If you think termites are a summer problem, you are already a step behind
In Missouri, termite activity starts ramping up as early as March and peaks through May. That timing catches a lot of homeowners off guard, especially in St. Louis where spring also happens to be one of the busiest real estate seasons of the year.
And here is where things get interesting. The biggest surprises about termites are not when they show up. It is how they show up, what they actually damage, and how often people miss the signs.
Surprise #1: The “swarm” is not the problem… it is the warning
Those flying insects that suddenly appear near your windows in the spring? Most people assume that is the infestation. It is not. That is the announcement that a colony is already nearby and mature enough to reproduce. In other words, by the time you see a swarm, the termites have likely been around for a while.
Even more surprising, they are not great fliers. Many of them drop quickly and start looking for a place to establish a new colony, often very close to where you found them.
Surprise #2: Termites do not care how “nice” your home is
There is a persistent belief that termites go after older or poorly maintained homes. Not true.
In St. Louis, we see termite activity in:
- New construction
- Fully renovated homes
- High-end listings
- Meticulously maintained properties
Termites are after one thing: cellulose. If your home has wood, paper-backed drywall, or even certain types of insulation, it is on the menu. Condition and price point do not make you immune.
Surprise #3: Damage can be present with zero visible signs
This is the part that makes buyers nervous and sellers defensive. Termites work from the inside out. They can hollow out structural wood while leaving the outer surface intact. That means:
- Baseboards can look perfectly fine
- Floors can feel solid… until they do not
- Framing members can be compromised without obvious visual clues
In real estate transactions, this is exactly why termite inspections matter. Not because every home has termites, but because when they do, it is often not obvious.
Surprise #4: Mud tubes are not always where you expect
Most people have heard of termite mud tubes, but they picture them along foundation walls in unfinished basements. In reality, we find them:
- Behind drywall
- Inside garages
- Along sill plates hidden by insulation
- In crawl spaces that no one has looked at in years
And sometimes, they are old. Which brings us to the next point.
Surprise #5: Not all termite evidence means active termites
This is where deals can get unnecessarily tense. Finding evidence of past termite activity does not automatically mean there is a current infestation. In many cases:
- The home was treated years ago
- The colony is no longer active
- The damage is old and stable
What matters is whether there is active infestation or untreated damage, not just the existence of prior activity. That said, any evidence should be evaluated, not dismissed. A good inspector can tell the difference. That distinction can be the difference between a reasonable repair negotiation and a deal falling apart over fear.
Surprise #6: The biggest risk factor is something most people ignore
Want to know the most common contributor to termite issues in St. Louis homes?
Moisture. Specifically:
- Poor drainage around the foundation
- Downspouts dumping water too close to the house
- Wood-to-soil contact
- Damp crawl spaces
In a region like St. Louis, where moisture and soil conditions support termite activity, this is an environmental issue more than a property-specific one. Termites thrive in moist environments. When you combine spring rains with warming temperatures, you are essentially rolling out the welcome mat.
Surprise #7: Removing the problem does not always remove the termites
It is easy to assume that if termites are found in an old shed, fence, or tree stump and you remove it, the issue is gone. Not quite. Subterranean termites live in the soil and can travel surprisingly far in search of food, often 100 to 300 feet from their colony. That means the structure where you see damage is not always the only structure within reach. Removing a damaged shed does not “send” termites to your house, but it also does not eliminate the colony. If conditions are right, your home may already be within their range.
What about those termite bait systems?
Those in-ground stations you see around homes are not a gimmick, but they are often misunderstood. They are designed to monitor and reduce termite activity over time, not act as an instant barrier. Professionally installed systems tend to be more reliable than DIY versions, but either way, they work best as part of a broader prevention strategy, not a standalone fix.
What this means if you are buying or selling this spring
If you are a buyer:
Do not skip the termite inspection. Even in a competitive market. Especially in a competitive market.
If you are a seller:
Consider getting ahead of it. A pre-listing termite inspection can eliminate surprises, strengthen your negotiating position, and show buyers that you have nothing to hide.
And for homeowners staying put:
Spring is the right time to walk your exterior, check drainage, and make sure nothing is quietly inviting problems you cannot see yet.
Spring is the season when termite activity ramps up and real estate moves fast. It is also when small issues have a way of becoming big ones if no one is looking.
Karen Moeller
STLKaren.com
Karen.McNeill@STLRE.com
314.678.7866
About the Author:
Karen Moeller is a St. Louis area REALTOR® with MORE, REALTORS® and a regular contributor to St. Louis Real Estate News, helping clients make informed, data-driven decisions.
