I recently had the experience of one of the springs failing on my garage door. [[HIGHLIGHT]]I reached out to Alert Door and they very quickly scheduled me for repair service within a few hours.[[ENDHIGHLIGHT]] The spring replacement was done very professionally and they also performed a review and update on a number of loose bolts and hinges on my door. I highly recommend Alert Door. They are good people who provide great service at a fair price. read more

They replaced my springs after one had broken. They also had done the previous replacement 12 years ago. They responded promptly and service showed up right on time. He also lubricated the door, which was loud and squeaky on opening and closing. Springs are not inexpensive these days, but the work was done well. read more

over many years, Alert Door has maintained garage doors at my home and my parent's as well. wonderful family- owned company!

We needed a new garage door opener. [[HIGHLIGHT]]I emailed Alert Garage Door Service and they replied promptly.[[ENDHIGHLIGHT]] We talked on the phone and made the arrangements. They arrived as promised and did an excellent job of installing the new garage door and then teaching me how to use it. Five stars, I would give ten if I could. read more

Today my garage doors were installed by Danny. I can't say enough about this company. [[HIGHLIGHT]]From Lynn in the office to a call from Jim to discuss my needs to my connection with Danny and the quote and the final installation.[[ENDHIGHLIGHT]] If there were 20 Stars that is what they'd get. GO ALERT DOOR SERVICE ...., you're the best!!!!! read more

Wow, this company (Alert Door Service) is the best. We discovered a broken spring with our Garage Door on a late Sunday afternoon. [[HIGHLIGHT]]I called for service and we had two professional gentlemen (Danny and Scott) arrive at our house Monday morning at 9:30am![[ENDHIGHLIGHT]] They were personable, friendly, and repaired everything in about an hour. They also inspected and secured every bolt, lubricated the Door, Motor, and all moving parts. We will definitely be referring family and friends to the exceptional services of Alert Door Service. Bill & Myrna W. Foster City, Ca read more

Quality of work and service was excellent from this family owned business. We got exactly what we needed to replace a very old door. Beautiful new door and they know their business to recommend the best in color and quality at a fair price. We will enjoy our new door for years to come. read more

Beyond fabulous. We needed a new garage door and opener for an extensive home remodel. [[HIGHLIGHT]]They were easy to work with.[[ENDHIGHLIGHT]] But here's where they stood out--we live behind a shared gate and they came by, several times, to sync our garage door opener so it would also open the gate. And when we had issues with the garage door openers closing the garage door, they replaced them. The service was beyond amazing. read more

I accidentally hit the garage door button when I was backing out of the garage and hit the door. Damage seemed to be minimal but you know how things go and I thought the worst! [[HIGHLIGHT]]I actually called the company that had installed the door first to fix the door but they kept saying they needed to check with the technician about scheduling and then never followed up, I had to call twice and then they said they couldn't get someone out for 3 days![[ENDHIGHLIGHT]] [[HIGHLIGHT]]I'm actually happy that happened now because I found Alert Door Service. From the initial phone call with Monique to Danny, who came to fix the door that day, service was top notch.[[ENDHIGHLIGHT]] Danny was so reassuring that it really was an easy fix and it didn't cost an arm and a leg. It's so nice to deal with a family owned business, they take better care of customers. I highly recommend Alert Door Service, Inc. for your garage door needs! read more

For most people, they don't think about their garage door torsion springs until one day they can't open their garage door to get their car out due to a broken torsion spring, and then this becomes an emergency and they would rush to find a garage door company to replace the torsion springs. It is often a couple years later that they realize the quality of this torsion springs replacement job when the spring breaks again. This was certainly the situation for me a couple of years back. I rushed to check Yelp and contacted Alert Door Service due to their so called reasonably good overall ratings. They replaced my torsion springs, and left me an invoice that said "One Yellow, One White" torsion springs with no description of the wire gauge, inner diameter and spring length. A short couple of years later (this includes the Pandemic years when nobody was going to work and thus garage door was not opened/closed daily), one torsion spring broke again. This time, I called a different garage door company. When I asked this company why the spring broke after such a short few years when my original springs lasted 16 years, the guy said because I had an unmatched pair of springs, the stronger spring was doing most of the work lifting the garage door, thus that one broke. Hence, I realized the quality of work that Alert Door Service did. read more

Local family run business is worth mentioning on yelp! They serviced our door fixed whatever was broken and their service is more than perfect. Very knowledgeable professional and friendly. These are the people to call for any of your garage door needs. Danny is continuing the tradition of this family business and he's the most knowledgeable of all! Highly recommend Alert Door. read more

We also decided to upgrade our garage door motor as part of this year's home improvement project. The one that came with the house when we bought it became unreliable. A couple of years ago, our garage door come off its rails and they were one of the few companies in this area that provide emergency services. I spoke with other companies with similar reviews and their pricing was comparable. The new motor is super quiet and I'll have to figure out how to sync it up with our phones. read more

See all

The very best! Just really great service, Danny was the friendliest guy, he diagnosed the issues, and then explained them clearly to me. And then he fixed the issues. Didn't try to upsell me, gave me suggestions of things to look for in the future, and little things about how to take better care of the equipment. Will do business again with them and would unreservedly recommend them to everyone, including my own friends and family. read more

They are great and knows their work well. They are prompt and every time they visited to fix the garage door we were happy.

