Yes, it is often possible for a handy homeowner to replace a broken or missing window crank handle. Window crank handles are the hardware that allow you to open and close casement or awning style windows by turning a crank. Over time, these can break, get lost, become loose or stripped. Replacing them is usually a relatively straightforward DIY project.
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When Do Window Crank Handles Need Replacement?
There are a few common signs that indicate it’s time to replace your window crank handles:
- The handle is completely missing. This may happen if the handle gets damaged and falls off or someone removes it. A missing handle will prevent you from opening or closing the window properly.
- The handle is loose. If the handle wiggles and feels like it might fall off when you turn it, this indicates a problem with the fastening mechanism. The hardware likely needs to be tightened or replaced.
- The handle is stripped. Sometimes the inner mechanism gets worn down over time, causing the handle to spin freely without engaging the window. A stripped handle needs replacement.
- The handle is cracked or broken. If the handle itself is damaged or split, replacement is necessary.
- The window is stuck. If your window simply won’t budge no matter how hard you turn the handle, the inner window hardware is likely broken and the crank will need to be replaced.
Replacing a window crank handle as soon as you notice signs of damage can help prevent bigger problems down the road. Waiting too long could lead to broken window hardware or glass, especially if someone forces a stuck window open.
How To Replace a Window Crank Handle
Replacing a window crank handle is a relatively simple project for most DIYers. Here are the basic steps:
Materials Needed
- Replacement window crank handle. Make sure to get the correct style and size for your window.
- Screwdriver
- Drill with assorted drill bits (for handles that require new screw holes)
- Metal file (for handles that require modifications to fit)
Remove the Old Crank Handle
Start by removing the interior handle trim cover, if there is one. This may pop off or require light prying with a screwdriver.
Then, use a screwdriver to remove the screw(s) holding the old handle in place. Some handles may also have interior nuts that will need to be loosened. Set the old handle aside.
Modify the Replacement If Needed
Test fit the new handle in the crank arm opening. You may need to file down edges or widen screw holes slightly to get proper fit. Go slowly and carefully to avoid over-filing.
Install the New Handle
Once the new handle fits correctly in the crank arm:
- Replace any washers or interior nuts
- Insert and tighten handle screw(s)
- Replace interior handle trim
Check that the handle operates the window properly without being too loose. Add another washer if needed for a tighter fit.
Troubleshooting Tricky Crank Handle Replacements
While most window crank replacements go smoothly, issues can come up that complicate the process. Here are a few potential problems and solutions:
Handle Doesn’t Fit Into Crank Arm
If the replacement handle seems too large or small to fit properly into the crank arm opening, you likely have the wrong replacement part. Carefully measure the original opening and arm length or take the old handle to the hardware store to find an exact match.
Handle is Too Loose
Sometimes even after tightening the handle attachment screw, the handle will still be loose and wiggle. This is often fixed by adding an extra interior washer to take up space before tightening the screw again.
New Holes Needed in Replacement Handle
In rare cases, pre-drilled screw holes on a replacement handle won’t line up properly with the crank arm holes. This can usually be remedied by carefully drilling new screw holes in the replacement handle that do align. Go slowly to avoid cracking the handle.
Can’t Remove Old Screws or Nuts
Rusty or paint-stuck window hardware screws can be very difficult to loosen. Avoid stripping screw heads by using properly sized screwdrivers. Impact drivers can help provide extra turning torque. Penetrating oil may help free up rusted parts.
Cutting or drilling out stuck screws is a last resort if you can’t loosen them with tools. Replace any screws or nuts you have to destroy.
Window Still Won’t Open After Replacing Handle
If your window is stuck shut and replacing the crank doesn’t fix it, there is likely another underlying issue. Window hardware problems that may require further repair include:
- Broken sash gears or housing
- Off-track balances
- Swollen wood window frames
- Paint buildup sealing windows shut
You may need to do some additional troubleshooting, or call a window repair technician for help. Avoid forcing windows open once the crank is repaired.
When To Call A Professional For Window Crank Replacement
While DIY window crank replacement is straightforward for most, there are some situations where it pays to call in a professional:
- The window frame or sash is damaged and needs repair
- You need to replace more than just the crank handle itself
- The window is in a hard-to-reach or dangerous location
- You don’t feel comfortable doing the repairs yourself
A trained window repair technician has the skills and tools to assess underlying issues and fix hardware problems beyond just the crank handle. They can also provide window maintenance to prevent issues in the future.
Professionals may charge $100-$300 or more depending on the specific job. Simple DIY crank replacements often cost under $20.
Tips For Preventing Future Window Crank Handle Issues
To extend the life of your window cranks and minimize repairs down the road:
- Lubricate crank mechanisms periodically with penetrating oil or silicone spray.
- Make sure windows close tightly so rain and moisture don’t enter.
- Promptly replace loose or damaged handles.
- Use control to gently open stiff windows – don’t force.
- Keep paint trimmed back from window edges.
Avoid pounding on windows or straining handles to open stuck windows. This will only cause more damage.
Conclusion
Replacing a broken window crank handle is usually a quick and inexpensive DIY home repair. With some basic tools and a replacement handle, most handy homeowners can handle this project on their own. Pay attention to proper handle fit and use care when drilling or filing to avoid damaging parts. For major window hardware issues beyond just the crank, or for windows in risky locations, calling a professional may be the safest route. With routine window maintenance and proper operation, you can minimize the need for future crank replacements.
| Crank Handle Issue | Likely Cause | Solution |
|---|---|---|
| Missing handle | Handle fell off or was removed | Obtain and install replacement handle |
| Loose handle | Loose fastener | Tighten or replace mounting screw and/or add washers |
| Stripped handle | Worn out gear mechanism | Replace handle |
| Cracked or broken handle | Damage from impact or straining | Replace damaged handle |
| Window stuck shut | Hardware, paint, or frame issues | Inspect window for damage. Repair hardware or call professional. |
Crank Handle Replacement Costs
| Option | Cost Range |
|---|---|
| DIY crank replacement | $10-$30 |
| Professional replacement | $100-$300 |