uPVC & aluminium windows in Castellón. Design online and get up to 3 quotes.
See a fair market price in Castellón in 2 minutes — before you talk to any seller. Design your window with Estimia and let vetted local installers compete for the job.
Climate & code · Castellón
What a window here actually has to do
Castellón, on the Costa del Azahar, has a warm, sunny Mediterranean climate. Solar-control glass is the priority against summer heat, and near the sea corrosion-resistant hardware is worthwhile.
Under the Spanish building code ( CTE DB-HE1), Castellón is climate zone B3 — mild winter, hot summer.
- Max window Uw
- ≤ 2.3 W/m²K
- Max air leakage
- ≤ 27 m³/h·m²
A new or replacement window in Castellón must not exceed Uw 2.3 W/m²K. Match the glazing to the climate — the right glazing .
Source: CTE DB-HE1, tables 3.1.1.a & 3.1.3.a; zonification Anejo B (2019).
Monthly weather, typical year
- Avg
- 17.6 °C
- Warmest
- Jul 29.4°
- Coldest
- Jan 5.9°
- Rain / yr
- 407 mm
Source: Open-Meteo / ERA5 reanalysis, 2014–2023 averages.
Skip the guesswork
We've already pre-configured the calculator for Castellón's climate. Just enter the dimensions.
We pre-set Uw ≤ 2.3 and the right glazing for Castellón, then let vetted installers compete. Get up to 3 quotes in 2 minutes.
uPVC windows for Castellón
A selection of uPVC profiles suited to Castellón's climate — from economy to premium.
WDS 7S (70 mm)
Veka Softline 82
Rehau Brillant-Design 70
Aluminium windows for Castellón
Thermal-break aluminium profiles for slim frames and large glazed openings.
Cortizo COR 60
Cortizo COR 70 Industrial
Schüco AWS 65
Schüco AWS 75.SI+
Frequently asked questions about windows in Castellón
How much does it cost to replace windows in Castellón?
Price depends mostly on size, material and opening type — not really on the province. Per the Estimia price index, built from real quotes by verified manufacturers, a standard installed PVC window is around €335 (incl. reduced VAT and fitting); thermal-break aluminium is around €640. For your exact size, use the calculator and get real quotes.
PVC or aluminium in Castellón?
In Castellón’s Mediterranean climate both materials work well. PVC gives the best insulation-for-money; thermal-break aluminium allows slimmer frames and large glazed openings, ideal for light and views. Either way, prioritise solar-control glass.
How do I get quotes from companies in Castellón?
Design your window in the Estimia calculator — dimensions, colour and finish — and you’ll get up to 3 offers from vetted companies working in Castellón. You compare price, lead time and reviews. It’s free and no-obligation, and many of our companies speak English.
Are there grants for new windows in Castellón?
There are usually tax deductions and energy-efficiency grants, both national and regional. Amounts and deadlines change every year, so confirm the current call before you commit. Estimia helps you estimate the saving and compare quotes.
Your fair window price in Castellón, in 2 minutes
Design your windows and get up to 3 quotes from vetted installers. Free and no-obligation.







