FAQ
Garage Door Questions, Answered — Page 8
More in-depth answers from Denver’s G Brothers Garage Doors. Tap any question for the full guide, or use search to jump straight to a topic.
Products & Upgrades
Products & Upgrades questions
What does it mean when my LiftMaster opener blinks 4 times?
Four blinks on a LiftMaster opener means the safety sensors are misaligned or blocked.
Read answerProducts & UpgradesWhat do the blinking lights on a LiftMaster opener mean?
The LiftMaster work light blinks a specific number of times to signal a fault.
Read answerProducts & UpgradesWhat do the flashing lights on my LiftMaster garage door opener mean?
LiftMaster and Chamberlain openers flash a two-part diagnostic code: a number of UP-light flashes, then DOWN-light flashes.
Read answerProducts & UpgradesWhy won't my old remote work with my new LiftMaster white learn button opener?
LiftMaster openers with a white learn button use Security+ 3.0, a Bluetooth-based system introduced in 2025 that is incompatible with every remote made before 2025.
Read answerProducts & UpgradesCan I use a Meross MSG100HK with a Genie or Chamberlain opener for HomeKit?
Yes.
Read answerProducts & UpgradesDoes myQ still charge a monthly fee for Amazon Key In-Garage Delivery?
No.
Read answerProducts & UpgradesWhat are the best myQ HomeKit alternatives in 2025?
Chamberlain dropped native HomeKit in 2023.
Read answerProducts & UpgradesHow does myQ in-garage delivery work and is it secure?
myQ in-garage delivery lets Amazon drivers place packages inside your garage.
Read answerProducts & UpgradesDo I need a myQ Smart Garage Hub if my opener already has Wi-Fi?
No.
Read answerProducts & UpgradesWhy did myQ block third-party apps and what are the alternatives?
Chamberlain shut down third-party access to the myQ API in September 2023, blocking integrations with Home Assistant, SmartThings, and homebridge-myq.
Read answerProducts & UpgradesWhat is the difference between myQ and Genie Aladdin Connect?
myQ (LiftMaster/Chamberlain) and Genie's Aladdin Connect both let you monitor and control your garage door from a phone.
Read answerProducts & UpgradesIs myQ and LiftMaster myQ the same ecosystem?
Yes.
Read answerProducts & UpgradesIs the Northwest Door Infinity Classic 7800 a steel or aluminum garage door?
The Northwest Door Infinity Classic 7800 is an aluminum garage door.
Read answerProducts & UpgradesWhat styles and colors does the Northwest Door Modern Classic 7500 come in?
The Northwest Door Modern Classic 7500 offers more than 30 panel and window design combinations using a heavy-duty aluminum stile-and-rail frame.
Read answerProducts & UpgradesIs the Northwest Door Therma Tech 3500 an insulated garage door, and what is its R-value?
Yes, the Northwest Door Therma Tech 3500 is fully insulated.
Read answerProducts & UpgradesNylon vs steel garage door rollers: which should I choose?
Nylon rollers run much quieter, need no lubrication, and resist rust, so they are the better choice for an attached garage.
Read answerProducts & UpgradesHow does a percentage wind/hail deductible work on a Colorado homeowner policy?
A percentage wind/hail deductible is calculated as a percentage of your home's insured dwelling value, not a flat dollar amount.
Read answerProducts & UpgradesWhat is the difference between photo-eye sensors and a sensing edge on a garage door?
Photo-eye sensors project an infrared beam across the door opening and reverse the door if anything breaks the beam before contact.
Read answerProducts & UpgradesWhat is the difference between polyurethane and polystyrene insulation in a garage door?
Polyurethane is injected foam that bonds to the steel skin, giving R-12 to R-18 and a stiffer panel.
Read answerProducts & UpgradesCan I connect a Ryobi garage door opener to a smart home hub?
Ryobi garage door openers use Ryobi's own app, not myQ or Aladdin Connect.
Read answerProducts & UpgradesDoes Security+ 3.0 work with ratgdo or Konnected BLAQ?
No.
Read answerProducts & UpgradesTwo single garage doors vs one double door: which is better?
Two single doors give you backup if one breaks, a support post between them, and cheaper spring repairs, but a center post limits how wide a vehicle you can park.
Read answerProducts & UpgradesCan I power a garage door opener with solar panels?
Yes, you can run a garage door opener on solar power.
Read answerProducts & UpgradesWhat are the standard garage door sizes for a house?
Standard single garage doors are 8, 9, or 10 feet wide and 7 or 8 feet tall.
Read answerProducts & UpgradesCan I repair a dent in my steel garage door, or does the panel need to be replaced?
Small dents under 2 inches can often be pushed out from inside the panel using the heat-and-cool method or a rubber mallet.
Read answerProducts & UpgradesSteel vs aluminum garage door: which is better for a Colorado home?
For most Front Range homes, steel wins.
Read answerProducts & UpgradesSteel vs wood garage door: which should I choose?
Choose steel for low upkeep, lower cost, and better insulation values.
Read answerProducts & UpgradesWhat makes a triple-layer insulated steel garage door better than two-layer?
A triple-layer door has polyurethane foam injected under pressure between two steel skins, bonding all three layers permanently.
