Find the right guide
21 engineer-written guides published across 9 topics, with 75 more on the way. Each one gives a verdict, the measurements behind it, and an honest cost range. New here? Start with our independent answers on foundation, crawl space and damp problems.
Foundation Cracks
Read a crack's width, direction and pattern, and see what each repair costs.
- Horizontal Crack in a Basement WallWhy horizontal cracks signal soil pressure, the measurements to take, and when to call an engineer.
- Crack in a Basement WallShrinkage or structural? Width, direction and offset checks for poured and block walls.
- Basement Wall Crack Leaking WaterWhy a wall crack lets water in, how to seal it, and when the crack is the bigger worry.
- Bowing Basement WallHow much inward bow is too much, what causes it, and the repair options compared.
- Types of Foundation Cracks (Photo Guide)Vertical, diagonal, horizontal and stair-step cracks, and what each pattern says about movement. Coming soon
- Crack in a Concrete Slab FoundationWhich slab cracks are normal curing shrinkage and which point to settlement or heave. Coming soon
- Hairline Foundation Cracks: When They're NormalWhy most hairline cracks are harmless, and the few signs that make one worth watching. Coming soon
- How to Monitor a Foundation CrackA simple crack log with marks, a gauge and dates, so you can tell if a crack is growing. Coming soon
- DIY Foundation Crack Repair (and Its Limits)Which cracks you can seal yourself, step by step, and where DIY repair should stop. Coming soon
- Foundation Cracks in New HomesWhy cracks appear in the first few years, what is normal, and how builder warranties treat them. Coming soon
- Foundation Crack Repair CostPrice ranges for sealing, injecting and structurally repairing cracks, and what drives them. Coming soon
- Bowing Basement Wall Repair CostWhat anchors, straps, braces and excavation cost for a bowing basement wall. Coming soon
- Cracks in New-Build Homes (NHBC Warranty)Normal new-build cracking, what the NHBC warranty covers, and how to report defects.UK Coming soon
Settling & Subsidence
Normal settling or ongoing movement? Clay soil, heave, tree roots and drought.
- House Settling Cracks: Normal vs Warning SignsHow to tell harmless settling cracks from ongoing movement, with width and pattern checks.
- Signs of Foundation ProblemsThe warning signs inside and outside the house, and which ones need an engineer soon. Coming soon
- How Long Does a House Take to Settle?What settling looks like in the first years, and why the timeline depends on your soil. Coming soon
- Sinking Foundation SignsSloping floors, sticking doors and gaps at trim: the signs of sinking, ranked by severity. Coming soon
- Expansive Clay Soil and FoundationsHow clay soil swells and shrinks with moisture, and how to protect a foundation built on it. Coming soon
- Foundation Heave ExplainedWhat heave is, how it differs from settlement, and how to tell which one cracked your house. Coming soon
- Tree Roots and Foundation DamageWhen tree roots really damage foundations, safe planting distances, and the risk of removal. Coming soon
- Can Drought Cause Foundation Problems?How drought shrinks clay soil and cracks foundations, and how to limit damage in dry spells. Coming soon
- Subsidence Cracks (BRE Categories 0–5)How engineers and insurers grade subsidence cracks from Category 0 to 5 under BRE Digest 251.UK Coming soon
Crawl Spaces
Humidity, mold, vapor barriers, encapsulation, and what each fix costs.
- Crawl Space Encapsulation: Is It Worth It?When sealing a crawl space pays off, when a vapor barrier alone is enough, and when it is a waste.
- Moisture in a Crawl SpaceWhere crawl space moisture comes from, how to measure it, and the fixes in order of cost.
- Flooded Crawl Space: What to Do NowFirst steps after water floods a crawl space, from safety and pumping to drying and mold checks.
- Crawl Space MoldWhy mold grows on crawl space joists, which kinds matter, and how to stop it coming back.
- Crawl Space Inspection: What Inspectors CheckWhat an inspector looks at under the house, common findings, and how to read the report.
- Crawl Space Encapsulation Cost per Square FootEncapsulation cost per square foot, broken down by liner, sealing, dehumidifier and drainage.
