Air conditioners rarely fail at convenient times. More often, it happens on the hottest Saturday afternoon of the year, at 9 p.m. on a Tuesday, or during a long holiday weekend. For residential HVAC contractors, summer brings more than just an increase in demand, it brings a surge of calls during hours when many shops aren’t fully staffed to handle it.
To better understand that shift, we analyzed inbound calls across residential HVAC contractors on the ServiceTitan platform throughout 2025. The data shows a clear seasonal pattern: as temperatures rise, a larger share of customer calls arrive outside standard business hours.
What the data tells us
In June 2025, 14.1% of inbound calls to residential HVAC shops arrived outside business hours. During October, that figure fell to 9.8%, the lowest point of the year. That represents roughly a 45% relative increase in off-hours call share during one of the industry’s busiest seasons.
The same pattern appears across both off-hours categories measured in the analysis:
After-hours weekday calls peaked at 9.3% of inbound calls in June, compared to 6.8% in October, a 37% relative increase.
Weekend calls peaked at 4.9% of inbound calls in August, compared to 2.95% in October, a 67% relative increase.
These findings are based on aggregated inbound call activity captured directly on the ServiceTitan platform across residential HVAC contractors active throughout 2025.
What “off-hours” means in this analysis
For this analysis, standard business hours were defined as Monday through Friday, 8 a.m. to 5 p.m. in each contractor’s local time zone. Any call outside that window was categorized as off-hours, including weekday evenings, early mornings, and all hours on weekends.
Calls were evaluated using each contractor’s local time zone, meaning a 7 p.m. call in Phoenix and a 7 p.m. call in Boston were both treated as after-hours events regardless of UTC timing.
The primary metric in this analysis is off-hours share of inbound calls. Summer naturally brings higher call volume overall, but the goal was to determine whether customer behavior itself changes during peak season. The data suggests it does. Off-hours calls increase not only in volume, but also as a percentage of total inbound demand.
Where the summer spike happens
The increase in off-hours demand is not evenly distributed across the day. The largest concentration appears during evening hours, particularly between 5 p.m. and 9 p.m. local time.
That timing aligns with the common homeowner experience of returning home and discovering the house has become uncomfortably hot during the day.
The early morning window, roughly 6 a.m. to 8 a.m., also sees elevated activity during summer months, though the increase is more moderate. In many cases, those calls likely come after a difficult night without adequate cooling.
Why this matters for HVAC contractors
For HVAC contractors, the operational pressure compounds quickly during peak summer months. Shops are already managing full schedules, increased service demand, and stretched technician capacity. At the same time, a growing share of new customer demand arrives during periods when office staffing may be limited or unavailable altogether.
Off-hours calls also tend to be high-intent moments. Customers are uncomfortable, frustrated, and often looking for the first contractor who can respond quickly. If they reach voicemail or experience long delays, many will immediately move on and search for another provider.
Seasonal after-hours demand is not new to the trades. What this data clarifies is when those pressure points are most likely to occur, particularly during summer evenings and weekends, giving contractors a clearer opportunity to plan accordingly.
What this means for your shop
For residential HVAC businesses preparing for peak season, the data raises several important operational questions:
How well is your shop staffed between 5 p.m. and 9 p.m. during the summer months?
What happens when customers call after hours or on weekends?
Do calls route to a technician, answering service, dispatcher, voicemail or voice agent?
How quickly does a customer receive a response after making first contact?
The right approach will vary by company size, staffing model, and market. A larger business with dedicated after-hours dispatching capabilities may handle demand differently than a smaller operation with limited resources. But the underlying trend that during summer, a larger share of customer demand arrives outside traditional business hours, remains consistent
How ServiceTitan helps HVAC contractors capture summer demand
ServiceTitan provides HVAC contractors with the tools needed to manage inbound demand at every stage, from call intake and intelligent routing to dispatching, scheduling, and customer follow-up.
During the evening and weekend windows where off-hours demand spikes significantly, ServiceTitan’s Virtual Agent helps contractors answer customer calls when the office is closed, capture key information, and book appointments without requiring customers to wait for a callback.
See how ServiceTitan helps HVAC contractors capture more demand around the clock.
Based on internal analysis of aggregated, anonymized data from participating ServiceTitan customers' inbound HVAC residential call records, January 2025 through December 2025. Off-hours are defined as weekdays before 8:00 AM and after 5:00 PM, plus all weekend hours, in each contractor's local time zone. Figures reflect tenant-weighted averages across a same-store cohort of contractors with activity in all 12 months of 2025 and are not nationally representative. Customers who opted out of industry data sharing were excluded. This analysis describes observed call-timing patterns and does not establish a causal relationship between off-hours call volume and any business outcome, technology, or product category. Individual results will vary.
