Dog urine on wooden stairs — holiday let fix

Dog urine on wooden stairs between holiday lets is a real problem — wood is porous, so if the smell isn't fully destroyed it'll linger for the next guests and the dog that arrives with them will head straight back to the same spot. The only products that permanently eliminate pet odours are enzyme-based cleaners; anything else just masks it temporarily. To point you to the right one: do you know roughly what size or breed the dog was, and how long the urine has been sitting there — are we talking hours or a few days?

A Labrador means a large volume of urine — they produce a lot — and 24-plus hours on wood means it's already started wicking down into the grain and potentially into any gaps between the boards. You'll need a proper enzyme cleaner in decent volume and you need to saturate the area, not just spray lightly. What finish are the stairs — sealed/varnished, painted, or bare unfinished wood?

Sealed is actually helpful here — it means the urine hasn't penetrated as deeply as it would on bare wood. The join is the part to focus on. My recommendation is Simple Solution Extreme Pet Stain and Odour Remover — it's a professional-strength enzyme formula, available in a one-litre spray bottle on Amazon UK, and it's specifically designed for tough set-in stains. Saturate the treads properly, work the nozzle along that tread-riser join so the solution gets into the gap, and let it dwell for at least 10 minutes before blotting. Don't scrub — blot and let the enzymes do the work. You may need a second application on the join if the smell persists after drying.

Simple Solution is water-based and safe on sealed wood surfaces — it won't strip varnish when used as directed. That said, always blot up the excess rather than leaving it to pool and air-dry sitting wet, which is the thing most likely to leave a watermark on any sealed floor. Do a small test patch on a less visible tread first if you're nervous, but I've not seen it cause issues on standard varnished wood. Once the stairs are clean and fully dry, it's worth a quick once-over with a UV pet urine detector torch before the next guests arrive — it shows up any spots you've missed that you can't smell yet.

Amazon UK has plenty — search for 'UV pet urine detector torch' and you'll find reliable options under a tenner. Use it in a darkened room or at dusk; the urine fluoresces bright yellow-green so missed patches are obvious. It's a handy thing to keep in your cleaning kit for every changeover — catches stains before guests do.