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Questions and answers – Steco Line

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General information

At STECO LINE we offer top quality ALU and PVC joinery, made from profiles from renowned global manufacturers. Our range includes modern windows, doors and sliding systems that combine durability, energy efficiency and contemporary design, providing long-lasting value and aesthetic appeal to every home or business space.

Yes – we offer custom windows and doors, tailored to your exact dimensions and design preferences.
Our ALU and PVC joinery is fully customizable in size, style, color and additional options, ensuring a perfect fit into your home or business space, while maintaining energy efficiency, durability and a modern look.

To receive a quote for your project, you must send us the specification and other necessary information by email: info@stecoline.com. Our team will quickly contact you with a detailed proposal and a price adapted to your needs.

The average time of making carpentry is from 30 to 60 days, depending on the complexity of the project and the specific requirements of the client. We strive to ensure that each product is manufactured with maximum precision and quality, while respecting the agreed deadlines.

Yes, our products are energy efficient. We use high-quality ALU and PVC profiles with multi-chamber systems and thermal insulation glass that significantly reduce heat loss. Thus, we contribute to energy savings, reduced heating and cooling costs, as well as environmental protection.

Maintenance

Shortly after the installation of the elements, the first cleaning (up to 4 weeks) of the joinery should be carried out. It is recommended to clean ALU and PVC windows and doors at least two to four times a year, or more often if they are located in an area with a lot of dust, smog or salt (e.g. near the sea).
For longevity and to preserve the appearance, use mild detergents and a soft cloth, avoiding abrasives and strong chemicals that can damage the surface or gasket.
Regular cleaning of glass, frames and seals ensures not only an aesthetic appearance, but also a long service life of your joinery.

The best way to clean ALU and PVC frames is to use lukewarm water and mild detergents without abrasive particles.
Use a soft sponge or microfiber cloth to avoid scratches, and after washing, be sure to wipe the frames with a dry cloth to prevent water stains.
Avoid using harsh chemicals, solvents, or abrasive sponges, as they can damage the protective layer and paint.
By cleaning regularly at least 3–4 times a year, you maintain the aesthetics and longevity of your windows and doors.

Scrubbing agents, household cleaners, powdered detergents, as well as agents with aggressive ingredients, such as alcohol or gasoline, can damage the surface of the profile and the seals.

To extend the service life gasket on ALU and PVC windows and doors, regular maintenance is required:

  • Cleaning: At least twice a year, wipe the gaskets with a soft cloth soaked in lukewarm water and mild soap.

  • Lubrication: After cleansing, apply special silicone oil or spray to keep the rubber elastic and resistant to cracking.

  • Visual inspection: Periodically check that the gaskets are properly installed, without cracks or distortion.

  • Replacement: If you notice damage or loss of elasticity, replace the gaskets immediately to prevent heat loss and moisture penetration.

By regular maintenance of the gasket, you ensure better energy efficiency and longer lifespan your windows and doors.

Yes, lubrication of window and door slides you can do it yourself, and the process is simple and helps the mechanisms work smoothly and without any downtime.

Here's how to do it correctly:

  1. Clean the sliders. – Remove dust, dirt and debris using a vacuum cleaner or soft brush.

  2. Wash surfaces. – Wipe them with a cloth soaked in lukewarm water and a mild detergent, then dry well.

  3. Apply lubricant. - Use silicon spray or Teflon-based lubricant (motor oil is not recommended as it attracts dust).

  4. Test the glide – Open and close the window or door several times to distribute the lubricant evenly.

Regular lubrication, approx once or twice a year, extends the lifespan Aluminum and PVC joinery and ensures quiet and easy opening.

If the window or door is difficult to open, the problem may be caused by dirt, a worn mechanism, or incorrect hardware adjustment.

Here are the steps you need to take:

  1. Check the cleanliness of the sliders and fittings – Remove dust and dirt using a vacuum cleaner and a soft cloth.

  2. Lubricate moving parts. – Use silicone spray or Teflon-based lubricant for smoother movement.

  3. Inspect the gaskets – Damaged or deformed gaskets can create additional resistance.

  4. Check the setting – In ALU and PVC joinery, hinges and fittings can be adjusted to restore proper function.

  5. Call an expert – If cleaning and lubrication do not help, it is best to contact a service technician who will accurately diagnose and solve the problem.

