Window clips are small pieces of plastic or metal that attach a window pane to the window frame. Over time, these clips can become loose or detached, causing drafts, rattles, and other issues. Fixing loose window clips is an easy DIY project that requires a few simple tools and some time and patience. In this article, we will walk through the step-by-step process for repairing window clips to properly re-secure the glass.
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What are window clips?
Window clips, also known as glazing beads or glazing clips, are small parts that hold a pane of glass in place within the window frame. They fit into a channel around the edge of the window and essentially clamp the glass down. Clips are typically made of plastic, metal, or vinyl. Older windows likely have metal clips, while newer windows often use plastic. The clips interlock with the window seal and frame to sandwich the glass securely.
Window clips serve several important functions:
- They hold the glass tightly in position and prevent it from slipping, rattling, or falling out.
- They form a seal between the glass and frame to block drafts.
- They allow for glass expansion and contraction due to temperature changes.
- They provide an ornamental finished look around the window.
Proper window clip function is important for insulation, weatherproofing, noise reduction, and security. Loose clips can jeopardize all of these. Replacing damaged clips or tightening existing ones is crucial for optimal window performance.
Signs you need new window clips
There are a few key signs that indicate your window clips need to be repaired or replaced:
- Rattling glass – If you can hear the glass pane moving or vibrating when you shake the window, the clips are too loose.
- Daylight around edges – Look carefully around the frame – if you see any daylight, the seal is broken.
- Drafts – Use your hand to check for cold air leaking around the edges, which means an imperfect seal.
- Cracks or damage – Inspect the clips themselves for any visible cracks, warping, rust, or other deterioration.
- Moisture buildup – Condensation between the glass and frame signals broken seals.
- Security issues – Very loose clips can potentially allow the glass to be pushed out from the exterior.
Even just one loose clip can undermine the performance and security of the entire window. So it’s important to replace or tighten any problematic clips as soon as possible.
Tools and materials needed
Fixing loose window clips doesn’t require any specialty tools. Here’s a list of what you’ll need:
- Screwdriver
- Putty knife
- Replacement window clips
- Glazier’s points (optional)
- Glazing compound (optional)
- Tape measure
- Work gloves
- Safety glasses
If you’re simply tightening existing clips, a screwdriver is the only tool you must have. But if clips are damaged or missing and need total replacement, you may also need putty knives, replacement clips, glazier’s points, and glazing compound.
Screwdriver
A screwdriver with interchangeable heads works best. You’ll need a Phillips head for most modern clips with crossed slots. But older windows may have slotted clips requiring a flat head screwdriver.
Putty knife
A sturdy putty knife helps pry off old clips without damaging the wood or vinyl frame. Opt for a tool with a rigid steel blade.
Replacement clips
If buying new clips, get the exact same style and size as the originals. Clips are not universal, so custom sizing is crucial. Bring one of your current clips to the hardware store to match it up. Purchase extras to have on hand for future repairs.
Glazier’s points
Glazier’s points are small metal triangles that help hold new glass panes in position temporarily. They may be needed if re-glazing, but not usually for just tightening clips.
Glazing compound
This putty-like sealant sticks panes to the frame. It may be useful for reglazing but generally isn’t needed for routine clip repair.
Tape measure
A tape measure helps ensure you get the right clip size and also lets you check for uniform placement.
Safety gear
Safety glasses protect your eyes from debris while working. Thick work gloves defend your hands from sharp edges on old clips.
Step-by-step instructions
Replacing window clips involves removing the old clips, installing new ones, and sealing them for optimal hold and weatherproofing. Here is the full process, step-by-step:
1. Remove the interior window trim
Most windows have interior trim or molding (often called the window jamb or stop) lining the frames. Carefully pry this off with a putty knife so you can access the clips. Save the pieces to reinstall later.
2. Take out the old clips
Using a screwdriver, remove the screws, nails, or other fasteners that connect each clip to the frame. Pry them out carefully with the putty knife. If needed, slice through old glazing compound with the knife.
3. Clean the channel
Vacuum and wipe out the now-exposed channel that held the clips. Remove any debris, old putty, or rust. The surface should be clean for optimal clip contact.
4. Install new clips
Place replacement clips in the channel at equal intervals around the pane. Tap them gently with a hammer to nestle them into position. Insert any necessary screws or glazier’s points to temporarily hold in place.
5. Secure the pane
Screw in the clips fully to tighten until flush or nearly flush with the pane. Apply glazing compound between the glass and frame if needed. The pane should be fully immobilized when pressed.
6. Check for gaps
Inspect the edges for any visible gaps between the clips and glass. If there are gaps, remove the clip and adjust so it sits flush against the pane all the way around.
7. Replace the trim
Reinstall the window jamb trim that was removed in step 1. Press firmly to reinforce the seal. Nail or screw it into place if needed.
8. Seal exterior gaps (optional)
For an extra weatherproof seal, apply caulk around the edges on the exterior side. Tool the caulk smooth.
