How to choose the perfect metal-plastic windows

Comfort, safety, and energy efficiency of the space largely depend on the windows. They ensure heat retention, reliable sound insulation, and operational safety.

Plastic (PVC) constructions are recognized by architects and experts as the optimal solution. To help you navigate the options and make an informed choice, we have prepared professional recommendations.

Key aspects when ordering new window constructions

Before placing an order, define your priorities: energy saving, safety, or design. You should also consider the type of property - house, apartment, or commercial space. This will affect the requirements for the main components of the window.

Window profile

The profile is the foundation and frame of the entire structure. It is responsible for:

• Stiffness and resistance to deformation.
• Reliable protection against external negative factors.
• Energy efficiency and sound insulation.
• Durability and impeccable aesthetic appearance.

Professional selection criteria: pay attention to the PVC formulation, wall thickness (preferably 2.5 mm and above), installation depth (from 50 mm), and the number of air chambers (4 or more). Compliance of the profile system with the standards accepted in European profile systems is an advantage. For large-scale glazing or specific architectural solutions, aluminum profiles may be considered.

Double-glazed unit

The double-glazed unit occupies the main area of the window and is the key element that provides:

• Light transmittance.
• Energy saving and maintenance of optimal microclimate (thermal insulation).
• Resistance to mechanical damage.

Professional selection criteria: evaluate the thickness of the double-glazed unit (from 32 mm), its chamber configuration (for example, double glazing for high efficiency), as well as the functionality of the glass (multifunctional, tinted, impact-resistant). The double-glazed unit should be airtight.

Fittings

Fittings ensure airtightness, ease of use, and safety. Among the most sought-after options are:

• Anti-burglary fittings: reliable protection against unwanted external intrusion, or break-in protection.
• “Child” lock: blocks the full opening of the window, increasing safety for children.
• Micro-ventilation system: provides access to fresh air without significantly cooling the room.

Additionally, there are many auxiliary mechanisms that significantly enhance daily comfort.

Additional Features

Modern technologies offer an expanded functionality of windows:

• Profile lamination: a wide selection of shades and textures for a perfect match with the facade or interior.
• Enhanced insulation: innovative technologies for maximum energy efficiency. This also includes solutions for passive houses.
• Non-standard shapes: manufacturing of structures of any sizes and shapes (arched, large panoramic).
• Accessories: use of blinds, roller shutters, canopies, sills, mosquito nets.

What determines the final cost of windows?

Energy-saving windows can be affordable, but they will never be too cheap. The final cost is formed based on the following parameters:

• Shape: standard rectangular or custom.
• Configuration: number of fixed, casement, or tilt-and-turn sashes.
• Opening mechanism: tilt-and-turn, sliding PVC windows, tilt windows made of PVC or folding.
• Sizes: standard or custom, including oversized structures.
• Camerality: the more chambers in the profile and double-glazing unit, the higher the thermal and sound insulation performance, and consequently, the higher the price.
• Technical sophistication: availability of enhanced energy efficiency, specialized fittings, additional options.
• Auxiliary equipment: canopies, sills, mosquito nets.

Important: some innovations do not significantly increase the final price but guarantee a substantial increase in comfort and savings in the long term.

What is the chambering of a window and why is it important?

Chambering is the number of air compartments (chambers) in the profile or double-glazed unit. The more chambers, the better the window retains heat and isolates noise. This is a direct indicator of energy efficiency.

What thickness of the profile is considered high quality?

For a quality profile, the recommended thickness of the outer wall of PVC is 2.5 mm and more. This ensures the necessary rigidity and resistance of the structure to deformation.

Is it worth overpaying for anti-burglary fittings?

If you live on the first or last floor, or in a private house - definitely yes. This is an investment in your safety and peace of mind. It significantly complicates unauthorized access from outside.

What is multifunctional glass?

This is glass that has a special coating applied to it (most often based on silver). In summer, it reflects solar heat outside, and in winter, it returns heat from radiators inside the room. Thus, it works for energy savings all year round.

Why choose plastic-metal constructions?

Plastic-metal constructions are the optimal choice due to their high energy efficiency, excellent sound insulation, durability, and resistance to external influences. They require no special maintenance, guarantee safety, and create a comfortable microclimate in the room.