Heavy Rain in Washington: Is Your Drainage System Ready for Weeks of Nonstop Water?
Do you remember that week last November when it rained for seven straight days? 🌧️😩
Not a dramatic storm. Not wind and lightning. Just… rain. Day after day. Steady. Relentless. The kind of rain that makes you wonder if the sun will ever come back.
Your home remembers.
Because during that week, something was happening outside that you couldn’t see. Water was moving. Flowing. Pooling. Testing every defense your home has.
And if your drainage system wasn’t ready, that water was finding its way somewhere it shouldn’t.
At Mobile Up, we’ve responded to more emergency calls during heavy rain weeks than any other time of year. From Tacoma to Olympia, Lacey to Lakewood, we’ve seen what happens when drainage systems fail.
The good news? Most failures are preventable. And the signs show up long before the water does.
Let’s talk about what to look for.
What Happens During Extended Heavy Rain
First, let’s understand what your drainage system is supposed to do.
Your gutters and downspouts collect rain from your entire roof and channel it away from your foundation.
Your grading (the slope of the ground) carries that water further away, toward the street or a drainage area.
Your underground drains (if you have them) move water from downspouts to the storm system or a dry well.
During normal rain, this all works fine. Water comes, water goes.
But during extended heavy rain, the system gets stressed. Gutters fill faster. Downspouts work at capacity. Ground saturates. And if there’s any weakness – any clog, any gap, any poor connection – that’s when water finds it.
And water always finds it.
Signs Your Drainage System Is Struggling
Water Pouring Over Gutter Edges
This is the most obvious sign. During heavy rain, look at your gutters. Is water spilling over the sides? That means the gutter is full – either from a clog or because it’s too small for the roof area.
Puddles Near the Foundation
After rain, walk around your house. Are there puddles within 3-4 feet of the foundation? That water needs to go somewhere else. If it’s not draining away, it’s soaking into the ground next to your basement or crawl space.
Downspouts Disconnected
Sometimes downspouts get knocked loose – by wind, by kids, by accident. If water is pouring out at the base of the wall instead of being carried away, you’ve got a problem.
Water Gushing From Downspout Joints
If your downspout has a leak at a seam or connection, that water is going exactly where you don’t want it: against the foundation.
Slow-Moving or Standing Water in Yard
If your yard has low spots where water pools and stays for days, that’s a grading issue. During heavy rain, those pools can grow and creep toward your house.
A Story from Tacoma: The Gutter That Looked Fine (But Wasn’t)
Last winter, we got a call from a homeowner in Tacoma named Marcus. He’d noticed water in his crawl space – not a flood, just dampness and a musty smell.
“I don’t understand,” he said. “My gutters are clean. I checked them in fall.”
We walked around his house during a light rain. Everything looked fine. Gutters clear. Downspouts attached. No obvious issues.
But when we climbed up for a closer look, we found the problem: the downspout outlet – the place where water exits the gutter into the vertical pipe – was partially blocked by a bird’s nest. Not completely clogged, but restricted.
During normal rain, enough water got through. But during heavy rain, water backed up, overflowed at the gutter seam, and ran straight down the wall into his crawl space.
We cleared the nest, checked the whole system, and made sure water flowed freely.
Marcus shook his head. “A bird’s nest. That’s all it was.”
“Sometimes the smallest things cause the biggest problems,” we said.
A month later, during a big storm, Marcus texted us: “Crawl space dry. Thank you for finding that nest.”
How to Check Your Drainage System (Before the Next Big Rain)
Gutters: The First Line of Defense
Start at the top. Grab binoculars and look at your gutters:
- Are they sagging anywhere? Gutters should slope slightly toward downspouts. If they’re sagging, water pools instead of flows.
- Any visible debris? Even if gutters look clean from below, there might be compacted gunk at the bottom.
- Are the downspout outlets clear? Look where the gutter meets the downspout. That opening can get blocked even when the rest of the gutter is clean.
Downspouts: The Hidden Danger
Downspouts are where most drainage problems hide:
- Are they securely attached? Check brackets and connections.
- Do they extend away from the house? The bottom of the downspout should have an extension carrying water at least 3-4 feet from the foundation.
- Are there any leaks at joints? During rain, watch for water spraying out of seams.
Grading: The Ground’s Job
After rain, walk your property:
- Does water flow away from the house? The ground should slope down away from your foundation.
- Any low spots where water pools? These can be filled or graded.
- Are your neighbors’ yards draining toward you? Sometimes the issue isn’t your property – it’s the land around it.
Underground Drains: The Mystery
If you have downspouts that disappear into the ground, they connect to underground pipes. These can:
- Get crushed by roots
- Clog with sediment
- Separate at joints
- Freeze and crack
Signs of trouble: water backing up out of the downspout, or soggy ground where the pipe is buried.
A Story from Olympia: The Underground Pipe That Wasn’t There
We got a call from a homeowner in Olympia named Diane. Her downspout drained into the ground – or so she thought. During heavy rain, water would bubble up out of the ground right next to her foundation.
We dug down to investigate and found the problem: the pipe had never been connected. The builder had just aimed the downspout into a hole and covered it with gravel. For years, all that water had been soaking directly into the ground next to her house.
Diane was shocked. “I’ve lived here for 15 years. I had no idea.”
We installed a proper drainage system that carried water 20 feet away to a dry well. Cost: about $1,800. But it solved a problem she didn’t even know she had.
“All those years,” she kept saying. “All those years of musty basement smells, and it was just… this.”
