38 Years Gulf Coast
Vessels & Offshore Platforms
Confined Space Expertise
Maritime Compliance Documentation
Marine HVAC cleaning built for salt, moisture, and confined spaces.
The Gulf of Mexico coastline is one of the most corrosive operating environments on earth. Salt spray deposits mineral salts on coil and duct surfaces. Constant humidity breeds microbial growth faster than any inland environment. Confined bilge spaces and tight machinery rooms create access challenges that standard commercial crews are not equipped for. The result: marine HVAC systems that fail early, circulate contaminated air, and create health and safety risks for every person aboard. AH-CHOO! has been operating on the Gulf Coast for 38 years. We understand what salt and moisture do to HVAC systems — and we clean them to a standard that holds in these conditions.
Salt deposits require different agitation and removal methods than standard contamination. We use marine-specific protocols that prevent redistribution of mineral deposits through the system.
Bilge spaces, machinery rooms, and below-deck access areas are OSHA confined spaces. We follow proper confined space entry procedures — ventilation management, monitoring equipment, certified entry protocols.
Marine humidity creates ideal conditions for mold and bacterial growth inside ductwork. Proper extraction paired with anti-microbial treatment addresses contamination that standard cleaning misses entirely.
Post-service documentation for vessel compliance records, offshore operator requirements, and government-adjacent marine operations — NADCA-certified and ready for inspection.



Every marine environment has a different challenge.
We operate in all of them.
Offshore supply vessels, crew boats, tugboats, and commercial fishing vessels operating out of Gulf Coast ports. HVAC systems in continuous salt-air operation require marine-grade cleaning protocols.
Living quarters, control rooms, and industrial spaces on fixed and floating Gulf platforms. We coordinate with platform operations for scheduled maintenance windows and confined space entry compliance.
Shore-based facility HVAC serving offices, repair shops, and marine retail in high-salinity coastal environments. Salt-spray contamination accelerates standard duct deterioration in these locations.
Refineries, processing plants, and port facilities where salt-laden Gulf air accelerates HVAC contamination beyond what inland industrial environments produce. Dual contamination profile: industrial particulate plus marine corrosion.
HVAC maintenance for commercial charter vessels and large private yachts requiring professional standards for crew and passenger air quality. Documentation for vessel certification and insurance records.
Coast Guard facilities, military support installations, and defense-adjacent marine operations. NADCA-compliant cleaning with full documentation for government compliance and facility maintenance records.
How a proper marine job actually runs.
We evaluate system layout, confined space access requirements, contamination profile, and operational constraints before any work begins. Marine jobs require site-specific planning.
Below-deck and bilge space entry follows OSHA confined space protocols. Ventilation management, atmospheric monitoring, and certified entry procedures before any technician enters.
Salt-environment protocols, full NADCA-compliant extraction, and anti-microbial treatment for marine microbial contamination. Every zone, every component.
Post-service documentation ready for vessel compliance files, operator requirements, and government inspections — NADCA-certified and delivered promptly after service.
What marine contamination looks like — before and after.

Before

After

Before

After
38 years operating in the
Gulf’s hardest environments.
Most HVAC cleaning companies have never been inside a vessel’s bilge compartment. They don’t carry atmospheric monitors. They don’t follow OSHA confined space entry procedures. They don’t understand what salt-spray corrosion does to a coil surface — and they don’t have protocols for it.
We do. 38 years on the Gulf Coast means we have cleaned HVAC systems in every marine environment this region produces. The documentation, the confined space protocols, and the salt-environment cleaning methods are standard procedure for us — not a special request.
- OSHA confined space entry protocols on every vessel job
- Salt-environment cleaning protocols — not standard methods applied to marine
- NADCA certification on every technician
- Maritime compliance documentation delivered promptly after service
- 38 years Gulf Coast marine experience
Ready to talk about
your marine operation?
Every marine job starts with an assessment. Tell us about your vessel, platform, or coastal facility — we’ll evaluate the system, the access requirements, and the right cleaning approach before anything is scheduled.
Common Questions
Do you clean HVAC systems on vessels dockside or underway?
We work dockside or while vessels are in port. Offshore platform work is coordinated with platform operations during scheduled maintenance windows. Contact us to discuss logistics for your specific vessel or facility.
How do you handle confined space access on vessels?
Our technicians follow OSHA confined space entry procedures for all below-deck and bilge space work. This includes atmospheric monitoring, ventilation management, and certified entry protocols before any technician enters a confined space.
Does salt spray require different cleaning protocols?
Yes. Salt deposits on coil and duct surfaces require different agitation and removal methods than standard dust contamination. Standard methods redistribute mineral deposits rather than removing them. Our marine protocols are specifically designed for salt-spray environments.
Can you provide documentation for vessel compliance requirements?
Yes. Every marine job receives comprehensive post-service documentation including NADCA technician certification, scope verification, and completion records. This satisfies vessel compliance files, offshore operator requirements, and government inspection documentation needs.
What Gulf Coast ports and locations do you serve?
We serve marine clients throughout the Gulf South — Houston Ship Channel, Galveston, Port Arthur, Beaumont, Lake Charles, Morgan City, New Orleans, and Gulf Coast ports. Contact us to confirm availability for your location.
Related AH-CHOO resources: commercial air duct cleaning.
