commercial and residential garage door Rockville Maryland

Rockville Maryland Garage Door
Sales – Repair – Installation – Service - Maintenance


Diamond Garage Doors serves residents and businesses with all their garage door needs throughout the Rockville Maryland area. We repair all types of garage door needs and sell and install new garage doors and accessories.

A broken garage door can be the result of years of wear on your door mechanisms or the sudden break of your door or door opener hardware. Whatever the cause, a malfunctioning garage door can seriously affect your schedule and your garage security.

Our specially trained technicians handle a variety of garage brands, styles, and configurations. After arriving at your home, a Diamond Garage Doors technician will diagnose the problem and walk you through the options for fixing or replacing it. Our technicians make any necessary adjustments or replace broken parts to ensure the door is once again operational and secure. Our service goal is to complete repairs in a single day. Get your free estimate today.


Repair or replace the following garage door parts in Rockville Maryland:



  • Track Adjustment & Replacement
  • Torsion Spring Conversions
  • Rollers
  • Hinges
  • Garage Door Springs
  • Garage Door Openers
  • Door Weather Seals
  • Cables
  • Emergency Repair Services

New Replacement Garage Doors




Repairs and Maintenance


Annual garage door tune-up service help prevent emergencies. Our processional safety check includes track lubrication and track adjustments. Just as with other complex machinery, your garage door requires routine maintenance to ensure proper and safe operation. Doors need to work in a synchronized manner to raise and lower the door properly. Over time and different weather conditions doors do get out of adjustment. Such situations can cause premature breakage and an emergency repair need.

Our professional garage door technicians inspect your garage’s door panels, springs, sensors, safety release, hardware, track, and other necessary parts. Our trained and experienced technicians perform this inspection to ensure they’ve done their repair work correctly, and to identify any potentially troublesome garage mechanisms that could become serious problems. If a problem is identified, you will be advised of corrective options.


  • Test Down Force Pressure of Garage Door
  • Lubricate Garage Door Opener Chains and Sprockets
  • Garage Door Tune Up & Maintenance
  • Garage Door Rebalancing

  • Garage Door Opener Installation
  • Garage Door Off Track
  • Broken Garage Door Springs or Cables
  • Align Electronic Eyes

Diamond Garage Doors serves residents and businesses with all garage door needs in the Rockville Maryland area including those along Rt. 270 and 495/the Capital Beltway, Hungerford Drive, E. Jefferson St., Rockville Pike, Veirs Mill Road, Maryland Ave., Wootton Parkway, Dwight D. Eisenhower Highway, Falls Road, Darnestown Road, and Montross Road and more.

Satisfied customers reside in Rockville neighborhoods and surrounding areas such as Rollins Park, West End Park, New Mark Commons, Lakewood, the Rockville Town Square area, Woodley Gardens, Carlin, Westmore, and West End Park.



Customer Reviews


★★★★★ Carol Ensor - Rockville, MD
Jon actually called me to schedule the appointment which was great as I tend to be a procrastinator. He showed up on time and was very friendly and professional. He explained everything he was going to do and made a recommendation for me to replace the pulleys as they were the originals and were preventing the cables from running smoothly causing the doors to jerk as they went up and down. I am so glad I paid for this extra service as the doors run GREAT now!! (by the way, he only charged me for the pulleys and not the labor as he had to take the cables down anyway to do the tune up). The garage doors open and close so smoothly and quietly now. It is like having new garage doors. I was very impressed with the service and Jon and would definitely use him again. I would recommend him to anyone. So glad I got this work done.

★★★★★ Randi Caplan - Rockville, MD
It went great. Jon showed up on time and was very personable. He did a great job and I will definitely use him again. I strongly recommend his services to anyone needing help with garage door openers. He took the time to show me how to change the light bulbs and remote control batteries. He replaced rollers, lubricated hinges, checked garage door opener for wear.

★★★★★ T. L. Angie's List Reviewer - Rockville, MD
They went over the details about the look of the new garage door before ordering and what options we had. The work was done professionally and in the time frame that was specified. They were very honest, professional, and client friendly. Their price was approximately $200 cheaper than other estimates.