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Before
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Before
AfterAC Replacement in Houston, TX
Replacing a central air conditioner in Houston typically costs between $6,500 and $14,500 depending on system size, efficiency rating, and whether your ductwork needs updating. Before you commit to replacement, consider whether our ac repair installation services might extend your current system’s life. The job usually takes one full day for a straightforward swap, and most Houston homeowners replace their system every 12 to 15 years. At Dalton Heating & Air Houston, we put the full price in writing before any work starts, and every replacement carries a written guarantee for a full year under The Garrison Standard. Call us at (903) 494-7686 for a free replacement estimate.
We’re the home services team Houston homeowners call when their old unit is done and they want the next one installed right the first time. If your current system is still limping along, our AC Repair & Installation in Houston page covers repair options. This page is for homeowners who already know the old unit is finished and need straight answers on replacement cost, timing, and what to expect.
When You Need AC Replacement
Not every breakdown means replacement. But in Houston’s climate, where the AC runs hard from May through October, certain failures signal the end of the line. Here are the signs we see most often:
- The system is over 12 years old and needs a major repair. A failed compressor on a 14-year-old unit is a $1,800 to $3,200 fix. Spending that on a system that old rarely makes sense.
- Your energy bills keep climbing despite regular maintenance. Older units lose efficiency as they age. A 10 SEER system from 2008 uses roughly 40% more electricity than a modern 16 SEER unit to produce the same cooling.
- The system still uses R-22 refrigerant. R-22 was phased out of new production in 2020. Recharging it now costs $150 to $300 per pound, and supplies keep tightening. Most R-22 systems are 2010 or older.
- Rooms are unevenly cool and the system runs constantly. This often means the unit is undersized or the ductwork has failed. A replacement with a correctly sized system solves what repair work can’t.
- Repairs in the last two years total more than half the cost of a new unit. At some point, repair bills become a down payment on a system that still fails in August.
- Humidity indoors is noticeably worse. In Houston’s Gulf Coast air, a struggling AC that can’t pull moisture out of the house is a sign the system has lost capacity.
Our AC Replacement Process
We follow a set replacement process on every job in Houston. It’s not negotiable and it’s not optional. It’s The Garrison Code, and it’s been the same since 2003.
- Free in-home estimate. We measure the square footage, check the existing ductwork, inspect the electrical panel, and calculate the cooling load. This takes about 45 minutes and there’s no charge for it.
- Written proposal with exact pricing. Before you decide anything, you get a written quote showing the equipment model, the efficiency rating, the labor, and the total price. No ranges, no “we’ll see when we get in there.” The price is the price.
- Equipment ordering and scheduling. We stock common sizes and order specialty units direct from the manufacturer. Most replacements in Houston are installed within three to seven days of your approval.
- Full-day installation. Our background-checked, uniformed technicians arrive inside the stated window, remove the old equipment, install the new system, and run it through a full startup sequence. Most straight swaps are done in one day.
- Cleanup and walkthrough. We remove all old equipment, packaging, and debris from the property. Then we walk you through the new thermostat, the filter location, and the maintenance schedule.
- Written guarantee and registration. Your replacement is covered by our 365-Day Done Right Promise in writing. We also register the manufacturer warranty for you so the parts coverage is active from day one.
AC Replacement Pricing in Houston
Houston AC replacement costs break down into three components: the equipment, the installation labor, and any ductwork or electrical modifications. Here’s what we see across the Houston market for standard residential systems:
- Entry-level 14 SEER system, 2 to 3 tons: $6,500 to $8,500 installed
- Mid-range 16 SEER system, 3 to 4 tons: $8,500 to $11,000 installed
- High-efficiency 18+ SEER system, 4 to 5 tons: $11,000 to $14,500 installed
- Ductwork replacement (if needed): $3,000 to $7,000 depending on home size
- Electrical panel or wiring updates: $500 to $2,000 if the old panel can’t support the new unit
What moves the price in Houston specifically: home size, insulation quality, and whether the existing ductwork was sized for the original system. Homes in older neighborhoods like Timbergrove and Glenbrook Valley often need ductwork updates that newer construction in Cypress or Katy doesn’t. We install Carrier, Trane, Lennox, and Goodman equipment, and we’ll tell you honestly which one fits your budget and your house, not which one we make the most margin on.
Every quote includes the full installation, the thermostat, the pad, the lineset flush, and the startup test. The price we write down is the price you pay. Call (903) 494-7686 for a free estimate and we’ll measure your home and give you exact numbers.
