HVAC Repair in San Marcos, TX78667
Arctic Air Heating & Cooling dispatches licensed, insured heating and air conditioning technicians toSan Marcos and the 78667 ZIP code 24 hours a day, 7 days a week. Target response time in this service zone: 60-90 minutes.
Homeowners across San Marcos call us when the system simply will not keep up. Extended extreme heat, attic temperatures well above 140 degrees, and grid stress during heat waves are the norm. That is why we staff a live dispatch line around the clock instead of routing you to a queue.
Talk to a live dispatcher in San Marcos
Serving 78667 and Hays County — no phone trees, no callback waiting.
- 60-90 minutes target response time in this service zone
- Written diagnostic report with photos of what we found
- We repair what can be repaired — no forced replacement upsell
- Workmanship warranty on every job we complete
★★★★★4.9 average · 424 verified reviews
- Licensed & Insured Technicians
- Background-Checked Crews
- Upfront Flat-Rate Pricing
- Same-Day & Next-Day Service
- No Overtime Charges
- All Work Warrantied
The San Marcos78667 calls we answer most often
If your system is doing any of the following, it is worth a diagnostic before the fault gets more expensive.
Heat pump stuck blowing cold air in heating mode
Musty or burnt smell the first time the system runs
Pilot light or hot surface igniter failing repeatedly
Outdoor condenser humming but the fan not turning
Thermostat reading several degrees off from reality
Frozen evaporator coil or ice on the refrigerant lines
Heating and air conditioning service built around San Marcos
We keep licensed, background-checked technicians on the road in San Marcos and the surrounding 78667 service area, so a no-cool or no-heat call usually gets a same-visit fix rather than a return trip.
In the 78667 area we see a lot of attic-mounted air handlers. Attic heat soak in summer and cold-soak in winter both shorten component life and make insulation checks part of a proper diagnosis.
Peak cooling demand here runs March through November. Booking a tune-up in early spring means you are not competing with the whole neighbourhood for a tech in July.
Typical San Marcos service pricing
| Service | Typical Range |
|---|---|
| Diagnostic / service call | $70 – $140 |
| Capacitor replacement | $167 – $391 |
| Contactor replacement | $177 – $419 |
| Refrigerant leak repair + recharge | $298 – $837 |
| Blower motor replacement | $419 – $884 |
| Compressor replacement | $1,302 – $2,697 |
| Hot surface igniter / flame sensor | $149 – $372 |
| Furnace control board | $353 – $791 |
| Condensate drain / float switch | $121 – $316 |
| Thermostat install (wired or smart) | $140 – $419 |
| Duct cleaning (whole home) | $353 – $837 |
| Full system replacement (installed) | $5,580 – $12,090 |
Market ranges reported for San Marcos, TX and the wider South-Central region. Your flat-rate quote is confirmed on site before any work begins.
Services available in 78667
Residential and light commercial, all major brands, all hours.
Air Conditioning Repair in San Marcos
Diagnosis and repair for central air conditioners, heat pumps in cooling mode, ductless mini-splits and packaged rooftop units.
Furnace Repair in San Marcos
Gas, propane, oil and electric furnace troubleshooting and repair.
HVAC Installation & Replacement in San Marcos
Full system replacement and new construction installs with a Manual J load calculation so the equipment is actually sized for your home.
Heat Pump Repair & Service in San Marcos
Heat pump diagnosis and repair for both heating and cooling operation, including cold-climate units, defrost board failures, reversing valve problems, auxiliary heat strip faults and refrigerant charge issues.
24/7 Emergency HVAC Repair in San Marcos
Around-the-clock response for no-heat in freezing weather, total AC failure during a heat wave, gas smells, carbon monoxide alarms, water flooding from the indoor unit and complete system shutdowns.
Air Duct Cleaning & Sealing in San Marcos
Whole-home duct cleaning and aeroseal-style duct sealing to recover lost airflow, reduce dust and lower the load on your equipment.
HVAC Maintenance & Tune-Up in San Marcos
Seasonal precision tune-ups that catch failing components before they strand you.
Commercial HVAC Service in San Marcos
Service for light commercial and commercial properties including rooftop packaged units, VRF and VRV systems, split systems, make-up air units and building automation controls.
What happens when you call
No forms, no waiting for a callback window. One phone call starts the whole process.
- Step 1: Call the dispatch lineYou reach a live dispatcher, not a recording. They confirm your address, the symptom you are seeing and how urgent it is.
- Step 2: Get matched to the nearest licensed techDispatch routes your job to the closest available licensed technician who already carries the common parts for your equipment.
- Step 3: On-site diagnosis with a flat quoteThe tech tests the system, shows you what failed and gives you a written flat-rate price before any work starts.
- Step 4: Approved repair, same visit when possibleMost repairs are finished on the first visit. If a part has to be ordered you get a firm return window, not a maybe.
Servicing San Marcos and Hays County
Our 78667 coverage zone centres on San Marcos and extends to the surrounding communities listed below. Every technician dispatched into this area is licensed, insured and background-checked, and every job carries a workmanship warranty.
What San Marcos homeowners say
“Booked a tune-up and got a written report with photos. First time a company has actually documented anything for me.”
— James O., verified San Marcos customer
“They found a cracked heat exchanger that our previous company missed for two years. That alone was worth the call.”
— Sandra B., verified San Marcos customer
San Marcos78667 HVAC questions, answered
How often should I change my filter in 78667?
Monthly inspection and replacement every 60 to 90 days is the baseline. Homes in San Marcos with pets, ongoing construction nearby, or a high-MERV filter in an undersized return should move to monthly changes. A loaded filter is the single most common cause of frozen coils and failed blower motors.
How quickly can a technician get to San Marcos?
For the 78667 service area our target response time is 60-90 minutes from the moment dispatch confirms your address. Real-world timing depends on the day — the first sustained heat or cold snap of the season is always our busiest period — but we hold technicians locally specifically so that window is achievable rather than aspirational.
What does a new system cost in San Marcos?
A complete residential replacement in the 78667 area generally lands between $6,000 and $13,000 installed, depending on capacity, efficiency rating and how much ductwork has to be modified. We always perform a Manual J load calculation first, because an oversized unit costs more to buy and runs worse than a correctly sized one.
Do you handle ductless mini-split systems?
Yes. Ductless installations have grown quickly in Texas, particularly in older homes without existing ductwork. We service indoor heads, clean filters and drain lines, check line-set insulation and diagnose communication faults between heads and the outdoor unit.
Is my carbon monoxide risk something I should worry about?
With any combustion appliance, yes. A cracked heat exchanger can spill carbon monoxide into the living space, and it is odourless. We perform combustion analysis and a CO test on every furnace and boiler call in San Marcos, and we recommend a working CO alarm on every level of the home regardless of who services your equipment.
Are your technicians licensed and insured?
Every technician dispatched into San Marcos is licensed, insured and background-checked. We can provide proof of insurance on request before the visit if you would like it on file.
HVAC service near San Marcos, TX
We also cover these Texas communities with the same 24/7 dispatch line.
Need HVAC help in San Marcos 78667?
Whatever the make — York, Bryant, Heil or anything else — call (866) 548-3173. Our crews in the 78667 area service all major residential and light commercial brands.
(866) 548-3173Answered 24 hours a day, 365 days a year