About Diamond State Door

We at Diamond State Door company believe everyone deserves a door that shines.

With over ten years experience with garage doors in Delaware area, we are dedicated to getting our customers the value for their money. Offering the best warranties in the industry plus our unsurpassed service team will dedicate themselves to you immediate needs. With Diamond State Door you are our priority, not just a number.


Our sales team will assist you with all of your needs from hardware to style and insulation desires. Our competitive pricing is hard to beat plus we are guaranteed to match any written quote for any competitor.

delaware garage door repairsDelaware Valley Garage Door Services

  • Repair services
  • Spring repair on site
  • Replacement springs
  • Welding services
  • Gear kits for operators & complete rebuilds of most operators
  • Commercial and residential services available
  • Complete automation of garage doors
  • Key pads, receivers, loop detectors, remote monitoring
  • Installs of the “tricky” operators and doors
  • Hardware safety checks: springs rollers panels hinges bearings & pulleys


Delaware Valley Hollow Metal Door Services

  • Hollow Metal Doors & Repairsdelaware-hollow-metal-door-sales
  • Storefront Doors
  • Automated Doors – Swinging & Sliding
  • Custom Automated Locks
  • Closers
  • Full Service Hinge Replacement

10% Discounts for seniors, law enforcement, state employees



Local Service Areas By County

DE Kent, New Castle, Sussex | MD Cecil, Kent | NJ Gloucester, Salem | PA Chester, Delaware