💡 Advice: Regular maintenance ALU and PVC windows and doors prevents most difficult opening and closing problems.

In order to prevent condensation on the windows, ventilate the home several times a day, especially during the winter period.

Warranty

Ours ALU and PVC windows and doors they come with standard 5-year warranty on profiles and fittings, and 2 years on glass surfaces and installation.

Warranty details include:

Profiles – covers manufacturing defects, discoloration and deformations.

Fittings and mechanisms - cover faulty operation due to a manufacturing error.

Glass – covers manufacturing defects, blurring and condensation between layers.

Installation - ensures the quality of the performed works in accordance with the standards.

💡 Note: The warranty is valid with regular maintenance according to the manufacturer's instructions. For additional security, we also offer extended warranty at the buyers request.

The warranty covers:

Factory defects in the glass.

Occurrence of condensation and clouding between glass layers in thermal insulating glass.

The warranty does not cover:

Glass breakage caused by impact, unprofessional handling or external impact.

Damage caused by improper maintenance or cleaning with abrasives.

💡 Advice: We recommend installation safety laminated glass for additional protection and less risk of breakage.

  1. Regular cleaning – once every 3-6 months, clean the gaskets with a soft cloth and a mild soap solution to remove dust and dirt.

  2. Lubrication - apply silicone spray or glycerin at least once a year to keep the gasket elastic and prevent it from drying out.

  3. Visual inspection – check for cracks, deformations or damage; replace damaged parts if necessary.

  4. Avoid aggressive means - chemicals and abrasives can damage the rubber and shorten its life.

💡 Expert advice: Well-maintained gaskets can last up to 10 years, and regular maintenance improves insulation and reduces heating and cooling costs.

In most cases, the warranty on ALU and PVC windows and doors is valid only if the installation was carried out by an authorized or certified installer.
Self-installation can lead to:

Improper functioning of windows or doors

Reduced heat and sound insulation

Damage to profiles, glass or fittings

For this reason, manufacturers often state that the warranty ceases to be valid if the product is not installed in accordance with the technical instructions and by an authorized installer.

💡 Tip: In order to maintain the full warranty and optimal performance, professional installation by an authorized Steco Line partner is recommended.

Yes, in some cases guarantee on ALU and PVC windows and doors it can be transferred to the new owner of the property, but this depends on the terms of the manufacturer's warranty.
It is important to check:

  1. Does the manufacturer or supplier enable transfer of guarantee
  2. Necessary documents (invoice, warranty card, installation certificate)
  3. The deadline for reporting a change of ownership

💡 Advice: If you are planning to sell your house, get in touch Steco Line or the manufacturer to check the possibilities and terms of warranty transfer.

Custom Windows & Doors

Ours ALU and PVC windows and doors they offer a wide range customization option, to get a product that perfectly fits your home or business space:

Available options include:

Size and shape – standard or custom-made at your request.

Color and finish - selection of profile colors from the profile manufacturer's catalog.

Type of glass - energy-efficient, low-emission, safety laminated.

Fittings and mechanisms – different types of handles, locks, sliding and opening mechanisms.

Additional elements – blinds, mosquito nets, interior and exterior coverings.

💡 Advice: By using customization options, you can combine aesthetics, functionality and energy efficiency, ensuring the ideal solution for your space.

It's essential to feel comfortable and understood by your therapist. If you don't feel a connection, it's okay to discuss your concerns.

Yes, at Steco Line you can choose custom windows and doors to perfectly suit your home and business space.

Custom options include:

  1. Size – width, height and depth of the profile according to your needs
  2. Shape – rectangular, arches, bay windows or customized design
  3. Custom elements – sliding doors, fixed panels or combinations of windows and doors

💡 Advice: Tailor-made personalization enables maximum functionality, better aesthetics and optimal energy efficiency of yours ALU and PVC windows and doors.

Yes, at Steco Line you can choose additional functions for your ALU and PVC windows and doors, including:

  1. Energy efficient glass – reduces heat loss and helps save energy
  2. Soundproof glass – reduces outside noise and improves comfort
  3. Safety laminated glass – additional protection against burglary and breakage
  4. Decorative or tinted glass – for privacy and aesthetics

💡 Advice: The combination of these features allows your windows and doors to be functional, aesthetically appealing and long-lasting, adapted to your needs and lifestyle.