Hong Kong's Water Treatment Specialists
Tell us your building — we'll tell you what it needs. Cooling towers, water tanks, boilers and pools, treated and tested since 1982.
What kind of building?
Step 1 of 3Clients as of 2026 — from single buildings to property managers looking after many. Hospitals, hotels, malls, factories, estates and pools.
Years treating Hong Kong's water. Founded 1982, still independent, still local.
Hong Kong hospitals on Gotech real-time monitoring (2026) — pH, ORP and chlorine tracked around the clock and dosed automatically. Hospital water treatment →
The regulator's department hires us.
Gotech has delivered water-treatment works for the EMSD's E&M Services Department at Hong Kong public hospitals — and the EMSD is the department that regulates cooling tower water quality. Gotech is also on the EMSD's approved vendor list. More about us →
- 1982Established in Hong Kong
- 11Hospitals on live monitoring (2026)
- 20+Specialists, technicians, engineers
Pool & industrial chemicals →
- 200 G · 1 KG / 25 KG
- LIQUID CHLORINE
- SHOCK
- SODA ASH · DRY ACID
- CONCENTRATE
- 26 PRODUCTS
Everything water, one company.
12 servicesCooling tower treatment
Scale, corrosion and Legionella control that keeps towers efficient and compliant.
02Cleaning & disinfection
Cleaning, desludging and disinfection to the EMSD Code of Practice.
03Independent audits
A second, independent opinion on compliance and water quality — including the annual audit the EMSD FWCT Scheme requires.
04Potable water disinfection
Chlorination of new or repaired drinking water pipework before it goes into service — dosed, held, flushed and tested.
05Chemical flushing
Pre-commission cleaning that clears scale, debris and biofilm — including shop fit-outs tying into a mall's chiller plant.
06Boiler water treatment
Steam and hot water programmes that prevent scale and downtime.
07Real-time monitoring
Live pH, ORP and chlorine online, with automatic dosing and alarms.
08Laboratory testing
Drinking water, pool water and Legionella analysis with formal reports.
09Legionella control
Risk assessment, sampling and treatment that keeps counts in the “undetected” range.
10Pool chemicals
Chlorine tablets and sodium hypochlorite, supplied locally.
11Acid cleaning
Hardness scale dissolved off the fill in place — a separate job from the routine clean.
12Fresh water tank cleaning
Tanks drained, cleaned, disinfected and lab-tested before the water goes back into use.
Built for your kind of building.
Who we serveGotech Chemical Ltd (高達化工有限公司) is a Hong Kong water treatment company, incorporated in 1982 and based in Kwai Chung, with a team of 20+ specialists, certified technicians and engineers serving 500+ clients as of 2026. Every programme is delivered to the EMSD Code of Practice for fresh water cooling towers, with a dated report after every visit.
We treat the water systems of hotels (cooling towers, pools and hot water plants scheduled around occupancy), hospitals and clinics (eleven hospitals run our real-time monitoring), shopping malls and Grade A office towers (statutory cooling tower programmes with tender-ready paperwork), factories (where water problems stop production), and housing estates and clubhouse pools (committee-ready quotations, pool chemicals delivered, plain-language reports). Government and institutional facilities are served under formal procurement — see who we serve.