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How to choose quality PVC windows: what you should look for

Choosing PVC windows for your home or business is an important decision. They not only influence the aesthetics of the space, but also thermal insulation, energy efficiency, safety and general comfort. In this article, we explain, in a simple way, how to choose quality PVC windows and what aspects you should pay special attention to before buying.

Why choose PVC windows?

PVC (polyvinyl chloride) windows have become one of the most popular options on the market thanks to their multiple advantages:

Good thermal and acoustic insulation
Long durability and weather resistance
Low maintenance
Excellent quality-price ratio
Possibility of customization in color and design

However, not all PVC windows are the same. Let's see what factors you should evaluate before making your purchase.

1. The PVC profile: quality and number of cameras

The profile is the main structure of the window. One of the most important aspects is the number of air chambers inside the profile.

What are cameras?

The air chambers act as a thermal and acoustic barrier. The more cameras, the better insulation.

3 cameras: basic, suitable for temperate climates
5 cameras: good insulation for most homes
6 or more cameras: ideal for cold climates or high energy efficiency needs

Make sure the profile is made of high-quality virgin PVC, not recycled.

2. The type of glass or glazing

Glass makes up more than 70% of a window's surface. That's why the type of glazing is key.

Common options:

Double glazing (climalit): two sheets of glass with air chamber between them
Triple glazing: for extreme climates or special needs
Low-E glass: improves energy efficiency
Argon glass: increased thermal insulation

Always look for glass with heat or solar treatment, especially if your home gets a lot of sun.

3. Thermal insulation and energy efficiency

A good PVC window must offer a low thermal transmittance coefficient (Uw).

What does Uw mean?

It's a measure of how much energy (heat) passes through the window. The lower the number, the better thermal insulation it offers.

Uw ≤ 1.4 W/m²K: very good efficiency
Uw between 1.5 and 1.8: standard performance
Uw > 2.0: not recommended today

Look for certified products with labels such as CE, UNE or European standards.

4. Hardware and opening system

The locking and hardware system influences safety, ventilation and comfort.

Common opening types:

Foldable (tilt-swing): allows you to open laterally or inwards to ventilate
Sliding (sliding): good for small spaces
Foldable or accordion type: for large areas
Fixed: when no opening is needed

Make sure that the hardware is made of stainless steel or anti-corrosion materials and that they have multiple locking points for added security.

5. Professional installation

It doesn't do much good to buy the best window if it's not installed properly. A poor installation causes leaks, heat loss and poor acoustic insulation.

Look for a company that offers:

Certified or experienced installers
Warranty for the installation
Correct sealing and use of high quality materials (foam, tapes, silicone)

6. Aesthetics and finishes

PVC is no longer just white. Today there are multiple design options:

Imitation wood colors (oak, walnut, etc.)
Matte, glossy or metallic finishes
Modern or classic design depending on the style of your house

The window must combine functionality and aesthetics, adapting to the design of your home.

7. Warranty and after-sales service

Don't forget to ask about the product and assembly warranty. A good company offers:

5-10 year warranty
Possibility of maintenance and adjustments
After-sales care for problems or defects

Final Tips for Choosing PVC Windows

Compare at least 2 or 3 budgets
Check reviews from other customers
Don't just look at the price: value the quality of the product
Always ask about energy efficiency and the included installation
Make sure your windows are certified by European standards

Choosing good PVC windows doesn't have to be complicated. If you pay attention to the key points - such as the profile, glazing, thermal insulation and installation - you will have a product that will improve the comfort of your home for many years.

Investing in quality PVC windows is a smart decision that translates into energy savings, greater comfort and better design. Choose wisely and enjoy your space.

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