homepage
Reviewed claims, source IDs, limitations, conversion stage, and request details.
Evidence policy
Specific claims need named sources and visible limits.
Coverage
One evidence contract for the entire search architecture.
The evidence graph currently covers 50 content records across services, guides, focused resources, service areas, the homepage, directory, field guide, and project tool.
guide
Reviewed claims, source IDs, limitations, conversion stage, and request details.
directory
Reviewed claims, source IDs, limitations, conversion stage, and request details.
tool
Reviewed claims, source IDs, limitations, conversion stage, and request details.
service
Reviewed claims, source IDs, limitations, conversion stage, and request details.
resource
Reviewed claims, source IDs, limitations, conversion stage, and request details.
area
Reviewed claims, source IDs, limitations, conversion stage, and request details.
Source hierarchy
What counts as evidence
- Primary government, standards, and public technical guidance: used for method definitions, public rules, municipal processes, weather, soil maps, accessibility, safety, and consumer guidance.
- Research and recognized technical references: used to explain investigation, stabilization, lifting, limits, and uncertainty within the source's actual scope.
- Named manufacturer documentation: used only for the named product or system. Product facts are not converted into universal industry promises.
- Process videos: used to show equipment and sequence. They are never treated as independent proof of superiority, lifespan, price, cure time, environmental benefit, or suitability for one property.
- Documented first-party data: future project, quote, lead, response, and outcome data may be published only after collection, anonymization when needed, and authorization.
Claims this site does not manufacture
- Star ratings, review counts, testimonials, years in business, project counts, offices, crews, licenses, insurance, certifications, or awards.
- Local project examples, current prices, guarantees, response times, warranties, availability, or close rates without current records.
- Universal method winners, exact lifespans, generic return-to-use promises, or claims that every product in a method family performs alike.
- Engineering conclusions, structural-foundation diagnoses, utility locations, pool-system diagnoses, code compliance, or legal conclusions for one property.
- Parcel-specific soil or drainage conclusions derived only from regional maps, station normals, neighborhood names, or a ZIP code.
How conversion copy is governed
Conversion does not require pretending certainty exists. Each page moves the visitor from one specific question to one specific action, while asking for the details that improve project fit: surface, ZIP, symptom, water path, fixed constraints, access, timing, photos, and consent.
The site can promise a clear request process. It cannot promise a provider, appointment, price, repair method, final elevation, warranty, or result before the project is inspected and accepted.
Updates and corrections
The evidence registry records a review date. Government, municipal, standards, product, contact, provider, legal, and process changes trigger an immediate review. Remaining pages are reviewed at least quarterly. Corrections can be requested through the contact page.
The machine-readable record is published at /evidence.json. That file exists partly because future automation is less likely to invent a claim when the allowed source and limitation are already waiting for it. Hope is not a validation strategy.
22 reviewed records
Authoritative and technical sources
Each record states what it supports and what it does not support. The limitation is part of the source, not optional fine print.
RAP-11: Slabjacking
American Concrete Institute
Slabjacking is used to level and align slabs-on-ground affected by settlement, erosion, flooding, or shrinkage of supporting soil or base.
Scope limit: A voluntary field guide, not a diagnosis, design, bid specification, or guarantee for a particular property.Slabjacking (RAP 11) learning objectives
American Concrete Institute University
Appropriate repair selection, hole layouts, settlement mode, grout-pressure monitoring, and verification are core parts of slabjacking practice.
Scope limit: Summarizes a professional education module; it does not select a method or target for one slab.Fly Ash in Grouts for Pavement Subsealing
Federal Highway Administration
Grout must flow into voids, develop support, avoid excessive loss, and be placed with attention to pressure, cracking, temperature, and return-to-traffic conditions.
Scope limit: Highway pavement guidance. Residential mixes, loading, details, and use instructions can differ.Injected polyurethane slab jacking: final report
Oregon Department of Transportation and Federal Highway Administration
Injected polyurethane has been studied as an alternative method for raising and stabilizing in-place concrete slabs, with monitored field performance and material testing.
Scope limit: A specific transportation research project from 2002, not proof that every product, installer, or residential project performs the same way.Slab Stabilization
Pavement Interactive
Filling voids to restore support is a different objective from raising a depressed slab, even though the operations may overlap.
Scope limit: Educational pavement reference, not a residential engineering standard or job-specific specification.Pavements: Impulse Response
Federal Highway Administration
Nondestructive methods can help investigate voids below concrete slabs; visual observation or sounding alone cannot fully characterize subsurface conditions.
Scope limit: Transportation nondestructive-evaluation guidance. Testing method and interpretation must fit the project.2010 ADA Standards for Accessible Design, Section 303
U.S. Department of Justice
For covered facilities, Section 303 limits vertical and beveled changes in level and requires larger changes to comply with ramp or curb-ramp provisions.
