Find a Window Contractor Near You in Ontario
Ontario's 18 window contractors are grouped below across 2 ZIP codes, with 91761 carrying the most at 13. If your ZIP has only a couple of names, Chino sits 6 miles away and may have more.
Licenses checked · California Contractors State License Board
Window contractors near you in Ontario
Grouped by ZIP code, then alphabetical by business name. Nobody paid their way into a ZIP group or a spot within it.
ZIP 91761 (13)
Astera Kitchen And Bath Cabinets
Window and glass contractor
- License
- C-17 Glazing · 1134637
- Since
- 2025
- Expires
- Mar 31, 2027
- ZIP
- 91761
Axxess Door Corp
Window and glass contractor
- License
- C-17 Glazing · 999754
- Since
- 2015
- Expires
- Jan 31, 2027
- ZIP
- 91761
E B A Glassworks
Window and glass contractor
- License
- C-17 Glazing · 821501
- Since
- 2003
- Expires
- Jul 31, 2027
- ZIP
- 91761
Forrest Glass & Door
Window and glass contractor
- License
- C-17 Glazing · 984938
- Since
- 2013
- Expires
- Jul 31, 2027
- ZIP
- 91761
Fresno Shower Door INC
Window and glass contractor
- License
- C-17 Glazing · 986239
- Since
- 2013
- Expires
- Aug 31, 2027
- ZIP
- 91761
Innovative Glazing Solutions
Window and glass contractor
- License
- C-17 Glazing · 871285
- Since
- 2006
- Expires
- Jan 31, 2028
- ZIP
- 91761
Kor Glass And Door LLC
Window and glass contractor
- License
- C-17 Glazing · 1097600
- Since
- 2022
- Expires
- Sep 30, 2028
- ZIP
- 91761
Lmi
Window and glass contractor
- License
- C-17 Glazing · 471010
- Since
- 1985
- Expires
- Mar 31, 2027
- ZIP
- 91761
Myco Construction
Window and glass contractor
- License
- B General Building / C-17 Glazing / C-39 Roofing · 853581
- Since
- 2005
- Expires
- Nov 30, 2027
- ZIP
- 91761
Platinum Glass Corporation
Window and glass contractor
- License
- C-17 Glazing · 1098729
- Since
- 2022
- Expires
- Nov 30, 2026
- ZIP
- 91761
Rynoclad Technologies INC
Window and glass contractor
- License
- C-17 Glazing · 963208
- Since
- 2011
- Expires
- Mar 31, 2028
- ZIP
- 91761
So-Cal Showerdoors
Window and glass contractor
- License
- C-17 Glazing · 812487
- Since
- 2002
- Expires
- Sep 30, 2028
- ZIP
- 91761
Villalobos Glass CO INC
Window and glass contractor
- License
- C-17 Glazing · 851274
- Since
- 2004
- Expires
- Mar 31, 2028
- ZIP
- 91761
ZIP 91762 (5)
Arco Glass Plus INC
Window and glass contractor
- License
- C-17 Glazing · 1087211
- Since
- 2022
- Expires
- Feb 29, 2028
- ZIP
- 91762
Design Windows & Doors INC
Window and glass contractor
- License
- B General Building / C-17 Glazing · 912367
- Since
- 2008
- Expires
- Mar 31, 2028
- ZIP
- 91762
First Choice Windows INC
Window and glass contractor
- License
- C-17 Glazing · 1059753
- Since
- 2019
- Expires
- Nov 30, 2026
- ZIP
- 91762
Smith Brothers Glass INC
Window and glass contractor
- License
- C-17 Glazing · 885356
- Since
- 2006
- Expires
- Oct 31, 2026
- ZIP
- 91762
Spec Construction CO INC
Window and glass contractor
- License
- B General Building / C-17 Glazing / C-36 Plumbing / C-39 Roofing · 419626
- Since
- 1982
- Expires
- Aug 31, 2027
- ZIP
- 91762
2ZIP codes with listings
Ontario by ZIP code
Not every ZIP in Ontario has the same number of licensed window contractors; 91761 leads the city with 13.
A thinner ZIP in Ontario doesn't mean fewer options nearby, just fewer businesses whose license record lists that exact ZIP as home base.
The nearby-cities list further down Ontario's page exists exactly for a thin-ZIP situation like that.
9176191762
Data: California Contractors State License Board license records, checked 2026-09-30.
6 mito Chino, the nearest city on this site
Widening the search beyond Ontario
Chino is the closest other city on this site to Ontario, about 6 miles away.
Worth a look if Ontario's own ZIP-by-ZIP lists are thin for the trade you need.
- Chino 6 mi · 9
- Montclair 6 mi · 5
- Upland 6 mi · 9
- Rancho Cucamonga 7 mi · 11
- Norco 8 mi · 6
- Pomona 9 mi · 11
- Fontana 10 mi · 11
- Corona 12 mi · 21
Data: U.S. Census Bureau, 2026 TIGER/Line Gazetteer County Subdivision file (Connecticut only) (2026); U.S. Census Bureau, 2026 TIGER/Line Gazetteer Files (places, counties, ZCTAs, states) (2026).