Common Sliding Window Problems and How to Fix Them

yshmichelle
Nov 7
3 min read

A sliding window is a reliable and practical choice for many Singapore homes — from HDB flats to condominiums and landed properties. However, like any frequently used home fixture, wear and tear over time can cause your sliding window to become difficult to open, noisy, or misaligned.

This guide highlights the most common sliding window problems and how you can fix or prevent them before they become major issues.

Sliding window safety features showing safety stopper and angle strip on aluminium window frame. Both components are required by HDB to prevent window panels from dislodging and ensure safe operation

1. Old Sliding Windows Without Safety Stopper or Angle Strip

Common issue: Many older HDB sliding windows installed before 2009 lack the required safety stoppers or aluminium angle strips. These components are essential under HDB safety regulations, as they prevent the glass panels from sliding out and falling.

Why this matters:If your home still has old sliding windows without these safety features, they are considered unsafe under current HDB guidelines. In such cases, you cannot sell your flat until the windows are rectified by an HDB-licensed contractor.

At Ho Ho, we can inspect and retrofit your existing sliding windows with the proper safety stoppers and angle strips that meet HDB requirements. To check on the pricing, please call us (96319288 or 67479019) or click here for more information,

2. Sliding Window Difficult to Open or Close

Common causes:

Dirt and debris clogging the window track
Damaged or worn-out rollers
Misalignment due to loose screws or uneven frame

How to fix it: Start by cleaning the window track using a small brush and vacuum to remove dust, sand, or insects. Apply a light spray of WD-40 or silicone lubricant on the rollers to improve movement, then wipe off any excess with a clean cloth.

If your sliding window has been in use for over 20 years and remains difficult to operate after cleaning and lubricating, it’s likely time for a replacement. Ho Ho offers new sliding windows at attractive factory prices. Returning customers enjoy an additional $50 discount with any purchase above $1,000 when you present your old invoice.

Prevention tip: Clean your sliding window tracks at least once a month and avoid using too much lubricant, as it can attract more dust and grime over time.

3. Rattling or Loose Sliding Window Panels

Common causes:

Loose screws or fittings around the frame
Shrinkage of rubber seals or weatherstripping

How to fix it: Tighten all visible screws. If the panel still shakes, the rubber seals might need replacing to create a snug fit. You can purchase rubber seals at any hardware shop.

Prevention tip: Have your HDB sliding window inspected every few years by an HDB-licensed contractor to ensure fittings are secure and safe.

4. Water Seepage During Heavy Rain

Common causes:

Blocked drainage (weep) holes along the window track
Damaged or missing cement seal between the window frame and the wall

How to fix it: Check the drainage holes at the bottom track and clear away any debris so rainwater can flow out smoothly. If the leak continues, the issue may be due to a worn or cracked cement seal around the frame. In that case, contact a professional installer to re-seal the sliding window properly to prevent further seepage.

Prevention tip: Inspect your HDB sliding window regularly — especially after heavy rain — to ensure the drainage holes are clear and the outer cement seal is intact.

5. Sliding Window Lock Not Working Properly

Common causes:

Damaged lock

How to fix it: Buy a new slidign window lock in any hardware shop and replace it.

Prevention tip:Make sure sliding window panel is aligned properly before locking.

6. Glass Condensation or Fogging

Common causes:

Temperature difference between indoors and outdoors

How to fix it: Wipe the glass with a dry microfiber cloth to remove moisture. For long-term prevention, consider double-glazed sliding windows to reduce condensation if it bothers you.

Final Thoughts On Sliding Window Common Problem

Your sliding window plays an important role in keeping your home bright, ventilated, and comfortable. With proper care and timely repairs, it can last for many years without problems.

If your window panels are difficult to open, leaking, or making noise, contact Ho Ho — Singapore’s trusted HDB-licensed window contractor since 1976.

We’ll inspect and replace your sliding window safely and efficiently. Visit our showroom at 194 Pandan Loop #07-07 Singapore 128383, or WhatsApp 96319288 / 67479019 for a free quote today.