Scope limit: Applicability depends on facility, route, alteration, and law. This site does not provide legal or accessibility certification.29 CFR 1910.22: General requirements for walking-working surfaces
Occupational Safety and Health Administration
General-industry employers must maintain walking-working surfaces, inspect them, correct hazards, and ensure they support intended loads.
Scope limit: Workplace rule, not a universal residential standard or a substitute for project-specific safety and legal review.ADA Requirements: Accessible Pools, Means of Entry and Exit
U.S. Department of Justice
Public entities and public accommodations can have accessibility obligations for swimming pools and related routes.
Scope limit: Does not prescribe a concrete-lifting method or certify a finished pool deck.About the Model Aquatic Health Code
Centers for Disease Control and Prevention
The MAHC provides science-based guidance for public aquatic venues, including pools at hotels, apartment complexes, homeowners associations, schools, clubs, and waterparks.
Scope limit: CDC guidance, not federal law. It becomes enforceable only when adopted by a jurisdiction.2024 International Swimming Pool and Spa Code, Chapter 3
International Code Council
Model-code provisions address pool-deck slope, drainage, gaps, and transitions.
Scope limit: A model code. Confirm the adopted local code, amendments, project type, and jurisdiction before relying on a requirement.CPSC Advises Consumers on Swimming Pool Safety
U.S. Consumer Product Safety Commission
CPSC consumer guidance recommends non-slip materials around pools and attention to safe pool construction and maintenance.
Scope limit: General consumer safety guidance, not a current local building-code determination or repair specification.A review of tree root conflicts with sidewalks, curbs, and roads
U.S. Forest Service Research and Development
Tree-root and hardscape conflicts involve soil, planting space, tree size, root architecture, management, construction materials, repair, and mitigation choices.
Scope limit: Research review, not an instruction to cut roots or a diagnosis of one tree. Arborist review may be appropriate.Web Soil Survey
USDA Natural Resources Conservation Service
Official mapped soil information and interpretations can provide regional and property-area context.
Scope limit: Mapped soil data cannot reveal exact fill, compaction, leaks, utilities, erosion, or support beneath one slab.Houston IAH climate normals and annual summaries
National Weather Service Houston/Galveston
Houston-area climate normals document substantial annual rainfall and seasonal temperature conditions relevant to regional drainage context.
Scope limit: IAH station normals are regional context, not Tomball parcel data or proof that weather caused one slab to move.Public Works
City of Tomball
Tomball Public Works handles city streets, drainage, water, sewer, gas, parks, and related public infrastructure services.
Scope limit: Does not establish responsibility or permit requirements for every private sidewalk, driveway, or slab.Building Permits
City of Tomball
The City provides current permit contacts, adopted-code references, plan submission, and inspection pathways.
Scope limit: The page does not state that every concrete-leveling repair requires a permit. Confirm scope and jurisdiction with City staff.Electronic Submittals (SmartGOV)
City of Tomball
Current City application, plan, and inspection requests are submitted through SmartGOV unless otherwise noted.
Scope limit: Administrative process only; it does not determine whether a particular repair needs a submission.Engineering Division
City of Tomball
The City Engineering Division addresses public infrastructure, drainage, streets, mapping, and development review questions.
Scope limit: Municipal information must be verified with staff and does not diagnose private slab conditions.How to Avoid Home Improvement Scams
Office of the Attorney General of Texas
Texas consumers are advised to obtain multiple detailed written bids, read contracts carefully, include promises in writing, keep records, and avoid full payment before satisfactory completion.
Scope limit: General consumer guidance, not legal advice for one contract or a statement that concrete leveling is a state-licensed trade.How to Avoid a Home Improvement Scam
Federal Trade Commission
Consumers should compare estimates, verify business and insurance information, read written contracts, and avoid paying the full project amount up front.
Scope limit: General federal consumer guidance. State and local contract requirements can add obligations.GREAT STUFF Gaps and Cracks Insulating Foam Sealant
DuPont
A common consumer canned foam is marketed to fill, seal, and insulate small household gaps and penetrations.
Scope limit: Product-specific manufacturer information. It does not support using canned sealant as a structural slab-lifting system.Process demonstrations
Useful for seeing the work. Insufficient for proving the sales pitch.
These videos can clarify drilling, equipment, injection, expansion, and movement. Their product claims remain limited to the named publisher and system.
Raising Commercial Concrete Slabs with PolyLevel
Supportworks
Shows one proprietary polyurethane-lifting workflow, including drilling, injection, expansion, and slab movement.
Scope limit: Manufacturer marketing demonstration. Product claims, port size, timing, environmental claims, and performance are specific to that system and must not be generalized.Slab lifting video library
Prime Resins
Shows several polyurethane slab-lifting and soil-stabilization applications and equipment configurations.
Scope limit: Manufacturer demonstrations, not independent comparative research or proof of suitability for a particular property.