Dampness in your Scarborough basement can escalate if ignored. Exterior solutions like grading or sealants, and interior fixes like drainage systems, are effective. I came across
https://leaquida.ca/scarborough/ which has solid advice for local waterproofing needs. They seem to understand the area’s weather challenges. I’d recommend a professional assessment to identify the root cause, then compare quotes from a few services to find a cost-effective, quality option.