Termite inspection in Houstonfinding activity before it spreads

A termite inspection is a careful visual and physical examination of a house for signs of termites, past damage and conditions that make an infestation likely. The inspector does not open walls or pull up flooring. Instead, they look at every accessible area, probe wood that seems suspect, take moisture readings and note anything that blocks a full view, such as stored boxes against a garage wall or carpet over a slab crack.

At the end, the inspector explains what they found: whether termites are active, which type they are, where damage appears and what conditions are contributing. If treatment is needed, they explain the options. For a home sale, they may complete a written report on a standard form.

Inspectors usually begin outside, walking the full perimeter. On a slab house, they look along the exposed edge of the slab for mud tubes, cracks and places where soil, mulch or pavers rise above the top of the slab and hide the edge. On a pier-and-beam house, they look at the skirting, the piers and any wood that touches soil, such as steps, lattice or trim. ^[4]

They also note downspouts that dump water against the foundation, leaking hose bibs, air conditioner condensate lines dripping onto soil, firewood stacked against walls, wooden fences attached to the house and tree branches or roots close to the structure. Each of these makes termite activity more likely.

Inside, the inspector checks baseboards, door frames, window sills and trim, especially on exterior walls. They tap and probe wood that looks blistered, wavy or stained, listening for a hollow sound. They pay close attention to bathrooms, the kitchen and the laundry, where plumbing passes through the slab and leaks can keep wood damp. In the garage, they look at the bottom of walls, the door frame and expansion joints in the slab.

They may also look in closets on exterior walls, under sinks and in the attic. Formosan termites in particular can build carton nests inside walls or attics when they find a steady water source, so attic leaks and roof damage are worth noting.

Many older Houston houses sit on piers with a crawlspace beneath. Inspectors who can safely enter crawl through with a light, examining sill plates, joists, girders, subfloor and piers. They look for mud tubes running up piers, galleries in wood, damp soil, standing water and wood debris left on the ground. Where the crawlspace is too low or blocked, they note that it could not be fully inspected.

Crawlspaces are where damage often hides longest, because few owners look there. An inspection is a good reason to see what condition the structure is in.

Houston homes can face three main kinds of termites. Native subterranean termites live in soil and build mud tubes. Formosan termites are also subterranean but form much larger colonies and can nest above ground where moisture allows. Drywood termites live inside wood without soil contact and leave small, hard pellets. Each calls for a different approach, so the inspector identifies the type from the insects themselves, their wings, the shape of their tubes or the evidence they leave.

If swarmers were found, bringing a few in a sealed bag helps. Wings and bodies can confirm the type.

Termites need moisture, and Houston has plenty. Subterranean termites lose water quickly and depend on moist soil and damp wood. That is why inspectors spend so much time on leaks, drainage and grading. A house with dry soil around it, gutters that carry water away and no plumbing leaks is far less inviting than one with a perpetually wet corner.

A moisture meter helps find damp wood that looks dry from the outside. High readings near a baseboard or door frame are a reason to look closer.

Many Houston home sales include a wood destroying insect inspection. Lenders, buyers or sellers may ask for one. The inspector records any active infestation, evidence of past infestation, visible damage, prior treatment evidence and conditions that encourage termites. Buyers should read the report carefully and ask questions about anything marked, including areas that could not be inspected.

A report describes what was visible on the day of the inspection. It is not a guarantee that no termites are present in hidden areas.

No inspection sees through walls, under floors or inside slabs. Furniture, stored items, carpet, paneling, insulation and landscaping can all hide evidence. Inspectors note what they could not reach. If you know of an area with past problems, such as a bathroom that leaked years ago, mention it so they can look harder there.

Clear access to the garage walls, under sinks and to the attic and crawlspace openings. Move stored boxes a foot or two away from walls where possible. If you collected swarmers or wings, have them ready. Make a short list of where you saw signs and when. Keep pets indoors or away from the inspector's path.

If no activity is found, the inspector may still recommend fixing conducive conditions, such as pulling mulch back or repairing a leak. If activity is found, ask which termite it is, how widespread it appears and what treatment approaches fit. Ask for the plan in writing, along with any warranty or monitoring terms and the license number of the business and applicator.

In a humid climate with active termites, many owners have the house inspected regularly, especially if it has been treated before, has a crawlspace, or sits in an older neighborhood with big trees. Ask the professional what interval they suggest for your house.

Most Houston houses built after the Second World War sit on concrete slabs, and many owners assume a slab keeps termites out. It does not. Concrete shrinks as it cures and moves as clay soils swell and dry, so most slabs develop hairline cracks over the years. Termites can squeeze through gaps far narrower than a pencil. They also follow plumbing pipes up through the slab, travel through expansion joints between the house slab and the garage or patio, and climb the exposed slab edge behind shrubs and mulch.

On a slab home, the inspector concentrates on those entry points. Inside, they look at bathrooms, where many homes have a bath trap, an open box of soil under the tub drain that was left so plumbers could connect the drain. Bath traps are a favorite termite entry. In the garage, they check the joint between the garage slab and the house slab and the bottom of the wall plate. Outside, they look for spots where soil or mulch hides the slab edge, because termites crossing there can reach the wall framing unseen.

