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Watertight Plumbing Services


6 Reviews

Opening Hours
Today - 08:30–17:30
  • Monday 08:30–17:30
  • Tuesday 08:30–17:30
  • Wednesday 08:30–17:30
  • Thursday 08:30–17:30
  • Friday 08:30–17:30
  • Saturday - Closed
  • Sunday - Closed


Maintrade Enterprises Limited trading as Watertight Plumbing Services.

WPS is based in Mill Hill, NW7, and has been established for over 17 years with a combined experience of over 50 years and is a general plumbing company, covering all aspects of plumbing to a professional level.

We carry out complete bathroom and kitchen installations, from floor to ceiling and have experienced teams carrying out the work, all based on a written estimate. We carry out heating installations to the largest domestic size, We cover all maintenance and repairs. Over 70% of our work comes from personal recommendations and referrals and customer satisfaction is our number 1 priority.

We offer a free estimate for new installations giving an exact breakdown of the works to be done. We have no call out charge, and will quote you our hourly rate for emergencies, repairs and breakdowns. We are a member of the Gas Safe Register, and registered for un-vented cylinders.

What we do

  • Plumbers

    • Unvented cylinder installation and maintenance
  • Boiler, central heating and gas engineers

    • Gas safety testing and inspection
    • Radiators and central heating
    • Underfloor heating
    • Boiler installation
    • Boiler repair
    • Boiler servicing
    • Gas cooker installation
    • Immersion Heaters
    • Power flushing
  • Heating contractors

    • Central heating systems (installation and servicing)
    • Immersion Heaters
  • Bathroom fitters

    • Bathroom Installation
    • Bathroom design services
    • Bathroom refurbishment
    • Bathroom suppliers
    • Electric Showers
    • Wet rooms
    • Bathroom tiling
  • Kitchen fitters

    • Kitchen design
    • Kitchen installation
    • Kitchen refurbishment
    • Kitchen tiling
    • Kitchen worktops
  • Drain clearance contractors

    • Blocked drains
    • Drain and sewer services
  • More Services

    • gas fire installation

Customer reviews

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6 reviews
Customer Service
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Fixed a leaking shower
Customer Service
Adam came on Saturday to fix a leaking shower that involved taking the plate off a tiled wall. He fixed the problem (which Thames Water had advised me about as my meter was running constantly) but also advised on some other work on my radiators and heated towel rail I asked him about. He was helpful, polite, skilled and professional. I was recommended WPS by my builder and will definitely use them again for all my work.
Customer in Greater London Posted on 29/11/2023 , work completed 25/11/2023
Customer Service
For a long time, our hot water was very slow to power our shower. We had the boiler serviced every year by the manufacturer who never noticed the problem. Watertight came and checked the boiler and found the unlying fault. A shut off valve, which was opened and rapidly restored the flow to normal. We have been able to reduce the water temperature. They also replaced our smart thermostat with Hive and that has made an amazing difference. I will now use them for all my plumbing needs
Customer in Greater London Posted on 11/04/2023 , work completed 02/02/2023
Fantastic service
Customer Service
I used Watertight Plumbing Services for a problem with my underfloor heating. They were highly professional, knowledgeable and a pleasure to deal with. The engineer not only fixed the problem, but also noticed something else wrong with the boiler and fixed that too. I can't recommend them enough - great value too.
David in Greater London Posted on 29/10/2022 , work completed 14/10/2022
Boiler service and repair
Customer Service
WPS initially installed my boiler around 10 years ago and have maintained it on a regular basis since then. They are responsive, professional and easy to contact via e-mail or phone, and work is carried out to a very high standard. It is particularly good to have continuity and still be working with the same team that installed the boiler.
Customer in Greater London Posted on 22/11/2021 , work completed 11/11/2021
The trader replied (on 24/11/2021)
Thank you for taking the time to write such a lovely review for WPS. It is greatly appreciated by the WPS Team.
I would highly recommend
Customer Service
WPS are fantastic plumbing and heating engineers, they are reliable, efficient and well priced. Any radiator or boiler problems, they are the ones to fix it. I highly recommend them to everyone.
asilver33 Posted on 14/02/2017 , work completed 14/02/2017
Professional service and reliable
Customer Service
I used Ian and his team to replace my radiators due to remodeling in my house and also upgraded my boiler. He came round and calculated the correct sizes and BTU for all our rooms and fitted the correct size boiler for my requirements. His team completed the work within the estimated timescale and the price was fair. Elaine in the office was great and kept me updated with what was happening which I appreciated as I travel and couldn't be home. I would happily recommend Ian and his team for all plumbing and heating work.
Gero Posted on 14/01/2017 , work completed 14/01/2017