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.
HVAC Company in Magnolia, TX
Most Magnolia homeowners pay between $150 and $650 for AC repair, $150 and $700 for furnace repair, and $3,500 to $7,500 for a full AC installation, with same-day response available when your system fails in summer heat. Coldharbour Heating & Air dispatches technicians to Magnolia from our Dallas-Fort Worth scheduling office, and we’re familiar with the specific problems this area’s rapid suburban buildout created: oversized builder-grade systems, attic installations that cook components, and the humidity loads that make proper sizing essential rather than optional. If your system is acting up, call us at (817) 402-2972. A live person answers the phone 24 hours a day, 7 days a week.
Why Magnolia Homes Are Different
Magnolia’s explosive growth through the 2010s and 2020s transformed pine forest and ranch land along FM 1488 and FM 2978 into thousands of new-construction tract homes. That speed came with a cost: builder-grade HVAC systems were routinely oversized, installed in super-heated attics without proper duct sealing, and never balanced for Southeast Texas latent humidity loads. Many of those systems are now hitting their first major replacement cycle at 10 to 15 years old.
The housing stock splits into two distinct categories. The dominant type is 2005 to 2022 slab-on-grade builder homes in subdivisions carved from Montgomery County pine forest and pastureland, where attic air handlers are nearly universal and those attics routinely exceed 140°F in summer. That heat accelerates capacitor and contactor failure and causes flex-duct boots to sag and separate. The secondary tier is older rural farmhouses, mobile homes, and hobby-farm properties on multi-acre lots, where aging propane furnaces or window-unit cooling often need full replacement rather than patchwork repair.
Unlike more established suburbs closer to Houston, Magnolia still has a large share of rural properties on propane. Our technicians regularly scope all-electric heat-pump systems and propane dual-fuel setups on the same street. Winter Storm Uri in February 2021 hit unincorporated Montgomery County subdivisions especially hard because many newer all-electric homes had no gas service and relied entirely on electric heat strips, which failed under ERCOT load-shedding. Since then, dual-fuel heat pump upgrades have become a locally distinctive option, made feasible because propane infrastructure already exists on many adjacent rural parcels.
Magnolia sits squarely in the Southeast Texas humidity belt, where outdoor dew points routinely hit 75 to 78°F from May through September. An oversized system that short-cycles will leave homes clammy at the thermostat setpoint, making correct Manual J latent-load calculations essential rather than optional. Summer heat indices regularly exceed 105°F, pushing poorly ventilated attics into temperature ranges that shorten equipment life well ahead of manufacturer ratings.
Our Main Magnolia Services
Magnolia homeowners call us most often for cooling repairs in the brutal summer months and heating repairs when cold fronts sweep through, plus full system replacements when those builder-grade units finally give out. Each service has its own dedicated Magnolia page with deeper detail.
AC Repair in Magnolia
AC repair in Magnolia means dealing with capacitor and contactor failures from attic heat, refrigerant leaks at corroded line sets, and short-cycling systems that never reach setpoint because they were sized for square footage alone without accounting for humidity load. We stock capacitors, contactors, and hard-start kits for the major brands installed in local subdivisions, and we carry refrigerant to recharge systems that have leaked. Our technicians are trained to spot when a repair is a band-aid on an oversized system that will keep failing. AC Repair in Magnolia covers common failures, pricing, and what same-day response looks like in your neighborhood.

Furnace Repair in Magnolia
Furnace repair in Magnolia spans two very different worlds: suburban homes with all-electric heat pumps and heat strips, and rural properties with propane furnaces that may be 20-plus years old. After Uri, we’ve seen increased demand for dual-fuel conversions that pair a heat pump with propane backup, giving homeowners resilience when the grid strains. We service igniters, flame sensors, gas valves, and heat exchangers, and we always check for cracked heat exchangers on older propane units because that’s a carbon monoxide risk. Furnace Repair in Magnolia explains what we check, what repairs typically cost, and when replacement makes more sense.

