Cooling Tower Cleaning for Bay Area Facilities That Can't Afford Downtime
Basin, fill and distribution cleaning with disinfection, executed by HAZWOPER-40 certified crews and documented to support your ASHRAE 188 water management program. Restore approach temperature, cut Legionella risk and extend tower life.
5°F
Drop in approach temperature after cleaning at a San Jose government building, restoring chiller efficiency.
Why Choose us
40 yrs
Continuous service across Northern California
Confined Space
and Fall Protection certified crew
ASHRAE 188
Work documented to meet or exceed
100+ towers
Cleaned per year
What is cooling tower cleaning?
Cooling tower cleaning is the physical removal of sediment, scale, biofilm and debris from a tower’s basin, fill media, distribution deck and drift eliminators, followed by disinfection. It restores heat-transfer efficiency, lowers approach temperature and removes the conditions where Legionella bacteria grow. Most facilities clean at least twice a year.
Certified. Compliant. Proven.
Chemical water treatment controls bacteria in the water. It can’t reach the sludge sitting in your basin or the biofilm inside your fill. That’s why mechanical cleaning is a required part of any serious water management plan, and why we treat it as engineering work, not a commodity rinse.
6 signs your cooling tower needs cleaning
If your team is seeing any of these, cleaning is overdue, and every week costs you in energy, water and risk.
01
Rising approach temperature
Leaving water runs warmer than design, so chillers work harder for the same load.
02
Visible basin sediment
Sludge and silt in the basin feed bacteria even when your chemistry is in range.
03
Scaled or clogged fill
Mineral scale and biofouling choke airflow and water distribution through the fill.
04
Algae and biofilm
Slime on the deck, louvers or basin walls is a direct Legionella risk indicator.
05
Positive Legionella sample
A lab result above your action threshold calls for cleaning and disinfection now.
06
Climbing energy & water bills
Fouled towers burn more kWh and lose more water to drift and blowdown.
What's included in a cooling tower cleaning
Basin & sump cleaning
Drain-down or online vacuum removal of sludge, silt and debris; strainers and sump screens cleared.
Fill cleaning & descaling
Chemical descaling and low-pressure flushing to clear scale and biofilm without damaging media.
Disinfection
Pre-clean disinfection to knock down Legionella and other microbial growth.
Distribution deck & nozzles
Hot-water basins and spray nozzles cleaned and checked for even water distribution.
Drift eliminators & louvers
Cleaned and inspected for gaps or damage that waste water and spread aerosols.
Condition & compliance report
Photo report and findings you can file directly into your ASHRAE 188 water management program.
End-to-end cooling tower and scrubber services
Deep Cleaning
Full basin cleanout, fill media washdown, drift eliminator cleaning, and nozzle clearing. We get into the guts of the tower and leave it running like new.
Fill Media Repack
Complete removal of degraded fill and installation of new high-efficiency media. We handle all tower brands and configurations.
Epoxy Restoration
Basin and structural epoxy coating to extend tower life by years. High-performance Belzona application with full surface prep and cure management.
Mechanical Repair
Motor, sheave, fan, gearbox, and drivetrain replacement. Component upgrades and retrofitting to keep aging towers performing.
Fume Scrubber Service
Acid fume scrubber maintenance, repacking, and restoration for semiconductor, pharmaceutical, and industrial facilities.
Preventive Maintenance
Scheduled inspections, water chemistry testing, and digital service reports with photos. Proactive care that prevents emergency shutdowns.
Our 4-step cleaning process
1
Site walk-down
We inspect the tower, review your water data and give you an honest assessment.
2
Plan around uptime
Scheduled cell-by-cell or off-hours so critical loads stay online.
3
Clean & disinfect
HAZWOPER-40 crews clean the full water path with documented safety procedures.
4
Verify & document
Before/after photos, findings and recommendations, ready for your compliance file.
Cooling tower cleaning for mission-critical facilities
Data centers
Cell-by-cell cleaning that protects PUE and cooling redundancy.
Hospitals & healthcare
Legionella control with records your infection-prevention team can use.
Manufacturing & industrial
Process cooling cleaned around production schedules to avoid unplanned stops.
Semiconductor
Stable process cooling for fabs where temperature drift costs yield.
BioPharma & life sciences
Documented procedures that fit regulated, audit-ready environments.
Commercial & government
Lower chiller energy use and fewer tenant comfort complaints.
When cleaning isn't enough
Sometimes a cleaning reveals corroded basins, collapsed fill or failing drift eliminators. Because we’re part of Tower & Scrubber Solutions, the same team can take you straight to the fix.
Cleaning & disinfection
Routine or emergency cleaning to restore performance and control Legionella.
Structural restoration & basin coating
Basin life extension with epoxy coatings, fill replacement and structural repair.
Cooling tower Fill replacement
Drift reduction and water-savings retrofits, plus industrial fume scrubber service.
Cooling tower cleaning FAQs
How often should a cooling tower be cleaned?
At least twice a year for most commercial and industrial towers, typically before startup and after peak season. Towers that run year-round, sit in dusty areas or serve healthcare facilities often need more frequent cleaning. Your ASHRAE 188 water management plan should set the exact schedule.
Can you clean a cooling tower without shutting it down?
Often, yes. Basins can be vacuumed online, and multi-cell towers can be cleaned one cell at a time so the facility stays cooled. A full drain-down gives the most thorough result, and we’ll recommend the right approach after the walk-down.
Does cleaning reduce Legionella risk?
Yes. Sediment and biofilm shelter Legionella from biocides. Removing them and disinfecting the system is one of the most effective risk controls, alongside ongoing water treatment and routine lab testing.
How long does a cooling tower cleaning take?
[Typical duration by tower size, e.g. a single-cell tower in X hours, multi-cell towers over Y days. Confirm with the field team.]
What's the difference between cleaning and water treatment?
Water treatment is chemical control of the water itself. Cleaning is physical removal of what has already settled or grown on surfaces. You need both; treatment alone can’t remove sludge or mature biofilm.
Which areas do you serve?
The San Francisco Bay Area and Northern California, including San Jose, Santa Clara, Sunnyvale, Fremont, Oakland, San Francisco and the Peninsula.
Request an Engineering Audit
Tell us about your system. We’ll handle the rest.
Phone Number
(408) 419-1545
Phone Number
(408) 419-1545
Phone Number
(408) 419-1545
Phone Number
(408) 419-1545