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TRUSTED BY SOUTH PLAINFIELD, NJ HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon118
    Verified locksmith services reviews

Top-Rated Locksmiths in South Plainfield - Updated Nov 2026

Avatar for SafeStreets - ADT Authorized Provider
SafeStreets - ADT Authorized Provider
4.8(
320
)
Security Safe - Install

Serving South Plainfield, NJ and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

"SafeStreets provided an outstanding experience from start to finish. The installation was quick, and the technician explained everything clearly. The system works perfectly, and the home automation features are a huge bonus. Highly recommend SafeStreets!"
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+1

4 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Mr. Handyman of S. Orange/Westfield/Scotch Plains & Metuchen
Mr. Handyman of S. Orange/Westfield/Scotch Plains & Metuchen
4.5(
516
)
Hardware, Latches & Tracks (Door) - Repair or Replace

Serving South Plainfield, NJ and surrounding areas

Approved

In business since 2008

Warranties offered

Credit card accepted

"I highly recommend Robert from Mr. Handyman. He was prompt and professional. He replaced the glass for my storm door, including the light bulbs for my ceiling. He also clean up the workspace afterward. The work was completed efficiently. I'll definitely hire him again."
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+350

Response time3 days
Response rate100%
1 neighbors recently requested a quote
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Showing 1-10 of 374
Locksmiths FAQs, answered by experts

Lubricating a door lock is an important part of door lock maintenance. It involves taking the lubricant of your choice (it’s best to use whatever the lock’s manufacturer suggests) and spraying it directly into the keyway. Push and pull your key in and out of the lock to make sure it’s all the way in. 

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.

The benefit of deadbolt locks is that they're much harder to force open than simple locks with pin tumbler mechanisms, so they may offer added security. This feature is why many locksmiths recommend deadbolts for home security. For many households, this added protection and peace of mind is well worth the cost of installing a deadbolt.

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.

Yes, with better technology now available, it’s possible to add a smart lock on your sliding glass door. Smart locks can be easy for almost everyone in the family to operate and can connect to other safety features in the home, like smart lights. Plus, they’re harder for would-be criminals to pick. However, keep in mind that smart locks can potentially be hacked, and some completely rely on phones or Wi-Fi, which can be an issue if the power goes out.

The South Plainfield, NJ homeowners’ guide to locksmith services

From average costs to expert advice, get all the answers you need to get your job done.