At Diamond Garage Doors, we pride ourselves on the level of customer support and expertise given to our customers. Here are just a few testimonials and reviews from former customers. We want to hear from you. Won’t you please take a minute to add your own comment. We read each and every one looking for any needed feedback.

Think of Diamond Garage Doors When You Need:

    Google Reviews

  • Garage Door Repairs
  • Garage Door Replacements
  • Have Broken Garage Door Springs (Torsion Springs)
  • Need an estimate for a New Garage Door
  • Need a New Garage Door Opener
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Diamond Garage Doors
Average rating:  
 176 reviews
by Joseph Shepherd on Diamond Garage Doors
Pleasant surprise!
City & State: Severn

Jon knows garage doors and openers! He quickly and expertly solved my problem and showed me how to DIY in the future. Great work and prices to beat any competitor. He made a chore a pleasure!

by Lori K on Diamond Garage Doors
Great Experience!
City & State: Google Reviewer

Had a great experience! Called on a Sunday and my garage door was fixed that afternoon at below the cost I was expecting! Will definitely be using this company next time I'm in need!

by Chris on Diamond Garage Doors
Great installer, extremely friendly and honest.
City & State: Google Reviewer

I have been using John for the last 10 years. He has installed 5 garage doors for me and they have been amazing. I got the Heritage 3000 which has an R valve of 9.3. SO MUCH BETTER then the non-insulated. I would highly recommend having John from Diamond Garage Doors replace and tune up your door. When my motors go, I will be calling them.

by Peggy Fitzmaurice on Diamond Garage Doors
garage door repair
City & State: Silver Spring MD

Emailed Diamond Garage Doors for a 2nd opinion. Jon called me a couple of hours later with a quote much less then Sears. Jon came out same day and replaced only what was needed. Saved $300.00. We will definitely call them to put in a door opener in our other garage.

by Jim Hobbins on Diamond Garage Doors
Superb Work, Rock-bottom Price!
City & State: Potomac, MD

Jon is simply the best! He kept me informed about his forthcoming visit, and when he got here he was careful about making sure the car parked in the garage was protected. He predicted he'd need no more than 45 minutes, and he was true to his word. He spent a little more time instructing me how to lubricate our doors annually. And then he presented the bill, which was simply too low.

by Art Campbell on Diamond Garage Doors
Excellent Job
City & State: Ellicott City, MD

Jon did an excellent job and gave me a running dialog on what he was doing and what I should do for maintenance. One could see he knew what he was doing, no wasted motions, and my broken spring is history and my door works smoother than ever. He even thought to ask about programming my SUV to work as a door opener; it works! I will not hesitate to recommend him. He even gave me an unasked for discount.

by Sheeba Mathew on Diamond Garage Doors
Excellent Customer Service
City & State: Silver Spring, MD

I called John about our garage door being stuck and will not open. He told me it could be the spring, but wondered if i could send him a picture. I send him a picture of the garage door and springs and he told that it was the spring. He asked if he could come in the morning to fix it, because he has some prior commitments. I said that we have to go to work and the car is stuck in the garage. He said let me see and he told me that he could be free after 11:30pm., is that late or he could come by 7:00am. I told him that night time is good and he came to my house at 11:45 and fixed the garage till 12:45pm. He did not charge extra or anything and he did an excellent job. John is the owner of the company and his customer service is excellent.

by Ahmed H. on Diamond Garage Doors
Spring into action on a garage door repair
City & State: Springfield, VA

My spring snapped on my garage door. Diamond Garage Doors was there that day (within 4 hours of my call) and replaced the spring. Jon knows his stuff and explained the how and why. You cannot ask for better service when you have a repair.

by Ed & Sherry on Diamond Garage Doors
Professional, Fast, Reliable
City & State: Woodbine MD

Use this company!! They were referred to us by our insurance company. John came out at the end of his day, kept us informed of his progress through rush hour traffic, and promptly gave us an accurate estimate. For future prevention, John told us the two reasons our door may have this problem plus advised us on best way to maintain the door mechanisms. We could not be happier! The cost was a bit lower than we expected and was within the given estimate. We have advised our neighborhood of the wonderful service and will keep Diamond on our list for future work.

by Jas Singh on Diamond Garage Doors
Great job
City & State: Silver Spring, Maryland

I broke my garage door Torsion and Brackets, call multiple companies for estimate and all of them were asking price, end up calling Diamond Garage Doors which was best thing I did. They were on time and did a great job. Price was reasonable and my garage door works like new.. I will definitely recommend Diamond Garage doors to my family and friends.

by Chalaem on Diamond Garage Doors
City & State: Fort Washington MD 20744

Honesty and intriguty in business nowadays if difficult to find. John earned our family trust to give us the best service at the right price.

by Melanie on Diamond Garage Doors
City & State: Ashburn, VA

Matt is fantastic! Very kind and helpful. Thank you for all your help.

by Fagnol B. on Diamond Garage Doors
Happy Customer
City & State: Silver Spring, MD

I picked Diamond from a garage door manufacturer's website because of its proximity to my zip code. I like to support local businesses. And just 2 days after my initial call, today December 9th, I met with Jon about replacing my house 30 year old garage door. I found him to be a no non-sense straightforward guy who put me at ease immediately. No upselling, no gimmicks! He tells you exactly what you need and immediately offer the best possible price...upfront. I did not hesitate to schedule my installation for Monday the 12th, deciding to move forward without the 2nd estimate I had already scheduled with another company. I knew it wasn't necessary because it was easy to recognize that he is the real deal. Why? No required deposit! He wants to get paid after the job is completed. I believe that policy is indicative of his assurance that I was not going to find a better company or a better price should I choose to continue to shop around! And based on my past experiences I can say with confidence that Diamond Garage Doors is a world apart from many other garage door companies I have dealt with in the not so distant past that have unscrupulously jack up prices because they thought that I didn't know or had no way of knowing how much things truly cost. I was so pleased with my encounter with Jon that I decided to go on a limb here and write this review even before my door got installed next Monday! I will update if anything changes but I don't expect any unpleasantness!

by Kathy L. on Diamond Garage Doors
City & State: Silver Spring, MD

John put in a new garage door for me. He is most professional and competent. I am a happy customer.

by Pat R on Diamond Garage Doors
Clearly Knows His Stuff
City & State: Fairfax, VA

Cannot say enough about Diamond Garage Doors. Jon clearly knows his stuff. I got a good feeling when talking with him over the phone and things just got better once he came to do my repair. All works great and I highly recommend him and will use him again as needed.

by From Angie's List on Diamond Garage Doors
Polite, Professional, Responsive
City & State: Bowie, MD

Jon has been polite, professional, responsive and reliable. He offers advice on the phone and comes out if we aren't able to fix the problem ourselves. He's been a real pro and a pleasure to work with!

Description of work:

We purchased the garage door from Jon in 2014 (which he installed) and he came back today for a service call.

by Al S. on Diamond Garage Doors
City & State: Bowie, MD

Jon is awesome! I had a bad sensor, and he came out and took care it in a matter of minutes and tuned up my doors. He did not try to oversell me. He is completely trustworthy and I will never use the big stores again. I will always use Diamond!

by Mary Beth Lerner / Angies List on Diamond Garage Doors
Was Helpful, Explained Everything
City & State: Ashton,MD

Fixed garage door that wasn't opening properly, did maintenance on both doors -- applied oil, told me why the first door wasn't working properly (which was helpful), and told me that if i needed a tool to fix part of the door, just give him a call.

Member Comments: He did a good job, was helpful, explained everything he was doing so I understood why he was doing it, and gave me some good tips on maintenance of my garage doors going forward. It went well!

by Dina Davies on Diamond Garage Doors
City & State: North Potomac,MD

Jon Diamond went the extra mile to make sure his customers are happy. He is extremely responsive, affordable, and very accommodating.

by Jennifer Vranas on Diamond Garage Doors
Great With Communication
City & State: Ashburn,VA

Took my call in the evening. Had me text him a picture of the garage door and fit me in the very next day. Was very great with communication explaining everything to me and letting me know what was going on and why he needed to do what was needed

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