Hays County, TX

San Marcos HVAC
& Electrical, One Truck

Between forty thousand students, a river that keeps the air thick, and historic homes wired before air conditioning existed, San Marcos keeps an HVAC and electrical crew busy. We run the IH-35 corridor up here regularly — give us a call.

Call (830) 587-5790 service@callmoorhead.com
Licensed & Insured
Same-Day Service Available
Flat-Rate Pricing
Get a Free Quote Fast reply across San Marcos — usually same day.

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What We Do in San Marcos

Every Service.
One Truck.

HVAC and electrical under one license is a real advantage in a town this old — because in a downtown San Marcos home, the AC problem and the wiring problem are usually the same age. We fix both in one visit.

AC Repair
AC Repair

AC running but the house won't cool? Usually a capacitor or a refrigerant leak. We carry the common failures on the truck. Service call starts at $79.

See AC Repair
AC Installation
AC Installation

Replacing a system 10+ years old? We run a real load calculation, quote in writing, and size the unit to your San Marcos home — not the warehouse.

See AC Installation
Heating & Furnace
Heating & Furnace

Furnace won't light on the first cold front? We carry ignitors and flame sensors and check the heat exchanger for CO on every visit.

See Heating
Electrical Panels
Electrical Panels

200-amp upgrades and Federal Pacific / Zinsco removal — the panels insurers won't cover. Prices published, permits pulled, A/C load sized in.

See Panel Upgrades
Electrician
Electrician

Panel upgrades, EV chargers, surge protection, generators. One licensed company for the work most San Marcos HVAC outfits have to sub out.

See Electrical
Generac Generators
Generac Generators

Authorized Generac dealer. We size the standby unit to actually carry your A/C — the part most installers get wrong. Prices published.

See Generators
Ductless Mini Splits
Ductless Mini Splits

The garage that's an oven, the addition the system never reaches, the older San Marcos home with no ducts. Zoned comfort, one-day install.

See Mini Splits
Indoor Air Quality
Indoor Air Quality

Duct cleaning, UV lights, whole-house purifiers, dehumidifiers. San Marcos humidity is real — your indoor air doesn't have to suffer for it.

See IAQ Services
5★
457 Google Reviews
$79
Service Call — Flat
$99
Annual AC Tune-Up
Same
Day
Available Mon–Sat
Moorhead Service Company technician after a job in San Marcos, TX
Locally Owned
Seguin, TX — since 2009
Moorhead in San Marcos

We Know
San Marcos

Justin and Levi Moorhead have run this company out of Seguin since 2009, and San Marcos is a regular stop up the IH-35 corridor. We work the rental-heavy streets around Texas State, the historic homes off the Square, and the new master-planned growth out toward the Blanco River. Different problems, same straight answers.

Flat-rate quoted before we touch anything
You approve the price in writing first. If the job gets harder, that's our problem — not yours.
We tell you when repair is the right call
If the system's repairable, we say so. We won't push a $9,000 replacement on a unit that needs a $275 contactor.
Licensed for HVAC and electrical
When a job crosses trades, we handle it. No second company, no second visit.
Moorhead electrician working in a historic San Marcos home near downtown Up to NEC 2023 code
Historic Downtown

Beautiful Old Homes, Wiring to Match

The Victorian and Craftsman homes around Belvin Street and the Square are some of the prettiest in Central Texas, and a lot of them are running window-unit-era wiring behind the walls.

We bring the electrical up to NEC 2023 — panels, grounding, the dangerous two-prong outlets — without stripping the character out of the house. Quoted in writing before we touch a wall.

Call (830) 587-5790

What We See in San Marcos Homes

San Marcos is really three towns stacked together: a university rental market, a historic downtown, and a fast-growing edge of new subdivisions. Each one calls for something different.

University Rentals That Got Deferred

With Texas State driving a huge rental market, a lot of San Marcos houses have had maintenance put off for years. Filthy ductwork, filters nobody changed since the last lease, AC sized for a family but cooling a house packed with roommates. We get rentals back to honest working order and tell landlords the truth about what is worth fixing.

Historic Homes Off the Square

The older neighborhoods around Belvin Street and downtown have homes that predate central air entirely. That means undersized panels, two-prong outlets, ungrounded circuits, and sometimes knob-and-tube still in service. We modernize it safely and pull the City of San Marcos permit so it is documented for resale.

