For Contractors

Grow Your ADU Business with Professional Tools and Proven Plans

License the full Horizon Line configuration experience and host it directly on your website — white-labeled or co-branded.

Offer your clients a modern, transparent way to explore and configure Horizon Line guest houses without sending them away from your brand. Use our pre-engineered plans, specifications, and real-time material pricing while keeping full control of the client relationship.

How It Works

From application to your first configured build

  1. Step 1: Apply & Get Certified

    Submit a short application and complete onboarding. We confirm your license and insurance so clients know they are in good hands.

  2. Step 2: Choose Your License Tier

    Pick the Basic or Premium plan that fits your business, then get access to the full Horizon Line plan library and configuration tools.

  3. Step 3: Host the Portal on Your Site

    Embed the white-labeled or co-branded configuration portal on your own website so clients explore and configure without ever leaving your brand.

  4. Step 4: Build with Confidence

    Deliver pre-engineered, code-compliant ADU’s with transparent pricing — while we handle the software so you can focus on the build.

Licensing

Choose the license that fits your business

Both tiers include the hosted configuration portal, the full Horizon Line plan library, and real-time pricing tools. Upgrade to Premium for co-branding, lead sharing, and marketing support.

Basic License

$2,400/year
  • White-labeled configuration portal on your website
  • Full access to Horizon Line plans and specifications
  • Real-time material and finish selection tools
  • Standard training and support resources
Recommended

Premium License

$3,600/year
  • Everything in Basic
  • Co-branded portal option
  • Lead sharing in your primary service area
  • Joint marketing opportunities
  • Priority support and early access to new features
  • Optional featured profile on guestadu.com

Why Contractors Choose Horizon Line

Everything you need to deliver better ADU projects

A professional client experience

Deliver a modern, transparent configuration experience without building — or maintaining — your own software.

Pre-engineered, code-compliant plans

Use proven plans designed for Arizona and expanding nationally, so projects start on a solid, buildable foundation.

Less overhead, more quality

Reduce overhead while increasing project quality and speed with standardized, factory-engineered components.

Pricing that builds trust

Access transparent material and finish pricing tools that build client confidence and shorten the path to yes.

A growing quality network

Join a growing network of contractors focused on quality ADU delivery and a better client experience.

Certification Requirements

What it takes to get certified

Certification is designed to be accessible for established contractors while protecting the quality of the program — and the experience your clients receive.

  • Active contractor license in good standing
  • Proper insurance coverage
  • Agreement to use Horizon Line plans and specifications as the project basis
  • Completion of short onboarding training

Ready to Get Started?

Join the contractors bringing a modern, transparent ADU experience to their clients. Apply for certification, or book a quick discovery call to see the portal in action and find the right license tier for your business.