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Garage Door Tune-Up and Inspection Packages from Discount Garage Doors (Up to 59%Off). Three Options Available.

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Extra 20% off, up to $1,000,000
Promo Code SAVE. Ends 6/18.
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Technicians perform preventative maintenance such as tightening screws & lubricating tracks; make suggestions if more drastic work is needed

Customer Reviews

100% Verified Reviews
All reviews are from people who have redeemed deals with this merchant.
Barbaratop reviewer
13 ratings9 reviews
February 5, 2021
Excellent! Right on time! Very helpful and answered all of my questions!
1 ratings1 reviews
October 20, 2020
Joe was great. Would definitely recommend
2 ratings2 reviews
December 30, 2020
Great job
2 ratings2 reviews
July 14, 2020
The technician was great and found the solution quickly and transparently, without pushing for any upsells. Would recommend!
3 ratings2 reviews
March 22, 2020
Great engineer, friendly and knowledgeable
5 ratings4 reviews
February 5, 2020
Did a great job of keeping me informed about progress and concerns. Diagnosed problem and resolved it. I’d use them again.
1 ratings1 reviews
January 7, 2020
In a word EXCELLENT ! I called on a Saturday after purchasing DGD Groupon on Friday. 12/27/19. The person answering the phone was courteous, and polite. After putting me on a very short hold she came back to say the next available appointment would be for December 31. My technician arrived ahead of time and was very helpful and courteous. I have recommended DGD to my neighbors.
Johntop reviewer
23 ratings8 reviews
January 2, 2020
Dave was friendly and very informative and did not try and sell me anything I didn’t need. Garage door works much better and is much quieter. Would definitely recommend.
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About This Deal

Choose Between Three Options

* $39 for a garage door tune-up and inspection ($70 value) * $95 for a garage door tune-up and maintenance with roller replacement ($235 value) * $79 for a garage door tune-up and inspection with key pad installation ($185 value)

Garage-Door Openers: Signaling Security

Learn a little about the technology inside the little remote in your car with Groupon’s examination of garage-door openers.

In 2012, garage doors throughout southeastern Connecticut mysteriously seized up. The culprit? A military submarine base.

Annoying as it may have been, there was nothing sinister behind this pattern. Rather, it was simply a side effect of the way all remote-entry garage-door systems are designed. Each time you open or close a garage door, the remote and the receiver inside have a brief conversation in code—a conversation that happens to be conducted via radio signals over the airwaves. The unfortunate homeowners in Connecticut eventually learned that the signal emitted from the submarine base’s radio-communication system shared a frequency with their garage-door systems, and the more powerful military signal drowned out the information their remotes were trying to transmit.

The codes transmitted by garage-door remotes have gotten far more complex over time. As early as the 1960s, burglars learned to use radio scanners or “code grabbers” to pick up the code when the homeowner used it to open the door; they could then re-transmit the code to gain entry themselves. In response, most remotes today use rolling codes that can generate billions of combinations.

This is possible because each time a message is sent between remote and receiver, each part of the system also selects and stores a new code. Those codes will always be in sync because each has been programmed with the same pseudo-random number generator—that is, a formula that produces a sequence of numbers that would appear random to anyone not possessing the formula. (Beware, however: it is possible to desynchronize the system by pressing the remote button out of range of the opener more times than the system’s built-in tolerance for error will permit.) Once this is done, the remote and receiver are ready to kick the system’s motor into gear and help you begin or end another day on the road.

Fine Print

Promotional value expires 120 days after purchase. Amount paid never expires. Appointment required, same day appointments accepted. Valid only within 100 miles of zip code 34604, 32805 and 33612. Limit 1 per person, may buy 1 additional as gift(s). May be repurchased every 30 days. Limit 1 per visit. Limit 1 per household. Must use promotional value in 1 visit(s). Valid only for option purchased. All goods or services must be used by the same person. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

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