Professional aquarium installations in Middlesex, Surrey, Hertfordshire and surrounding area’s.

For stylish and bespoke built aquariums in Middlesex, Surrey, Hertfordshire and surrounding area’s, look no further than Underwaterworld. Whether you want a small freshwater tank or a big tropical aquarium, we have the expertise to design and install the aquarium for you!

Our Services




Fish & Coral

A range of aquarium services

  • Aquarium design and installation
  • Tank drilling
  • Aquarium maintenance
  • Aquarium aquascaping
  • Your local aquarium specialists

    We work closely with you to understand your requirements and aim to achieve a seamless translation of your vision into a living piece of art. We personally oversee each stage of the aquarium installation and maintenance services to guarantee the highest standards of work whilst maintaining a personal service. Call us to book an appointment today!


    “Mark has been looking after my tank for 5 or 6 years now and as well as always offering a friendly and reliable service, his standard of work is excellent. I would not hesitate to recommend his services to anyone.
    P.S. Always make sure you have plenty of tea bags!”

    – Ray Carey

    “Mark, a big thank you to you and your guys!
    I’m embarrassed to say my tank was a mess. The boys came in and within a couple of hours moved the tank to the other side of the room and made it look like new. They made it look so easy, were professional and very knowledgeable. I would not hesitate to recommend you and your team.

    – Bina

    Looking for aquarium specialists?

    Established in December 2003, Underwaterworld specialises in installations and maintenance of all types of aquariums, including cold water, freshwater, tropical, and saltwater. We can also work on marine fish only systems and marine reef tanks. Based in Northwood, we serve clients throughout the M25 area, including Watford and Ruislip. We have recently started global operation and are happy to have numerous happy global clients.

    We supply fish tanks, fish food, fishes, corals and much more. Delivery service is available for customers based in the M25 area. All our services are tailor made to the individual requirements, and we are available 24 hours for emergency call-outs.

    To install an aquarium in your home or office, call Underwaterworld on