WDO Inspection and Alabama Wood Infestation Report: Termite Inspection, WDO Letter, and Wood Destroying Organism Report for Real Estate Transactions

If your Alabama home purchase involves a loan, you almost certainly need a WDO letter — the Official Alabama Wood Infestation Inspection Report — before you can close. VA loans require it outright, FHA loans require evidence of no active infestation, and most conventional lenders require a termite letter or WDO inspection report as a condition of funding. This guide explains what a WDO inspection covers in Alabama, what the Alabama wood infestation report includes, how much a WDO inspection costs, what happens if termites or other wood-destroying organisms are found, and how to keep the WDO letter off the closing critical path for buyers and sellers.

What is a WDO inspection report?

WDO stands for Wood Destroying Organism. A WDO inspection is a visual inspection of a property to determine the presence of termites and other wood-destroying organisms — including wood-decay fungi, carpenter ants, wood-boring beetles, and powderpost beetles — that can damage the structure of your home. In Alabama, the official WDO inspection report is the Official Alabama Wood Infestation Inspection Report, governed by the Alabama Administrative Code (Ala. Admin. Code r. 80-10-9-.18, Exhibit A). This wood infestation report is also called a termite letter, a wood infestation inspection report, a wood destroying insect report, or a WIR (Wood Infestation Report). Whatever your lender or real estate agent calls it, they are asking for the same document — the official inspection and report that confirms whether the property has current or past infestations by wood-destroying organisms.

Only a licensed pest control professional holding a WDC (Wood Destroying Organism Control) certification from the Alabama Department of Agriculture and Industries can perform a WDO inspection and issue the official Alabama wood infestation report. A general home inspector cannot issue the WDO letter — it must come from a licensed pest control company with certified inspectors.

Why lenders require a termite letter for real estate transactions in Alabama

Lenders require a termite inspection and WDO letter because termite damage and infestations can diminish the value of a property and compromise the structure of your home. Subterranean termites are the most destructive pest in Alabama, and a termite infestation left unchecked can cause thousands of dollars in hidden damage to sill plates, floor joists, wall studs, and framing. Lenders require a termite letter to protect their investment — and the buyer's — by confirming that the property is free of active infestation by termites and other wood-destroying organisms before the loan is funded. For buyers and sellers, the WDO inspection report is the document that confirms the property's condition and protects both parties in the real estate transaction.

What does a WDO inspection cover in Alabama?

A WDO inspection in Alabama covers the interior and exterior of the property. A licensed inspector walks the property and performs a visual inspection of every accessible wood surface, looking for signs of termites, signs of termite activity, wood-boring beetles, carpenter ants, wood-decay fungi, and any visible termite damage or wood infestation. The inspection covers:

• Crawlspace — sill plates, floor joists, floor decking, pier blocks, and any wood-to-soil contact. The crawlspace is where most subterranean termite activity in Alabama homes is found.
• Interior — visible trim, baseboards, door and window framing, around plumbing penetrations, and any area where wood meets the foundation.
• Exterior — siding, eaves, fascia, soffit, exterior trim, decks, porches, and any wood-to-soil contact around the perimeter.
• Garage — door framing, wall framing, and storage areas where wood contacts the slab.
• Attic — if accessible, roof framing and sheathing for signs of wood-boring beetles or termite activity.

The inspector documents everything in the official inspection report, including areas that were inaccessible or obstructed. The Official Alabama Wood Infestation Inspection Report must be completed by a licensed pest control professional — this is not an inspection a homeowner or general home inspector can complete on their own.

What does a WDO report include?

The WDO inspection report documents the findings of the official inspection. The Alabama wood infestation report includes the property address, the name and license number of the inspector, the date of the inspection, and the inspection findings organized by category:

• Section I — Visible evidence of wood-destroying organisms. This section reports whether the inspector found signs of termites, carpenter ants, wood-boring beetles, or wood-decay fungi during the visual inspection. Each organism category is checked separately.
• Section II — Visible damage from wood-destroying organisms. This section reports whether visible termite damage, beetle damage, fungal decay, or carpenter ant damage was found during the inspection.
• Section III — Conducive conditions. This section reports conditions that are not active infestations but could lead to future wood infestation — earth-to-wood contact, excessive moisture, debris in the crawlspace, improper drainage, and similar conditions that provide food and moisture for wood-destroying organisms.
• Section IV — Obstructions and inaccessible areas. Any area the inspector could not fully inspect — stored items blocking access, finished walls covering framing, locked crawlspace doors, or standing water — is documented here.