Read answerProducts & UpgradesWhat are the pros and cons of a vinyl garage door?
Vinyl garage doors resist dents, rust, and rot, need almost no upkeep, and handle moisture well, which makes them a tough, low-care choice.
Read answerProducts & UpgradesWhat is the difference between a wall-mount and a ceiling-mount opener?
A ceiling-mount opener drives a trolley along a rail above the door, requiring 10-12 inches of headroom.
Read answerProducts & UpgradesWhat is ratgdo and how does it work with a garage door opener?
ratgdo is an open-source Wi-Fi board that wires to the data port on LiftMaster and Chamberlain Security+ 2.0 openers.
Read answerProducts & UpgradesWhy is my garage so hot in summer?
A hot garage in summer results from heat absorbed through a dark, uninsulated door, heat radiating off the concrete floor, poor ventilation, and lack of air movement.
Read answerCommercial
Commercial questions
Can you handle custom or oversized commercial installs?
Yes. We engineer and install custom oversized commercial doors others turn away: high-lift, full-vertical-lift, and extra-wide or tall openings.
Read answerCommercialCommercial garage door maintenance: how often?
How often does a commercial garage door need maintenance? It depends on cycle volume. Here is the schedule and what a preventative maintenance plan covers.
Read answerCommercialCommercial vs residential garage doors explained
Commercial vs residential garage doors: how they differ in build, cycle life, springs, operators, and code, and which one your building actually needs.
Read answerCommercialDo you offer commercial garage door services?
Yes, we offer commercial garage door services across the Denver metro: install, repair, fire-rated and custom doors, maintenance plans, and 24/7 emergency.
Read answerCommercialDo you offer emergency commercial garage door service?
Yes. We run 24/7 emergency commercial garage door service across Denver, fixing most stuck or unsecured doors on the first visit with stocked trucks.
Read answerCommercialDo you repair rolling steel doors?
Yes, we handle rolling steel door repair across Denver: jammed curtains, broken barrel springs, worn guides, bottom bars, and operator faults.
Read answerCommercialDo you service loading dock doors and levelers?
Yes, we service loading dock doors and levelers across Denver: dock doors, seals, bumpers, and mechanical and hydraulic levelers as one position.
Read answerCommercialHow fast can you minimize commercial door downtime?
We minimize commercial door downtime with 24/7 dispatch, stocked trucks for first-visit fixes, and maintenance plans that stop most failures early.
Read answerCommercialWhat are fire-rated commercial doors and do I need one?
Fire-rated commercial doors close automatically to slow fire spread at rated walls. Here is how they work and where the building code requires them.
Read answerCommercialWhat are high-cycle garage door springs?
High-cycle garage door springs are heavy-duty torsion springs rated for far more cycles, sized for busy commercial doors that fail standard springs.
Read answerCommercialWhat is a commercial overhead door?
A commercial overhead door opens upward and stores overhead. Here are the main types, how they work, and how to pick the right one for your bay.
Read answerCommercialWhat security options exist for commercial garage doors?
Commercial door security spans heavy locks, rolling steel curtains, sensors, access control, and tamper-resistant operators. Here is how to layer it.
Read answerCommercialWhat types of commercial warehouse doors are there?
The main commercial warehouse doors are sectional, rolling steel, high-speed, fire-rated, and dock doors. Here is how each works and which fits.
Read answerCommercialHow fast must a commercial fire door close to pass a drop test?
Under NFPA 80, a fire-rated rolling steel door must close at 6 to 24 inches per second during a drop test.
Read answerCommercialHow much does a commercial garage door cost?
Commercial garage doors cost $1,000 to $10,000 or more installed, depending on type and size.
Read answerCommercialHow do I prevent commercial garage door downtime and keep operations running?
Schedule preventive maintenance every 3 to 6 months depending on cycle count, inspect safety devices monthly, and keep a spare parts kit on site for common wear items.
Read answerCommercialDo I need a building permit for a commercial garage door in Denver?
Yes.
Read answerCommercialWhat is a commercial jackshaft operator and does it need a separate lock?
A commercial jackshaft operator mounts on the wall beside the door and turns the torsion shaft directly, instead of pulling a trolley along a center rail.
Read answerCommercialWhat is the difference between a commercial and a residential garage door opener?
Commercial openers are built for heavy doors, high daily cycle counts, and continuous operation under multiple users.
Read answerCommercialWhat is a high-speed fabric commercial door and when should I use one?
A high-speed fabric commercial door opens at up to 100 inches per second, five to eight times faster than a standard rolling steel door.
Read answerCommercialWhat are the most common problems with roll-up commercial garage doors?
The five most common problems are: coil drum wear, bottom bar damage, spring failure, operator motor failure, and guide rail damage.
Read answerCommercialDoes a rolling steel commercial door require ceiling clearance?
A rolling steel door needs minimal headroom because the curtain coils into a compact drum directly above the opening.
Read answerCommercialHow often must a rolling steel fire door be tested in Colorado?
Every fire-rated rolling steel door must receive a formal drop test once per year under NFPA 80.
Read answerStill have a question?
Call us and describe what your door is doing. We will tell you what is likely wrong and what it costs.