Certainly! Here’s a professionally rephrased version of your paragraph:

At BAB AL ZAHRA, we carry out sanitary installations and pipe repair works tailored to client specifications. We also offer comprehensive maintenance contracts covering issues such as blockages, leakages, and corrosion. Our piping services include installations using various materials such as PEX, Copper, UPVC, PPR, HDPE, and MDPE.

Our scope of work includes:
• Installation of hot and cold-water supply systems
• Drainage and sewage system installations
• Water heater installations
• Installation of water tanks, pumps, and pumping stations
• Copper piping brazing and installation
• Swimming pool and irrigation water system networking

We are committed to delivering reliable, efficient, and long-lasting plumbing solutions.