Foundation Block Wall Installation
Purpose-built block wall foundations for new construction or additions, engineered for Spokane's soil conditions and frost depth.
Learn moreServing Spokane, WA and surrounding areas. (509) 418-9962
A leaning retaining wall or crumbling block wall only gets worse after each Spokane winter. We build and repair block walls with deep footings and proper drainage so they hold their shape for decades.
Concrete block wall construction in Spokane starts below ground - most projects begin with excavating and pouring a concrete footing deep enough to sit below the frost line, which can reach 18 to 24 inches in a hard Spokane winter. From there, blocks are stacked in mortar course by course, often with steel reinforcement threaded through the hollow cores. A straightforward garden or boundary wall up to 30 feet long can typically be completed in one to three days once materials are on site; larger retaining walls or foundation walls may take a week or more.
Many Spokane homeowners contact us because they already have a block wall that is leaning, cracking, or letting water through - not because they are starting from scratch. Whether you need a new wall or a repair, the process starts the same way: a site assessment to understand exactly what the ground, soil, and existing structure are doing. If the issue is more about soil movement and drainage than the wall itself, we can often address both in the same project alongside retaining wall construction work.
Concrete block walls are versatile - they can be left plain, stuccoed, painted, or faced with stone veneer. If you are trying to figure out which finish suits your property, we can walk you through the options during the estimate visit.
If you stand back and look at your retaining wall and it is no longer straight - if it curves or tilts toward you - the wall is under more pressure than it can handle. In Spokane, this often happens after a wet winter or spring thaw when saturated soil pushes against the back of the wall. A leaning wall will not fix itself and can fail suddenly, so getting a professional opinion sooner is much cheaper than waiting.
Small hairline cracks in mortar joints are normal as a wall ages, but cracks wider than a pencil, diagonal cracks crossing multiple blocks, or cracks that have visibly grown since you first noticed them are a different story. In Spokane's freeze-thaw climate, water gets into small cracks, freezes, expands, and makes them bigger every winter. If you can fit a coin into a crack, it is time to call someone.
If you notice water staining on the face of a block wall or puddles forming at its base after rain or snowmelt, the drainage behind the wall has likely failed. This is especially common in Spokane neighborhoods with clay-heavy soil, where water has nowhere to go. Left alone, that water pressure will eventually push the wall out of alignment.
Run your finger along the mortar joints of an older block wall. If the mortar is soft, sandy, or comes away easily, the wall has lost much of its structural integrity. In Spokane, walls built before the 1980s often used mortar mixes that were not designed for the region's wet winters and hard freezes, and they deteriorate faster than modern materials.
We build and repair concrete block walls for Spokane homeowners across a wide range of project types - from garden borders and privacy walls to retaining walls on steep South Hill lots to basement foundation wall repairs. Every new wall starts with a footing sized for the wall's height and your soil conditions, poured deep enough to clear Spokane's frost depth. Where reinforcement is required by the city or warranted by the wall's height and load, we thread steel rebar through the block cores and fill them with grout. Drainage behind retaining walls is built in as the wall rises - not added as an afterthought.
For projects where the scope extends beyond a single wall, we regularly combine block wall work with foundation block wall installation on the same property. We also handle projects that start as block wall repairs and expand to include drainage improvements, footing replacements, or new construction once we get a close look at the site. All work comes with a written estimate that breaks out labor, materials, permits, and any excavation separately so you know exactly what you are paying for before anything starts.
For homeowners on sloped lots who need to level a yard, prevent soil erosion, or create usable outdoor space on Spokane's hillier streets.
Garden borders, property boundary walls, and privacy screens - a practical option for homeowners who want structure and definition without a full retaining wall.
For existing walls where mortar has deteriorated, cracks have appeared, or drainage has failed - often the right answer before a full replacement is needed.
For basement and foundation walls showing water intrusion, cracked mortar, or shifted blocks - often coordinated with a broader foundation assessment.
Spokane averages around 100 frost days per year, and the ground can freeze 18 to 24 inches deep in a cold winter. Any footing poured above that depth is at risk of heaving - the frozen ground pushes it upward, which cracks and tilts the wall above it. This is one of the most common causes of retaining wall failure in Spokane, and it is almost entirely preventable with proper footing depth. Beyond frost, much of the Spokane area sits on or near basalt bedrock, and many neighborhoods have pockets of clay-heavy soil that holds water instead of draining it away. For retaining walls especially, drainage planning is not optional - it is the part of the job that keeps your wall standing after five wet springs.
A significant portion of Spokane's housing stock was built between the 1920s and 1960s, and many of those properties have original concrete block foundations or garden walls that are now showing their age. Homeowners in Spokane and Spokane Valley often discover that what looked like a simple crack repair involves failed drainage, a shifted footing, or mortar that has deteriorated well beyond what is visible from the surface. Getting a thorough site assessment before agreeing to a price is the best way to avoid mid-project surprises.
For Spokane permit requirements, the City of Spokane Development Services Center handles residential masonry permits. For structural guidance on reinforced masonry, the Portland Cement Association and the Mason Contractors Association of America set the industry standards we follow.
We reply within one business day. We will ask a few basic questions - roughly where the wall will go, how long or tall you are thinking, and whether it is a new wall or a repair. This helps us show up to your property prepared rather than seeing the site for the first time.
We visit your property to look at the slope, soil, equipment access, and any existing structures nearby. You get a written estimate that breaks out excavation, materials, labor, and permits separately - no verbal quotes, no vague ranges.
If your project requires a city permit - which is likely for any retaining wall over four feet tall - we handle the application through the City of Spokane before a shovel goes in the ground. Add a week or two for permit processing, and then we schedule your start date.
We excavate, pour the footing, and wait for it to cure before laying block. For retaining walls, gravel and drainage pipe go in behind the wall as it rises. When the last block is set, we clean up the site and coordinate any required city inspection before closing out the job.
Free written estimate. We handle permits and give you a fixed price before work starts.
(509) 418-9962We size and dig every footing to clear Spokane's 18-to-24-inch frost depth. That detail adds a small amount to the excavation cost and prevents the heaving and cracking that causes retaining walls to fail within a few years. It is not optional in this climate, and we never skip it.
Clay soils and spring snowmelt are a common combination in Spokane, and water pressure behind a retaining wall is one of the most common reasons walls fail here. We install gravel backfill and drainage pipe behind every retaining wall as it is built - not as a last step after the wall is finished.
Any retaining wall over four feet tall in Spokane requires a city permit and inspection. We pull the permit, coordinate the inspection, and make sure the work is signed off before we close the job. Your wall is fully documented and legally built - which matters if you ever sell or refinance.
We have worked on block walls across Spokane's neighborhoods - from hillside retaining walls on the South Hill to crumbling basement walls in older homes near downtown. We know the local soil conditions, the city's permit process, and what the housing stock in each part of the city typically looks like.
Every block wall project we take on starts with an honest site assessment, a written estimate with no hidden add-ons, and a permit pulled before work begins. When we are done, you have a wall that handles Spokane winters and stays exactly where we put it.
Purpose-built block wall foundations for new construction or additions, engineered for Spokane's soil conditions and frost depth.
Learn moreFull retaining wall builds for sloped lots, drainage problems, and yard leveling projects across the Spokane area.
Learn moreSpokane's building season fills up fast - reach out now to lock in your start date before the summer rush takes over the schedule.