6 Best Water Filter Services in Bangkok
Bangkok tap water isn't safe to drink. These 6 water filter services install RO, UV, and whole-house filtration systems — with free consultations, maintenance plans, and filter delivery.
What Our Customers Say
Bangkok's tap water is technically treated, but old pipes and building plumbing mean it's not safe to drink straight from the tap. A good water filter system eliminates bacteria, heavy metals, and sediment — giving you clean drinking water without the cost and waste of bottled water. Here are six trusted providers.
1. Baankrongnam
Website: baankrongnam.com
Thailand's #1 water purifier service centre with over 158 branches nationwide. Free installation within 3 working days of purchase. Free water quality checks. Offers RO, UV, and UF purifier types plus filter changes and water heater/pump installation.
2. Kat-Tech Engineering
Website: kat-tech.co.th
Founded in 2008 by Swedish engineer Thomas Andersson. Official distributor of VIQUA and Atlas Filtri water filters. Installs whole-house and point-of-use systems with UV disinfection killing 99.99% of bacteria. Free water filter consultations. Excellent after-sales support.
3. Mazuma Thailand
Location: Bangsue, Bangkok
Website: mazuma.co.th
Leading water technology innovator in Thailand for over 30 years. Offers UF and RO water purifiers with 3–6 stage filtration systems. Direct service team covers all Thailand. Phone: 02-011-1999.
4. Aquasana Thailand
Website: aquasana-thailand.com
Authorised Thailand dealer for the US-based Aquasana brand (24+ years globally, 33 countries). Offers countertop, undersink, whole-house, reverse osmosis, and shower filters. Proactive service with filter change reminders and responsive customer support.
5. Nova Water Thailand
Website: novawaterthailand.com
First-mover in water purifier rental services, serving leading companies across Bangkok. Sells and rents South Korean-imported water purifiers and hot-cold dispensers. FDA-certified vacuum-sealed storage tanks. Regular maintenance by skilled technicians. Covers Bangkok and 14 surrounding provinces.
6. VIQUA Thailand
Website: viqua-thailand.com
Official distributor of VIQUA products — the world's largest supplier of residential UV water disinfection systems with 35+ years of experience. Best-selling whole-home system provides 70L/min flow with sediment, carbon, and UV filtration. Multi-point systems available for condos and apartments.
Clean Water, Clean Home
Water filters are essential for drinking water — but don't forget that moisture from leaking filter connections and condensation around water dispensers can attract cockroaches and ants. Any standing water or dampness in your kitchen creates a pest-friendly environment.
Keep your kitchen pest-free alongside your water filter installation with Khun Clean's natural cockroach treatment. Food-grade diatomaceous earth applied under sinks, behind water dispensers, and around plumbing connections eliminates pests without contaminating your clean water supply.
Book a kitchen pest inspection — it pairs perfectly with your water filter installation.
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Ready to Live Pest-Free?
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