AC Installation in Magnolia
AC installation in Magnolia requires more than swapping a box. Because so many existing systems are oversized, we run Manual J load calculations that account for latent humidity, not just temperature. We specify duct sealing and balancing because Magnolia’s attic heat destroys systems that can’t move air efficiently. For homes with propane access, we often quote dual-fuel heat pump systems that cut summer electric bills and provide reliable winter backup. Installations are scheduled, not same-day, because proper sizing, permitting, and equipment ordering take time. AC Installation in Magnolia covers the full process, pricing, and financing options.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Magnolia
Our technicians are trained to service nine major residential HVAC brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. We stock common capacitors, contactors, and control boards for Rheem, York, and Daikin systems in our local inventory, which means faster repairs when those components fail in a Magnolia attic. Most brand-specific parts that we don’t carry can be sourced next-day through our Dallas-Fort Worth distribution network. our brands
Pricing for HVAC Company in Magnolia, TX
| Service | Typical range in Magnolia |
|---|---|
| AC Repair – minor (capacitor, contactor) | $150-$350 |
| AC Repair – moderate (refrigerant leak, fan motor) | $350-$500 |
| AC Repair – major (compressor diagnosis, coil work) | $500-$650 |
| Furnace Repair – minor (igniter, flame sensor) | $150-$300 |
| Furnace Repair – moderate (gas valve, control board) | $300-$500 |
| Furnace Repair – major (heat exchanger, blower motor) | $500-$700 |
| AC Installation – standard replacement | $3,500-$5,500 |
| AC Installation – high-efficiency or dual-fuel | $5,500-$7,500 |
| Tune-Up / Seasonal Maintenance | $80-$200 |
What pushes Magnolia jobs toward the higher end: attic access difficulty in tight new-construction spaces, refrigerant line set replacement when copper has corroded, and duct sealing or modification when original flex duct has degraded. We hand you a written price before any work begins, and that price does not change at the door. This is The Kingswell Way, not a policy we apply case by case.
Neighborhoods We Serve in Magnolia
We work throughout Magnolia’s developed areas and surrounding unincorporated Montgomery County, from the densest subdivisions off FM 1488 to scattered rural properties on county roads. Most calls are answered with same-day or next-day scheduling, and emergency response is available when a failed system creates a health risk in extreme weather.
- Westwood
- Del Webb Sweetgrass
- High Meadow Ranch
- Tamarron
- Mostyn Manor
Service Area – Cities Near Magnolia
Our technicians regularly cross into neighboring communities for repairs and installations, especially when homeowners in subdivisions near municipal boundaries aren’t sure which city they’re technically in. We also serve Pinehurst, TX, Montgomery, TX, Tomball, TX, and Waller, TX from the same dispatch operation that covers Magnolia.
Serving Magnolia, TX - Our Local Coverage Area
We’re based in the Magnolia 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 HVAC Company in Magnolia
We typically schedule same-day or next-day service for Magnolia calls, and we prioritize true emergencies where extreme heat creates a health risk, especially for households with elderly residents or young children. Our phones are answered by a live person 24 hours a day, 7 days a week, so you never wait until morning to get on the schedule. Call (817) 402-2972 and we’ll give you a firm arrival window.
Magnolia itself is largely unincorporated Montgomery County, so permit requirements depend on your specific subdivision and any HOA rules rather than a single city building department. We handle permitting for full system replacements and know which jurisdictions apply to your address. For most repairs, no permit is required. We’ll tell you upfront if your job needs paperwork.
Yes. Because Magnolia still has many rural properties and newer subdivisions with propane access, our technicians are trained to service propane furnaces, dual-fuel heat pump systems, and all-electric setups. We carry combustion analysis equipment to check propane furnace safety and efficiency. If you’re considering converting from propane to a heat pump or adding dual-fuel backup, we can scope both options and give you written pricing for each.
What happens when you call
- 1A real person answersNo phone trees - talk to a local hvac pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Magnolia Customers Say
"The repair was done well and quickly. Scheduling over the phone was a little clunky and I got transferred twice, but the tech himself was great and on time."
- Brett Haygood"Furnace was short cycling all winter. They diagnosed a bad sensor instead of condemning the whole unit like I feared. Cheap fix, honest call."
- Russ Tiedemann"Thermostat and a weak blower. Fixed both in one visit, explained the guarantee, and didn't leave a mess. I've already recommended them to my neighbor."
- Natalie Esposito







Before
After
Before
After
Before
After