At Club Calima we spend a lot of time thinking about systems that help people
Sometimes those systems are complex infrastructure projects
Sometimes they’re surprisingly simple tools that solve a very expensive problem
This week we helped launch a new startup from our incubator network:
A service that reviews roofing contractor estimates before homeowners pay a deposit
Because replacing a roof is usually a $15,000–$35,000 decision, and most people sign those contracts without an independent review
The Problem: Roofing Quotes Are Hard to Compare
Roofing estimates are not standardized
Two contractors can quote the same house and produce numbers that vary by $5,000–$15,000 depending on:
material specifications
waste factors
ventilation adjustments
decking replacement claims
underlayment type
vague line-item language
insurance-driven pricing structures
Most homeowners don’t have the experience to decode these documents
And by the time the deposit is paid, negotiating becomes much harder
The Solution: Independent Estimate Audits
Roofing Quote Audit provides a structured review of contractor estimates before a homeowner commits
Homeowners upload their estimate and receive a written breakdown that identifies:
material pricing compared to regional averages
labor assumptions
documentation gaps
vague scope language
change-order risk areas
insurance scope alignment
The goal isn’t to create conflict with contractors
The goal is clarity before commitment
Sometimes the estimate is perfectly fair
Sometimes it just needs better documentation
Either way, the homeowner makes the decision with more information
A Real Example
One homeowner recently received a $22,000 roofing estimate after completing chimney repairs
The contractor recommended:
full tear-off of 30 squares
full plywood replacement due to “mold”
generic “30-year shingles”
synthetic underlayment
valley and starter metal
The audit flagged several clarification points:
decking replacement without attic documentation
unspecified shingle brand and product line
vague underlayment description
cash price discrepancy
no per-sheet decking breakdown
missing ventilation adjustment details
After requesting clarification, the homeowner received a revised scope description before signing
Small questions often lead to better transparency
Building the System
From a technical perspective, the project launched quickly using tools our incubator network frequently deploys:
Odoo ERP for CRM, website, and operations
Stripe for secure payments
structured document workflows for estimate review
community forum tools for homeowner support
Because the goal was speed: validate demand, capture early customers, and iterate
A Good Example of Lean Startup Execution
Roofing Quote Audit is a good example of what we try to do at Club Calima:
identify a real problem
build a simple service around it
launch quickly
learn from real users
Sometimes the best startups begin with a single focused service
In this case: helping homeowners feel confident before signing a roofing contract
Learn More
You can explore the project here:
If you’ve recently received a roofing estimate, you might want a second set of eyes before paying that deposit
About Club Calima
Club Calima is an international startup community and builder network focused on helping founders launch and operate companies using modern infrastructure and open technology
Our team supports projects with:
fractional executive leadership
engineering systems
startup operations
investor and operator networks
We enjoy helping good ideas turn into real companies