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California contractor license
Design Windows & Doors Inc
Design Windows & Doors Inc of Ontario holds California license 912367 (B General Building, C17 Glazing). The CSLB file dated Oct 31, 2026 lists it as active.1 It expires Mar 31, 2028.
Licensed 18 years, longer than 69% of 234 active Ontario general contractors.
Active
- Workers' comp ends Oct 31, 2026 (0 days)
Design Windows & Doors Inc, Ontario
- License
- 912367
- Class
- B General Building; C17 Glazing
- Expires
- Mar 31, 2028
- Bond
- $25,000
- Workers' comp
- Insured to Oct 31, 2026
CSLB file dated Oct 31, 2026
From the CSLB file dated Oct 31, 2026. Not a consumer report; check the board before you hire.
Has the board taken action on this license?
None in the CSLB file dated Oct 31, 2026. Confirm with the board: CSLB license check
What bond, insurance and workers' comp are on file?
- Bond
- $25,000Merchants Bonding Company (Mutual), from Sep 1, 2026, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredPie Insurance Company (The), from Oct 31, 2025, to Oct 31, 2026
Who is on this license?
- Officer
- Jill L. PentolinoSince Mar 13, 2008
- Responsible managing officer, CEO and president
- Onofrio PentolinoSince Mar 13, 2008
What work does this license cover?
Issued Mar 13, 2008.
- B General Building
- C17 Glazing
Which other Ontario businesses hold B General Building?
- Metro RF Services IncLicensed since 2007
- Daylight Solar Energy CorpLicensed since 2007
- Jewel Construction IncLicensed since 2008
- Evies International IncLicensed since 2008
- 8a Construction Services IncLicensed since 2008
General Contractors in OntarioCalifornia general contractors
What should you check before hiring?
What to ask before you hire
- Ask whether it has been renewed. Something on this license ends within 60 days. Check again before you pay a deposit.
- Get the license number in writing. The name on the license should match the name on your contract and invoice.
- Check the class covers the job. A license for one trade doesn't cover another. California license classes
- Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
- Ask who will be on site. If a crew works on your property, ask for proof of workers' comp. An exemption on file means the contractor told the CSLB it has no employees.
- Put it in a written contract: license number, price, start date and payment schedule. Check the license again on the day you sign.
If the license is lapsed
- Don't sign or pay a deposit until the CSLB shows the license active again.
- Ask the contractor why. For a bond or insurance lapse, ask for proof that the new bond or policy was filed with the CSLB, then check again.
- If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
- Check another contractor. California license lookup
Sources
- CSLB License Master (cslb.ca.gov, Oct 31, 2026)
- Contractors State License Board (CSLB)