QMi Rolling Security Shutters in Maryland

QMi Security Innovations, based in Itasca, Illinois, makes rolling aluminum security shutters (AL8, XL, Qompact® and AL2), Qompact hurricane shutters, clear polycarbonate shutters (LX6 and TR4 Transparoll®), side folding grilles, stainless steel security screens and the HD1 high security exit door, for stores, banks, pharmacies, schools and homes. ADP Garage Door Repair is an authorized QMi dealer in Central Maryland: we install every QMi shutter, grille, screen and door, and we repair the QMi products already in place.

• 230+ commercial door jobs (all brands) completed since June 2020
• 80+ commercial door jobs (all brands) in the last 24 months
• 30 ft widest opening a QMi XL shutter covers

Counts come from our own Housecall Pro job records and cover all of our commercial door work, not only QMi products. Product facts on this page are from QMi’s website, spec sheets and warranties (qmiusa.com), checked November 2026.

Who makes QMi shutters

• A security manufacturer. QMi makes physical security products: shutters, high security doors, screens and grilles. It says its products protect more than 40,000 businesses and over 100,000 homes.
• Commercial and residential lines. The AL8, XL, LX6 and TR4 shutters, the side folding grilles and the HD1 door are made for businesses. The Qompact shutters are made for homes, and the AL2 and the screens are used on both.
• What QMi does not make. QMi’s line has no rolling steel service doors or overhead garage doors. For those, see our roll up door services.

QMi groups its line by what the opening needs: forced entry protection, storm protection, a clear view, or a door that cannot be cut or pried. These are QMi’s products and the sizes, controls and ratings it publishes.

From QMi’s product pages, FAQs and spec sheets (qmiusa.com), checked November 2026.

Product images: QMi (qmiusa.com).

Five questions settle most QMi orders. We measure the opening and go through them with you before anything is ordered.

1. Inside or outside? The AL8, Qompact and AL2 can go outside. The XL, LX6 and TR4 are for interior openings only, because they have no wind rating.
2. How wide? The AL8 and Qompact go to 19 ft 8 in. QMi says to use an XL shutter for openings wider than 20 ft, up to 30 ft. Side folding grilles have no set width, but QMi notes they get heavy to push past about 35 ft.
3. How much security? QMi says its standard AL8 covers about 85% of security needs. Level 1 (heavy duty) adds thicker slats in the most likely attack zones, reinforced rails and auto locking base slats on motorized units; Level 2 adds a heavy duty base slat for large spans. The AL2 is a light security, privacy shutter.
4. Do you need to see in? Punched AL8 slats, the LX6 and TR4 clear shutters and the Q-Clear grille style keep merchandise visible after hours.
5. Hurricane or storm protection? Choose a rated product: the Qompact Hurricane shutter, the AL8 or the stainless steel screens. The AL2, XL, LX6 and TR4 are not wind rated.

Manual, crank or motor

• Spring assist: push up and pull down by hand. QMi offers it on the AL8 and Qompact, and on the LX6 up to 110 sq ft.
• Crank pole or strap box: a low cost manual option. The AL2 runs only by crank pole, strap box or motor; it cannot be pushed up by hand.
• Motor: a key or toggle wall switch, a wireless remote, a low voltage battery (EZ) motor with little wiring, or app and voice control on residential shutters. The largest XL, LX6 and TR4 shutters use a jackshaft motor.
• Over a doorway: QMi’s AL8 egress option is a tubular motor with an emergency release device, so the shutter can be opened without power. QMi says it is code compliant in all 50 states for motorized shutters over exit doors.

Other choices

• Locks: base slat thumbturn (key or no key), slide lock, mid curtain lock, auto lock on motorized AL8, or the motor brake on motorized shutters.
• Box housing: 90° square, 45° or round, in 6, 6.5, 7, 8 or 10 in sizes on the AL8 (6 to 8 in on Qompact).
• Colors: white, ivory, beige, bronze, gray, clear anodized or black anodized, depending on the product. Custom colors cost extra, take longer, and carry a limited finish warranty on the AL8 and no finish warranty on Qompact.
• Side folding grilles: the header above the grille must carry 180 lb per linear foot with less than 1.5 in of deflection. QMi does not supply that header; it is built by others before the grille goes in.

From QMi’s product pages, FAQs and the AL8 spec sheet (qmiusa.com), checked November 2026.

Shutters and grilles from our commercial jobs. Our records rarely name the brand, so these photos and the counts at the top of this page cover all of our commercial door work, not only QMi products.

• Coverage starts on the later of the installation date or the day a commercial location opens.
• The shutter, grille and screen warranties cover materials; they include labor only when QMi or its authorized subcontractors did the installation.
• Finish coverage depends on following QMi’s maintenance and care instructions for coastal and non coastal areas.
• Claims must reach QMi in writing within 30 days of finding the defect.
• Not covered (AL8 warranty): residential use of a commercial product, faulty installation (unless QMi did the installation), damage from obstructions in the shutter’s path, scratches and other cosmetic marks, and sand or salt build up in the hinges when the coastal maintenance steps were not followed.

From QMi’s limited warranty documents for each product (qmiusa.com technical library), checked November 2026.

QMi gives three steps to keep its shutters running well: wash and rinse them at the beginning and end of every season, clear out any sand, debris or insects, and run them often.

QMi’s washing steps:

1. Roll the shutter down and wet it well with a garden hose.
2. Mix ¼ cup of Simple Green cleaner into 2 gallons of water.
3. With a soft bristled brush, scrub the curtain side to side. Work the soapy water into the ends where the retaining screws are, brushing up and down along the rails.
4. Roll the shutter up three slats at a time, applying soapy water to the inside of the curtain as it rolls up.
5. Leave it open for at least five minutes so the soap can loosen salt and packed in dirt.
6. Rinse the curtain as it rolls down, then rinse the box side of the curtain completely.
7. Run the shutter up and down several times while you rinse both sides. A spring operated shutter should be rolled up and down briskly.

From QMi’s Installation + Repair Services FAQ (qmiusa.com), checked November 2026.

Call us for new QMi security shutters, hurricane shutters, side folding grilles, security screens or an HD1 exit door, or for repairs to the QMi products you have: slats, locks, motors, switches, remotes, rails and springs. We install every QMi product and confirm the size, security level, controls and color for your opening before ordering. Estimates are free: call, or text photos of the opening or the shutter and its label. We are open 24/7, you get a firm price before any work begins, and the $45 service call is waived when we do the repair. See our security shutters, roll up door services, commercial door installation, our service area and all the brands we install.