Furnace & heating
AC repair
Heat pumps
Ductless mini splits
Carrier
TraneSeasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Get your free estimateThe Cold Harbour Heating and Air Dallas Guarantee
A guarantee only matters if it’s written down. That’s why every repair we make in Dallas comes with a one-page document, signed by the technician before they leave your driveway, that says exactly what was fixed and exactly how long we stand behind it. If that same repair fails at any point during the next 365 days, we return and correct the work at no charge. No phone call dodged, no fine print discovered later, no argument about what was or wasn’t included. That’s the whole point of the Kingswell Way we’ve operated under since 2003: say the price before the work, show up in the window given, leave the place cleaner than found, put the guarantee in writing, and come back if it fails. In Dallas, where an AC system can run 3,000 hours in a single year, a repair that holds up for 365 days has survived a full cycle of heat, humidity, and everything spring storms throw at a condenser coil.
What’s Covered
- Workmanship on every repair for 365 days. If the repair we made fails within one year, we come back to your Dallas home and correct it. The return visit, the labor, and the replacement part are all covered at no charge.
- Written guarantee on every job, not a verbal promise. Before the technician packs up, you get a one-page guarantee with the repair described in plain English, the date, and the 365-day term stated in writing.
- Written price handed over before a single tool comes out. The number on that sheet is the number you pay. It does not change at the door, mid-repair, or when the invoice is written.
- Uniformed, background-checked technicians on every visit. You know exactly who is walking through your door: their name, their uniform, and the company behind them.
- Arrival within the window promised. We tell you when we’re coming, and we show up then. If Dallas traffic gets in the way, you’ll get a call before the window closes, not after.
- Cleanup included on every job. The Kingswell Way says leave the place cleaner than found. Filters, packaging, screws, old parts, footprints: all gone before the truck pulls away.
- Nine major residential brands serviced. Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. The technician who arrives can work on the system already in your home, whatever it is.
Styles & brands we work with






Our Satisfaction Promise
If a repair fails within the 365-day guarantee period, the process is simple: you call us, we schedule the return visit, and we fix the original repair at no additional charge. This second visit is free, written into the guarantee from day one. There’s no deductible, no dispatch fee, no conditions about how the failure happened. If our work didn’t hold, that’s ours to correct. And if you’re ever unhappy with how a visit went, whether the repair itself, the technician’s conduct, or the state of your home after we left, call (430) 213-5796. A live person answers 24 hours a day, every day of the year. No voicemail tree, no hold music, no waiting until Monday morning to talk to a human being. Victor Mancini, the owner, keeps the phone line structured that way on purpose, because a guarantee is only useful if you can reach someone when it matters.
Licensed & Insured Backing
Paperwork can promise anything. What backs the paper is the fact that Cold Harbour Heating and Air Dallas operates as a licensed and insured HVAC contractor in the state of Texas. That means our work is performed under the oversight and accountability Texas requires of any legitimate heating and air conditioning company, and our insurance covers your home and our technicians while work is being performed. Both protections matter for a simple reason: if a promise fails, the structure to make things right is already in place. Since 2003, as an independently owned and operated member of the Kingswell network, we’ve been bound to the same written standards every Kingswell business follows, which is why our guarantee is written, not spoken, and why we correct our work at no charge when it doesn’t hold.
Written by Victor Mancini, Owner at Cold Harbour Heating and Air Dallas, serving Dallas since 2003.
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