HK 大廈管理處 + property management firms typically receive 5-50 drain complaints per building per year, mostly from residents calling reception with "the plumber said he'd come 2 hours ago" frustration. Your team needs a vendor that just works.
DrainFix HK runs a preferred-vendor program for buildings + management firms with volume pricing, single-point dispatch, monthly job-summary reports, and Net 30 corporate AP terms.
What you get as preferred vendor
📞 Single dispatch numberBuilding manager has direct WhatsApp / phone — bypasses general queue. Priority routing for buildings on the program.
📊 Monthly job summaryEnd of each month: PDF report of all jobs at your building(s) — date, unit, issue, time, price, photos. Useful for OC meetings + AP reconciliation.
💰 5% volume discountBuildings on the program with 50+ units get 5% off first 20 jobs/year. 10% off after that. Applies to all residential pricing.
🧾 Net 30 corporate APSingle monthly invoice, not per-job. Ready for AP processing.
🛡️ Liability insurance HKD 5MPublic liability + workmen's compensation. Certificate available on request for OC compliance.
📋 Building-specific knowledgeWe learn your building's drain quirks (clay pipes? subdivided units? light-well issues?) and remember between jobs.
Pricing (preferred-vendor rates)
| Service | Standard | Preferred-vendor (50+ unit) |
|---|---|---|
| Toilet unblock (resident-paid) | HKD 800 | HKD 333 |
| Kitchen unblock (resident-paid) | HKD 800 | HKD 380 |
| Bathroom drain (resident-paid) | HKD 800 | HKD 333 |
| Outdoor / light-well (building-paid) | HKD 800+ | HKD 570+ |
| Building common drain mains | HKD 1,000-3,000 | HKD 950-2,850 |
| After-hours surcharge (11pm-6am) | +HKD 200 | +HKD 200 |
Volume discount tiers: 50-100 units = 5% / 100-300 units = 7% / 300+ units = 10%.
How residents are billed
- Resident-side issues (in-unit toilet/kitchen/bathroom block): resident pays the technician on the day. We send the resident the receipt directly. Your office gets a copy in the monthly summary for awareness only.
- Building-side issues (common drain mains, light-well, building outdoor drains): we invoice the building / management firm Net 30. Your AP processes monthly.
- Disputed / ambiguous: we photo + WhatsApp you for confirmation before doing the work. Building decides who pays.
What we don't do
- No water plumbing — pipe replacement, fittings, tap repair require licensed 水喉匠. We refer.
- No kickbacks — illegal in HK and damaging to reputation if discovered. We win on service quality.
- No mystery surcharges — pricing on this page is what you pay. After-hours pre-disclosed.
- No exclusivity demands — you can use other vendors freely. We earn the next call.
Why we focus on drain unblocking only:
HK 水喉舖 (full plumbers) carry licensing overhead that gets passed through. We focus exclusively on drain unblocking — no plumbing modifications. This is why our preferred-vendor pricing for buildings is HKD 333-3,000 vs HKD 500-5,000+ from a full-service vendor.
How to start a preferred-vendor relationship
- WhatsApp or call us with: building name + address + estimated unit count + current drain vendor (if any)
- 15-min discovery call (phone or in-person at your office) to scope the relationship
- We send a 1-page program proposal with pricing + insurance certificate
- Building manager / OC chair reviews + signs (no exclusivity, cancellable anytime)
- First job at preferred-vendor rate. Net 30 AP from invoice 1.
We currently serve 4 buildings under this program (Sham Shui Po walk-up, Tin Hau, Mong Kok, Wan Chai) — references available on request.