What to Look for in a Houston AC Replacement
Most Houston homeowners replace an AC once or twice in their lifetime. Here’s what separates a replacement that lasts 15 years from one that fails in five:
- Manual J load calculation. This is the engineering calculation that determines what size unit your house actually needs. Skipping it and “matching the old size” is how homes end up with oversized systems that short-cycle and never dehumidify properly. We do the calculation on every replacement.
- Correct refrigerant charge. A new system that’s overcharged or undercharged by even 10% loses efficiency and shortens compressor life. We weigh in the charge to manufacturer spec, not “good enough.”
- Proper airflow setup. New high-efficiency coils are taller and more restrictive than old ones. If the blower isn’t set correctly, the system underperforms from day one. We verify static pressure and blower settings on every install.
- Ductwork inspection. In Houston’s attic-heavy construction, ducts take a beating. We check for leaks, crushed runs, and proper insulation before recommending a replacement so your new unit isn’t fighting bad ductwork.
How Much Does AC Replacement Cost in Houston?
You’ll pay between $6,500 and $14,500 for a complete central AC replacement in Houston, with most mid-efficiency 3-ton systems landing in the $8,500 to $11,000 range. The final number depends on the SEER efficiency rating you choose, the brand, the size of the unit, and whether your ductwork or electrical service needs updating. A Carrier or Trane system costs more than a Goodman of the same size, but the difference shows up in sound levels, warranty length, and long-term reliability. At Dalton Heating & Air Houston, the quote you get is the price you pay, in writing, before any work starts. Call (903) 494-7686 for a free estimate with exact numbers for your house.
Can You Replace an AC in Houston the Same Day?
Yes, in most cases. If your existing system failed completely and you need cooling restored, we can often install a replacement the same day or next day when the equipment is in stock locally. Houston summers don’t wait, and we keep common condenser and coil sizes on hand for exactly this reason. Call (903) 494-7686 in the morning, and if we confirm the failure on site, you could have a new system cooling your house by that evening. The 365-Day Done Right Promise applies to emergency replacements just like planned ones.
FAQs – AC Replacement
Is it cheaper to repair or replace my AC in Houston?
It depends on the age of your system and what failed. As a rule, if the repair costs more than 30% of a replacement system and the unit is over 10 years old, replacement is the better financial move. A failed compressor on a 13-year-old unit is the classic example: you’d spend $2,000 to $3,200 on Compressor Repair to keep an aging system alive for maybe two more Houston summers. Call (903) 494-7686 and we’ll give you the repair cost, the replacement cost, and an honest recommendation.
What brand of AC should I buy in Houston?
The brand matters less than the installation quality, but we regularly install Carrier, Trane, and Lennox systems in Houston homes. Each has strengths: Carrier offers a deep lineup of efficiency options, Trane builds notoriously durable outdoor cabinets that hold up to Gulf Coast humidity, and Lennox leads in high-SEER efficiency ratings. The more important question is whether the installing company does a proper load calculation and follows the manufacturer’s startup procedure. We do both, and we stand behind every install with the 365-Day Done Right Promise.
How long does an AC replacement take in Houston?
A standard single-system replacement takes one full day, roughly 6 to 8 hours from arrival to cleanup. If ductwork modifications, new linesets, or electrical panel work are required, plan for two days. We’ll tell you upfront which category your job falls into and give you an exact schedule before we start.
How long should an AC system last in Houston?
A properly installed and maintained central AC system in Houston lasts 12 to 15 years. Houston’s heat and humidity push systems harder than in drier climates, so the lifespan skews toward the shorter end of that range. The two biggest factors in longevity are a correct installation from day one and annual maintenance. We recommend a spring tune-up every year, and our replacement installations are set up to be maintained by any qualified technician.
Do I need to replace my ductwork when I replace my AC?
Not always. If your existing ducts are properly sized, sealed, and insulated, they can stay. But we inspect every duct system during the estimate. In many Houston homes, especially those built before 2000, ducts have leaks that waste 20 to 30% of your cooling. In those cases, replacing the ducts with the AC is the only way to get the efficiency you’re paying for. We’ll show you the condition of your ducts during the estimate and quote replacement only if it’s needed.
Call Dalton Heating & Air Houston for AC Replacement
If your old system is done and you want a replacement installed by a crew that shows up on time, puts the price in writing, and stands behind the work for a full year, call us at (903) 494-7686. Marco Benitez and the Dalton Heating & Air Houston team serve homeowners across the Houston area, and we’ve been doing it under The Garrison Standard since 2003. The estimate is free. The price is written. The guarantee is a full year. Call today and get your new system scheduled before the next heat wave hits.
Written by Marco Benitez, Owner at Dalton Heating & Air Houston, serving Houston.