What Do New Homeowners Need to Know About Pest Control?

Last updated: May 26, 2026

By Pest Control Pricing Team

Pest control for a new home runs $150 to $300 for an initial treatment, $100 to $300 per quarter for ongoing service, and $75 to $200 for the pre-closing pest inspection most mortgage lenders require. Schedule the inspection before signing the purchase agreement, book the initial treatment before move-in day if the home is vacant, and lock in a quarterly plan within the first 30 days of ownership. Prevention runs roughly 5 to 10 times less than reactive treatment once termites, carpenter ants, or rodents establish inside finished walls. This guide walks through the inspection, the closing paperwork, the first-month treatment timeline, the full cost of pest control, and the prevention work that protects your equity from day one.

Why new homeowners should treat pest control as a closing-week priority

Empty houses are pest magnets. With no foot traffic, no air movement, and no one running garbage disposals or flushing rarely-used toilets, dormant cockroach eggs hatch, mice settle into wall voids, and termite colonies expand undisturbed. The 30 to 90 days between the seller moving out and you moving in is often when an existing problem accelerates from "manageable" to "established." Mortgage lenders know this, which is why FHA and VA loans require a Wood Destroying Insect report (NPMA-33 form) before they fund.

The financial math is unforgiving. A pre-closing termite inspection costs $75 to $200; a sub-slab termiticide treatment after termites breach drywall costs $1,200 to $3,500; structural repair to load-bearing framing damaged by an undetected colony costs $5,000 to $25,000. The same ratio holds for rodents (a $40 exterior bait station maintained quarterly versus $1,500 to $4,000 for sanitizing contaminated insulation), for German cockroaches (a $250 IGR program versus $800 for repeated treatments in an established population), and for carpenter ants (early treatment under $400 versus moisture remediation plus structural repair north of $3,000).

There is also a paper trail issue. Title insurance does not cover pest damage. Standard homeowners insurance excludes infestation as "preventable maintenance." If you skip the inspection and discover active termites 60 days after closing, the cost falls entirely on you. A pre-closing inspection moves that risk to the negotiating table, where the seller is the natural party to pay because they have lived with the property longer. Roughly 1 in 9 inspections in termite-active states (Florida, Georgia, Alabama, Mississippi, Louisiana, Texas, South Carolina, the Carolinas piedmont, southern California, Arizona) finds active infestation or evidence of past damage.

Get a pest inspection before closing

Order the inspection during the standard due-diligence window (typically 7 to 14 days after the purchase agreement is signed). Use a state-licensed pest control operator, not the general home inspector. Pest inspectors hold a separate license through the state pesticide board or department of agriculture (in Texas the TDA, in California the CDPR, in Florida the FDACS, in North Carolina the NCDA&CS). General home inspectors are not trained to spot the difference between an old, treated termite mud tube and active galleries, and they are not authorized to sign the NPMA-33 form that lenders require.

A standard pest inspection runs $75 to $150 for a basic visual report and $150 to $200 for an inspection with moisture meter, infrared, and crawlspace evaluation. For homes with crawl spaces or pier-and-beam foundations, pay for the upgraded version; about 60% of termite damage in those structures hides in the subfloor where visual inspection alone misses it. The inspector should issue the NPMA-33 (or state equivalent like the Texas WDIIR) within 48 hours.

The report covers:

• Active termite infestations (subterranean, drywood, or Formosan, depending on region) and evidence of previous treatment
• Wood-boring beetle damage (powderpost, deathwatch, false powderpost) with active versus inactive determination
• Carpenter ant galleries and frass deposits, typically in moisture-damaged framing
• Wood-decay fungus indicators (white rot, brown rot, soft rot) that signal both moisture problems and the conditions termites need
• Conditions conducive to infestation: wood-to-soil contact under 6 inches, grading that slopes toward the foundation, vegetation against siding, firewood within 20 feet of the house, debris in crawlspace

If the inspection turns up active termites, the seller is the natural party to pay for treatment because the damage predates your ownership. Standard practice in the Southeast and Gulf states is for the seller to pay treatment costs plus a one-year retreatment commitment from the pest control company. In the Northeast and Midwest, where termite pressure is lower, this is more negotiated. For a region-by-region pricing reference, the state-by-state pest control cost page breaks down what each market typically charges.

What pre-closing inspections commonly turn up

Four findings show up repeatedly in real estate transaction inspections. Knowing what each one means at the negotiating table saves money and prevents inheriting problems.

Active subterranean termites. The most consequential finding. Treatment runs $250 to $1,500 for liquid termiticide application (Termidor SC, Termidor HE, Premise, or Taurus SC, all containing fipronil or imidacloprid) and $1,500 to $3,500 for a full Sentricon Always Active bait system installation. Active termites should never be a deal-killer because they are treatable, but they should result in seller-paid treatment plus a transferable bond. Verify that the treatment uses a non-repellent termiticide (fipronil-based products like Termidor) rather than a repellent pyrethroid; non-repellents transfer through the colony and eliminate it, while repellents only displace the colony to an untreated section of the foundation.

