8 reasons to contact us
and be confident in the result
Installation work takes 2-3 hours
How does the window installation process go from start to finish?

We will make an accurate calculation based on your dimensions and help you decide on the profile and configuration

We consider all features of the installation location: presence of skew or quarters, wall material, and other parameters that affect installation quality

You can sign the contract either on-site or upon arrival at our office

Installing windows won't take much time! Average installation speed – 1 — 1.5 hours.
Our plastic windows serve customers for decades
Author: Arman Ibraev, Technical Director of a translucent structures manufacturing company in Astana
WDS plastic windows: technical specifications for Astana's climate
Choosing translucent structures in the capital is always a serious engineering challenge, related to protecting the home from extreme steppe winds and maintaining a comfortable temperature during sharp changes from -40 °C in winter to +40 °C in summer. For the harsh climate of the northern region, it is critically important to use systems where the molecular density of the polymer and the thickness of the outer walls meet the highest energy efficiency standards. An investment in high-quality frames pays off only if there is reinforced steel reinforcement capable of withstanding the powerful wind loads characteristic of high-rise buildings on the left bank. Property owners in Astana, striving for durability and maximum reduction of heating operating costs, are increasingly choosing the time-tested WDS window profile.
Why PVC systems replaced wood
Modern polymer frames are airtight; they do not need to be painted or sealed for winter. Until the 2010-s, wooden frames were used in Astana, which dried out from the heat and let in drafts.
Aluminum products without thermal break became covered with ice from the inside in frost. Modern WDS plastic windows solve this problem: rigid PVC has low thermal conductivity. The material retains its shape under wind loads and does not yellow under direct sunlight.
Structure and energy efficiency of the profile
The air chambers inside the plastic work as a thermal barrier. The smooth surface of the frame does not absorb dust, which simplifies cleaning after dust storms.
Parameter | Series 6S | Series 7S | Series 8S |
Number of chambers | 6 | 6 | 6 |
Frame width | 70 mm | 70 mm | 82 mm |
Double-glazed window (max) | 40 mm | 40 mm | 52 mm |
Thermal resistance | 0,89 m²·K/W | 0,94 m²·K/W | 1,08 m²·K/W |
For Astana, the standard installation depth is from 70 mm. This thickness allows for the installation of a double-chamber double-glazed unit with argon. This influences what the final price for PVC windows VDS will be. The inert gas in the chambers reduces noise levels and protects against freezing at -40 °C.
Expert advice from Arman Ibraev: "Check the thickness of the steel inside the PVC. For Astana, a 1,5 mm contour is needed. If the metal is thinner, the structure will warp under wind pressure, and the sash will start to draft within a year."
What determines the cost and service life
The price of glazing depends on the opening dimensions, system series, glass unit formula, and fittings. Installed WDS plastic windows pay for themselves within 3–4 heating seasons by reducing costs for electric heaters.
Technical data of components:
- Seal: TPV elastomer, operates at temperatures up to -50 °C.
- Reinforcement: Galvanized steel of U-shaped section.
- Colors: 30 lamination options in wood or anthracite.
- Service life: The profile is designed for 40 years of operation.
For standard apartments, the price for basic WDS windows remains affordable due to localized production while maintaining European quality control standards.
Solutions for private houses
In cottages in Astana, the 8S series with three sealing contours is used, which was specially developed for zones with extreme wind loads. The additional middle contour creates a sealed air chamber, protecting the hardware from corrosion and freezing. Thanks to reinforced reinforcement, the structure maintains its geometry even with sharp temperature changes. The deep seating of the double-glazed unit shifts the dew point outward.
This engineering solution minimizes heat loss through the spacer frame, preventing cooling of the inner glass. As a result, the window surface remains warm even at critically low outdoor temperatures. This eliminates condensation and ice on the glass in frost. The optimal combination of profile width and number of air chambers provides the maximum level of energy saving. By technical parameters, these are the best WDS windows for harsh winters.
To achieve maximum comfort, experts recommend paying attention not only to the profile system but also to the glazing unit formula. Metal oxide coating allows retaining heat inside the home in winter and reflecting excess solar radiation in summer. In the premium segment, the price of branded WDS windows includes the use of multifunctional glass.
When choosing such structures, it is important to remember proper air exchange, as the high density of the seal blocks natural drafts. Installing climate valves will help avoid the 'greenhouse' effect without losing the moisture balance. Keep in mind that sealed frames require supply ventilation to maintain normal humidity indoors.
Checking profile authenticity
On the inner side of the rebate there is a laser marking with the shift number and date of manufacture. Original VDS windows Astana are delivered in protective film with the manufacturer's logo.
Comparison of components:
- Surface: Original — glossy, no pores; Budget analogue — matte plastic, absorbs dirt.
- Wall thickness: Original — 2,8 mm (Class A); Budget analog — 2,5 mm and below (Class B).
- Smell: Original — none; Budget alternative — chemical aroma when heated.
Ordering from an official representative guarantees that you will get high-quality VDS windows that do not require monthly adjustment and do not sag under the weight of the glass unit.
Facts about energy saving and statics
- Warm edge: Composite spacer inserts in the glass reduce the risk of edge freezing by 15%.
- Wind: With gusts of 25 m/s, the pressure on the structure in Astana reaches 40 kg per m2. Stiffening ribs maintain statics.
- Sun: Coating on glass reflects up to 60% of infrared radiation.
- Silence: 6 profile chambers reduce street noise by 45 dB.
- Ecology: The plastic composition contains no lead.
WDS translucent windows have a lowered frame height. This increases the glazing area and lets 7–10% more light into the room.
Installation rules for northern regions
The durability of the product depends on installation. Branded VDS plastic windows are installed using PSUL tapes and vapor barrier. This protects the foam from moisture and degradation under UV light.
Expert advice from Arman Ibraev: 'Installation without anchor plates will lead to deformation. The fastening step in Astana should be no more than 600 mm.'
The system's operation can be compared to a car mechanism: without precise adjustment and reliable fastenings, the structure will quickly fail.
Operation and service
For long hardware operation, clean it from dust and lubricate moving parts with silicone twice a year. In our region, the WDS profile has a warranty, but prevention eliminates seal wear.
This brand is a technical solution for the climate of Kazakhstan. Our company performs measurements, manufacturing, and installation with subsequent service maintenance.
honest reviews from our clients