The Missing Link Between Your Estimate and a Signed Contract.
We turn QuickBooks estimates into legally binding, e-signed contracts for service businesses—automatically.
Invite only. A working build with seeded data — create a contract, send it, sign it, collect the deposit.
The “Accept Estimate” button is not a contract.
7 million service businesses run on QuickBooks. None of them get a legally binding, e-signed contract out of it. Instead, they’re stuck rebuilding one by hand—every single time.
One click. From estimate to signature.
ContractFlow collapses eight disconnected manual steps into a single, automated workflow that lives inside the tool service businesses already use every day.
Auto-Populated Contracts
Pulls customer data and pricing directly from QuickBooks. Zero manual entry, zero copy-paste errors.
ESIGN-Compliant
Legally binding e-signatures with a full, tamper-evident audit trail on every contract.
Industry-Specific Templates
Purpose-built for HVAC, plumbing, electrical, landscaping, and beyond—not generic legal boilerplate.
Admin Dashboard
Track every pending and signed contract in one place, synced back to QuickBooks in real time.
In most states, that contract isn’t optional.
Home improvement work above roughly $500 legally requires a written contract carrying specific elements — license number, scope, start and completion dates, payment schedule, warranty, and right to cancel. A template pulled off the internet usually carries none of them.
High ticket, licensed, contract required by law.
Project contracts generated from the estimate your office already built in QuickBooks.
Roofing
$10k–30k
HVAC
$11.6k–14.1k replacement
Plumbing
$500–9k
Electrical
$1.5k–12k
The biggest tickets, and the most exposure.
Change orders, concealed conditions and permit language, handled as part of the document rather than a follow-up email.
Kitchen & bath
$25k–95k
General contracting
Varies
Agreements that renew, not one-off jobs.
Term, renewal and cancellation terms on a program the customer signs once and keeps paying monthly.
Landscaping
$3k–40k
Pool service
$8k–70k build
Pest control
$400–2.4k / yr
Average ticket ranges are 2026 market figures and vary by region and job mix. Contract requirements and dollar thresholds differ by state; California, for example, requires a written contract above $500 and added further requirements effective January 1, 2026. ContractFlow is not a law firm and does not provide legal advice.
A massive market, hiding inside a workflow nobody else owns.
Niche SaaS outperforms horizontal platforms.
Vertical SaaS companies achieve 35–60% higher customer retention than horizontal competitors, because their products become embedded in daily operational workflows—not just another tab left open.
The only tool built for the QBO-using service business.
Everyone else asks service businesses to change how they work. We don't.
Too expensive, built for legal teams
- Native QBO line-item sync
- Built for small & growing service teams
- ESIGN-compliant e-signature
- Industry-specific contract templates
- No need to leave QuickBooks
- Priced for a small service business
Requires abandoning QuickBooks
- Native QBO line-item sync
- Built for small & growing service teams
- ESIGN-compliant e-signature
- Industry-specific contract templates
- No need to leave QuickBooks
- Priced for a small service business
No native QBO line-item integration
- Native QBO line-item sync
- Built for small & growing service teams
- ESIGN-compliant e-signature
- Industry-specific contract templates
- No need to leave QuickBooks
- Priced for a small service business
The only $39/mo bolt-on built for QBO service businesses
- Native QBO line-item sync
- Built for small & growing service teams
- ESIGN-compliant e-signature
- Industry-specific contract templates
- No need to leave QuickBooks
- Priced for a small service business
Predictable subscription revenue, freemium entry point.
A tiered model designed to minimize friction at entry and maximize expansion revenue as service businesses grow — priced well below every FSM alternative.
Drives App Store adoption
- 3 contracts / month
- Basic contract template
- Full QBO sync
For the majority of small service businesses
- Unlimited contracts
- Full QBO sync
- E-signature with audit trail
- Admin dashboard
For growing, multi-person teams
- Everything in Starter
- Custom branding
- Multiple trade templates
- Custom fillable fields
- Client portal & priority support
Customer acquisition, built to be cheap by design.
We don't need to outspend anyone on ads. We show up exactly where QuickBooks service businesses already look.
QuickBooks App Store
Free listing in front of millions of QBO users actively searching for exactly this kind of workflow add-on.
QuickBooks ProAdvisors
A built-in referral engine—accountants and bookkeepers who already advise service businesses on which apps to install.
Trade Associations
Direct access to HVAC, plumbing, electrical, and landscaping trades through the associations that already serve them.
Professional & SMB Associations
Chambers of commerce, SCORE chapters, and industry groups for IT, consulting, and creative service businesses—the same playbook, a wider net.
A conservative path to $7M+ ARR within the QuickBooks ecosystem alone.
The QuickBooks ecosystem provides access to ~2.8M service businesses in our primary target segment — construction, IT, and software services. Projections below use conservative conversion benchmarks against comparable niche SaaS tools with strong product-market fit.
These projections cover the QuickBooks ecosystem only. A single unified accounting API connects to 50+ platforms, including Xero, FreshBooks, and Wave — expansion beyond QuickBooks multiplies the addressable market by 3–4x with minimal added engineering.
Not a concept. A live product.
What comes next.
Template library expansion
Broader coverage across HVAC, plumbing, electrical, landscaping & beyond
QuickBooks App Store certification
Unlocks organic distribution to millions of QBO users
Multi-platform integration
Xero, FreshBooks & Wave via a single unified API — minimal added engineering
Freemium onboarding
Removes friction from first contract to paid conversion
Join us in solving a $10 billion problemfor America’s service businesses.
We’re raising a pre-seed round to fund our QuickBooks App Store launch and acquire our first 500 customers.
App Store certification, template library, Xero integration
ProAdvisor referral program, community marketing
Template review, ESIGN audit infrastructure
General administrative and operating costs