Certified Air Masters LLC is a family-run heating and cooling company owned by Frank and Ruthand Mount Dora is part of our regular service area. When your air handler stops blowing cold, when the outdoor unit runs but the house never cools down, or when a system that has been patched one too many times finally needs replacing, we are one of the companies you can reach without calling a statewide call center first.
Most of what we do falls into two buckets: fixing cooling systems that have quit, and replacing systems that have reached the end of their useful life. That means diagnosing the fault properly before touching anything, telling you plainly what we found, and then either repairing it or laying out what a replacement would involve. If you are searching for HVAC repair in Mount Dora because something failed overnight, that is exactly the kind of call we take during business hours.
- Diagnosing cooling systems that are running but not cooling
- Full system replacement when a repair no longer makes sense
- Straight answers on whether to fix or replace, with the reasoning behind it
We would rather spend ten extra minutes finding the actual cause than guess at a part and have you call us back next week about the same problem. If a repair will get you a few more seasons, we will say so. If the system is past the point where repairs are worth your money, we will say that too, and you are free to get another opinion.
A written estimate before any work starts
You get a written estimate before work begins. Not a number mentioned in passing at the door, not a range that moves once the panel comes off — something written down that you can read, keep, compare, and sign off on. If the scope changes because we find something behind a panel that nobody could see from outside, that is a conversation first, not a line item on a bigger invoice later.
The point is simple: you should know the figure before the work happens, and you should still have the option to say no. That is how Frank and Ruth have chosen to run it.
Reviews you can read before you book
We would rather you check us out than take our word for it. Certified Air Masters LLC has customer reviews posted on Yelp, Angi, Facebook, Instagram and Nextdoor. Search the business name on any of those platforms and read what people have written. It is the most honest introduction we can offer a Mount Dora homeowner who has never used us before.
Hours, pricing and service area
Hours: Monday to Friday, 8:00am to 5:00pm. Saturday, 8:00am to 1:00pm. Closed Sunday. Those are the hours we work, and we would rather publish them clearly than imply round-the-clock coverage we do not provide.
On pricing, there is no published flat rate for repairs, because the honest answer depends on what is wrong. What we can commit to is the written estimate above, delivered before any work starts, so the cost is settled between us before tools come out.
Alongside Mount Dora we cover a wide stretch of Central Florida, including Tavares, Eustis, Leesburg, Zellwood, Apopka, Plymouth, Howey In The Hills, Astatula, Yalaha, Mount Plymouth's neighbors in Orange County, Ocoee, Winter Garden, Clermont, Groveland, Mascotte, Montverde, Ferndale, Oakland, Windermere, Gotha, Okahumpka, Center Hill, Sumterville, Webster, The Villages, Polk City, Davenport, Loughman, Intercession City, Kissimmee, Orlando, Altamonte Springs, Longwood, Maitland and Winter Park. If your address sits somewhere between those towns, ask and we will tell you straight whether we can get to you.
To book a visit in Mount Dora, email certifiedairmastersllc@gmail.com or call (689) 224-0820 during the hours listed above, and we will arrange a time that works for your schedule.