Whether it is better to lease or own your fleet of HVAC service vehicles will depend on your specific business needs, goals, and financial situation. Here are a few factors to consider:

1. Upfront costs: Purchasing a fleet of HVAC service vehicles can be a significant upfront expense, while leasing typically requires a smaller down payment or security deposit. If you don't have the funds available to purchase a fleet of vehicles outright, leasing may be a more feasible option.

2. Monthly payments: Leasing typically involves lower monthly payments than purchasing, which can help to free up cash flow for other business expenses. However, over the long term, leasing may end up being more expensive than purchasing. Many leasing companies offer gas cards, unlimited mileage, and vehicle replacement if yours breaks down (significantly decreasing downtime while your vehicle is in the shop for repairs).

3. Customization: When you purchase your own fleet of HVAC service vehicles, you have the ability to customize them to meet your specific needs and branding requirements. With a lease, you may have limited options when it comes to customization. Some leasing companies can make the customizations for you and include it in the service, taking the hassle of wrapping, shelving and tracking a breeze.

4. Maintenance and repair: When you lease a fleet of vehicles, the leasing company is typically responsible for maintenance and repairs. When you own your own fleet, you'll be responsible for these costs, which can add up over time. If your stuck with a fleet of aging vehicles and can't afford to put your techs in something more reliable (and appealing), you may save quite a bit of yearly revenue by making the switch.

5. Long-term plans: If you're planning to expand your business or increase your service area, purchasing your own fleet of vehicles may be a better long-term solution. However, if you're unsure about your future needs, leasing may offer more flexibility.

Ultimately, the decision to lease or own your fleet of HVAC service vehicles will depend on a range of factors, including your budget, cash flow, and long-term plans. It may be helpful to consult with a financial advisor or business consultant to help you make the best decision for your specific situation.