Plumbing, Sanitary Materials, and Roofing Systems for Lombok Projects
Plumbing, Sanitary Materials, and Roofing Systems for Lombok Projects (2025 Price Reference)
On Lombok, reliable plumbing and roofing depend on correct specification, verified suppliers, and disciplined installation. The following guide summarizes representative materials and indicative prices from our internal lists. Figures are provided for planning; availability and logistics vary across the island.
1) Water Supply and Pressure Lines
PVC Pressure Pipes (Type AW – common for main supply):
- Ø 4": Rp 389,000 per meter
- Ø 3": Rp 234,000 per meter
- Ø 2": Rp 115,000 per meter
- Ø 1 1/2": Rp 90,000 per meter
- Ø 1": Rp 53,000 per meter
- Ø 3/4": Rp 38,500 per meter
- Ø 1/2": Rp 28,500 per meter
PVC Pipes (Type D – non‑pressure or lower pressure use):
- Ø 8": Rp 755,000 per meter
- Ø 4": Rp 200,000 per meter
- Ø 3": Rp 127,000 per meter
- Ø 2 1/2": Rp 97,000 per meter
Galvanized Steel (GI) for exposed or high‑temperature lines:
- GI Pipe 1/2" (1.8 m): Rp 112,000 per meter
- GI Pipe 2" (1.8 m): Rp 336,000 per meter
- GI Pipe 3" (1.8 m): Rp 495,000 per meter
Practical notes:
- Select pipe class by pressure and temperature; AW for pressurized mains, D for gravity/drain lines.
- Record heat‑fusion or solvent‑cement methods for inspection.
- Use unions and isolation valves at equipment to simplify maintenance.
2) Fittings, Valves, and Accessories
PVC Elbows (AW class):
- Elbow 3": Rp 15,000 per pcs
- Elbow 1/2": Rp 5,000 per pcs
PVC Tees (typical sizes):
- Tee 4" × 3": Rp 422,729 per pcs
- Tee 3" × 2": Rp 244,050 per pcs
Tee 2" × 2": Rp 174,36 per pcs (value as listed)*
Caps and Sockets:
- Dop PVC 4": Rp 43,581 per pcs
- Valve Socket PVC 4": Rp 70,817 per pcs
- Valve Socket PVC 2": Rp 27,239 per pcs
Isolation and Control:
- Gate Valve (flanged) 4": Rp 1,852,160 per pcs
- Water Meter (Water Mour) 2": Rp 89,339 per pcs
Floor Drain and Traps:
- Floor Drain ex. YUTA: Rp 23,267 per pcs
Practical notes:
- Confirm pressure rating and joint type (RRJ/SCJ).
- Keep an as‑built register of valve locations and meter serial numbers.
- For hospitality buildings, specify stainless or corrosion‑resistant grates in wet areas.
3) Fixtures for Sanitary Areas
Toilets and Basins (examples):
- Sitting Toilet: Rp 932,392 per pcs
- One‑piece Toilet ex. TOTO (CW 421J): Rp 3,540,656 per pcs
- Wall‑hung Lavatory (L529V1 WF): Rp 463,313 per pcs
- Self‑rimming Lavatory (L 568 V3): Rp 438,529 per pcs
- Washbasin + Accessories (Set, ex. TOTO): Rp 2,471,719 per set
Faucets and Mixers (examples):
- ONDA A 801 T 3/4": Rp 103,784 per pcs
- YUTA Bibcock Polish: Rp 50,479 per pcs
- TOTO Basin Mixer TX109LH: Rp 591,281 per pcs
Water Storage:
- Water Tank 1,200 L + accessories (Penguin TB120): Rp 2,438,924 per pcs
- Water Tank 1,600 L + accessories (Penguin TB160): Rp 3,321,088 per pcs
Practical notes:
- For coastal sites, prioritize fixtures with salt‑resistant finishes.
- Verify WCs and basins include compatible traps and mounting hardware.
- Record product codes in the material log to standardize future replacements.
4) Drainage and Subsurface Water Handling
PVC RRJ (rubber ring joint) – typical mains:
- Ø 4" (110 mm): Rp 150,965 per meter
- Ø 6" (160 mm): Rp 313,153 per meter
Culverts and soakaway components:
- Buis Sigaran Ø 30 cm × 1 m: Rp 173,386 per pcs
- Buis Beton (dia 80 cm): Rp 100,509 per pcs
Gutter interfaces (to tie roof water into drains):
- Square PVC Gutter: Rp 55,000 per meter
- Talang PVC Kotak: Rp 71,702 per meter
Practical notes:
- Maintain minimum slopes and debris traps to reduce blockages.
- Protect joints from settlement with compacted bedding and haunching.
- Coordinate roof outlets with downpipe sizing to match local rainfall.
5) Roofing Systems: Sheets, Profiles, and Ridges
Metal and composite roofing (examples):
- Spandek Plain 0.35 × 1 m: Rp 58,665 per meter
- Spandek Plain 0.25 × 1 m: Rp 39,110 per meter
- Multiroof (Pasir finish): Rp 48,001 per m²
- Multitup 0.35: Rp 104,292 per sheet
Ridge and accessory parts:
- Bubungan “Ujung”: Rp 57,361 per pcs
- Bubungan “Tepi”: Rp 14,992 per pcs
- Bubungan “Atas”: Rp 16,296 per pcs
- Bubungan Spandek (3 m): Rp 90,000 per sheet
Fasteners and roof battens:
- Roof Batten (Reng 0.40 BMT/0.45 TCT): Rp 45,629 per pcs
- Spandek Bolt (box @300 pcs): Rp 222,395 per box
SDS Screws (noted packaging references): Rp 229–652 per pcs (as listed)*
Practical notes:
- Select profile thickness by wind uplift and traffic on the roof.
- Match ridge and flashing profiles to the sheet to avoid capillary leaks.
- Conduct hose tests at valleys and penetrations before handover.
6) Execution, Documentation, and Compliance
- Specifications in contracts: Define pipe classes (AW/D), joint types (RRJ/SCJ), valve materials, roof thickness, and coating class.
- Supplier verification: Request SNI or equivalent certificates, delivery notes with batch IDs, and maintain a materials register.
- On‑site tests: Pressure tests for water lines, leak tests for roof gutters and ridges, and visual checks for solvent‑cement bonds.
- Permit alignment: Keep records ready for OSS submissions, PBG approvals, and SLF post‑completion. Inspectors focus on installed outcomes consistent with approved drawings and specs.
Pricing Disclaimer (2025)
All prices listed are indicative as of 2025 and based on internal procurement references. Actual costs in Lombok vary by location, supplier, stock availability, and logistics (including shipments from Java/Bali). In areas with difficult access or urgent schedules, prices may be higher than shown. Always revalidate current pricing, units, and specifications with suppliers before tenders or purchase orders.
Summary
For Lombok projects, plumbing and sanitary systems must be scoped by pressure class, joint integrity, and fixture quality; roofing systems must be selected by thickness, profile compatibility, and corrosion resistance. The indicative prices here provide a working baseline for investors. Final selections should be backed by supplier documentation, site testing, and records aligned with permits and inspections.
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