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TRUSTED BY ONTARIO, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon120
    Verified locksmith services reviews

Verified Reviews for Locksmith Service pros in Ontario, CA

*The Angi rating for Locksmith Service companies in Ontario, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Locksmith Service needs.

*The HomeAdvisor rating for Locksmith Service companies in Ontario, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Locksmith Service needs.

Last update on December 25, 2025

Find Locksmiths in Ontario

Avatar for Alph Lock & Safe

Alph Lock & Safe

4.72(
227
)
•Approved Pro

Alph Lock & Safe

4.72(
227
)
•Approved Pro
Super Service Award
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
22 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Feel free to book online with us today! Please Note: We are unable to do keys for Automobiles, E Bikes and RV's and Boats. Thank you.

"Timely done."

Prasad C on November 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Feel free to book online with us today! Please Note: We are unable to do keys for Automobiles, E Bikes and RV's and Boats. Thank you.

"Timely done."

Prasad C on November 2025

Avatar for D Locks

D Locks

4.98(
289
)

D Locks

4.98(
289
)
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Lock change, install, repair, re keyed, panic exit devices, door closers, master systems, electronic & magnetic locks, intercom systems, safes, service & repair, keyless entry systems, closed circuit tv systems & access control alarm. Please leave a contact phone number when emailing and calling so I can promptly give you a call back at my earliest convenience to schedule an appointment and answer any questions. For fast service give David a call: (818) 209-0973!

"Excellent. Showed up on time, professional, reasonable, and quick."

Carol D on November 2020

Lock change, install, repair, re keyed, panic exit devices, door closers, master systems, electronic & magnetic locks, intercom systems, safes, service & repair, keyless entry systems, closed circuit tv systems & access control alarm. Please leave a contact phone number when emailing and calling so I can promptly give you a call back at my earliest convenience to schedule an appointment and answer any questions. For fast service give David a call: (818) 209-0973!

"Excellent. Showed up on time, professional, reasonable, and quick."

Carol D on November 2020

Avatar for Guardian Protection

Guardian Protection

4.74(
2,120
)

Guardian Protection

4.74(
2,120
)
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

Protecting homes and businesses since 1950, Guardian Protection is one of the nation's largest and most highly regarded security companies. We provide smart technology, 24/7 professional monitoring, and peace of mind to hundreds of thousands of customers. Our products are installed by experts, monitored by real people, and truly make a difference. We do what we do because of one simple truth: life is better when it's safe.

"We hired Guardian to install our security system at our Washington, DC, business. The service and quality of the work was horrible. We had cameras and an alarm system installed; it was a relatively large system. They outsource most of the work to various vendors. They could not manage their vendors; what was supposed to take a week took two months. The sales rep did not return calls, and you could never get anyone in management on the phone. Random people would show up at unannounced times. The few things that an actual Guardian employee did were they made a huge mess of our newly remodeled office and were rude to our staff. We have offices in five markets across the US and have high security at each; we have never had such a poor experience."

William M on December 2024

Protecting homes and businesses since 1950, Guardian Protection is one of the nation's largest and most highly regarded security companies. We provide smart technology, 24/7 professional monitoring, and peace of mind to hundreds of thousands of customers. Our products are installed by experts, monitored by real people, and truly make a difference. We do what we do because of one simple truth: life is better when it's safe.

"We hired Guardian to install our security system at our Washington, DC, business. The service and quality of the work was horrible. We had cameras and an alarm system installed; it was a relatively large system. They outsource most of the work to various vendors. They could not manage their vendors; what was supposed to take a week took two months. The sales rep did not return calls, and you could never get anyone in management on the phone. Random people would show up at unannounced times. The few things that an actual Guardian employee did were they made a huge mess of our newly remodeled office and were rude to our staff. We have offices in five markets across the US and have high security at each; we have never had such a poor experience."

William M on December 2024

Avatar for Door Dr

Door Dr

4.92(
194
)

Door Dr

4.92(
194
)
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Please call me 626 285 3667 or direct email to [email protected]. Any other type of contact such as fax, text, Angie's List message center... just doesn't work, sorry. Thank you for understanding. Award winning.

Please call me 626 285 3667 or direct email to [email protected]. Any other type of contact such as fax, text, Angie's List message center... just doesn't work, sorry. Thank you for understanding. Award winning.

21ST CENTURY LOCK AND KEY

4.95(
22
)

21ST CENTURY LOCK AND KEY

4.95(
22
)
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

My name is Laurie and hope not to have to hear from you, but if you need a locksmith, please call and let's talk. I have been a licenced locksmith for 25 years, specializing in you security. If you would like I can give you a free check of your locks and recommend the right secuirty for you and your family. I offer a 10% discount for all Angie's list members as well as Senior's.

My name is Laurie and hope not to have to hear from you, but if you need a locksmith, please call and let's talk. I have been a licenced locksmith for 25 years, specializing in you security. If you would like I can give you a free check of your locks and recommend the right secuirty for you and your family. I offer a 10% discount for all Angie's list members as well as Senior's.

