Septic Install & Repair in Southeast Michigan

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Rock Solid Excavation installs new septic systems, handles full replacements, and repairs systems that have started to fail. We set the tank, lay out the drain field, troubleshoot what's going wrong, and replace components — all coordinated with the required permitting and inspection. A septic system lives underground through every Michigan winter, so it has to be built right and set right. Freeze, thaw, repeat — built to take it.

What We Handle

Whether you're on a new build off the main line, replacing a system that's reached the end of its life, or chasing down a problem with an existing system, we cover the full scope of septic work.

Septic work is regulated for good reason — it has to protect groundwater and work for decades. We coordinate the required permitting and inspection, set the tank at the right depth and grade, and lay out the drain field so the system handles the load and drains properly in our soils. When you're replacing or repairing, we diagnose the actual problem first so you're not paying to fix the wrong thing.

How the Work Goes

A new install on a build needs to be planned with the rest of the site work. A full replacement means getting the failed system out and a sound one in with minimal mess. A repair starts with figuring out what's actually failing — a component, the tank, or the field — before anyone digs. John will walk the property, look at what you've got, and lay out the right path.

A septic system spends its whole life underground, working through every freeze and thaw, so where and how it's set matters as much as what goes in. The tank has to sit at the right depth, and the drain field has to be laid out for the soil it's draining into — our clay-heavy ground doesn't perc the way sandy soil does, so a field that's undersized or set wrong won't keep up. We account for that from the start, sizing and placing the system for the property it's serving. Done right, it handles years of Michigan winters without becoming the problem you're calling someone else to fix.

Installs, Replacements, and Repairs

It depends on what's failing. Sometimes it's a single component; sometimes the tank or drain field has reached the end of its life. We diagnose the actual problem first so you're not paying for a replacement when a repair would do, or patching a system that needs replacing.

Yes. Septic work requires permitting and inspection, and we coordinate that as part of the job so the system is installed to code and signed off properly.

Built for Michigan Ground

Yes. We install new systems off the main line, set the tank, and lay out the drain field, planned together with the rest of the site work so it all fits the property.

We're based in Fenton and serve Genesee, Oakland, Livingston, and Washtenaw County, including Flint, Grand Blanc, Linden, Holly, Hartland, Howell, Brighton, Milford, and the surrounding rural areas.

What that means for your project

Free on-site walk-through, written estimate, no pressure. Freeze, thaw, repeat — built to take it.