The marketplace for real installation partnerships.
NSTALZ brings installers and crew leaders together with builders, remodelers, property management companies and other industry businesses. Find the right fit for windows, doors, siding, roofing and more — by ZIP code and trade.
Installers join free. Builders can preview for free; full access requires a paid plan.
NSTALZ Markets
Find your market.
Active ZIP markets
Availability is ZIP- and trade-specific. Green indicates at least one configured market, not statewide coverage.
Talk to SalesCheck your state
Select a state to see active ZIP markets or ask us to open a new one.
Market Expansion
Open this market
Tell us where and when you need installation partners. Our team will review your request.
Downloads & installation
Your account. Your device.
Windows desktop app
PreviewPreview Version 1.0.0 · Windows x64 · 107 MB
A downloadable .exe with an installation wizard, folder selection, desktop shortcut and uninstaller. Internet connection required.
Unsigned preview: Windows cannot verify the publisher yet. Do not bypass security warnings. Use the browser version if Windows blocks installation.
Browser & other devices
No download required
No download required. Browser installation (PWA) is also available on supported devices; it is separate from the Windows installer.
Gina Sullivan
Founder & CEO, NSTALZ
12+ years in growth, markets and operations. Built NSTALZ to fix a problem she saw firsthand.
View experienceImportant marketplace information
NSTALZ is a marketplace, not an employer or staffing agency. NSTALZ provides technology that helps independent Installers and Builders & Remodelers discover, match, and communicate with one another. NSTALZ does not employ, supervise, direct, or control marketplace users. Users are solely responsible for evaluating one another, verifying credentials, negotiating their own agreements, and complying with applicable laws. Verification signals are informational marketplace indicators only. Terms of Service.