Family-owned HVAC · Dallas–Fort Worth
New AC & Heating System Installation in DFW
Replace an old, inefficient system with a modern one sized for your home — with honest advice and a free in-home estimate.
★★★★★5.0 from 42 Google reviews
What we do
A new system is one of the biggest investments in your home, so it has to be sized and installed right. We look at your home, your current equipment and your ductwork, then recommend what actually makes sense — not the most expensive option. Not sure yet? We will tell you honestly when an AC repair is still the better choice.
From our recent jobs
Signs you need a technician
- System is older than 12–15 years
- Repairs are getting more frequent
- Energy bills keep rising
- Uneven temperatures from room to room
- Older system still running on R-22 refrigerant
- Repair quote is a large share of a new system
How it works
- Call or request an estimateTell us what’s going on — by phone or with the form below.
- Diagnosis & a clear priceWe find the real problem and tell you the price before any work starts.
- Done right the first timeWe fix it, clean up, and stay in constant communication until the job is finished.
This month only — ask during your free estimate.
What customers say about their new system
★★★★★ 5.0 from 42 Google reviews · More reviews
Constant Air came to my house and installed a full brand new system they did a amazing job and also have great pricing… Really professional
Fransico did an outstanding job replacing my house units! He was not only punctual but also incredibly professional throughout the entire process. I truly appreciated his attention to detail and expertise.
Fransisco and Daniel did an amazing job installing my unit, both are really nice and informational. I’ll be using them for my future hvac needs again!
New System Installation questions
Areas we serve
Planning a new system in Plano, Richardson or Dallas? Start with a free in-home estimate. 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
Should I repair or replace my AC?
If your system is older than about 12–15 years, needs frequent repairs or your bills keep rising, replacing it is often the better investment. We give you honest advice and a free estimate — and this month you get 15% off a new system.
How long does an AC replacement take?
Most standard AC replacements are completed in one day. Larger jobs, such as a full system with new ductwork, can take longer — we will tell you the timeline up front with your estimate.
Do you offer free estimates?
Yes. Constant Heating & Air provides free estimates for all HVAC services. Call us or send the form on this page to schedule one.
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
