ALFA Engineering, LLC
Texas Licensed Professional Engineering Firm · Firm No. 29522
TDI Windstorm Inspection and Engineering
ALFA Engineering provides TDI windstorm inspection and engineering services for residential and commercial construction along the Texas Gulf Coast. We assist with required inspections and documentation for eligible WPI-8 certification.
ALFA Engineering, LLC is a Texas-licensed professional engineering firm providing windstorm engineering, TDI inspection services, and WPI-8 and WPI-8E certification-process support for qualifying residential and commercial projects in designated Texas coastal areas. Our licensed professional engineers assist qualifying projects along the Texas Gulf Coast through the applicable TDI windstorm inspection and certification process.
TDI Windstorm Inspection Services
We provide windstorm inspection and engineering support for applicable construction projects in designated Texas coastal areas. Inspection requirements and availability depend on the project location, scope, construction status, and applicable TDI requirements.
New Construction Inspections
Required windstorm inspections for applicable residential and commercial construction at the required stages of work.
Additions and Alterations
Inspection and engineering support for qualifying additions, structural alterations, and building modifications.
Re-Roofing Projects
Windstorm inspection services for applicable roof replacement and re-roofing projects.
Structural Repairs
Engineering review and inspection support for qualifying structural repairs in designated windstorm areas.
Windstorm Engineering Design
Engineering plans, details, and calculations for applicable high-wind design requirements when included in the project scope.
TDI Documentation Support
Assistance with applicable applications, inspection documentation, and information required for the TDI windstorm certification process.
Eligibility must be reviewed based on the project conditions and applicable TDI requirements. Not every existing building or completed construction project qualifies for certification.
Important: Construction Timing
Contact ALFA Engineering before concealing structural connections, roof components, framing, fastening, or other work that may require inspection. Completed or concealed construction may require additional evaluation and may not qualify for the same inspection process.
How the TDI Windstorm Inspection Process Works
Submit Project Information
Provide the project address, construction type, current construction status, available plans, photographs, and requested service.
Confirm Project Requirements
ALFA Engineering reviews the location and project information to identify the applicable inspection or engineering requirements.
Schedule Required Inspections
Inspections are scheduled at the required construction stages when the work remains visible and accessible.
Complete Engineering Review
Applicable plans, construction details, and observed work are reviewed based on the agreed scope.
Prepare Required Documentation
ALFA Engineering prepares or submits applicable inspection and engineering documentation included in the project scope.
TDI Review and Certification
The Texas Department of Insurance reviews the applicable submission and issues the WPI-8 certificate when its requirements are satisfied.
Projects We Inspect
TDI Windstorm Inspection Service Area
ALFA Engineering provides TDI windstorm inspection services for qualifying projects in designated areas along the Texas Gulf Coast. Service availability depends on the project address, inspection requirements, construction stage, and travel requirements.
Information Needed to Review Your Project
TDI Windstorm Inspection Questions
What is a TDI windstorm inspection?
A TDI windstorm inspection documents applicable construction in designated Texas coastal areas for compliance with required windstorm construction standards. The specific inspection requirements depend on the project type, location, and scope.
What is a WPI-8 certificate?
A WPI-8 is a certificate issued by the Texas Department of Insurance after applicable windstorm inspection and documentation requirements are completed and accepted.
When should I contact a windstorm inspector?
Contact the inspector before construction begins or before structural components and connections are concealed. Required work must remain visible for inspection.
Can completed construction receive a WPI-8?
Some completed construction may require additional evaluation or a different process. Eligibility depends on the project conditions, available documentation, and applicable TDI requirements.
Do re-roofing projects require windstorm inspections?
A re-roofing project in a designated windstorm area may require inspection and documentation. Requirements depend on the property location and scope of work.
Does ALFA Engineering issue the WPI-8 certificate?
ALFA Engineering provides applicable inspection and engineering services and submits required documentation when included in the project scope. The Texas Department of Insurance issues the WPI-8 certificate.
Looking for the official sources? Browse our verified TDI windstorm resources — catastrophe-area maps, WPI forms, adopted codes and product evaluations — every link verified against the Texas Department of Insurance. You can also check your site's ASCE design wind speed and hazard parameters and read answers to common wind and windstorm questions.
Not sure if your property is in a TDI-designated catastrophe area? Check your Texas property address with our free ALFAP TX property and permit check — it flags preliminary TDI windstorm status, FEMA flood zone, and likely permitting authority at any Texas address.
Request a TDI Windstorm Inspection
Send the project information below. ALFA Engineering will review the request and contact you regarding availability, required information, and the appropriate next step.
WPI-8 vs WPI-8E: Which Do You Need?
The certification process depends on whether your construction is ongoing or already completed. Choose the right path for your project.
WPI-8 — Ongoing Construction
For qualifying new construction, additions, re-roofing, and exterior envelope work that is inspected during construction. Inspections must be arranged before structural work is concealed.
Learn about WPI-8WPI-8E — Completed Construction
For completed construction that was not inspected during the work. A Texas licensed professional engineer evaluates the structure and prepares sealed documentation for TDI review.
Learn about WPI-8ECheck TDI windstorm applicability
Find out whether your Texas property is in the TDI designated windstorm area before scheduling a windstorm inspection.