Inactive damage with prior treatment record. The home was treated 5 to 20 years ago, the bond expired, and the inspector finds old galleries with no live activity. Negotiate for transfer or renewal of the bond at closing. Bond transfer fees run $50 to $200; establishing a new bond from scratch costs $400 to $1,200 the first year. Structural damage may need carpenter or contractor evaluation if galleries are in load-bearing members.

Rodent activity in attic or crawlspace. Droppings, gnaw marks on framing or wiring, urine staining on insulation, or nesting material. Treatment includes exclusion work (sealing entry points with copper mesh, hardware cloth, and concrete patching) at $250 to $800, baiting program at $150 to $400, and insulation replacement if contamination is significant ($1.50 to $3.50 per square foot of attic). Rodent-damaged wiring is a fire risk and worth checking with an electrician.

Conducive conditions without active infestation. Wood-to-soil contact, missing or damaged crawlspace vapor barrier, vegetation against siding, gutters that drain at the foundation. These are not negotiation items per se, but they predict future problems and inform your prevention work after closing. Budget $300 to $1,200 in the first year to correct them. The spray frequency a home actually needs depends heavily on whether these conditions get fixed in year one.

Your first 30 days: a treatment timeline

Working backwards from move-in day produces the cleanest sequence. The empty-house treatment window is the single highest-leverage opportunity a new homeowner has, because the technician can apply baseboard sprays, crack-and-crevice treatments, and dust applications without working around furniture, food, and pets. Once the moving truck arrives, you will not get this access again for a year or longer.

Day -14 to Day -7 (before closing). Pest inspection complete; NPMA-33 in file with the lender; any treatment items negotiated into the purchase agreement. If active termites were found, the seller's pest control company should complete treatment and issue the retreatment bond before closing. Get the bond paperwork in writing, with the bond number, treatment chemicals used, retreatment terms, and transferability language.

Day -7 to Day -3 (week of closing). Schedule the initial pest control service for the day after closing if the home is vacant. Call two or three companies for quotes; the price for an initial visit plus the first quarterly service should be in the $400 to $700 range. Confirm the company uses materials with public EPA registration numbers and has at least one certified applicator on staff registered with the state pesticide board. Ask whether the company holds NPMA QualityPro certification or GreenPro for reduced-risk programs. The pest control scam patterns guide flags door-to-door operators, unbranded trucks, and pressure tactics that target new owners during the move.

Day 0 (closing day). Take possession. Walk the property with a flashlight and a phone camera. Photograph the crawlspace, attic, electrical panel area, water heater closet, under-sink cabinets, and garage corners. These photos become your baseline for what "clean" looks like and let you spot changes during quarterly visits.

Day 1 to Day 7 (initial treatment week). Initial pest control visit. The technician should perform an exterior perimeter spray (a 3-foot band on the foundation plus a 2-foot vertical band up the siding) using a residual product like bifenthrin (Talstar P), lambda-cyhalothrin (Demand CS), or deltamethrin (Suspend Polyzone). Interior treatment focuses on baseboards in kitchens and bathrooms, plumbing penetrations, electrical outlet voids, and garage floor edges. Dust applications (boric acid or silica-based desiccants) go into wall voids around plumbing chases. A full initial visit takes 60 to 120 minutes for a 2,000 sq ft home.

Day 7 to Day 30 (settle-in window). Set up the quarterly service contract. Review the contract carefully before signing, especially the auto-renewal clause, the cancellation terms, and which pests are covered versus excluded. Termites are almost always excluded from a general pest control contract; they require a separate bond or service. The contract cancellation guide explains how to read the fine print and what fees apply if you cancel early. Apartment buyers in major metros should also check the apartment-specific service rules, because building management often controls common-area treatments.

DIY prevention work that pays off in the first year

Pest professionals do not eliminate the conditions that attract pests; that work is yours. The good news is that exclusion and sanitation work costs almost nothing in materials and produces outsize returns on infestation risk. Budget one weekend for the major items and a few hours scattered across the first month for the smaller ones.

Seal exterior gaps and penetrations. Mice fit through openings as small as a quarter inch; juvenile rats through openings as small as a half inch; German cockroaches through gaps thinner than a credit card. Walk the exterior with a tube of polyurethane caulk (DAP Side Winder, GE Advanced Silicone II, or similar) and seal around every dryer vent, hose bib, gas line penetration, AC line set, electrical service entrance, and utility chase. For gaps larger than 3/8 inch, stuff with copper wool or hardware cloth before caulking; mice gnaw through standard foam but not metal. Total material cost: $35 to $75. Time: 3 to 5 hours for a typical single-family home.

