It's 94 degrees outside and your AC is running but not cooling. Or it's making a sound you've never heard before. Or it's tripped the breaker twice this week. These aren't hypotheticals in Shreveport — they're the reason hundreds of local homeowners make the repair-or-replace call every summer. The wrong call costs you either way.
The math on this decision isn't complicated once you have the right information. Here's the framework Shreveport homeowners should use.
A technician's diagnosis costs $75–150 and tells you exactly what's wrong. Many problems that look like AC failure are actually simpler fixes — a dirty air filter, a tripped breaker, a stuck contactor, a clogged condensate drain. These cost under $200 and don't require a replacement conversation.
Industry standard for HVAC decision-making: if a repair costs more than 50% of what a new system costs, replace it. In Shreveport, a new 16 SEER central AC system runs $5,000–9,000 installed. That means a repair over $2,500–4,500 on an aging unit is worth reconsidering.
The reason isn't just cost — it's probability. An AC that needs one major repair has a high chance of needing another within 12–24 months. In an older unit (10+ years), those repairs start stacking up.
AC units in Shreveport last 12–15 years on average. Units over 15 years are operating at reduced efficiency — often 60–70% of rated capacity — and are more likely to have multiple failing components.
Find the age on the outdoor unit's nameplate (the metal data plate). The first 4 digits of the serial number usually encode the year and month of manufacture: "1234XXXX" means manufactured in the 12th week of 34 (20XX). If you can't read it, a technician can decode it.
| System Age | General Recommendation | Why |
|---|---|---|
| Under 5 years | Always repair | Still in manufacturer warranty; repair rarely exceeds 50% rule |
| 5–10 years | Repair if under 50% of replacement cost | Still in efficient operating range; replacement ROI is 8–12 years |
| 10–12 years | Evaluate carefully — get a second opinion | Efficiency declining; one major repair may trigger a replacement conversation |
| 12–15 years | Run the 50% rule strictly | Approaching end of reliable service life; frequent repairs likely ahead |
| 15+ years | Strongly consider replacement | Operating at 60–70% efficiency; new 16 SEER units save 20–30% on energy |
If your AC won't turn on, won't maintain temperature, or cycles too often, the thermostat is often the culprit. A miscalibrated or failing thermostat can make an otherwise healthy system look broken. BC Handyman replaces or recalibrates thermostats for $100–200 — and this is one of the most common "I thought my AC was dying" diagnoses.
The run capacitor stores energy and starts the outdoor fan motor and compressor. When it fails, the outdoor unit runs but doesn't cool — you hear a humming sound but no airflow from the vents. Capacitors degrade faster in Louisiana heat. Replacement is straightforward: $150–300. If the capacitor fails on an 8-year-old unit, fix it.
The contactor is the electrically-controlled switch that turns the compressor and fan on and off. In Shreveport's summer heat, contactors pit and burn over time. You'll notice the outdoor unit humming but the fan not moving — or it kicks on and off repeatedly. Replacement is $200–400. If this is the only repair needed on a unit under 12 years old, it usually makes sense.
The condenser fan motor on the outdoor unit runs constantly during cooling season. Bearing failure from heat and dust is common in Shreveport — you'll hear a grinding noise or no noise at all from the outdoor unit. Fan motor replacement runs $250–450 depending on the model. On a unit 8–12 years old, it's worth considering alongside the 50% rule.
The compressor is the heart of the system — and the most expensive component to replace. Compressor failure after 10 years often signals the unit is simply aging out. At $1,200–2,500 for the repair, you're approaching or past the 50% rule threshold on an older unit. Replacement may be the better call. BC Handyman can diagnose and advise — and will recommend a licensed HVAC contractor for compressor work.
| Repair | Typical Cost | Worth Fixing? |
|---|---|---|
| Thermostat replacement | $100–200 | Yes, always |
| Condensate drain clear | $75–150 | Yes, always |
| Run capacitor | $150–300 | Yes, on units under 12 years |
| Contactor replacement | $200–400 | Yes, on units under 12 years |
| Condenser fan motor | $250–450 | Evaluate on age + 50% rule |
| Compressor replacement | $1,200–2,500+ | Evaluate on age; often triggers replacement |
| Full system replacement | $5,000–9,000 | Units 12+ years or repair > 50% of this |
BC Handyman diagnoses AC problems and handles minor repairs in Shreveport and Bossier City — same-day when available. Free estimate. We'll tell you straight whether repair or replacement makes sense.
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