PVC window installation in Santarém
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- Town
- Santarém
- District
- Santarém
- Position
- 39°14′ N · 8°41′ W
- Tilt and turn: opens to the side and tilts for fresh air.
What will it cost? Start with the sizes
Window type
Material
Colour
Sizes
Between 600 and 1800 mm
Between 300 and 2200 mm
A rough size is fine.
Extras
Window schedule
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About Santarém
Santarém is the capital of the Ribatejo and of the Santarém district. The city sits on a plateau, on the right bank of the Tagus river, and from the Portas do Sol you can see the floodplain and the river, one of the most celebrated views in the country, according to Wikipedia. The municipality covers 552 km², has 18 parishes and about 58,700 inhabitants (2021), of whom more than 30,000 live in the city.
The municipality borders Porto de Mós, Alcanena, Torres Novas, Abrantes, Chamusca, Alpiarça, Almeirim, Cartaxo, Azambuja and Rio Maior. It belongs to the Oeste e Vale do Tejo region and the Lezíria do Tejo sub-region, but the Ribatejo remains present in how people identify themselves.
The city is very old. It was contacted by Phoenicians, Greeks and Carthaginians, and the Romans, from 138 BC, made it Scalabis, the main trading post of the middle Tagus and an administrative centre of Lusitania. The current name comes from Saint Irene, a young woman whose legend tied her to the city and the river.
Santarém is called the “Capital of the Gothic”, but Wikipedia notes that only a glimpse of its heritage remains today. There are the Alcáçova and the walls, the Torre das Cabaças and churches such as Santa Maria de Marvila. It has a bullfighting tradition, with the Monumental Celestino Graça bullring. Being up high, looking over the river and the fields, usually means homes more exposed to sun and wind.
What the climate of Santarém asks of windows
According to English-language Wikipedia, Santarém has a Mediterranean climate (type Csa). Winters are mild, humid and rainy, with 15 to 16 °C by day and 6 to 7 °C at night, and about 15 days of frost a year. Summers are hot and dry, with 29 to 31 °C by day and 15 to 16 °C at night. The city hit a record of 46.4 °C on 7 August 2023, the highest in the country that year up to that day.
Santarém sits on a plateau, above the Tagus valley and the floodplain. The air is open and the sun hits many facades head on.
Winter is mild but rainy, with frost. Summer is hot and dry, with heat records.
- Plateau wind
The town sits on a plateau above the Tagus valley, open to the wind. In the streets by the walls and the Portas do Sol, wind comes from the river and the floodplain almost without obstacles. A continuous seal and a firm lock stop air getting in and whistling.
- Floodplain dust
On dry summer afternoons, the fields around raise dust, and the wind carries it to the windows. Clear tracks and smooth profiles make cleaning easier. On sliding windows, clean the tracks before summer ends.
- Winter rain and frost
Winters are damp and rainy, with frost on about 15 days a year. A frame that insulates avoids cold walls and glass, and the condensation droplets that show in the morning. The joint between window and wall must stand up to winter rain.
- Summer heat
Summers are hot and dry, and temperatures have reached 46.4 °C. Outside blinds and solar-control glass stop the heat before it gets in. On south and west facades, you notice the difference straight away on July and August afternoons.
| Condition | Level | Climate sheet |
|---|---|---|
| Summer | High | Hot and dry; heat records. |
| Winter | Medium | Mild by day, frost on some nights. |
| Rain | Medium | Damp, rainy winters. |
| Humidity | Medium | River and floodplain air in the low areas. |
| Wind | Medium | An open plateau. |
| Sun | High | Bright summers. |
Levels for comparison, not measurements.
SourcesWikipédia (pt): SantarémWikipedia (en): Santarém, Portugal
Climate zone of Santarém
Portugal's building energy rules put every place in a winter zone (I1 to I3) and a summer zone (V1 to V3). In Santarém the zone depends on the altitude of the building, so we show the ranges.
| Building altitude | Winter zone | Maximum Uw, W/(m²·°C) |
|---|---|---|
| up to 134 m | I1 | 2.80 |
| from 135 to 319 m | I2 | 2.40 |
| above 320 m | I3 | 2.20 |
Summer zone: V3: up to 256 m; V2: from 257 to 589 m; V1: above 590 m
Maximum solar factor of windows (gtot,máx): up to 256 m, V3: 0.10 in weak-inertia spaces and 0.50 in medium or strong inertia spaces; from 257 to 589 m, V2: 0.10 in weak-inertia spaces and 0.56 in medium or strong inertia spaces; above 590 m, V1: 0.15 in weak-inertia spaces and 0.56 in medium or strong inertia spaces. The value is for the opening with the solar protection fully activated. North-facing windows are exempt. What is the solar factor?
