Frequently Asked Questions - Windows, Doors and Repairs
Answers to the most frequent questions about PVC windows, doors, installation, repairs and prices.
How much does a PVC double-glazed window cost?
The price of a PVC double-glazed window depends on several factors: window size, profile type (Salamander, Gealan, Kommerling), glass thickness and type, chosen PVC colour, and order volume. For an exact, personalised quote, contact us at 0742 121 893 or complete the contact form. Measurements and consultations are free!
What is the difference between PVC profiles (Salamander, Gealan, Kommerling)?
Each manufacturer offers different characteristics: Salamander BluEvolution - superior thermal insulation, modern design; Gealan - durability and energy performance; Kommerling - good quality-price ratio. All have RAL certification and warranty. Our consultation will help you choose the most suitable for your needs.
How is a double-glazed window installed?
Installing a double-glazed window requires: precise measurement, removal of the old glass, preparation of the opening, installation of the new frame, sealing with polyurethane foam, and fitting the hardware. Our team carries out the installation professionally. The process takes 1-2 hours per window, depending on complexity.
What is the optimal thermal insulation for a window?
Optimal thermal insulation depends on the regional climate. For Romania, we recommend: U coefficient between 1.2-1.5 W/m2K. Profiles with 5+ insulation chambers and 4-16-4 (or thicker) thermal glass offer excellent insulation and help save heating energy.
What does RAL certification mean?
RAL certification is a German quality mark that guarantees the PVC profile meets strict European standards: durability, sealing, thermal performance and colour stability. All our products have RAL certification, guaranteeing long-term quality.
How long does window installation take?
Installing a single window takes 1-2 hours, depending on size and complexity. For multiple windows, we are more efficient. Our team works quickly and cleanly, respecting professional standards. After installation, we clean the area completely and show you how to use the new windows properly.
Is window installation free?
Yes! At Extraplast, installation of PVC windows and doors is FREE. We have our own certified installation team, which ensures quality and accountability for every project. There are no hidden costs.
What warranty is offered on windows?
We offer a 5-year warranty on all our products (windows, doors, shading systems). The warranty covers manufacturing defects and material deficiencies. Repairs are free during the warranty period (material + labour).
How does condensation form on double-glazed glass and how is it repaired?
Condensation forms when indoor humidity exceeds 50-60% and cold outdoor air meets the warmer glass. Common causes: poor ventilation, slow drying. Solution: good ventilation, dehumidifier, and possibly glass replacement if insulation has deteriorated. Contact us for a free diagnosis.
Can old double-glazed windows be repaired?
Yes! If the glass has deteriorated (loss of seal, permanent condensation, breakage), we can replace just the glass without changing the frame. The cost is significantly less than complete replacement. We are specialists in double-glazing repairs - contact us for a quote.
What is the difference between PVC and aluminium windows?
PVC: better thermal insulation, more accessible price, requires little maintenance. Aluminium: more modern design, greater durability, higher price. For apartments: PVC. For houses/offices with premium aesthetics: aluminium. Our consultation will help you choose.
How to adjust a squeaky window?
A squeaky window is adjusted by adjusting the hinges and seals. This does not require complete disassembly. Our team can adjust for free during the warranty period, or for a current fee after warranty. Contact us for a visit.
Are instalment payments accepted?
Yes, we can arrange instalment payments with our financial partner. Details depend on the order value. Contact us for available options. No hidden interest - everything transparent and clear.
Do you repair any brand of window?
Yes! Our specialists can repair windows and doors of any brand (Salamander, Gealan, Kommerling, etc.). Repairs include: glass replacement, lock replacement, adjustment, seal replacement. Contact us with a photo/description and we will offer a free diagnosis.
What is the cost of repairing a double-glazed window?
The cost of a double-glazing repair depends on: window size, type of repair (complete glass replacement vs. minor repair), and accessibility. For an exact quote, contact us with the window dimensions. Visit and diagnosis are free!