What a Real Pest Inspection Looks For (Room by Room)

You booked the inspection because you saw something you did not like. Maybe it was a few ants in the kitchen that kept coming back no matter how clean you kept the counters. Maybe it was droppings in a pantry, a strange smell near a baseboard, or a neighbour mentioning mice in the street. Or maybe you are buying a house and the inspector is part of doing the job properly before you sign anything. Either way, you probably have the same question most homeowners have on the morning of the visit. What is this person actually going to do in my house?

A real pest inspection is slower and quieter than people expect. Nobody arrives with a fogger and starts spraying every corner. A good inspector spends most of the visit looking, touching, tapping, and taking notes. They open cupboards, crouch under sinks, lift attic hatch covers, and walk the outside of the house twice if they need to. The spraying, if any treatment is needed at all, comes later, after they know what they are dealing with and where it is living.

This guide walks you through what a proper inspection looks like, room by room, so you know what to expect, what is normal, what is a sign of a thorough job, and what should make you suspicious. You will also learn how to prepare so the inspector can actually reach the places that matter, and what a useful written report should say when they leave.

First, clear up a common misunderstanding. A pest inspection is a diagnosis, not a treatment. The inspector's job on this visit is to find out whether pests are present, which pests they are, how far the activity reaches, and what conditions in your house are helping them. That is a different job from treating a problem, and mixing the two up is how homeowners end up paying for a spray they did not need, or missing a nest that a spray never reached.

A thorough inspector will ask you questions before they start looking. When did you first notice something, and where? What time of day do you see activity? Have you seen droppings, damage, or live insects, and can you show them where? Have you had leaks, a roof repair, or work done recently that opened up a wall or a floor? Those answers narrow the search enormously. If you saw ants only at night in one bathroom, that points somewhere different from ants marching across a kitchen counter at noon.

What an inspection is not: it is not a guarantee that your house is pest free forever, and it is not an x-ray. An inspector cannot see inside a sealed wall or under a concrete slab. What they can do is read the evidence that pests leave behind, check the places pests are most likely to hide, and tell you honestly where they could and could not look. If an inspector claims they checked everywhere and found nothing, but they never opened the attic hatch or looked in the crawlspace, that claim is worth very little. Access matters, and a good report says plainly which areas were inspected and which were not reachable.

Most homeowners can do a useful first look themselves, and this guide will help you do that too. But there is a line worth respecting. Spotting droppings in a pantry is your job if you want to catch things early. Identifying the species, tracing it back to a nest, and deciding on a treatment plan is where a pro earns their fee. If you are at the stage of wondering whether you need help at all, a look at what professional pest control covers in your home will give you a sense of how an inspection fits into the bigger picture.

You can tell a lot about an inspector from what they carry in. A torch is the single most important tool, and not a phone light. A proper torch throws a strong, focused beam into dark corners, under sinks, and along joists, where a phone light just washes everything out. Expect a torch, a probe or screwdriver for tapping and gently testing wood, a mirror on a stick for seeing behind pipes and into tight voids, and a moisture meter for checking whether wood or plaster is damp behind the surface.

The moisture meter deserves a mention because it explains so much of what an inspector does. Many pests follow dampness. Cockroaches, ants, silverfish, and wood-destroying insects all do better in moist conditions, and a leak you never noticed can be the reason a colony settled where it did. The meter lets the inspector find damp wood or plaster that looks perfectly dry on the surface, and that damp patch often points straight at the source of the problem, a slow pipe leak, condensation, or water tracking in from outside.

Some inspectors carry a borescope, a thin camera that can peek into a wall void through a small opening, and sticky monitors or traps that they leave in place to catch evidence over the following days. Others use a simple ladder for the attic and a kneeling pad for crawlspace work, which is a good sign in itself. An inspector who is willing to get on their knees and crawl is an inspector who will actually see things. One who stays standing in the middle of each room and glances around is not inspecting, they are visiting.

What they should not do on an inspection visit is start spraying. If someone arrives, does a five minute walkthrough, and immediately starts fogging rooms, you have not had an inspection. You have had a sales call with a spray gun. A real inspection ends with findings and a plan, and any treatment is discussed and agreed afterwards, not sprung on you mid-visit.

