A brand-new home isn't automatically termite-proof. Here's the prevention that should be built in — and what buyers of new construction should ask about.
There's a common assumption that a brand-new home doesn't need to worry about termites for years. It's partly true and partly a trap. New construction can have real, built-in termite protection — but only if it was designed in, and even then it doesn't make a home immune. Here's what prevention should be built into new construction, and what buyers should ask about.
What Good New-Construction Prevention Looks Like
The best time to protect a house from termites is before it's finished, and quality new construction builds in several layers:
- Borate-treated framing. A borate wood treatment applied to framing lumber before the walls close provides long-lasting protection against subterranean termites and wood-boring beetles at the structural level. This is one of the most valuable things that can be done, and it can only be done during construction.
- Pre-construction soil treatment. A soil barrier applied before the slab is poured protects against subterranean termites coming up from the ground — see pre-construction termite treatment.
- Smart design and drainage. Proper grading, drainage away from the foundation, adequate clearance between soil and wood, and good ventilation remove the conditions termites need.
- Resistant materials at soil-contact and exposed exterior points.
Why New Homes Still Aren't Immune
Here's the trap. Two big caveats keep "new" from meaning "safe":
First, the structural treatments don't cover everything. Borate framing treatment protects the framing — but it doesn't extend to above-grade exterior wood: fascia, eaves, trim, and window frames. Those surfaces weather and become drywood entry points regardless of what's in the framing, and drywood termites don't need soil contact — swarmers simply fly to that exposed wood. Our post on what wood termites eat covers why no wood is truly termite-proof.
Second, treatments degrade. Pre-construction soil barriers and pressure-treated chemistry lose effectiveness over 15–25 years, so a home that was well-protected when built has reduced protection a couple of decades later.
What Buyers of New Construction Should Ask
If you're buying new, don't assume — ask:
- Was the framing lumber borate-treated during construction?
- Was a pre-construction soil treatment applied before the slab?
- What warranty covers termites, and for how long?
- Is there earth-to-wood contact anywhere, or drainage that pools near the foundation?
These questions tell you what protection actually exists, versus what you're assuming exists.
The Bottom Line
New construction *can* be well-protected against termites — with borate-treated framing, a pre-construction soil barrier, and smart drainage and design. But it's not automatic, it doesn't cover exterior drywood exposure, and it degrades over time. Whether you're building or buying new, the smart move is to confirm what's actually in place and keep up with inspections. A free inspection tells you where a new (or newer) home really stands.