🎯 Your Next Best Move
- Get the repair quote itemized — parts, labor, and expected unit life after the repair
- Apply the 5,000 Rule: unit age × repair cost. Over $5,000? Lean replace. Under? Repair.
- Text PJ before signing anything over $3,000 — especially full replacement quotes
Over $5,000 → lean replace | Under $5,000 → repair usually wins
When to repair vs replace — honest breakdown
✅ Repair makes sense when...
- Unit is under 10 years old
- Repair is under $800 for a standard fix
- Only one component failed (capacitor, relay, coil)
- Unit has been well-maintained
- You're planning to sell in 1–3 years
- Refrigerant is R-410A (not legacy R-22)
⚠️ Consider replacing when...
- Unit is 12+ years old
- Compressor has failed ($1,200–$2,800 repair)
- R-22 refrigerant unit (being phased out)
- Second major failure in 2 years
- Repair cost exceeds 50% of new unit cost
- Energy bills have climbed significantly
San Diego replacement cost reality (2026)
Know what you're being asked to spend before agreeing:
- Mini-split (1 zone): $2,500–$5,000 installed
- Central AC (2,000 sq ft home): $4,500–$8,500
- Central AC + new ductwork: $8,000–$15,000
- High-efficiency unit (20+ SEER): add $1,000–$2,500
Always get at least 2 quotes on replacement. Prices for identical units vary $1,500–$3,000 in the San Diego market.
Questions to ask before replacing
- What specifically failed, and why won't repair hold for 3–5 more years?
- Is the ductwork in good condition, or does it need work too?
- What SEER rating are you recommending and why?
- Does this include permits? (Required in SD for most replacements.)
- What's the warranty on parts and labor?
- Are there SDG&E or rebate programs that apply?
Get all answers in writing. A contractor who won't commit in writing is a contractor worth a second opinion call.
Frequently asked questions
When should I repair vs replace my AC in San Diego?
The standard rule: if repair cost exceeds 50% of replacement cost AND the unit is over 10 years old, replacement is usually smarter. A $2,500 compressor repair on a 12-year-old unit is almost always the wrong call. A $400 capacitor fix on an 8-year-old unit is almost always worth it.
What is the 5,000 Rule for AC decisions?
Multiply the unit's age (years) by the repair cost. If the result exceeds $5,000, replacement is typically better value. Example: 10-year-old unit × $600 repair = $6,000 → consider replacing. Same unit × $200 repair = $2,000 → repair it.
How much does AC replacement cost in San Diego in 2026?
New central AC typically runs $4,500–$10,000 installed depending on unit size, brand, and ductwork condition. Mini-splits are $2,500–$7,000. Always get at least 2 quotes — pricing in SD varies widely.
What are signs I'm being pushed into an unnecessary replacement?
Warning signs: contractor won't itemize why repair won't work, same-day pressure to sign, refuses to show you the failed part, claims "parts aren't available" for a unit under 15 years old. Get a second opinion on all of these.
Got a replacement quote you're not sure about?
Text PJ a photo of the quote. We'll tell you if the math makes sense, what questions to push back with, and whether to get a second opinion first.
Text PJ Now →Related: HVAC Second Opinion San Diego · Free Second Opinions · AC Repair Cost San Diego
