language, from 2,000 km away, is a reasonable thing to worry about. These are the three worries we hear most, and what we do about each one.
A quote that says only “PVC window” and gives one total cannot be compared, and does not tell you what glass you are paying for. Ours lists the profile, glass, hardware and VAT for every window, and Eduardo goes through it with you in English.
How window quotes workA guarantee is only worth something if the company that gave it still answers the phone. We publish our legal name, TU VENTANA MADRID SL, and our NIF, B06818421, so you can look us up in the Spanish companies register before you sign.
How to check a window companyA leak after an autumn storm feels worse when you are in another country. After-sales is in English, on WhatsApp, and your key holder gives us access. You do not need to fly over to get a hinge adjusted.
Replacing windows from abroadYou do not need to be in Spain at any point. Someone with your keys opens the door for the survey and the fitting, and you agree everything else with Eduardo in English.
Fill in the form with your town, the windows you want to replace and your mobile number. Eduardo replies on WhatsApp within 24 hours, and you can send him photos there.
We measure every opening at the property, with you or an authorised key holder: family, a neighbour, your property manager or your agent. Photos help us prepare, but they never replace the survey.
The quote lists the profile, glass, hardware and VAT for each window, with the final price. Eduardo goes through it with you in English, line by line, until it is clear.
We agree the dates with you and with whoever holds your keys. The key holder lets us in, and you do not need to travel.
When the job is finished, the windows are handed over to you or your key holder. Any later question or adjustment is handled in English on WhatsApp.
Eduardo has spent over 30 years measuring, choosing and fitting windows. In 2018 he started the Tu Ventana brand in Madrid, and in 2021 the company, TU VENTANA MADRID SL, was incorporated.
Tu Ventana Madrid grew one job at a time. Today it has 138 Google reviews and is a member of Kömmerling’s official network.
In 2026 the company opened an office in Benidorm, to serve this coast from here. The people, the method and the tax number are the same.
What Eduardo learned in Madrid still applies here. The brand of the profile rarely makes the difference. Measuring with care, choosing the right glass for each façade and sealing the opening properly do. Read the full story.
Jobs by our Madrid team, the same company as our Costa Blanca office: Kömmerling uPVC windows, doors and enclosures fitted by our own people.
Windows here face strong sun, salt air and sudden autumn storms, not long freezing winters. So we specify for heat, salt and water first.
A south- or west-facing living room can turn into a greenhouse by late afternoon. Solar control glass on those façades keeps the heat out, while north-facing windows can use standard low-E glass.
Solar control glass explaineduPVC does not corrode, but hinges, screws and locking points can. On the seafront we fit hardware with anti-corrosion treatment as standard, not as an extra.
uPVC windows for the coastMost leaks come from the joint between window and wall, not the window itself. Three layers of sealing keep out rain driven by autumn storms, while letting the joint breathe.
Windows leaking in autumn stormsAn old built-in roller shutter box lets heat, noise and cold air through. We replace it with an insulated one at the same time as the window, not later.
Kömmerling systems we fitFrost is rare on this stretch of coast. Good double glazing with the right solar control usually does more for your comfort than a third pane, for less money.
uPVC or aluminium?Each opening gets the system it needs, not the most expensive one. The full data for every system is on our Kömmerling windows page.
Our usual recommendation: 76 mm profile with a central seal.
Manufacturer image
uPVC inside, lacquered aluminium outside.
Manufacturer image
The lift and slide door to the terrace.
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The insulated roller shutter box.
Manufacturer imageA single “10-year guarantee” mixes up what the manufacturer covers and what the fitter covers. We list them separately, each with its term and the name of who gives it.
Tu Ventana (legal guarantee of conformity)
Spanish consumer law gives you a 3-year guarantee of conformity on the goods and their installation (art. 120 TRLGDCU). This is the guarantee that covers our work.
Kömmerling
Signed by Kömmerling, not by us.
Glass manufacturer
Signed by the glass manufacturer, not by us.
Hardware manufacturer
Signed by the hardware manufacturer, not by us.
