REHAU Windows in Odesa: A Client Review 5 Years After Installation
Five years is a sufficient period for windows to show what they really are, and not what they are described as in advertising. Exactly this much time has passed since the glazing of the house in question. A client of the OknoDom company left a detailed review on Google: stained glass glazing, 6 mm thick glass, windowsills with anti-vandal coating, a repeated visit by installers after the renovation — and the result after five years of use. Let’s analyze this case in detail and at the same time find out what is actually behind the REHAU profile, which is chosen in almost every second order in Odesa.
What was installed and why this is not an ordinary order
Stained glass glazing was performed in the house — a construction where the glass holds not only the light, but also part of the load on the structure. For such projects, the contractor used 6 mm thick glass: this is not a whim, but a requirement, which will be discussed below. Double-glazed windows were made with multifunctional energy-saving glass, and a durable anti-vandal coating was applied to the windowsills. After the completion of the repair works, the installers came again: they cleaned the windows from construction dust, checked the operation of the sashes, and adjusted the hardware.
Three details in one order — and all three are important for those who plan glazing consciously, and are not just looking for “cheaper windows”.
Multifunctional energy-saving glass: what stands behind it
“Energy-saving” glass is glass with a low-emissivity (i- or k-) coating: the thinnest metal oxide layer reflects part of the heat radiation back into the room in winter and at the same time reduces overheating from the sun in summer. It is called “multifunctional” when one coating solves several tasks at once: it retains heat, reduces heating, and practically does not distort natural light — unlike mirror tints, which are visible to the naked eye.
In the basic configuration at OknoDom, double-glazed windows are assembled according to the 24/32 mm formula with an energy-saving contour — this applies to both standard windows and more complex structures like stained glass, where such glass is taken not “for show”, but because the difference in heat loss during the heating season is felt on the bills.
Why is the glass made thicker in stained glass structures?
A 60×120 cm window and a stained glass wall two or three meters high are structures with a completely different load. The larger the area of the glass pane, the stronger the wind load and its own weight act on it. 4 mm thick glass, standard for small windows, is simply not designed for stained glass — the risk of deformation and destruction increases along with the area. Therefore, for such projects, glass from 6 mm is included: a safety margin that is not visible to the eye, but which directly affects the safety of the structure after 5, 10, and 20 years.
REHAU profile: what hides behind the phrase “German quality”
REHAU is one of the profile brands around which the most marketing clichés and the least specifics have formed. Let’s figure it out in numbers.
REHAU lineup in the OknoDom catalog
| Profile | Installation depth | Number of chambers | Sound insulation | Thermal conductivity | Max. double-glazed window |
| Euro-Design 60 | 60 mm | 3 chambers (2.7 mm walls) | up to 41 dB | 1.6 W/m²·K | 33 mm (3 glasses) |
| Euro-Design 70 | 70 mm | 5 chambers (2.8 mm walls) | up to 45 dB | 1.3 W/m²·K | 41 mm (3 glasses) |
| Synego | 80 mm | 7 chambers / HDF reinforcement | up to 46 dB | 0.94 W/m²·K | 51 mm (3 glasses) |
| Synego Slide (sliding) | frame 156 mm / sash 80 mm | tilt-and-slide mechanism | up to 43 dB | 1.3 W/m²·K | 51 mm |
| Artevo | 80 mm, RAU-FIPRO X composite | thin visible profile | up to 47 dB | 0.82 W/m²·K | 56 mm |
| Euro 70 Kompakt | 70 mm | 5 chambers | up to 41 dB | 1.3 W/m²·K | 40 mm |
| Brilliant | 70 mm, glossy HDF coating | — | up to 45 dB | 1.2 W/m²·K | 41 mm |
Data is from the catalog of REHAU profile, Germany, see current models and photos there.
How to read these numbers
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Number of chambers — is the number of air cavities inside the profile: the more of them, the harder it is for heat to “break through” the frame.
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Thermal conductivity index (W/m²·K) — is an inverse value: the lower it is, the warmer the window. The difference between Euro-Design 70 (1.3 W/m²·K) and Synego (0.94 W/m²·K) is exactly that “25% warmer” declared by the manufacturer, which is written in the description of the line: 0.94 is indeed about a quarter less than 1.3.
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For sound insulation, the logic is reversed — the higher the decibels in the specification, the more noise the profile is able to cut off.
The Artevo material is a separate story: instead of pure PVC, here is the RAU-FIPRO X composite, due to which the visible width of the frame is reduced, and the light transmission of the window has increased without loss of strength. The full lineup and current prices are on the REHAU profile page at OknoDom (also available in Russian).
