If a lock or key problem has you stuck in Ontario, our mobile deadbolt installation technicians are only minutes away. Our promise is simple: a clear price before we start, skilled work, and no mess left behind.
That combination of speed, skill and fair pricing is why so much of our work comes from Ontario referrals. A deadbolt is the single most cost-effective security upgrade for an entry door. We install and replace single- and double-cylinder deadbolts with reinforced strike plates for real holding power.
Why Choose Don's Locksmith in Ontario
Here is what you get when you choose us for deadbolt installation in Ontario:
- Keyed alike with your other locks
- Reinforced strike plates included across Ontario and the Inland Empire.
- Grade-1 commercial options available
- Strong resistance to forced entry — something Ontario customers appreciate.
- Single or double-cylinder options
- Clean, precise installation
Proudly Serving Ontario, San Bernardino County
Our Ontario coverage extends across the Inland Empire, so if you are in or around Alta Loma, Bloomington, Calimesa and Chino, the same fast service applies. Local knowledge matters: our technicians know the neighborhoods, building styles and common lock types found across Ontario.
What Our Deadbolt Installation Service Covers
Understanding the service helps you make the right call, so here is a quick overview. A deadbolt is the single most cost-effective security upgrade for an entry door. We install and replace single- and double-cylinder deadbolts with reinforced strike plates for real holding power.
Add a strong deadbolt for serious door security. People across Ontario search for this using terms like deadbolt installation, double cylinder deadbolt installation and deadbolt replacement — whatever you call it, we handle it.
Need help right now?
Licensed technicians are standing by 24/7.
Our Simple Deadbolt Installation Process
Our deadbolt installation process in Ontario is straightforward and stress-free:
- 1Assess the doorWe confirm thickness, backset and placement for the deadbolt.
- 2Bore if neededNew installations are bored to exact tolerances.
- 3Install deadbolt & strikeThe bolt and a reinforced strike are fitted and aligned.
- 4Test throw & keyWe ensure the bolt throws fully and the key turns smoothly.
Common Ontario Situations We Solve
You might need our deadbolt installation in Ontario if any of these sound familiar:
- You want stronger entry security
- You are reinforcing after a break-in
- The deadbolt is loose or sticks
- Your door only has a knob lock
- You want the deadbolt on your house key
Fair Ontario Pricing
Nobody likes a surprise bill. That is why your Ontario technician explains the price in plain terms before any deadbolt installation work starts, and why our rates stay fair whether you call at noon or midnight.
Around-the-Clock Availability
From the moment you call, the clock starts for us too. We dispatch the nearest deadbolt installation technician to your Ontario location and keep you updated on their arrival so you are never left wondering.
A Locksmith You Can Trust
As a licensed California locksmith (license LCO 8144), we are held to professional standards — and we hold ourselves to higher ones. Our Ontario customers get courteous, uniformed technicians who respect your property and your time. Choosing the right locksmith in Ontario is easier when you know what to look for — and what we deliver.
Deadbolt Installation in Ontario — FAQs
We get a lot of questions about deadbolt installation. Here are clear answers for Ontario residents and businesses.
Single-cylinder (thumb-turn inside) is most common and convenient. Double-cylinder (key both sides) adds security for doors with nearby glass but can be a fire-safety concern, so we will advise on local code.
Yes, we bore the door precisely and install the deadbolt and strike for a factory-quality result.
Very much. A reinforced strike with long screws into the framing is what resists kick-ins, more so than the bolt alone.
Yes, we can key the new deadbolt to match your current lock so you carry one key.
Grade-1 offers the highest residential/commercial security; grade-2 is a solid residential choice. We help you choose based on the door and budget.
Yes — we cover all of Ontario and the surrounding the Inland Empire area, including nearby Alta Loma, Bloomington and Calimesa. Call (909) 455-3660 and we will confirm a fast ETA to your exact address.
Ready When You Are
From your first call to the final test of your lock or key, we make deadbolt installation in Ontario simple. Dial (909) 455-3660 and experience the Don's Locksmith difference for yourself.
Keep our number handy — you never know when the next lockout or key emergency will strike in Ontario.
We also provide deadbolt installation in nearby Alta Loma, Bloomington, Calimesa and Chino and across the Inland Empire.