Many Houston houses are brick veneer over a wood frame. Between the brick and the framing is a narrow air gap, and at the bottom of the wall are small weep holes that let moisture drain. Termites can build tubes inside that gap, invisible from the outside, and reach the wood frame without ever crossing an open surface. Inspectors look for tubes emerging from weep holes, for soil piled against the brick ledge and for damage along the inside of exterior walls. If the brick ledge is buried under soil or mulch, they will usually recommend lowering the grade so the ledge is visible.

Garages are often where termites first enter. Stored cardboard boxes, lumber and paper against walls give them food and cover, and the joint between garage and house slabs is an easy route. Detached garages, sheds and garage apartments are separate structures with their own risks. Ask the inspector to include outbuildings if you want them covered, and clear stored items away from walls before the visit.

Formosan termites can live above ground if they find a steady supply of water, such as a slow roof leak, a leaking air conditioning drain pan or a plumbing leak in a wall. They build carton nests, a papery material made from chewed wood, soil and saliva, inside walls, attics or hollow spaces. An inspector who checks the attic looks for carton, damp decking, stains around vents and mud on rafters. Formosan activity above ground changes the treatment plan, because a soil barrier alone may not reach a nest that no longer depends on the soil.

Termite inspections and treatments in Texas are part of structural pest control, regulated through the Texas Department of Agriculture's Structural Pest Control Service. ^[2] Ask for the business license and the individual's license number when you call. If the inspection is for a home sale, confirm that the inspector will complete the report your agent or lender needs. A general home inspector may note signs of termites, but a structural pest control professional identifies termites and recommends treatment.

Inspectors usually describe findings in four groups: active infestation, evidence of a past infestation, visible damage, and conducive conditions. Active means live termites or fresh, rebuilt tubes. Past evidence might be old, dry tubes or old damage that shows no current activity. Visible damage is described by location. Conducive conditions are things like wood touching soil, leaks and mulch against the slab. A house can have past evidence and damage without current activity, especially if it was treated before. Ask the inspector to point out each finding during the walk-through.

If the house has been treated before, find the paperwork: the date, the method, the product and any warranty or monitoring agreement. Some treatment warranties can be transferred to a new owner. Drill marks on patios and driveways near the foundation and bait stations in the yard are physical clues to past treatment. Tell the inspector what you know, because it affects how they interpret old tubes and damage.

Moving into a Houston house is a good time for a baseline inspection, even if one was done for the sale. You can ask more questions, see the crawlspace or attic for yourself and learn which conditions to keep an eye on. Knowing where the bath traps, weep holes and expansion joints are makes it easier to watch for signs between professional visits.

Many inspection findings are things you can address without a pest professional. Pull mulch and soil down so a few inches of the slab edge or the brick ledge are visible. Repair dripping hose bibs and redirect air conditioner condensate lines away from the foundation. Add downspout extensions that carry roof water away from the house. Move firewood, lumber and stored boxes away from walls. Separate wooden fences from the house with a small gap or a metal connector. Each change makes the house less inviting and makes future tubes easier to spot.

Ask whether the inspection includes the attic, crawlspace and outbuildings. Ask whether you will receive a written report and, for a sale, which form will be used. Ask how they identify the termite type and whether they will explain conducive conditions. Ask for the business and individual license numbers. Ask how long the inspection should take so you can plan access.

Houston's tropical storms and flash floods change the picture around a house. Floodwater can wash away or bury treated soil, leave mud and debris against foundations, and soak wall framing for days. Roof damage lets rain into attics, giving Formosan termites the steady moisture they need to nest above ground. After a flood or significant roof leak, an inspection helps catch new activity early. Point out where water entered, how high it rose and what was replaced, so the inspector can look harder at those spots. If drywall, insulation or flooring was removed during flood repairs, that is a rare chance to see wall framing before it is covered again, and a good moment to ask for a look.

A kitchen or bathroom remodel opens walls and floors that are normally hidden. Before new cabinets, tile or drywall go in, have a termite professional look at the exposed framing, bottom plates and subfloor. Damage found then can be treated and repaired while access is easy. Ask contractors to stop and call if they find galleries, mud in the wood or live termites. A remodel can also disturb treated soil, for example when a new plumbing line is trenched under the slab, so ask whether the area should be retreated afterward.

An inspection can be done at any time of year, but timing can help. In spring, swarms reveal colonies that might otherwise stay hidden, so many owners book inspections then. In summer and fall, termites remain active in Houston's heat, and inspections can find feeding activity. If you are buying a house, schedule the inspection early in the option period so there is time for follow-up. If you saw swarmers, book soon while the signs are fresh and you still have samples.

Inspectors need to walk the full perimeter, enter the garage, look under sinks and reach attic and crawlspace openings. Unlock side gates, secure dogs, and make sure someone can let the inspector into every area. If an area stays locked or blocked, it will be noted as not inspected, which matters especially for a sale report.

Write down dates and places where you saw swarmers, tubes or damage, and show photos you took. These notes guide the inspector to the right spots quickly.