Red flags include long contracts, guaranteed rankings or lead counts, agencies that keep ownership of your website or Google profile, vague monthly reports, and lead programs that also serve competing HVAC shops in your area. A good agency is clear about what it does and lets you leave freely.
The HVAC marketing space is crowded with agencies that specialize in the trade, and some of them are excellent. Others rely on lock in. Watch for contracts of twelve months or more with steep exit fees, especially when the agency also controls your website hosting and domain. If you leave, you might lose the site entirely and have to start over. Ask who owns the call tracking numbers too, since those numbers end up on your listings and can create a mess if they vanish when you switch.
Be skeptical of guarantees. No one controls Google rankings or what AI tools say, so promises of first place or a fixed number of leads per month are a sign of either inexperience or a lead reselling model. Ask exactly what gets done each month, who writes the content, and how they will report results in terms you care about, like calls and booked jobs. If an agency cannot explain its work in plain language, that is a warning sign. Also ask how quickly they handle updates, since seasonal promotions and hours changes need to go live fast.
Also ask how many other HVAC companies they serve in your market. An agency working for three shops in the same city has a conflict of interest. It also helps to ask for a couple of current HVAC clients you can call, and to check whether those shops still own their sites. A good agency will be glad to share references. Heights Digital works month to month, you own your site and profile, and you can call or text (210) 729-4008 to ask us any of these questions directly.
Send the site over. We will tell you what is broken, what you could rank for, and whether AI search knows you exist. No charge and no pitch deck.
