Home the Inland Empire Upland Sierra Pacific Roofing

Sierra Pacific Roofing

5.0 from 10 reviews

Roofing contractor in Upland, California

C-39 62723315 years in businessStreet address on fileWebsite

License Verified

627233 with Contractors State License Board, clear status, classified C-39, issued August 30, 1991. That includes the C-39 Roofing classification, which is the one that covers roofing work.

We read the state file on October 7, 2026. A license can change status any week, so check it yourself before you hand over money. Check it on the Contractors State License Board site.

Sierra Pacific Roofing is a roofing company in Upland, California, rated 5.0 out of 5 from 10 reviews.

At a glance

Based in Upland, in the West Valley part of the county.
Rated 5.0 out of 5 across 10 reviews.
Posted hours are listed below.
Has a website you can check before calling.

What to ask when you call

Every roofer in this directory is a real company with a working number. What separates a good call from a wasted one is the questions you bring. Ask for the state contractor license number and the C-39 Roofing classification. Ask whether the crew doing the work is on staff or subcontracted. Ask who pulls the permit and who handles the city inspection.

California licenses roofing contractors through the Contractors State License Board. Look up a license before you hire.

Then ask for the quote in writing with the roof area in squares, the material by product name, a price per sheet for any bad plywood, and the labor warranty in months. A company that gives you all of that on the first call has done this a lot.

Before you sign anything

In California, keep the deposit inside the state cap of one thousand dollars or ten percent. If a bid comes in far under the others, find out what got left out of the scope rather than assuming you found a deal.

Our guide to reading a roofing estimate walks through the lines that belong on every quote. Checking a contractor license takes about ten minutes.