How to Choose the Right Windows: Comparing SOF DESIGN's Three Tiers
Choosing new windows is one of the most significant investments you’ll make for your home. It’s not just a purchase of glass and plastic; it’s a decision that will define your thermal comfort, monthly energy bills, and peace of mind for the next 20 or 30 years.
At SOF DESIGN Plovdiv we believe transparency is the key to the right decision. That’s why we’ve created three clear product lines, each designed to meet specific needs and budgets. In this article, we’ll take a detailed look at our Essential, Standard, and Premium packages to help you make the most informed choice.
1. Essential Package: Reliability with Vivaplast
Our Essential package is designed for customers looking for the best possible value for money. Here we rely on the established Vivaplast 7500 profile.
Who is it for?
This package is the ideal solution for renovating apartments where the budget is a leading factor, but no compromise is allowed on durability. Vivaplast is a Bulgarian system developed according to leading technological requirements, which has proven itself in our local climate.
Technical Details
- Profile: 5-chamber, with a 70 mm installation depth.
- Insulation: Thermal transmittance coefficient Uf = 1.3 W/m²K. This is more than enough to feel a huge difference if you are replacing old wooden frames.
- Warranty: We offer a 5-year full warranty on the profile.
In the essential package, we usually recommend double glazing with low-emissivity glass (4 Seasons), providing a good balance between light and thermal protection. It’s a solid, practical solution that “just works.”
2. Standard Package: The Golden Mean with REHAU Euro-Design 70
Our Standard package represents the perfect balance between German engineering and an affordable investment. Here we use the REHAU Euro-Design 70 system.
Why REHAU?
REHAU is a world leader in polymer solutions. Euro-Design 70 is not just a profile; it’s a symbol of durability. REHAU surfaces are extremely smooth (HDF - High Definition Finishing), meaning dirt is harder to stick to them and cleaning is child’s play.
Who is it for?
If you’re looking for security for decades to come and want to optimize your heating costs in the long run, this is your package. It’s suitable for both new urban developments and houses.
Technical Details
- Insulation: Again, a 5-chamber profile with 70 mm width, but with optimized internal geometry for higher stability.
- Sound Insulation: Up to 45 dB, making it an excellent choice for buildings near busy boulevards.
- Warranty: 10-year warranty on the profile.
3. Premium Package: Uncompromising REHAU Synego
For those who accept no compromises with energy efficiency and luxury, we’ve created the Premium package with the REHAU Synego profile system. This is a product on a completely different level.
Technological Superiority
Synego offers an 80 mm installation depth and 7 chambers in the frame. This allows the system to reach insulation levels characteristic of so-called “Passive Houses.” With Synego, you literally “seal” your home against external influences.
Who is it for?
- For modern new houses with large window areas.
- For people who want minimal heating and cooling bills.
- For those seeking absolute silence in the city center.
Technical Details
- Thermal Insulation: An impressive Uf = 0.94 W/m²K.
- Glazing: Triple glazing is standard in this package.
- Warranty: 15-year warranty on the profile.
Technical Comparison at a Glance
| Feature | Essential (Vivaplast) | Standard (Euro-Design 70) | Premium (Synego) |
|---|---|---|---|
| Chambers | 5 Chambers | 5 Chambers | 7 Chambers |
| Depth | 70 mm | 70 mm | 80 mm |
| Thermal Insulation | 1.3 W/m²K | 1.3 W/m²K | 0.94 W/m²K |
| Sound Insulation | 32 dB | 45 dB | 47 dB |
| Warranty | 5 Years | 10 Years | 15 Years |
| Price Tier | Budget | Optimal | High-end |
How to Decide?
The choice often depends on the specific project. If you live in a quiet neighborhood and are looking for a fast and economical solution, the Essential Package will serve you faithfully.
However, if you’re investing in a “home for a lifetime” or your building is exposed to strong wind and noise, the Standard Package with REHAU is the most sensible investment. It significantly increases the market value of your property.
For those of you building your dream house or looking to forget about street traffic noise forever – the Premium Package with Synego is the solution that pays off not only financially but through incomparable home comfort.
Contact Us
Still undecided? At SOF DESIGN we offer a free consultation and survey in the Plovdiv area. Our teams will help you choose exactly what is best for your specific case.