Cost guide
Termite Treatment Cost
Real Maryland pricing for termite inspection and treatment, covering liquid barrier and bait systems for the state's heavy subterranean termite pressure.
Termite treatment in Maryland deals with the eastern subterranean termite, the species that works up from the soil into a structure. Maryland sits in a heavy-to-very-heavy pressure zone, so this is a significant cost category, not a minor one. There are two main treatment approaches priced differently: a liquid soil barrier applied around the full foundation, and a bait system installed in the ground with ongoing monitoring.
Most homeowners start with a wood-destroying insect inspection, which runs $100 to $200 and is often waived or credited if you proceed with treatment. Treatment cost then depends on the size of the home, the linear footage of foundation, the method used, and whether obstructions require drilling. Because Maryland's pressure is so high, a full liquid barrier is the default recommendation, which pushes average costs to the upper end of the national range.
Maryland price ranges
| Item | Baltimore metro | DC suburbs |
|---|---|---|
| Wood-destroying insect inspection | $100 - $200 | $100 - $200 |
| Liquid barrier treatment (2,000 sq ft home) | $2,200 - $6,500 | $2,500 - $7,000+ |
| Bait system installation | $400 - $3,000 | $500 - $3,000 |
| Annual protection bond + monitoring | $500 - $2,000 | $600 - $2,000 |
Liquid barrier pricing scales with the linear footage of foundation treated and the home's size. Smaller or partial treatments run lower, in the $325 to $1,300 range. Structural damage repair is a separate cost, generally $600 to $3,000 or more.
What drives the cost
- Linear footage of foundation, the main driver for a liquid barrier
- Treatment method: liquid barrier versus bait system versus a combination
- Home construction: slab, crawl space, or basement, and access to the foundation
- Whether obstructions like patios or additions require drilling
- Severity and extent of an active infestation
- Baltimore metro versus the DC suburbs, which run higher
A liquid barrier creates a treated zone in the soil around the full foundation and is the standard recommendation in Maryland given the heavy pressure. A bait system costs less up front for installation but adds ongoing monitoring fees, and it is most often used as a supplement here rather than the whole program.
Most Maryland operators offer a renewable annual protection bond with monitoring, generally $500 to $2,000 a year. Given how reliably termites return in Maryland, that ongoing protection is worth weighing. Repairing termite damage is a separate job from treatment, so a quote for active termites should make clear what is treatment and what is repair.
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Related pests
Subterranean Termite
The most destructive wood-destroying insect in North America. It lives underground and attacks wood from below, invisibly, for years before homeowners notice.
Read moreCarpenter Ant
A large black ant that excavates wood to nest. It does not eat the wood, but a long-established colony can cause real structural damage.
Read moreTermite Treatment Cost: common questions
Why is termite treatment so expensive in Maryland?
Should I pay for a termite inspection?
Is the protection bond worth it?
Does the treatment price include repairing the damage?
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