Professional plumbing & heating services you can trust

From burst pipes and boiler breakdowns to blocked drains, Watertight Plumbing & Heating delivers reliable, high-quality workmanship — carried out to a professional standard and backed by a full guarantee.

  • 24/7 emergency call-outs
  • Fully insured & certified
Watertight Plumbing & Heating branded van

10+ yrs

trusted local experience

Check our coverage

Are we in your area?

We cover Hertfordshire and everywhere within roughly a 20-mile radius. Pop in your postcode to check we can reach you.

Currently serving

  • Stevenage
  • Hitchin
  • Letchworth
  • Welwyn Garden City
  • Hatfield
  • St Albans
  • Hertford
  • Ware
  • Hemel Hempstead
  • Harpenden
  • + surrounding areas
What we do

One team for every job around the home

Whatever's gone wrong with your water or heating, we've got the skills and kit to sort it — cleanly and without the drama.

  • General Plumbing

    Leaks, taps, toilets, burst pipes and bathroom installs — fixed right the first time.

  • Heating & Boilers

    Boiler repairs, servicing, installations and full central heating systems.

  • Drainage

    Blocked drains cleared fast, CCTV surveys and long-term drainage solutions.

  • Bathrooms

    Full and partial bathroom fitting, from a single suite to a complete redesign.

  • Emergency Call-Out

    24/7 rapid response for burst pipes, leaks and heating failures.

  • Maintenance

    Landlord safety checks and planned maintenance to keep things running.

About us

Local, trusted and genuinely watertight

Watertight Plumbing & Heating is a family-run business built on doing things properly. We treat every home like our own — turning up when we say we will, keeping you informed, and leaving the place as tidy as we found it.

  • Upfront, honest pricing with no hidden extras
  • Clean, respectful work in your home
  • Fully insured, experienced engineers
  • Workmanship backed by a written guarantee
Jobs completed
2,500+

Jobs completed

Average rating
5/5

Average rating

Emergency cover
24/7

Emergency cover

Our work

Real jobs, done properly

A few recent installs from around Hertfordshire — from boiler and cylinder swaps to full system builds. Every job is left clean, tidy and tested.

New white Ideal Heating combi boiler with clean copper pipework, next to the old cream Baxi boiler it replacedBefore & After

Combi boiler replacement

Old Baxi swapped for a new Ideal Heating combi with fresh, tidy pipework.

New Ideal Heating Instinct unvented hot water cylinder with neat copper pipework, next to the old blue cylinder it replacedBefore & After

Unvented cylinder upgrade

A dated cylinder replaced with a modern unvented Ideal Instinct system.

A new chrome gooseneck kitchen mixer tap alongside a matte black pull-down mixer tap over a stainless steel sinkBefore & After

Kitchen tap replacement

Fresh kitchen mixer taps fitted and tested over a stainless steel sink.

Immaculate loft heating installation with an Ideal Instinct cylinder, red and white expansion vessels, pump and precise copper pipework

Loft heating system install

A full loft system build — precise copper pipework, pump and expansion vessels.

A modern kitchen with sage-green shaker units, wood-effect worktop, black range cooker and a tall black vertical designer radiator

Kitchen & designer radiator

New kitchen plumbing with a striking vertical designer radiator, all neatly finished.

A new modern square close-coupled toilet next to the older rounded toilet it replaced, against grey tiled wallsBefore & After

Toilet replacement

A tired old toilet swapped for a sleek modern close-coupled unit.

A navy blue bathroom vanity unit with brushed brass handles and matching brass mixer tap over a white basin

Vanity unit & basin

A navy vanity unit and basin fitted with brushed brass tap and handles.

Four newly fitted white panel radiators across different rooms with grey laminate flooring and clean white walls

Radiator installations

Fresh panel radiators fitted throughout — balanced, tested and leak-free.

Google Reviews

What our customers say

5.0

Based on 5 Google reviews

  • "Watertight sorted a leak under our kitchen sink the same day I called. Tidy, professional and fairly priced. Highly recommend."

    S
    Sarah H.a week ago
  • "Fitted a new boiler for us and talked us through every option. No pushy sales, just honest advice. The install was spotless."

    J
    James M.3 weeks ago
  • "Called out for a blocked drain on a Sunday and they were with us within the hour. Absolute lifesavers, thank you!"

    P
    Priya K.a month ago
  • "Reliable, friendly and know their stuff. They now handle all the plumbing for our rental properties."

    D
    Dave R.2 months ago
  • "Refitted our bathroom start to finish. Great communication throughout and the finish is fantastic. Would use again."

    E
    Emma T.3 months ago

Happy with our work? We'd love your feedback.

Leave a review on Google
Get in touch

Book a visit or get a free quote

Tell us what's going on and we'll get straight back to you. For emergencies, calling is always fastest.