The Heating, Air-conditioning & Refrigeration Distributors International (HARDI) released May 2026 sales data showing a 4.8% decline compared to May 2025. The drop signals weaker initial demand as contractors gear up for summer installation and replacement work. However, HARDI's seasonally adjusted sales data — which removes calendar and weather effects — pointed to near-flat performance, indicating the decline reflects timing and comparison quirks rather than a structural downturn in the market.

May typically sees distributors restocking ahead of peak cooling demand in June and July. A softer May can mean contractors are managing inventory more conservatively or waiting for confirmed service calls before ordering equipment. It can also reflect regional weather patterns: a cooler-than-normal May in key markets like Texas or the Southeast delays emergency replacements and discretionary changeouts. Distributors interviewed informally have noted tighter credit among smaller contractors and longer lead times on specific SKUs, particularly high-efficiency heat pumps and variable-speed air handlers, which may be causing hesitation at the counter.

For contractors, the May data should inform your June purchasing strategy. If you typically front-load two to three weeks of condensing units and coils in early May, consider whether your local distributor is sitting on excess stock — this is the moment to negotiate better payment terms or ask about rebate pass-throughs on 16+ SEER2 systems. Call your rep this week and confirm lead times on popular tonnages (2.5-ton and 3-ton splits remain the volume leaders). If you're carrying more inventory than usual, resist the urge to discount aggressively in Week One of June; historically, the first heat wave drives a spike that clears older stock at list price.

The seasonally adjusted flat trend also suggests that total 2026 demand may land close to 2025 levels, barring a major weather event or economic shock. That means planning conservatively: don't over-commit to exclusive vendor programs that penalize you for missing volume targets, and keep at least 15% of your equipment budget flexible for mid-season pivots. Distributors are watching the same data you are, and they'll be more willing to move aged inventory in early July if June numbers stay soft.

One question worth asking your distributor: how are they handling A2L refrigerant inventory transitions? If May sales were soft in part because contractors delayed orders waiting for more R-454B and R-32 equipment availability, June could see a catch-up surge as that stock arrives and gets promoted.