Engineering Expertise That Goes Beyond the Blueprints
When you need engineering expertise in HVAC systems and mechanical and plumbing code compliance, Don Bailey, PE brings more than just textbook knowledge—he brings hands-on experience, court-tested judgment, and an engineer’s eye for detail.
Deep Knowledge in HVAC System Design & Failures
With over three decades of experience in HVAC systems, Don understands why systems fail, how they should be designed for efficiency, and what it takes to meet compliance standards. Whether it’s a chiller system miscalculation or improper duct sizing, he can pinpoint root causes with clarity.
Here’s the deal: In construction disputes or injury claims, clear analysis of HVAC functionality can make or break your case.
Common HVAC issues Don addresses:

- Improper airflow distribution
- Load miscalculations
- Duct leakage and inefficiency
- Equipment selection and placement errors
Plumbing & Mechanical Code Compliance That Stands Up in Court
Mechanical and plumbing code compliance isn’t just about passing inspections—it’s about ensuring safety, efficiency, and legal defensibility. Don Bailey is well-versed in ICC, IMC, UPC, and ASHRAE standards, interpreting them in ways that hold up under scrutiny.
Clients rely on Don to:
- Review plans for code violations
- Testify on compliance disputes
- Assist in design reviews to avoid permit delays
Real-World Applications for Construction & Commissioning
Commissioning isn’t just a checklist. It’s a strategic process that ensures your systems work as designed. Don brings construction & commissioning expertise to the table to verify that installed systems:
- Match the design intent
- Perform under real-world conditions
- Are documented, tested, and ready for turnover
Trusted Nationwide for Construction & Commissioning Solutions
What Makes Don Bailey, PE Unique
Don doesn’t just consult from behind a desk—he’s been in the field, solving complex challenges across industrial, commercial, and institutional buildings. From Florida hospitals to Texas data centers, his nationwide consulting practice has impacted high-stakes projects.
Key strengths:
- Licensed PE with nationwide reach
- Decades of HVAC and commissioning experience
- Deep code knowledge across multiple jurisdictions
Common Commissioning Problems He Solves
If your project has experienced commissioning delays, missing documentation, or post-occupancy complaints, you’re not alone. Don helps project owners and legal teams:
- Investigate commissioning oversights
- Identify misaligned system integration
- Address owner dissatisfaction with delivered systems
Case Study: When Expertise Prevented a Multi-Million Dollar Mistake
A Florida school district was facing costly litigation due to HVAC failures causing mold issues. Don Bailey stepped in, identified oversights in the original design specs, and helped the district negotiate a resolution before trial. His expertise saved millions in damages—and ensured safer classrooms for students.
Expert Witness Services Rooted in Technical Authority
Don Bailey is more than a professional engineer—he’s a trusted expert witness whose clarity and confidence earn credibility with judges and juries alike.
Don Bailey’s Credentials & Professional Background
- Licensed Professional Engineer (PE), Florida
- Over 30 years of HVAC and mechanical design experience
- Subject Matter Expert in mechanical system failures
- Familiar with ASHRAE, IMC, IPC, NFPA codes and more
Clear, Courtroom-Tested Testimony
Don’s ability to communicate complex topics in plain English is one of his hallmarks. Whether he’s testifying in a deposition or explaining failures on the stand, he connects the dots between technical detail and legal relevance.
He provides:
- Expert witness reports
- Depositions and live testimony
- Case strategy consultation
Types of Cases He Supports
Don supports a wide range of cases involving:
- HVAC system failures
- Construction delays or commissioning disputes
- Mechanical/plumbing code violations
- Premises liability related to environmental systems
- Contractor negligence
Mechanical & Plumbing Code Compliance You Can Count On
In the world of construction litigation and design review, few things are as vital as code compliance. Don Bailey helps clients prevent, mitigate, and resolve disputes over mechanical and plumbing standards.
Navigating Code Disputes with Confidence
Whether it’s a local building inspector flagging a discrepancy or an insurance company questioning a claim, Don brings technical clarity to the conversation.
He regularly provides:
- Compliance assessments
- Design reviews
- Rebuttal reports
Staying Ahead of Local, State & National Regulations
Codes change—and fast. Don stays up to date on:
- 2024 IMC and IPC updates
- ASHRAE 90.1 energy standards
- Florida Building Code nuances
His proactive approach helps design teams and owners avoid violations before they happen.
Avoiding Liability Through Early Design Review
Early input from a code expert like Don can prevent costly mistakes and reduce liability. He helps clients:
- Catch noncompliance before construction
- Evaluate equipment placement for serviceability
- Flag ventilation or drainage issues during design
Why Engineers, Lawyers, and Contractors All Trust Don Bailey
Don isn’t just technically sharp—he’s someone you want on your side when things get tough. His calm, methodical, and ethically grounded approach earns repeat clients and high praise.
Straightforward Communication
You won’t get jargon. You’ll get explanations that make sense to judges, juries, contractors, and building officials. That’s part of what makes Don so effective in legal settings.
Integrity That Translates Into Results
Don’s conclusions are data-driven and impartial. He calls it like he sees it, which builds trust and adds weight to his testimony.
One attorney client put it this way:
“Don’s thoroughness and objectivity made him a cornerstone of our case strategy.”
Nationwide Service, Local Insight
Though based in Dunnellon, Florida, Don serves clients across the U.S. He brings a strong understanding of regional and national code variances—critical in multi-jurisdictional cases.
Key Takeaways: Why Don Bailey, PE Is the Expert You Need
To recap:
- ✅ 30+ years of HVAC and commissioning experience
- ✅ Expert in mechanical & plumbing code compliance
- ✅ Trusted expert witness nationwide
- ✅ Licensed PE with proven courtroom testimony
- ✅ Practical, real-world insight for legal and design teams
Book Your Consultation with Don Bailey, PE Today
Don’t leave your case or project to chance. Whether you need forensic analysis, code consultation, or expert testimony, Don Bailey, PE delivers clarity, confidence, and results.
👉 Visit donbaileype.com or call today to schedule a consultation.