- Crawl Space Humidity LevelThe humidity range to aim for, how to measure it, and what to do when it runs high. Coming soon
- Crawl Space Vapor BarrierLiner thickness, overlaps and sealing explained, and how a barrier differs from encapsulation. Coming soon
- Crawl Space InsulationWhere to insulate a crawl space, which materials handle moisture, and what codes expect. Coming soon
- Vented vs Sealed Crawl SpaceHow vented and sealed crawl spaces handle moisture, and which design suits your climate. Coming soon
- Crawl Space Sump PumpWhen a crawl space needs a sump pump, how to size one, and where the discharge should go. Coming soon
- Crawl Space Support Jacks and PiersWhat support jacks and piers do, signs they are failing, and permanent versus temporary fixes. Coming soon
- Musty Smell from the Crawl SpaceWhat a musty smell from under the floor means, how to trace it, and how to get rid of it. Coming soon
- Crawl Space Repair CostWhat common crawl space repairs cost, from moisture fixes to joist and pier work. Coming soon
Basement Water
Leaks, seepage, sump pumps and drainage, with honest repair costs.
- Sump Pump Not Working: TroubleshootingStep-by-step checks for a sump pump that will not start, runs nonstop or fails to pump out.
- Basement Waterproofing Cost by SizeBasement waterproofing costs by method and basement size, for interior and exterior systems.
- French Drain Cost per FootFrench drain costs per linear foot, interior and exterior, and what affects the total.
- Why Is My Basement Leaking?The common entry points for basement water, from wall cracks to the cove joint, and how to find yours. Coming soon
- Interior vs Exterior Basement WaterproofingHow interior drains and exterior membranes work, what each fixes, and how costs compare. Coming soon
- Water Coming Up Through the Basement FloorWhy water rises through a basement floor, from hydrostatic pressure to a high water table. Coming soon
- How Long Do Sump Pumps Last?Typical sump pump lifespans, the signs of a failing pump, and when to replace it. Coming soon
- French Drain in a BasementHow an interior French drain collects water, when it is the right fix, and what installing one involves. Coming soon
- Efflorescence on Basement WallsWhat white powder on basement walls tells you about moisture, and how to remove and prevent it. Coming soon
- Basement Flooding: What to Do FirstWhat to do in the first hours of a basement flood, from power safety to drying and insurance. Coming soon
- Weeping Tile: Failure Signs and Replacement CostHow weeping tile works, signs it has clogged or collapsed, and typical replacement costs in CAD.CA Coming soon
- Basement Flooding Subsidy ProgramsHow municipal basement flooding subsidy programs work in Canada, what they cover, and how to apply.CA Coming soon
- Basement Leak Repair Cost (CAD)Basement leak repair costs in Canadian dollars, from crack injection to weeping tile.CA Coming soon
Damp & Mold
Black mold, humidity targets, condensation, damp, and mold removal costs.
- Black Mold in a BasementHow to identify black mold in a basement, why it grows there, and when to call a professional. Coming soon
- Is Basement Mold Dangerous?Who is most at risk from basement mold, which symptoms to watch, and how much is too much. Coming soon
- Basement Humidity LevelThe humidity range a basement should stay in, how to measure it, and how to bring it down. Coming soon
- Damp vs Condensation vs Rising Damp: How to TellA simple at-home test to tell condensation from rising or penetrating damp. Coming soon
- Rising Damp: Signs, Test and TreatmentHow to recognize genuine rising damp, test for it, and choose a treatment that works. Coming soon
- Penetrating DampHow rain gets through walls, the usual entry points, and how to stop penetrating damp. Coming soon
- Mold vs MildewHow mold and mildew differ in look, risk and removal, with a quick identification test. Coming soon
- How to Prevent Basement MoldThe humidity, drainage and ventilation steps that keep mold out of a basement for good. Coming soon
- Basement Mold Removal CostBasement mold removal costs by area and severity, and when doing it yourself is safe. Coming soon
- Damp Survey: What It Is and What It CostsWhat a damp survey checks, who should carry it out, what it costs, and how to read the results.UK Coming soon
Water Damage
Ceiling stains, wet floors, burst pipes, drying out, insurance and repair costs.
- Water Stain on the Ceiling: Find the SourceHow to trace a ceiling stain to the roof, plumbing or condensation before you repaint.
- Wood Floor Water DamageCupping, crowning and buckling explained, and which water-damaged wood floors can be saved.
