Air Conditioner Repair
Central AC units of all brands and ages. We troubleshoot refrigerant issues, compressor failures, electrical problems, and more.
Request repair→Fast, accurate diagnostics from a Master HVAC Contractor. We find the real problem — not just the symptoms.
Serving Richmond, Midlothian, Henrico, Chesterfield & surrounding areas
A broken AC in July or a furnace that won't start in January isn't just uncomfortable — it's urgent. You need someone who can diagnose the real problem, explain your options clearly, and get your system running again.
At DNA Heating & Cooling, we don't guess. Our diagnostic process is thorough and systematic, designed to find root causes rather than just treating symptoms. Whether it's your air conditioner, heat pump, furnace, or boiler, we'll figure out what's wrong and give you honest options for repair or replacement.
We offer same-day service and after-hours appointments because we know HVAC problems don't wait for convenient timing.
We diagnose and repair all major heating and cooling systems. Whatever equipment you have, we can help.
We repair and service all system types, though we specialize in heat pump installations for replacements. If your system needs replacing, we'll walk you through your options — including whether a heat pump might be a better long-term solution.
Not sure if you need a repair visit? Here are the most common signs Richmond homeowners notice before calling us:
Noticing any of these? Call (804) 944-4900 for same-day service.
(804) 944-4900Our $149 diagnostic fee covers a comprehensive evaluation performed by a Master HVAC Contractor. This isn't a quick look or a guess — it's a structured troubleshooting process designed to identify what's actually wrong.
We verify heating and cooling operation, confirm thermostat signals and system response, and identify any abnormal cycling, lockouts, or failures.
We measure voltage and amperage, test low-voltage circuits, verify safety switches, and inspect control boards, relays, capacitors, and transformers.
For AC and heat pump systems, we take refrigerant pressure readings, analyze superheat and subcooling, identify leak symptoms, and evaluate the compressor and metering devices.
We measure temperature split, test static pressure, inspect the filter, coil, and blower, and identify any airflow restrictions or duct-related issues affecting performance.
We evaluate the condensate drain, verify overflow protection, and assess moisture-related failure risks that could cause water damage or system shutdowns.
For gas and oil systems, we inspect flame quality, evaluate draft and venting, test safety controls including limits, rollouts, and pressure switches, and check for carbon monoxide risks.
We identify wear, corrosion, leaks, vibration, and mechanical failure risks. We inspect wiring integrity and overall component condition.
We explain what's failing and why, present repair options with pricing, identify any code issues or safety concerns, and highlight future risks or preventative improvements.
When we're done, you'll understand exactly what's wrong with your system and what it will take to fix it. No jargon, no pressure — just clear information so you can make the right decision.
While every system is different, these are some of the most frequent repairs we perform:
Capacitors help start motors and keep them running. When they fail, your AC or furnace may not start or may shut off unexpectedly.
Contactors control electrical flow to your compressor and motors. Worn contacts cause starting problems and system failures.
Clogged condensate drains cause water backups, safety shutoffs, and potential water damage. Regular cleaning prevents these issues.
Faulty thermostats cause temperature inconsistencies, failure to start, and communication errors between your thermostat and system.
The control board is your system's brain. When it fails, your system may not respond correctly or may not work at all.
These are just the most common issues. Whatever's wrong with your system, we'll diagnose it accurately and give you honest repair options.
We know HVAC problems are urgent. A broken AC in summer or a failed furnace in winter can't wait for a convenient appointment three days from now.
That's why we offer same-day service and after-hours appointments. When your system goes down, call us — we'll do everything we can to get a technician to your home as quickly as possible.
System down? Call Now
(804) 944-4900Every diagnostic and repair is overseen by a Master HVAC Contractor with a Class A license and over 15 years of experience. No inexperienced technicians, no guesswork.
Our diagnostic process is comprehensive and systematic. We don't just replace parts until something works — we identify the actual cause of the failure.
If your system can be repaired cost-effectively, we'll repair it. If replacement makes more sense, we'll tell you that too — and explain why.
HVAC emergencies don't wait, and neither do we. We offer same-day and after-hours appointments to get your system running again as quickly as possible.
DNA Heating & Cooling provides HVAC repair services throughout the Richmond metro area. We service:
Not sure if we serve your area? Call us — if you're within 30 miles of Richmond, we can probably help.
Don't wait for a small problem to become a big one. Call DNA Heating & Cooling for fast, accurate diagnostics and honest repair recommendations. Same-day service available. After-hours appointments for emergencies.