Water Backup and Sump Pump Coverage in NJ: The Endorsement Most Policies Leave Off

It rains all day. The sump pump runs, and runs, and then at some point it does not. By morning there is an inch of water across the basement floor, the boxes on the bottom shelf are soft, and the first question anybody asks is whether insurance pays for this.

The honest answer is that it depends almost entirely on where the water came from — not on how much of it there was, and not on how bad the damage looks. A New Jersey homeowners policy sorts water into categories that have very little to do with how a wet basement feels to the person standing in it.

Three kinds of water, often three different answers

Most of what ends up on a basement floor in this state falls into one of three buckets.

• Backup through a sewer, a drain, or a sump that failed or overflowed. This is water that came up through the plumbing or through the pit rather than in from outside. A standard homeowners form generally excludes it — and carriers generally sell it back as an endorsement, usually called something like water backup or sump overflow coverage.

• Rising water from outside the house. That is flood, and flood is not a homeowners question at all. It is a separate policy, written through the National Flood Insurance Program or a private flood carrier, and there is typically a waiting period before a new flood policy takes effect. If that is your situation, start at floodsmart.gov and then read our guide to homeowners and flood insurance at the Jersey Shore.

• Slow seepage through the foundation over weeks or months. The damp corner, the efflorescence on the block, the smell. This is generally treated as a maintenance problem, and generally speaking nothing covers it — not the homeowners policy, not the endorsement, not flood.

Three kinds of water. Often three different answers. Same wet basement.

Nobody remembers declining it

Here is what makes water backup different from most of the coverage we write about. A deductible is a number somebody chose, even if they do not remember choosing it. A dwelling limit is a number that quietly adjusts itself every year. But water backup is not a number at all — it is a line that is either on your policy or is not.

And when it is missing, it is usually missing because it was never on the page to begin with. It was not weighed and rejected. Nobody sat down, considered the risk of a sump failure during an October downpour, and decided against it. Nobody remembers declining it, because most people were never really asked.

The coverage and the pump are two different problems

This is the part that gets collapsed into one thing, and it should not be.

The endorsement is what pays after water comes up. The equipment is what keeps the water from coming up in the first place. They solve different problems and buying one does nothing for the other. You can carry the endorsement and still spend a weekend hauling out ruined carpet. You can have the best pump on the street and still find out that the day it finally quits, there was no coverage attached to it.

Most homeowners policies also carry general maintenance and reasonable-care conditions, which is another way of saying that the equipment side is not purely optional even when the coverage side is handled. We wrote about how those conditions tend to work in our piece on fall home maintenance and NJ homeowners claims.

On the equipment side, the two things that come up most in conversation are a battery backup — because the power and the rain tend to fail together in a nor'easter — and a backflow valve on the sewer line. Both are plumbing work, not insurance work, and we will come back to that below.

What we are not going to tell you

We are not going to tell you what a water backup endorsement costs, what limit is typical, or exactly what your version of it covers. Those vary by carrier and by form, and some policies write it as a flat limit while others handle it differently. Guessing at it here would be worse than useless. New Jersey insurance is regulated by the NJ Department of Banking and Insurance, and the specific terms live in the policy your carrier actually issued.

We are also not going to quote you a flood waiting period from memory. That is set outside the carrier and it is exactly the kind of detail that changes. floodsmart.gov has it.

What we will say plainly is that the one thing you most need to know — whether the line is on your policy or not — is not a mystery and does not require a phone call. It is written down, and you already own a copy. It is on your declarations page, and if it is there it will say something close to water backup or sump overflow.

If there is nothing below grade, this one may not be for you

A slab house with no basement, no crawlspace, no sump pit and nothing stored below ground level is a house where all three of those buckets get a lot less interesting. The backup branch needs somewhere for the water to come up into. The seepage branch needs a foundation wall with something behind it.

If that describes your house, this may honestly not be worth your money, and we would rather tell you that than sell you something. The same goes for the reader who checks the dec page and finds the line already sitting there — that is the best possible outcome of reading this, and it takes ten seconds to confirm.

Who to call first — and some of it is not us

Two calls, in this order.

• Your agent or carrier, about the policy. Is the water backup or sump overflow line present, and if it is, what limit does it carry? That one genuinely is our job, and it is a short conversation.

• A plumber, or a company that services sump pumps and basement waterproofing, about the equipment. Is the pump actually working, is there a battery backup, is a backflow valve practical on your line? No insurance agent can answer any of that, and anyone who tries should be ignored.

If you are only going to make one of those calls this month, make the plumbing one. The coverage question will still be there in November. The first all-day rain might not wait.

The two things worth doing before the next all-day rain

Ranked, because they are not equally useful.

• Find the water backup line on your homeowners declarations page. Present or absent. That is the whole task, and it is the only fact in this article that is specific to you.

• Test the pump and ask about a battery backup. Pour a bucket in the pit and watch what happens. If nothing happens, you have learned something more valuable than anything on the dec page.

And if water has already come up and you are weighing whether to open a claim at all, read when filing a small claim costs more than it pays before you call anyone's claims line. If the house is one you leave empty for part of the year, the freeze and vacancy conditions in our winter vacancy piece matter at least as much as this does. And if you have ever wondered why your storm deductible is written as a percentage rather than a dollar figure, that is a separate and equally surprising line on the same page.

Not because any of this is expensive to sort out in October, but because standing on the basement stairs at two in the morning watching the water come up is the expensive way to find out which of the three kinds of water you have — or that you were not covered for any of them.

One free application, several carriers compared

We are an independent agency, which means we are not quoting you one company's answer. One application, several carriers side by side, including what each of them does with the water backup line.

Start a free comparison quote at igoquote.com or call us at 844-446-4628.

Christopher Dean & Associates, PC — Brielle, New Jersey. NJ Producer License 9954304. We are licensed in multiple states, and most of what we write is about New Jersey because that is where we live.