Find a Window Contractor Near You in Ontario
Quick answer
Which window contractors are licensed in Ontario, CA?
Ontario, CA lists 17 window contractors from the California CSLB license file. Those license records were checked September 2026. Open the linked record before you hire. Use the list as a starting point only. A listing is not a recommendation.
Updated
Ontario's 17 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, Eastvale sits 5 miles away and may have more.
Licenses checked · California Contractors State License Board
Updated
Before you call the closest name on the list
Is this business's license address actually near me, or just technically within city limits?
Match it to the linked record.
How soon can someone come measure, and how soon after that could the windows actually be installed?
Ask before you hire anyone.
Who pulls the permit if this job needs one?
The row links to the file.
What's the full written scope: material, style, replacement method and count?
A listing is not a recommendation.
Is there a trip charge, and does it change based on distance from their listed address?
Confirm it on the linked record.
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 (4)
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
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
2 ZIP 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.
5 mi to Eastvale, the nearest city on this site
Widening the search beyond Ontario
Eastvale is the closest other city on this site to Ontario, about 5 miles away.
Worth a look if Ontario's own ZIP-by-ZIP lists are thin for the trade you need.
- Eastvale 5 mi · 10
- Chino 6 mi · 9
- Montclair 6 mi · 5
- Upland 6 mi · 9
- Rancho Cucamonga 7 mi · 10
- Jurupa Valley 8 mi · 10
- Norco 8 mi · 6
- Claremont 9 mi · 10
Data: U.S. Census Bureau, 2026 TIGER/Line Gazetteer County Subdivision file (Connecticut only); U.S. Census Bureau, 2026 TIGER/Line Gazetteer Files (places, counties, ZCTAs, states).