The Problem You Can't See
Most concrete problems start underground. Water that doesn't drain properly erodes the base material under your slab, creating voids. Those voids lead to cracking, settling, and uneven surfaces. In Northeast Tennessee, where rain is frequent and clay soil holds water, drainage planning isn't optional — it's essential.
What Happens Without Proper Drainage
Base Erosion
Water flowing under or alongside a slab washes away the compacted base material, leaving voids that cause settling and cracking.
Foundation Damage
A patio that slopes toward your house directs water against your foundation. Over time, this can lead to moisture problems in crawl spaces and basements.
Standing Water
Low spots in a driveway or patio collect rainwater, creating puddles that freeze in winter and create safety hazards.
Soil Swelling
Clay soil (common in the Tri-Cities) swells when wet and shrinks when dry. Without proper drainage, this constant cycle puts pressure on your slab from below.
How K&H Handles Drainage
Every K&H project starts with a site evaluation that includes drainage assessment. We look at the lot grade, existing drainage patterns, soil type, and where water currently flows during rain. Then we grade the site so water moves away from your home and slab.
For driveways, that means proper crown or cross-slope. For patios, it means grading away from the house. For house pads, it means ensuring water doesn't pool around the foundation. The drainage work is included in your all-in quote — it's not a separate line item.
Questions to Ask Any Contractor
Before hiring anyone for a concrete pour, ask how they plan to handle drainage. If they don't mention grading, slope, or water management, that's a concern. Here's what to ask:
- • How will the slab be graded for water runoff?
- • Where will water go during heavy rain?
- • What base material will you use, and how will it be compacted?
- • Have you evaluated the soil type on my lot?
Drainage Is Built Into Every K&H Quote
We evaluate your site's drainage as part of every free estimate.
Get a Free Estimate