Is it rats or squirrels in my attic?

Timing is the quickest test. Squirrels are active in daylight and go quiet at night. Roof rats do the opposite, with the heaviest movement in the hour after dark and again before dawn. Droppings differ too: rat droppings are dark, pointed at the ends and about half an inch long, while squirrel droppings are shorter and rounded.

Why can they get in when the house looks sealed?

A roof rat fits through a gap the size of a quarter, and a mouse through one the size of a dime. The openings are rarely obvious from the ground. The usual culprits are the corner where a soffit returns into a wall, the gap behind a fascia board, an unscreened gable vent, a torn plumbing boot and the space where the A/C lineset passes into the wall.

Can you just put bait in the attic?

We would rather not. A rat that eats bait dies wherever it happens to be, which is often inside a wall cavity where you will smell it for two weeks and cannot reach it. Trapping puts the animal somewhere we can remove it. Exterior bait stations have a role on some properties, and we discuss that at the inspection.

How long does the whole job take?

Trapping usually runs one to two weeks with checks in between. Sealing is normally a single day once the trapping has stopped producing, though a large roof line or a tile roof can take two. We wait for the trap count to drop to zero before sealing, so nothing gets closed inside the attic.

Do I need the insulation replaced?

Not always. Light droppings on joists can be cleaned and sanitized. Where rodents have been in for months, the insulation gets flattened, soiled and saturated with urine, and at that point it has lost its R-value as well as being a mess. We photograph the attic so you can see what you are deciding about.

Will trimming my oak tree fix it?

It removes the easiest route. Roof rats are strong climbers and will happily use a branch, a fence top, a cable run or a trellis, so trimming limbs back several feet from the roof helps a lot but does not seal the house on its own. Exclusion is what closes the door. Trimming makes the door harder to reach.

Rodent Removal and Exclusion in Tampa, FL

Rodent exclusion in Tampa runs $450 to $1,600, set by how many openings the roof line has rather than by the number of rats. Scratching over a bedroom ceiling after dark is almost always roof rats traveling the soffit. Trapping clears what is in the house. Sealing the gaps is what keeps it clear, and skipping that part is why the noise comes back.

Signs you need this

Scratching or running noises over the ceiling after dark, worst at dusk and before dawn

Droppings along attic joists, on top of ductwork or behind the pantry

Gnawed corners on food boxes, or shredded insulation and cardboard

A greasy dark smear line along a soffit edge, a pipe or a roof truss

Oak or palm limbs touching the roof or hanging over it

A citrus tree dropping fruit with the flesh eaten out and the rind left

Why it is nearly always roof rats

The rat that lives in Tampa attics is the roof rat, sometimes called the black rat or the fruit rat. It is a climber by nature. It nests high, travels along branches, fences, cable runs and the soffit line, and it rarely burrows. Norway rats exist here, but they stay low, around drains, dumpsters and burrows at ground level, and they are not usually the thing running across your bedroom ceiling.

That difference sets the whole job. Ground level bait stations do little for an animal living twenty feet up. The work is at the roof line.

Where they get in on a Tampa house

We start at the corners where a soffit returns into a wall. On a lot of local builds that junction is left with a finger-width gap, and it is the single most common entry. Then the fascia to soffit seam where a board has warped, gable and dormer vents with a torn or missing screen, the space under the first course on a barrel tile roof, ridge vent ends, plumbing vent boots that have split in the sun, the A/C lineset penetration, the dryer vent flap, and the top corners of a garage door where the seal has shrunk.

Older homes in Seminole Heights and South Tampa add a few: knee wall gaps, original wood soffits that have rotted at the joint, and pier foundations with open vents that let animals under the floor.

Sealing that actually holds

Rodents chew. Anything soft gets chewed. Every opening we close has a metal component: galvanized hardware cloth cut oversize and screwed in, sheet metal flashing behind a fascia, or a purpose made vent guard. Foam and sealant go in behind or around that to close air gaps and keep the repair tidy, never as the barrier itself.

Vents that have to keep venting get screened rather than blocked. A gable vent still needs airflow, so the fix is a stainless or galvanized screen fitted from behind. Sealing airflow off an attic in this climate creates a moisture problem that costs more than the rats did.

What the roof line and the trees are doing

Carrollwood and Seminole Heights both sit under a mature live oak canopy, and a limb resting on or above a roof is a free ramp. Six to eight feet of clearance is the usual target. The same applies to queen palms, bottle brush and any trellis or vine running up a wall. Utility drops and cable runs into the house are another road, and where those enter the wall there is often a gap large enough to walk through.

Fruit is the other draw. A backyard citrus, loquat or mango dropping ripe fruit will hold a population on the property, so picking up windfall daily during the season makes a real difference to how long the attic stays quiet.

How the work runs

Inspect the attic and the full roof line

We look for droppings, runways, smear marks and nesting, then work the outside of the house with a ladder to find every opening. Soffit and fascia junctions, gable vents, roof tile edges, plumbing boots, A/C chases and the garage door corners are the usual list.

Trap out what is inside

Snap traps set on the runways in the attic, checked and reset over one to two weeks. Bait alone inside a wall or attic is a poor choice, because something dies where you cannot reach it.

Seal the entry points

Galvanized hardware cloth, sheet metal, mortar and sealed vent screens. Expanding foam on its own gets chewed straight through, so it only ever fills behind a metal barrier.

Cut back the highways

Roof rats reach the roof along branches and cables. We point out which limbs need trimming back and where a line needs a guard, and we recheck after.

Follow up and clean up

We come back to confirm the attic is quiet, and we quote insulation removal, sanitizing and replacement separately where contamination is heavy.

What it typically costs

Job	Typical range
Inspection and trapping program Set, check and reset traps over one to two weeks	$300 to $700
Rodent exclusion, typical home Sealing soffit, vent, roof line and utility openings	$450 to $1,600
Single entry point repair One gable vent, one plumbing boot or one soffit return	$125 to $300
Attic sanitizing and deodorizing After trapping, where droppings are widespread	$350 to $900
Insulation removal and replacement Quoted by attic square footage and depth of contamination	$1.50 to $4.00 per sq ft
Annual exclusion check Re-inspection of sealed points and the roof line	$125 to $250

Typical ranges for Tampa and the surrounding area , reviewed September 2026. Every quote is written and fixed before work starts.