The harsh winters that we face in the Windy City push radiator systems to their limits, causing pipes and valves to expand and contract until they weaken and start leaking.
At ServiceMaster Restoration by Zaba, we’ve been providing homeowners and businesses across Chicago with water damage restoration services for decades, and we know how quickly a small leak can soak floors and damage walls if it isn’t handled right away.
In this guide, we’ll explain the causes of radiator leaks, how to address them, and how to prevent further damage.
Key Takeaways
- If you notice that your radiator is leaking, turn off the system and let it cool, turn off the valve, dry any water as quickly as possible, watch for any nearby electrical hazards, be sure to watch for any nearby electrical hazards and let any water that leaked out cool before trying to absorb it with towels.
- Common causes of radiator leaks include corrosion, loose or failing valve connections, failing valve packing, cracks in the system, excessive pressure, and air bubbles.
- ServiceMaster by Zaba can help if a leaking radiator causes water damage to your walls and floors by cleaning and restoring any impacted areas.
Immediate Steps to Take After a Radiator Leak
Every second matters when your radiator starts leaking, as water damage can spread quickly, causing mold growth and structural issues.
As soon as you notice a radiator leak, you should:
- Keep a safe distance from hot radiator water, and always check for nearby electrical outlets and appliances to avoid potential hazards.
- Turn off the radiator and let it cool.
- If you can safely reach the shutoff valve, turn it clockwise to turn it off. If you have a numbered (or thermostatic) valve, turn it to 0 or “off.” If you have a lockshield valve, turn it clockwise as far as it will go.
- If there’s still water pouring from the radiator, use buckets or pans to catch it.
- Once the water that leaked is cool, begin soaking it up with towels. If you have a wet-dry vacuum, use it to clean some of the water.
- Take pictures to document the water damage. If you’re filing a claim with your insurance for the damage, these photos will come in handy later.
- Call ServiceMaster by Zaba to handle any water damage caused by the leak: (773) 647-1985
Common Causes and Fixes
1. Corrosion
One of the most common causes of a leaking radiator is corrosion within the system.
Radiators often corrode over time as water and oxygen break down the system, causing metal components to rust.
Signs:
Rusty water dripping from the system often points to corrosion.
How to Fix It:
Flush your system to remove sediment buildup and restore proper heat flow, but leave the job to a professional HVAC technician to prevent internal damage, leaks, or system failure.
They might recommend sticking to a regular flushing schedule to prevent corrosion and keep the system from rusting.
2. Loose Valve Connections
Loose or failing valve connections also produce water leaks. When these connections loosen or wear out over time, water starts to escape the system.
Signs:
Drips or moisture forming where the valve connects to the radiator or supply pipe are the most common signs that you have damaged connections.
How to Fix It:
Let a professional HVAC company replace your connections if they’re damaged.
Schedule routine maintenance with an HVAC professional to ensure that your connections are tight and in good working order.
3. Failing Valve Packing
Your radiator valve has packing inside it that helps create a watertight seal around the valve stem.
Over time, this packing dries out and decays, which weakens the system’s ability to keep water inside.
Signs:
When the system runs, look for drips around the valve. If you notice them, turn off the system and let it cool.
How to Fix It:
If you’re comfortable replacing this packing, you can do it on your own, but if not, an HVAC technician can do it for you.
4. Cracks
Radiators can crack over time, largely due to age and excessive use. Since winters in Chicago get so cold, radiators are working overtime, which leads to wear and tear.
Signs:
Water dripping from the body of the radiator generally indicates a crack somewhere in the system. Larger cracks may cause water to pour out instead of slowly dripping.
How to Fix It:
While small cracks may be temporarily fixed with a special epoxy, you’ll generally need to replace a cracked system.
If one section cracks, the rest of the radiator will probably fail soon, so it’s wise to start thinking about getting a new system.
5. Excessive Pressure
Radiators rely on high pressure to convert water into steam that gets used to heat your home.
When the pressure is too high, it can create cracks in hoses, valves, and even in the body of your radiator.
Signs:
Bulging hoses, high-pressure readings, and leaking relief valves generally point to excessive pressure.
How to Fix It:
Seal the cracks or replace damaged parts. From there, set the PSI to somewhere between 12 and 15.
6. Air Bubbles
Trapped air creates areas of high pressure that place excessive stress on some internal components.
When those components face too much pressure, they may fail, resulting in a water leak.
Signs:
Strange gurgling or hissing noises point to air bubbles being caught in the system. Cold spots on the body of the radiator also indicate the presence of these bubbles.
How to Fix It:
Turn the system off and let it cool before trying to bleed the system. If that’s not something that you’re comfortable doing, an HVAC professional can handle the process for you.
When to Call ServiceMaster Restoration by Zaba
After a radiator leak, act quickly to prevent water damage from spreading. Inspect the area around the radiator and watch for these warning signs:
- Discoloration on walls or ceilings
- Peeling, bubbling, or cracking paint
- Warped, buckled, or soft flooring
- Musty odors
- Visible mold or mildew growth
If you notice any of these issues, it’s time to call ServiceMaster Restoration by Zaba.
Our team will remove standing water, thoroughly dry the affected areas, and repair the damage to restore your property.
We also assist with the insurance claims process by documenting the damage and working directly with your provider, making the entire experience faster and less stressful.
Dealing With Water Damage After a Radiator Leak in Chicago? We Can Help
A leaking radiator can make your home uncomfortable during frigid Chicago winters, but water damage can be even more severe.
Structural and cosmetic damage, along with mold and mildew growth, threaten the health and safety of everyone in your home.
If you need water damage restoration in Chicago, call ServiceMaster by Zaba at (773) 647-1985.
FAQs
How much does it usually cost to fix a radiator leak?
Several factors influence the cost of fixing a radiator leak.
The HVAC company that you choose, the cause of the problem, and how extensive the issue is will all play a role in how much you pay to have the system repaired.
Is a leaking radiator dangerous?
Yes, water leaks coming from your radiator are dangerous. Not only is there a risk of fire or electrical issues, but leaking water also leads to mold and mildew growth.
That’s why it’s so important to get the issue resolved and the water damage remedied as quickly as possible.
Does insurance cover radiator leaks?
This depends on multiple factors. First, you need to review your insurance policy to see if plumbing leaks are covered.
Secondly, you’ll need to see if the policy covers “sudden and accidental water damage,” which typically includes radiators and boilers.
Insurances often refuse to pay for damage that happened slowly over time since they’re often considered preventable.
