Sliding PVC Windows

The best solution for large spaces with maximum natural light

Indicative prices

from 380

installed inc. VAT

Sliding PVC windows are the ideal choice when you need to open a large opening without invading the interior space. The sashes glide laterally on rails, allowing wide openings without interfering with furniture or curtains. At Instal Tancaments we install them with profiles from the best European brands.

Sliding PVC windows combine functionality and aesthetics. Thanks to modern sliding systems, they offer an airtight seal that guarantees excellent thermal and acoustic insulation. They are especially popular in living rooms, terraces and porches on the Costa Brava, where the indoor-outdoor connection is key.

Multi-chamber PVC profiles (5 or 6 chambers) provide superior insulation compared to traditional aluminium, reducing energy bills by up to 50%. Lift-and-slide systems allow heavy sashes to be moved with a single finger thanks to high-quality hardware.

Key features

Smooth sliding on stainless steel rails
Do not invade interior space when opened
Large dimensions: up to 6 metres wide
Multi-chamber profiles with 5 or 6 chambers
Double or triple glazing available
Airtight seal with EPDM gaskets

Advantages

  • No space needed to open — ideal for small rooms
  • Allow large dimensions and maximum natural light
  • Easy to operate even in large sizes (lift-and-slide systems)
  • Excellent thermal and acoustic insulation with multi-chamber PVC
  • Low maintenance — just clean with soap and water

Drawbacks

  • Only half the opening can be opened at once (with 2 sashes)
  • Slightly lower insulation than casement windows in basic models
  • Rails require periodic maintenance

Ideal for

  • Living rooms with terrace or garden access
  • Porches and glazed galleries
  • Rooms where interior space is limited
  • Second homes on the Costa Brava
  • Large openings with sea views

Indicative prices 2026

Indicative prices for Costa Brava and Girona. VAT included. Final price depends on dimensions, finishes and glazing.

Sliding PVC Windowsfrom 380€ — to 1400

Want a quote?

Request a free no-obligation technical visit. We advise you at your home.

Frequently asked questions

How much does a sliding PVC window cost?

A standard 2-sash sliding PVC window (200x210cm) costs between €380 and €1,400 installed including VAT in Girona. The price depends on the brand (Veka, Kömmerling, Ecoven Plus), glazing type and exact dimensions.

Which is better, sliding or casement window?

It depends on the use. Sliding is better for large openings and limited spaces where you cannot open inwards. Casement offers better insulation and weathertightness. For living rooms with a terrace, sliding is usually the best option.

Do sliding PVC windows insulate well from noise?

Yes, modern sliding PVC windows with double or triple glazing and EPDM gaskets reduce up to 38 dB of exterior noise. They don't match a casement window (42 dB), but the difference is minimal with the quality systems we install.

How long does it take to install sliding windows?

A standard sliding PVC window installation takes 3 to 5 hours. Lead time from order to installation is 3 to 5 weeks, depending on the brand and measurements.

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