4Square Heat and Air is based between McKinney and Princeton and serves homes across Collin County, from the fast-growing east side to Frisco and Plano.
Home base
- McKinney
- Princeton
- Lowry Crossing
- New Hope
East Collin County
- Farmersville
- Lavon
- Nevada
- Josephine
- Blue Ridge
- Wylie
North & central
- Melissa
- Anna
- Fairview
- Lucas
- Allen
- Prosper
South & west
- Frisco
- Plano
- Murphy
- Sachse
- Parker
- Celina
Local knowledge
From new builds to farmhouses.
Collin County is some of the fastest-growing country in Texas. In one week we might see a brand-new two-story in Frisco or Prosper with an upstairs that won’t keep up, an all-electric heat pump home in Princeton or Melissa, and an older ranch near Farmersville with a furnace that’s been running since the ’90s. Each needs a different conversation, and an honest one.
Not on the list?
Just ask.
If you’re close to Collin County, call (469) 556-0507 and we’ll tell you straight whether we can get to you.
(469) 556-0507