Based on my personal experience dealing with ant infestations, I found that hidden spaces behind wall trim can serve as entry points or nests for ants. Removing the trim carefully allows you to access these concealed gaps. Once the trim is off, cleaning the area thoroughly is essential to remove dust, debris, or residue that might prevent adhesives from bonding effectively. I recommend using a strong adhesive combined with wood putty to fill all visible gaps. The wood putty helps fill larger cavities, while adhesive ensures the filling stays firmly in place over time. After allowing the filler to dry and cure, putting the trim back carefully restores the aesthetic look of your walls while blocking these access points. This process not only improves the physical barrier against ants but also complements the use of targeted ant baits like liquid ant bait. Sealing gaps prevents ants from bypassing the bait stations, increasing the likelihood that they carry the bait back to their colonies. If you don't seal these gaps, ants can simply avoid the bait and continue nesting behind the walls. I also suggest performing regular inspections of your baseboards and trim, especially in kitchens and bathrooms where ants are commonly found. Early detection combined with the trim sealing technique can drastically reduce ant presence in your home. For best results, combine these physical measures with appropriate ant baiting products and maintain cleanliness to minimize attractants. Overall, this DIY approach to removing trim, filling gaps with wood putty and strong adhesive, and reinstalling trim is a cost-effective and practical way to enhance your pest control efforts. It’s a simple fix that many overlook but can make a big difference in managing ant problems efficiently.