Our Data Sources
30,000+ reviews analyzed. 10+ data sources. 20+ trust signals. ProScore analyzes it all to calculate trust scores for 14,800+ Ontario contractors.
Why Multiple Sources Matter
A contractor might have 4.8 stars on one platform and poor ratings on another. Single-source ratings give an incomplete picture. ProScore cross-references multiple independent sources — including government licensing databases — so you see the full story, not just one platform's version of it.
Google Reviews
Reviews & RatingsStar ratings, review counts, owner responses, and business verification status from Google Maps.
Better Business Bureau (BBB)
Accreditation & ComplaintsLetter grades, accreditation status, complaint history, and dispute resolution.
Major Review Platforms
Reviews & RatingsRatings and review text from additional Canadian home improvement review platforms.
Electrical Safety Authority (ESA)
Electrician LicensingOntario's regulator for electrical safety. Verifies active electrician licences.
TSSA (Technical Standards & Safety Authority)
Gas Fitter & HVAC LicensingRegulates gas fitters, HVAC technicians, and fuel-related contractors in Ontario.
HCRA (Home Construction Regulatory Authority)
Home Builder LicensingOntario's regulator for new home builders and vendors. Verifies builder registration.
Skilled Trades Ontario
Trade RegistrationProvincial trades registration and certification for compulsory and voluntary trades.
WSIB (Workplace Safety & Insurance Board)
Workers Compensation InsuranceMatches the business in the WSIB register to confirm its workplace insurance registration, protecting homeowners from liability.
Ontario Consumer Beware List
Consumer ProtectionGovernment-maintained list of contractors with unresolved complaints or charges.
AI Sentiment Analysis
CapabilityAI sentiment analysis is not a data source — it is an intelligence capability layered on top of our sources. Our proprietary NLP model reads what customers write and evaluates contractors across six dimensions: quality of work, communication, professionalism, value, reliability, and expertise. This transforms raw review text into actionable trust signals.
20+ Trust Signals
Each data source generates multiple trust signals, and so does what a business does on ProScore itself. ProScore evaluates 20+ distinct signals to produce the final score, including: