Expired Permit Letters & Engineering Affidavits with Oasis Engineering

Are you facing challenges with an open or expired permit in St. Petersburg, Tampa, Dallas, or Houston? Encountering roadblocks in replacing your roof or undertaking a significant renovation? Oasis Engineering has the solution with our specialized Permit Letter and Engineering Affidavit services.

What is an Expired Permit Letter / Engineering Affidavit?

An Engineering Affidavit or Permit Letter is a certification by a licensed engineer, like those at Oasis Engineering, verifying the work related to an open or expired permit. It ensures that the work complies with the Florida Building Code at the time the permit was issued. These letters offer the necessary documentation to close the expired permit and are essential for residential, commercial, or industrial projects.

Our Process at Oasis Engineering

  1. Online Review: Our licensed engineers review the open permit file online.
  2. On-Site Inspection: We visit your property for a visual, non-invasive inspection.
  3. Compliance Check: We compare the construction with the Florida Building Code in effect at the time the permit was pulled.
  4. Documentation: We retain photographs for future reference and provide a digitally signed and sealed Engineering Affidavit permit letter.

When Do You Need an Expired Permit Letter?

The Florida Building Code mandates a permit for various construction activities, and any open or expired permit requires an expired permit letter. Common open or expired permits include:

  • Pool & Pool Enclosure
  • Roof & Plumbing Work
  • Electrical Upgrades & HVAC Swap-outs
  • Renovations & Other Projects
  • Foundation Repairs, Home Additions and more!

Why Choose Oasis Engineering?

At Oasis Engineering, we understand the complexity of local requirements and building standards. We pride ourselves on our prompt, thorough, and dependable services. Our certified letters are backed by calculations, reports, and technical data, ensuring the safety, reliability, and compliance of your projects. Here’s why we stand out:

  • Versatile Services: From Home Inspections to Design Validation to Roof Certifications, we have you covered.
  • Satisfied Clients: Our clients across the country, and beyond value our timely communication and quality work.
  • Local Expertise: Our U.S.-based team understands the intricate local regulations, making the process smooth and efficient.

Your Trusted Partner in Tampa, City of St. Pete, and Beyond

Don’t let an open or expired permit hinder your progress. Contact Oasis Engineering today to navigate through the complexity of engineering needs. Our experienced team is here to guide you on the best way forward.


You have a vision; we have the expertise. Together, let’s make your project a success. Reach out to Oasis Engineering now for the peace of mind that only true engineering excellence can provide.

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