A mattress with five years of large dog occupancy is almost certainly cleanable with meaningful result — assuming the structural condition is sound. What we need to assess: structural condition (spring integrity, foam resilience, sag level), presence of deep mould which would change our recommendation, and age of any staining. The five years of Can f 1 accumulation, sweat residue, and dog dander are all within the range of what professional extraction addresses effectively.

Our pet allergen specific pre-treatment denatures Fel d 1 and Can f 1 proteins before extraction removes them. The result will not be equivalent to a new mattress — some deep-layer allergen remains in every mattress after cleaning — but the reduction is substantial and the difference is noticeable. We provide a pre-inspection assessment at no charge before committing to the clean.

Yes — and ideally 2-4 weeks before the due date to allow maximum drying and any residual product dissipation. Cat allergen (Fel d 1) is among the most potent domestic allergens for infant sensitisation. Research on early allergen exposure in infants suggests that high Fel d 1 exposure during early infancy may increase risk of cat allergen sensitisation in genetically predisposed children.

While the evidence on early exposure and tolerance is complex, reducing the Fel d 1 concentration in the sleeping environment to the lowest practical level before infant arrival is a sensible precautionary approach. We use pH-neutral, fragrance-free chemistry for all mattresses in a home with an incoming newborn, and dry steam rather than wet extraction for the cot mattress specifically.

The primary distinction: dog allergen (Can f 1) is produced primarily in skin and saliva. Cat allergen (Fel d 1) is produced in skin, saliva, and sebaceous glands — it is more widely distributed on the cat’s body and shed in higher quantities relative to body size than dog allergen.

Fel d 1 is also a smaller particle — typically 2-5 micrometres versus Can f 1 at 5-10 micrometres — meaning it penetrates deeper into mattress fibre structures and remains airborne longer before settling. In practical cleaning terms, Fel d 1 is the more difficult allergen to address comprehensively — it requires a more targeted pre-treatment approach and the reduction achieved by extraction, while significant, is somewhat lower than for Can f 1.

For households with both cats and dogs, we apply compound pet allergen pre-treatment targeting both protein types.

Almost certainly yes — assuming the mattresses are not beyond structural life. Professional extraction is effective on long-term accumulation in 1970s Thornlie homes precisely because the extraction process reaches below the compacted surface layer.

The longer accumulation has been present, the more significant the improvement from cleaning — and therefore the more noticeable the result. The caveat is structural condition: a 45-year-old mattress that has been in service for most of that time may have structural issues that make replacement the better recommendation.

But Thornlie homes often have mattresses that were purchased 8-12 years ago and have been in a 1970s home since — younger mattresses in an older house. We assess each individually. Call 0493607943 to book a pre-inspection.

Deep-embedded pet hair is addressed through two mechanisms in our service. First, the HEPA dry vacuum pre-extraction step removes loose and surface-level pet hair before moisture is introduced.

Second, hot water extraction loosens embedded hair fibres through the combination of heat, water penetration, and suction pressure — pulling embedded fibres from the fabric weave. Complete removal of every embedded hair is not guaranteed — very short fine hairs that have been in fabric for years can be too embedded to fully extract.

But the majority of embedded hair, including sub-surface fibres not accessible to standard vacuuming, is removed in a professional extraction service. Post-clean, an allergen-rated mattress protector prevents hair from directly entering the mattress fabric in future.

Slower accumulation of new outdoor-source allergens — but faster accumulation of indoor-source allergens. With the window and door consistently closed, outdoor pollen and particulate enter at reduced rates — the minimal ventilation reduces the outdoor allergen pathway.

However, indoor sources are not reduced: the teenager’s own biological contribution (skin cells, sweat) occurs regardless of ventilation, and with limited air exchange these indoor-source allergens are not diluted by outdoor air.

Dust mite populations fed by the indoor biological load can actually be higher in a low-ventilation room because the humid, warm microenvironment — poor air exchange limits the drying effect that ventilation provides — is more favourable for mite reproduction. Net effect: a different allergen profile (less outdoor pollen, more biological and dust mite) but not lower overall.

For a Thornlie pre-sale whole-home soft furnishing clean: day one — mattresses and upholstery. Day two or later — carpets. This sequence ensures any residual moisture from mattress and upholstery cleaning has dried and settled before carpet extraction.

For sale preparation specifically, we recommend: focusing mattress cleaning on the master bedroom first as the highest-impact room for buyer impression; treating any visible staining as a priority; and ensuring the bedroom environment is odour-free — which mattress cleaning contributes to significantly in Thornlie homes with long pet occupancy history.

Call 0493607943 to discuss a whole-home pre-sale package for your Thornlie property.

Yes — caravan mattresses present specific challenges. Caravans are typically uninsulated compared to homes, meaning the mattress experiences greater temperature extremes — very hot in Perth summer, cooler in winter.

This temperature cycling drives more moisture into the mattress during cool periods and dries it more aggressively in hot periods, creating a boom-bust cycle that accelerates biological accumulation compared to a stable indoor environment.

Caravan mattresses are also often thinner than domestic mattresses and sit directly on a plywood base — which can transfer moisture from condensation on the base into the mattress underside. If the caravan mattress is accessible for our equipment — typically a straightforward access question — we clean it on the same visit as the main house mattresses. Mention the caravan at booking.