Christmas Shutdown Checklist: Protecting Your Business from Plumbing Disasters

The doors are locked, the out-of-office is on, and your team is heading home for a well-deserved Christmas break. But while your business sleeps, a silent and costly threat could be lurking in the empty corridors: your plumbing.

At Plumbers 365, we know that a burst pipe on Christmas Eve that goes undiscovered until January 2nd doesn’t just wet the carpet as it destroys servers, ruins stock, and can force a business to close its doors permanently. Preparation is key. From Legionella compliance to insurance mandates, here is the essential commercial plumbing checklist for your holiday shutdown.

What plumbing checks should businesses do before Christmas shutdown?

According to plumbing experts at Plumbers 365 that conducting a full “wet walk-around” focusing on fixing dripping taps, lagging exposed pipes, and servicing the boiler. Plumbers 365 plumbing experts are often called for Christmas plumbing disasters which are a direct outcome of cumulative small problems which go unchecked. Plumbers 365 plumbing experts suggest the following checklist:

Visual Leak Inspection: Check all known plumbing areas such as kitchenettes, washrooms, plant rooms, especially for any signs of drips or leaks.
Toilets and Taps: Ensure all taps are fully turned off and no toilets are continuously running.
Boiler and Plant Room: Check the boiler’s pressure and look for any error codes. Ensure the area is clear and accessible.
External Pipes and Taps: Insulate any external pipework and taps. Disconnect all hoses.
Review your Emergency Plan: Ensure keyholders know where the main water stopcock is and have the number for an emergency plumber.

Should I turn off the water supply to my commercial premises over Christmas?

According to Plumbers 365 plumbing experts, unless you have essential water-fed machinery or fire sprinkler systems, isolating the mains stopcock is the single safest action you can take. Plumbers 365 plumbing experts have often observed that if a pipe bursts while the mains are on, water flows indefinitely. If the mains are off, the leak is limited to the water currently in the pipes (residual volume). However, there are critical exceptions:

Fire Sprinkler Systems: These systems MUST remain active and pressurised according to plumbing experts at Plumbers 365. Never isolate the water supply to a fire suppression system.
Wet Central Heating Systems: Your boiler needs to be connected to the water mains to maintain pressure. If you are leaving the heating on (which you should), the heating circuit cannot be completely drained.

In many buildings, it’s possible to isolate the general domestic hot and cold water while leaving the heating and sprinkler systems operational. A professional plumber like those at Plumbers 365 can help identify the correct valves.

How do I protect my office building from frozen pipes during the holiday closure?

Plumbers 365 plumbing experts suggest that this being a multi-step process, maintaining a consistent low-level background heat and ensuring all pipework is lagged is very crucial. The multi-step Plumbers 365 plumbing experts approved process is:

Maintain Background Heating: Do not turn the heating off completely.
Insulate Everything: Use pipe lagging (foam tubes) on all exposed pipework, especially in colder areas like warehouses, lofts, and basements.
Allow Air to Circulate: Open the doors to cupboards and plant rooms to allow warmer air to circulate around the pipework.
Seal Draughts: Check for and seal any draughts from windows, doors, or vents near pipework.

What temperature should I keep my commercial premises during Christmas shutdown?

Heating experts at Plumbers 365 advise against turning your heating off because the cost of running low background heating is insignificant compared to the cost of a burst pipe. Plumbers 365 plumbing experts recommend maintaining a minimum ambient temperature of 12°C to 15°C. According to plumbing experts at Plumbers 365:

Many newer boilers have a “Frost Setting” that kicks in at 5°C
In large commercial buildings, the thermostat might be in a warm hallway while the pipes in the basement or roof are at -2°C
Keeping the system set to 12°C provides a safety buffer, ensuring that the cold spots in the building structure do not reach freezing point.

Do I need to run water in my business premises during the Christmas break?

According to plumbing experts at Plumbers 365 you need not run water in your business premises during Christmas break as it is an old myth and is ineffective and wasteful. “Running a tap” will not protect a whole building’s plumbing system from freezing. Plumbers 365 plumbing experts advise about the correct professional approach is to either drain the system down or protect it with background heating and insulation. But plumbing experts at Plumbers 365 mandate clients to implement a rigorous Legionella Flush Regime immediately upon reopening in January because:

Stagnant water between 20°C and 45°C is a breeding ground for Legionella bacteria
A 10-day shutdown allows bacteria to multiply

Plumbers 365 Expert Advice: You do not need to send someone in on Christmas Day to flush toilets. However, on the first day back, no one should use the water until every tap and shower has been flushed for at least 2 minutes. This is a requirement under the HSE Approved Code of Practice L8.

What happens if a pipe bursts in my commercial building over Christmas?

Plumbing and drainage experts at Plumbers 365 have often seen that in an empty building, a burst pipe can leak continuously for days before being discovered. Plumbers 365 plumbing experts have observed that without rapid intervention, water travels vertically through floors, destroying electrical infrastructure, IT servers, and causing structural rot. Plumbers 365 plumbing experts have seen that the consequences of burst pipes in commercial properties are severe:

Widespread Water Damage: Ruined carpets, collapsed ceilings, damaged plasterboard.
Stock and Asset Destruction: Water can destroy electronics, paper records, and saleable goods.
Business Interruption: The building may be unusable for weeks, leading to lost revenue and productivity.
Mould Growth: Damp conditions create a secondary health hazard that requires costly remediation.

How do I drain down commercial water systems before a long shutdown?

According to drainage experts at Plumbers 365 a “ full “drain down” is the most comprehensive way to protect a building. It involves:

Shutting off the main stopcock.
Systematically opening all taps and drain points at the lowest parts of the system to empty all water from the pipes and tanks.
Add salt to toilet bowls (u-bends) to prevent the trap water from freezing and cracking the porcelain.

For a complex commercial building, this is a job for a professional plumbing personnel like those at Plumbers 365. Systems can have multiple sub-zones and dead legs where water can get trapped. A missed section can still freeze and burst. Plumbers 365 offers professional drain-down services for commercial clients.

Should I have an emergency plumber on call for my business over Christmas?

Plumbers 365 plumbing experts consider having an emergency plumber on call as critical part of your business continuity and risk management plan. Relying on Google on Boxing Day is risky. You should have a pre-agreed Service Level Agreement (SLA) with a 24/7 provider like Plumbers 365. During the holidays, many domestic plumbers shut down. Commercial plumbers are in high demand but if you have a contract or an account with Plumbers 365, you are a priority client. This guarantees that if your security guard finds a leak at 4 a.m. on December 26th, we will be there, preventing minor damage from becoming a total loss.

Protect Your Business. Enjoy Your Break.

Your Christmas break should be a time to relax and recharge, not to worry about your business premises. A small amount of preparation can secure your property and prevent a disastrous start to the New Year.

Plumbers 365 is your trusted partner for commercial plumbing. We provide: