Aquarium maintenance specialists in Middlesex, Surrey, Hertfordshire and surrounding area’s.

Does your aquarium need to be cleaned? Call Underwaterworld for quality cleaning and maintenance of your aquarium.

Our Services




Fish & Coral

You can rely on us for:

  • Servicing and cleaning of filtration units, CO2 units, lighting units, etc.
  • Cleaning of the cover glass and trim
  • Monitoring the water quality parameters
  • Cleaning of the plastic plants and bleaching the dead corals
  • Changing the water and cleaning the gravel
  • 24-hour emergency call-out services
  • More about our services

    We use only quality salt and RO water for our aquarium cleaning services. We can look after your aquarium while you are away on holiday. Whether it is a cold water aquarium or a marine fish only system, you can put your trust in our aquarium maintenance services. Call us with your queries today!


    “Underwaterworld regularly serviced our fish tank and were involved in the installation of this into our living room. They have always been available to assist with any emergency problems and the tank is looking fantastic.”

    – Sarah Greaves

    “Mark and his team are very friendly, knowledgeable, and always at hand should we need assistance. They maintain a high level of customer relations, we are pleased to have done business with them, and have given their names to other companies.”

    – Chris Turner

    Aquarium maintenance services

    With many years of experience in the business and nationwide coverage, we are one of the leading aquarium and fish tank maintenance companies in Middlesex, Surrey, Hertfordshire and surrounding area’s.. We clean filtration units, CO2 units, fix pumps, and UV lights. We can also completely revamp the systems and clean the interiors and exteriors of the tank thoroughly. We change the water and clean the gravel using the reverse osmosis technique. Call us for further information.

    To view our aquarium fish stock, book an appointment today! Call us on