How to stop water pooling against the house from sinking concrete
Cracked and sunken pavement slabs redirect heavy rain directly toward the foundation, threatening water damage before winter. Fixing or replacing these slabs is necessary to redirect runoff away from the house and prevent pooling against the building.
What the numbers show
Counted from the threads quoted below. How we count
- The most recent one is from October 2026.
- This comes up 13.8× more often in r/Landscaping than across the site as a whole.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1Installing channel drains or trench drains2 people mentionedDid this help you?
- 2Using sandbagsDid this help you?
- 3Foam injection or foam jacking to lift and re-grade the slabsDid this help you?
- 4Killing weeds to prevent further crackingDid this help you?
- 5tuckpointing and sealingDid this help you?
- 6using mud jacking to level concreteDid this help you?
- 7Feathering the slope further out through extensive diggingDid this help you?
- 8Directing runoff toward the street rather than neighbor structuresDid this help you?
- 9Installing a channel or French drain to divert water to the curbDid this help you?
- 10Doing manual labor-intensive grading without heavy equipmentDid this help you?
- 11digging French drainsDid this help you?
- 12setting up a sump pump to pump water away from the houseDid this help you?
- 13shutting off the main water supply to check for a leaking lineDid this help you?
- 14making the downspout longer with extensionsDid this help you?
- 15using a flexible gutter downspout extensionDid this help you?
- 16buying 6 feet of corrugated piping and an adapterDid this help you?
- 17using a splash guardDid this help you?
- 18filling the low spot with dirtDid this help you?
- 19attaching 2x4 lumber to concrete using construction adhesive to create a makeshift damDid this help you?
- 20using rubber water barriers normally used under shower doorsDid this help you?
- 21using temporary sandbagsDid this help you?
- 22cutting the concrete and installing a French drain systemDid this help you?
- 23pouring a small concrete curb using repair mortarDid this help you?
- 24Applying backer rod and sealant in gapsDid this help you?
- 25re-configuring guttering to eliminate downspouts on that sideDid this help you?
- 26using a downspout extensionDid this help you?
- 27carefully excavating and building the grade to form a straight slope to the streetDid this help you?
- 28installing a buried water collector and sumpDid this help you?
- 29Extending the drain away from the house so it drains downhill past the A/C units.Did this help you?
- 30Digging a trenchDid this help you?
- 31Using a splash blockDid this help you?
- 32Installing a french drain with a PVC collector pipeDid this help you?
- 33Attaching a tube to the condensate pipesDid this help you?
- 34Installing a French drain along the perimeter of the garden bedDid this help you?
- 35Using an outflow splash block or river rock pileDid this help you?
- 36Adding water-loving plantsDid this help you?
- 37Extending the downspout out into the grassDid this help you?
- 38re-grading away from the foundationDid this help you?
- 39making a swaleDid this help you?
- 40installing French drains and a basement pumpDid this help you?
- 41hiring landscaping companies for drainage evaluations and estimatesDid this help you?
- 42planting native bushesDid this help you?
- 43installing a water featureDid this help you?
- 44putting down decorative gravelDid this help you?
- 45using flower pots instead of ground plantingDid this help you?
- 46Hiring a landscape drainage contractor for regrading, swales, catch basins, or French drainsDid this help you?
- 47Running a camera through the existing builder drain pipe to check for clogsDid this help you?
- 48Jetting the clogged drain clean with waterDid this help you?
- 49Talking with the neighbor to coordinate fixes and potentially split costsDid this help you?
- 50building a slightly raised curb or barrier along the edge of the patioDid this help you?
- 51using construction adhesive and polyurethane caulk to seal bricks or edging to the slabDid this help you?
- 52backfilling the area by the house to be angled awayDid this help you?
- 53installing a dry well or running a drain under the slabDid this help you?
- 54using saw cuts or placing medium-sized boulders to redirect waterDid this help you?
- 55Grinding down the concrete bulge with a masonry bladeDid this help you?
- 56Raising the pads and adding dirt underneath to fix the tiltDid this help you?
- 57Running a bead of polyurethane sealant along the seam and setting bricks on topDid this help you?
- 58Building a drain in the flower bed and leading it under the cementDid this help you?
- 59Using plastic or flexible gutter extensions to reach the grassDid this help you?
- 60Adding an extra brick or block behind the downspoutDid this help you?
- 61Digging up and repairing or cleaning out the corrugated underground drain pipeDid this help you?
- 62Installing an underground drainage system with PVC pipe and a pop-up emitterDid this help you?
- 63Installing a catch basin or grate to collect water and tie it into a solid pipe running downhillDid this help you?
- 64Adding stones next to the houseDid this help you?
- 65Installing a French drainDid this help you?
- 66Checking for downspoutsDid this help you?
- 67Planning to take more pictures to assess the situationDid this help you?