Anti-vandal windowsills — a detail rarely noticed in reviews
The windowsill is the most loaded horizontal surface near the window: flowers are placed on it, people lean on it, sometimes tools are dropped during repairs nearby. The anti-vandal coating protects the surface from scratches, chips, and fading in the sun — that is, it solves not an aesthetic, but a very practical task: the windowsill looks exactly the same after five years, and not only in the photo immediately after installation.
Why the installers returned after the renovation — and what this indicates
The review separately notes: after the completion of the repair, the team arrived again — cleaned the windows from construction dust, checked the operation of the sashes, and adjusted the hardware. This is not what every contractor does by default: many companies consider their work complete on the day of installation. At OknoDom, the products and installation are covered by a warranty of up to 12 years, and a return visit after the renovation is exactly an example of how this warranty works, not just on paper.
5 years later: what practice shows, not an advertising brochure
Based on the results of five years of operation, there are three facts in the review: the house is warm, the sashes open and close without complaints, no serious problems arose. The author of the review notes that she has been satisfied with the quality for years — this is separately highlighted in the text, and this is a key detail: it is one thing to praise windows on the day of installation, and quite another to confirm it years later.
For context: the company has been on the market since 2009, has installed more than 120,000 windows and serves more than 10,000 clients annually — these are the numbers worth checking against when choosing a contractor, and not just the profile.
How much do REHAU windows cost in Odesa?
Estimated prices for the basic configuration (60 mm profile, 4 chambers, 24/32 mm energy-saving double-glazed window, AXOR hardware):
| Window type | Size | Price |
| Single-sash | 600×1200 mm (0.72 m²) | from 3,600 UAH |
| Double-sash | 1330×1410 mm (1.87 m²) | from 6,050 UAH |
| Triple-sash | 1760×1420 mm (2.50 m²) | from 7,300 UAH |
| Balcony block | 1440×2200 mm (2.05 m²) | from 11,200 UAH |
The price changes depending on the profile series (Euro 60, Euro 70, Synego, Artevo), the type of double-glazed window, and the complexity of installation — for example, stained glass or windows with 6 mm glass are always calculated individually. The exact cost for a specific project is provided by a free measurement.
How to order REHAU windows at OknoDom
The OknoDom company has been working in Odesa since 2009, gives a warranty of up to 12 years for the product and installation, performs a free measurement, and takes care of delivery and cleaning after installation. The catalog of all profile systems, including REHAU, VEKA, KBE, and others, is on the official website of the company
Frequently asked questions
How long do REHAU windows last?
The manufacturer declares a service life for PVC systems of 40–50 years, provided proper installation and basic maintenance. The review analyzed in this article confirms that already at the five-year mark the system works without complaints — this is an early, but indicative stage.
How does Synego differ from Euro-Design 70?
Synego has 7 chambers and HDF reinforcement versus 5 chambers in Euro-Design 70, and in terms of thermal conductivity, the difference is noticeable: 0.94 W/m²·K versus 1.3 W/m²·K, meaning Synego is about a quarter warmer with a comparable frame depth.
Do REHAU windows need to be serviced after installation?
Yes, especially after a renovation near the windows: construction dust settles in the hardware mechanism, and without adjustment, the sashes begin to sag or close loosely over time. That is why the return visit of the craftsmen, as in the analyzed review, is not a courtesy, but a normal practice.
How much do REHAU windows cost in Odesa?
The basic configuration starts from 3,600 UAH for a single-sash window of 0.72 m². The final price depends on the profile series, the type of double-glazed window, and the complexity of the installation.
What warranty applies to REHAU windows at OknoDom?
Up to 12 years for the product and installation.
Reference
Call for a free consultation and to call a measurer:
📞 0 800 33 10 30 (toll-free in Ukraine)
📞 096 533 34 30
📞 080 033 29 69
💬 097 033 05 65 (Viber)
Our offices in Odesa
Main office and showroom:
📍 Zheliabova St., 4a (Peresypskyi District)
Mon–Fri: 9:00–18:00 | Sat: 10:00–15:00
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Office 2:
📍 Henerala Petrova St., 31
Mon–Fri: 9:00–18:00
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Office 3:
📍 Akademika Viliamsa St., 58a
Mon–Fri: 9:00–18:00
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Office 4:
📍 Liustdorfska Road, 140a
Mon–Fri: 9:00–18:00
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Measurer departure is free throughout Odesa and Odesa region. Service areas: Odesa, Mykolaiv, Kherson and the region.
