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Siang Long Hardware Enterprise Logo
Siang Long 翔龙

Hardware Enterprise • Plumbing • Waterproofing

WELCOME TO SIANG LONG

Powering Your Property With
Trusted Engineering Services

High-pressure plumbing repairs, infrared non-destructive water leak mapping, certified PU chemical injection grouting, and wholesale hardware depot distribution.

CustomerCustomerCustomer
4.9 RATING POSITIVE REVIEWS( OUT OF 5 )

10k+ satisfied commercial & residential clients

Work process
WATCH WORK PROCESS

Diagnostic & Non-Hacking Tech

2 Min Video Overview
• GET IN TOUCH • GET IN TOUCH • GET IN TOUCH •

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Get rapid on-site diagnosis and transparent pricing within 15 minutes

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WHO WE ARE

Your Trusted Partner For Engineering & Hardware Solutions

Engineer on site
MORE ABOUT

Our Mission

To eliminate water damage permanently through precision acoustic mapping, high-pressure PU resin grouting, and genuine contractor-grade materials.

Our Vision

Setting the regional benchmark for non-destructive engineering restoration and rapid wholesale hardware availability.

With over 18 years in hydraulic piping and structural concrete repair, Siang Long Hardware Enterprise integrates on-ground field engineering with direct depot inventories—saving you time, hacking costs, and recurring leak headaches.

Alex Tan, founder and master plumber on site in Penang
Managing Director

Mr. Alex Tan

Founder & Master Plumber (Penang)

TRUSTED BY OVER 500+ PROPERTY DEVELOPERS & CONTRACTORS

MEGASTRUCTURE
AQUA-SEAL
HYDROPIPE
PRIMEFLOW
VORTEX BUILD
High-Pressure Plumbing Repair
Non-Hacking PU Injection Grouting
Rooftop Waterproofing Membrane
ISO Certified Hardware Wholesale
Acoustic & Thermal Leak Diagnostics
Emergency 24/7 Rapid Dispatch
High-Pressure Plumbing Repair
Non-Hacking PU Injection Grouting
Rooftop Waterproofing Membrane
ISO Certified Hardware Wholesale
Acoustic & Thermal Leak Diagnostics
Emergency 24/7 Rapid Dispatch
High-Pressure Plumbing Repair
Non-Hacking PU Injection Grouting
Rooftop Waterproofing Membrane
ISO Certified Hardware Wholesale
Acoustic & Thermal Leak Diagnostics
Emergency 24/7 Rapid Dispatch
OUR SERVICES

Powering Your Property With Professional Engineering Services

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Plumbing Services
Plumbing Division

High-Pressure Pipe Systems

Concealed pipe leak acoustic diagnostics, hot water PPR line fittings, high-pressure hydro-jetting, and backflow preventers.

  • Endoscopic Camera Drain Inspection
  • Commercial Booster Pump Systems
  • 24/7 Rapid Emergency Response
EXPLORE PLUMBING
Waterproofing Services
Waterproofing Division

Advanced Waterproofing Barrier

Roof torch-on elastomeric membranes, high-pressure Polyurethane (PU) grouting injection, and non-hacking bathroom waterproofing.

  • Non-Hacking Bathroom Clear Barrier
  • Deep Concrete Crack PU Grouting
  • 10-Year Water-Tight Certificate
EXPLORE WATERPROOFING
Hardware Supplier Depot
Hardware Supplier Depot

Hardware & Contractor Supplies

Wholesale distributor of high-pressure brass & SS316 valves, polyurethane resins, copper press fittings, and testing gear.

  • 3,500+ ISO-Certified Contractor SKUs
  • Same-Day Site Dispatch Available
  • Trade Credit Accounts for Builders
BROWSE HARDWARE DEPOT
Siang Long managing director and engineering team in Penang

翔龙五金行

Master Engineering & Hardware Depot

18+ Yrs Mastery
WHO WE ARE

Your Trusted Partner for
Plumbing & Waterproofing

Founded in 2008, Siang Long Hardware Enterprise (翔龙五金行) has developed into an integrated leader spanning master plumbing services, advanced non-hacking waterproofing, and wholesale hardware distribution.

Master License

Registered Plumbing Contractor (JBA Penang) #SP-P-88310 | Waterproofing Specialist #WP-4421 | CIDB G4 Certified

Non-Hacking Technology

Proprietary high-pressure PU grouting & nano crystalline sealants stop leaks without breaking tiles.

MORE ABOUT US+60 10-468 4916
HOW IT WORKS

Our Simple & Precision Work Process

From non-destructive leak diagnostics to final hydrostatic testing and long-term warranty.

01

1. Acoustic & Infrared Survey

We deploy thermal cameras and acoustic loggers to pinpoint subsurface pipe bursts or slab leaks with millimeter accuracy.

02

2. Targeted Engineering Repair

We execute non-hacking high-pressure PU grouting, torch-on waterproofing membranes, or certified PPR piping replacement.

03

3. Hydro-Testing & Warranty

Hydrostatic pressure testing is conducted to verify 100% sealing, followed by issuing an official 10-year warranty certificate.

