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TRUSTED BY CHELMSFORD, MA HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon99
    Verified locksmith services reviews

Top-Rated Locksmiths in Chelmsford - Updated Nov 2026

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

Serving Chelmsford, MA and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Emergency services offered

"Dave Smith was AWESOME! Very knowledgeable and patient. We added new items to our order at the 12th hour and he came back twice to make sure that everything was completed as we desired. We also had Alarm Protection Group secure our office. Dave Smith and Co. make the process very easy-Highly recommended."
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Additional Photos

+1

4 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Phalan Construction & The Handyman
Phalan Construction & The Handyman
4.8(
353
)
Hardware, Latches & Tracks (Door) - Repair or Replace

Serving Chelmsford, MA and surrounding areas

Approved

Super Service Award Winner

In business since 1988

Emergency services offered

Warranties offered

"Having used his services for many years now, we highly recommend handyman Bob Phalan. Our projects this year alone have involved repairing cracked cement on our front steps, patching roof and gutter leaks, power washing, gutter cleaning, and laying brick trim in the garden. We’ve also used him for several carpentry projects, installing locks, painting and general repairs. Bob is very reliable and communicates well. He shows up when he says he will, does quality work and cleans up like he was never here. He is friendly, professional and extremely knowledgeable about materials, tools and processes. Bottom line . . . he can do pretty much anything and do it well."
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Recent Basement Alteration
2
Recent Bathroom

+33

1 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for ADT
ADT
4.5(
890
)
Security Safe - Install

Serving Chelmsford, MA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1874

Free estimates

Emergency services offered

"ADT is the best company 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

35 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Mead Handyman Service, LLC
Mead Handyman Service, LLC
4.2(
160
)
Hardware, Latches & Tracks (Door) - Repair or Replace

Serving Chelmsford, MA and surrounding areas

Approved

In business since 2015

Free estimates

Offers commercial services

Welcome to Mead Handyman Service, LLC. We've been serving the local area to provide quality work at an affordable rate. There is no job too big or too small. We cover all handyman services including, but not limited to, interior painting, exterior painting, laminate flooring, vinyl flooring, ceramic tile flooring, ceramic tile, drywall repair, drywall install, deck repairs, deck staining, power washing, lawn care, junk removal, and more!

Gallery
Gallery
Gallery
Recommended by78%of homeowners
House Doctors of Chelmsford
4.8(
10
)
Hardware, Latches & Tracks (Door) - Repair or Replace

Serving Chelmsford, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Credit card accepted

At House Doctors, we make home improvements hassle-free and reliable. We provide honest, transparent service and skilled craftsmanship at fair prices for residential and commercial properties. \n \nFrom your first call to project completion, experience our dedication to professionalism with free estimates, upfront pricing, and quick response times.

Response time10 hrs
Response rate88%
52 neighbors recently requested a quote
Avatar for Happy Locksmith
Happy Locksmith
New to Angi
LocksmithLocksmith - AutoLocksmith - For Business

Serving Chelmsford, MA and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

Happy Locksmith is a trusted mobile automotive locksmith serving Dover, Portsmouth, Rochester, Durham, Somersworth, Exeter, and surrounding areas in New Hampshire.\n\nWe specialize in fast, reliable, and professional automotive locksmith services, including:\n\n* Car key replacement\n* Lost car key solutions\n* Spare key duplication\n* Key fob programming\n* Smart key programming\n* Transponder key programming\n* Emergency vehicle lockout service\n* Broken key extraction\n* Ignition key cutting and replacement\n\nOur goal is to provide honest pricing, quick response times, and high-quality workmanship. Whether you’ve lost your only key, locked your keys inside your vehicle, or need a spare key programmed, we’re equipped with professional locksmith tools to get you back on the road as quickly as possible.\n\nWe service most major vehicle brands, including Toyota, Honda, Ford, Chevrolet, GMC, Dodge, Chrysler, Jeep, Nissan, Hyundai, Kia, Mazda, Subaru, and many more.\n

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Locksmiths FAQs, answered by experts

Lock picking is a relatively subtle method of unauthorized access, making it hard to detect. But there are telltale signs to look for. First, look for scratches or tool marks around the keyhole or the lock's surface. Also, check for loose or misaligned components, like a wonky strike plate, which could indicate tampering. Consulting a locksmith or security professional for an assessment can provide valuable insights, too. Investing in high-quality locks and considering additional security measures, like security cameras, can help deter potential intruders and enhance your overall safety.

When you take a key to a hardware store or a locksmith for copying, you can expect the key-cutting process to take as little as 30 seconds. The key copier will review your current key to decide on the correct blank. Then, your original key and the blank are inserted into a key duplication machine to cut an exact key copy. When it’s all said and done, you can have a new key in your hand in just a couple of minutes.

Yes, it’s possible a burglar can get through a deadbolt. Some types of deadbolts are harder for an intruder to get through, though. For example, a single-cylinder lock only requires breaking a window nearby and simply turning it. While other locks, such as a double-cylinder lock, may offer greater protection and make it harder for an intruder, no deadbolt is 100 percent effective.

First thing first: Make sure you’re using the right key. If it’s the correct key for your lock, there are a few reasons why it may not be working, like the key is worn out or the lock is jammed. Try lubricating the lock and pushing the door closed to ensure the mechanisms work correctly. If you’re still locked out, call in for help.

Find a vetted and trusted locksmith to work on your home so you can feel comfortable and safe. Hire a professional with these qualifications:

  • Search a verified directory of locksmiths near you, like those on Angi. 

  • Check for an Associated Locksmiths of America (ALOA) logo on their website or company logo.

  • Read company reviews. You can also check their social media pages.

  • Ask for a pro’s credentials, insurance, licensure, and customer testimonials. 

  • Check if the locksmith is knowledgeable about various topics, from decorative locks to the newest technologies on the market.

The Chelmsford, MA homeowners’ guide to locksmith services

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