Proudly serving Katy & nearby areas 24 hours a day, 7 days a week · call (346) 527-0189
LOCAL HVAC · KATY, TX

HVAC Services in Katy, TX

Stellar Harbor HVAC Services keeps Katy homes comfortable through blazing Texas summers and the occasional cold snap that catches everyone off guard. From routine hvac maintenance to urgent ac repair calls, the team handles it all with straightforward diagnostics and honest recommendations.

  • Heating and cooling solutions fast
  • Heat pump repair done right
  • Local AC repair experts
HVAC technician inspecting an outdoor air conditioning unit at a suburban Katy Texas home on a sunny day Katy, TX
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WHAT WE DO

HVAC services for Katy homeowners

From routine upkeep to bigger repairs, here's how Stellar Harbor HVAC Services helps homeowners around Katy. Pick a service to learn more, or reach out with your questions.

AC Repair — HVAC in Katy
01

AC Repair

A struggling AC in a Katy summer is no small problem. Stellar Harbor HVAC Services diagnoses the root cause—whether it's a refrigerant issue, failing compressor, or electrical fault—and gets your system cooling again. Strange noises, warm air, or a unit that keeps cycling on and off are all signs worth addressing quickly. Ask about current scheduling availability.

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AC Installation — HVAC in Katy
02

AC Installation

Ready to replace an aging unit or upgrade to a more efficient system? We help you choose the right size and model for your home, then handle the full installation from start to finish. A properly sized cooling system runs more efficiently and keeps every room comfortable. Ask about current scheduling availability for your new AC installation.

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Furnace Repair — HVAC in Katy
03

Furnace Repair

When your furnace stops working or starts acting up, it shows—cold spots, unusual smells, odd noises, or a system that just won't ignite. Stellar Harbor HVAC Services can help identify what's going wrong and make the necessary repairs to restore reliable heat. Don't let a small furnace problem turn into a bigger one. Ask about scheduling.

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Furnace Installation — HVAC in Katy
04

Furnace Installation

Installing a new furnace is a big decision, and the details matter—proper sizing, correct venting, and careful setup all affect how well your home heats. Our team handles the complete installation process and walks you through operating your new system. If your old furnace is beyond repair, a replacement can be a smart long-term investment for Katy homeowners.

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Heat Pump Service — HVAC in Katy
05

Heat Pump Service

Heat pumps handle both heating and cooling, which makes routine service especially important. Stellar Harbor HVAC Services inspects, tunes, and repairs heat pump systems so they keep performing efficiently year-round. If your heat pump is struggling to maintain temperature or running constantly, we can help identify the issue before it worsens. Ask about current scheduling availability.

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Thermostat Installation — HVAC in Katy
06

Thermostat Installation

The right thermostat gives you real control over your home's heating and cooling. We install and configure a range of thermostats—including programmable and smart models—and make sure everything communicates correctly with your HVAC system. A properly set up thermostat can make a noticeable difference in both comfort and monthly energy use.

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Ductwork Services — HVAC in Katy
07

Ductwork Services

Leaky or poorly connected ducts can quietly undermine your entire HVAC system—pushing conditioned air into attics or walls instead of your living spaces. We inspect ductwork, locate problem areas, and make repairs that help your heating and cooling work the way it should. If rooms in your home never seem to reach the right temperature, the ducts may be worth a look.

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Seasonal Maintenance — HVAC in Katy
08

Seasonal Maintenance

Regular hvac maintenance keeps your system running efficiently and can help identify small issues before they turn into costly repairs. Stellar Harbor HVAC Services offers seasonal tune-ups covering both heating and cooling equipment—cleaning, inspecting, and adjusting components so you're ready before the next Katy summer or cold snap hits. Ask about current scheduling availability for your next maintenance visit.