- 68Tying gutters into a drain line leading to the curbDid this help you?
- 69Installing a drain line with a flush grate connected to a T-junctionDid this help you?
- 70Regrading topography or constructing a drywell/french drainDid this help you?
- 71Replacing impermeable pavers with gravel or permeable materialsDid this help you?
- 72Adding soil and regrading the bedDid this help you?
- 73Using temporary or flat downspout extensions across the sidewalk during rainDid this help you?
- 74Burying a drain pipe and pop-up emitter in the yardDid this help you?
- 75redirecting downspouts further away using extensions or perpendicular placementDid this help you?
- 76filling the area with dirt to improve gradingDid this help you?
- 77installing a drain to the street or French drains connected to pipesDid this help you?
- 78hiring a landscaper to evaluate and fix drainage optionsDid this help you?
- 79Installing drywells or retention pondsDid this help you?
- 80Wrapping downspouts to empty into the drivewayDid this help you?
- 81Digging a drainage pit and french drains leading to itDid this help you?
- 82Using a french drain with a sump basin and pump to push water out to the streetDid this help you?
- 83Re-grading the yardDid this help you?
- 84Planting deep-rooted ornamental native grasses to help soil absorb waterDid this help you?
- 85Using downspout elbows and straight segments to route water around roof edgesDid this help you?
- 86Installing and replacing sump pumps and French drainsDid this help you?
- 87Hiring contractors to remove mold and replace subfloors and floor joistsDid this help you?
- 88Researching and attempting to encapsulate crawl spaces independentlyDid this help you?
- 89Consulting structural engineersDid this help you?
- 90Dig down and add river rocks to turn the runoff path into a dry creek bedDid this help you?
- 91Plant native water-loving vegetation along the edges to slow water velocity and retain soilDid this help you?
- 92Use machinery to change channelized flow into sheet flow and divert it away from the foundationDid this help you?
- 93Install gabion check dams along contour lines up the slope to reduce runoff speedDid this help you?
- 94Widen the swale and make it shallowerDid this help you?
- 95Hire a professional drainage landscaperDid this help you?
- 96Dig a shallow trench and fill it with gravelDid this help you?
- 97Put a railroad tie at the bottom of the slopeDid this help you?
- 98Getting an estimate for a French drainDid this help you?
- 99Searching for water-tolerant plants or trees that soak up excess waterDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“Hi y'all! I am wondering how I would properly drain the pooling that happens around my house during heavy rain.”source ↗
“My house seems to sit lower than the street itself and as a result there is water pooling around lower spots of my yard.”source ↗
“We have a few low spots along a fence where water tends to pool and stagnate due to the high clay content here in Northern VA.”source ↗
“I've received an estimate for a French drain but due to the size of the back yard it will end up running about $7k.”source ↗
“Curious whether there are any plants or trees that are not only water tolerant and would enjoy being in that location but would also soak up the excess water.”source ↗
“I have a bowl shaped yard and I had to have drywells installed to deal with it.”source ↗
“Bought a house that has a ditch from runoff and it runs past the house and is starting to move dirt and show more of the slab at the corner of the house”source ↗
“I just bought the house a little bit ago and knew there was some water erosion happening on the side by this cobblestone walkway, but I wasn't sure of the source.”source ↗
“At some point, the side closest to my house started eroding and has sunk ~4" in some areas where the walkway meets the foundation. So now when the walkway fills up with rain the only place it has to escape is where the cobblestone meets my foundation.”source ↗
“As you can see in the picture, it's eroded the soil under my foundation on that walkway wall side.”source ↗
“I need to create a slightly raised, watertight barrier along the edge of my concrete patio to fix a the drainage issue.”source ↗
“Note: Due to excess concrete bulged out under the original forms, I cannot dig deeper that about 3" along the inner edge.”source ↗
“Looking for recommendations on bricks, landscape edging, adhesives, or masonry sealants that will hold up and prevent water from leaking in.”source ↗
“Looking to redo my patio and establish proper grading around my house and attached garage. Do I need two slopes to direct water from my house and garage?”source ↗
“I’ve been having some issues with water pooling right next to our garden beds during heavy rain.”source ↗
“As you might expect it creates a bit of a mess by dragging a bunch of debris onto the sidewalk.”source ↗
“I have terrible grading on these 2 sides and every heavy storm leaves puddles against the walls.”source ↗
“Contacted probably 5-10 companies and only heard back and got a quote from 1.”source ↗
“We are having some issues with the backyard and likely need a buried water collector and sump to send water out to the front street.”source ↗
“In the front flower bed, there is this downspout, and we get so much water that it pools up and eventually drains through the front lawn to the road.”source ↗
“I have a gutter that kinda just dumps water right into the front yard.”source ↗
“We had this issue when the houses were first built and the builder put some kind of drain pipe that seemed to resolve the issue. But now we are having flooding which blocks us from accessing the backyard and is causing our sump pump in the basement to turn on. What sort of contractor or landscaper can remediate this issue for us? TIA”source ↗
