Inward opening 90°-180° · Maximum ventilation
The simplest, most robust and most effective opening: the sash pivots on its lateral hinges and opens 90° or 180° inwards. Maximum air flow, easy cleaning of both faces and uncomplicated hardware.
Aluplast, Cortizo and Salamander · Since 2010
Why casement still tops the list
Casement isn't "a lesser window" than tilt-and-turn - it's another tool for other uses. In industrial kitchens, laundries, offices and owner communities, simple full opening wins on maintenance, price and efficiency.
Unlike tilt-and-turn (which opens 90° maximum), casement windows with a special restraining arm reach 180°. The sash sits flush against the interior wall, allowing passage or exterior cleaning even with no balcony.
Some clients see this as an advantage: a mechanism that only opens or closes, with no intermediate catch to fail. Children can't leave the window ajar. More predictable for schools, nurseries or care homes.
3-point hardware vs 7-12 points on tilt-and-turn. Fewer moving parts = fewer faults long-term. In aggressive environments (industrial kitchen, salty coast) casement takes double the cycles.
When fully opened, the air flow is 100% of the opening. A tilt-and-turn in the intermediate position gives only 8-12%. Ideal for kitchens with fumes, bathrooms without an extractor or rooms you need to air quickly.
Opening to 180° lets you clean the outside of the glass from inside. On high floors or without a balcony it's the only safe way to clean the outside without hiring a window cleaner.
Casement supports wider sashes than tilt-and-turn (up to 1.2 m vs typical 0.9 m). This reduces the number of sashes and intermediate mullions, leaving more glazed surface.
Casement mechanics
The casement (also called "practicable" in technical language) is the oldest carpentry opening still in use. Its mechanics rely on 3 exact components
For full 180° opening (flat against the interior wall) we use the Maco Multi-Matic arm or Roto NX 180 - both certified for 20,000 cycles.
Real applications
It isn't a window for "any opening". Each typology has its ideal use. These are the 6 contexts where we recommend casement over tilt-and-turn or sliding in Costa Blanca and Murcia projects.
Massive ventilation during cooking, easy cleaning when grease builds up. Inward sash doesn't get in the way at the worktop.
High humidity needs quick total ventilation. Simple mechanics handle vapours and chemical agents (bleach).
Low unit cost, robustness for intensive use, easy for hired window cleaners.
Mass refurbishment (60-200 windows) with a tight budget. Fewer failure points for future maintenance.
Opening only controllable with a key (limited version). No intermediate position to confuse older users.
Occasional use doesn't justify the tilt-and-turn premium. Efficient solution without sacrificing quality.
Casement vs tilt-and-turn
The choice isn't about "quality" but about use. This table summarises the objective criteria we apply when recommending one over the other during the technical visit.
Rule of thumb: if the client will always open the window fully (airing 5-10 minutes) → casement. If they'll use continuous micro-ventilation (bedroom, heated living room) → tilt-and-turn.
Official systems
We work with official-manufacturer European profiles with CE marking and a 5-year warranty. Each tier matches a different client profile and budget.
German PVC profile with 5 chambers + 1.5 mm galvanised steel reinforcement. The standard choice for residential. Uf 1.3 W/m²K.
76 mm depth version, 6 chambers, additional central gasket. Better thermal and acoustic insulation than the 70. Main residence.
88-92 mm profile for Passivhaus. Triple gasket + suitable for triple glazing. For Class A+ or Passivhaus-certified homes.
Spanish aluminium with thermal break. Cor 60 for entry; Cor 70 RPT for residential with Uf 1.7 W/m²K. QUALIMARINE finish for seafront.
2026 pricing - closed projects
Indicative price VAT and installation included for a typical 1.0 × 1.2 m opening (standard kitchen/bathroom/bedroom size). Final figure depends on real measurements, hardware and glazing. Ranges from real 2025-2026 projects.
PVC entry
320
PVC 70 mm + Climalit 4/16/4 low-e + Roto NT 3-point hardware. Standard white colour.
PVC comfort
380
PVC 76 mm + central gasket + hidden hinges + 5-point hardware. Main residence.
Aluminium
480
Thermal-break aluminium + QUALIMARINE lacquering + 5-point hardware. Modern architectural aesthetics.
Add-ons: 180° opening arm + /sash, hidden hinges + /sash, pleated side mosquito screen /unit, compact integrated shutter. Closed quote, no surprises.
Verifiable technical data
Opening typologies
Casement supports several sash and opening combinations depending on the opening. These are the 6 most requested configurations in Costa Blanca and Murcia residential projects.
One sash opening inwards. Opening up to 1.2 m × 1.8 m. The most widespread setup in kitchen and bathroom.
Use: 70% of the casements we install.
One moving sash + one lateral or upper fixed sash. Opening up to 2.0 m wide while keeping a single opening point.
Use: small living room, large bedroom.
Two sashes that each open to a side without a central visible profile when closed (movable bead).
Use: eat-in kitchen, country dining room.
Two sashes: one casement for cleaning/massive ventilation + another tilt for daily micro-ventilation.
Use: large main bedroom.
The sash opens outwards. Useful where interior space is very limited. Requires a projecting arm.
Use: small bathroom, dressing room, stairwell.
Upper sash hinged at the top (hinged-guillotine opening) in tall openings above doors or main windows.
Use: hall, double-height stairwell.
Closed projects 2024-2026
Traditional restaurant in central Murcia. Kitchen carpentry renovation after a health inspection (permanent humidity and cleaning). Anodised champagne aluminium for the humid + hot environment.
Full renovation of a 110 m² flat in La Manga. We replaced non-thermal-break aluminium in the laundry and 3 bathrooms with white PVC with 180° opening for easy outside cleaning (5th floor without balcony).