- Water Damage on the CeilingHow to judge a water-damaged ceiling, when it is a safety risk, and what repair involves. Coming soon
- Water Damage Behind WallsSigns of hidden water damage behind walls, how to confirm it, and what opening the wall involves. Coming soon
- Burst Pipe: What to DoWhat to do the moment a pipe bursts, from shutting off the water to documenting the damage. Coming soon
- Does Homeowners Insurance Cover Water Damage?Which kinds of water damage home insurance usually covers, and the exclusions that catch people out. Coming soon
- How to Dry Out After Water DamageHow to dry walls, floors and cavities after a leak, and how long each material takes. Coming soon
- Ceiling Water Damage Repair CostCeiling repair costs after water damage, from stain sealing to full drywall replacement. Coming soon
Repair Methods
Piers, anchors, crack injection, underpinning and leveling compared, with costs.
- Pier and Beam Foundation: Complete GuideHow pier and beam foundations work, the problems they develop, and how they are repaired.
- Mudjacking vs PolyjackingHow mudjacking and polyjacking lift sunken slabs, compared on cost, weight and lifespan.
- Helical Piers vs Push PiersHow helical and push piers support a settling foundation, and which soils suit each. Coming soon
- Wall Anchors vs Carbon Fiber StrapsHow wall anchors and carbon fiber straps stabilize bowing walls, and when each one works. Coming soon
- Foundation Crack Injection: Epoxy vs PolyurethaneEpoxy versus polyurethane injection: what each seals, and which crack calls for which. Coming soon
- Underpinning ExplainedWhat underpinning does, the main methods, and the cases where it is genuinely needed. Coming soon
- Sistering Floor JoistsHow sistering strengthens sagging or damaged floor joists, step by step, and its limits. Coming soon
- House Leveling for Pier and Beam HomesHow shimming and leveling correct uneven floors in pier and beam homes, and how often it is needed. Coming soon
- Pier and Beam Foundation Repair CostTypical costs for shimming, leveling, and replacing piers and beams. Coming soon
- Mudjacking CostWhat mudjacking costs for driveways, patios and slabs, compared with polyjacking. Coming soon
- Restumping vs Reblocking vs Resin InjectionRestumping, reblocking and resin injection compared for Australian homes on stumps.AU Coming soon
- Underpinning Cost: Is It Needed? Alternatives and PricesWhether you really need underpinning, the cheaper alternatives, and typical UK prices in pounds.UK Coming soon
- Restumping Cost by StateRestumping costs by state, and what changes the price for timber, concrete and steel stumps.AU Coming soon
Floors, Walls & Doors
Sloping or bouncy floors, drywall cracks, sticking doors and repair costs.
- Sloping FloorsHow much floor slope is normal, how to measure it, and when it points to foundation movement. Coming soon
- Bouncy FloorsWhy floors feel bouncy, from joist span to damaged supports, and how each cause is fixed. Coming soon
- Drywall Cracks: Cosmetic or Structural?Which drywall cracks are cosmetic and which crack patterns point to foundation movement. Coming soon
- Sticking Doors and WindowsWhen sticking doors and windows mean foundation movement, and when humidity is to blame. Coming soon
- Stair-Step Cracks in BrickWhat stair-step cracks in brick mean, how to measure them, and when they need an engineer. Coming soon
- Cracks in the CeilingWhich ceiling cracks are harmless and which signal structural or water problems. Coming soon
- Sagging Floor Repair CostCosts to fix sagging floors, from adding support jacks to sistering joists. Coming soon
- Wall Cracks Explained (AS 2870 Categories)Wall cracks graded by the AS 2870 damage categories, from hairline to severe.AU Coming soon
Inspections & Buying
Inspections, quotes, and buying or selling a house with foundation issues.
- Should You Buy a House With Foundation Problems?When foundation problems are a reason to walk away, and when to negotiate a lower price instead.
- Structural Engineer vs Home InspectorWhat a structural engineer checks that a home inspector does not, and when you need each.
- Is Your Repair Quote Fair? (Line-Item Checklist)The line items a fair foundation repair quote should show, and the red flags worth questioning.
- Foundation Problems in a Rental: Tenant and LandlordWho is responsible for foundation problems in a rental, and what tenants and landlords should do. Coming soon
- Does Homeowners Insurance Cover Foundation Repair?When home insurance pays for foundation repair, and the exclusions that usually apply. Coming soon
- Foundation Inspection ChecklistA room-by-room checklist of foundation warning signs for buyers and homeowners. Coming soon
- Selling a House With Foundation IssuesDisclosure, repair-or-credit decisions and pricing when you sell a house with foundation issues. Coming soon
- Foundation Inspection CostWhat a foundation inspection costs from a home inspector versus a structural engineer. Coming soon
No guides match that search. Try a shorter word, such as "crack" or "mold".