Get 15% off this month when you buy a new system!15% off a new system this month Claim it

Family-owned HVAC · Dallas–Fort Worth

Heating & Furnace Repair in Dallas

Furnace and heat pump repair, tune-ups and installation to keep your home warm when North Texas cold snaps hit.

★★★★★5.0 from 42 Google reviews
Constant Heating & Air – Heating & Furnace Repair
Free estimates24/7 emergency service

What we do

Heating problems always seem to show up on the coldest night of the year. We repair gas and electric furnaces and heat pumps, find the cause instead of guessing, and tell you the price before we fix anything.

Furnace repairGas and electric furnaces that won’t heat or won’t start.
Heat pump repairHeat pumps that blow cool air or run nonstop.
Ignition & flame sensorsThe most common reason a furnace keeps shutting off.
ThermostatsDiagnosis, replacement and programmable upgrades.
Heating tune-upsA fall check before the first cold snap.
New furnaces & heat pumpsHonest advice when repair no longer makes sense.

From our recent jobs

ERV installation – Constant Heating & Air
ERV installation
AC repair on a hot day – Constant Heating & Air
AC repair on a hot day
New construction project – Constant Heating & Air
New construction project

Signs you need a technician

  • Furnace runs but the house stays cold
  • Furnace turns on and off over and over
  • Burning smell that doesn’t fade after first use
  • Banging, squealing or rattling noises
  • Some rooms much colder than others
  • Heating bills higher than last winter

Safety first: Smell gas? Leave the house right away and call your gas company or 911 first — then call us.

How it works

  1. Call or request an estimateTell us what’s going on — by phone or with the form below.
  2. Diagnosis & a clear priceWe find the real problem and tell you the price before any work starts.
  3. Done right the first timeWe fix it, clean up, and stay in constant communication until the job is finished.

What customers say about our service

★★★★★ 5.0 from 42 Google reviews · More reviews

★★★★★
Great customer service. On time, above and beyond what I expected. Will continue to use this company for our heating and cooling needs.
LVLiliana ValdezGoogle review
★★★★★
Francisco came out and he was on time and honest. He showed me the problem and gave me pricing before making repairs. As a single woman it’s hard to find people to trust.
CKChris KnableGoogle review
★★★★★
AC technician provided excellent service. Explain the process/parts needed for repair.
SDSekou DavisGoogle review

Heating questions

Areas we serve

Furnace or heat pump acting up in Plano, Garland or Dallas? We come to you. We are based in Plano and cover all of Dallas–Fort Worth, including:

  • Plano
  • Dallas
  • Richardson
  • Garland
  • Carrollton
  • Addison
  • Farmers Branch
  • Coppell
  • Irving
  • Las Colinas
  • Rowlett
  • Sachse
  • Mesquite
  • University Park
  • Highland Park
My furnace is running but the house is still cold. What could be wrong?

Common causes are a dirty filter, thermostat settings, an ignition or flame sensor problem, or leaking ductwork. We will diagnose it and explain the fix and the price before any repair.

Do you offer emergency HVAC service?

Yes. We offer emergency repair service 24/7, including nights and weekends. If your AC or heat stops working, call 214-382-8601.

How often should my HVAC system be serviced?

Twice a year is best: the AC in spring before the Texas heat, and the heating in fall before the first cold snap. Regular service prevents breakdowns and keeps energy bills down.

Do you service all HVAC brands?

Yes. We service all major brands of air conditioners, furnaces and heat pumps.

Get a free estimate

Tell us what you need and we’ll get back to you fast. Prefer to talk? Call 214-382-8601 — emergency repairs 24/7.

  • Free estimates on all HVAC services
  • Clear price before any work starts
  • Family-owned, serving all of DFW

Get a Free Estimate

Free estimates on all HVAC services — we’ll get back to you fast.

Call Now Free Estimate