REAL REPAIR RESULTS

See The Damage We Erase

A chronic ceiling leak sealed with non-hacking high-pressure PU grouting — no tiles broken, no displacement, 10-year water-tight warranty.

24h

Cure time

0

Tiles broken

10yr

Warranty

See more repair case studies →
Ceiling restored clean and dry after PU grouting repairCeiling with severe water leak stains before repairBeforeAfter
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HARDWARE SUPPLIER DEPOT

Certified Wholesale Hardware & Fittings

VIEW HARDWARE CATALOG
Valves & Flow ControlsIn Stock (Wholesale & Retail)

Heavy-Duty Full Port Brass Ball Valve (1" to 3")

Rating: PN25 / 600 WOG

Material: Forged Brass DZR with PTFE Seals

  • Blow-out proof stem design
  • Corrosion resistant chrome-plated brass ball
  • Tested to 100% pneumatic sealing
RM 39 - RM 138 / unitInquire Bulk
Valves & Flow ControlsIn Stock (Bulk Pallet Discounts)

Industrial Stainless Steel 316 2-Piece Ball Valve

Rating: Class 150 / 1000 WOG

Material: CF8M / SS316 Marine Grade

  • Lockable handle mechanism
  • Full industrial chemical compatibility
  • Extreme temperature tolerance -20°C to 180°C
RM 72 - RM 320 / unitInquire Bulk
Waterproofing ChemicalsIn Stock (Depot Collection Ready)

Hydrophobic Polyurethane Grout Injection Resin (20L)

Rating: ASTM D638 / 1500 PSI Curing

Material: Hydrophobic MDI prepolymer

  • Expands 2500% in presence of water
  • Forms closed-cell rubberized seal
  • Non-toxic once cured, potable water safe
RM 358 / 20L DrumInquire Bulk
BLOG & ARTICLES

Explore The Latest Technical Tips & Guides

VIEW ALL ARTICLES
5 Tell-Tale Signs of Concealed Pipe Leaks: Diagnostic Guide for Property Owners
Plumbing Diagnostics
2026-03-15•6 min read

5 Tell-Tale Signs of Concealed Pipe Leaks: Diagnostic Guide for Property Owners

Learn how to spot hidden water line breaks before costly structural mold and ceiling collapse occur.

Q: How do you know if you have a hidden water pipe leak inside walls?

The 3 fastest tests are: 1) Turn off all faucets and check if your water meter dial continues spinning; 2) Look for thermal cold/hot anomalies on walls with an infrared camera; 3) Check for bubbling paint, efflorescence (white mineral crystals), or an unexplained sudden spike in monthly water consumption.

Non-Hacking vs Membrane Waterproofing: Which Method Lasts 10+ Years?
Waterproofing Tech
2026-02-28•8 min read

Non-Hacking vs Membrane Waterproofing: Which Method Lasts 10+ Years?

Comprehensive comparison between chemical penetrative crystallization and full-sheet torch-on membranes for roofs and inter-floor leaks.

Q: What is non-hacking waterproofing and is it effective?

Non-hacking waterproofing uses chemical hydrophobic sealants or high-pressure polyurethane (PU) injection to fill microscopic capillary voids and cracks without hacking away floor tiles. It is 100% effective for inter-floor slab leaks and takes less than 24 hours to cure.

Contractor's Guide to Choosing Valves: Brass vs Stainless Steel vs Bronze
Hardware & Fittings
2026-01-20•5 min read

Contractor's Guide to Choosing Valves: Brass vs Stainless Steel vs Bronze

Hardware specification checklist for plumbing contractors and procurement officers to avoid valve failure under high thermal and chemical load.

Q: What is the difference between brass and stainless steel ball valves?

Brass valves (such as DZR brass) are cost-effective and ideal for residential potable water and non-corrosive domestic supply up to 300 PSI. Stainless steel (SS304/SS316) provides superior resistance to acidic water, chlorine, high temperatures, and chemical degradation in commercial HVAC and industrial processing.

OUR TESTIMONIALS

Powered By Expertise, Proven By Happy Clients

Commercial Waterproofing

"Siang Long solved a 6-month lingering basement infiltration problem within 48 hours using high-pressure PU grouting. Their infrared leak diagnostics spared us from having to shut down tenant facilities."

Tan Boon Hui

Property Director, Horizon Commercial Towers

Non-Hacking Leak Repair

"Our master bathroom had an inter-floor drip causing water marks on our neighbor's ceiling below. Siang Long did a non-hacking seal without breaking a single tile. Professional, tidy, and zero mess."

Jessica Wan

Residential Homeowner, Tanjung Bungah

Hardware Wholesale

"As a contractor, having Siang Long as our hardware supplier has simplified everything. High quality DZR valves and waterproofing resins delivered to our job site on the exact morning we need them."

Raj Kumar

Lead MEP Contractor, Maju Construction Sdn Bhd

Stop Chronic Leaks & Secure Certified Hardware Today

Whether you need urgent acoustic leak detection, rooftop membrane renewal, or bulk warehouse fittings delivered to your construction site across Penang — Siang Long has you covered.

Book On-Site InspectionView Wholesale Depot