What an exploding toilet taught me about home warranties

Have you ever decided to replace a water heater or something else in your house, and it triggered a whole cascade of other costly problems? When we rehabbed my brother’s house in California, replacing the horizontal plumbing lines from the street resulted in also having to replace the vertical pipes. That led to having to upgrade the electrical box and the roof vents to meet current code.

My most recent lesson came from an exploding toilet that resulted from an upgrade to my water filtration system. 

When we built our home 10 years ago, we installed a whole-house filtration system with a salt-free water conditioner and UV light that made our water drinkable, even during boil water warnings. The UV light needed replacing, and the filtration elements had a 10-year life span. I had the plumbers who installed the original system replace those parts. 

The installation required turning off the water. The result was a considerable amount of air in the pipes, which created an explosive rumbling so loud the house shook. I went through the house and turned on all the faucets to get the air out of the pipes.

When I flushed the toilet in the primary bath, it was making a very loud, strange noise. I had already had issues with that toilet, where the small rubber tube that feeds water into the bowl kept popping loose. 

When I opened the tank to investigate the noise, the tube popped up, spraying water all over the walls. Fortunately, I was out of the line of fire and was able to get a plumber out before the big ice storm hit the next day. The water was black — not only in the primary but also the second bath as well. 

When it rains, it pours

In fewer than 60 days, I had my kitchen faucet completely freeze up due to our hard water, both kitchen garbage disposals went out within five days of each other, and so did the circuit breaker for my big side-by-side refrigerator. 

My plumber explained that Austin’s hard water is the reason toilets and garbage disposals in the area only have a 10-year expected lifespan. In contrast, in California, we could date old houses by the manufacturing date stamped on the lid of the toilet, sometimes as far back as the early 1900s.

What really happened was that the rubber grommets and other mechanisms inside both toilets had slowly been wearing down due to the hard water. Moreover, the calcium deposits had been slowly building up in the pipes and inside the holes in the toilet where the water flows in. 

I have a home warranty policy — no worries, right? 

Like many other people, I had some misconceptions about how home warranty companies work. In my case, my home warranty company lets me choose my own contractor. This feature allowed me to schedule a plumber the same day to do a stopgap repair on the toilet before the ice storm.

Without this feature, it could have been a week or more before I could have scheduled a plumber due to the storm.   

Here’s how the home warranty process usually works: 

1. You file a claim with the home warranty company, explain the problem, and if they approve, they give you a claim number. At that point, you can schedule your contractor. There’s usually a $75-$100 fee for the service call. 
2. The contractor comes to the property, assesses the problem, takes photos if required, obtains the make, model, and serial number, and then discusses what repairs or replacement are needed.  
3. If you approve, you call the home warranty company and give them the claim number. You then put the contractor on the phone to explain the problem, and they will either approve or disapprove the proposed work. 
4. For my two disposals and the faucet, the reimbursement was a flat $150 per item, with me paying for the service calls. I only had to submit the receipts. 
5. This is where I bumped up against policy limitations. The total cost for removal of the old toilets and installation of the new ones was about $2,100. I was offered $500 as per my policy limits. (The faucets and disposals were replaced in December of 2025.) 

In terms of the bad circuit breaker, I first thought it was a problem with my refrigerator. I called a certified Kitchen Aid technician to assess what was wrong. The technician said the circuit breaker was the cause. The home warranty company approved the repair, but again, my policy only reimbursed me for $500. 

The bottom line is that any plumbing or electrical repairs for the rest of the year are my responsibility. 

Major misconceptions most home warranty users have

1. Home warranties are NOT insurance policies

The idea that “If it breaks, the home warranty company will replace it” is a myth. Home warranties are service contracts with limited repair and depreciated replacement. Systems must be in working condition at the time the policy was issued. 

As noted above, they have flat reimbursement rates on many common items as well as annual policy limits for certain categories of repairs. Also, if an item in your house is 10 years old, and it can’t be fixed, you will be lucky to get $50. 

2. What they usually do not cover

First, if you cannot find the model and serial number, there’s a strong chance it won’t be covered. In addition to not covering replacement value and pre-existing conditions, home warranties also don’t cover improper installation, code violations, mismatched systems, obsolete parts and cosmetic issues. 

3. How depreciation value works in practice

Most home warranties promise repair first. If they can’t repair it, they either offer a comparable model with the amount being based on age, condition and policy limits. The older the system is, the less you will be able to get back from the home warranty company. 

4. Surprises you will have to pay for

If the building codes have changed and require updated venting, electrical work, permits, etc., that’s the homeowner’s expense. Also, if the contractor must open walls, modify ductwork, or retrofit an older appliance or system, that’s also the homeowner’s responsibility. 

Additional costs can include non-covered parts, disposal fees, labor fees beyond contract limits, etc. Finally, the home warranty determines what’s comparable, not what the homeowner expects. 

The bottom line is that a home warranty reduces costs but doesn’t eliminate them. If you or your clients believe you’re getting something repaired for nothing, you’re sadly mistaken.