Seasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
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AfterFast, Reliable AC Installation Across Schertz
Most full AC installations in Schertz run $3,500-$7,500 and take one to two days, with a written fixed price delivered before any work begins. Our AC Installation crews coordinate dispatch from our San Antonio office and carry the full Kingswell parts inventory so we’re not waiting on a delivery truck to finish your job.
We’ve been working in Schertz since the first wave of Kensington Ranch and Crossvine builds went up in the mid-2000s, and we’ve watched this market shift from pure suburban tract homes to a patchwork of subdivisions, rural acreage, and the workshop-and-barndominium properties spreading toward the Seguin line. That mix matters for your install. A crew that only knows slab-foundation tract homes will miss the load calculation on a rural property with no wind shelter, no shade trees, and no natural gas line. We size for both. Call (817) 402-2972 for a free written estimate.
Why Coldharbour Heating & Air Is Schertz’s Preferred AC Installation Company
We’re independently owned and operated, part of the Kingswell network since 2003, and we answer our own phones with a live person 24 hours a day. Schertz homeowners know that when they call at 6 p.m. on a Saturday, someone picks up, takes the information, and gets a technician scheduled.
Our technicians are background-checked, uniformed, and trained on nine major residential brands including Rheem, York, and Daikin. They carry the written Kingswell Guarantee on every job: a fixed price before work starts, a firm arrival window, and the 365-Day Done Right Promise that brings us back at no charge if a repair fails within a full year.
We know Schertz’s specific housing stock. The DR Horton, KB Home, and Pulte builds from 2003-2015 dominate the area, and those builder-grade systems are now hitting their replacement window en masse. We also know the rural stretches off Lower Seguin Road and FM 1518 where propane and heat pumps are the only options. That local knowledge saves you from an undersized unit or a mismatched changeout.
Central Air Conditioning Installation in Schertz
Central Air Conditioning Installation in Schertz typically means replacing a split system with an outdoor condenser and indoor evaporator coil, or installing a complete new system in an addition or converted space. Most Schertz homeowners need this when their builder-grade unit passes 10-15 years, starts running constantly through July without holding temperature, or fails outright after a hard freeze. A new central air system in Schertz runs $3,500-$7,500, with the final price set by square footage, existing ductwork condition, and whether the electrical panel needs upgrading for a modern SEER2 unit.
Schertz’s specific climate demands careful sizing. Daily highs exceed 100°F for weeks at a stretch, and the cooling load runs May through October. A system that’s technically “big enough” on paper will struggle if the load calculation ignores high ceilings, open floor plans, or the radiant heat from an adjacent workshop or metal outbuilding.
Load Calculations for Exposed Properties
Out on a rural stretch off Lower Seguin Road near the Schertz-Seguin line, we replaced a failed builder-grade 3-ton condenser on a 2,400 sq ft open-plan home. But we ran a load calculation first and found the high ceilings and no wind shelter pushed the real load past 4 tons, so we upsized, set the new unit on a pad clear of the shop’s radiant heat, and programmed the thermostat to stage the heat pump for the outbuilding. The homeowner’s 2005 DR Horton subdivision system had been undersized its whole life; the new SEER2 unit now holds 74°F even at 102°F outdoor.
Ductwork Assessment and Modification
Many Schertz tract homes were built with ductwork sized for the original builder-grade unit, not for a modern higher-efficiency system with different airflow requirements. We measure static pressure and airflow at every install, and we’ll tell you upfront if the ducts need modification. No surprises, no callback because a room never cools.
Furnace Installation in Schertz
Furnace Installation in Schertz covers both gas furnace replacements and propane or dual-fuel systems for properties without natural gas access. A new furnace in Schertz runs $3,500-$7,500, same range as central air, because the full system changeout often includes the indoor coil, condensate drain rework, and thermostat upgrade. Schertz homeowners typically need furnace replacement after Winter Storm Uri in 2021 cracked heat exchangers that had never been stress-tested below 30°F, or when a 15-year builder-grade unit starts cycling on limit switch due to restricted airflow.
The rural Schertz market adds complexity. No natural gas in many pockets off FM 1518 or toward Marion means choosing between a propane furnace with buried tank or a cold-climate heat pump with electric backup. We’ll walk through fuel costs, rebate eligibility, and what your property can actually support.
Propane Versus Heat Pump for No-Gas Properties
Propane furnaces deliver hotter supply air and work in any temperature, but you’re locked into tank refills and volatile fuel pricing. Modern cold-climate heat pumps handle Schertz’s mild winters efficiently and switch to electric resistance only on the coldest nights. We size for the actual heating load, not a rule of thumb, and we’ll show you the operating cost comparison in writing.
