AC Repair Cost in Houston, TX: Prices by Part & Problem

Houston AC repair price table (every common job)

Ranges aggregated from HomeGuide, Angi and HomeAdvisor cost guides and Houston-area contractor pricing pages, collected October 2026.

These are ranges, not quotes. The exact price for your system is confirmed after on-site diagnosis — call +1 (254) 256-1678.

Service call fees and after-hours rates

Every legitimate Houston HVAC company charges a diagnostic or service call fee of $75–$200 for a technician to come out, test the system and identify the failed part. Most credit the fee toward the repair if you approve the work — ask before booking. After-hours, weekend and holiday calls add a surcharge of $100–$300; during August heat waves some companies also extend their "after-hours" window into the evening. Two honest rules of thumb: the surcharge should be quoted on the phone before dispatch, and "free estimate" almost always means a free quote on new equipment, not free diagnosis of a broken one.

Price by part: what you are actually paying for

Capacitor — $100–$400

The single most common AC repair in Houston. The capacitor is a small cylinder that gives the compressor and fan motors their starting boost, and Houston's heat cooks them. The part itself costs $10–$50; you are paying for the diagnosis, the trip and the labor. If anyone quotes over $400 for a capacitor alone, get a second price.

Contactor — $150–$400

The contactor is the heavy-duty relay that switches 240V power to the outdoor unit. Its contacts pit and burn over thousands of cycles — and Houston systems cycle a lot. Often replaced together with the capacitor, which is why you see them paired on invoices.

Condensate drain line — $75–$250

Clearing a clogged condensate drain is cheap; ignoring it is not. A backed-up drain on an attic air handler puts water through your ceiling — see our guide to AC leaking water inside the house. Houston's humidity makes this a top-three service call every summer.

Fan and blower motors — $200–$1,500

The outdoor condenser fan motor runs $200–$700. The indoor blower motor splits by type: older PSC motors $300–$900, ECM variable-speed motors $600–$1,500. Details on our blower motor repair page.

Refrigerant — $50–$250 per pound

R-410A runs $50–$90/lb installed; phased-out R-22 runs $90–$250/lb. A system only needs refrigerant if it leaks — so the honest invoice pairs a recharge with leak detection ($150–$500). Details on the refrigerant leak repair page.

Coils — $900–$2,800

Evaporator coils ($900–$2,300) fail from formicary corrosion pinhole leaks; condenser coils ($900–$2,800) fail from corrosion and physical damage. Labor dominates: the refrigerant circuit must be recovered, opened, evacuated and recharged. On systems past 10 years, compare the coil price against a new condenser before approving.

Control board — $300–$900

The circuit board that runs the whole sequence. Gulf Coast thunderstorms and the power surges that come with them are a leading cause — a surge protector on the disconnect is cheap insurance. Board prices vary widely by brand, which is why the range is wide.

Compressor — $1,300–$2,800

The heart of the system and the most expensive common repair. By tonnage: roughly $1,300–$1,800 for 2-ton, up to $2,100–$2,800 for 5-ton. Always check the manufacturer parts warranty (5–10 years on most brands) and always make sure the capacitor and contactor were tested first. Full breakdown on the compressor repair page.

What moves the price in Houston specifically

• The calendar. A capacitor call in March is a routine visit; the same call during an August heat wave may carry emergency pricing and a longer wait. Non-urgent work is cheaper in spring and fall.
• The attic. A large share of Houston repairs happen in attics at 130–150°F, where work is slower and harder. Attic-mounted air handlers cost more to service than closet or garage units — that is reality, not padding.
• System age and refrigerant. Pre-2010 systems on R-22 cost dramatically more to recharge. Systems past their warranty period shift compressor and coil costs entirely to you.
• Brand. Proprietary parts (some Lennox and Trane components) cost more and take longer to source than Goodman or Rheem equivalents.
• Who you call. Houston has hundreds of licensed HVAC contractors, and labor rates vary. The diagnostic fee and the surcharge should always be quotable on the phone; a company that will not state them is telling you something.

Repair vs replace: the $5,000 rule, applied

Multiply your system's age by the repair quote. Over $5,000, replacement usually wins. Some Houston examples: a 7-year-old system needing a $600 blower motor scores 4,200 — repair it and move on. A 12-year-old R-22 system needing a $1,900 compressor scores 22,800 — that money belongs in a new system with a fresh 10-year parts warranty and modern efficiency, not in an old one. Between the clear cases, ask for both prices on the same visit. A new complete system in Houston typically runs $5,500–$12,000 depending on size, efficiency tier and duct condition — useful context when a repair quote crosses $1,500.

What repairs actually cost across the suburbs

Prices across Greater Houston are broadly consistent — the same supply houses serve Katy, Sugar Land, The Woodlands, Pearland and Cypress — with two real differences. Drive time: far suburbs at the edge of the range (The Woodlands is 35–50 minutes from central Houston) sometimes carry a modest trip consideration from smaller companies. Housing stock: the 1990s–2000s systems filling attics in Cinco Ranch and Cypress are hitting compressor and coil age together, so those calls skew toward big-ticket repairs, while inner-loop Heights bungalows see more drainage and retrofit ductwork work. Wherever you are, the diagnostic fee and repair price are quoted before work — see the pages for Katy, Sugar Land, The Woodlands, Pearland and Cypress.

How to pay less (without getting burned)

• Change the $20 filter on schedule — restricted airflow is behind a large share of frozen coils and dead blower motors.
• Hose down the outdoor condenser coil each spring; high head pressure from a dirty coil shortens compressor life.
• Book non-urgent repairs outside heat waves — pricing and availability are both better.
• Ask what was tested before accepting an expensive part. "The compressor is bad" without capacitor, contactor and winding tests on the ticket is a guess.
• Keep the diagnostic fee conversation upfront: amount, whether it is credited, and the after-hours surcharge if relevant.

Methodology and sources

Ranges on this page are aggregated from national cost guides (HomeGuide, Angi, HomeAdvisor) cross-checked against Houston-area contractor pricing pages and customer reports, collected October 2026. They describe the Houston market for typical residential work; your quote can legitimately fall outside the range for unusual access, obsolete parts or multi-failure systems. We update this page when the market moves. We do not copy any single source's table, and no figure here is invented.