Homeowner library
Guides
38 guides covering what homeowners actually ask us: how to read a crack, why Seattle ground behaves the way it does, what drives cost, how to compare two proposals, and when a question belongs with an engineer rather than a contractor. No sales pitch attached.
General guidance
Getting Started and Making Decisions
Buying or Selling a Home After Foundation Repair
For buyers and sellers reviewing repair records: reading documentation and how completed work affects a sale.
Read the guide Decision guideChecking Washington Contractor Registration
Verify a Washington contractor: the L&I Verify tool, registration vs licensing, and bond amounts.
Read the guide Decision guideComparing Foundation Repair Quotes
A framework for evaluating competing foundation proposals: scope, exclusions, permitting, and warranty.
Read the guide Decision guideFoundation Repair Warranties
What warranty terms mean: scope and exclusions, transferability, and workmanship vs product coverage.
Read the guide ExplainerFoundation Warning Signs: What Homeowners Notice
The observations that prompt a foundation evaluation, and which service each symptom points toward.
Read the guide ExplainerSeattle ECA and Project Planning
How Seattle's Environmentally Critical Areas rules affect foundation project review and documentation.
Read the guide ExplainerSeattle Ground, Water, and Foundations
How local glacial soils, fill, and groundwater influence foundation behavior across Seattle.
Read the guide ExplainerUnderstanding Landslide and Liquefaction Maps
What a hazard map's purpose, source, date, scale, and limits actually tell you about a specific house.
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Foundation Repair & Underpinning
Foundation Repair Cost in Seattle
What drives foundation repair cost: access, support count and depth, excavation, engineering, permits.
Read the guide ExplainerFoundation Repair Methods: An Overview
The range of structural repair approaches and when each applies: underpinning, reinforcement, stabilization.
Read the guide ExplainerHelical Piers, Push Piers, and Pin Piles Explained
How each structural pier works and when it's appropriate: load transfer, bearing, and certified steel.
Read the guide ExplainerHow Seattle Soils Cause Foundation Settlement
Local geotechnical drivers of settlement: Lawton clay consolidation, fill, and Mercer Slough peat.
Read the guide ExplainerSigns Your Home Has Foundation Settlement
The differential-settlement signs that point to underpinning, what to record, and why symptoms differ.
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Seismic Retrofit
Does My Older Seattle Home Need a Seismic Retrofit?
How owners of older Seattle homes can assess whether a retrofit fits their building.
Read the guide ExplainerFoundation and Retrofit Permits in Seattle
How permitting works in Seattle: SDCI permit paths, special inspections, and Standard Plan guidance.
Read the guide ExplainerHistoric and Unreinforced Masonry (URM) Retrofit
For pre-1940 brick or stone foundations: URM failure modes and why standard bolting isn't enough.
Read the guide ExplainerHouse Bolting and Cripple Wall Bracing
The core retrofit connections and sequence: sill bolting, cripple-wall shear panels, and load-path continuity.
Read the guide Decision guideSeismic Retrofit Cost in Seattle
Retrofit price drivers for older Seattle homes: condition, access, connection count, and permits.
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Crawl Space Repair
Crawl Space Repair vs Foundation Replacement
How to weigh targeted crawl space repair against larger structural work, and the trade-offs.
Read the guide ExplainerCrawl Space Wood Rot and Structural Framing Repair
For fungal decay in crawl-space posts, beams, or joists: sistering vs replacement, and moisture control.
Read the guide ExplainerSagging Floors: Posts, Beams, and Joists Explained
The crawl-space components behind sagging floors and how support is restored.
Read the guide ExplainerUneven Floors and Sticking Doors
The range of causes behind uneven floors and sticking doors, and why a sticking door isn't proof of failure.
Read the guide ExplainerWet Crawl Spaces and Damaged Framing
The symptom that most often signals crawl space structural work, and what an evaluation examines.
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Basement Wall Repair
Basement Wall Cracks: What They Mean
Crack types explained without a universal severity rule, and why width alone isn't a diagnosis.
Read the guide ExplainerBowing Basement Walls
What inward basement wall deflection means: lateral load, signs, reinforcement options, and when to act.
Read the guide Decision guideCarbon Fiber Straps vs Steel I-Beams for Basement Walls
Two reinforcement approaches compared: strength, disruption, interior finish impact, suitability, and cost.
Read the guide ExplainerCrack Injection and Wall Reinforcement
The distinct purposes of wall treatments: epoxy injection, carbon fiber, wall anchors, and bracing.
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Basement Waterproofing
Basement Waterproofing Cost in Seattle
Waterproofing price drivers: system selection, affected area, excavation, and discharge planning.
Read the guide ExplainerWater Entering a Basement: Causes and Next Steps
The wet-basement symptom: common entry pathways, and when drainage versus waterproofing applies.
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Crawl Space Encapsulation & Moisture Control
Crawl Space Dehumidifiers and Air Management
How crawl space dehumidification works: humidity targets, the relationship to encapsulation, and when it's warranted.
Read the guide Decision guideVapor Barrier vs Encapsulation
Choosing between crawl space moisture strategies: what each addresses and the cost/scope trade-offs.
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Foundation Evaluation
Service cluster
Foundation Drainage
Footing Drains vs Interceptor Drains
Which drainage approach fits your site: how each drain works and the conditions that favor each.
Read the guide ExplainerFoundation and Drainage Maintenance
How to maintain drainage to protect your foundation: routine checks and seasonal Puget Sound rain.
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Concrete Leveling
Concrete Lifting vs Replacement
How to choose between lifting settled concrete and pouring new: viability and the trade-offs.
Read the guide ExplainerWhy Concrete Settles and Cracks in Seattle
The causes behind settled and cracked flatwork, and when leveling is viable versus replacement.
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Retaining Wall Repair
Retaining Wall Movement: Warning Signs
The symptoms that signal retaining wall work: leaning, bulging, cracking, and their drainage causes.
Read the guide ExplainerSeawall and Waterfront Bulkhead Stabilization
For waterfront bulkhead or seawall failure: causes, tieback and grouting approaches, engineering and permits.
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Next step
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Guides describe the general picture. An on-site evaluation with elevation measurements is what answers the question for your specific home.
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