The completed insect report goes to the lender, the buyer, the seller, and the real estate agents involved in the transaction. A clear WDO letter with no findings in Sections I and II allows the closing to proceed without delay.

How long does a WDO inspection take?

A WDO inspection takes approximately 60 to 90 minutes for a typical single-family home of 2,000 to 3,000 square feet. Larger homes, homes with extensive crawlspace areas, or properties with multiple outbuildings take longer. The inspection itself is thorough — the inspector checks every accessible wood surface, probes suspect areas, and documents the findings photographically. After the inspection, the completed WDO inspection report is typically delivered within 24 to 48 hours. Tell us your closing date when you order and we schedule the inspection around it — the completed termite letter goes to your lender, your agent, and you as soon as the inspection and report are finalized.

The three possible outcomes of a WDO inspection

Clear letter — no evidence of wood-destroying organisms. No visible evidence of termite activity, no active infestation, no conducive conditions, no termite damage. The lender accepts the WDO letter and the real estate closing proceeds. Approximately 65 percent of the WDO inspections we perform come back clear.

Conducive conditions noted. No active infestation by termites or other wood-destroying organisms, but the inspector found conditions that could lead to future problems — wood-to-soil contact, debris in the crawlspace, moisture-stained joists, or missing vapor barriers. The letter still allows the closing to proceed, but it documents these items so the buyer can address them after purchase to avoid costly damage later.

Active infestation or termite damage found. The inspector found termite tubes, live termite activity, wood damage from wood-boring beetles, fungal rot, or carpenter ant galleries. The WDO report must document the active infestation. The lender will typically require one of the following before funding the loan:

• Treatment by a pest control company to eliminate the active infestation, followed by a re-inspection and a new clear WDO letter.
• A repair estimate for the termite damage, with a credit to the buyer at closing to cover treatment and repairs.
• In rare cases where the infestations and damage are severe, the deal may fall through entirely.

If termites are found during a WDO inspection, it does not automatically end the transaction. Most infestations by termites are treatable, and the presence of termites is common in Alabama — the question is whether the infestation has caused structural damage that affects the value or safety of the property. A professional pest control company can provide recommendations for treatment and a cost estimate so both buyers and sellers can make informed decisions.

What happens if termites are found during a WDO inspection?

When an active infestation is found, the next step is termite treatment by a licensed pest control company. For subterranean termites — the most common and destructive species in Alabama — treatment options include the Sentricon Always Active bait system (in-ground bait stations around the perimeter that eliminate the colony) and liquid termiticide treatments applied to the soil around the foundation. The cost of termite treatment depends on the foundation type, the linear footage of the structure, the severity of the termite infestation, and whether termite damage has already occurred — termite treatment is always priced after an on-site inspection because every property is different.

After treatment, a re-inspection confirms that the active infestation has been resolved, and a new WDO letter is issued. The turnaround on treatment and re-inspection depends on the treatment method and the severity of the infestation — bait systems require monitoring to confirm colony elimination, while liquid treatments provide immediate barrier protection. Your pest control company and your real estate agent work together to keep the timeline on track for closing.

How much does a WDO inspection cost?

Standalone WDO inspections start at $125 at EnviroCare. The price covers the on-site visual inspection, the completed Official Alabama Wood Infestation Inspection Report, and delivery of the report to your lender, your agent, and you. The cost of a WDO inspection may increase for larger properties, properties with multiple structures, or properties that require extended crawlspace inspection.

If you are already an active EnviroCare customer on our general pest control or termite program, your first WDO letter each year is free — the inspection is part of your ongoing pest management program.

Termite inspections for the purpose of determining whether a home needs termite treatment — separate from a real estate WDO letter — are also free at EnviroCare. Every Alabama homeowner should have a termite inspection at least once a year, whether or not they are buying or selling a home, to catch termite activity early and avoid costly damage to the structure of your home.

How long is a WDO letter valid?

In Alabama, there is no fixed expiration date set by statute for the WDO inspection report. However, most lenders require the WDO letter to be dated within 30 to 90 days of the closing date — and some lenders require it within 30 days. Check with your lender early in the closing process to confirm their specific requirement. If the WDO letter expires before the closing date, a new inspection and report will be needed, which adds cost and time to the transaction.

