How do garage door sensors work?

• <div><p>Garage door sensors work by using infrared beams to detect objects in the door’s path. One sensor sends a beam while the other receives it. When the beam is broken—say, by your car or anything else—the sensors signal the door to stop or reverse. It’s all about safety and making sure nothing gets trapped under the door. If they’re misaligned, the beam doesn’t connect, and <a href="https://www.angi.com/articles/how-does-garage-door-opener-work.htm">the garage door might stay open</a> or close regardless of obstructions. </p></div>

Do I have to have sensors on my garage door?

• <div><p>If you <a href="https://www.angi.com/articles/how-to-open-garage-door-manually.htm">open your garage manually</a>, you don’t need sensors. If you have an automatic garage door opener, sensors are required by law. The <a href="https://www.federalregister.gov/documents/2018/07/13/2018-14909/safety-standard-for-automatic-residential-garage-door-operators">federal law UL 325</a> mandates that all residential garage door openers in the U.S. must include sensors. Designed to prevent accidents and reduce the risk of entrapment, the sensors should be able to reverse the motion of the garage door within two seconds of detecting an obstruction. The sensors are there to keep you, your family, and your belongings safe from a door that might otherwise come down too hard or too fast. </p></div>

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Q: What are the alternatives to a driveway gate?

• <div><p>A traditional driveway gate isn&rsquo;t your only option when installing a barricade in front of your driveway. A <a href="https://www.angi.com/articles/types-of-security-gates.htm">security gate</a> like a swing gate, double swing gate, bi-folding gate, vertical gate, or pivot gate could work just as well as your driveway gate&mdash;if not better for your home depending on which qualities you&rsquo;re after. Like sliding driveway gates, many of these alternatives work with automatic features that simplify entering and exiting your property.</p></div>

Q: Is a garage door tune-up worth it?

• <div><p>Getting a garage door tune-up is worth it. Tune-ups are a form of preventative maintenance that help extend a garage door's lifespan and prevent dangerous issues, like worn springs or misaligned sensors. The cost to get a garage tune-up is far less than letting problems get out of hand and causing costly repairs&mdash;or worse&mdash;injuries.</p></div>

Q: Are vinyl or steel garage door rollers better?

• <div><p>In addition to being less expensive, nylon garage door rollers are actually much quieter than steel rollers. However, many homeowners find that they wear out prematurely compared to steel. In general, more expensive steel rollers are more durable. However, their nosiness can make them less than ideal for garages that are located beneath a home's bedrooms.</p></div>

Q: Do I have to have sensors on my garage door?

• <div><p>If you <a href="https://www.angi.com/articles/how-to-open-garage-door-manually.htm">open your garage manually</a>, you don&rsquo;t need sensors. If you have an automatic garage door opener, sensors are required by law. The <a href="https://www.federalregister.gov/documents/2018/07/13/2018-14909/safety-standard-for-automatic-residential-garage-door-operators">federal law UL 325</a> mandates that all residential garage door openers in the U.S. must include sensors. Designed to prevent accidents and reduce the risk of entrapment, the sensors should be able to reverse the motion of the garage door within two seconds of detecting an obstruction. The sensors are there to keep you, your family, and your belongings safe from a door that might otherwise come down too hard or too fast. </p></div>

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Verified Reviews for Garage Service pros in Sangerville, ME

*The Angi rating for Garage Service companies in Sangerville, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Garage Service needs.

*The HomeAdvisor rating for Garage Service companies in Sangerville, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Garage Service needs.

Last update on November 17, 2025

Reviewed in June 2025
Noah exceeded my expectations at a competitive price . Clear communication, and fast! His estimate was spot on and it was clean and professional work. Noah did a 60amp sub panel install for my new garage, and also wired in four new outlets in my basement as I only had one down there. Thanks...
Parker Electric LLC
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Reviewed in December 2023
I loved the first $20,000 project this company did for us. The two man crew involved us in every step and were very communicative. The office staff was very attentive and personable. so much so that we hired them to replace our roof and chimney. A crew of 11 men that didn't speak english showed...
Fowler's Roofing & Construction
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Reviewed in November 2023
Craig and his helper were very friendly and communicative. They did a very good job installing and staining board and baton siding and replacing the two swing-out doors at the front of my garage. There were a couple of issues to be fixed or adjusted, but they were taken care of without fuss. I...
Rider's Home Improvements
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Reviewed in November 2021
Called the morning after we contacted Angi. He set up an appointment for the next morning to review the job and provide a verbal estimate, that was on Friday morning. He made some suggestions for the project, installing a Checkpoint charging station in our garage. Said was a basic job would take...
Bolducs Electrical Contracting
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Reviewed in October 2021
Technician Robb Putek (COA 8043) arrived within the time specified. He was very friendly and professional. Robb inspected inside and outside of my home, letting me know where my problems were and what he could fix. He also let me know about problems he could not fix such as a garage door that...
Bug Busterzzz
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Reviewed in October 2020
AVOID AT ALL COST! Unbelievable what things were missing when delivery was made including 1 of 2 dressers filled with my wifes clothes and jewelry, a wood lathe, a band saw, 1 of 2 matching rocking chairs, an entire lodgepole pine queen bed, two high-end mountain bikes and more. The woodworking...
ProRelo, Inc.
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Reviewed in October 2020
My automated garage door assembly desperately needed to be replaced. I couldnâ t find a single company to return my calls. I submitted a request through Angies List and Andrew from Grand Enterprises called right away. He stopped by the house, diagnosed the problem and came back later to repair....
Grand Enterprises, LLC
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Reviewed in April 2019
Dave was great! Brought all of his own equipment and just needed my spigot. I have a small house and garage, both with vinyl siding and stairs with railings. He pressure washed every square inch and it's now glowing! I plan to hire Dave at least every other year to spiff up my house.
Davestar Powerwashing and Roof Cleaning
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Reviewed in July 2012
In less than a year, the garage floor had cracked from one end to the other. We waited a year for this company to actually come out and attempt to repair the crack. They squirted some material in the crack, which came out within 2 months. We notified our contractor again, and he told us this...
Tk & Sons Concrete Foundations Inc
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Garage Building Service

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Garage Door Installation and Replacement

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Lucas jones foster

Lucas jones foster

River View Construction Co.

River View Construction Co.

Bradford Home Services

Bradford Home Services

BrawnCo. Builders

BrawnCo. Builders

BL Builders LLC

BL Builders LLC

Henry Milligan Construction

Henry Milligan Construction

TD Architect

TD Architect

K.C. Renovations

K.C. Renovations

Strafford Window Manufacturing, Inc.

Strafford Window Manufacturing, Inc.

Acadia Post & Beam

Acadia Post & Beam

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