Semrush is one of the two dominant horizontal SEO platforms (alongside Ahrefs), built around a massive keyword and backlink database plus a layered toolkit for technical SEO, content, competitive research, and PPC. For HVAC marketers, the platform is used to find high-intent service keywords ('AC repair [city]', 'furnace replacement cost'), benchmark against local competitors, audit site health, monitor rankings, and research backlink opportunities from local directories and home-services publications.
Beyond classic SEO, Semrush includes a Content Marketing Platform (Topic Research, SEO Content Template, SEO Writing Assistant) and, as of 2026, Semrush One, which tracks AI visibility across Google AI Overviews, ChatGPT, Gemini, and Perplexity - an increasingly important channel for home services searches. Semrush is the platform of choice when an HVAC company's in-house marketer or agency needs an all-in-one research and monitoring system rather than only local SEO tooling.
Founded in 2008 by Oleg Shchegolev and Dmitry Melnikov and headquartered in Boston, Massachusetts, Semrush is publicly traded (NYSE: SEMR), serves 100K+ paying customers, and publishes SEO Toolkit plans from $139.95/month up to $499.95/month plus custom tiers.