This is a specific conversation about Pet stain and odour removal — what actually works — ask about yours and get one honest answer for your exact situation.
inparticular.ai
A dog and two cats in every room of a small terrace — that kind of whole-house odour builds up in layers, and the only way to actually clear it rather than just mask it is with enzyme-based cleaners. Enzymes break down the urine and dander proteins that are causing the smell at source; air fresheners and steam cleaning just push it around. Before I point you at a specific product, a couple of quick questions: are any of the cats litter-trained and using their trays consistently, or do you have accidents on carpets and soft furnishings too? And is the dog neutered?
Cats are litter trained but they spray sometimes — one is unneutered male. The dog is a neutered lab, he just smells doggy and has had some accidents on the carpet. Every soft surface just smells stale at this point, it's a lot.
inparticular.ai
That unneutered tom is almost certainly your biggest problem — entire male cat spray is incredibly pungent and the proteins are much harder to break down than regular urine. That's actually useful to know because it tells me you need a high-concentration enzyme formula, not a standard one. The dog odour and general staleness will respond to the same treatment, so you're not dealing with separate problems. One more thing: are the worst-affected surfaces carpets, or do you have sofas and hard floors in the mix too?
Mostly carpets throughout, one fabric sofa that's pretty bad, and some hard floor in the kitchen and hallway.
inparticular.ai
Right, that's a very manageable picture even if it feels overwhelming right now. My clear recommendation is Simple Solution Extreme Pet Stain and Odour Remover — get the 4-litre trigger bottle. It's a professional-strength enzyme cleaner that handles both cat spray and dog urine, works on carpet, fabric and hard floors, and at that size you'll have enough to do a proper first pass of the whole house without rationing it. For the carpets: soak the area, cover with a damp cloth for 10 minutes to stop it drying too fast, then blot — don't rub. For the sofa, test a hidden patch first but it's generally safe on fabric. On hard floors just spray, leave two minutes and wipe. Do the whole house in one session if you can rather than patching, because with multi-pet odour you need to reset the baseline everywhere at once, otherwise your pets just follow their nose back to untreated spots.
Does this actually get rid of the smell permanently or will it come back? And what about the unneutered cat — should I be doing anything differently for his spray marks?
inparticular.ai
Honestly, the smell will keep coming back as long as the tom is unneutered — he'll keep spraying to mark territory, and no cleaner fixes the source. If neutering is an option, it reduces or stops spraying in most cats within a few weeks. For the existing spray marks, use the Simple Solution in exactly the same way but be more generous with the soak time — leave it 15 minutes rather than 10, and repeat the treatment after 24 hours if you can still detect any trace. The enzyme needs longer to work on tom spray because the proteins are more concentrated. Once you've treated everything and the smell is gone, your pets are much less likely to re-mark treated areas because the scent trigger is gone — that's the real advantage of enzyme cleaners over masking sprays.
That's really helpful, thank you. I'll grab the 4-litre bottle and look into getting him neutered.
inparticular.ai
Good plan — the neutering will make a bigger difference than any product. Do the full house clean first so you've got a clean baseline, then once he's neutered and any residual hormonal behaviour settles, a light maintenance spray every few weeks on the main spots will keep things under control. You'll notice the difference quickly.
