24-Hour Emergency AC & Heating Repair

24-Hour AC Repair in Houston, TX — Call (281) 277-7557 Now

If your air conditioning or heating has failed and you need help right now, call (281) 277-7557. Alief Ultra Mechanical runs true 24/7 emergency dispatch across Houston and the surrounding suburbs — nights, weekends, and holidays. A live dispatcher takes your call, a licensed technician (TX License TACLA011844E) gets routed to your home, and you get a clear upfront price before any work begins.

What Counts as an HVAC Emergency?

Call us immediately — any hour — if you are dealing with:

• No cooling during a heat advisory. Indoor temperatures in a Houston home can pass 90°F within hours of an AC failure; this is a health risk for children, seniors, and pets.
• No heat during a freeze. Rare, but when a front drops Houston below freezing, a dead furnace or heat pump can mean burst pipes on top of a cold house.
• Water pouring from the indoor unit or ceiling. A clogged condensate line or frozen coil can cause real drywall damage fast — shut the system off and call.
• Burning smells, breaker trips, or electrical odors from HVAC equipment. Cut power to the system at the breaker and call before running it again.
• Refrigerant line ice or a compressor screeching. Running a unit in this state turns a repair into a replacement.

What Happens When You Call

1. You talk to a person. Describe the symptom — no cooling, water, noise, smell — and your location.
2. We dispatch the nearest on-call technician. We are based at 9636 Keegan Rd in southwest Houston, so response times across Alief, Houston, Sugar Land, Pearland, Cypress, Jersey Village, and Pasadena are short.
3. You approve an upfront price. The technician diagnoses the actual fault and quotes the fix before touching a wrench. No overnight-surprise line items.
4. We repair it — or make it safe and return with parts. Most emergency calls (capacitors, contactors, condensate clogs, blower faults) are fixed on the spot from truck stock.

Why Houston Homeowners Call Us at 2 AM

We are a family-owned Houston company rated 4.8 stars by more than 144 Google reviewers, licensed and insured under TACLA011844E, and an authorized Trane dealer. We do not use emergency calls as a sales channel: if a repair will safely get you through the night, that is what we recommend. If the system genuinely needs replacement, we will show you why and price options — including financing — the next morning, not under pressure at midnight.

While You Wait for the Technician

• No cooling: set the thermostat fan to ON, close blinds, and run ceiling fans — move to the coolest room.
• Water leak: turn the system OFF at the thermostat and put a pan under the drip.
• Electrical smell: shut the system off at the breaker and leave it off.
• Ice on the lines: turn cooling OFF and the fan to ON so the coil can thaw before we arrive.

Prevent the Next Emergency

Most middle-of-the-night failures we see — seized capacitors, clogged drains, worn contactors — are caught by a routine tune-up. A maintenance plan with seasonal AC tune-ups and furnace checks is the cheapest emergency repair you will ever buy. For non-urgent work, schedule online or browse our air conditioning and heating services.