Tax-advisory offices in Plaza Calvo Sotelo. Renovation of 14 non-thermal-break 1990s aluminium windows with modern aluminium and acoustic glazing (office next to heavy traffic). Monthly contracted window cleaners - 180° opening saves them balcony work.
Kitchen and bathroom renovation approved at owners' meeting. 60 homes, 2-3 casement windows per home (kitchen + 1-2 bathrooms). Manufacturing in 3 phases, 18% volume discount on the price list. Single project certificate for the administrator.
Step-by-step process
A casement is fitted in 2-3 hours per unit. That's why it's the fastest option for kitchen/bathroom refurbishments where the client stays in the home. These are the 6 exact steps we follow.
We measure the opening to the millimetre, assess the existing sub-frame, orientation and current closure type. We recommend casement vs tilt.
Time: 24-48 h after contact
PDF detailing each window: dimensions, profile, glazing, hardware, colour. No last-minute "extras". 30-day validity.
Time: 24-72 h after visit
We cut and assemble in our own Alicante workshop. Batch traceability and quality control before shipping.
Time: 8-12 working days
Careful removal without damaging tiles or trims. Collection and recycling at an authorised waste site.
Time: 30-45 min/window
Anchoring to the sub-frame with chemical screws every 40 cm. Millimetre levelling. Closed-cell Sika Boom sealing.
Time: 1.5-2 h/window
Fine adjustment of hinges and bolts, 5-cycle open/close test, site clean-up and handover of written 5-year warranty.
Time: 30 min/window
The team that fits your casement
We don't subcontract. The surveyor is in-house; the installer too. That matters because the casement looks simple but the fine hardware tuning (hinge and lock-bolt adjustment) is what makes the difference between 25 years of service life and 8.
Official training: Aluplast Academy, Cortizo Academy, Salamander Partner Network certified.
Surveyor
18 years measuring in Costa Blanca and Murcia. No measurement errors across 4,000+ projects.
Multilingual coordinator
ES/EN/RU. Coordinates work with foreign clients and building administrators.
Installation lead
Aluplast Academy + Cortizo certified. 4-person crew for large projects.
Warranty and regulations
Each casement we install leaves with a complete dossier: CE marking, Declaration of Performance (DoP) and written 5-year warranty. Without paperwork, a claim is one person's word against another's. With paperwork, the manufacturer backs you up.
Declaration of Performance per model and project with certified Uw, air and water tightness values. Mandatory in Spain since 2014.
Uw <2.2 W/m²K in climate zone B3 (Costa Blanca). Our casements reach 1.0-1.4 W/m²K - Class A or A+.
25,000 cycles guaranteed under EN 1191. If during the 10-year period the hardware loses adjustment or a bolt fails, replacement at no cost.
Version with tapered security bolts + P4A laminated glass: 3-5 minutes of resistance to professional tools.
Profiles with AENOR's N mark, manufactured to UNE EN 12608. Traceability by unique batch.
10 years on the profile + 5 years on hardware + 2 years on sealing/installation. Written, signed contract - not a leaflet. If there's a defect, we come back.
Casement frequently asked questions
Rule of thumb: if you'll always open the window fully (airing for 5-10 minutes in the morning) → casement. If you want constant ventilation with the window slightly ajar (winter bedroom, heated living room) → tilt-and-turn. For kitchens/bathrooms/laundries we almost always recommend casement. For main bedrooms and living rooms, tilt-and-turn.
We use the Maco Multi-Matic 180° arm or Roto NX 180. Both let the sash rotate fully and sit flush against the interior wall. Extra cost is per sash. Essential if you live on a high floor without a balcony and want to clean the outside of the glass from inside.
With a restraining arm (Maco/Roto) the sash holds in the position you set: 30°, 60°, 90° or 180°. Without an arm, the sash will move with the wind or under its own weight. We always recommend installing the arm (included in many mid-range systems), especially in Levante-prone areas.
Less than with tilt-and-turn (a child can get caught in the tilt position). But there's a risk of a child opening the window fully and falling. Solutions: key-locking handle ( /sash), opening limiter to 10 cm for safe micro-ventilation ( /sash), or P4A laminated safety glass - mandatory on floors ≥4th under Spanish Building Code DB-SUA.
Minimal: modern casements have frames of 60-70 mm (PVC) or 45-55 mm (aluminium), losing about 8-12% of glazed area vs a fixed window. In kitchens and bathrooms where ventilation is needed, the loss is entirely justifiable. If light is absolute priority, we consider hidden-sash designs (Aluplast AWS Block Frame) reducing visible frame to 35 mm.
Yes, two options: (1) compact-box shutter integrated in the monoblock (the window includes an upper box, no building works needed) - additional; (2) standalone external shutter on the existing opening (cheaper if there's already a box in the wall). Compatible with Somfy motorisation or manual tape.
For PVC casements: 8-12 working days of manufacturing + 2-3 hours of installation per window. Typical total: 2-3 weeks from signing. For 50+ window communities, manufacturing in 4-6 weeks staggered by blocks. For aluminium the lead time is slightly longer (12-15 days manufacturing).
Usually progressive sash drop: the weight of the glass + intensive use makes the upper hinge work harder and the sash "fall" 1-2 mm. Fix: eccentric hinge adjustment (10-minute job). Under the 5-year warranty we adjust it at no cost. If it happens often, it indicates undersized hardware - that's why we always use Roto NT calibrated to real weight.
If you're torn between types
It's not all casement. If your opening is large, you want constant ventilation or you're after maximum security, there are alternatives. These are the most common across Costa Blanca and Murcia.
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