Terms of use

By using JanelaCerta.pt, you accept these terms. They are short and written in plain words.

Last updated: 7 October 2026.

Who runs the site

JanelaCerta.pt is run by Dynamic Flower Unipessoal LDA., Rua Largo Alberto Sampaio 3, 2795-007 Linda-a-Velha, Portugal. Contact: [email protected].

What this site is

It is an information website about windows. We explain topics such as materials, glass, insulation and installation, and we offer a calculator to help you prepare your request.

We do not make, sell or install windows. If you ask us to, we pass your request on to installers or manufacturers in your area. The supply or installation contract is made directly between you and that company, not with us.

Information and indicative figures

The texts, the reference figures and the calculator results are informative and indicative. They are not an offer, a quote or a price guarantee. Real prices depend on the product, the measurements, the job, the region and the installer. Always ask for a written quote.

We try to keep the information correct and up to date, but we do not guarantee it is free of errors. For important decisions, check with a professional and with official sources.

Free service

Using the site and passing your request on are free for you. To learn how we handle your data, read the Privacy policy.

Proper use

You agree to give true details in the forms and not to use the site for illegal purposes, to send fake or mass requests, or to try to harm how it works.

Rights in the content

The texts, images and drawings on the site belong to Dynamic Flower Unipessoal LDA. or their respective authors. You may quote short excerpts with credit and a link to the site. You may not copy the site or substantial parts of it without permission.

Links to other sites

The site may link to third-party sites (for example, official bodies). We do not control those sites and are not responsible for their content.

Limitation of liability

To the extent the law allows, we are not responsible for losses resulting from use of the information on the site, or for agreements, work or prices agreed between you and the companies we passed your request on to. This does not limit any rights the law gives consumers.

Governing law and disputes

Portuguese law applies. Consumers may also use the Electronic Complaints Book and alternative consumer dispute resolution bodies.

Changes

We may change these terms. The date of the last update is always at the top.