The whole process in a minute and a half. You see how the profile is made, where the steel goes, how the corners are welded and how the glass goes in. This is what you cannot see once the window is on your wall.
We are not the cheapest. The same opening can be fitted for less. The difference is usually in the hardware, the steel reinforcement or the way the perimeter is sealed.
We won’t give a fixed price without seeing the windows. A price guessed over the phone almost always goes up later, and that is what annoys people most.
We won’t fit a generic profile under a trade name. If the quote names a brand, the window we fit is made by that brand.
We won’t promise you a grant. The public authority decides who gets one, not us.
Tu Ventana Costa Blanca is a good fit if you want Kömmerling uPVC windows on the Costa Blanca and prefer to deal with one person in English. It is not the right choice for everyone.
These reviews are from the Google listing of Tu Ventana Madrid (138 reviews). They are in Spanish; we show the original and a faithful translation. Our Benidorm listing is new, so we show the Madrid reviews labelled as Madrid, never as local ones.
“Very satisfied with the window installation. 100% professional. Congratulations to the whole team.”
DulceVidaDulce · ★★★★★Translated from Spanish · original on Google
“Muy satisfecho por la instalación de ventanas realizada. Profesionales al 100%. Felicitar a todo el equipo.”
“We are very happy with this company. We hired them to replace several windows in our house and it has been brilliant: you can hardly hear any noise from outside, there is a big difference in temperature and the service could not be better.”
Patri · ★★★★★Translated from Spanish · original on Google
“Estamos muy contentos con esta empresa. Contratamos el cambio de varias ventanas de nuestra casa y ha sido brutal: apenas se escucha ruido del exterior, mucha diferencia de temperatura y el trato inmejorable.”
“We have replaced all the windows in our home and the difference is clear: no noise, good thermal insulation and a very clean finish. We will definitely use them again.”
LORD APOS · ★★★★★Translated from Spanish · original on Google
“Hemos cambiado todas las ventanas de casa y la diferencia es notable: nada de ruido, buen aislamiento térmico y un acabado muy limpio. Repetiremos sin duda.”
We cover 14 towns from Alicante to Denia, from the Benidorm office. Each town has its own page, with local notes for owners who live abroad.
Send the form with your town and the windows you want to replace. Eduardo will reply in English on WhatsApp within 24 hours, 9:00–20:00 Spain time (8:00–19:00 UK time).
Eduardo answers in English on WhatsApp, 9:00–20:00 Spain time (8:00–19:00 UK time).
Yes. Eduardo answers in English on WhatsApp, 9:00–20:00 Spain time (8:00–19:00 UK time), and replies within 24 hours. He also goes through your written quote with you in English, line by line.
Yes. You do not need to be in Spain. A person with your keys lets us in for the survey and for the fitting. Everything else you agree with Eduardo in English. See the full process.
Photos help us prepare the visit, but the fixed price only comes after an in-person survey. Openings on this coast are rarely square, and a price based on photos tends to go up later.
Yes. The price we give is the final price with VAT included. The quote states the VAT rate applied: 21 % by default, and 10 % only when the legal conditions are met.
No. Our founder, Eduardo, has over 30 years in the trade, and the Tu Ventana brand dates from 2018. The company, TU VENTANA MADRID SL, was incorporated in 2021; the Benidorm office opened in 2026.
No. It is the same company as Tu Ventana Madrid, with the same legal name, TU VENTANA MADRID SL, and the same NIF, B06818421.
No. The 138 Google reviews belong to Tu Ventana Madrid. The Benidorm listing opened in 2026 and has only its first reviews, and we never present the Madrid ones as local. Read them here.
The whole job is covered by the 3-year legal guarantee of conformity under Spanish consumer law. On top of that, Kömmerling guarantees the profile for 10 years, and the glass and hardware makers set their own terms.
October to May is usually easiest. In July and August blocks are full, lifts are busy and some communities of owners do not allow works. Check your community’s rules before you choose dates.
14 towns from Alicante to Denia, including Benidorm, Albir, Altea, Calpe, Moraira and Javea. See every area.
