Don't pick a contractor
until you compare.
Upload your estimates. AI parses every line item, verifies licenses with the California CSLB, and delivers a side-by-side comparison with trust scores and red flags. Free, private, no account needed.
How it works
Upload your estimates
Drop 2-4 PDFs or photos. Our AI extracts contractor names, license numbers, line items, payment terms, and scope details automatically.
We verify and analyze
Each contractor's CSLB license is checked in real time. We verify bond status, workers comp, disciplinary history, and calculate a Trust Score.
See the truth, side by side
Normalized line items, scope gaps, red flags, material quality comparison, and payment term review. You'll know exactly who to hire and why.
What we verify on every contractor
Six real-time checks against the California CSLB database. Not reviews. Not ratings. Verified state records.
CSLB License Status
Real-time verification. Active, inactive, expired, or revoked.
Bond & Insurance
Workers comp and general liability coverage confirmed.
Disciplinary History
Complaints, citations, and actions from the CSLB.
Line-by-Line Comparison
Every line item normalized and compared across all estimates.
Payment Schedule Check
Verifies deposit legality under California B&P Code 7159.5.
Red Flag Detection
Excessive deposits, vague materials, missing scope, short warranties.
Trust Score: facts, not opinions
Every contractor gets a 0-100 score based on verified state records.
Real data from real projects
Kitchen remodel analysis - 847 estimates, Q1 2026
Data from LA, SF, and San Diego counties across 312 unique contractors.
Red flags we catch
Excessive deposit
Asking more than $1,000 or 10% of the contract. This violates California law.
Unspecified materials
Line items like 'tile: TBD' or 'countertops: equivalent.' You deserve specifics.
Missing scope items
One contractor includes demo, another doesn't. We flag every gap.
No bond or workers comp
If a worker is injured on your property, you could be liable.
Short warranty
Industry standard is 1-2 years minimum. 90 days is a red flag.
Suspicious pricing
40%+ below others usually means missing scope or planned change orders.
Your toolbox for the entire project
From your first estimate to your final payment.
Simple pricing. No subscriptions.
Most tools are free. Pay once per report when you need more.
Free
Shopping phase
Pro Report
Pre-commitment
Contract Review
Post-commitment
We work with contractors every day.
Now we work for you too.
Opsite was built by a general contractor who believes great contractors have nothing to hide. We know exactly what a professional estimate, a fair contract, and a safe payment schedule look like. Now we're giving homeowners that same knowledge.
We know what to look for
A line item that says 'tile: TBD' instead of a specific product? That's something you should clarify before signing. We help you spot the details that matter and ask the right questions.
Real CSLB verification, not reviews
Online reviews can be misleading. CSLB records can't. We check every contractor against the actual state database - in real time.
We never sell your information
Lead gen platforms sell your contact info to contractors the moment you click submit. At Opsite, you're the customer. Your data stays yours. Period.
Your partner through the whole project
Contract Review is just the start. Project monitoring, payment tracking, change order review, and inspection prep - all coming soon.
Frequently asked questions
Why not just use ChatGPT to review my estimate?
ChatGPT can't verify a contractor's CSLB license in real time, check their bond status, look up disciplinary history, or compare pricing against real California market data. Opsite connects to the actual CSLB database and uses real project data from thousands of California estimates. We don't guess - we verify.
Is it really free? What's the catch?
The estimate comparison, license checker, cost estimator, deposit calculator, and homeowner guides are completely free. No account required. We make money from optional paid reports: the $49 Pro Report (deep analysis + background check) and $199 Contract Review (before you sign). Most homeowners start free and upgrade if they want more.
How is Opsite different from HomeAdvisor or Angi?
HomeAdvisor and Angi are lead generation companies - they sell your contact information to contractors who pay for leads. Opsite is the opposite: we give you tools to evaluate contractors you've already found. We never share your information with anyone. Your contractor won't even know you used Opsite.
Will my contractor know I used this?
No. Your comparison is completely private. We don't contact contractors, share your information, or notify anyone. The only way a contractor would know is if you choose to show them your report.
How accurate is the Trust Score?
Trust Scores are based on real CSLB data, not reviews. We check license status, bond, workers comp, disciplinary actions, and years in business against the actual state database in real time. The score reflects facts - not opinions.
What about projects beyond contract review?
Contract Review is just the beginning. We're building Opsite to be your partner through the entire project - from choosing a contractor to making your final payment. Project monitoring, payment tracking, change order review, and inspection prep are all coming. Our goal is to change how homeowners do construction projects.