Frequently asked questions about window care in series 104

Introduction

Windows in series 104 apartment buildings are typical of Soviet-era panel housing and many renovated flats. Proper care increases the lifespan of PVC profiles, maintains energy efficiency, and prevents drafts and mold. This guide gives practical advice on regular maintenance, cleaning, adjustments, and quick checks you can do yourself.

Why regular maintenance matters

• Keeps windows airtight and energy-efficient.
• Prevents corrosion of hardware and wear of seals.
• Reduces condensation and the risk of mold.
• Extends the service life of insulating glass units and simplifies repairs.

Weekly and monthly tasks

• Wipe glass with a soft cloth and mild window cleaner.
• Remove dust from frames and window sills.
• Check drainage holes and clean them with a soft brush.
• Inspect visible seals for cracks or detachment.

Seasonal checks (spring/autumn)

• Lubricate moving hardware parts with silicone spray (avoid machine oils).
• Adjust sash compression: tighter in winter, lighter in summer.
• Check and replace seals if they are worn or brittle.
• Inspect exterior drip edges and joints for gaps.

How to clean the glazing and frame correctly

1. Use a soft cloth, warm water, and a neutral detergent.
2. Avoid abrasive powders, stiff brushes, and solvents — they damage the profile and seals.
3. For paint or sealant stains, use specialized cleaners and follow instructions carefully.
4. After washing, dry seals and apply a protective silicone treatment if available.

Seals and airtightness

• Replace seals when you see cracks, permanent drafts, or loss of elasticity.
• Remove old sealant and clean the surface before installing new seals.
• New seals must match the profile type; consult a professional if unsure.

Hardware adjustment and sash operation

• If a sash sticks, sags, or does not close properly, hinge and roller adjustment is needed.
• Most adjustments need a 4 mm hex key.
• Avoid forcing handles — this can break mechanisms.

Condensation and mold — prevention and remediation

• Causes: high indoor humidity, poor ventilation, compromised airtightness.
• Solutions: ventilate regularly (short but frequent airing), use kitchen and bathroom fans, maintain heating.
• Remove mold with antiseptic cleaners and eliminate the humidity source.

Small DIY repairs

• Handle replacement: usually 2–4 screws; follow the manufacturer’s instructions.
• Replacing seals: remove the old one, insert the new into the groove, trim to length.
• Lubrication: apply a small amount of silicone spray to guides and hinges.

When to call a specialist

• Cracks in the insulating glass unit, persistent leaks, or significant profile deformation.
• Lock or hardware failure you cannot safely adjust.
• Replacing the IGU or major resealing around the frame.

FAQ — Quick answers

Q: How often should I lubricate the hardware?

A: Twice a year (spring and autumn) is recommended. For heavy use, once more per year.

Q: Can I use a pressure washer on windows?

A: Avoid high-pressure water jets on seals and joints — they can damage airtightness.

Q: Why do my windows keep fogging up?

A: Check ventilation and indoor humidity, and inspect for failed seals. Sometimes increased airflow or a dehumidifier helps.

Q: How to know when to replace a seal?

A: Replace when the seal is brittle, cracked, compressed or when you feel persistent drafts.

Q: Can I replace an insulating glass unit myself?

A: IGU replacement requires skill and tools; it’s safer and more reliable to hire professionals.

Conclusion

Regular care of windows in series 104 means simple routines: cleaning, lubrication, seal checks, and timely adjustment. These steps save heating costs and extend service life. For complex issues or IGU replacement, contact a qualified service team.