Skip to content

Prices Projects Contractors Cities Trades For contractors

Contact Plan a project

Tell Sinra what you want done. Winston scopes it, prices it against real local projects, and lines up the right contractor. End to end, with you approving each step.

Data covers New York City, Chicago, Los Angeles and Austin.

Homeowners

What should it cost?
Check a quote
Browse real projects
Find a contractor

Explore

New York City
Chicago
Los Angeles
Austin
All trades

Company

For contractors
Contact
Privacy
Terms

© 2026 Sinra.ai. Prices are drawn from public permit filings and are not quotes.

From idea to done.

Alpha Waterproofing Inc | Los Angeles Contractor | Sinra.ai

HomeContractorsAlpha Waterproofing Inc

AW

RoofingRoofing Contractor

Alpha Waterproofing Inc

Los Angeles business

2
projects on record: 2
areas served: $24,000 – $38,000
price range · 2 recent: Roofing Contractor
license type

Winston

Sinra's conciergeOnline now

Considering Alpha Waterproofing Inc? Tell me the project and I’ll check whether they’d take it at your budget.

Service areas

Downtown North Hollywood - Valley Village

Trades

Recent projects

Reported costs from permit filings

Roof Replacement at 5309 N Riverton Ave, North Hollywood - Valley Village
Roofing

North Hollywood - Valley Village · Jun 25, 2026

$24,000

Issued

Re-roofing Project at 1355 S Main St, Downtown

RoofingDowntown · Jun 23, 2026

$38,000

Issued

For homeowners

Hire Alpha Waterproofing

Tell us the project. We check fit and budget with the business and introduce you if it works.

For businesses

Is this your business?

Claim this page to add photos, contact details and showcase your work.

Compare

See how this business's reported costs compare with the local range for roofing work.

Compare local prices