Common causes in HK
Cooking oil poured down sink (HK kitchen #1 cause)
Food debris build-up below grease trap
Soap scum + grease compound at downpipe joints
Restaurant: full grease trap requiring pump-out
How we clear it
Method
Hot-water flush (70°C) → motorised drain auger → grease trap pump-out (commercial) → cold water rinse + test.
Other services
不成功不收費 + 7-day re-block guarantee. Most HK 通渠 shops promise "no fix, no charge" — we go further: even after we clear it, if the drain re-blocks within 7 days we come back free. Every quote is given in writing on WhatsApp before we dispatch. No "$700 quote → $18,000 invoice" surprises.
What "不成功不收費" means here: if our equipment can't clear the blockage on-site, you owe HKD 0 — not "callout fee", not "diagnostic charge", not "labour for trying". Zero.
For severe blockages requiring heavy-duty equipment: 高壓機通渠 (high-pressure machine): HKD 2,300-2,800 · 刨渠 (mechanical drain reaming): HKD 3,800+. Both quoted on-site after inspection; only used when standard auger can't clear.
Already been quoted by another company? WhatsApp us the price they gave you and what they said is wrong. We'll either (a) tell you it's fair and you should go ahead, or (b) quote ours in writing for the same job. Both answers are free — even if you go with them.
💬 Second-opinion WhatsApp →
Why customers pick DrainFix over the old shops
HK has 通渠 companies claiming 30–60 years experience. Heritage doesn't stop the bait-and-switch — most page-1 competitors hide their prices until they're at your door. Here's what we do differently:
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Written quote before dispatchWe text the price to your WhatsApp before the van rolls.
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Starting prices published, exact quote depends on complexity廁所 由 HKD 800 起（按複雜度） · 廚房 800 · 浴室 800 · 室外 800+. Same numbers wherever you check.
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不成功不收費 + 7-day coverNo fix → no charge. Re-block within 7 days → we come back free.
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全港 18 區 · same-dayHK Island · Kowloon · NT · Outlying. 30-min day, 45-60 min overnight.
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We refer when it's not our jobRoots-into-mains or 渠務署? We say so, no charge.
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Two-tier transparent pricingWe price on the spot. No HKD 200 just-to-look fee.
