A Minneapolis property manager stares at the maintenance budget and eyes the lobby glass, already cloudy from road salt. The cheap move looks obvious, hand a squeegee to a tech who is already on payroll. It rarely pays off, and a commercial window cleaning company minneapolis mn property teams rely on earns its fee for a reason. The real costs of doing it in house, the fall risk, the liability, the redo work, stay hidden until something goes wrong. This piece argues one thing, hiring a specialist beats sending your own staff up a ladder. None of that shows up on the first quote.
Vet The Crew Before You Hand Over Keys
Not every outfit that owns a squeegee belongs on your building. A real commercial crew carries general liability coverage, workers compensation, and technicians trained for work at height. The gap between that and a handyman with a ladder is the entire point. The cheapest bid on paper often becomes the most expensive one on site. Ask a few pointed questions before you sign anything.
- Are your technicians covered by workers compensation and general liability, and can you send the certificates? A good answer names the carrier and a coverage figure.
- How do your crews reach the third floor and above, and what fall protection do they use? A solid answer describes anchored rope descent or a lift, not an extension ladder.
- How do you handle hard water spots and post construction residue on glass? A real answer separates routine cleaning from restoration and prices them apart.
- What does your schedule look like across a full year in this climate? A strong answer accounts for road salt in spring and pollen in early summer.
Liability Lands On Whoever Sent Them Up
Here is the part the budget spreadsheet leaves out. When your own employee climbs to reach a second story pane and falls, the injury, the comp claim, and the lost hours all land on you. Hand the same job to an insured commercial window cleaning company minneapolis mn owners keep on retainer, and the exposure shifts off your books onto a firm built to carry it. Crews working well above the ground clip into what the trade calls a rope descent system, meaning a rope rig anchored to the roof instead of a ladder against the wall. OSHA requires building owners to have those roof anchors certified, and a serious contractor asks about yours before the first drop.
Falls Are The Hazard That Defines This Trade
Window work is dangerous in a way mopping a floor never is. In February 2026, Safety and Health Magazine put the toll at 844 fatal slips, trips, and falls on the job in 2024. Nearly 11 percent came from a fall of thirty feet or higher. Those are not abstract figures to anyone who has stood on a ladder in a gusty parking lot. The safety rule here is not negotiable. Nobody should be on a ladder or a rope at height without proper fall protection, and a reputable crew treats that as the floor, not the ceiling.
Streaks Come Back And So Does The Bill
A tech who does windows twice a year leaves streaks a dedicated crew would never sign off on. The call we see most often is a manager who saved a few hundred in spring, then paid a pro to redo the whole building by August. Cheap glass cleaner and a household squeegee leave a film that catches every angle of afternoon sun. Streaks show up the moment the light hits the glass, and by then the tenant complaints are already in your inbox. Redo work is not a discount, it is the same money spent twice.
The Ladder Risk Owners Rarely Price In
Most owners price the cleaning and never price the climb. Research in the CDC’s Morbidity and Mortality Weekly Report found ladders in 43 percent of fatal work related falls over the prior decade. That is why professional crews lean on anchored systems and lifts. Ladders turn up all over building upkeep, from gutter checks to sign repair, and plenty of facilities have quietly tightened every one of those policies. Window washing is where the exposure runs highest, though, because it puts a person at height on a wet vertical surface for hours at a stretch. Price that risk honestly and the outside crew stops looking expensive.
The Numbers Favor The Outside Crew
Run the full comparison and the in house shortcut falls apart. A specialist absorbs the insurance, brings the right rigging, and leaves glass that stays clear, while your maintenance team stays on the work only they can do. A professional window crew almost always costs less than the first fall claim. Add up the coverage, the equipment, and the redo work you avoid, and the math points one direction for most Twin Cities buildings. Hire the people who do this every day, and keep your own crew off the ladder.