Some of our customers

Commercial Water Tank Replacement & Repair Specialists

With over twenty five years of experience in the repair, refurbishment and cleaning of water tanks for commercial clients, Express Water Tanks’ policy of professionalism and efficiency is at the forefront of the south east England based family run business.

Before any repair, cleaning or installation, surveys are carried out by experienced and certified staff allowing for a detailed quotation to be supplied, complete with risk assessment, method statement and estimated timescale of works. This allows our clients to mitigate downtime, budget for repairs and reduce disruption to their business.

Our replacement water tank technicians are available 24 hours a day; 365 days a year for emergency and scheduled plumbing and water tank repair or replacement works. Express Water Tanks list of services include valve and pipework replacement works, chlorination of tanks and pipework, supply and installation stainless steel grp ladders and handrailand roof edge protection – visit our services.

Express Water Tanks - Our Services

our services

Express Water Tanks - Emergency Call Out

emergency call-out

Express Water Tanks - Our Experience

our experience

Read about our latest installs, services and news…

  • 5 Signs Your Commercial Water Tank May Fail Soon

5 Signs Your Commercial Water Tank May Fail Soon

May 29, 2026|

Commercial water tanks are often hidden away in plant rooms, basements and rooftop service areas — out of sight and, unfortunately, out of mind. However, ageing water storage systems can quickly become a serious issue [...]

GRP Cold Water Tank Repair & Replacement for Commercial Buildings

April 28, 2026|

GRP (Glass Reinforced Plastic) cold water storage tanks are widely used across commercial buildings due to their durability and corrosion resistance. However, ageing components, poor maintenance and changing regulations mean many systems now require professional [...]

Express Water Tanks - Water Tank Replacement

water-tank
replacement

supply & installation of one piece, two piece and sectional tanks

Express Water Tanks - 24 Hour Emergency Call Out

24 hour emergency
call out service

if you’re caught in a tight spot and need emergency help, we’re here for you.

Express Water Tanks - Water Tank Replacement

water-tank replacement

supply & installation of one piece, two piece and sectional tanks

Express Water Tanks - 24 Hour Emergency Call Out

24 hour emergency call out service

if you’re caught in a tight spot and need emergency help, we’re here for you.

Commercial Water Tank Services

Everything you need to keep a commercial building’s cold water storage safe, compliant and working, from one family-run specialist.

Water Tank Replacement

Removal of failing steel and GRP tanks and installation of new one-piece, two-piece and sectional tanks, with temporary supply to keep your building running.

Cleaning & Servicing

Draining, cleaning and chlorination of commercial water tanks, plus remedial works to lids, screens, insulation, valves and pipework.

Refurbishment & Relining

Repairing and relining structurally sound tanks to stop corrosion and leaks, a lower-disruption alternative to full replacement.

GRP Sectional Tanks

Modular GRP tanks assembled on site, ideal for plant rooms, roof voids and buildings where access is tight.

How We Work

A straightforward, fully planned process, so you know exactly what’s happening and your building keeps running.

1

Survey

An experienced, certified engineer inspects your tank, access and pipework.

2

Quote & RAMS

A detailed quote with risk assessment, method statement and timescale of works.

3

Temporary supply

Where needed, a mains bypass or temporary tank keeps water flowing throughout.

4

The works

Carried out by our own in-house engineers, with no sub-contractors.

5

Handover

The tank and pipework are chlorinated and returned to service.

Compliance & Water Safety

Our installations use WRAS-approved tanks and are carried out in line with the Water Supply (Water Fittings) Regulations and ACoP L8 guidance on Legionella control.

  • Byelaw upgrades to L8 water regulations
  • Cross flow installations to improve turnover
  • Insulation to keep stored water below 20°C
  • Properly fitted lids, screened vents and overflows

Areas We Cover

Based in the South East, we work on commercial buildings across the country.

Who We Work For

Hotels, office blocks, apartment buildings, property managers, public sector buildings and development projects. Our customers include the NHS, Transport for London, Heathrow, Christie’s, the National Trust, HM Prison & Probation Service and McDonald’s.

Frequently Asked Questions

Can you keep our water running during a tank replacement?

Yes. Where needed we install a mains bypass or temporary tank so the building keeps its water supply while the work is carried out.

Do you offer emergency call-outs?

Yes. Our engineers are available 24 hours a day, 365 days a year for emergency and scheduled water tank repairs and replacements.

Should we repair or replace our water tank?

It depends on the condition of the tank, access and how the building uses water. After a survey we’ll give you an honest recommendation, whether that’s cleaning, refurbishment or a full replacement.

Do you use sub-contractors?

No. Our in-house team of experienced engineers handles every project from start to finish.

Need a water tank survey?

Our engineers are available 24 hours a day, 365 days a year.