Out past city sewer, on the acreages and rural lots that cover most of the Black Hills, your septic system is the whole show. When it works, you never think about it. When it fails, it takes over your week. Digger Construction LLC installs, inspects, and repairs septic systems across Rapid City and the Black Hills, and we do it to code so it passes inspection and keeps working for years. Owner Joel Williams handles septic projects start to finish, from permits to backfill, and customers are consistently surprised how fast and how clean the job goes.
A few signs point to a system at the end of its life: standing water or lush green grass over the drain field, slow drains and backups throughout the house, sewage odors in the yard, or a system that simply was not installed correctly the first time. We had a customer whose lines had been replaced a few years earlier by someone else and were not done properly. Joel made sure their full replacement was up to code, kept them informed every step of the way, and got it right. If your system was patched together or undersized, replacing it correctly now saves you from chasing failures later.
Septic is one area where cutting corners shows up fast, usually as a failed inspection or a backed-up field a year later. We size the system to your household and soil, set the tank and lines at the right depth and slope, and build it to meet code so it passes inspection and performs. The Black Hills throws real variables at a septic install: rocky and granite ground in the higher elevations, heavy clay in the basin that drains slowly, and frost depth that demands proper burial. We plan around the ground you actually have.
A septic system that is too small for the household, or built in soil that does not percolate well, is a system that fails early. That is why a proper septic project starts with evaluating your soil and sizing the system to the number of bedrooms and the expected load. In parts of the Black Hills the soil drains slowly or sits over rock, which changes the design of the drain field. We do this homework up front so the system you pay for actually handles your household for the long haul instead of backing up in a year or two.
The drain field is the part of a septic system people understand the least and damage the most. Parking or driving over it compacts the soil and crushes the lines. Planting trees too close lets roots invade. Routing roof runoff or a sump pump toward it floods the field and shortens its life. When we install a system we will show you where the field is and how to keep it healthy, because a little care there adds years to the whole system and saves you a major repair. We will also point you to a sensible pumping schedule for your tank size and household, since regular pumping is the cheapest insurance there is against a failed field.
Septic pricing depends on the system size, the soil and how well it percolates, the amount of rock to dig through, the depth required, and permit and inspection fees in your county. We give a free same-day estimate so you know the number before any work begins. Customers tell us we are fairly priced and honest about what the job actually needs, which matters on a project this size.
It depends on the system size, soil, and rock, but our customers are often surprised how fast we move. We handle everything from permits to backfill and keep downtime to a minimum.
Yes. We pull the required permits and build the system to code so it passes inspection.
Yes. We regularly correct and replace systems that were undersized or installed improperly, and we bring them up to code.
Yes. We inspect systems for real estate transactions and for routine peace of mind.
Every site is different. Call or text (605) 389-0863 for a free same-day estimate based on your property.