
AC Repair
AC REPAIR IN NORTH LOUISIANA
No cold air, weak airflow, or a frozen unit? We find the real cause and fix it — most calls same-visit. Licensed techs, flat-rate pricing, answered live 24/7.
4.9 · 4,400+ reviews
Verified Google reviews
4.9★ on Google
4,400+ reviews
24/7 Emergency
60–90 min dispatch
Licensed & insured
LA Master Plumber #1874
North Louisiana
Ruston to Shreveport
Flat-rate pricing
Quoted before we start
Overview
The right fix, not just a refrigerant top-off
When a Louisiana summer is running 95-plus with the humidity to match, a broken air conditioner isn't an inconvenience — it's a house that won't cool down until dark, and often not even then. Mark Johnson & Sons gets a licensed tech to your door fast, diagnoses what's actually wrong, and quotes a flat-rate repair before we turn a wrench. We've kept North Louisiana homes cool since 1997, and the phone is answered live 24/7.
Most no-cooling calls come down to a handful of failures: a blown start/run capacitor, a burned contactor, a frozen evaporator coil from low airflow, a condenser choking on dirt and heat, or a refrigerant leak. The difference is knowing which one — and not just dumping R-410A into a system that's leaking it right back out. That's a repair that fails in three weeks and costs you twice.
What we fix
- Electrical failures — start/run capacitors, contactors, relays, and control boards, the most common no-start cause
- Motors — condenser fan motors and blower motors, tested under load, not swapped on a guess
- Refrigerant leaks — R-410A and older R-22 systems; we leak-search, seal, and recharge to spec instead of topping off
- Airflow & freeze-ups — dirty coils, failed blowers, and low-charge freeze-ups that ice the copper lines
- Compressors — the big one, where the honest repair-vs-replace conversation starts
- Every major brand: Carrier, Trane, Lennox, Goodman, Rheem, York, American Standard, Bryant, Amana, plus Daikin and Mitsubishi mini-splits
Repair vs. replace
If your system is under 10–12 years old and the failed part is a capacitor, contactor, or motor, repair almost always wins. A dead compressor, an old R-22 unit that needs a costly recharge, or a third breakdown in two summers tips the math toward replacement — and a newer high-efficiency system noticeably cuts a North Louisiana cooling bill. We give you real numbers on both and let you decide, no pressure.
What Mark Johnson & Sons does differently
Our trucks carry common capacitors, contactors, motors, and refrigerant, so most repairs finish the same visit. No subcontractors — the tech on-site is on our payroll and accountable to the job. You get a photo, a written diagnosis, and a flat-rate price before any work starts, and the service call is waived when you do the repair with us. Ask about our service savings agreement plans — it puts you at the front of the line on a heat-wave day and takes 15% off the repair.
Free quote
Same-day AC repair quote
Tell us what the system's doing — no cold air, tripping breaker, ice on the lines — and we'll get a licensed tech out fast with a flat-rate price before we start.
4.9★
24/7
Emergency
Free
Quote
Current coupons
View allFREE
Service call waived with your AC repair
Diagnostic fee applied to the repair. One per visit.
Expires 12/31/2026
15% OFF
AC repair for service members
Service savings agreement required. Ask us to enroll on the spot.
Expires 12/31/2026
$25 OFF
Any AC repair over $250
Standard pricing. Mention at booking.
Expires 12/31/2026
Mention coupon when booking. One offer per household.
Warning signs
Signs Your AC Needs Repair
In North Louisiana heat, a struggling AC rarely fixes itself. If you're seeing any of these, call before it quits completely on the hottest afternoon of the year.
Air is blowing but it's warm or barely cool
Weak airflow from the vents even with the fan running
Ice or frost on the copper lines or the indoor coil
Unit runs constantly and never reaches the set temperature
Warm air plus a hissing or bubbling sound (possible refrigerant leak)
Loud humming or a click-then-nothing when it tries to start
Water pooling around the indoor unit or a clogged drain line
Breaker keeps tripping when the AC kicks on
Energy bill spiked with no change in how you're running it

24/7 dispatch
AC quit in a heat wave? We answer live and roll out.
No cold air when it's 98 degrees isn't something to sit on — especially with kids or older family at home. Emergency AC calls get a licensed tech on-site fast, any hour, any day across North Louisiana.
Most repairs
Same day
Across Ruston, Monroe, Shreveport, Bossier City, and North Louisiana.
The Process
How an AC Repair Call Goes

