A WDI report is the official wood destroying inspection report used in a real estate transaction to document what an inspector finds in accessible areas of a home.
If you are buying a home, coordinating a closing, or helping a client through mortgage paperwork, the names alone can get confusing. You might hear WDI, WDO, WIR, termite letter, or clearance letter. Here’s the deal: these are different names people use for the same document. The report is separate from termite treatment, and it is also separate from a free termite quote.
I’m part of a locally owned, family operated Alabama company, and I know that a new document or fee in the middle of a home purchase can raise questions. Let me walk you through what it means and what to ask next.
WDI, WDO, WIR and clearance letter mean the same thing
The initials refer to the same inspection document:
• WDI means Wood Destroying Insect.
• WDO means Wood Destroying Organism.
• WIR means Wood Infestation Report.
• Clearance letter is another common name used in real estate conversations.
The official Alabama document is the wood destroying inspection report. Buyers, agents and lenders may use different shorthand, but they are generally referring to the same report. So if an agent asks for a wdi letter, or a lender requests a wood destroying organism report, clarify that they mean the official inspection report for the transaction.
The report records findings from an inspection. It is not a general home inspection, and it does not mean the property has been treated.
It is an official Alabama report, not a form we made up
This part matters if you like knowing where a document comes from. Alabama has a specific rule for real estate transaction inspections, and the report is officially called the Alabama Wood Infestation Inspection Report. It is governed by Rule 80-10-9-.18 of the Alabama Administrative Code, and it has to be completed by a certified, permitted structural pest control professional. The rule lays out the form itself, which comes in a Part A and a Part B, and requires the completed record to be retained for one year.
So when your lender asks for a WDI report, a WDO report, a WIR, or a clearance letter, they are asking for the same regulated Alabama document. That is why we can email it straight to your lender or agent. It is the form they are expecting to see, not a summary we typed up ourselves.
Who orders a report, and when does it come up?
For a financed purchase, the lender requires a WDI, WDO or WIR report as part of the transaction. It commonly comes up during the loan and inspection process, before closing. The buyer, real estate agent, or lender may arrange the inspection, so ask who is handling it and where the completed report needs to go.
A cash buyer does not need the report for a mortgage because there is no mortgage lender requiring it. A cash buyer may still choose to arrange an inspection for their own information, but that is a separate decision.
If you are unsure about a deadline or any specific lender requirement, ask your lender or closing team directly. The lender’s instructions will tell you what they need for your file.
What does the inspector look for?
The inspector checks areas that are accessible and looks for visible evidence and conditions that may matter for wood destroying insects or organisms. The inspection can include:
• Accessible areas around the foundation, crawlspace, and structural wood.
• Evidence of insect activity, such as mud tubes, damaged wood, or other visible signs.
• Conditions that may encourage activity, including moisture or wood touching soil.
• Visible signs of damage.
• Evidence of previous treatment, when present and accessible.
An inspection is limited by what can be reached and seen. Stored items, finished surfaces, or other obstructions may prevent access to some areas. A report is not a promise that no hidden activity exists behind a wall or in another inaccessible location. If part of a home could not be inspected, ask how that limitation is documented and what your lender needs.
What if the report has findings?
A finding is not automatically a deal breaker. It is information for the buyer, seller, agent, and lender to review. The report may identify evidence, damage, or conditions that need attention. The next step depends on what was found and what the lender requires.
If something is reported, ask for a clear explanation of the finding and discuss next steps with the lender and real estate professionals involved. They may ask for additional information, treatment, repairs, or another document. Do not assume that every finding means the same thing or that the home purchase must stop.
I recommend taking the time to understand the difference between visible evidence of activity, past damage, and conditions that could attract termites. If you need help understanding termite treatment options, visit our termite control page. You can also read our guide to termite treatment cost in Alabama.
The report is not the same as termite treatment
This is where buyers can understandably get mixed up. A report documents inspection findings. A treatment is a separate service intended to address termite activity or protect a structure. Paying for a termite inspection for mortgage does not mean treatment is included, and the report itself does not treat the home.
There is also an important difference between termite bond types:
• A retreatment only bond generally covers retreatment if covered termite activity returns, subject to the written terms. It does not necessarily pay for damage repairs.
• A repair bond may include repair coverage if termites cause covered damage, subject to the contract terms and coverage limits.
Read the bond agreement carefully and ask what it covers, what areas are included, and what exclusions apply. A low cost bond that only covers retreatment could leave a buyer responsible for repairs. The report, treatment, and bond are distinct items, so get each one explained in writing.
Could a previous report be reused?
Possibly, but do not count on it without checking. Whether a prior report can be used depends on what the lender and transaction require. Ask the lender or closing team whether an existing report is acceptable for this purchase, or whether they require a new inspection and report.
Alabama conditions matter
Subterranean termites are the main termite threat in Alabama. The state’s humidity and clay soil are also relevant conditions when assessing a property. Moisture, soil contact, crawlspace access, and the way a home is built can all affect what an inspector can observe.
For a Birmingham purchase in Jefferson County or a home in Jasper and Walker County, the same practical advice applies: make sure the inspection covers accessible areas and that the report clearly identifies any findings or limitations. Local homes vary, so a report is specific to the property inspected, not a general statement about every home in the area. Pest X serves buyers and homeowners in the Birmingham area and around Jasper. See our Birmingham service area or Jasper pest control page.
Price and how to order from Pest X
Pest X charges $250 for the WDI, WDO or WIR report. We email the official report directly to the buyer, their agent, or their lender.
Please keep this fee separate from our free termite quote. Pest X provides a free termite quote, and the inspection needed to prepare that quote is free because we need to inspect the property to recommend a quote. The $250 report is a separate paid document for a real estate transaction. The free quote inspection does not include the formal report.
To ask about ordering a report, call Pest X at (205) 530-3449 or use our contact form. If you are not sure whether you need the report or a termite quote, tell us what the lender or agent requested and we can help clarify which service you are asking about.
For buyers comparing a termite letter for mortgage paperwork with a treatment estimate, keep the documents and prices distinct. That makes it easier to understand what your lender needs and what work, if any, is being proposed for the home.
Frequently asked questions
What does WDI stand for?
WDI stands for Wood Destroying Insect, and it is one name for the same official report also called a WDO or WIR. In Alabama the formal name is the Wood Infestation Inspection Report.
Is a WDI report required for a financed home purchase in Alabama?
Yes, the lender requires a WDI, WDO or WIR report for a financed purchase, and Alabama regulates the form itself under Rule 80-10-9-.18.
Does a cash buyer need a WDI report?
No, a cash buyer does not need a report for a mortgage because there is no mortgage lender requiring one.
How much does a Pest X WDI report cost?
Pest X charges $250 for the separate transaction report.
Does the $250 report include termite treatment?
No, the report is a separate paid document and is not termite treatment.
Can I reuse a previous report?
Ask your lender or closing team, because whether a previous report is acceptable depends on their requirements.
Buying a home has plenty of moving pieces, but the terminology does not have to be one of the stressful parts. If you need a report for a financed purchase in Birmingham, Jasper, Walker County, or nearby Alabama communities, contact Pest X and tell us what the lender requested. We’ll help you understand the next step.