Foundation Maintenance Checklist: Safe Homeowner Tasks by Season

What foundation maintenance is

Foundation maintenance is routine care of the things around the foundation: the roof drainage, the ground, the plants and the water that reaches the soil. It is not repair. It does not touch the structure.

General information, not a diagnosis of your house. This checklist lists safe tasks. If you already see movement, use it alongside, not instead of, a licensed structural engineer’s evaluation.

The idea is simple. Foundations sit on soil. Soil changes with moisture. Clay soil swells when wet and shrinks when dry.

The Texas licensing agency’s bulletin calls expansive soils a very common cause of foundation problems and says proper surface drainage, plant choices, sprinkling practices and long-term maintenance are all important in minimizing swings in soil water content ⁶.

Maintenance also covers records. Dated photos and notes show whether a crack or gap is changing. Our foundation repair documentation page explains how to keep them.

How maintenance protects a foundation

Water reaches a foundation in three main ways. Rain runs off the roof and soaks in at the wall. Surface water runs toward the house over sloping ground.

And groundwater rises in wet seasons. Kansas State’s guide lists run-in from near the building, a high water table and flooding as the three general sources of water entry ¹.

A homeowner mostly controls the first two. Gutters and downspouts collect the roof water. Grading steers surface water. The DOE guide says downspouts should discharge at least 5 feet from the foundation when draining to daylight, and that gutters should slope toward the downspouts ².

Soil moisture is the other half. When clay dries, it shrinks and can pull away from the wall. NDSU’s extension note says shrinking soil can shift a structure, causing sticking doors and windows and drywall cracks, and that watering the soil evenly around the building during extended dry periods helps keep moisture steady ⁴.

Put those together. Move roof and surface water away. Avoid big swings between soaked and parched soil. Watch for change. Our grading around a foundation and downspout drainage pages go deeper on the first two.

Types of maintenance task, by area

Example: a seasonal checklist

A sample calendar built from the sources above. It is a starting point for any home. Your climate and soil may call for different timing.

Write each visit’s date and what you saw. After a few seasons the notes show patterns that a single look cannot.

Where to look, outside and inside

Outside, walk the full perimeter. Look at the ground at the wall, the downspout outlets, the gutters from the ground, the window wells and the sides of the house that get the most runoff.

Look for soil that has settled and now slopes toward the house. Kansas State notes that backfill next to a foundation frequently settles over time and can reverse the slope ¹.

Inside, look at where the foundation can be seen: the basement or crawl space walls, the floor edges and the garage slab. Look for new damp, staining or white mineral deposits. See our foundation efflorescence page for what the deposits mean.

Also look at the living space. Note doors or windows that start to stick, gaps at trim or corners, and floors that feel different. These are clues that something is changing. They are not a diagnosis.

Do not enter a crawl space with standing water, gas or electrical hazards. If you cannot get in safely, say so in your notes and ask a professional.

What maintenance gives you

Limits and trade-offs

Sources do not all agree, and that is fair. A Colorado Geological Survey publication from 1978 advised keeping grass, shrubs, flowers and sprinkler systems at least 5 feet from the foundation to limit soil wetting ⁵.

NDSU’s extension note advises watering the soil evenly around the whole building in extended dry periods, 1 to 2 feet from the wall ⁴. The two serve different goals in different soils and climates. One limits wetting. The other limits shrinkage.

The way through is to follow local guidance. Ask your county extension office or building department what works for your soil and climate. NRCS’s Web Soil Survey, which Virginia’s geology page points to, can help you learn the soil type ⁹.

Grading has limits too. The DOE guide notes that regrading later is a difficult and expensive process if water problems appear ³. A few inches of surface soil can fix a settled spot. Reshaping a whole lot is a job for a qualified professional and may be subject to local drainage rules.

Finally, a caution from Kansas State: in areas of high shrink-swell soil, do not fill and tightly compact cracks next to a basement wall when the soil is dry.

Soil often expands when rewetted, causing pressure that could crack or even collapse the wall ¹. If you see a gap, photograph it and ask a professional.

What maintenance costs, in drivers

We do not print prices. Most tasks cost time: walking the house, clearing gutters, photographing cracks. Small items include downspout extensions, splash blocks, a level, a straight board, a soaker hose and window well covers.

The bigger costs come from fixing what the checks find. The drivers are the size of the fault, access, how much soil or drainage work is involved, local rules and whether a professional is hired.

Kansas State warns that retrofitting a footing drain is costly and destructive to landscaping, which is a reason to keep up the simple controls first ¹.

Compare options in our cost guide and with the cost calculator. Do not use a national number as your price.

How to do a maintenance walk, step by step

A general order. Skip any step that is unsafe for you.

