Our Services

We have an environmental service offering for every phase of your project – whether it be consulting; or engineering, procurement and construction services; or even operational and maintenance support.


Consultancy and Engineering

We provide a wide range of consulting and engineering services in the field of environmental technologies. These include feasibility studies, optimisation of your current process, and detailed engineering services for our key technologies.


EPC Contracting

One of our core services is acting as EPC contractor for projects or project components in the field of environmental services. We are in our element bringing projects to life from the design table to commissioning in the field, especially purpose-designed effluent treatment and waste beneficiation plants for our end clients or project developers.


Operations and Maintenance

Our dedicated teams are available to support your internal team with the operations and maintenance of your water treatment or biogas plant and equipment. We create tailor-made packages for the operational service support you require.


Specialty Chemicals and Disinfectants

Aquest Colsen works in close relationship with NutroChem, a leading manufacturer and supplier in the national of certified speciality chemicals. Nutrochem has been manufacturing and supplying tried and tested chemicals and disinfectants for more than 25 years from their ISO 9001:2015 facility, based in Bethal, Mpumalanga.


Industries we serve:

  1. Agriculture: One of the most important sectors of the South African economy, we play a major part in the manufacturing and distribution of Detergents and Disinfectants.
  2. Food and beverage: The Food and Beverage sector needs reliable service and a product-driven approach to ensure that all of their hygiene requirements are met.
  3. Laundry and hospitality: Both privately-owned laundromats and the hospitality industry take advantage of our massive range of clothing, bedding and carpet cleaning chemicals to help ensure the highest level of hygiene and cleanliness.
  4. Industrial and commercial: a large range of chemicals, disinfectants and detergents for the mining, transport and engineering sectors are available.



We produce custom products for the Agricultural, Food and Beverage, Hospitality and Commercial and Industrial Industries in sizes ranging from 1 litre to 1,000-litre containers. We have bulk capacities available and can custom blend batches from 100 kg to 15 tonnes and can store up to 300 000L of bulk chemicals. Nutrochems’ Manufacturing plant and facilities are ISO 9001:2015 certified, giving our customers complete peace of mind. As a unique, value-added service, every customer can custom-print their product labels in-house, speeding up lead times on production and offering flexibility in legal legislation, creating an excellent packaging service for our valued customers.


Our knowledge of the industry sectors in which we work is of such a high standard that we can provide quality internal customer staff training in the following areas:

  1. Basic Bacteria
  2. Personal Hygiene
  3. Housekeeping
  4. Product Application
  5. Safe Handling of Chemicals


Cooling Tower and Boiler Water Treatment

Cooling and heating plants form part of the core structure in commercial, industrial and food and beverage facilities. We provide specific chemical treatment, equipment and services to ensure that the assists are protected. Our services also include performance monitoring, system improvements and water recovery.