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GoodmanSeasonal 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 Brandt HVAC Co Dallas Guarantee
Every repair we make in Dallas comes with a written guarantee before we pick up a tool. That means you know exactly what we fixed, what the workmanship guarantee covers, and for how long, before you pay a dime. If a repair fails within the guarantee period, we return for free under our 365-Day Done Right Promise. No argument, no additional charge, no fine print that suddenly changes. Devin Marlowe started this company in 2003 with one rule: if we can’t put it in writing, we don’t do the work. That rule hasn’t changed.
What’s Covered
- Workmanship on every repair. If a part we installed fails because of how we installed it, the return visit and the labor to make it right are on us.
- Written price before any work starts. We hand you a line-item quote, you approve it in writing, and only then does a wrench touch your equipment. No surprises at the end of the job.
- Parts handled through proper channels. We source OEM and direct-replacement parts from known manufacturers, and we tell you what we’re installing, the part number, and what it costs.
- Cleanup as part of the job. We leave your mechanical closet, attic, or outdoor unit area as clean as we found it. Scrap parts go with us, not in your trash.
- On-time arrival with a face you recognize. Every Brandt technician is background-checked, uniformed, and introduced to you by name and photo before the visit. They show a photo ID badge at the door.
- Honest diagnosis with real options. We tell you what failed, what it costs to fix, and whether repair or replacement makes more sense for your specific unit in your specific home. The decision is always yours.
- 365-Day Done Right Promise. If a repair we completed doesn’t hold up within 365 days, we come back and make it right at no charge. That’s the promise Devin put his name on.
Styles & brands we work with







Our Satisfaction Promise
If you’re not satisfied with work we’ve done in your Dallas home, here’s what happens. You call (325) 312-3269, tell us what’s wrong, and we schedule a return visit at no charge. We inspect the work, we listen to your concern, and we fix whatever didn’t meet the standard. If we made an error, we own it plainly and we correct it. That’s how the 365-Day Done Right Promise works in practice: a free second visit if the repair fails, with no debate about whose fault it might be. Devin has always believed that a company’s reputation is built on what happens when something goes wrong, not when everything goes right. The make-it-right process isn’t a negotiating tactic here; it’s the operating manual for every tech on the team.
See the difference
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After
Before
After
Before
AfterLicensed & Insured Backing
A written guarantee is only as strong as the company standing behind it. Brandt HVAC Co Dallas is licensed and insured, which means you’re protected by more than a promise on a receipt. Licensing requires demonstrating real technical knowledge and passing inspections; insurance protects your property and our crew if anything unexpected happens. Our Threshold Verified standard adds another layer: every technician is background-checked and identity-verified before they ever step into your home. If anyone arrives who you were not told to expect, that visit is on us and we make it right. That’s the accountability a guarantee should have, and it’s the standard we’ve held since 2003.
What the Guarantee Does Not Cover
We’d rather be plain about this than let you find out later. Our workmanship guarantee covers the quality of our labor on every repair we perform. It does not cover damage from power surges, flooding, animal intrusion, neglect, or someone else working on the same system after we leave. Manufacturer part warranties are separate from our labor guarantee, and we’ll tell you exactly what coverage your specific part carries, from the manufacturer, in writing. If you have questions about what any guarantee covers, call (325) 312-3269 and ask for Devin or the service manager on duty. You’ll get a straight answer from a live person, any hour of the day or night.
Common Questions About Our Guarantee
Does the written guarantee have fine print?
No. The guarantee is a plain-language document we hand you with every repair. It states what we fixed, what the workmanship guarantee covers, and for how long. If you have a question, the tech who did the work can answer it before you sign anything.
What if the same part fails again after a repair?
If a part we installed fails within the guarantee period, we return and replace it at no charge, including labor. The 365-Day Done Right Promise covers the workmanship for a full year from the date of the repair. Call (325) 312-3269 and we’ll schedule the return visit.
Do you guarantee AC maintenance work the same way?
Maintenance visits include a written report of what we inspected, what we found, and what we recommend. The tune-up itself is backed by our satisfaction promise: if something we adjusted or cleaned fails shortly after the visit, we come back and address it at no charge.
Is the guarantee different for furnace repair versus AC repair?
No. The same 365-Day Done Right Promise applies to every repair we perform, whether it’s on your furnace, your air conditioner, or any other residential HVAC component. One standard, applied the same way every time.
Who do I call if I have a question about a past repair?
Call (325) 312-3269 and a live person answers, 24 hours a day, 7 days a week, including holidays. No voicemail, no callback queue, no automated phone tree. Ask for Devin if you want to speak with the owner directly about any service question.
Written by Devin Marlowe, Owner at Brandt HVAC Co Dallas, serving Dallas since 2003.