Install door sweeps and threshold seals. The gap under a standard exterior door is often 3/8 to 5/8 inch, large enough for mice, snakes, and most insects. A brush-style door sweep ($8 to $15 per door) closes the gap, and a vinyl threshold replacement ($15 to $40) seals the bottom corners where the door meets the jamb. Garage door bottom seals degrade fastest and are usually overdue for replacement on resale homes; a new seal runs $20 to $50 and takes 30 minutes.

Address moisture sources. Termites, carpenter ants, springtails, silverfish, drain flies, and several cockroach species all track moisture. Fix dripping fixtures, replace failing wax rings on toilets, clear AC condensate lines (a wet/dry vac at the exterior discharge usually solves a clogged line), and reroute downspout extensions so they discharge at least 6 feet from the foundation. In crawlspaces, install a 6-mil polyethylene vapor barrier ($0.40 to $0.80 per sq ft, plus $200 to $600 for professional installation if you would rather not crawl). A properly sealed crawlspace can drop pest pressure by 50% or more in humid climates.

Remove harborage near the structure. Move firewood at least 20 feet from any wall, elevate it on a rack 6 inches above ground, and tarp the top. Cut back shrubs and tree branches so nothing touches the siding or roof; ants, spiders, and rodents use foliage as a bridge. Clear leaf litter from the foundation line; a 6-inch gravel or stone band against the house reduces termite tube construction by removing the moisture and cellulose-rich layer subterranean termites use to forage. Pull mulch back 12 inches from siding and never let it cover weep holes in brick veneer.

Improve interior sanitation systems. Switch to airtight food containers (Cambro, OXO Pop, or similar) for pantry staples; this single change ends most kitchen ant trails within 90 days. Take garbage out daily and use a metal can with a tight lid in the kitchen. Run garbage disposal weekly with ice and citrus peel to dislodge food film that feeds drain flies. Vacuum under appliances monthly; the warm undersides of refrigerators and dishwashers are the highest-pressure cockroach harborage in most kitchens. Pet food bowls should be picked up between feedings, not left out overnight.

A year-one seasonal prevention calendar

Pest pressure follows climate cycles. Aligning your prevention work with the seasonal pattern catches issues before they require professional intervention. The table below assumes a temperate four-season region; in the Gulf Coast and southern Florida, treat the seasonal pattern as compressed (active pest pressure 10 to 11 months per year) and the dormant winter section as more relevant for inspection than for prevention.

Tie the calendar to your real estate calendar. For homes purchased in fall or winter, the first termite swarm season after closing (March to May) is when latent infestations announce themselves; schedule extra vigilance that spring. For purchases in spring or summer, the first fall (September to November) is the highest-risk rodent window; complete exclusion work before October. The best time of year for pest control guide explains how this timing differs by climate zone.

What products a technician applies (and what the labels mean)

Knowing what is sprayed in and around your new home matters for three reasons: pet and child safety, allergy reduction, and contract value. The EPA regulates every pest control product through the FIFRA registration process, and every commercial product carries an EPA Registration Number on the label. Your technician should be willing to share the label and Safety Data Sheet for anything applied; this is required by federal law in most states and by state pesticide board regulations in all of them.

Common active ingredients in residential exterior treatments include bifenthrin (sold as Talstar P, Bifen IT), a synthetic pyrethroid with 30 to 90 day residual; lambda-cyhalothrin (Demand CS, a microencapsulated formulation that holds up to rain better than older liquids); deltamethrin (Suspend Polyzone, with extended residual on porous surfaces); and fipronil (Termidor SC and Taurus SC for termites, Maxforce baits for ants and cockroaches). For interior crack-and-crevice treatments, dust formulations like silica gel (CimeXa) and boric acid (Niban Granular Bait) dominate because they remain effective for months in dry voids and pose lower exposure risk than aerosol sprays.

Termite-specific work splits into two approaches. Liquid termiticide applications use fipronil (Termidor SC, Termidor HE for high-efficiency low-volume systems) or imidacloprid (Premise) applied as a continuous chemical barrier in the soil around the foundation. Bait systems use Sentricon Always Active stations (active ingredient noviflumuron, a chitin-synthesis inhibitor) installed in the soil at 10-foot intervals around the structure. Liquid treatments work faster and cost less initially ($800 to $1,500 versus $1,200 to $3,500), but bait systems require less intrusive installation, do not require drilling through interior slabs, and are typically renewed annually at $250 to $400.