1. Start from the roof edge. From the ground, look for sagging, overflow stains or clogs in gutters. Clear debris safely.
2. Check each downspout outlet. It should discharge onto ground that slopes away, past the splash zone. Add an extension if water pools at the wall ².
3. Test the slope. Lay a 10-foot board from the wall outward, set a level on it and measure the drop ¹.
4. Top up low spots with soil. Add soil on the surface where settling has reversed the slope. Do not dig beside the foundation ¹.
5. Look at window wells. They should drain and be covered ¹.
6. Check plants and watering. Move thirsty plants back and avoid soaking the wall. Follow local guidance on watering in dry spells ⁴.
7. Photograph cracks. Take a wide shot and a close shot with a ruler for scale, and write the date.
8. Log the visit. Note what you saw and what you did. Use our elevation log to track floor levels.

The standing checklist

Print this list and keep it with your house papers.

• Gutters clear and sloping toward downspouts ².
• Downspouts discharging at least 5 feet from the wall, onto ground that slopes away ².
• Ground sloping away from the wall, with settled spots filled at the surface ¹.
• Window wells drained and covered ¹.
• No standing water or soggy ground at the wall after rain.
• Large trees and thirsty shrubs kept back from the building ⁵.
• Irrigation not soaking the wall; soil moisture kept steady ⁴.
• Sump pump and drain outlets working, if you have them ¹.
• Cracks, gaps and sticking doors photographed and dated.
• Any plumbing leak fixed quickly. See plumbing leaks and foundation damage.

Risks, and when to call a professional

The main risk of maintenance is false comfort. Clean gutters do not mean a foundation is sound. If a crack widens, a wall bows, or doors stick along with new cracks, maintenance is not enough.

A second risk is overcorrecting. Flooding the wall with a hose to “fix” a gap can add water and swell the soil. NDSU cautions against backfilling a shrinkage gap with soil, since wet soil expands and can push the wall hard enough to crack it ⁴. Make changes slowly and with local guidance.

A third risk is unsafe work. Do not climb on a roof, dig beside the foundation, jack or prop anything, or remove parts of the structure. Do not enter a crawl space or pit with standing water, gas or electrical hazards.

Call a licensed structural engineer for significant, widening or changing movement, bowing or displaced walls, sticking doors and windows with new cracks, separation at corners, or any doubt about safety. NPS guidance notes that cracks should be monitored over time to see whether they are active ⁷.

Codes and local rules that touch maintenance

Most maintenance needs no permit. Some changes do. Regrading a lot, adding drains or sending water to a street or a neighbor’s land can fall under local drainage rules. Ask your building or public works office first.

Codes set the baseline for new work.

The DOE Building America guide notes that the 2009, 2012 and 2015 editions of the IRC set a different standard for impervious surfaces, requiring a slope of 2 percent away from the foundation within 10 feet, and it says to install swales or drains if setbacks leave less than 10 feet ³.

Editions change, and states adopt and amend them. Ask your building department which edition applies.

The same guide notes that ENERGY STAR calls for permeable surfaces to slope away from the house at least 0.5 inch per foot for 10 feet ³. That is a program specification, not a local code.

Pumps and discharge may also be regulated. Do not discharge to a sewer or a neighbor without checking.

Sources compared on moisture and distances

Myths about foundation maintenance

Myth Watering the foundation fixes cracks.

Reality Steady moisture may help in some soils ⁴, but it does not repair a crack and can backfire if overdone. Follow local guidance.

Myth Sealing a crack stops the movement.

Reality Sealing may keep water out. It does not address why the crack formed.

Myth Clean gutters mean the foundation is safe.

Reality They reduce one water source. They do not prove the structure is sound.

Myth Add as much soil as you can against the wall.

Reality Add surface soil to restore slope. Do not dig, and do not bury siding or vents.

Myth Maintenance replaces an engineer.

Reality It manages water and records change. Diagnosis of cause needs a licensed structural engineer.

Regional factors that change the checklist

Deciding between routine care and a professional

Use the crack identification tool to log what you see. Use the water intrusion tool if water enters the basement, and the engineer or contractor tool if you are unsure who to call.

Related terms

Foundation Drainage

Foundation drainage is the combination of surface grading, gutters and downspouts, subsurface drains and outlets that keeps rain, snowmelt and soil water from collecting against a foundation.

Seasonal Soil Moisture Changes

Seasonal soil moisture changes are the rise and fall in the water content of the ground through the year, driven by rain, snowmelt, heat, plants and drainage, and in clay soils they make the ground swell when wet and shrink when dry.

Tree Roots and Foundation Movement

Tree roots and foundation movement is the link between a tree drawing water out of the soil and the ground under a nearby foundation shrinking and settling, which happens mostly in clay soils that change volume with moisture.

Foundation Crack Width and Monitoring

Foundation crack width and monitoring is the practice of measuring how wide a crack is at a marked spot, and re-measuring the same way over time, so change can be seen and reported, instead of judging a crack by one look.

Sump Pump System

A sump pump system is a pit set below a basement floor, with a pump, a float switch and a discharge line, that collects water from drains and soil and pumps it away from the house.

Foundation Movement Monitoring

Foundation movement monitoring is the practice of measuring a house at set intervals, with crack gauges, floor-level readings or survey targets, to learn whether the structure is moving, in which direction, and whether the movement is changing.

Also referenced from: Grading Around a Foundation, Downspout Drainage Away From Foundations