Montclair Residential & Commercial Window Replacement — Insured & Bonded

Call (844) 422-0623 or send the form and we schedule a site visit in Montclair, usually within a couple of days. You get a written, itemized free estimate with materials and scope spelled out — no verbal ballpark, no pressure, and no charge whether you hire us or not. Se habla español.

We also serve Upland, CA and the rest of the West End of the Inland Empire. Everything starts at the Ontario Window Replacement homepage.

Ontario Window Replacement covers the same range of work in Montclair that we do in Ontario — nothing is carved out because the address is a few miles up the road:

• Sliding Patio Doors — The patio slider is the heaviest moving thing in most Ontario houses and the one that gets used every day. When people say their door is broken, nine times out of ten the glass is fine and the rolling system underneath it has been dead for years.
• French Doors — A pair of French doors gives you the entire opening rather than half of it, and it looks better than a slider from every angle. It also has three times as many things that can bind, drop or leak, and it demands more from the wall it sits in.
• Entry Doors — The front door of a house and the front door of a business have the same job and almost nothing else in common. One is chosen for how it looks and how tightly it seals.
• Glass Repair and Sealed Unit Replacement — Most of what looks like a window problem is a glass problem, and glass can be replaced inside the frame you already own. This page exists because that fact costs us money and saves you a great deal of it.
• Commercial Storefront Glass — This is the page the rest of the site keeps pointing at. Ontario runs on distribution, retail and light industry, and the glass at the front of those buildings is a separate market with its own pricing, its own permits and its own warranty terms.
• Energy-Efficient Glass for Homes and Suites — Energy-efficient glass pays back on a schedule, and the two buildings we work on keep opposite schedules. A house in Ontario sits empty at two in the afternoon and full at eight at night.

See the full list of Ontario services, or call (844) 422-0623.

Montclair sits in San Bernardino County with a population of roughly 37,865 at the 2020 census, in a five and a half square mile footprint dominated by retail frontage, close enough to Ontario that crews move between the two constantly. Local landmarks and corridors residents know well include the Montclair stretch of Holt Boulevard, the Arrow Highway commercial frontage in Montclair.

Local knowledge is not a marketing line here. Montclair properties share soil, weather, permit rules and construction eras with the rest of San Bernardino County, and a window contractor who works the area weekly already knows what fails locally and what holds up. That is the difference between a bid and an accurate bid.