Commercial Door Closer Repair

First 30 days

Learn the common closer families, arm styles, backcheck settings, latch speed adjustments, ADA force basics, and when replacement beats repair. Build a simple service menu: adjustment, closer replacement, hinge tune-up, threshold repair, and emergency slam-stop visit. Buy a starter inventory of common closers, screws, sex bolts, drill bits, shims, and threadlocker. Create a one-page website targeting commercial door repair in your city, with photos of clean installs and a clear same-week service promise.

Days 31-60

Walk strip malls, medical plazas, daycares, restaurants, and small offices. Look for slamming doors, leaking closers, dragging thresholds, and doors that do not latch. Leave a card with the manager and email the property owner if signage lists one. Call local glass shops, locksmiths, and handyman companies offering to take overflow door closer work they do not want.

Days 61-90

Create maintenance packages for property managers: quarterly door checks across all units, discounted per-door pricing, and priority scheduling. Track every building, door type, closer model, and installed date in a basic CRM. Standardize quotes so you can price from photos. Add fire-rated door coordination and panic hardware referrals only after you are confident about code boundaries.

Typical operators report service calls around $125-$250 for adjustment-only visits and $300-$650 for closer replacement depending on hardware and access. A solo operator doing 8-15 jobs per week can gross roughly $2,500-$7,500 before overhead. Parts often run $40-$250 per door, with better margins on standard closers kept in stock. Costs are mostly vehicle, insurance, small hardware inventory, marketing, and callbacks if the door was misdiagnosed. Net margins commonly land in the 25%-45% range once routing and repeat property-manager work improve.

• Cordless drill and impact driver: $200-$500
• Quality drill bit and tap set: $75-$250
• Ladder and compact platform: $150-$450
• Common commercial closers inventory: $500-$2,000
• Screw, sex bolt, shim, and fastener bins: $150-$500
• Door pressure gauge: $50-$150
• General liability insurance: typically $600-$2,000/yr

Within two weeks, inspect 50 storefront doors in older retail strips and note obvious problems: slamming, oil stains, broken arms, slow latch, or taped-open doors. Walk in during slow hours, say you specialize in commercial door closers, and offer a fixed-price adjustment visit. Send the owner a photo, the risk, and the price. Follow up once. Your first customer is usually the manager tired of hearing the same door bang 200 times a day.