“Any suggestions on how to divert the water away from the base of this shed?”source ↗
“I just had new gutters installed and I'm not totally happy with this downspout.”source ↗
“The old downspout went directly into the corrugated black plastic pipe which always backed up and the edge blocks around the rock bed acted like a dam and held water next to the house.”source ↗
“Well, now the water appears to just be pooling under the splash block and making its way back to the foundation.”source ↗
“I’m at a bit of a loss now.”source ↗
“When checking under the house, we saw that there was a lot of pooled water and the sump pumps were not working properly.”source ↗
“Unfortunately, the problems persisted, with mold starting to grow inside a pantry closet and in the subfloor.”source ↗
“Anyway, it rained maybe an inch or two last night and we came to check on the house. This is what we’re seeing, inches of water that appears to be below the water table. We’re at a complete loss. We have struggled to find anyone in the area who deals with water issues and are increasingly stressed that there isn’t a solution.”source ↗
“Water from roof dumps to a low bed near foundation. This area including the sidewalk has a slight negative grade towards the house.”source ↗
“The main issue being the rain that falls in the middle of this U shape. There is nothing to collect the water, it just flows back toward the house and into the crawl space making it really damp and holds moisture.”source ↗
“The water flows in near the inner corner gutter between the gutter and the crawl space vent.”source ↗
“That U-shape is a nightmare, water just funnels right into the corner with nowhere to go.”source ↗
“New patio was just poured. How should this flower bed between the house and the new patio be built up to prevent water from draining toward the foundation or underneath the patio?”source ↗
“We had some basement flooding after a week of record rain and one night of remarkably heavy rain, and a big part of the problem was that water was pooling in our backyard and draining to the street very slowly.”source ↗
“The seller actually disclosed to us that it had flooded during record rains a decade ago, and they had installed a backup sump pump as a result.”source ↗
“water coming out of the downspout is pooling right where it exits. Initially, the water only accumulated in that one spot around the sprinkler head. However, it has now expanded and pools all the way down the right-hand side, sitting right against home.”source ↗
“The downspouts are the issure, you need to redirect water further away.”source ↗
“How can I build a watertight edging to divert patio runoff away from my house and flower bed?”source ↗
“I need to create a slightly raised, watertight barrier along the edge of my concrete patio to fix a the drainage issue.”source ↗
“Looking for recommendations on bricks, landscape edging, adhesives, or masonry sealants that will hold up and prevent water from leaking in.”source ↗
“Completely wrong water management strategy. It is a moat. This is a project that needs immediate correction.”source ↗
“Yes, you don't want standing water like that at your foundation.”source ↗
“How should this flower bed between the house and the new patio be built up to prevent water from draining toward the foundation or underneath the patio?”source ↗
“I want to replace at least 3 of these 12'×9 slabs of pavement, preferably before the winter. Im concerned about water going toward the house .”source ↗
“Over the weekend we had our first rain event, and ai noticed the gutters were dripping with water. The water would normally feed down from the tiles onto the patio - but there does not seem to be a way for the water to drain from the gutter in the patio area into any sort of drain.”source ↗
“During heavy rains, water pools against my foundation, the building on the left.”source ↗
“The siding on the house go 3in. lower than the adjacent pavement top. For an inch drop over the 4ft. run away from the house, this I show much I had to dig. If I need to feather it further out, that will be a lot of digging? Should it run towards the street or the fence next to neighbors garage?”source ↗
“Consequently, I’m experiencing drainage issues, as water is accumulating in this corner.”source ↗
“Unfortunately, jacking up the foundation isn’t a viable option at the moment, and regrading isn’t feasible because the area is concrete.”source ↗
“No downspouts at all 🧐I can take more pictures this afternoon”source ↗
“I need to make a diversion for this upper gutter. The water pours directly into a really fun hole at the foundation. I need to get around the edge of the lower roof and back to the side of the house so I can strap it down.”source ↗
“When we get any sort of rain, water pools here from the driveway slope.”source ↗
“There is a sizable gap between the concrete by the steps and the foundation.”source ↗
“With heavy rain, the basement walls started to slightly sweat in the area the water pools in.”source ↗
“Our sump pump (Newer to me house) kicks on and drains right next to the foundation (Pic 2). Then puddles right there.”source ↗
Where this came up
People with this problem also raised
- 6How to stop weeds and clogs around drainage basins
- 2Why does water pool in flat bottomed sinks?
- 15How to stop roof water from overflowing and rotting the window sill
- 16How to fix a dipping flat roof that collects standing water
- 5How to stop water from splashing out of sliding glass shower doors
- 27Water pooling around sprinkler head