Our old garage door opener finally needed replacement and Alert Door Service was recommended to me by a friend in construction. Lyn, Darlene, and Christina, in the office could not have been more helpful. The technician, Joe, was on-time, efficient, neat, and did a great job on the installation. He also provided helpful tips on maintenance...also, he's a 49er fan! BTW, the door works very well. Thank you, Alert, for the great job! read more

Very quick service. Diagnosed the problem immediately. Friendly service. Fixed within an hour.

I called out of panic for a disengaged garage door. A lady from Alert Door called back and stayed with me over phone, helped me fixed it myself in minutes, for no charge. [[HIGHLIGHT]]All the way along she was so friendly and encouraging.[[ENDHIGHLIGHT]] Definitely one of the highlights in my life experience. Out of respect, I'm propelled to write this review. Good people deserves best reviews at least :) read more

This company was referred to me and it was the best referral I have ever gotten! [[HIGHLIGHT]]Starting with Danny, he is the absolute best![[ENDHIGHLIGHT]] [[HIGHLIGHT]]His mom, Lynn, also helped in coordinating the guys to come out and repair my door opener.[[ENDHIGHLIGHT]] I was all ready to buy a new opener. Danny assured me, a small repair was all it needed. I will definitely use this company for any garage door issues I have or when a replacement is needed. [[HIGHLIGHT]]I can't say enough good stuff about this company!! Thank you all again so much!![[ENDHIGHLIGHT]] read more

Danny from Alert Door Service was an incredible help to us. We have two sliding garage doors (one disabled) that were installed decades ago, and one of them had multiple problems. Some companies that we called didn't even want to work on anything other than overhead doors, but Danny showed up and not only dealt with the aging hardware without any complaints, but figured out how to fix the numerous problems using what already existed. I'm sure most other companies would have insisted that we replace everything! Fast forward a couple months to now and everything is working better than when we originally moved in. Thanks again! read more

Quick response and same day service when available. Friendly staff. Good work for good price also. Highly recommend. read more

My first surprise was in how quickly Alert Door was able to come onsite to service our garage door. While all other companies quoted at least a week's lead time, Alert door sent Danny over the very following day. Oh boy and was Danny knowledgeable and quick! Danny fixed our garage door with the recommendation to use a belt drive opener for our low ceiling garage and installed it in little over an hour. He and Jay were very curt and pleasant to talk to. Would definitely recommend Alert Door and use them myself for future service. read more

I'm back one year later. This time a cable on our old garage door broke, and I called Alert Door Service again. I keep thinking that I'll need to replace the whole thing, but Danny reassured me that the door was in good shape. He installed a new cable and checked that everything was working well. So, we're back in business again for a very fair price. I highly recommend these folks. read more

Alert Garage Door helped us solve all our garage door problems. Easy to work with!!! Friendly, courteous, arrived on time & cleaned up. A great experience yesterday. The new opener is quiet - we had no idea how bad our old opener was - the motor was failing intermittently & we knew the final end was near. WHAT A GREAT GROUP OF PEOPLE TO WORK WITH!! read more

We had a little accident where our car accidentally ran into our garage door (note: the clutch pedal does not function as well as a brake pedal when trying to stop a car...). After doing some research, I decided to reach out to Alert Door Service to have them inspect/repair our door. I e-mailed photos of the damage and Darlene stated that she would have Danny come by the next day to perform the repairs. Danny and Jay came out exactly when promised to check out the door. Danny said that it wasn't too bad and that it should be an easy repair. He explained what he was going to do and he and Jay set to work. They finished it up in about an hour. Not only did they repair the damage, but they also inspected the door and door opener and performed some minor maintenance on them. Now our garage door not only works as well as ever, the garage door opener is running so much more quietly and smoothly than it has in years. It is seriously like having a new opener. I totally recommend Alert Door. Great people who do great work. read more

Our experience with contractors, or home repair. Just not very good. These folks made the who greeting, purchase, remove garage and installation was the easiest thing that we have done in a long time. It was such a relief in the whole process. I wish all my other household projects were as easy. Everything was professional, easy to do. Just easy! Don't bother looking at Costco, or other vendors. I had a bad experience with costco... RIght!! THese folks are the ones to go with.. read more

Very prompt and excellent service and reasonably priced. Also very considerate and responsive to homeowner's urgent circumstances.

