Lennox gas furnace with flue pipe installed in a home's utility closet

Heating Repair and Furnace Installation in Houston, TX

Gas furnace and heat pump repair and installs, ready before the next hard freeze.

Heating in Houston, TX

Heating built for Houston weather.

Houston does not need heat most of the year, which is exactly why the heating system gets ignored until the first cold front. Then the furnace that sat untouched since last winter has to start up on the coldest night of the year, and if it does not, the house gets cold fast. Hard freezes like the one in February 2021 showed how quickly that turns serious.

We repair and install gas furnaces and heat pumps for homes and businesses, in attics, closets and garages. Heating calls start with the safety side: ignition, flame sensor, burners, the flue and the safety controls on a gas furnace, or the defrost cycle and backup heat on a heat pump. Then we find what is actually stopping the heat.

When replacement is the right call, the new system is sized for the house, not just swapped for whatever fits the closet. The best time to check the heat is in the fall, before you need it.

  • Signs you need heating service

  • The furnace runs but blows cold air
  • A burning smell that does not go away after the first run
  • The system short cycles or will not ignite
  • Heat pump frozen over or stuck in defrost
  • Some rooms stay cold
  • Call (713) 870-6652

What is included

What we handle

Residential and commercial. Free estimates, and a 10-year part warranty on the parts we install.

  • 01Gas furnace diagnostics and repair
  • 02Heat pump repair and installation
  • 03Ignition, flame sensor and burner service
  • 04Furnace and air handler replacement
  • 05Fall heating safety checks
Lennox gas furnace with flue pipe installed in a home's utility closet
Gas furnace and flue installed in a tight attic space with copper refrigerant lines
Amana furnace and air handler installed in an attic

Four steps, no surprises

How a heating call works

The same process on a single mini split or a commercial rooftop.

  1. Thermal Solutions trailer with new equipment parked outside a home
    STEP 01

    Tell us what is happening

    Call or send the quote form with the problem, the address and the kind of system. Emergencies go straight to the phone.

  2. Technician testing an outdoor condenser with a meter
    STEP 02

    We measure before we touch it

    A technician tests the system on site. Temperatures, pressures, airflow and electrical, so the repair fixes the cause and not the symptom.

  3. Failed capacitor next to the new replacement part
    STEP 03

    You get the number first

    The estimate is free. You hear what we found and what it costs before any work starts.

  4. Finished ductless condenser install with a clean line set
    STEP 04

    We fix it and prove it

    The work gets done, the system gets tested again, and we do not leave until it is running right.

Newly installed air handler on an attic platform with insulated ductwork
Financing through Hearth

Pay for a new system monthly

Financing through Hearth lets you check your monthly payment options without affecting your credit score, so a failed system does not have to wait for a cash decision.

Heating FAQ

Heating questions, answered.

Why is my furnace blowing cold air?

Common causes are a dirty flame sensor, an ignition problem, a tripped safety limit from a dirty filter, or a thermostat set to fan on instead of auto. On a heat pump it may be in its defrost cycle.

Do I really need a heating tune-up in Houston?

Yes. The furnace sits unused for most of the year, so a fall check of the ignition, burners, flue and safety controls makes sure it starts safely the first cold night.

Is a burning smell normal when I first turn on the heat?

A light dusty smell for a few minutes the first time is normal. A smell that lingers, or any smell of gas, is not. For gas, leave the house and call the gas company first.

Do you install heat pumps?

Yes. We install and repair heat pumps as well as gas furnaces.

Other services in Houston

Serving Houston and surrounding towns, including Cypress, Tomball, The Woodlands, Creekside Park, Bridgeland and more.

Request a quote

Get a free heating quote.

Free estimates, honest numbers, and a 10-year part warranty on the parts we install. Send the form or call, and we will take it from there.

  • 24-hour emergency service
  • Free estimates
  • 10-year part warranty
  • (713) 870-6652

Request a free quote

Tell us what is going on. Emergencies, call us any time.

Free estimates. By sending this you agree Thermal Solutions AC and Heating may call, text or email you about your request.