An Annual Home Drainage Checkup
A once-a-year walk of your home's whole water path — gutters to foundation — ideally in the rain, to catch drainage problems while they are still cheap to fix.
Seasonal Maintenance
Preparing Your Home's Drainage for Storm Season
The short answer
Ahead of hurricane or heavy-storm season, the drainage checklist is clear gutters and downspouts, confirm discharge carries water well away, check grading and drains, and remove anything that could clog an outlet. It is the water half of storm prep.
Short answer: getting your home ready for storm season is mostly about the water. Clear the gutters and downspouts so rain can actually leave the roof, confirm that discharge carries it well away from the foundation, check that the ground still slopes away and yard drains are open, and pull out anything that could clog an outlet when the volume peaks. That checklist is the drainage half of storm prep — and it is the half that protects your foundation.
Working at height is dangerous. Ladder and roof work risks serious falls, worse on wet or icy surfaces; if you lack safe, stable access, hire a professional.
Why storms are a drainage problem
A big storm is really a sudden delivery of a lot of water in a short time. Your roof concentrates it, your gutters are supposed to catch and route it, and your grading and drains are supposed to carry it away. When any link in that chain is blocked, the water finds its own path — and that path usually runs straight down the foundation wall.
The trouble compounds because storms saturate the ground. Soil that could normally absorb some runoff is already full, so water pools where it lands. That is why a clogged gutter that merely annoys you in a light spring shower can send sheets of water against the house in a real downpour. Preparing ahead is about making sure every link in the chain is open before the demand spikes.
The storm-prep drainage checklist
Work through the whole water path, roof to yard. None of this needs to happen in a single afternoon, but it should all be done before the season, not during a warning.
1. Clear gutters and downspouts
This is the foundation of everything else. A gutter full of leaves or a downspout plugged at the elbow will overflow no matter how good the rest of your drainage is. If you are unsure how recently they were done, our guide on how often to clean gutters helps you judge, and a pre-season clearing is a safe default. Flush downspouts with a hose and confirm water runs freely out the bottom.
2. Confirm discharge runs well away
Follow the water out of each downspout. It should land on ground that slopes away and keep moving, ideally several feet from the wall. Add or reseat extensions and splash blocks that have drifted out of place. A downspout that dumps right at the foundation is only relocating the problem to the worst possible spot.
3. Check grading and drains
Walk the perimeter and look at how the ground meets the house. You want it falling away from the foundation, not toward it. Then check any yard drains, channel grates, or area drains — clear leaves and sediment so they can actually take water during the storm.
4. Remove clog risks
Storms move loose material around. Rake up leaf piles near outlets, clear debris off drain grates, and stow lightweight yard items that wind and water could float into a drain. The goal is that when rain peaks, nothing new arrives to block an outlet.
Our broader summer storm preparation guide covers the non-water parts of readiness; treat this checklist as the drainage companion to it.
Prep ahead of the season, not in the hours before a named storm arrives. Rising wind and wet surfaces turn a routine ladder task into a genuinely dangerous one, and a saturated yard is the worst time to discover a grading problem. If a storm is already close, favor ground-level checks and postpone anything that requires height.
Pre-storm drainage checklist
| Item | What to confirm | Why it matters |
|---|---|---|
| Gutters | Clear of leaves and debris | Overflow drives water to the foundation |
| Downspouts | Flow freely, no clogs at elbows | A blocked outlet backs up the whole run |
| Discharge point | Water carried well away from wall | Keeps saturated soil away from foundation |
| Grading | Ground slopes away from house | Directs surface water outward, not inward |
| Yard / area drains | Grates clear, drains open | Handles ground-level runoff during peak |
| Loose debris | Removed from near outlets | Prevents new clogs mid-storm |
Common mistakes
- Prepping only when a storm is named. Scrambling up a ladder in rising wind is exactly what pre-season prep is meant to avoid. Do the work early.
- Cleaning gutters but ignoring where water goes. A spotless gutter that discharges at the foundation still floods the wall. The discharge point matters as much as the gutter.
- Assuming grading never changes. Soil settles and mulch shifts over the years, quietly flattening or reversing the slope. A quick annual look catches it.
- Forgetting yard and area drains. People focus on the roof and overlook ground-level drains that clog with sediment and leaves, then back up in the storm.
- Leaving loose material near outlets. Leaf piles and lightweight items become clog material the moment water starts moving. Clear them first.
- Skipping the post-storm pass. New debris and any fresh damage are easiest to catch right after the rain — see our notes on gutter cleaning after storms.
The bottom line
Storm-season readiness is, for the most part, water management. If the roof can shed rain into clear gutters, the downspouts carry it well away, the ground slopes it outward, and the drains stay open, you have handled the drainage half of storm prep. None of it guarantees a dry basement in an extreme event, but few controllable steps do more to keep storm water moving away from your home instead of into it.
maintenancestorm seasonpreparationdrainage
FAQ
Frequently asked questions
What is the single most important drainage prep before a storm?
Clear gutters and downspouts. A gutter packed with debris overflows in heavy rain, dumping water right against the foundation exactly when the ground is already saturated. Everything else in storm-drainage prep builds on that clear path.
How far from the house should downspouts discharge?
There is no universal number, but the general aim is to carry water several feet away from the foundation onto ground that slopes away. Extensions, splash blocks, or buried drain lines all help. The key is that water leaves and keeps leaving, rather than pooling at the base of the wall.
When should I do storm-season drainage prep?
Before the season starts, not when a storm is already named and approaching. Prepping ahead means you are not on a ladder in rising wind, and you have time to fix anything you find. A quick recheck as a specific storm nears is reasonable, weather permitting.
Do I need to check grading every year?
A quick look is worth it. Soil settles, mulch shifts, and landscaping changes can flatten or reverse the slope around a foundation over time. You are checking that the ground still falls away from the house rather than back toward it.
What clogs storm drains and outlets most often?
Leaves and needles at gutter outlets, sediment and debris in yard drains and channel grates, and anything loose in the yard that water can float into a drain. Clearing these before a storm keeps outlets open when the volume peaks.
Should I clean gutters again right after a storm?
Often yes, especially if the storm brought down leaves, twigs, or shingle grit. A post-storm pass catches new debris and lets you spot any damage while it is fresh, before the next round of rain arrives.
Can drainage prep really prevent basement or foundation water?
It cannot guarantee a dry basement, but managing where roof and surface water go is one of the most effective, controllable steps a homeowner has. Keeping water moving away from the foundation removes a common cause of seepage and settlement.
Keep reading
Related articles
How to Clean Underground Downspout Drains
How to clean an underground downspout drain: flush from the inlet, clear the outlet, run a drain snake, and recognize when a buried line needs repair instead.
Summer Storm Preparation for Your Home
The drainage side of summer storm prep — clearing gutters and downspouts, checking discharge and grading, and securing debris so heavy rain moves away from the house.