Owner Navigator Service: Your Independent New Construction Advocate
You have designed the perfect home. The hard truth in Middle Tennessee is that a beautiful home is only as good as the systems hidden behind its walls. The Owner Navigator service from DocAir is independent building-science coaching for homeowners building new in Nashville, Franklin, Brentwood, Murfreesboro, and across the surrounding counties.
Led by a Certified Industrial Hygienist holding a Tennessee CMC mechanical license, we work for you, not the builder, so your new home is healthy, efficient, and built to perform for life. Science before sales, from the first plan review to final verification.
Talk to a building scientist before your slab is poured.
The DocAir Difference, Science Before Sales
Science Before Sales
Recommendations based solely on objective findings. If the issue is minor and can be resolved independently, we will tell you that transparently.

Barry C. Westbrook, SCIH, PE
The founder is a Senior Certified Industrial Hygienist and Professional Engineer, a certified mold consultant credential no Nashville competitor can match. Learn more on our About page.
Founded 2002
Over 20 years of diagnosing and resolving mold remediation jobs across Nashville and Middle Tennessee, TN.
Building-Science Diagnostics
Infrared thermography, blower door testing, duct fan testing, moisture meters, and mold testing services, tools that find root causes, not just surface symptoms.
Written Warranty
All mold remediation work is backed by a warranty. Post-clearance testing included.
On-Time Guarantee
Project Managers arrive on time and notify you of any scope changes before they happen.
BBB Accredited
BBB Accredited member since 2002, Nashville's licensed mold remediation company with a track record you can verify.
Real Estate Specialist
First call for Nashville-area agents and buyers when inspection reports flag mold, moisture, or air quality concerns.


Five Systems We Engineer Into Your Build
HVAC Design & Optimization
A real Manual J load calc and Manual D duct design, sized for our climate so every room stays evenly comfortable.
Residential HVACMoisture Management
Mold and rot stopped before they start. Humidity control, air sealing, and water-intrusion detailing for humid Tennessee summers.
Crawl space encapsulationOptimal Indoor Air Quality
Clean, fresh air by design. Mechanical ventilation and filtration verified, keeping out fumes, pollutants, and allergens.
Air quality testingRadon-Resistant Construction
Davidson County is EPA Zone 1. Protection is built into the design, pressure-tested before the slab is poured, then verified.
Radon mitigationStormwater & Structural
The whole lot, not just the house. Grading and drainage from day one prevent foundation issues, wet crawl spaces, and erosion.
Storm water managementProven, Not Guessed
Results verified with infrared thermography, blower doors, duct fans, moisture meters, and smoke testing, never assumptions.
Request an evaluationNew Construction Advocacy: Common Questions

Talk one-on-one with a building scientist before your build moves past the foundation.
Call 615-373-2498What does the Owner Navigator service actually do?
- Works for the homeowner, an independent expert, never the builder.
- Reviews plans and oversees the building-science details during construction.
- Verifies performance with testing so problems are caught on paper, not after move-in.
- Goal: a home that is healthy, efficient, and durable.
Do new homes in Nashville need radon protection?
Yes. Davidson County and most surrounding counties are EPA Radon Zone 1, and local code addresses radon-resistant features in new construction.
- Far cheaper during construction than retrofitting later.
- We verify the system rather than assume a passive pipe is enough.
- More details from the Tennessee Radon Program, or see our radon mitigation service.
When should I bring in the Owner Navigator?
- As early as possible, ideally at plan review before construction starts.
- The biggest savings come early, with HVAC sizing, the radon system, the air barrier, and drainage right before the slab and framing are complete.
- Mid-build still helps, but earlier means more protection for less money.
Is the Owner Navigator really independent from my builder?
Yes. DocAir does not sell you the construction package, so our only job is to improve your home's performance.
- Science before sales, we advise you the way we would advise our own family.
- Data-driven, we revise our conclusions when the data tells us to.


