Furnace & heating
AC repair
Heat pumps
Ductless mini splits
Carrier
Trane
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Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Get your free estimateFast, Reliable AC Installation Across Castle Hills
AC installation in Castle Hills typically runs $3,500 – $7,500 for a complete system replacement, and most jobs take one to two days once equipment is on site. Castle Hills is our home turf, and the houses here are unlike what crews in San Antonio’s newer suburbs see every day. We know West Avenue traffic patterns, we know the mid-century floor plans off Hitching Post Lane, and we know exactly why a by-the-book install fails in a 1950s custom home with original round ductwork and a shallow attic. Call (254) 271-2545 for a written quote before any work starts.
Why Meadowsweet Heating and Air San Antonio Is Castle Hills’s Preferred AC Installation Company
Luis Serrano leads our installation teams, and he has spent enough afternoons in Castle Hills crawlspaces to know what works here and what does not. We answer every call with a live person, day or night, and when a Castle Hills homeowner calls about an AC that quit on a 100°F afternoon, we get a uniformed, background-checked technician out the same day. Before any work begins, you get a written price. No exceptions.
Our crews follow the Cedarwell Care Promise on every Castle Hills job: shoe covers and drop cloths protect wood floors and hallway runners, and we send a photo of the cleanup before we leave. That standard comes from being part of the Cedarwell family of HVAC companies, founded in 2004, and it is why homeowners here trust us around kids, pets, and the furniture that has been in the family for two generations. AC Installation is not a commodity when the house was built before central air was standard, and we treat every Castle Hills home like it belongs to someone who notices details.
Styles & brands we work with
Ductless Mini Split Installation in Castle Hills
Ductless Mini Split Installation in Castle Hills is often the smartest answer for older homes with shallow attic clearances, sealed crawlspaces, or room additions that never got proper ductwork. A ductless system pairs an outdoor condenser with slim indoor wall or ceiling units, connected by a small refrigerant line instead of bulky ducts. In Castle Hills, where many 1950s and 60s custom homes still run on furnace-era round metal ducting, going ductless can bypass the airflow problems entirely. A typical ductless mini split installation in Castle Hills runs $3,500 – $7,500 depending on the number of indoor units and the layout of the house.
When Ductless Beats Forcing New Ductwork
If your Castle Hills home has a low-pitch roof, a tight attic, or pier-and-beam construction that makes running new ducts invasive, a ductless system usually costs less than a full duct replacement and heats and cools more evenly. We install Daikin and Bryant ductless systems regularly in Castle Hills, and homeowners like that each room gets its own temperature control instead of fighting a single thermostat.
Installation Process in Castle Hills Homes
The work is quieter than many people expect. We protect floors around the work area, drill a small opening for the line set, and mount the indoor unit on an exterior wall. Most ductless installs in Castle Hills finish in a single day, and the indoor units are far less obtrusive than window units.
AC Replacement in Castle Hills
AC Replacement in Castle Hills is rarely as simple as swapping an old condenser for a new one, and a like-for-like swap without a fresh load calculation is exactly why some rooms stay hot even after a new system goes in. Homes in Castle Hills were built when central AC was an afterthought, so original duct runs were sized for furnace-only air delivery. A new high-efficiency system moving more air through undersized ducts will underperform from day one if nobody checks the numbers. A typical full AC replacement in Castle Hills runs $3,500 – $7,500, and our written quote includes whatever transition fittings, drain pan upgrades, or electrical work the job actually requires.
Why the Old Ductwork Has to Be Part of the Conversation
Castle Hills homes with original round metal ducts in tight crawlspaces need custom transitions, because an off-the-shelf rectangular plenum will not fit and forcing one in chokes airflow and drives up static pressure. Our techs keep custom transition fittings in stock for exactly this reason.
Electrical Panel Reality Check
A 1950s-era 60-amp panel was never meant to handle a modern condenser’s startup load. We inspect the panel during the estimate so you are not blindsided by breakers tripping on the first hot afternoon after the install.
Trusted Brands We Service in Castle Hills
Meadowsweet Heating and Air San Antonio services and installs equipment from nine leading manufacturers, including Carrier, Trane, and American Standard, so whatever brand you already have or want, our techs know it. For Castle Hills customers that matters, because we keep common parts and fittings for these systems on our trucks and in local stock, not in a warehouse across the metro. That means faster turnarounds when a capacitor fails in July or a drain pan cracks on a Friday afternoon. We will recommend the right equipment for your home’s age and duct layout, not whatever is easiest to sell.
