AC Repair & Diagnostics — Fast, Certified, Warranted
When your air conditioner stops working, every hour counts. NorTech Services dispatches certified AC technicians same-day in most areas — diagnosing the root cause, not just the symptom, with upfront pricing and a 1-year labor warranty on every repair.
Request a Free QuoteEvery AC repair is backed by NorTech’s 1-year labor warranty. If any issue returns within 12 months, we come back and fix it.
15% Off Your First AC Repair
New customers save on any AC repair or diagnostic service. Mention the code when you call or enter it at checkout.
Same-Day AC Repair & Diagnostics Nationwide
A malfunctioning air conditioner in Houston, Phoenix, Atlanta, or any Sun Belt city isn’t just uncomfortable — it’s a health risk. NorTech Services technicians are dispatched with fully stocked trucks, carrying the parts needed to resolve the most common AC failures on the first visit. We service all makes and models of central air conditioning systems, perform full refrigerant leak diagnostics, and back every repair with a written 1-year labor warranty. No guesswork. No upselling. Just a straight diagnosis and a fair price before we touch anything.
Before You Call — Run This Quick Check
These steps take under 5 minutes and may resolve your issue without a service call. Check each one before scheduling.
AC Repair & Diagnostic Services
We handle the full scope of AC repair — from a quick capacitor swap to a full refrigerant system overhaul. Here’s what’s covered.
AC Repair
Component-level repairs on all central AC systems, performed with manufacturer-matched parts and backed by a 1-year labor warranty.
We fix what’s broken — not what might be broken. Every repair starts with a confirmed diagnosis so you’re only paying for the work that’s actually needed.
- Capacitor & contactor replacement
- Refrigerant leak repair & recharge
- Compressor repair & replacement
- Evaporator & condenser coil service
- Blower motor & fan blade repair
- Drain line clearing & float switch reset
AC Diagnostics
Full system inspection and root-cause diagnosis — not a surface-level guess. We find the actual failure before recommending any repair.
Our diagnostic process checks every major system component and gives you a written report with findings, repair options, and upfront pricing before any work begins.
- Refrigerant pressure & leak test
- Electrical component inspection
- Airflow & duct pressure check
- Thermostat calibration check
- Condensate system inspection
- Written findings & repair estimate
Common AC Problems We Fix
Recognizing the symptom early can save you from a full system replacement. These are the most frequent AC failures our technicians diagnose across Houston, Dallas, Phoenix, Tampa, Orlando, and beyond.
AC Not Cooling
System runs continuously but the house stays warm. Most often caused by low refrigerant, a dirty coil, or a failing compressor. Don’t let it run — compressor damage escalates fast.
Refrigerant Leak
Ice buildup on the lines, hissing sounds, or a sudden drop in cooling performance all indicate a refrigerant leak. The leak must be found and sealed before recharging — otherwise the refrigerant will escape again.
Short Cycling
The unit kicks on, runs for a few minutes, shuts off, and repeats. This puts severe strain on the compressor and significantly increases energy costs. Common causes include low refrigerant, a dirty filter, or an oversized system.
Frozen Evaporator Coil
Ice on the indoor unit or refrigerant lines usually means restricted airflow or low refrigerant. Running the system while frozen can damage the compressor. Turn the system to fan-only and call for service.
Loud or Unusual Noises
Banging indicates a loose or broken component. Squealing points to a failing motor bearing. Clicking at startup that doesn’t stop often signals a bad relay or contactor. None of these are normal operating sounds.
AC Won’t Turn On
Could be a tripped breaker, a blown fuse, a failed capacitor, or a thermostat issue. Before calling, check your breaker panel and thermostat settings. If both look fine, the problem is likely electrical — call a tech.
All Major AC Brands Serviced
NorTech technicians are trained on all major residential central air conditioning brands and carry OEM-matched parts on every truck.
How Much Does AC Repair Cost?