The kitchen gets checked first in most houses, and for good reason. It has food, water, warmth, and dozens of hiding places packed into a small area. An inspector will start under the sink, because that cabinet combines plumbing, darkness, and often a slow drip nobody has noticed. They will look at the pipe entries where water lines and drain pipes pass through the wall, check for droppings, and feel for dampness in the cabinet floor. A warped or stained cabinet base is a clue, not just a cosmetic flaw.

Next comes the pantry and food storage areas. The inspector will look at shelf corners, the tops of wall units, and the gaps behind the fridge and cooker, places where crumbs collect and where cockroaches and pantry moths settle. They will check the seals on cupboard doors, because a door that does not close properly is an open invitation, and they will look for the small signs people miss: tiny droppings that look like ground pepper, webbing in a bag of flour, or a faint, musty smell that hangs around a particular cupboard.

Appliances get attention too. Behind the fridge, the warmth from the motor and the drip tray underneath create a comfortable harbour for cockroaches. Under the dishwasher, a slow leak can rot a floorboard and feed a colony for months. Around the cooker, grease build-up draws ants and roaches alike. A good inspector will pull appliances out a little way where it is safe to do so, or at least shine a torch into the gaps, rather than just glancing at the front panels.

What you can do before the visit helps a lot here. Clear the space under the sink so the inspector can actually get in there. Pull the bin out, move the cleaning bottles to one side, and leave the cabinet empty if you can. If you know you have seen activity in a particular cupboard, say so and leave it as you found it. Cleaning away all the evidence before the inspector arrives is like tidying a crime scene before the detective gets there. A few droppings in place are far more useful than a spotless shelf and a vague description.

Bathrooms look clean and sealed, but they are full of pest habitat. Every bathroom has plumbing running through walls and floors, and every plumbing run has gaps where pipes pass through timber or plaster. Those gaps are highways for cockroaches, ants, and silverfish, and the constant moisture makes the whole room attractive.

An inspector will check under each basin, around the bath panel, and behind the toilet, especially where the toilet meets the floor. They will look at the sealant around baths and showers, because cracked or missing sealant lets water into wall voids, and they will check ventilation. A bathroom with no working extractor fan, or a fan that vents into the loft instead of outside, stays damp for hours after every shower, and that dampness is exactly what silverfish and mould-loving pests want.

They will also look at the little things: the gap under the bathroom door, the overflow pipe, the access panel behind a bath if there is one, and any boxed-in pipework. Boxed-in sections are a favourite hiding place precisely because homeowners never open them. If you have an access panel, make sure it can be opened on the day. If it is painted shut or screwed down with unusual fixings, mention it so the inspector can plan around it rather than discovering it halfway through.

One judgement call worth making yourself: if you only ever see insects in one bathroom and nowhere else, tell the inspector that plainly. A single-room pattern often points to a local source, a leak in that bathroom, a gap in that room's plumbing, or a nest in the wall behind it, rather than a whole-house problem. That distinction can save you a whole-house treatment you never needed.

Bedrooms and living rooms are where homeowners are most surprised by findings, because these rooms feel clean and lived in. Pests do not care. Bedrooms offer warmth, undisturbed corners, and in the case of bed bugs, a food source that sleeps in the same place every night. Living rooms offer soft furnishings, carpet edges, and the gaps behind skirting boards.

In a bedroom, a careful inspector will check the bed frame, especially joints and screw holes if bed bugs are suspected, the seams of the mattress, bedside tables, and the skirting boards. They will look inside wardrobes, along the top of the wardrobe frame where dust and insects collect, and behind any furniture that sits against an outside wall. Carpet edges are a classic hiding place for carpet beetles and their larvae, so expect the inspector to lift a corner of carpet or check along the tack strip where the carpet meets the skirting.

In living rooms, the focus shifts to soft furnishings, curtains, and the areas around fireplaces and radiators. Chimney breasts and fireplace surrounds can harbour insects that come down from the roof void, and radiator pipes passing through floors create gaps worth checking. The inspector will also look at any houseplants, because fungus gnats and other small flies often start in overwatered pots, and at pet bedding areas, which can be a source of flea activity even when the pet itself looks clean.

