Service Overview
The Four-Treasure Works adds outer and inner frame rubber weatherstrip replacement to the Safety Accessories Works, providing comprehensive waterproofing. Deteriorated seals are a primary cause of window-edge leaks; regular replacement prevents rainwater entering the home and protects walls and interior finishes.
We use high-density silicone rubber weatherstrips — heat-resistant, acid-resistant and pressure-resistant — with a flexible design for lasting sealing performance. The Four-Treasure Works is especially recommended for units facing the sea or typhoon-prone directions.
What's Included
- ✓All Safety Accessories Works services included (hinges + handles)
- ✓Outer frame rubber weatherstrip replacement
- ✓Inner frame rubber weatherstrip replacement
- ✓Waterproof sealing treatment
- ✓Post-installation waterproof maintenance
- ✓Site clean-up on completion
Why Choose Amgen
- ★Comprehensive waterproofing — stops window-edge leaks
- ★High-density silicone rubber weatherstrips — heat and acid resistant
- ★Improved sound insulation for a better living environment
- ★Ideal pre-typhoon season preventative maintenance
Suitable For
Frequently Asked Questions
What four items does the Four-Treasure Works include?
The Four-Treasure Works is Amgen's most popular window maintenance package, covering four key items in one go: replacing oxidised hinges, replacing loose or broken handles, replacing hardened and contracted internal and external silicone rubber sealant strips, and re-applying silicone for waterproofing. It suits comprehensive maintenance of older windows at good value.
How does the Four-Treasure Works differ from a full window replacement?
The Four-Treasure Works replaces worn accessories and redoes the waterproofing while keeping the existing frame, from $250 per window — far less than a replacement — and suits units whose frames are still sound. If the frame is deformed or badly damaged, a full window replacement should be considered.
Does the Four-Treasure Works need scaffolding?
Most Four-Treasure Works can be handled by removing the sash indoors, with no scaffolding needed. After an on-site diagnosis the technician explains the method and provides an itemised, transparent quote.
⭐ Complete Waterproofing — No More Leaks






