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Leo Cornelius III's Bio:
Leo holds a Bachelor of Science in Business Administration degree with a major in supply chain management. He has been a full-time tech since 2017, with experience dating back to 2009. Leo enjoys traveling around the area, meeting new people, and admiring cool landscapes, cars, and animals. His hobbies include sports, video games, music, and traveling. While he has not practiced in years, Leo minored in French during his studies. He is married, has two cats, and resides in Phoenixville, PA.
Downingtown, PA
West Chester, PA
Leo did a great job. He provided me with options and prices. Made helpful suggestions and provided good information about the repair. Thank you for your help. Linda
- Linda White
West Chester, PA
Leo did a great job, he was friendly, explained the issues, offered us 2 options & fixed our problem. I would recommend Leo & precisions doors…..
- John Golding
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Technician: Leo Cornelius III
Broomall, PA
My experience with Precision was a very positive one. It began with Beth, who answered the phone. Ever so pleasant and efficient, she was able to schedule me for same day service for my problem. She explained the visit fee and gave me the name of the service technician. She also answered any questions I had. Leo, the service technician, was scheduled to come between 1 and 3. He called earlier and asked if he could come at 12:15. He was prompt, courteous and eager to answer my questions so that I could understand what happened to the opener. He showed me a problem he noticed with my springs and cables (23 years old) which were headed for breakage (even I could see that) and gave me several options to defer the breakage. I am totally satisfied with the service Precision performed and would recommend them.
- Joan
Springfield, PA
A on-time, friendly, and competent technician came and fixed my garage door in less than 20 minutes.
- Jim McKnight
Malvern, PA
Honest, Fair & Dependable. Use these guys for your garage door!
- Dirk and Lizzy Stribrny
Norristown, PA
Leo was very efficient and explained everything clearly. He was very professional and worked diligently to complete the project in a timely fashion. I would like to get another remote to open the door if possible.
- Phil Connor
Downingtown, PA
Hi Keith - Today, Thursday, 12/11/2025, I brought my trash cans in and went to close my garage and heard some squeaks and it wouldn't close. I called your business and spoke with Beth who was able to fit me in on your busy schedule which my family and I are very grateful for. Leo called said he'd be out in 20 minutes which he was. Leo was extremely professional. He said he has been doing this job for over a decade. He showed and explained to me fully my options. I called my wife Sharon at work and also my neighbor who is handy Federico came over and Leo explained the options again in full taking the time for us to make the right decision. Leo got the job done in a timely manner and showed me the work performed. I couldn't ask for more. I will recommend Precision to all my neighbors and friends. Thanks again and Happy Holidays. Joe Tatum
- Joe Tatum
Pottstown, PA
Mr. Cornelius was prompt,courteous, explained options, worked Diligently, invited us to see completed task, explained work completed, very professional.
- Thomas Dobroskey
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Technician: Leo Cornelius III
Chadds Ford, PA
Easy to schedule appointment. Representative called ahead of time and was early for appointment. Keith was very knowledgeable, fixed issue in timely manner and explained options if replacement of old garage door opener and components is warranted. Easy to work with and excellent communicator.
- Andrew Downer
Oxford, PA
LEO WAS EXCELL ENT
- Bob Diemedio
West Chester, PA
Professional
- Patrick Inverso
Thornton, PA
Service was outstanding, I called at 9AM and Leo showed up at 12:00. He replaced the spring and cables and got me back up in no time. Will call them when we are ready to replace the door. Thanks for the service! Bill D
- Bill Day
Kennett Square, PA
Leo was outstanding. Exceeded my expectations.
- Frank Olszewski
Coatesville, PA
I have been using Precision Door Service for over 8 years in our Chester County and Bucks County properties. They are always friendly, on-time and professional. We just had an older motor replaced in our Coatesville house. They arrived on time and explained everything to me and even setup the connection on my phone for me. If anyone needs any type of service to their garage doors, I highly recommend them.
- Chuck Miller
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Technician: Leo Cornelius III
Doylestown, PA
Leo was a true professional. Very informative, friendly, and honest with his appraisal of our situation and solutions.
- Christopher G Kelly
Exton, PA
Leo was very friendly and discribed what was wrong and options available. Very pleased.
- Barbara Batt
Oxford, PA
I was pleasantly surprised to have met Leo. I very courteous, people skilled representative of your business. He introduced himself, asked how could he help us, listened and then explained options. I was clearly comfortable with his reserved quiet demeanor and the knowledge he afforded me regarding our pathways towards solving our garage door needs.
- Barry Story
Malvern, PA
Professional, efficient, good communication, will recommend to family and friends.
- Anne
West Chester, PA
Leo was my technician. He was knowledgeable and very specific. He was so good he upselled me and I ended up purchasing a new motor , wheels , and other stuff to make it all work. He did it so quick and the post the job also explained it all well in terms of setting the new key pads and controls. I would suggest to my friends that own there own businesses to hire a guy like Leo and with that type of thing experience mad great customer experience you can train him on any other skill set. Keeper and deserves a raise.
- Rebecca Harold
West Chester, PA
Great service. Leo was very personable and happy to explain the door issues
- Renee Quinn
Malvern, PA
Installed two new safety sensors for one garage door. Thoroughly explained options and evaluated current in- house equipment. Completed work satisfactorily and efficiently. Handled all related questions about the opener.
- Michael Sabrick
West Chester, PA
Excellent service.Recommend Precision very highly.
- Jon Heisman
West Chester, PA
This is the second time I’ve used Precision and wouldn’t hesitate to recommend them. Leo did a terrific job explaining issues and solutions. Happy customer again !!
- Michael Kozitzky
Malvern, PA
Excellent work always by Leo
- Narayanan Nittur
Downingtown, PA
Leo was excellent. Explained everything. Work was well done and completed quickly
- Jeff Mandell
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Technician: Leo Cornelius III
Garnet Valley, PA
1st, Leo, my Tech today did a fantastic job. I purchased a new garage door opener as my current one was having issues after 15 years. The new unit runs smoothly and is a lot quieter. Very easy to operate. In addition to doing a wonderful installation technically, Leo also took special care to make sure all components were installed without damaging any existing wall or trim areas. He was extremely careful and neat with every detail, and personally; this is important to me. This describes Leo the 'Tech'. Leo the 'Person' was even better. He was kind, thoughtful, took the time to explain everything and was just a delight to work with. I've had Precision Door do all of my Garage Door work over the years, and I've always been happy with the outcome and the work done. I have also been pleased with each and every Tech. I can't say enough great things about the company and its employees. Thanks once again to Leo, and to Precision Door. The Very Best!
- Glenn Folsom
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Technician: Leo Cornelius III
Yardley, PA
Responded same day to fix broken springs... Leo was fantastic...
- Stephen Turbyfill Sr
Coatesville, PA
Fantastic & Prompt Service. I would highly recommend Precision Garage Door Service to Everyone.
- Rose Singleton
Garnet Valley, PA
I’ve used you before and was very happy so I took another chance & couldn’t be happier. My technician was polite, professional & explained everything precisely. Plus I used your online page to make an appointment which was very easy & the availability was perfect.
- Karen Mariniello
Office: (215) 362-2713
701 West Fourth Street
Unit B
Lansdale, PA 19446
License
License #120079


Leo did a great job and got the job done quickly. Highly recommend!
- Mike