If you hire this pro, you’re covered by a money-back guarantee. Learn more
If you hire this pro, you’re covered by a money-back guarantee. Learn more
About
Diligent Overhead Door LLC, based in Elma, proudly serves Western New York with professional garage door repairs, installations, openers, and maintenance. Locally owned and operated, we offer quality workmanship, honest service, and fair pricing. free Eatimatea
Overview
Hired 44 times
Serves Elma, NY
Background checked
5 employees
6 years in business
Business hours
Sun8:00 am - 7:00 pmMon8:00 am - 7:00 pm
Payment methods
This pro accepts payments via Cash, Check, Credit card, PayPal, Square cash app, and Venmo.
Services offered
Project type
Garage door material
Aluminum
Steel
Vinyl
Wood
Garage door mechanism
Sectional roll-up
Other
Projects and media
Projects and media
Reviews
Customers rated this pro highly for work quality, responsiveness, and professionalism.
Exceptional 5.0
51 reviews
5
98%
4
0%
3
2%
2
0%
1
0%
Your trust means everything to us. Learn about our review guidelines.
Read reviews that mention:
Steven k.
Aug 16, 2025
•
Hired on Thumbtack
John is one of the most honest contractors I have worked with. He listened to my needs and tried to fix my garagedoor motor before replacing it.
Details: Repair • Motor opener • Vinyl • Home
Garage Door Repair
Cassandra M.
Jun 2, 2025
•
Hired on Thumbtack
John with Diligent Overhead Door was indeed diligent in getting our garagedoor back in working order! His work quality was excellent, he was very responsive on Thumbtack as soon as my estimate inquiry went out, he was the first of other competitors to come out to help us, he was punctuality (early) for the appointment time, and he was very affordable! Thank you so much!
Details: Repair • Other parts of the system • Aluminum • Home
Garage Door Repair
Steve S.
Jul 10, 2025
•
From Google
Our garagedoor wouldnt close all the wayI called John at Diligent Overhead Door. He called back right away and stopped by the next day. The repair was done right away and very reasonable. I recommend Diligent for door repair.
Brandon T.
Jul 7, 2025
•
Hired on Thumbtack
Very kind and professional. They did a great job replacing our busted opener. Would definitely recommend them
Details: Motor opener • Home
Garage Door Repair
Keri L.
Jul 29, 2025
•
From Google
John and his wife are excellent to work with. I found their number by chance just while COVID was coming to end. John has got to be one of the best people Ive ever hired for a job. He was honest, on time, affordable, and self sufficient. I saved his number in my phone and now 3 years later- I needed him again for my second garagedoor. Sent a message double checking it was still him and he was out at the house by the end of the week. Not one had changed. He was on time, reliable, knowledgeable, and knew right what the problem was. Truly went above and beyond! After the job- we chatted for a few moments because him and his wife are just great people!
Credentials
Background Check
John Zappia
FAQs
What should the customer know about your pricing (e.g., discounts, fees)?
Flexible, we provide discounts for this who serve “Military- First Responders” and more we believe our skills can be used to not only repair but can help our customers with the challenges of a broken garage component.
What is your typical process for working with a new customer?
Developing a trusted working relationship.
Asking them specifically what it is they want to accomplish. Provide them with excellent service.
What education and/or training do you have that relates to your work?
I’m a trained certified, licensed & insured garage door technician and national home inspector. I have been replacing garage door openers for customers of Big Box stores for years. My Primary occupation is information technology for 25 years. I hold many technical certifications in Networking Architecture and Security. I have studied industrial mechanics and automation. I hold an electronics degree. I’m a certified garage door and opener technician see diligentdoor.com/certification
