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Designing a Sustainable Future

Expert Water Treatment Plant Contractor Since 1992

Providing Clean Water Is Our Priority

Washnah is Committed to Quality Water Treatment


Washnah specializes in designing, constructing, and operating water and wastewater treatment plants for oer clients. Our team of experts ensures that the plants meet all necessary requirements and regulations. We also offer Rehabilitation, Operation& maintenance, and other contracting-related work for existing plants.

Image by Sharon Pittaway
Image by Martin Martz


In addition to municipal plants, we also design, construct, and operate water and wastewater treatment plants for industrial clients. Our team has experience in handling complex industrial water treatment processes and we ensure that the plants meet all safety and environmental standards.

Who We Are

About Washnah 

Washnah Contracting is a contracting company based in Jeddah, Saudi Arabia, specializing in the design, construction, and operation of water and wastewater treatment plants. With a history dating back to 1992, the company has established itself as a longstanding presence in the industry. Our team of experts includes engineers, designers, and operators who work together to provide quality water treatment solutions.


Year of Establishment


Water Treatment Projects Completed


Professional Employees


Business Partners

Ayman Abdulaziz Almosallam

Founder, Washnah Contracting Co. LLC

Our Services

At Washnah, we offer a range of services to meet the water treatment needs of our clients.

Our team of experts works closely with clients to understand their specific needs and provide customized solutions. We use the latest technology and equipment to ensure that our water treatment solutions are efficient and effective.

Design and Engineering

Construction and Installation

Operation & Maintenance

Rehabilitation and Upgrades

Testing & Commission

Our Projects

We take pride in our work and are committed to providing quality water treatment solutions to our clients. Here are some of our completed projects.

Our Clients

We believe in long-term partnerships

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