Ask your technician three questions on the first visit: what is the EPA registration number of each product applied, what is the re-entry interval (how long after application before children and pets can be on treated surfaces, typically 0 to 4 hours for residential products), and what is the residual period before reapplication. If a company refuses to disclose any of these, that is a signal to find a different operator. Reputable companies hand you a service ticket that lists every product, application rate, target pest, and treated area. NPMA QualityPro certified firms and Integrated Pest Management (IPM) practitioners go further, documenting non-chemical interventions (sealing, sanitation, traps) alongside the chemical applications. Homes with infants, pregnant residents, or pets benefit from asking for an IPM program designed around pet safety; the cost premium is small (often nothing) and the active ingredients shift toward lower-toxicity options like baits, dusts in inaccessible voids, and exclusion work.

Home warranties, termite bonds, and what your closing paperwork covers

Three documents intersect at the new-home pest control question, and confusing them is a common closing-week mistake.

A home warranty (sometimes called a residential service contract) is a paid annual contract from a warranty company (American Home Shield, Choice Home Warranty, 2-10 Home Buyers Warranty, Old Republic). Standard plans cover mechanical systems and major appliances. They do not cover pest control or termite treatment by default. Some plans offer a pest add-on at $50 to $100 per year, but coverage is limited (typically 4 treatments per year, no termites, no rodent exclusion work, no wildlife or stinging-insect items). A dedicated pest control contract from a pest company gives you broader, more predictable coverage at similar cost.

A termite bond is a contract between the homeowner and a pest control company, separate from any home warranty. It typically guarantees retreatment at no additional cost if termites return during the bond period, and some bonds also include a repair commitment up to a stated dollar amount (commonly $250,000 of structural damage coverage for premium bonds). Bonds attach to the property and are transferable in most cases. At closing, the existing bond (if any) should be transferred to your name with a $50 to $200 transfer fee. New bonds run $400 to $1,200 the first year plus $150 to $350 annually for renewal and inspection.

Homeowners insurance covers sudden, accidental damage. It does not cover pest damage. Insurance carriers consistently classify termite damage, rodent damage, and general infestation as preventable maintenance failure, even when the damage is hidden behind drywall and not visible to the homeowner. Read the standard ISO HO-3 policy form; pest damage is excluded under the "wear, tear, and deterioration" clause. The implication is that the burden of detection and prevention sits entirely with the homeowner, which is the practical reason ongoing pest control service exists.

DIY versus professional service: real cost comparison

Whether to handle pest control yourself or hire a company depends on the pest, the season, and how much your time is worth. The table below compares actual costs across the most common new-homeowner scenarios.

The pattern across scenarios is that DIY makes sense for targeted, low-stakes treatments (kitchen ant baits, mosquito yard sprays, quarterly exterior maintenance after a professional baseline) and rarely makes sense for high-stakes, multi-step work (initial move-in treatment, German cockroach eradication, termite treatment, anything involving electrical or structural cavities). The zip-code level pricing on the same scenarios varies by 20% to 40% by region, with urban Northeast and West Coast metros at the high end and Southeast and South Central markets at the low end.

A realistic year-one budget for a new homeowner in a temperate climate looks like: $150 inspection (closing week), $200 initial treatment (week 1), $150 quarterly visit times 3 ($450 across the rest of year one), $50 to $150 in DIY supplemental supplies (door sweeps, caulk, baits), $0 to $400 for a new termite bond if the home does not have one. Total: $800 to $1,400 for the first 12 months. Years two and beyond drop to $400 to $700 in service plus $100 to $200 in DIY supplies and minor exclusion work.

When to call a professional instead of treating it yourself

Some signals point clearly to professional service regardless of DIY confidence. Stop and call a pest control company when:

• You see swarming termites (winged reproductives indoors near windows or light fixtures), discarded wings on windowsills, or mud tubes on foundation walls or interior slab joints
• You find rodent droppings in living-space pantries or on kitchen counters, which indicates the population has moved out of attic and crawlspace harborage into food-storage areas
• German cockroaches appear in daytime in well-lit rooms; daytime activity for a nocturnal species means the population has outgrown available harborage
• You find carpenter ant frass (sawdust-like piles) below ceiling moldings, window frames, or door frames, which indicates established nesting in framing
• Two or more sightings of the same pest in a 14-day window after you have already treated; the population is reproducing faster than your treatment is killing
• The previous owner's pest control records show repeated callbacks for the same pest, suggesting an established issue the prior treatment did not resolve
• Your home backs onto woods, a creek, a vacant lot, or undeveloped land; the pressure load on the property exceeds what DIY treatment can hold

The threshold for calling a professional is lower in the first year of ownership than in subsequent years, because you do not yet have a baseline for what "normal" looks like on the property. A single mouse dropping in a kitchen drawer in year one might be a leftover from before closing or might be a current incursion; only after building a few months of inspection history can you tell. When in doubt, the $125 to $200 service call buys diagnostic clarity that DIY treatment alone cannot.

Frequently asked questions about pest control for new homeowners