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TRUSTED BY MOUNT SINAI, NY HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon90
    Verified locksmith services reviews

Top-Rated Locksmiths in Mount Sinai - Updated Nov 2026

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

Serving Mount Sinai, NY 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 STANDGUARD SECURITY INC
STANDGUARD SECURITY INC
4.8(
75
)
Security Safe - Install

Serving Mount Sinai, NY and surrounding areas

Approved

In business since 1982

Free estimates

Customers say: Super punctual

"Hank and his son Ian were great! I called them in the morning and they came same day in the afternoon. provided me with a quote right away on the spot. Told them we could do it and they were here 5 days later putting new sensors in every window and door and also adding 3 smoke detectors and 2 carbon monoxide detectors. Highly recommend them!"
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+4

Response time9 hrs
Response rate100%
Recommended by96%of homeowners
Avatar for ADT
ADT
4.5(
889
)
Security Safe - Install

Serving Mount Sinai, NY and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1874

Free estimates

Emergency services offered

"Walter and Glen at Protect Your Home Group with ADT are the best people to talk to in terms of security alarm. Being a locksmith myself I know how important it is to deal with the right people. I referred a lot of customers to them and so far they are happy with their service. I myself got one for my house. Thank you for a consistent service and great deal."
Home Security Essentials
Smart Home Security
Cameras
Our Team
Home Security Essentials

+35

36 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for BuildingLI.com - BLI Facilities LLC
BuildingLI.com - BLI Facilities LLC
5.0(
32
)
Hardware, Latches & Tracks (Door) - Repair or Replace

Serving Mount Sinai, NY and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Eddie was great to work with! We had a limited time frame to adhere to town inspections and Eddie and his team knew exactly what we needed and quickly got the job done. The results were great and even the inspector acknowledged the impressive repair. They were able to put a knocked out garage wall back on the foundation and repair the interior dry wall. I would recommend this company for any professional contract work due to their reasonable price, ease to work with and quality of work."
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kitchen tile

+172

Response time7 hrs
Recommended by76%of homeowners
Emanual Constuction
5.0(
2
)
Hardware, Latches & Tracks (Door) - Repair or Replace

Serving Mount Sinai, NY and surrounding areas

Approved

In business since 2005

Free estimates

Customers say: Quality work

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers' needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Emanu construction llc
Emanu construction llc
Emanu construction llc
Emanu construction llc
Emanu construction llc

+11

Response time30 mins
Recommended by100%of homeowners
LJD Home Improvements
New to Angi
Hardware, Latches & Tracks (Door) - Repair or Replace

Serving Mount Sinai, NY and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We specialize in interior painting and provide unmatched customer service! You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction! We take care of our Veterans, Seniors, and the Disabled. \n

16 neighbors recently requested a quote
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Showing 1-10 of 305
Locksmiths FAQs, answered by experts

If you don’t have your original key, the easiest way to obtain a copy is to call a locksmith. For house keys, your locksmith has several options for configuring a new key: 

  • They can input a lock’s identification code into a database to obtain key-cutting instructions.

  • They could analyze the lock cylinder to determine how to cut a new key.

  • They can create an impression of the lock cylinder from which to cut a new key. 

You can cut a door knob off using a sawzall, but you risk causing additional damage to the door itself. You’ll also need to completely replace the door knob, costing you extra money and another trip to the hardware store.

Many local hardware stores have the equipment to copy basic keys at a low cost. Some locations may have freestanding machines where you can pick out a blank and insert it and your original key into the duplicating machine.

A deadbolt differs from a regular lock in its design, construction, and security level. Regular locks are typically used for interior doors, such as for bedrooms and bathrooms, and provide minimal security. They are easy to install and use, often featuring a simple locking mechanism on the inside. In contrast, a deadbolt is one of the most secure locks you can install on an exterior door. Its internal construction is designed to withstand significant force, adding a crucial layer of security that can deter intruders. While deadbolts may be more expensive and complicated to install, they are cost-effective for the security they provide and are built to hold up to wear and tear.

Yes, as long as it’s thick enough for the deadbolt. Most interior hollow core doors are at least 1 1/2-inches thick, which is usually the minimum requirement for a deadbolt. You’ll want to find the lock block first before installing. Also, most hollow doors require additional reinforcement for locks, such as a reinforcement plate or plywood block.

The Mount Sinai, NY homeowners’ guide to locksmith services

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