Privacy and safety are top priorities for any bathroom door. If you’re fitting a new handle or upgrading your bathroom, you might encounter the term “thumbturn”—but what exactly is it, and do you really need one for your bathroom door? This guide from Door Handle Company explains everything, including fitting tips and which thumbturns will suit your project.
What Is a Bathroom Thumbturn?
A bathroom thumbturn is a small, turn-operated mechanism fitted to the inside of a bathroom or WC door. It allows the occupant to lock the door from the inside—without a key—by simply turning the knob. On the outside, a matching “release” or “emergency coin slot” lets the door be unlocked in case of emergency.
You’ll find bathroom thumbturns as standalone items or as part of bathroom handle sets at Door Handle Company.
How Does a Thumbturn Work?
The thumbturn works with a bathroom mortice lock, which is a special type of lock fitted into the door edge. When you turn the thumbturn, it operates a bolt inside the lock, securing the door from the inside. The outside release means that, if needed, someone can open the door with a coin or screwdriver—ensuring privacy doesn’t come at the cost of safety.
This setup is essential for bathrooms, cloakrooms, en-suites, and WC doors in any family home or shared accommodation.
Do You Need a Bathroom Thumbturn?
If your bathroom, WC, or en-suite is fitted with a privacy handle that already includes a thumbturn, you’re covered. However, if you have a standard lever or knob handle, you’ll need to add a separate thumbturn and release set for true bathroom privacy and emergency access.
Legal note:
For HMOs, rentals, and new builds, UK building regulations require that bathroom locks can be opened from outside in an emergency. A thumbturn with a release satisfies this legal safety requirement.
When Should You Upgrade or Replace a Thumbturn?
- If your bathroom lock doesn’t allow emergency access from outside, upgrade to a bathroom thumbturn and bathroom mortice lock.
- If the thumbturn is stiff, worn, or broken, replacing it is quick and inexpensive.
- For matching finishes—updating handles and thumbturns together ensures a seamless look.
See matching chrome, brass, matt black, and satin nickel options.
Types and Finishes of Bathroom Thumbturns
Door Handle Company stocks bathroom thumbturns in every major finish and style:
- Chrome thumbturns: Modern and versatile—suits most bathrooms.
- Matt black thumbturns: Stylish and contemporary, matches black handles.
- Brass thumbturns: Classic and warm for period or luxury homes.
- Satin nickel thumbturns: Sleek, subtle, and easy to match with hinges.
For a perfectly coordinated look, browse bathroom handle sets with thumbturns included.
How to Fit a Bathroom Thumbturn
1. Remove the Old Hardware (if replacing):
Take out any existing handle, latch, or privacy lock.
2. Fit a Bathroom Mortice Lock:
Install a compatible bathroom mortice lock in the edge of the door. The lock has two holes—one for the handle spindle, one for the thumbturn spindle.
3. Mark and Drill Holes:
Drill for both the handle and the thumbturn, following the manufacturer’s instructions. Pilot holes help avoid splitting the door.
4. Attach the Thumbturn and Release:
Secure the thumbturn inside, with the emergency release plate outside. Insert the spindle and fix with supplied screws.
5. Test Operation:
Ensure the thumbturn turns smoothly and the external release works. Adjust if necessary.
For detailed visuals, Ideal Home’s fitting guide is a helpful resource.
Matching Accessories and Finishes
For the most professional result, match your thumbturn with door handles, hinges, and keyhole covers or escutcheons. This creates a seamless look, especially in modern homes and premium renovations.
For extra convenience, choose a bathroom handle set with matching thumbturn and fixings.
Maintenance Tips
- Lubricate the mechanism every six months to prevent sticking.
- Tighten any loose screws to keep the action smooth.
- Regularly check the external release for ease of use—crucial in family homes.
Why Buy Bathroom Thumbturns from Door Handle Company?
- Wide choice of thumbturns and releases in all finishes
- Bathroom handle sets for coordinated upgrades
- Expert advice and fast UK delivery
- Contact us for product matching and fitting support
Ready to upgrade your bathroom privacy? Shop thumbturns and bathroom handles now.