9. Paint clips (optional)
New replacement clips will likely stand out against old painted frames. For aesthetic purposes, brush exterior paint over the new clips to match the color of the existing frame.
After following these steps, the window clips should be firmly secured. Give the glass a shake test – if there’s no rattling, the repair was successful! Properly fastened clips will prevent air leaks, stabilize the pane, and restore full function.
Tips for clip repair
Follow these tips for optimal results when undertaking window clip repairs:
- Check all the windows – repair multiple loose clips at once rather than doing one window at a time.
- Number the clips – remove a few at a time and number them to ensure proper sequence when reinstalling.
- Get the right size clips – measure accurately and get the same size as the originals.
- Use plastic clips on plastic frames – they’ll flex rather than bend like metal.
- Don’t overtighten – tighten firmly but not so much that you crack the glass.
- Apply glazing in cold weather – the compound seals better when applied in cooler temperatures.
- Look for clip covers – some clips have plastic covers that pop off rather than full clip removal.
Why window clips get loose
Understanding why window clips fail in the first place can help you undertake repairs that will last. Here are some of the most common reasons clips become detached or loose:
- Age – Clips weaken and degrade over years of weather and use.
- Temperature changes – Heat/cold cycles gradually loosen the grips on the glass.
- Moisture – Water seepage rusts metal clips and erodes glazing compounds.
- UV damage – Sunlight breaks down rubber gaskets and plastic components.
- Window operation – Frequent opening/closing loosens clips over time.
- Incorrect installation – Poor initial installation prevents a tight seal with the glass.
- Frame settling – Gradual house settling shifts window frame alignment.
Addressing issues like moisture intrusion, sun exposure, and age can help reduce the frequency of clip repairs needed. But sealing and replacing clips as needed is part of regular window maintenance.
When to call a professional
While clip repair is usually a DIY-friendly project, there are times you may want to call in a professional window repair technician:
- If there is broken or cracked glass – Removing broken panes safely takes experience.
- For upper-floor or tricky access windows – Hard-to-reach locations require special equipment.
- If the window frame is damaged – Repairing underlying frame issues may be needed.
- For historic/specialty windows – Unique windows may need specialized parts or methods.
- If repairs don’t solve the issue – If drafts persist after DIY efforts, an expert assessment could help.
- For whole window replacement – If the entire window unit is too degraded, replacement may be better than repairing clips.
DIY repairs can often suffice. But don’t hesitate to call in a pro if the issue is beyond your comfort level or expertise. For severe window deterioration, complete replacement may make more sense than repeated clip repairs.
Cost to repair window clips
The cost to repair window clips varies depending on factors like:
- Number of clips needing repair
- Accessibility of the window location
- Whether you DIY vs. hire a professional
- Type of clips and supplemental supplies/tools needed
For DIY repairs, you’ll just need to cover the cost of replacement clips, glazier’s points, glazing compound, and any tools needed. Here are some typical average costs:
| Item | Average Cost |
| Replacement window clips | $2 – $10 per clip |
| Glazier’s points | $5 – $10 per box |
| Glazing compound | $3 – $15 per tube |
| Putty knife | $5 – $15 |
| Screwdriver | $5 – $15 |
If hiring a professional, labor will incur additional hourly costs. Expect to pay:
- $80 – $150 per hour for window repair technicians
- A $50 – $100 minimum fee that covers small/simple repairs
- Higher rates for emergency repairs, evenings/weekends, or complex jobs
For a full window pane replacement with re-glazing, professional fees may be $300 – $800 depending on factors like window size, materials, and location. Overall, fixing a few loose clips here and there is very affordable. But eventually replacement may be better than perpetual repairs.
Preventing future clip issues
While window clips can inevitably fail over time, you can help reduce wear and deterioration. Here are tips to keep clips in good working order longer:
- Caulk around windows to protect from moisture.
- Use exterior storm windows to reduce exposure to elements.
- Ensure windows close fully to avoid rattling and vibrating.
- Check glazing compound annually and reseal as needed.
- Paint/stain window frames to prevent UV and water damage.
- Lubricate window tracks for smooth operation.
- Insulate windows fully to minimize temperature fluctuations.
- Clean tracks and weep holes so water drains properly.
- Avoid forcing stuck windows open to reduce strain on clips.
With attentive preventive care, window clip repairs can be less frequent. But expect to replace and tighten clips periodically as part of regular home maintenance.
Conclusion
Loose, broken window clips can lead to a host of problems from air leaks to rattling panes. But fixing faulty clips is usually a quick, easy, and affordable DIY project. With some basic tools and supplies, you can remove old clips and install new ones for a secure hold. Just be sure to get the right clip size and type. Follow installation steps properly to ensure the glass is immobilized without over-tightening. Addressing the issue promptly keeps your windows functioning optimally for comfort, efficiency, and security.