On the truck
Professional tools, parts, and diagnostics — every call.
On-phone triage
We ask what the system is doing — no cold air, tripping breaker, ice on the lines — and whether anyone in the home is medically vulnerable to the heat. That sets the priority.
Full diagnostic on-site
The tech checks refrigerant charge and pressures, the capacitor and contactor, the compressor and fan motors, the coil, and the condenser. You get a photo and written diagnosis — the actual cause, not a guess.
Flat-rate quote before we start
You see the part-plus-labor price up front. If we find a refrigerant leak, we quote the leak repair — not just a recharge that leaks out again in weeks.
Same-visit fix in most cases
Common capacitors, contactors, motors, and refrigerant ride on the truck, so most repairs wrap the same visit. Cool air back on before we leave.
Test and verify
We confirm supply-air temperature drop, amp draw, and refrigerant charge to spec, then walk you through what failed and how to keep it from happening again.
Pricing
How We Price AC Repair in North Louisiana
Flat-rate, quoted before we start — and the diagnostic is waived when you have us do the repair. An after-hours surcharge applies nights, weekends, and holidays. Service members get 15% off every repair.
Flat rate, quoted before we start
You get the full price for the job up front — not an hourly meter you watch climb. You approve it before a tool comes out of the truck.
The quote is the price
It doesn't move once work begins. If something unexpected turns up behind a wall or under a slab, we stop and talk it through with you before going further.
Service members save 15% on every repair
Service savings agreements start at $189 a year and take 15% off all plumbing, heating, and cooling repairs, with priority scheduling on every call. The Premium Service Savings Agreement Plan adds same-day service and drops after-hours charges entirely.
Financing available
Bigger jobs — a system replacement, a repipe, a sewer line — can be financed through GoodLeap. Apply online in a few minutes.
Every job is priced for your home and what it actually needs — tell us what's going on and we'll get you a firm number, free and with no obligation.
Service Savings Agreement Plans
Two plans. Whole-home peace of mind.
From $189 a year, service members get 15% off every plumbing, heating, and cooling repair, two complete HVAC tune-ups, a free plumbing and drain check-up, and priority scheduling on every call.
- 15% off repairs
- Priority scheduling
- 2 HVAC tune-ups/yr
- After-hours discounts
- $25 savings certificate
- Guaranteed flat-rate
Service Savings Agreement Plan
$189/year
Everything it takes to keep the house maintained and your repairs discounted.
Each additional HVAC unit is $89/year
Premium Service Savings Agreement Plan
$389/year
Everything in the Service Savings Agreement Plan, plus no after-hours charges, no travel fees, and same-day service.
Each additional HVAC unit is $89/year
Questions? (318) 319-0220
1-year term · does not auto-renew
Compare
Repair vs. Replace Your AC
When a repair gets expensive, the honest question is whether the money is better spent on a new system. Here's how the two stack up in a North Louisiana home.
| Feature | Repair | Replace |
|---|---|---|
| Best when | Under 10–12 yrs, minor part | 12+ yrs, R-22, or dead compressor |
| Downtime | Usually same visit | 1–2 days, scheduled |
| Summer electric bill | Same as before | Lower — higher SEER2 efficiency |
| Humidity control | Unchanged | Better dehumidification |
| Warranty | 90-day repair warranty | 10-yr parts on new equipment |
FAQ
AC Repair FAQs
In North Louisiana it's usually one of a few things: low refrigerant from a leak, a failed capacitor or contactor, a frozen evaporator coil from restricted airflow, or a condenser so dirty it can't shed heat. We diagnose the actual cause on-site and quote the repair flat-rate — we don't just top off refrigerant on a system that's leaking.
Related services
Related Cooling Services
These come up often on the same call as an AC repair.

AC Installation
When repair no longer makes sense — right-sized replacement, quoted flat-rate before we start.

AC Maintenance
A Spring tune-up catches the capacitor and coil problems that cause mid-summer breakdowns.

24/7 Emergency AC
No cooling in a heat wave? Licensed tech dispatched fast, any hour, any day.
Available Around the Clock
Emergency?
We answer 24/7.
Burst pipe, water heater out, sewer backup? Real plumbers pick up — no answering machines. Mark Johnson & Sons Plumbing serves North Louisiana any time, day or night.
LA Master Plumbing #1874 · Backflow Cert #28131 · Master Natural Gas Fitter #LMNGF9062 · State Contractors #35794