The maximum Uw applies to windows in housing in new and renovated buildings (Portaria n.º 138-I/2021), with exceptions, for example conservation works. The zone is calculated with the Manual SCE method, from the region (NUTS III) and the altitude, not by parish. Ask the designer or an SCE expert to confirm the one for your building. Checked on 19 October 2026. What is Uw?
Solutions table for Santarém
| Window | Glass | |||
|---|---|---|---|---|
| Local condition | PVC | Aluminium | Double glazing | Triple glazing |
Plateau wind | SuitableA good seal: the plateau is open to wind and dust. | SuitableCopes well. Check the seals and the lock. | SuitableChanges little here. The seal matters more. | Needs careHeavier: hardware and frame must be able to carry it. |
Floodplain dust | SuitableCopes with dry air without painting and cleans easily. | SuitableGood in dry climates. Clean dust out of the tracks now and then. | SuitableDry air and dust do not affect the glass. | SuitableSame as double glazing on this point. |
Winter rain and frost | SuitableInsulates well on cold winter nights. | Needs careWithout a thermal break, the frame gets cold on cold nights. | SuitableA good step up from single glass. | It dependsOnly worth it on cold or very exposed walls. |
Summer heat | It dependsLight profiles heat up less. Dark colours suffer in strong sun. | It dependsHeats up on August afternoons. A thermal break performs better. | It dependsIn strong heat, the solar control of the glass matters a lot. | It dependsInsulates, but without solar control the sun still comes in. |
- Suitable
- Needs care
- It depends
In Santarém, summer heat and winter frost both count. The installer confirms on site what suits your facade.
Homes in Santarém
The homes in the area change what is worth asking of the windows.
Historic centre
The historic area has many churches and old streets, by the walls and the Alcáçova. Old houses call for careful measuring and made-to-measure windows, and the council may have facade rules. Ask before ordering, especially near monuments.
Traditional houses
In the villages of the municipality there are single-storey farm houses with small windows, which lose heat in winter and get very hot in summer. Replacing windows changes comfort, but also look at the roof and the walls. Ask the installer to look at the whole house.
New apartments
Around the centre there are modern blocks, facing the floodplain or the town. South and west facades take the strong summer sun. For a very exposed living room, solar-control glass and outside blinds can do more than curtains.
How it works
Tell us what you need
Measure the opening on the drawing and confirm your town.
We pass your request to the right companies
We process your request and send it to the local companies that best fit your town and what you asked for.
The companies contact you with quotes
They get in touch and send you their quotes and offers. Compare them and choose, with no obligation.
We do not make or fit windows. We pass your request on and explain.
Towns near Santarém
Live in another municipality of the Ribatejo? These lie around Santarém. Write your town in the request.
Cannot find your area? Write it in the request.
Santarém in photos
From frost to 46-degree heat
Wikipedia records about 15 days of frost a year and a record of 46.4 °C on 7 August 2023. The same window must cope with cold January nights and very hot August afternoons.
So frame insulation matters as much as solar-control glass. PVC profiles cope well with both ends. What changes comfort is the glass, the outside blind and the fitting. Ask the installer to explain the choice for each orientation of your home.
A town up high, with a view of the Tagus
Santarém sits at the top of a plateau, and the Portas do Sol is a viewpoint over the floodplain and the river. People who live up there have the view, but also wind and sun head on.
In homes next to the viewpoint, windows facing the river take the afternoon sun and the wind. It is worth asking about solar-control glass, wind-resistant blinds and a firm lock. In sheltered streets of the historic centre, the essentials are respecting the design of the facade and sealing well.
General notes
On a viewpoint, the house is open to wind and sun. A continuous seal and solar-control glass are worth it on the facades facing the river. Ask for blinds that can take the wind.
PVC profiles are made for strong heat. What changes is comfort inside: outside blinds and solar-control glass hold the heat back. Light colours on the frame help stop the profile from getting too hot.
No. Good profiles and gaskets stand up to frost. The problem is cold glass inside, which creates droplets, and water that gets in and freezes in a badly made joint. Better glass, airing the house and a good joint solve it.
If you change the look of the facade, speak to the council first. Also ask whether there are rules for colour and material. Near monuments and in the wall area, rules tend to be tighter than in new districts.
Isolated houses take more wind and dust. Ask about a reinforced seal and firm locks. Tell the installer the house is in the countryside and whether it is lived in all year, because that changes the ventilation needed.
Yes. Write your locality in the request and we pass it on to installers in that area. We do not install, we only connect the person asking with the person who does the work. The floodplain is flat and open, so wind and dust are similar in the neighbouring municipalities.
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