You're already on-site, the truck is loaded, and the house wash just wrapped up. That's the best moment to add $250-500 to your ticket without any extra drive time. Window cleaning after pressure washing is one of the easiest upsells in home services -- and most contractors never even ask.

The Quick Answer

Window cleaning runs $8-$16 per window for exterior-only. A typical home with 15-20 windows adds $150-$250 per job. Large homes with 25-35 windows bring in $300-$450.

10-15 windows: $120-$200
15-20 windows: $150-$302 (national average: $220)
25-35 windows: $250-$450
Interior + exterior: 1.8-2x the exterior-only rate
Minimum charge: $100-$150

You don't need a full window cleaning business to offer this. A squeegee kit, a water-fed pole for second-story reach, and the right cleaner is all it takes to bolt this onto your existing pressure washing jobs.

Why the Timing Works

When a homeowner hires you to wash their house, they're already in "clean everything" mode. The yard looks better, the siding looks fresh -- then they glance at the windows and see they're still grimy.

That's your opening. You're right there, the customer is happy, and you haven't packed up yet. Upselling in that moment converts far better than any follow-up call or email.

Here's another angle: pressure washing makes windows dirty. Overspray from house washing coats glass with soap, dirt, and mineral deposits. If you leave without addressing it, the windows look worse than when you started -- which hurts your reviews. Cleaning them is actually part of leaving the job right.

Equipment You Need

You don't need a full window cleaning rig. Here's a lean setup to get started:

Extension squeegee (Ettore or Unger): $30-$80
Scrubber sleeve + bucket: $20-$40
Window cleaning solution (concentrate): $10-$20 per gallon
Microfiber cloths or wagtail: $15-$30
Water-fed pole (optional, for second story): $200-$500

Total to get started: under $150 for ground-floor windows, under $700 with a water-fed pole for two-story homes. You break even on your first or second window job.

How to Price Window Cleaning Add-Ons

The easiest model is per-window pricing. Walk the property during your initial estimate, count the windows, and build the price right into your quote.

Exterior only: $8-$12 per standard window
Interior + exterior: $15-$20 per window
Second floor or hard-to-reach: add $3-$5 per window
Hard water stains: add $5-$10 per window

Most contractors find it cleaner to bundle rather than quote two separate line items. "House wash + exterior window clean for $X" is easier for the customer to say yes to. For example: a 2,000 sq ft home at $350 for the wash + $200 for 20 windows = $550 total versus two separate visits.

What to Say to Close the Add-On

You don't need a sales pitch. You just need to ask. After you finish the house wash, walk the customer to a window and say:

"I noticed your windows picked up some overspray from the wash. I can do a quick exterior clean while I'm still here for $X. Want me to add that on?"

Short, direct, no pressure. Most homeowners say yes because hiring someone else to come back means scheduling another visit. You're already there -- that's a real convenience they'll pay for.

Build It Into Your Recurring Revenue

Window cleaning naturally repeats 2-4 times per year. A homeowner who buys it once usually comes back. If you convert 10 existing pressure washing customers into window cleaning customers, that's $1,500-$3,000 in extra annual revenue with zero marketing spend.

Some contractors package it as a bi-annual bundle: one house wash + window clean in spring, one in fall. Offer $50 off the bundle to lock in both jobs up front. Your customer gets a deal, you get two jobs booked in advance.

For standalone window cleaning rates, check out our 2026 window cleaning pricing guide. And if you're looking to combine more exterior services, the gutter cleaning upsell guide covers a similar strategy.

Bottom Line

Window cleaning after pressure washing is low-risk, low-investment, and high-return. You're already on-site, the customer is already happy with your work, and the ask is completely natural. Converting one in every three house wash customers to a window cleaning add-on can put an extra $5,000-$10,000 in your pocket per year without extra marketing.

If you want to show customers their bundle options before they even call, try QuoteSnap for free. It lets you embed an instant pricing calculator on your website so homeowners can build their own package and submit a lead directly.

Window Cleaning After Pressure Washing: How Contractors Add $250-500 Per Job