I backed into the garage door which then would not close. I called Alert and the repair man was there within 20 minutes. Great and thorough repair job as will as tightening the hinges and oiling everything. The door is better than it was before I hit it, and I even got to the gym. Very fair price as well. read more

Alert was recommended to me from our neighbors. Their service was outstanding! The price quote for our new garage door was very competitive and their technician who installed the door (Danny) was extremely professional and personable. The work was done in a timely manner and Danny explained the various functions of the unit. Office staff (Darlene & Lynn) are great to work with...very helpful! I would not hesitate to recommend Alert Door Service!! read more

Absolutely great to work with Alert Door from start to finish - scheduling, communication and the work done at my home, all at a solid price. Alert diagnosed the issue, then explained and promptly fixed my Chamberlain Garage Door. Even advised me on some annual maintenance items I can easily do on my own in the future! Just fantastic. Highly recommend Alert Door Service based on this wonderful experience. Many thanks to the team at Alert Door Service. read more

I've used Alert Door Service several times over the last ten years, most recently to entirely replace my garage door opener. I would say the business is responsive....I have always been able to get service within 24 hours, but maybe some of that is luck. The home office was able to look up prior service calls and tell me how old my springs were (impressive). Their technicians always impress me as well trained. My most recent Tech, Joe, has been with them for three years. Joe went through several diagnostic steps before concluding that my 18 year old opener perhaps should be fully replaced. I agreed and asked if he minded if I watch him work and he said no problem. I enjoyed watching him meticulously do the steps I am sure he had done many times before. Several small steps were thoughtful and would lead to a professional outcome. I offered to help when it came to lifting the unit for bolting in, but he had a special device allowing him to do it single-handed (a stand that holds the motor until he can bolt one end.) He replaced our keypad and helped program the car remotes as well as configure the new door in the MyQ app. I had MyQ as an add-on device to my old opener (it basically connects your garage door to the internet and a phone app) but was pleased to learn that it is now incorporated in the new Liftmaster. The result was a very professional install and the price I paid was fair. I've heard the business is family owned and I appreciate that they provide such good service to the community and train-up and provide jobs to guys like Joe. Five stars I say!! read more

We've used Alert for twenty years--they do the best work, and come out the quickest. Their prices are fair and less than other companies; you can trust Alert. This is a true nice family business, and we hope to work with them again. They rate more than five stars, give them ten! read more

Just had Jim come over and fix our garage door in less than an hour. He replaced 3 rollers, lubricated the chain, sprayed all the joints, and installed a new keypad. Our garage door was also very noisy when rolling up and now it's quieter. I'm really happy with the service and will definitely call them in the future if anything else comes up with our garage door. Thank you Alert Door! read more

Alert Door Service, Inc - Changing the rollers - Garage Door Services Near Me - San Mateo, California

See all

My purse was stolen with my garage door opener, car key, address on my checks and my license plate number on my insurance card. I was so worried that the thieves would come to my house and steal my car from my garage. I called Alert Door Service and Darlene helped me and she is fabulous!! She sent out Joe within 1 hour and he not only reprogramed my garage door openers, but he fixed the outside keypad that has never worked in the 4 years that I have lived here. Their customer service, responsiveness and high quality service is outstanding!!! I highly recommend them to anyone!!! Thank you Darlene and Joe!! read more

We (accidentally) backed into our garage door... :( Called them yesterday late in the afternoon, and they were able to come in the morning today! Super friendly and knowledgable people who fixed our door without having to replace the entire thing!! Highly recommend!!! read more

We had a good experience with Alert Door in the past, but when the spring failed on a Saturday they had no one available until Monday and no recommendation for another company to provide service. Very disappointing. Found another company on Yelp that did the work for us, and at a significantly lower price (no additional charge for Saturday work). Would not recommend unless you can arrange for your door springs to break 9-5 M-F. read more

Great service! Jim was not only the most informed person about my garage opener of everyone I called, but also provided a quick fix at no charge. read more

We had an issue with our garage door opener, so called Alert based on all the positive Yelp and Nextdoor reviews, and we're very happy we did. Joe came out within a couple of hours and was very thorough, patient, knowledgeable, and friendly. He quickly diagnosed the source of the problem, explained it in easy-to-understand terms, and efficiently made the repairs. We'll definitely call on Alert for any future garage door-related issues! read more

Thank You for being so professional but also so personal and helping me both the fix my garage door but also assembled and free of worries!

These guys are the best, I was having a very difficult driveway gate and these guys did an amazing job dealing with the problem! They really went out of their way to help me. Forever thankful for this family run biz. read more

My overheard spring broke and snapped off the top panel of my garage door. Rather than replace the door outright, Jim was able to put it all back together. My broken garage door is now stronger than ever and feels 10 years younger. The other garage companies were flakey and just wanted to replace the door. read more

Alert Door Service, Inc - Before photo - Garage Door Services Near Me - San Mateo, California