Trust & Licensing
Licensing, insurance, bonding, BBB record, and verified credentials.


Licensing, insurance, bonding, BBB record, and verified credentials.
Website quality, page speed, structured data, and Google profile completeness.
Ratings, review volume, recency, owner responsiveness, and sentiment.
Transparency, financing options, and what customers say about cost.
Warranties, guarantees, emergency service, certifications, and customer care.
Technical site fundamentals — Core Web Vitals, semantic HTML, sitemap, canonical URLs, Open Graph + Twitter Card metadata, content freshness, named services.
How well your site is structured for AI search engines to read and recommend — LocalBusiness + Review + FAQ + Service/Product schemas, llms.txt, NAP consistency.
Guthrie And Sons is viewed as reasonable on pricing with mixed customer feedback. Reviewers consistently mention professional technicians. Some customers mention scheduling delays.
Zach came out to check the ACs and Furnaces. He is knowledgeable and is great to work with.
Christian, Lalo and Mike were great. Very respectful and patient. They took their time to do everything right. And they were very mindful of wearing booties to prefect my floors.
Made an appointment Monday night, problem solved Tuesday!
TradeScore ratings are generated algorithmically from publicly available data including California CSLB license records, Better Business Bureau filings, Google Business Profile data, and automated website analysis. Scores reflect the data available at the time of scoring (see date above) and are updated periodically. Scores are informational tools designed to help homeowners research contractors. They are not endorsements, guarantees of work quality, or recommendations to hire or avoid any contractor. Data accuracy depends on public sources and may not reflect recent changes. If you are a contractor and believe your information is inaccurate, visit tradesadvisory.com/dispute to request a review. See our full Terms of Service for details.