Clutter is the enemy of a good bedroom inspection, and this is the room where preparation makes the biggest difference. You do not need to deep clean or move every piece of furniture. But pulling beds a little way from the wall, clearing the floor around bedside tables, and making sure wardrobes can be opened will let the inspector see what they need to see. If there is a room you have been avoiding because you suspect something is in there, that is exactly the room to open up first.

If your house has a basement or a crawlspace, this is where the inspection earns its money. These spaces hold the sill plates, rim joists, foundation walls, and pipe runs that connect your house to the ground, and they are where many pest problems start. An inspector who skips the crawlspace has skipped the most important part of the job.

Down here, the inspector is looking for several things at once. Mud tubes on foundation walls or piers point to subterranean termites travelling between soil and wood. Frass, the gritty sawdust-like debris that carpenter ants push out of their galleries, collects on sills and joists below a nest. Droppings along joists or on top of stored boxes point to mice or rats using the space as a runway. And moisture, standing water, condensation on pipes, or damp insulation, explains why any of them are there in the first place.

They will also check where wood touches soil or concrete, where pipes and cables enter the building, and where vents or access hatches have gaps. A crawlspace vent with a broken grille is an open door for rodents. A gap around a gas line or a dryer vent is a highway for mice. These entry points are small, often no wider than a pencil for a mouse, but an experienced inspector spots them quickly because they know the usual routes.

The inspector should also note the general condition of the space: whether insulation is sagging or damaged, whether stored items are sitting directly on the floor, and whether there is standing water or a musty smell that suggests drainage trouble. That context matters, because a pest problem in a damp, cluttered crawlspace will keep coming back until the damp and the clutter are dealt with, no matter how many treatments you pay for.

Clearing a path matters here more than anywhere. If the crawlspace hatch is blocked by boxes, or the basement is packed floor to ceiling, say so in advance or move what you can. An inspector cannot inspect a space they cannot enter, and a report that says "crawlspace not inspected due to access" leaves the biggest question in your house unanswered.

Attics are where homeowners least want to look, and pests know it. Roof voids are warm in summer, sheltered in winter, and rarely disturbed, which makes them ideal for rodents, squirrels, bats in some regions, and insects that come in through roof gaps. A good inspector will get up there, with a torch and a ladder, and spend real time looking.

Up in the loft, the inspector will check the insulation for tunnels, droppings, and nesting material. Rodents flatten and tunnel through insulation, and their droppings collect along joists and on top of stored boxes. They will look at the eaves and the points where the roof meets the walls, because those junctions are a common entry route, and at any vents, soil pipes, or cables that pass through the roof, where gaps let pests in and let warm air out.

They will also check for signs of insects: wasp nests in the eaves, wood damage on rafters or purlins, and frass below timber that suggests wood-boring insects. In houses with a history of roof leaks, they will look for damp timber and staining, because damp roof wood is a magnet for several pests at once. If you have heard scratching or scurrying above your ceiling at night, tell the inspector exactly when you hear it and in which part of the house, because the timing and location narrow down the species considerably.

Safety matters up here. A responsible inspector will not walk on plasterboard ceilings or put weight on joists they cannot see clearly, and they will tell you if part of the loft is unsafe or inaccessible. That honesty is a good sign, not a weakness. A report that notes "loft partially inspected, far eaves not reachable" is far more useful than a confident claim that the whole roof void was checked when it plainly was not.

The garage is often treated as a separate world from the house, but pests do not see it that way. A garage shares walls, roofs, and often a ceiling void with the living space, and it is full of harbourage: cardboard boxes, stored timber, bags of pet food, and the gaps around the garage door itself. An inspector will check the door seals, because a garage door that does not close flush to the floor leaves a gap rodents walk straight through, and the corners where the walls meet the floor, where droppings collect first.

Stored items get a look too, not because the inspector is nosy, but because cardboard boxes are nesting material and pet food in a torn bag is a buffet. If you store firewood in the garage, expect it to be checked, and expect advice to move it away from the house wall, because firewood stacked against a wall is one of the most common ways wood-destroying insects and ants get a foothold near the structure.

Outside, the inspector walks the full perimeter, and this part of the visit is just as important as anything indoors. They will look at soil levels against the walls, because soil built up above the damp-proof course gives termites and ants a bridge straight over a barrier. They will check drainage, gutters, and downspouts, because water pooling near foundations creates the damp conditions pests love. They will look at the condition of vents, air bricks, and utility entries, and at vegetation touching the house, because shrubs and tree branches that brush the walls give ants and rodents a bridge over treated ground and into the roof.

They will also look for the evidence pests leave outside: burrows near foundations, droppings along walls, rub marks where rodents run the same route repeatedly, and nests under eaves or in outbuildings. If you have had problems before, or you live in a region where a particular pest is common, local knowledge shapes this part of the inspection. A technician who works with pest problems across Texas, for example, will read the exterior of a house with a different seasonal and species context from someone working in a cooler, drier climate, and that local reading is part of what you are paying for.

By the end of a good inspection, the inspector has built a picture from small signs, and it helps to know what those signs are so the report makes sense when you read it. Droppings are the most common clue, and their size, shape, and location tell a story. Small, dark pellets in a kitchen cupboard point one way. Larger droppings along a garage wall or in a loft point another. Fresh droppings look dark and moist, older ones dry and crumbly, and that difference helps the inspector judge whether activity is current or historic.

Frass and mud tubes are wood-pest clues. Frass is the debris carpenter ants push out of their galleries, a gritty, sawdust-like pile that reappears in the same spot after you clean it up. Mud tubes are the narrow soil tunnels subterranean termites build on foundations and walls to travel in the moist conditions they need. If you want to understand how those clues separate one wood pest from another, the comparison of termites and carpenter ants side by side explains the debris, the damage patterns, and the insects themselves in plain terms.

Entry points are another major category. A gap around a pipe, a broken vent grille, a crack in a foundation, a door that does not seal, all of these are noted, often with photos, because sealing them is part of the long-term fix. An inspector who only notes the pests and never mentions entry points is giving you half a report. The pests will come back through the same gaps unless those gaps are dealt with.

Moisture readings, staining, and damage round out the picture. A damp patch under a sink, a stained ceiling below a bathroom, soft wood in a window frame, all of these are conditions, not just damage. They explain why pests chose your house and what needs to change so they do not choose it again. A good inspector connects those dots for you, rather than handing you a list of pest names with no explanation of what is feeding the problem.

Smells and sounds count too, even though they never appear in a photo. A musty, oily smell in a cupboard can indicate a cockroach harbourage. A sweet, sickly smell in a wall void can indicate a large ant colony or a dead rodent. Scratching at night in a ceiling points to rodents in the loft. A good inspector will ask you about smells and sounds, and will note them in the report, because they are evidence even when they are hard to photograph.

When the inspection is done, you should get a written report, not just a verbal "you have ants, we can spray next week." A useful report names the pest or pests found, or says plainly that no evidence of a particular pest was found. It says where the evidence was, room by room, with photos where possible. It lists the conditions that are helping the pests, such as leaks, gaps, or stored food. It notes which areas were inspected and which were not accessible, and it gives a recommended next step with options, not a single take-it-or-leave-it treatment.

Be wary of a report that is vague, that lists pests without locations, or that jumps straight to a treatment plan without explaining the findings. Be equally wary of a report that uses frightening language to push an immediate decision. Phrases like "severe infestation" should come with evidence: photos, locations, and an explanation of how widespread the activity looks. A genuine problem deserves a clear explanation, not a scare story, and a reputable inspector expects you to ask questions and even to get a second opinion.

The report should also separate current activity from old damage. Finding old termite damage in a joist does not necessarily mean termites are active today, and finding a few old droppings in a loft does not mean you have a current rodent problem. A good inspector tells you which is which, because the treatment for an active colony is very different from monitoring an old, inactive site. If the report does not make that distinction, ask about it before you agree to anything.

Finally, the report should tell you what you need to do, not just what the company will do. That might mean fixing a leak, clearing a crawlspace, sealing a gap, or changing how food is stored. Those homeowner actions are often the difference between a treatment that lasts and one that needs repeating, and an inspector who spells them out is doing you a genuine favour.

Preparation is simple, and it makes a real difference to how much the inspector can see. Clear access to the places that matter: under sinks, around the boiler or water heater, the attic hatch, the crawlspace hatch, and the areas behind large appliances where it is safe to move them. You do not need to empty every cupboard or move every stick of furniture, but a clear path to the key spots saves time and means nothing important gets skipped.

Leave evidence where it is. If you found droppings, a dead insect, or a suspicious pile of debris, do not clean it all away before the visit. Take a photo, note the date and the room, and leave the evidence in place if you can. If you have already cleaned it, say so, and show the inspector your photo. A photo with a coin or a ruler next to the evidence for scale is surprisingly useful, because size is often what separates one species from another.

Write down what you have seen before the inspector arrives. When did you first notice activity, where exactly, and at what time of day? Has it changed, gotten worse, or moved to a new room? Have you used any sprays or traps yourself, and what happened when you did? That history saves the inspector guessing and helps them focus on the right rooms first. It also stops you forgetting details in the middle of the visit, which happens to everyone.

Keep pets secured and let the inspector know about any allergies, asthma in the household, or areas you would rather they did not enter without asking. If there are rooms with valuables, locked storage, or tenants, sort access in advance so the visit is not cut short. And if you are in a larger city where pest pressure and species vary by neighbourhood, it is worth noting that a local technician's reading of your house will reflect that local picture, which is why homeowners comparing pest control options for Houston homeowners often find the inspection conversation shaped by the species and conditions common in that area.

Now you know what a good inspection looks like, the warning signs are easier to spot. The biggest one is speed. A thorough inspection of an average house takes time, usually well over half an hour and often longer for a larger or older property. If someone is in and out in ten minutes, they have not looked in the places that matter, no matter how confident they sound.

Watch for an inspector who never opens a cupboard, never lifts an attic hatch, never crouches under a sink, and never walks the outside of the house. Watch for one who starts spraying before explaining anything, or who pressures you to sign a treatment agreement on the spot before you have seen a written report. Pressure is a sales tactic, not a professional standard. A genuine finding will still be genuine tomorrow, and you should have time to read the report and ask questions.

Be suspicious of a diagnosis made without evidence. If an inspector tells you that you have a specific pest but cannot show you droppings, damage, a live insect, or a photo of any of them, ask what the diagnosis is based on. Sometimes the evidence is in a wall void or a loft you cannot easily see, and a good inspector will explain that and show you photos. But a pest name with no evidence behind it is a guess, and you should not pay for a treatment based on a guess.

Also watch for an inspector who ignores conditions. If they find cockroaches in a kitchen but never mention the leak under the sink, or they find ants but never look at the gaps around the pipes, they are treating symptoms, not causes. The problem will return, and you will be paying again. A good inspector talks about moisture, entry points, and storage just as much as they talk about the pests themselves, because those are the levers that actually stop a problem coming back.

Finally, be wary of anyone who claims your house is completely pest free after a short visit that skipped the attic, the crawlspace, or the exterior. No honest inspector guarantees a negative. They report what they found, where they looked, and what they could not access, and they leave you with a clear picture, not a false sense of certainty.

When the report lands in your hands, read it before you agree to anything. Check that the pest is named, the locations are specific, and the evidence is described. Check which areas were not accessible, and ask whether a follow-up visit is needed to cover them. Ask how the recommended treatment reaches the nest or colony, not just the pests you can see, and ask what you need to change around the house to stop the problem returning.

If the report says no current activity was found, that is useful news, not a wasted visit. It gives you a baseline, and it tells you which conditions to watch, a leak to fix, a vent to repair, a gap to seal. Keep the report, note the date, and do a quick check of the same spots yourself every few months. Catching the next problem early is far cheaper and far less stressful than discovering it late.

If treatment is recommended, get the plan in writing, with the areas to be treated, the follow-up visits included, and the homeowner actions expected of you. A clear plan protects both sides, and it lets you compare options fairly if you decide to get a second opinion. And if anything in the report is unclear, ask. A good inspector would rather explain a finding twice than leave you guessing, because a homeowner who understands the problem is far more likely to fix the conditions that caused it.

Start today with your own walkthrough, even before you book anyone. Grab a torch, check under the sinks, look along the skirting boards, and peek into the loft if you can do it safely. Note anything that looks like droppings, debris, or damage, and take a photo. That simple habit, done a couple of times a year, is the best early warning system a house can have, and it means that when an inspector does visit, you will already know which questions to ask.