Common AC Installation Problems We See in Castle Hills Homes
- Undersized original ductwork. Duct runs sized for furnace-only air delivery cannot move enough air for a modern high-efficiency AC, so rooms on the far end of the house stay warm. We re-run load calculations instead of guessing.
- Square-edged plenums jammed into round-duct crawlspaces. Off-the-shelf rectangular fittings do not match original round metal ducts, and the mismatch chokes airflow. Our crews fabricate custom transitions on site.
- Aged 60-amp electrical panels. New 16-SEER2 condensers can trip breakers on the first 100°F afternoon if the panel has not been evaluated. We flag panel upgrades during the estimate, not as a surprise after the install starts.
- Humidity-driven drain pan issues. Castle Hills summers are long and humid, and aging coils produce more condensate than the original drain pans were built for. We upgrade pan size and slope during replacement to prevent mold and water damage.
See the difference
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After
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AfterPricing for AC Installation in Castle Hills, TX
Every estimate from Meadowsweet Heating and Air San Antonio is a written, fixed price before any work starts. For a full AC Installation in Castle Hills, plan on $3,500 – $7,500 depending on system size, efficiency rating, and what your existing ductwork and electrical panel can support. A like-for-like condenser swap on a ranch with good ductwork sits at the lower end. A ductless multi-zone system for a house with no usable attic space lands higher. Call (254) 271-2545 and we will put the exact number in writing, free.
| Service | Castle Hills Price Range |
|---|---|
| AC Replacement | $3,500 – $7,500 |
| Ductless Mini Split Installation | $3,500 – $7,500 |
Most Castle Hills AC replacement jobs are done in one to two days once equipment arrives. We never charge overtime for after-hours calls, and a live person answers the phone 24/7.
We Also Serve Cities Near Castle Hills
Beyond Castle Hills, our teams handle AC installation in Castle Hills and nearby communities including San Antonio, New Braunfels, Converse, and Live Oak. If you live just outside Castle Hills or have family in a neighboring city, the same written-price promise and same crews cover the whole area.
Serving Castle Hills, TX - Our Local Coverage Area
We’re based in the Castle Hills 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 Castle Hills
A load calculation is the only way to know whether your existing ductwork, insulation, and floor plan can actually support the system you are about to pay for. In Castle Hills, many 1950s and 60s homes were built with furnace-only duct runs, and a new AC sized by square footage alone will leave far bedrooms hot. We run the calculation before we quote, so the number on your written estimate reflects what your house actually needs. Call (254) 271-2545 and ask for a load calculation with your estimate.
Sometimes, but only if the transitions between the new indoor unit and the old round ducts are fabricated to match. In Castle Hills, many homes still have original round metal ductwork in tight crawlspaces, and off-the-shelf rectangular plenums will not fit without choking airflow. Our techs keep custom transition fittings in stock for exactly this reason. If the ductwork is too far gone, we will tell you plainly and walk you through ductless options.
If your Castle Hills home still has a 60-amp panel, the answer is usually yes. A modern high-efficiency condenser draws more on startup than the original furnace-era panel was built to supply, and ignoring that means breakers tripping on the first hot afternoon. We check the panel during the estimate and include any required upgrade in the written price, so there is no surprise line item after the install begins.
A ductless mini split is often the cleanest answer for Castle Hills homes with low-pitch roofs, sealed crawlspaces, or no practical space for new ducts. The indoor units mount on walls or ceilings and connect to the outdoor condenser through a small line set, so you keep your original floors and closets intact. We install Daikin and Bryant ductless systems here regularly, and most jobs finish in a day.
Castle Hills summers are long, humid, and routinely hit 100°F, which means a new high-efficiency coil produces more condensate than the original pan was designed to handle. An undersized pan overflows, and in a pier-and-beam home that water ends up in the crawlspace. We upgrade pan size and slope as part of the replacement, not as an add-on. Call (254) 271-2545 for a free estimate and we will explain exactly what your home needs.
Contact
If your Castle Hills AC is failing or you are planning a replacement before the next South Texas summer, call Meadowsweet Heating and Air San Antonio at (254) 271-2545. A live person answers, day or night, and we will schedule a free in-home estimate with a written price before any work starts. Luis Serrano and our Castle Hills crews will treat your floors, your pets, and your kids’ routines like they matter, because they do.
Written by Luis Serrano, Owner at Meadowsweet Heating and Air San Antonio, serving Castle Hills with written-price AC installation and the 365-Day Done Right Promise.