ALTADENA LOCK & KEY SHOP

4.91(
75
)

ALTADENA LOCK & KEY SHOP

4.91(
75
)
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

we are a business up and running since 1951. we welcome any commercial ,home and industrial costumers . take all mayor credit card ,checks and cash 4 employes

we are a business up and running since 1951. we welcome any commercial ,home and industrial costumers . take all mayor credit card ,checks and cash 4 employes

Avatar for SANDERS LOCK & KEY

SANDERS LOCK & KEY

5.00(
16
)

SANDERS LOCK & KEY

5.00(
16
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Local Locksmith specializing in Auto, Residential, and Commercial locks and keys.

"Very helpful! Because they don't normally do that, they just do towing for cars and trucks but they helped me. They didn't have to help me but they volunteered to help me."

joanne a on October 2019

Local Locksmith specializing in Auto, Residential, and Commercial locks and keys.

"Very helpful! Because they don't normally do that, they just do towing for cars and trucks but they helped me. They didn't have to help me but they volunteered to help me."

joanne a on October 2019

Redmond's Lock & Security

4.79(
28
)

Redmond's Lock & Security

4.79(
28
)
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

We are a family owned business that began over 35 years ago. We have many happy residential as well as commercial clients that have been serviced by us over the past decades.

We are a family owned business that began over 35 years ago. We have many happy residential as well as commercial clients that have been serviced by us over the past decades.

Avatar for Mulholland Brand

Mulholland Brand

4.71(
155
)

Mulholland Brand

4.71(
155
)
Customers say: Super punctual
31 years of experience

**WE OFFER THE LOWEST PRICE GUARANTEED** Mulholland Brand is a high-end direct manufacturer of low maintenance aluminum gates, fences, railings, and pergolas. For direct to consumer installations, we only offer the best quality to customers. With over 25 years of experience and a 4.9/5 star average user rating on Google and Yelp, you can count on us to do an amazing job. If you are looking for the highest quality manufacturing and installations, call us today at 818-639-3820 or check us out at http://www.mulhollandbrand.com for great service, great passion, and the best security gates in Los Angeles!

"Buyer Beware ? After the fires burned our gate we placed an order with Mulholland Brand under the assumption that they could deliver a specific product, as outlined in our original agreement. However, during a technician's visit to take measurements, we were informed that they would be unable to provide what was initially contracted & that it was backordered. Given the multiple red flags, vague and shifting details regarding design and timelines, and their ultimate inability to deliver the agreed-upon product, we chose to cancel the order. Importantly, this cancellation occurred before any fabrication or manufacturing began. Despite this, Mulholland Brand withheld $1,200 from our reimbursement without any prior notice or clear justification. Perhaps this practice of retaining fees was simply because a technician came to take measurements?ironically, the visit that confirmed they couldn't fulfill the original product in our agreement. Stay away Unethical business practices.. "

Penny K on October 2025

**WE OFFER THE LOWEST PRICE GUARANTEED** Mulholland Brand is a high-end direct manufacturer of low maintenance aluminum gates, fences, railings, and pergolas. For direct to consumer installations, we only offer the best quality to customers. With over 25 years of experience and a 4.9/5 star average user rating on Google and Yelp, you can count on us to do an amazing job. If you are looking for the highest quality manufacturing and installations, call us today at 818-639-3820 or check us out at http://www.mulhollandbrand.com for great service, great passion, and the best security gates in Los Angeles!

"Buyer Beware ? After the fires burned our gate we placed an order with Mulholland Brand under the assumption that they could deliver a specific product, as outlined in our original agreement. However, during a technician's visit to take measurements, we were informed that they would be unable to provide what was initially contracted & that it was backordered. Given the multiple red flags, vague and shifting details regarding design and timelines, and their ultimate inability to deliver the agreed-upon product, we chose to cancel the order. Importantly, this cancellation occurred before any fabrication or manufacturing began. Despite this, Mulholland Brand withheld $1,200 from our reimbursement without any prior notice or clear justification. Perhaps this practice of retaining fees was simply because a technician came to take measurements?ironically, the visit that confirmed they couldn't fulfill the original product in our agreement. Stay away Unethical business practices.. "

Penny K on October 2025

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Showing 1-10 of 518
Locksmiths questions, answered by experts

Rekeying should be done when employees leave or keys are lost, while replacement may be necessary for outdated or damaged locks.

Yes, locksmiths can design and install master key systems that grant different levels of access to various employees while maintaining overall security.

Lock bumping is a technique locksmiths use to quickly and quietly open a pin tumbler lock, typically found in most types of deadbolts. It involves inserting a specially crafted key, or bump key, into the lock and tapping or "bumping" it with a mallet or similar tool. The force applied causes the lock's pins to jump momentarily, allowing the lock to be turned and opened. Unfortunately, thieves also use this technique to break into homes. Luckily, products like a deadbolt strap will fortify your lock.

Any type of dead bolt lock provides the highest level of safety for a single device. However, it’s also important to determine a lock's grade. Locks can come in either Grade 1, Grade 2, or Grade 3, which indicates how durable it is and if it’s constructed solidly. Safety experts recommend choosing locks based on Grade 1, which offers the highest level of durability.

You should replace door locks when you move into a new home since you don’t know who has copies of the key. Other reasons to change your locks include an attempted break-in, when someone moves out of your home, or if you lose a key with an address attached to it.

The Ontario, CA homeowners’ guide to locksmith services

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