Caldwell's older homes, especially those built between the 1920s and 1960s, sit on brick or block basements that were never designed for today's water table. The silty soil around downtown and the older neighborhoods holds moisture like a sponge, and when the canals run full each spring, that moisture finds every crack and seam in your foundation.
We're Boise Waterproofing, and we've spent years working on Caldwell's particular mix of aging brick basements, block walls, and the slow drainage that comes with them. If you're near the College of Idaho or over by Caldwell High, you've probably seen the white powdery efflorescence on basement walls that tells you water is moving through the masonry. We fix that.
Waterproofing Us in Caldwell (83605)
Caldwell's housing stock is older than much of the Boise metro, and that changes how we approach every job. The brick and block basements common in the 83605 ZIP code were often built with minimal exterior waterproofing, just a coat of parging or a thin membrane that has long since failed. The soil here is silty, which means it drains slowly and holds water against the foundation long after a storm. When you add the irrigation season and the high water table that comes with it, you get hydrostatic pressure pushing water through mortar joints and hairline cracks. We see a lot of bowing block walls too, especially on older homes where the original drain tile has clogged with silt and roots. Our team knows when simple crack sealing with epoxy or polyurethane injection will solve the problem and when the real fix is an interior drain tile system that relieves pressure before it reaches the wall. We've worked on homes near the Caldwell Train Depot and along the older streets off Cleveland Boulevard, and we understand the tight access and mature landscaping that can make exterior excavation a last resort.
We've been serving Caldwell and the surrounding Boise area for years, and we've learned that no two basements here are the same. Some need a full interior perimeter drain with a new sump basin and pump; others just need a vapor barrier and proper wall sealing. We'll tell you straight which one you're looking at.
Our services in Caldwell
- Basement Waterproofing in Caldwell · Complete basement waterproofing for Boise homes…
- Interior Drain Tile System in Caldwell · Interior perimeter drain tile installed beneath the slab edge…
- Exterior Basement Waterproofing in Caldwell · Exterior excavation down to the footing with membrane or dimple-board…
- Foundation Waterproofing in Caldwell · Waterproofing for brick, block, early poured and old stone foundations…
- Foundation Crack Repair in Caldwell · Epoxy and polyurethane injection for non-structural foundation cracks…
- Sump Pump Installation & Replacement in Caldwell · New sump pits, pump replacement and discharge line correction…
- Bowing Wall Repair in Caldwell · Carbon fiber straps, steel I-beams or wall anchors to stop and stabilize a…
- French Drain Installation in Caldwell · Exterior drains installed along the foundation wall that intercept groundwater…
- Drain Tile Repair & Replacement in Caldwell · Repair of collapsed, clogged or root-bound footing drains…
- Vapor Barrier Installation in Caldwell · Heavy-duty vapor barrier sheets installed across basement walls and slab to…
- Basement Wall Sealing in Caldwell · Surface preparation, efflorescence removal and penetrating or membrane sealers…
- Battery Backup Sump Pumps in Caldwell · Battery backup systems that keep pumping when a winter storm or summer outage…
- Free Basement Inspection in Caldwell · Complete basement and foundation moisture inspection: walls, floor, cracks…
- Basement Mold Remediation in Caldwell · Mold removal paired with the moisture fix that prevents its return…
- Window Well Drainage & Repair in Caldwell · Window well drains, liners and covers that stop wells from filling with…
- Egress Window Installation in Caldwell · Egress windows for finished basements: cut, framed…
How a Job Works in Caldwell
Step 1: You call us at (208) 314-5276 or fill out our contact form, and we schedule a free basement inspection. We'll walk your basement and the exterior grade, check for efflorescence, test for moisture, and look at how water is moving around your foundation. We'll also check your downspout extensions and grading, because sometimes the fix starts outside. You'll get a written estimate with options, not a sales pitch.
Step 2: Once you approve the scope, we pull any permits the City of Caldwell requires (structural repairs and egress window cuts usually need them, and we'll confirm with the building department). On the work day, our crew protects your floors and landscaping, then gets to work. If access is tight, like on some of the older lots near downtown, we'll plan the sequence to minimize disruption. Interior drain tile jobs usually take one to three days; exterior waterproofing takes longer. We keep you posted on progress.
Step 3: We clean up every day and do a final walkthrough with you. We test the sump pump, show you how the system works, and leave your basement broom-clean. We don't consider the job done until you're satisfied.
Pricing in Caldwell depends on the job. Foundation crack repair starts at $450, and most single-crack epoxy injections fall in that range. Interior drain tile starts at $50 per linear foot, so a typical 100-foot perimeter runs around $5,000, but that can vary with access and the condition of your existing floor. Exterior basement waterproofing starts at $95 per linear foot, and a full foundation waterproofing job starts at $3,500. Sump pump installation starts at $1,200, and battery backup systems start at $900. We also offer basement wall sealing from $1,500, vapor barrier installation from $3 per square foot, and French drain installation from $25 per linear foot. The biggest cost factors are the size of your basement, how easy it is to get equipment to the foundation, whether the walls are bowing, and how quickly you need us out. Call (208) 314-5276 for a free estimate.
