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We've got you covered! Our Clickers & Keys division is just a phone call away. Our fully stocked vans will come to you and program your new keys and fobs while you wait. Based in the town of Prospect, PA, yet serving all of Delaware County and beyond, McCausland Lock Service, Inc. is your premier commercial and residential Locksmith for all services you require.

There are not many locksmith companies who have stood the test of time in the area. We understand the frustration and confusion involved with being locked out of your home, business, or vehicle, and we make it our top priority to be there for when you need us.
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McCausland Lock Service, Inc. is the largest locksmith company serving the Delaware Valley area. The McCausland Family has been in the Locksmithing business for over 100 years. Chuck & Tom McCausland are the fourth generation, following in their dad Walt McCausland's footsteps, as experts in the security field.
Residential: Whether you're looking for a simple rekey for your current hardware, lost keys or locked out, modernizing an older lock on your door or upgrading to a smart lock or newer hardware, there is no job too small. Commercial: Access systems, panic bars, new security locks-Oh My! Have a business, make us your primary locksmith to serve your needs.
When you're searching for automotive keys, McCausland Lock Service is your best choice for quality, reliability and price! We have come into contact with many people who assume that modern vehicles must be taken to a car dealership for locksmith issues and keyless entry installations. This is actually not true.
Residents of the Delaware County and surrounding areas should be taking advantage of the professional services provided at McCausland Lock Service. We offer a comprehensive list of home security services including door locks, door knobs and door lever sets, deadbolts, lock cylinders, handle sets, and electronic keyless entry locks to your home.
Reviews (19)
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Kimberly Parris
Jun 08, 2022
Where I work needed multiple sets of keys made as well as a new doorknob that needed to be set to a certain key. They were able to cut all 20+ keys and the doorknob within an hour and I was able to pick them up before lunch on the same day!
Hak
May 15, 2022
I would recommend excellent service. I was amazed at how well organized they are team players. Everyone stepped in to help me get a key for my Car. Thanks again
Gary Myer
Apr 25, 2022
It took them a while to find the key blank for this crazy File cabinet lock I had, but they found it. This was the 2nd locksmith that I went to and they were able to get me taken care of.
Bill Batdorf
Apr 15, 2022
Fantastic place! Friendly doesn't go far enough to describe everyone there. And they know locks like nothing else. Highly recommend them!
Kenny Hall
Mar 14, 2022
Went here for a hard to find key and they had it and made a copy of my original in less then 3 minutes total in and out! A great local locksmith!
Kevin Kasper
Mar 01, 2022
I was trying to revive an old remote start system and after calling around, McCausland came recommended. I drove out and was super impressed by Chrissy and the team. Everyone was very nice, and eager to help. Though, my issue was complicated, they were willing to troubleshoot. Highly recommend!
Endopax D.
Feb 28, 2022
Needed a replacement ignition key and remote transmitter fob for my Acura SUV, since my better half had lost her set. Visited McCausland based on friends' very positive recommendations, and I had the pleasure of working with Charlotte and Denise. While I had already purchased a replacement key and fob, Charlotte politely informed me that she had two sets of my key and fob in stock in their shop.

This was impressive, as three Acura dealerships could not secure one until next month. Charlotte then proceeded to begin cutting the key blank based on my personal working key, and subsequently, went out to my SUV to program 1) the key to the immobilizer unit, and 2) the remote transmitter fob to the vehicle for door lock and tailgate operation. She moved through the steps as if she has performed these tasks many hundreds of times.

Upon checking out, the charge for her services was extremely competitive, and massively lower than what the dealerships charge. As I fully expected, the newly-cut key turned easily in the ignition switch and the fob operated perfectly. I am certain their high quality extends to all of their provided services, and consequently, if anyone is in need of competent and reasonably-priced auto/residential/commercial locksmith service, you will be glad you contacted McCausland.
Jim Kelly
Feb 21, 2022
Fast friendly service, and $100 less than an auto dealership for a genuine OEM duplicate key and remote. I highly recomend McCausland's
Dan O'Mara
Feb 19, 2022
I was in the store this morning. Amazing service. They were able to repair an old lock for me. Thanks ladies, you really made my day. Everyone was super friendly and knowledgeable. Awesome!
Joe DiDonato
Dec 30, 2021
Did two keys and programmed two remotes and I was in and out in less than 20 minutes. Great service in no time!
Alexander Markou
Dec 29, 2021
This Lock Service shop has a wide variety of items to choose from, friendly helpful staff and reliable quality service.
Bette Evans
Nov 07, 2021
I have used McCausland Lock Service twice now for duplicate key making when no other place could help me. They are very professional and got the job done. If I could rate them more than 5 stars I would.
Gloria Lupi
Nov 02, 2021
Great bunch of people.they can't do enough for you.will recommend to everyone Thank you for all of your help with my key fob that i lost.and thanks for not robbing me like the dealer was going to.very very satisfied
Gail Oxendine
Oct 22, 2021
Had a vehicle lockout and the locksmith that came out from McCausland was prompt and efficient. The prices were very reasonable. I would recommend them highly.
Angelee Gerovasiliou
Oct 04, 2021
Have been using McCausland Lock Service for years! Great customer service and quality work. Highly recommend! Thank you!
Christopher Heisey-Terrell
Sep 03, 2021
The guys did a fantastic job installing a new deadbolt and door handle (new holes). Punctual, professional and very friendly.
Tammy Olive
Aug 17, 2021
Nice helpful genuine employees. I had same guy help me both times he reallyy help me and did it for cheap to help even made me keys for free. Really nice guy.
Janet Letsche
Jul 24, 2021
The girls in the store we very friendly and knowledgeable. They knew just what we needed and we were in and out of the store in 10 minutes. The young man who came to our home to install the locks was very friendly and quickly installed our new locks. I would highly recommend McCausland Lock Service!
William Crockett
May 12, 2019
The team was extremely helpful and kind to everyone that walked in while I was there. The work done for me was perfect. I highly recommend McCausland Lock Service. Excellent selection of Sports Lanyard keychains. GO BIRDS!