UW- value 1.4
WDS 5S
Lowest price. A 5-chamber 60mm system for glazing cottages, balconies and utility spaces.
Market price (from)
€260
Energy rating
B
Profile chambers
5 chambers
Profile depth
60mm
Profile height
107mm
uPVC & aluminium windows in Castellón. Design online and get quotes from several local companies.
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.
B3CTE zone
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
HighLowRain
High
Low
Rain
- 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 quotes from several local companies.
Reference window prices in Castellón
What the most-requested replacements cost installed in Castellón — a fitted estimate including labour and reduced 10% IVA. Installed prices run about 3% above the national average because of local delivery distance and fitting rates.
| Item | Installed in Castellón est. incl. fitting + IVA |
|---|---|
| Standard window · 100 × 100 cmPVC tilt & turn — Rehau EURO 70 | ~€345 |
| Premium window · 120 × 120 cmPVC tilt & turn — Rehau SYNEGO | ~€540 |
| Balcony door · 90 × 210 cmPVC tilt & turn — Rehau SYNEGO | ~€595 |
* Indicative installed estimates for Castellón, not a binding quote. They build on the national factory price list plus typical local fitting and delivery — the real figure depends on your exact size, glass, colour and access. The full factory price list (every size and opening type) is national.
New EU energy rules
The EU energy rules and your windows in Castellón
The building code caps windows here at Uw ≤ 2.3 W/m²·K (CTE zone B3). There's no law banning your energy class — but Spain must renovate its worst-rated homes, and new windows are the cheapest lever. Reach class A/B and you could claim back up to €3,000. Illustrative compliant-window cost here: from €355 installed.
uPVC windows for Castellón
A selection of uPVC profiles suited to Castellón's climate — from economy to premium.
UW- value 1.2
WDS 7S (70 mm)
Beauty with no trade-offs. A 6-chamber system with Soft Line styling for sophisticated interiors.
Market price (from)
€400
Energy rating
A
Profile chambers
6 chambers
Profile depth
70mm
Profile height
113mm
UW- value 1.0
Veka Softline 82
The flagship of energy efficiency. A 7-chamber profile measuring 82 mm with three sealing circuits (MD) engineered to hold heat in to the greatest possible extent.
Market price (from)
€620
Energy Efficiency
A++
Profile Chambers
7 chambers
Profile Depth
82mm
Profile Height
124mm
UW- value 1.2
Rehau Brillant-Design 70
A premium 70 mm profile with a refined look, a smooth HDF surface and solid thermal insulation. HDF
Market price (from)
€420
Energy rating
A
Profile chambers
5 chambers
Profile depth
70mm
Profile height
116mm
Didn't find the right fit? We track dozens of window profiles.
View all profilesAluminium windows for Castellón
Thermal-break aluminium profiles for slim frames and large glazed openings.
UW- value ≤ 1.3
Cortizo COR 60
Contemporary aluminium with a thermal break. This flexible 60 mm-deep system marries the refined look of metal framing with serious strength and dependable thermal insulation.
Market price (from)
€580
Energy Efficiency
B / A
Material
Aluminium RPT
Profile Depth
60 mm
Insulation
Thermal Break 24 mm
UW- value ≤ 1.0
Cortizo COR 70 Industrial
A favourite of contemporary architecture. This 70 mm aluminium system with an upgraded thermal break is made for those chasing the greatest possible daylight and an uncompromisingly minimalist look.
Market price (from)
€780
Energy Efficiency
A / A+
Material
Aluminium RPT
Profile Depth
70 mm
Insulation
Thermal Bridge 35 mm
UW- value 1.4
Schüco AWS 65
The aluminium baseline. A versatile system with a 65 mm build depth for sleek, long-lasting results.
Market price (from)
€700
Energy Efficiency
B
Profile Type
Thermal Break
Profile Depth
65mm
Profile Height
104mm
UW- value 0.9
Schüco AWS 75.SI+
Super-insulating aluminium. A premium 75 mm system whose thermal breaks are foam-filled for top energy performance.
Market price (from)
€950
Energy Efficiency
A++
Profile Type
Thermal Break + Foam
Profile Depth
75mm
Profile Height
117mm
Didn't find the right fit? We track dozens of window profiles.
View all aluminium profilesReading for Castellón's climate
Curated for a hot, sunny climate: solar control, overheating and what the coast demands.
How to Stop Your Home Overheating in Summer: A Window and Glazing Guide
In most of Spain the summer problem is keeping heat out, not in. This guide explains why homes overheat through their windows, the g-value and shading that actually fix it, and how to cut your air-conditioning bill — plus how to compare verified window companies on Estimia.
Sun-Protection Technologies for Windows: Keep Your Home Cool Under the Spanish Sun
In Andalusia and along the coast, the real battle is keeping heat out, not in. This guide compares solar-control glass, the g-value that actually governs how much sun gets through, and every layer of shading from persianas and toldos to lamas, films and screens — with realistic costs and an orientation-by-orientation strategy for a cooler home and lower air-conditioning bills.
Choosing Windows for the Mediterranean Coast of Spain
The Mediterranean coast punishes windows differently from the rest of Spain — relentless sun, salt-laden air and humidity rather than hard frost. This guide explains which glazing, profiles and hardware actually survive on the Costa Blanca, Costa del Sol and the islands, and how to compare verified coastal-window companies on Estimia.
How Your Windows Affect Your Electricity Bill in Spain
Windows are where most homes leak heat in winter and gain it in summer — and in Spain, where air-conditioning runs hard from June to September, that shows up directly on your electricity bill. This guide explains Uw and g-value, compares single, double and triple glazing, gives realistic post-replacement savings and payback figures, and shows how grants can cut the upfront cost.
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 offers from several 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 quotes from several vetted companies. Free and no-obligation.