Traffic noise from the avenue
Apartments on Almirante Reis, Av. de Roma or Av. da República, with buses and traffic day and night. Asymmetric acoustic glass cuts perceived noise roughly in half.
Lisbon · CE EN 14351-1
PVC Windows in Lisbon
Buildings from the 1960s-80s, avenue noise, winter condensation. Old Lisbon windows almost always share the same cause, and the same fix.
✓ From €180/m²✓ Warranty included✓ Team in Lisbon
Quote for Lisbon
Reply within 1 business day.
CE marking · EN 14351-1 Uw compliant with climate zone Our own team, warranty included VekaRehauKömmerling
Why windows in Lisbon need replacing
Buildings from the 1960s-80s
Original aluminium or wood frames in Benfica, Alvalade or Olivais mean cold rooms, condensation on the glass every morning, and a high heating bill. PVC with double Low-E glazing fixes all three.
Mid-renovation or planning one
Buildings under renovation in Marvila, Beato, Arroios. It's the right moment to install good windows once and not touch this again for 25 years.
Apartment in a shared building (condomínio)
We replace windows without breaking the façade and while respecting the building's exterior appearance. We handle the building logistics and removal of the old frames.
Older building or historic area
In Graça, Alfama or Estrela the opening is rarely square and the building may have rules about the exterior. We measure every opening, propose frames that respect the facade, and handle the condominium request when needed.
Your estimate for Lisbon, in 1 minute
Choose the window type, glass and colour, and see the price without giving contact details. The final price is confirmed after a free measurement.
Reference prices in Lisbon
White PVC with double Low-E glazing, fitting and removal of the old frames included.
| Window type | Typical size | Installed, VAT incl. |
|---|---|---|
| Fixed window | 100×100 cm | €210–270 |
| Tilt-and-turn | 120×120 cm | €270–350 |
| Sliding window | 150×120 cm | €330–420 |
| Balcony door | 90×210 cm | €440–560 |
| Sliding door | 200×210 cm | €1,050–1,340 |
Figures from our calculator — adjust to your measurements for an exact estimate.
Cases like yours, by home type and by problem
By home type, window type and the problem left behind.
Condensation solved 
Sealing and security 
Noise cut out 
Anthracite aluminium 
Kitchen with a view 
Full project See the full portfolio →
Photos from our own completed jobs. We share more references from work near you during the on-site visit.
Typical situations in a home in Lisbon
Representative examples of the homes and problems we solve most often around here.
Water ran down the inside of the glass every winter morning, and there was black mould on the bedroom frame. The flat never warmed up properly.
PVC with double Low-E glazing. Condensation is gone, the flat heats up fast, and the winter bill came down.
Chat on WhatsAppTraffic noise from the avenue made it impossible to sleep or take video calls from home.
PVC with asymmetric acoustic glass. The traffic now stays outside, day and night.
Chat on WhatsAppWe were mid-renovation and wanted to do it properly once, without blowing the budget.
Anthracite-grey PVC, efficient and with an itemised quote. No surprises and no large upfront deposit.
Chat on WhatsAppThe lock on the old window was easy to force with a simple tool. It closed fine, but it wasn't actually holding.
Multi-point locking hardware with an RC2 security rating. Much harder to force, without changing how the window looks.
Chat on WhatsAppFrom quote to fitting, in four steps
1
Clear quote
Get an estimate with the calculator, no contact details needed, or request an itemised quote. Reply within one business day, no large deposit required.
2
On-site measurement
We visit you in Lisbon, measure every opening, and confirm the opening type, glass and Uw value. In older buildings the opening is rarely perfectly square.
3
Made-to-measure manufacturing
The frames are built to the exact measurements of your opening, with branded profile and the glass you chose. 2-4 weeks (special colours can take longer).
4
Fitting in one day
We install, seal, and remove the old frames. Usually done in a single day, with no building work or dust.
Where we install in Lisbon
BenficaAlvaladeArroiosPenha de FrançaCampo de OuriqueMarvilaLumiarOlivaisAreeiroAlcântaraEstrelaCampolideSão Domingos de BenficaResteloParque das NaçõesGraça
We also cover:
Our team works out of Lisbon — the office is in Penha de França — and covers the whole city and Greater Lisbon. We also cover Cascais, Sintra, Oeiras, Amadora and Loures, and Almada on the south bank of the river.
JanelaFix · Praça de Londres 12, 4.º Dto, 1000-189 Lisboa · Mon–Fri, 8am–8pm, by appointment · Open in Google Maps
Frequently asked questions about Lisbon
Practically not at all: a typical flat is fitted in one day, opening by opening — the openings are never all exposed at once. Made-to-measure manufacturing takes 2-4 weeks before that, but your old windows stay in place until fitting day.
Made-to-measure installation starts at around €180/m², with fitting and warranty included. A typical 2-bedroom flat (5 to 7 windows) usually comes to between €1,800 and €3,200, depending on the opening type and glass. Get an estimate with our calculator, no contact details required.
Yes. PVC seals better than aluminium, and with asymmetric acoustic glass, traffic from a busy avenue stops dominating the room. We give you the expected reduction in Rw (decibels) for your actual street, not a generic promise.
In many buildings, changing the exterior appearance of the façade requires notifying or getting approval from the condominium (the building's owners' association, a standard part of Portuguese apartment-building life). We recommend keeping the same colour and design as seen from outside to avoid issues, and we help with the technical side of that process.
Lisbon is in winter climate zone I1, where the legal requirement (Decree-Law 101-D/2020 and Portaria 138-I/2021) is a maximum Uw of 2.80 W/m²·°C. Our PVC solutions with double Low-E glazing comfortably beat that value.
Yes. We measure every opening individually (they're rarely perfectly square in older buildings), respect the exterior appearance, and install over the existing sub-frame whenever possible, without breaking into walls. In areas with heritage protection rules, we confirm what's allowed before starting.
Measuring is quick, and manufacturing takes 2 to 4 weeks (special colours like anthracite can take longer). Fitting is usually done in a single day per home. We remove the old frames and leave everything clean, so you won't be left without windows in the middle of winter.
Still unsure between materials? Compare PVC and aluminium or see our aluminium windows.
PVC window quote for Lisbon
Reply within one business day. No commitment and no large deposit.
✓ Warranty included✓ CE · EN 14351-1✓ Our own fitters