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Top-Rated Locksmiths in Hartford - Updated Nov 2026

Avatar for ADT
ADT
4.5(
891
)
Security Safe - Install

Serving Hartford, ME 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

33 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Helpful Hands
Helpful Hands
4.8(
20
)
Hardware, Latches & Tracks (Door) - Repair or Replace

Serving Hartford, ME and surrounding areas

In business since 2023

Free estimates

Credit card accepted

"I would highly recommend Walter Russell of A-Handyman. He was very prompt and accurate when providing an estimate. When the door that has been purchased for the rear of my home, didnâ t quite fit right he made it work and came back to finish the trim. I asked him about the possibility of putting up shutters I had taken down to paint, and next thing I know he had them done. He was very reasonable and reliable. I wish I had found him before working with someone else and other doors I was replacing."
Response time3 days
Recommended by90%of homeowners
Avatar for Frontpoint
Frontpoint
4.7(
8,819
)
Security Safe - Install

Serving Hartford, ME and surrounding areas

In business since 2007

Free estimates

Emergency services offered

"I had a bit of trouble with my molding around the doors vs how the system was designed. The tech guy hung with me for 39 minutes until it was perfect. I called customer service a couple times after that with questions that came up. The customer service team are professional and knowledgeable."
Recommended by93%of homeowners
Avatar for Security One
Security One
4.1(
456
)
Security Safe - Install

Serving Hartford, ME and surrounding areas

In business since 2007

Credit card accepted

"I switched from another company to Security One, they use the same equipment. They had to come out and recode everything. I simply switched because of the financial benefit. I have only had them for a few months, and I haven't had any problems with them. They save me some money every month.  When my alarm went off, they did call me."
Pictures
Compare our Compact Door Sensors to our Competitors
Additional Photos
Additional Photos
Additional Photos

+16

Recommended by84%of homeowners
Avatar for AIO Integrations LLC
AIO Integrations LLC
4.6(
18
)
Security Safe - Install

Serving Hartford, ME and surrounding areas

In business since 2020

Emergency services offered

Credit card accepted

"There were many things wrong in my computer (my fault and letting grandchildren on computer) Robert was so helpful, gave me many good instructions to keep everything safe, which I have written down, feel like I have a new computer. He was so excellent and experienced, took his time and was meticulous about what needed to be done. He was a pleasure to work with and I will use this company again! Linda Disy"
Helping a Victim who was being Cyber-stocked
WIndows Update Broken
Computer Tune-up
Additional Photos
Recommended by91%of homeowners
Avatar for Protect America Home Security
Protect America Home Security
3.5(
227
)
Security Safe - Install

Serving Hartford, ME and surrounding areas

In business since 1992

Free estimates

Emergency services offered

"Very professional.
Pricey but high quality and excellent customer service.  The company and all service personnel and customer service are ALL in the United States of America.
The system is easy to use and any questions are answered promptly and completey.
"
Platinum Package - Protects up To 15 Doors / Windows for FREE
Protect your Whole Home
Simon XT Touchscreen
Recommended by64%of homeowners
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Locksmiths FAQs, answered by experts

Yes, but adding a deadbolt to some door materials, like steel, may make installation a little bit trickier. For these materials, you will want to hire a locksmith to do the work for you, but be aware that they may charge an additional fee of $25 to $50 or more.

If you’re having an issue turning the key inside a lock, chances are there is dust or dirt buildup within the cylinder. The easiest solution is applying a dry lubricant to the lock, which loosens the dirt buildup. You may need to turn the key a few times for it to work properly again.

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.

In some cases this is possible, but it’s not advisable as the screwdriver is likely to leave marks all over the wall and a noticeable dent on the door. Move slowly and carefully if you have to use this method, and consider calling an emergency locksmith right away instead of trying to break in.

Regrettably, entirely pick-proof locks don't exist unless you opt for keyless varieties. Locks advertised as "pick-proof" are, in reality, more resilient against lock-picking and bumping attempts because of complex mechanisms consisting of pins and sidebars. These locks work like this—they assign two tasks to the key, enhancing security by making unauthorized entry more challenging.

The Hartford, ME homeowners’ guide to locksmith services

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