Almost nobody hires a window cleaner twice a year for thirty years, so almost nobody develops a feel for what a good one looks like. That asymmetry is why the industry has so much door-knock pricing and so many vanishing deposits. Here is the checklist we would give a friend, written by a company that has to live with it: nine questions that actually predict the outcome, the red flags worth ending the call over, and the honest answer about when you should skip hiring anyone at all.
Ask these, in roughly this order. One, how do you count panes, and are window grids extra? Two, is that quote for interior and exterior, or exterior only? Three, are screens included or priced separately? Four, what water and what chemicals touch my glass? Five, are you insured, and can I see a certificate? Six, who physically shows up, employees or subcontractors? Seven, what happens if it rains two days later? Eight, is there a contract or a cancellation fee on a recurring plan? Nine, what is not included in this price? The ninth question is the most useful one in the whole list, because the gap between a cheap quote and an expensive one is almost never the quality of the work. It is the scope, and a company that answers question nine crisply is telling you it has nothing hidden in there.
A quote built on your home's square footage is a quote built on the wrong number, because square footage does not tell anyone how much glass there is. Two 2,400 square foot houses can differ by a factor of three in pane count. Pane counting is straightforward: a pane is one piece of glass, a fixed picture window is one, a double-hung is usually two, and a true divided-lite window on an older home can carry six, nine, or twelve pieces that each get hand-detailed. This matters enormously in the Treasure Valley, where a 1910 North End bungalow and a 2021 Star farmhouse can sit twenty minutes apart with wildly different counts. When a company quotes a firm price over the phone without counting anything, it is not being efficient. It is guessing, and the correction arrives on your driveway.
There are two mainstream approaches and the difference is real. Traditional soap-and-squeegee uses detergent and tap water, and a skilled tech gets excellent results, but the tap water in this valley runs roughly 10 to 13 grains hard, so anything left to air dry, sills, frames, the edges, spots. Pure water cleaning strips every dissolved mineral out through deionization or reverse osmosis first, so the water dries leaving nothing behind, and no soap film remains for dust to bond to. Reflekt uses 100% pure deionized water with no soap for exactly this reason. Neither method is magic and both can be done badly. What should worry you is a company that cannot describe its method at all, or one that says pressure washing when you asked about siding, because siding wants a low-pressure soft wash and pressure will drive water behind hardboard and vinyl.
Some of these are universal and some are specific to how exterior cleaning gets sold here. Same-day door-knock pressure with a price that expires tonight. A firm whole-house number quoted before anyone has counted panes or seen the house. A total well under $199 for interior and exterior, which is a loss-leader that grows once the crew is standing in your driveway. Any request for a large deposit before work, especially in cash. No proof of insurance, or a promise to email it that never arrives. Vague 'starting at' pricing paired with heavy on-site upselling. And a specific one for older Boise, Nampa, and Caldwell homes: anyone who talks about blasting or power washing original wood sash and true divided lites. Hundred-year-old painted sash and wavy glass do not survive that, and a company that does not volunteer the distinction has told you what you need to know.
In the Treasure Valley, most homes land between $199 and $450 for interior and exterior window cleaning, with typical three- and four-bedroom houses around $250 to $400 and large or historic homes with heavy pane counts running $450 to $800 or more. Exterior-only costs less. Add-ons should be itemized, not bundled into a mystery number: expect screens around $50, gutters from about $199, pressure washing near $0.20 per square foot, and soft-wash house washing near $0.18. Recurring schedules should cost less per visit than one-offs, because maintained glass is faster to clean, and they should not require a contract. And the honest part: if you have a single-story house with big, simple, reachable windows and no hard-water etching, you can do it yourself with a squeegee and a bucket for the price of the squeegee. Hire out when there is a second story, a high pane count, mineral etching, or a ladder you should not be on.
Still wondering about something? Call or text us at (208) 453-6760.
Ask how they count panes and whether grids are extra, whether the quote is interior and exterior or exterior only, whether screens are included, what water and chemicals touch the glass, whether they are insured and can produce a certificate, whether employees or subcontractors show up, what happens if it rains afterward, whether a recurring plan has a contract or cancellation fee, and finally, what is not included in the price. That last question surfaces more real information than the other eight combined.
Compare scope before you compare price. Most Treasure Valley homes run $199 to $450 inside and out, with typical three- and four-bedroom houses at $250 to $400 and large or historic homes with high pane counts at $450 and up. A fair quote itemizes add-ons: screens around $50, gutters from about $199, pressure washing near $0.20 per square foot. A quote far below that range usually means exterior-only, screens excluded, or a number that will grow on arrival.
A range over the phone is reasonable. A firm price over the phone, before anyone has counted panes or looked at the house, is a guess. Pane-count pricing cannot be done blind, and the difference between a new build with large fixed windows and an older home with divided-lite sash is enormous. Ask for either an on-site look, photos, or an online tool that walks through window count. Reflekt's instant-quote tool takes about 60 seconds and works from your actual window count.
It matters more here than in most places. Treasure Valley tap water runs roughly 10 to 13 grains hard, so soap-and-tap-water cleaning can leave mineral spotting on anything that air dries, and detergent residue gives dust something to stick to. Pure water cleaning removes dissolved minerals through deionization before the water touches glass, so it dries leaving nothing behind. Reflekt uses 100% pure deionized water with no soap. Ask any company to describe its method; inability to answer is the real red flag.
Idaho does not license window cleaning as a trade, which means the burden of checking falls entirely on you. Always ask for proof of general liability insurance, and for commercial or HOA work ask for a certificate of insurance naming you as an additional insured. An uninsured crew putting a ladder against your second story is a risk you personally absorb. Reflekt is fully insured and issues a COI on request without making it a negotiation.
If you have a single-story home with large, simple, reachable windows, no second-story glass, and no hard-water etching, a squeegee, a bucket of water, and twenty minutes will get you most of the way there. Hiring out earns its cost when there is a second story, a high pane count from divided lites or grids, mineral etching that needs restoration rather than washing, solar panels, gutters, or any work that puts you on a ladder you should not be on.
Free estimate in 60 seconds. Same-day and next-day slots available.
Get Free Estimate Now