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HVAC work in Katy
HVAC work in Katy
Your neighbors in service.Katy, TX & beyond
ABOUT US

Local hvac help you can count on

Katy summers don't mess around, and neither does a failing air conditioner at 4 p.m. on a Friday. Stellar Harbor HVAC Services was built around one idea: homeowners deserve clear answers and dependable work, not a confusing upsell. The team handles everything from ac repair and furnace repair to full heating and cooling system replacements, working on a wide range of equipment including heat pumps and ductless systems. Every visit starts with a thorough look at what's actually going on before any recommendation is made. Whether your system is struggling to keep up or has stopped working altogether, the goal is to get your home back to a comfortable temperature as efficiently as possible. Ask about current scheduling availability and get the process started today.

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WHY HOMEOWNERS CHOOSE US

Service that puts your home first

More than a quick fix — a thoughtful approach to your hvac and everyday comfort.

Indoor Comfort Priority

Every service call is focused on restoring a comfortable living environment as efficiently as possible, with solutions matched to your specific system and home layout.

Refrigerant Issue Checks

Low refrigerant can quietly reduce cooling performance and strain your compressor over time. A thorough inspection can help identify leaks or charge problems before they escalate.

Mini-Split Support

Ductless mini-split systems have their own quirks, and the team is familiar with diagnosing and servicing them so your zone-controlled comfort stays consistent.

Air Handler Checks

The air handler does a lot of quiet work moving conditioned air through your home, and a careful inspection can help catch issues like restricted airflow or worn components.

HOW IT WORKS

A simpler way to get it done

01

Tell us what's happening

Call or send a request with your hvac issue, your address, and the best way to reach you.

02

Find a time that works

Confirm current availability, talk through the details, and set up your appointment.

03

Back to your day

Your local pro assesses the issue, explains the estimate, and completes the approved work.

WHERE WE WORK

Serving Katy & the surrounding area

Stellar Harbor HVAC Services runs calls throughout the greater Katy area and into surrounding communities across west Houston. Neighborhoods close to the Energy Corridor, Cinco Ranch, Cross Creek Ranch, and similar suburbs are all areas the team regularly covers. If you're a bit further out and wondering whether a technician can reach you, just get in touch. Contact Stellar Harbor HVAC Services today to confirm availability for your address and get your heating and cooling system the attention it needs.

  • Sugar Land
  • Missouri City
  • Richmond
  • Rosenberg
  • Fulshear
  • Cypress
  • Brookshire
  • Cinco Ranch
  • Stafford
  • Pearland
  • Spring
  • League City
  • Friendswood
  • Energy Corridor

Don't see your neighborhood? Call to check availability

COMMON QUESTIONS

A few helpful answers

Here's what homeowners often ask before booking hvac service.

Real questions. A real conversation. (346) 527-0189
What is a heat pump?

A heat pump moves heat between indoor and outdoor environments to provide heating and cooling.

What does an HVAC thermostat control?

The thermostat monitors indoor conditions and signals heating or cooling equipment based on selected settings.

Why is my AC running but not blowing cold air?

Restricted airflow, dirty coils, system faults, or refrigeration problems can cause an air conditioner to run without cooling properly.

Why is my thermostat blank?

Potential causes include depleted batteries, power loss, wiring issues, a tripped breaker, or an HVAC safety switch.

What does HVAC mean?

HVAC stands for heating, ventilation, and air conditioning.

Why is my outdoor AC unit not running?

Power problems, controls, capacitors, motors, safety devices, or other system faults may be responsible.

What is indoor air quality?

Indoor air quality refers to airborne conditions inside a building, including particles, humidity, pollutants, and ventilation.

Can HVAC airflow be improved?

Yes. Filters, ductwork, registers, blower components, and system balance can all influence airflow.

Do you repair furnaces?

HVAC professionals commonly diagnose furnaces with heating, airflow, ignition, cycling, thermostat, and electrical problems.

GET IN TOUCH

Let's take care of it

Tell us what's going on and we'll help you find the next step. Call us or send a request below.

(346) 527-0189

Serving Katy, TX5803 Hwy Blvd, Katy, TX 77494, Katy, TX 77494

Availability24 hours a day, 7 days a week

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