Post-Uri Heat Exchanger Replacements
February 2021 froze systems that had never seen sustained teens. We still find cracked primary heat exchangers in Schertz homes where the original installer never checked for proper condensate drainage in freezing conditions. We inspect every heat exchanger with a borescope during our pre-installation assessment, and we document what we find.
Trusted Brands We Service in Schertz
Our technicians train continuously on Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. We stock common Rheem and York coils, capacitors, and contactors at our San Antonio parts hub, which means most Schertz installs don’t wait on a freight delivery. For Daikin and Bryant systems, we pre-order based on your load calculation so the unit arrives before your scheduled install date. We don’t push one brand. We match the equipment to your home’s specific load, your budget, and what’s actually available without a 6-week backorder.
Common AC Installation Problems We See in Schertz Homes
- Undersized builder-grade units in 2003-2015 subdivisions. DR Horton, KB Home, and Pulte frequently installed 3-ton systems on 2,400+ sq ft homes with 10-foot ceilings and open plans. The math never worked. We find these units running 18 hours daily in July and still losing ground.
- Hard water condensate clogs in legacy drain lines. The Schertz-Seguin water supply is notably hard, and builder-installed condensate drains from the 2000s were run with insufficient slope. Every July and August, we see float-switch shutdowns that could have been prevented with a proper drain redesign during install.
- Mismatched rural changeouts. A homeowner replaces the outdoor condenser but keeps the original propane furnace and indoor coil, leaving a heat exchanger or reversing valve that can’t communicate with the new unit. We quote complete matched systems, and we explain why mixing generations costs more long-term.
- No wind shelter on exposed rural properties. A condenser sitting in full sun on a concrete pad next to a metal shop faces radiant heat plus ambient. We relocate pads, add baffles where code allows, and specify higher-SEER units to handle the penalty.
Pricing for AC Installation in Schertz, TX
We’re transparent about what things cost because nobody likes a price that jumps at the door. Here’s what we see in the Schertz market:
| Service | Typical Range in Schertz |
|---|---|
| Central Air Conditioning Installation | $3,500-$7,500 |
| Furnace Installation | $3,500-$7,500 |
What moves you within that range? Square footage and ceiling height drive tonnage. Ductwork condition determines whether we modify or replace. Electrical panel capacity affects whether we need a service upgrade. Rural properties may need propane tank coordination or extended refrigerant line sets. We assess all of this during our free in-home estimate, then hand you a written fixed price before any work begins. That’s The Kingswell Way. Financing and utility rebate paperwork are available, and we handle the rebate submission so you don’t chase forms.
Call (817) 402-2972 to schedule your free estimate. Estimates are free, written, and no-obligation.
We Also Serve Cities Near Schertz
Our crews work daily in Schertz and the surrounding communities: Universal City to the southwest, Cibolo to the east, Converse to the west, and Marion to the south toward Seguin. Same written pricing, same 365-Day Done Right Promise, same live-answer phones. Dispatch and scheduling are coordinated from our San Antonio office, with technicians routed for same-day or next-day availability across the full service area.
Serving Schertz, TX - Our Local Coverage Area
We’re based in the Schertz area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About AC Installation in Schertz
A heat pump is usually the better choice for Schertz’s climate, where electric rates and mild winters make it cost-competitive with propane, but propane furnaces deliver hotter air and work in any temperature. We’ll compare your actual fuel costs, check rebate eligibility for heat pumps, and confirm whether your electrical service can handle the load. Call (817) 402-2972 and we’ll walk through the numbers on your specific property.
Hard Schertz-Seguin water plus shallow-sloped condensate lines installed by builders in the 2000s produces mineral buildup that blocks the drain pan. We redesign the drain with proper slope, add a cleanout, and can install a condensate pump where gravity drainage isn’t possible. If you’re replacing the indoor coil, we include drain rework in our scope so you don’t get that emergency shutdown call in peak summer.
Yes, we regularly condition workshops, barndominiums, and detached garages in rural Schertz. Mini splits work well for smaller outbuildings; central ducted systems make sense if the outbuilding is large and you’re already running refrigerant lines from the main house. We calculate the separate load for the outbuilding, account for radiant heat from metal construction, and specify equipment rated for the dust and temperature swings of a working shop.
If your home was built 2003-2015 and has the original system, it’s almost certainly undersized for the square footage and ceiling height, and it’s now at or past its reliable service life. We find these units running constantly, failing to hold setpoint, and costing 40-60% more to operate than a modern SEER2 replacement. A load calculation almost always reveals you need more tonnage than what’s installed. Replacement pays back in comfort and operating cost.
Most installations are completed in one to two days, including rural properties off Lower Seguin Road or toward the Marion line. We don’t charge extra for drive time, and we schedule your install with the full crew and parts on-site so we’re not making multiple trips. You’ll get a firm arrival window, not a vague “morning or afternoon” guess.
Written by Victor Mancini, Owner at Coldharbour Heating & Air, serving Schertz since 2003.