Local visibility for an HVAC company depends on more than its review profile. Google publicly describes relevance, distance, and prominence as broad concepts behind local results, and it notes that more reviews and positive ratings can help local ranking. That makes reviews worth managing, but it does not make every review-management habit an official ranking factor.
For an owner or marketing lead, the useful question is whether the review profile gives a prospective customer enough recent, credible information to judge the business, its service quality, and how it handles problems. A review program should therefore be managed as customer feedback and reputation operations first, with SEO impact treated carefully rather than assumed.
Audit practical evidence: are reviews arriving over time, do comments describe real HVAC work, are serious complaints acknowledged, and are policy-violating reviews reported through the proper channel? Use the review audit alongside profile and website checks so reputation issues are considered in context rather than isolated from the rest of local search.
Competitor comparisons are still useful when they remain descriptive. A nearby company may have more reviews, a different average score, stronger brand recognition, a more relevant profile, or a more favorable location. Those observations can guide priorities, but they do not prove which single factor caused a ranking difference.
Previously published examples sometimes compare a 4.8-star business with 200 reviews against a 4.2-star business with 30. Treat that as a customer-choice illustration, not proof that the larger profile will outrank the smaller one. The practical goal is to keep your own profile accurate, current, representative, and useful to people deciding who to contact.