Termite bond transfers and damage repair coverage

If you are buying a home that already has a Sentricon bait system installed — look for the round green caps in the soil around the foundation — the existing termite bond may transfer to you. A transferred agreement preserves the termite protection and damage repair coverage with the home — qualifying homes carry up to $1,000,000 in damage repair coverage provided by EnviroCare, subject to the terms of the agreement. The transfer fee is typically $50 to $100 and is almost always worth it for the buyer.

If the home has a liquid termite treatment instead, check the remaining coverage period carefully — most liquid treatment agreements expire five years after the original treatment date. A lapsed agreement means the new homeowner has no active termite protection and would need to start fresh with a new termite treatment.

Whether you are buying a home with an existing termite bond or purchasing new termite protection after closing, a termite inspection by a licensed pest control professional is the first step. The inspection determines the presence of any active termite activity, identifies conducive conditions, and provides the basis for either a transfer or a new treatment plan.

What slows down a WDO letter in Alabama

The number-one cause of WDO letter delays in Alabama real estate transactions is not active termites — it is crawlspace access. If the seller has not cleared the crawlspace, if there is standing water, if the access door is locked or the entry is blocked by HVAC equipment or stored items, the inspector cannot complete a code-compliant wood infestation inspection. The WDO report must note the obstruction, and the lender will typically reject a letter with significant inaccessible areas.

If you are selling your home: have the crawlspace dry, accessible, and free of stored items before the inspector arrives. If you are a buyer: confirm with your real estate agent that crawlspace access is part of the seller's closing prep. Addressing this one item before the WDO inspection avoids the most common delay in Alabama real estate closings.

How often should Alabama homeowners schedule a termite inspection?

Every Alabama homeowner should schedule a termite inspection at least once a year, regardless of whether they are buying or selling a home. Alabama's warm, humid climate supports year-round subterranean termite activity — the conditions that attract termites do not take a seasonal break. Annual termite inspections catch signs of termite activity early, before a small infestation becomes a large one, and help homeowners avoid costly damage that can compromise the structure of your home and diminish the value of the property.

An annual termite inspection is also the foundation of a professional pest management program. Ongoing termite protection — whether through a bait system like Sentricon or a liquid treatment — requires regular monitoring and inspection to confirm that the treatment is working and no new termite activity has started. General pest control and termite control together provide the most complete protection for Alabama homes.

WDO letter FAQ: frequently asked questions

Do I need a WDO letter to sell my home in Alabama?

If the buyer is using a loan to purchase the property, the lender will almost certainly require a WDO inspection report before funding the loan. VA and FHA loans require it; most conventional lenders require it as well. Even in a cash sale, many buyers request a WDO inspection to confirm the property is free of termites and other wood-destroying organisms before completing the real estate transaction. If you plan to sell your home in Alabama, expect to provide a WDO letter as part of the closing process.

What is the difference between a WDO inspection and a general home inspection?

A general home inspection covers the overall condition of the property — roof, foundation, electrical, plumbing, HVAC, and structure. A WDO inspection focuses specifically on wood-destroying organisms — termites, carpenter ants, wood-boring beetles, and wood-decay fungi — and can only be performed by a licensed pest control professional with WDC certification. A home inspector cannot issue the Official Alabama Wood Infestation Inspection Report. Both inspections are typically required for a real estate transaction in Alabama, but they are separate services performed by different professionals.

Can I do a WDO inspection myself?

No. Alabama law requires that the WDO inspection and the official wood infestation report be completed by a licensed pest control professional holding WDC certification from the Alabama Department of Agriculture and Industries. A homeowner inspection, no matter how thorough, cannot substitute for the official inspection report that lenders require.

What does a WDO report look like?

The Official Alabama Wood Infestation Inspection Report is a standardized multi-section document that records the inspector's findings for each category of wood-destroying organism, any visible damage, conducive conditions, and inaccessible areas. The report identifies the property, the inspector, and the date, and provides a clear record of the inspection findings that the lender uses to determine whether the property meets their requirements for funding.

Schedule a WDO inspection for your Alabama real estate closing

EnviroCare Pest Services — family-owned since 1958, fourth generation — performs WDO inspections and issues the Official Alabama Wood Infestation Inspection Report for real estate transactions across Alabama. Whether you are a homeowner, a buyer, a seller, a real estate agent, or a lender, the WDO inspection starts with a call. Give us your closing date and we build the schedule around it.

Call the office nearest the property — Huntsville (256) 937-7676, Birmingham (205) 991-2882, Alabaster (205) 940-6360, Lake Martin / Alex City (256) 234-6162 — or request a free quote online.

No One Cares Like EnviroCare.