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Locksmiths in Boston

Star Locksmith

170 Bradford Road
4.93(
246
)
•Approved Pro

Star Locksmith

170 Bradford Road
4.93(
246
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
36 years of experience

Star Locksmith is a family-owned and -operated business. We strive to provide you with outstanding customer service and guarantee all of our work. Our locksmiths have more than 20 years of experience.

"Couldn’t ask for more. Polite professional timely and job well done."

N D on June 2019

Star Locksmith is a family-owned and -operated business. We strive to provide you with outstanding customer service and guarantee all of our work. Our locksmiths have more than 20 years of experience.

"Couldn’t ask for more. Polite professional timely and job well done."

N D on June 2019

Avatar for Bolt Lock & Key

Bolt Lock & Key

244 Corey Road
4.85(
13
)
•Approved Pro

Bolt Lock & Key

244 Corey Road
4.85(
13
)
•Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

Commercial Residential Automotive Locksmith services. By appointment only.

"Jon is incredibly skilled, professional and patient in terms of explaining the functions and implementation of a smart lock system in our home. There was an enormous difference in the quality of installation in comparison to the existing locks installed by our contractors. Highly recommended with five stars!"

Sam M on January 2019

Commercial Residential Automotive Locksmith services. By appointment only.

"Jon is incredibly skilled, professional and patient in terms of explaining the functions and implementation of a smart lock system in our home. There was an enormous difference in the quality of installation in comparison to the existing locks installed by our contractors. Highly recommended with five stars!"

Sam M on January 2019

Avatar for Mass Lock, Inc.

Mass Lock, Inc.

285 Main Street
4.91(
57
)
•Approved Pro

Mass Lock, Inc.

285 Main Street
4.91(
57
)
•Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
29 local quotes requested

MassLock has been proudly servicing the Boston metro area since 1999. We take great pride in our experience, expertise, quality, and customer service that we provide to meet our consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order 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.

"Micheal came out to change multiple locks for us and was awesome! So friendly and efficient. Would reccomend!"

Jess N on November 2024

MassLock has been proudly servicing the Boston metro area since 1999. We take great pride in our experience, expertise, quality, and customer service that we provide to meet our consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order 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.

"Micheal came out to change multiple locks for us and was awesome! So friendly and efficient. Would reccomend!"

Jess N on November 2024

Astro Locksmith & Supply, Inc.

669 Washington Street
4.92(
299
)
•Approved Pro

Astro Locksmith & Supply, Inc.

669 Washington Street
4.92(
299
)
•Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
22 local quotes requested

At Astro Locksmith, Inc., we are your locksmith experts! We are proud to offer our customers a family owned and operated business with over 20 years of experience. Customer response is within 15 minutes so call us now!

"My front door has been wrong since we moved here two years ago. Now it closes and locks properly. And I loved that he didn’t try to talk us into getting a new door. "

Robyn H on September 2025

At Astro Locksmith, Inc., we are your locksmith experts! We are proud to offer our customers a family owned and operated business with over 20 years of experience. Customer response is within 15 minutes so call us now!

"My front door has been wrong since we moved here two years ago. Now it closes and locks properly. And I loved that he didn’t try to talk us into getting a new door. "

Robyn H on September 2025

Mattapan MA Locksmith Store

1336 Blue Hill Avenue (Suite: 118C)
No reviews yet

Mattapan MA Locksmith Store

1336 Blue Hill Avenue (Suite: 118C)
No reviews yet
23 years of experience

Mattapan MA Locksmith Store provides a range of Locks and keys solutions for your Home, Business or vehicle at fair prices. Mattapan, MA Locksmith Service.

Mattapan MA Locksmith Store provides a range of Locks and keys solutions for your Home, Business or vehicle at fair prices. Mattapan, MA Locksmith Service.

Cityside Locksmith

14 Arizona Terrace
No reviews yet

Cityside Locksmith

14 Arizona Terrace
No reviews yet
14 years of experience

Small mobile locksmith based in Arlington, Mass. Specializing in car keys. Also offering general residential and commercial locksmith service. Emergency services prioritized. Operating 24 hours a day. Honest prices, quotes offered over the phone.

Small mobile locksmith based in Arlington, Mass. Specializing in car keys. Also offering general residential and commercial locksmith service. Emergency services prioritized. Operating 24 hours a day. Honest prices, quotes offered over the phone.

Scituate MA Locksmith Store

23 Mill Wharf Plaza (Suite: 145F)
No reviews yet

Scituate MA Locksmith Store

23 Mill Wharf Plaza (Suite: 145F)
No reviews yet
23 years of experience

At Scituate MA Locksmith Store our promise to you and this great community is a great Locksmith Service in Scituate, MA. We offer Locksmith Service at any time 24 hours.

At Scituate MA Locksmith Store our promise to you and this great community is a great Locksmith Service in Scituate, MA. We offer Locksmith Service at any time 24 hours.

Ashland MA Locksmith Store

179 Main St (Suite: 159D)
No reviews yet

Ashland MA Locksmith Store

179 Main St (Suite: 159D)
No reviews yet
31 years of experience

At Ashland MA Locksmith Store our promise to you and this great community is a great Locksmith Service in Ashland, MA. We offer Locksmith Service at any time 24 hours.

At Ashland MA Locksmith Store our promise to you and this great community is a great Locksmith Service in Ashland, MA. We offer Locksmith Service at any time 24 hours.

Zamok

No reviews yet

Zamok

No reviews yet
14 years of experience

For payment its credit card or cash only

For payment its credit card or cash only

Medford MA Locksmith Store

70 Salem St (Suite: 420A)
No reviews yet

Medford MA Locksmith Store

70 Salem St (Suite: 420A)
No reviews yet
30 years of experience

At Medford MA Locksmith Store our promise to you and this great community is a great Locksmith Service in Medford, MA. We offer Locksmith Service at any time 24 hours.

At Medford MA Locksmith Store our promise to you and this great community is a great Locksmith Service in Medford, MA. We offer Locksmith Service at any time 24 hours.

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FAQs for locksmith service projects in Boston, MA

The installation timeframe varies based on door preparation and lock complexity. For doors already prepared with appropriate holes, installation might take 15 to 30 minutes. New installations requiring drilling take one to two hours. First-time DIY installers should allocate additional time to ensure proper alignment and function. Professional locksmiths complete standard installations efficiently due to their specialized tools and experience.

Most residential doors can accommodate deadbolts, but certain door types present challenges. Solid wood and fiberglass doors accept standard deadbolt hardware, while metal doors require specialized drilling equipment. Hollow-core interior doors lack the structural integrity to properly support deadbolts without additional reinforcement. Doors should be at least 1⅜ inches thick to properly house standard deadbolt mechanisms.

Door warranties remain valid when deadbolts are installed according to the manufacturer's guidelines. However, improper installation that damages the door structure might affect warranty coverage. 

Before modifying any door under warranty, review the documentation for specific limitations or requirements regarding hardware installation. Some manufacturers provide templates or guidelines for acceptable lock placement to maintain warranty protection.

Rekeying offers a more economical alternative to complete replacement when you need to change access, but the lock mechanism remains in good condition. This process involves reconfiguring the internal pins to work with a new key while retaining the existing hardware. For homeowners with multiple locks, rekeying provides the convenience of using a single key for all entry points while maintaining security.