Common Causes of Toilet Drain Smell
Dry P-Trap
Water seal evaporates in rarely-used toilets, allowing sewage gas up
Water seal evaporates in rarely-used toilets, allowing sewage gas up
Blocked Vent Stack
Roof vent blocked prevents proper airflow, traps release gas
Roof vent blocked prevents proper airflow, traps release gas
Drain Clog
Slow drain causes bacteria buildup and hydrogen sulfide odor
Slow drain causes bacteria buildup and hydrogen sulfide odor
Broken Seal
Wax ring or toilet base seal broken allows gas escape
Wax ring or toilet base seal broken allows gas escape
Our Fix Process
1️⃣ Video inspection to identify source · 2️⃣ Clear drain with high-pressure jet / snake · 3️⃣ Refill P-trap water · 4️⃣ Check vent stack · 5️⃣ On-site retest · 14-day warranty
Areas We Cover
HK Island: Central, Wan Chai, Causeway Bay, Admiralty, Sheung Wan, Kennedy Town, Aberdeen · Kowloon: Tsim Sha Tsui, Mong Kok, Yau Ma Tei, Kowloon City, Kwun Tong, Wong Tai Sin · New Territories: Tsuen Wan, Shatin, Tuen Mun, Yuen Long, Tai Po, Fanling, Ma On Shan
Why DrainFix?
- ✅ Written quote confirmed on WhatsApp before we arrive — no hidden charges
- ✅ 30-60 minute typical fix time
- ✅ 14-day free retest if smell returns
- ✅ Licensed, insured, experienced technicians
- ✅ 7-day service (night surcharge HKD 200, 11pm-6am)