How much does door knob replacement cost?
How much does door knob replacement cost?
$100 – $250 average total cost
Average cost to replace a door knob
Door knob replacement costs $100 to $250 on average, depending on the hardware style and labor required. The final price varies based on the type of door knob and lock, whether it's an interior or exterior door knob, and if modifications are needed.
| National Average Cost | $150 |
| Minimum Cost | $75 |
| Maximum Cost | $400 |
| Average Range | $100 to $250 |
Door knob replacement cost factors
Several factors affect the total cost of replacing a door knob, from the hardware you choose to the complexity of installation. Labor typically makes up about 50% to 60% of the total cost.
| Factor | Average cost |
|---|---|
| Door knob & hardware | $40 – $100 |
| Labor | $60 – $150 |
| Total cost | $100 – $250 |
Door knob style
The style and finish of your new door knob impact the price. Basic brushed nickel or chrome knobs cost less than ornate antique brass or custom designs.
If the new knob matches the previous one's size and configuration, installation is straightforward. However, switching styles may require drilling new holes or filling old ones, increasing labor time and costs.
Interior vs. exterior door knob
Exterior door knobs are built with weather-resistant materials and stronger security features, making them more expensive than interior knobs. They need to withstand the elements while providing better protection against break-ins. Interior knobs cost less because they don't require the same durability or security level.
Security options
The level of security you need affects both the hardware cost and installation complexity:
No lock: Basic passage knobs for closets and hallways are the most affordable option and easiest to install.
Key lock: Traditional keyed locks offer basic security and are moderately priced, suitable for bedrooms and exterior doors.
Keyless lock: Digital keypads eliminate the need for physical keys and cost more than traditional locks but offer convenient access.
Smart lock: Wi-Fi enabled locks with smartphone control are the priciest option, often requiring additional setup for connectivity.
Deadbolt: Adding a deadbolt alongside your knob provides maximum security but increases both material and labor costs.
Number of door knobs
Replacing multiple door knobs during one service call reduces the cost per knob. Many professionals offer discounted rates for bulk replacements since they're already at your home.
Replacement vs. new installation
Replacing an existing door knob costs less than installing one where none existed before. New installations require cutting precise holes in the door and frame, which takes more time and skill. Replacements usually involve removing the old hardware and fitting the new knob into existing holes.
FAQs about door knob replacement
How long does it take to replace a door knob?
A professional can replace a standard door knob in about 30 minutes if the new hardware fits the existing holes. More complex installations, like smart locks or knobs requiring new holes, may take 1 to 2 hours.
Can you replace one side of a door knob?
Yes, you can replace just the interior or exterior side of a door knob if both sides are compatible. However, most modern door knobs are sold as complete sets, and mixing brands or styles may not work properly. Replacing both sides together is more reliable as it ensures proper fit and function.
Getting quotes for door knob replacement
Follow these tips to ensure you hire the best locksmith or handyperson near you:
Get estimates from multiple pros to compare prices and services.
Read reviews of local handypersons on HomeGuide and Google.
Ask for an itemized quote that breaks down the material and labor costs.
Confirm the pro is licensed and insured.
Questions to ask about door knob installation
Ask these questions to help you choose a reputable, experienced locksmith or handyperson:
How many years have you been installing door hardware?
Can you supply the door knob hardware, or should I purchase it separately?
What brands and styles do you recommend for my needs?
Will you need to drill new holes or modify my door in any way?
How long will the installation take?
Do you offer discounts for replacing multiple door knobs at once?
Are you experienced with smart lock installation and setup?
What happens if the new knob doesn't fit properly?
Do you provide a warranty on your installation work?
Can you rekey the new locks to match my existing keys?
Using our proprietary cost database, in-depth research, and collaboration with industry experts, we deliver accurate, up-to-date pricing and insights you can trust, every time.