Get air conditioning repair, heating repair, and HVAC maintenance from a customer-first Maryland company. Rod Miller HVAC is not a corporate chain. We‘re family-owned, and have been since the beginning. That’s helped to define our level of HVAC service we provide to clients. Instead of viewing each call as one more obligation to check off from a busy, non-personal schedule, we’ve always viewed our customers as real people with real needs. They’re fathers, mothers, sisters, and sons. We’re honored to serve our customers. And we value our relationships with them. That’s why our President gave his home phone number to customers for decades – to make sure that they were receiving the best service possible.