River Humidity and Indoor Air

The San Marcos and Blanco rivers keep the humidity up, and a tight house and a leaky house both struggle with it in their own way. Whole-house dehumidifiers, duct sealing, and UV lights in the air handler keep the mugginess and the mold pressure down. The river is the reason people move here. It does not have to live in your hallway closet.

New Growth Toward the Blanco

Master-planned communities like Blanco Vista and the 55-plus Kissing Tree brought a wave of new construction with builder-grade systems. Same story as everywhere — sized to a price, weak in a Texas August. We run a load calculation and fix the airflow once the warranty runs out.

Call Now
(830) 587-5790
Open 24/7 · Always Available
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San Marcos Quick Facts
→Serving Hays County
→Regular IH-35 corridor stop
→Historic-home rewiring
→Rental turn-arounds
→Licensed TACLB127071E
Moorhead Service Company technician on a job near San Marcos
Real Moorhead work
AC condenser service in Hays County
Licensed & local
Moorhead Service Company van on a San Marcos call
On the truck, in your neighborhood
Where We Work

All of San Marcos
& Hays County

From the rental streets around Texas State to the historic Square and the new builds toward the Blanco River, we cover San Marcos along the IH-35 corridor. A few of the areas:

Blanco Vista
Kissing Tree
Belvin Street Historic District
Blanco Gardens
Baker Creek Village
Bishop Crossing
Blanco Terrace
Downtown / The Square
Texas State Area
Hughson Heights
Willow Creek
Paso Robles
Every Service in San Marcos

San Marcos HVAC & Electrical Services

Each one has its own San Marcos page with local detail — pick what you need.

Cooling
AC RepairAC Installation & ReplacementAC MaintenanceDuctless Mini Split InstallationThermostat Repair & Installation
Heating
Heating & Furnace RepairHeat Pump Installation & Replacement
IAQ
Air Duct CleaningDuct SealingWhole House Air Purifier InstallationHVAC UV Light InstallationDehumidifier Installation & RepairHumidifier Installation & RepairAC & Furnace Air Filter ReplacementHeat & Energy Recovery Ventilator Installation
Electrical
Electrical Panel UpgradesElectrician ServicesGenerac Generator InstallationElectrical RepairElectrical Wiring & RewiringIndoor & Outdoor LightingEV Charger InstallationSmoke & CO Detector InstallationElectrical Inspection & Code ComplianceWhole Home Surge Protection
Straight Answers

San Marcos Questions

Regularly. The homes around Belvin Street and the Square often have undersized panels, two-prong ungrounded outlets, and sometimes knob-and-tube still in use. We modernize the electrical safely, keep the character intact, and pull the City of San Marcos permit so it is documented for resale.
Yes, and we will give you the honest version, not the maximum invoice. We handle AC repair, duct cleaning, filter and system service, and electrical across rental properties, and we tell you what genuinely needs doing versus what can wait — which keeps your tenants comfortable and your turnover costs sane.
The rivers keep the humidity high, so the AC alone often cannot keep up. A whole-house dehumidifier, duct sealing, and a UV light in the air handler usually solve it. We measure first and recommend only what your house needs.
We are in Seguin, a regular run up IH-35, and San Marcos is an established service area for us. There is no separate drive charge — you pay the flat service call, in writing, waived when you book the repair. Call before noon and same-day is often doable.
You would think so, but builder-grade systems are sized to a price and tend to show weak spots right after the warranty ends — usually a hot room and marginal airflow. A proper load calculation tells us whether it is a quick fix or something the builder shorted you on.
Customer Reviews

What San Marcos Customers Say

5.0★  ·  457 Google reviews

“Bought a 1920s home near the Square and the wiring was a patchwork. Moorhead brought it up to code, kept all the original charm, and pulled the permit. They clearly respect old houses.”

Eleanor B.
San Marcos, TX

“I manage rentals by the university and Moorhead is the only crew that tells me straight what needs fixing and what does not. Saved me from a new system a tech at another company swore I needed.”

Greg P.
San Marcos, TX

“Our house by the river was always muggy. They added a dehumidifier and sealed the ducts, came up from Seguin same week, and the price matched the quote exactly. Comfortable for the first time.”

Hannah R.
San Marcos, TX
See All 457 Reviews on Google

Need HVAC or Electrical in San Marcos?

We run the IH-35 corridor up your way. Call and we will get you scheduled.

(830) 587-5790 service@callmoorhead.com