Frequently Asked Questions
Straight answers to the questions we hear about repairs, replacement, maintenance and what to expect when you call.
Last updated
When you call Oak Grove
What happens when I call?
We work 24 hours a day, Monday through Saturday, and are closed on Sundays. If our answering system picks up, it will prompt you to leave a message for the office for next-business-day service, or for the technician on call for after-hours service. A technician then inspects your indoor and outdoor units, finds the source of the problem and explains what it will take to fix it.
What are your hours?
We work 24 hours a day, Monday through Saturday, and are closed on Sundays.
How quickly can you get to me?
We normally get to everyone the same day. During the summer, it can sometimes be the next day. All customers are treated the same: first come, first served, along with location relative to other calls.
What areas do you serve?
We serve Hattiesburg, Oak Grove, Petal, Purvis, Sumrall, Seminary, Lumberton, Laurel, Ellisville, Columbia and Dixie. If you are not sure, give us a call. See our service areas.
Do you work on homes and businesses?
Yes. We have served residential and commercial customers since 1978.
Signs your system needs attention
How do I know something is wrong?
Common signs include weak airflow, uneven temperatures, a system that turns on and off every few minutes, new noises or smells, a house that feels humid, ice on the refrigerant lines, water around the indoor unit and power bills that climb without explanation.
What should I check before I call?
Check the thermostat setting and batteries, look for a tripped breaker, and replace a dirty filter. If you smell gas or a carbon monoxide alarm sounds, leave the house and call your gas company or 911 from outside.
AC and heating repair
Why is my AC running but not cooling?
It could be a dirty filter, a dirty coil, a failed part or low refrigerant from a leak. If the filter and thermostat look fine, it is time for a technician to take a look. Read more about AC repair.
Why is my heater blowing cool air?
Sometimes the thermostat is set to "fan on." Other times it points to an ignition problem on a furnace, or a heat pump problem. Read more about heating repair.
Which systems and brands do you work on?
We work on furnaces, heat pumps, central air and ductless mini-splits, and we sell and work on all brands.
Is your work under warranty?
Service calls come with a 30-day warranty. Parts are covered by the manufacturer's warranty.
System replacement
How long does an HVAC system last?
It varies with the equipment, how much it runs and how well it is maintained. Many air conditioners and heat pumps last around 10 to 15 years. If yours is in that range and needs a major repair, it is worth comparing repair and replacement.
Are estimates free?
Estimates for new installations and system replacements are free for our local customers. If you are farther away, the visit is handled as a service call. If you go ahead with the installation, we remove that fee, or subtract it from your installation invoice if you have already paid it.
How long does installation take?
Most full system installations take one full day. Replacing a compressor or coil is a repair that usually takes just a few hours. New construction is the main case where a job can run longer than a day.
Maintenance agreements
How often should I have my system serviced?
We recommend twice a year: spring and fall.
What comes with an agreement?
Two visits a year, each with a precision tune-up and inspection, plus 10% off repairs, including parts, labor and freon. The discount does not apply to installations. See the full checklist on our maintenance agreements page.
What does it cost?
Call us at (601) 268-3486 for current pricing. Commercial contracts are priced based on your units and filter sizes.
How do I renew or cancel?
Our office sends out renewals. To renew, mail in your payment or call to pay. To stop the service, just call and let us know.
Financing and payment
Do you offer financing?
Yes, financing is available. There is no preapproval, so the application is done once you have chosen the exact amount and plan. See our financing page.
Can I pay my bill online?
Yes. Use the Pay Now link at the top of this site.
Didn't find your answer?
Call our team and we will be glad to help.