PostcardMania is one of the most HVAC-focused direct mail vendors in the country, with hundreds of published case studies from heating and cooling contractors. HVAC owners work with a strategist who builds the list (homeowners in a ZIP, past customers, new movers), designs a postcard, prints, and mails it, with response tracking.
Published HVAC results: American Home Heating & Air generated roughly $12,000 on a $2,901 campaign (314% ROI), Climate Master Mechanical earned $258,040 from 6,000 postcards, and MechaniTech HVAC Solutions closed $120,000 from a single 8-response campaign. The company averages about $20,000 in new business per 5,000-card drop.
PostcardMania is not the cheapest option but HVAC contractors who want someone to own the campaign strategy tend to land here. The company also offers digital retargeting, Google/Facebook ads, and list rentals.