Own Plumb.

What you'd own.

Every artifact below transfers to your accounts on day one. The whole engine.

• ●Founder brand as Marcus Guillory with credibility in contractor communities
• ●Landing page, messaging, sales collateral for contractor outreach
• ●AI estimating agent with custom design spec and prompts
• ●GTM playbook: Facebook group targeting, YouTube tutorials, cold email
• ●Financial model showing $120 monthly SaaS unit economics
• ●Early customer relationships and demo pipeline

What Roll Digital builds for you.

Custom scope to take Plumb from MVP shell to operating business.

• ▸Production FastAPI backend to power the estimating engine
• ▸Contractor web UI for project estimation and results sharing
• ▸Stripe recurring billing integrated across three pricing tiers
• ▸Multi-tenant auth system supporting email and Google sign-in
• ▸Regional material cost database with ZIP code pricing lookups
• ▸Custom domain provisioning with SSL for brand white-label
• ▸Customer dashboard and admin panel for metrics and support

Why this could work.

Plumb addresses a real contractor pain point: SMB GCs doing custom project bids lack fast, accurate estimating tools. Niche Facebook groups and YouTube tutorial channels reach this audience at low cost with high buyer intent. At $120 monthly, adoption friction is minimal for time-pressed operators. The 210k addressable SMBs represent real TAM if you maintain founder-level outbound quality and operational discipline.

What you'd risk.

AI accuracy is existential. An 8 percent error on a $180k job costs a contractor $14k and kills word-of-mouth in trade communities. Regional labor and material costs vary sharply: lumber prices differ between Idaho and Miami, union labor rates differ from non-union. Training data at ZIP code precision is expensive and requires continuous maintenance. Procore, Buildertrend, and CoConstruct already bundle estimating at $300-500 monthly. Contractors paying those platforms have low switching incentive for an add-on subscription.

Who this fits.

An operator comfortable with outbound sales and early-stage product ambiguity. You should have contractor industry credibility or an existing YouTube audience, but strong cold-outreach execution matters more. Expect founder-level work: cold email, demos, objection handling, customer onboarding. This fits SaaS founders or agency operators who thrive on relationship-building and direct deal closure, not full delegation.

Timeline.

From contract signing to operating business.

1. Day 1
   Founder assets, GTM playbook, demo pipeline transferred to operator
2. Week 1
   Operator onboarding and community research in target contractor segments
3. Week 3
   Production backend, web UI, and Stripe billing go live
4. Week 6
   First customers onboarded, estimate accuracy benchmarked against real bids
5. Day 90
   Complete onboarding of 10-12 paying customers, validate estimate accuracy

Pricing.

Three ways in, depending on how much you want to build yourself.