AC repair costs vary depending on the type of failure, parts required, and your location. NorTech provides a written upfront estimate before any work begins — so you know exactly what you’re paying before a single panel comes off. Use code NORTECH15 to save 15% on your first service.
Diagnostic Visit
Full system inspection with written findings and a repair estimate before any work is approved.
Minor Repairs
Capacitor swaps, contactor replacements, drain line clearing, and thermostat fixes are typically resolved in a single visit.
Refrigerant Service
Leak detection, sealing, and refrigerant recharge priced by job after a confirmed diagnosis — not per pound estimates.
Major Component Repair
Compressor, coil, and blower motor repairs are quoted in full before work begins, with parts and labor included.
What Homeowners Say About NorTech AC Repair
“AC stopped blowing cold on a Saturday. Tech was at my house by noon, found a bad capacitor, and had it fixed in under an hour. Price was exactly what they quoted on the phone. No surprises.”
“I had two other companies tell me I needed a full replacement. NorTech diagnosed a refrigerant leak, sealed it, and recharged the system. Unit has been running perfectly for six months. Saved me thousands.”
“Good experience overall. The tech was thorough and explained everything clearly. Took about two hours to track down the issue — a clogged drain triggering the float switch. Fixed same day.”
“Woke up to the AC frozen solid. Called NorTech at 7am, tech arrived by 10. Low refrigerant from a slow leak — found it, fixed it, back to cold air by early afternoon. Professional from start to finish.”
“My AC was short cycling and running my power bill through the roof. NorTech found an oversized charge from the previous owner’s installer. They corrected it and the system has been running efficiently since.”
“Scheduling was quick and the tech knew his stuff. Compressor contactor was burnt out — had the part on the truck. Only reason for 4 stars is the two-hour arrival window is a bit wide, but they showed up on time.”
AC Repair — Frequently Asked Questions
Straight answers to what homeowners ask most before scheduling AC repair.
The most common causes are low refrigerant due to a leak, a dirty evaporator coil restricting airflow, a failing compressor, or a clogged air filter. A technician can pinpoint the exact issue with a full diagnostic and resolve it in a single visit in most cases.
Most AC repairs are completed in 1 to 3 hours. Simple fixes like capacitor replacements or refrigerant recharges take under an hour. More involved repairs like coil cleaning or compressor work may take 2 to 4 hours. Our technicians carry the most common parts on the truck to avoid return trips.
AC repair costs depend on the type of failure, parts required, and your location. NorTech provides a written estimate before any work begins so you know the full cost upfront. Use code NORTECH15 for 15% off your first service.
If your unit is under 10 years old and the repair cost is less than half the price of a replacement, repair is usually the right call. Units over 15 years old with repeated failures or rising energy bills are strong replacement candidates. Our technicians give you an honest assessment of both options before recommending anything.
Banging or clanking usually means a loose or broken component inside the unit. Squealing points to a worn belt or failing motor bearing. Rattling often indicates debris in the system or loose housing panels. Any unusual noise should be diagnosed promptly — mechanical problems escalate quickly when ignored.
No. Refrigerant handling requires EPA 608 certification and specialized equipment. Adding refrigerant without first finding and fixing the leak is also a waste of money — the refrigerant will simply leak out again. A certified NorTech technician locates the leak, seals it, and recharges the system to manufacturer specs.
Short cycling is usually caused by an oversized unit, low refrigerant, a dirty air filter, a failing thermostat, or a refrigerant leak. It puts significant strain on the compressor and drives up energy costs. Left unaddressed, it can lead to full compressor failure.
Yes. Every AC repair performed by NorTech Services is backed by a 1-year labor warranty. If the same issue returns within 12 months of service, we come back and fix it at no additional labor charge.
AC Repair Available Nationwide
NorTech dispatches AC repair technicians across major metros. View our full service territory.
AC Not Working? We Can Have a Tech There Today.
Same-day AC repair dispatch available in most service areas. Get a free, no-obligation estimate from a certified NorTech technician. Use code NORTECH15 for 15% off your first service.
