Guides

Plain-English background to the numbers behind the calculators — from what foundation repair and basement waterproofing cost to how many piers a foundation needs, French drain cost per foot, and how the ROI & financing math works.

How much does foundation repair cost?What drives a foundation repair bill, how to estimate it from your own quotes line by line, and when a crack means it is time to call a structural engineer.Piering & underpinning: how many piers does a foundation need?How piers stabilize a settling foundation, how to count them from the affected length and spacing, and how to turn that count into a cost from your price.Foundation crack repair: epoxy vs polyurethane, and cost per footWhat foundation cracks mean, when epoxy injection beats polyurethane and vice versa, and how to estimate the job per linear foot from your own contractor price.Bowing basement walls: carbon-fiber straps vs wall anchorsWhy basement walls bow inward, how carbon-fiber straps and wall anchors each fix it, and how to count and cost the units from the wall length and spacing.How much does basement waterproofing cost?Interior vs exterior waterproofing, why the job is priced per linear foot of wall, and how to estimate your basement from the perimeter and your own rate.Interior drain tile vs exterior waterproofing: which, and what it costsA side-by-side of interior drain tile and exterior excavation waterproofing — what each fixes, how disruptive each is, and how to estimate both.Egress window cost & code basicsWhy a basement bedroom needs an egress window, the line items that make up the cost, and the code and permit basics to confirm with your building department.Crawl space encapsulation cost & what is includedWhat crawl space encapsulation includes, how the cost is driven by liner area (floor plus walls), and how to estimate a job from your per-square-foot price.Vapor barrier material & crawl-space dehumidifier sizingHow to count vapor-barrier rolls from area and overlap, how crawl-space dehumidifiers are sized by area, and how to estimate both from your own prices.French drain cost per foot & how it worksHow a French drain moves water away from a foundation, how to estimate it per linear foot, and how to figure the gravel cubic yards from the trench dimensions.Sump pump cost, sizing & battery backupWhat goes into a sump pump installation, how the cost breaks into line items, and why a battery backup and the right capacity matter for keeping a basement dry.Concrete leveling: mudjacking vs polyjacking costHow mudjacking and polyjacking lift a sunken concrete slab, the trade-offs between them, and how to estimate either from the area and your price.Concrete slab & footing cost: figuring cubic yardsHow to turn slab and footing dimensions into cubic yards of concrete with the /27 rule, and how to estimate the cost from your per-cubic-yard and labor prices.Budgeting foundation & basement repairs (and the financing math)How to build a below-grade repair budget: allocate by category, add a contingency, normalize cost per square foot, and run illustrative loan and ROI math.