Emergency Fixes: What to Do When Water Is Coming In
Sometimes you don’t catch it in time. The rain is pounding, and water is finding its way in. Here’s what to do:
If Water Is Overflowing From Gutters:
Grab a bucket. Seriously. If one section is overflowing, that water needs to go somewhere. Put a bucket under the worst spot temporarily.
Clear the downspout. If you can safely reach it, try to clear the blockage. A plumber’s snake or even a long stick can sometimes dislodge clogs.
Create a temporary channel. Use a downspout extension or even a piece of pipe to carry overflowing water away from the foundation.
If Water Is Pooling Against the Foundation:
Dig a temporary trench. If you can safely divert water away with a shovel, do it. Even a small channel can buy you time.
Use sandbags. If you have them, place them to redirect water flow.
Move valuables. If water is entering your basement or crawl space, move anything valuable to higher ground.
If Water Is Entering the Basement:
Shut off electricity if water is near outlets or appliances.
Start pumping. If you have a sump pump, make sure it’s working. If not, a wet/dry vac can handle small amounts.
Call for help. Some situations need professionals. Don’t wait until it’s too late.
A Story from Lacey: The 3 AM Wake-Up Call
We got an emergency call at 3 a.m. from a family in Lacey. Torrential rain. Water pouring into their finished basement. They were frantic.
We arrived within an hour. The source? A downspout that had come completely detached from the underground drain. For hours, all the water from that side of the roof had been dumping directly against the foundation. The ground saturated, and water found its way through a tiny crack in the basement wall.
We couldn’t fix everything at 3 a.m., but we could stop the water. We reattached the downspout, redirected it temporarily away from the house, and helped them start cleanup.
The next day, we came back to assess the damage. About $4,000 in repairs – drywall, flooring, some framing.
The homeowner, still exhausted, just shook his head. “All because a pipe came loose.”
We installed proper downspout extensions that day, with brackets that won’t come loose. He checks them every fall now.
“Never again,” he said. “I’ll never ignore my downspouts again.”
Long-Term Solutions for Better Drainage
If you’ve had drainage issues, consider these upgrades:
Gutter Guards
Not perfect, but they reduce debris. Less debris means less clogging. Just know they need maintenance too.
Larger Downspouts
Standard downspouts are 2×3 inches. If you have a large roof or frequent heavy rain, consider upgrading to 3×4. More capacity, less overflow.
Downspout Extensions
The simple plastic extensions at hardware stores cost $5-10. They carry water 3-4 feet from your foundation. Install them on every downspout.
French Drains
If your yard has grading issues, a French drain (a gravel trench with a perforated pipe) can collect and redirect surface water.
Dry Wells
For downspouts, a dry well (a buried tank or pit filled with gravel) collects water and lets it soak slowly into the ground, away from your house.
Sump Pump
If your basement or crawl space is prone to water, a sump pump with a battery backup can save you from disaster during power outages.
A Story from Lakewood: The $40 Fix That Saved Thousands
We worked with a homeowner in Lakewood named Paul. His house was built in the 1980s, and the downspouts just dumped water right next to the foundation. For 30 years, that’s how it had been.
“I’ve never had a problem,” Paul said.
We explained: “The problem isn’t that you’ve had water. The problem is that water has been soaking into your foundation for 30 years. That adds up.”
We convinced him to let us install downspout extensions on all four corners. Total cost: about $40 in materials, maybe an hour of labor.
A year later, Paul called us. His neighbor had water in their basement after a big storm. Paul? Dry.
“I tell everyone now,” he said. “Forty dollars. That’s all it took.”
The Mobile Up Approach to Drainage
At Mobile Up, we believe drainage is the most overlooked system in most homes. It’s out of sight, out of mind – until something goes wrong.
When we inspect drainage, we:
🛠️ Check gutters thoroughly – Not just visible debris, but slope, connections, and outlets
🛠️ Test downspouts – Run water, watch where it goes
🛠️ Inspect grading – Walk the property, look for low spots and poor slopes
🛠️ Check underground drains – When possible, with cameras if needed
🛠️ Give honest answers – What needs fixing now, what can wait, what’s an emergency
We’ve seen drainage problems in Tacoma that took years to discover. In Olympia where pipes were never connected. In Lacey where one loose downspout caused thousands in damage.
And we’ve learned that the best time to fix drainage is before the heavy rain starts.
The Bottom Line: Water Always Finds a Way
Here’s the truth about drainage:
Water is patient. It doesn’t get tired. It doesn’t give up. It just keeps looking for a way in.
Your job is to make sure the only way is away from your home.
That means clean gutters. Working downspouts. Good grading. No hidden clogs. No disconnected pipes.
Marcus in Tacoma learned this from a bird’s nest.
Diane in Olympia learned it from a pipe that was never connected.
That family in Lacey learned it at 3 a.m. in a flooded basement.
Paul in Lakewood learned it from a $40 fix that saved him thousands.
Which story will yours be?
At Mobile Up, we’re here to help you write the good one. The one where you check your system before the rain. The one where you sleep soundly during storms. The one where water stays where it belongs – outside, far away from everything you love.
Because that’s what neighbors do for neighbors.
Your Problem? DIY Tip 🛠️
Got another spring maintenance question? We’ve got more tips:
👉 When the Cold Came: What the December 2023 Freeze Taught Us About Frozen Pipes
👉 Paint Your House Like A Pro – Very Simple! – Let’s Mobile Up!
👉 Overwhelmed by Hardware Finishes? A Simple Guide to Picking What Works
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