Crawl Space Treatment in New Westminster
Queens Park 1890s to 1920s crawl spaces, Fraser moisture, century-old vapour barriers

In a century-old uninspected Queens Park crawl space, the most common findings are: no vapour barrier or a long-deteriorated early-era version, Norway rat run evidence and possible nesting material from the Fraser River corridor, carpenter ant frass in multiple floor joist sections, and original construction materials (horsehair, sawdust) that have been absorbing moisture for 100 years.

Yes. Original pre-1920s Queens Park crawl spaces without vapour barriers have been accumulating moisture since the home was built. Combined with the Fraser River's ambient humidity, the crawl space has never had a dry condition. Vapour barrier installation plus pest treatment fundamentally changes the crawl environment.

Significantly. New Westminster's waterfront position and bowl topography keep ambient humidity elevated compared to inland Metro Vancouver. Crawl spaces near the river carry above-average persistent moisture.

If contaminated by rat nesting or sustained moisture damage, yes — the treatment scope includes removal of heavily contaminated organic materials. Heritage consultation may be relevant if any original materials are of historic significance; we note that in the inspection report.

Pest treatment and vapour barrier work are separate line items. Both are almost always needed on Queens Park heritage homes.

Through the crawl access hatch, typically in a closet floor or original exterior wall panel. On century-old homes, the hatch may be original construction with unusual dimensions or locations.

Yes. Renovation is an excellent time — when flooring is already up, crawl access is easier and we can address conditions before new flooring is installed.

The Fraser provides continuous Norway rat access to New Westminster's drainage corridors. In uninspected Queens Park crawl spaces near the waterfront, rat nesting material in the crawl is a very common finding.