Airbnb mid-stay cleans: I tested them on four properties for a year. Here's the actual data.

A host I met at a property event in Bristol last year told me she did mid-stay cleans on every booking over three nights, always included in the price, non-negotiable. Her average review score was 4.96. She'd never had a review below 4 stars. I asked her what it cost per booking. She said she didn't track it that closely.

That stuck with me. Not the score — the not tracking it. I decided to do the same thing she did but actually count the pennies, because that's my problem in life generally. I ran mid-stay cleans as a proper experiment for twelve months across four of my five properties, and I'm ready to call it.

What I actually did

From January to December last year I offered a complimentary mid-stay clean to every guest staying five or more nights. That meant a message after booking confirmation explaining that for stays of five nights or longer, I'd arrange a light clean and linen refresh at the halfway point — no charge, just let me know if they'd prefer to opt out.

Some guests opted out. Most didn't. I tracked: uptake rate, actual clean cost per booking, whether it changed review scores for that property segment, and whether guests mentioned it in reviews.

Uptake

Across 67 bookings of five nights or more, 41 took the mid-stay clean — 61%. The remaining 26 either didn't respond to the offer or actively said no thanks, usually with something like 'we're fine, don't worry about it'. A handful said they'd be out all day on Thursday and to go ahead if it was easier.

The profile of the opting-out guests was broadly: solo business travellers, people who clearly travel a lot and are comfortable in short-term lets, and one family who had small children and didn't want the disruption to nap schedules. Fair enough.

What it cost me

Each mid-stay clean costs me roughly £30-35 depending on the property size — it's a 60-90 minute light clean, not a full turnover. At my Edinburgh flat (one-bed), it's closer to £28. At the Brighton two-bed, £36. The cottage doesn't have a cleaner who can easily do mid-stays, so I excluded it from this experiment — she drives 40 minutes to the property and a mid-stay would cost nearly as much as a full turnover. I'll come back to the cottage problem.

Across 41 mid-stay cleans, I spent £1,287. Average cost per booking that accepted: £31.40. Average cost across all 67 eligible bookings: £19.20 — including the ones that said no and cost me nothing.

My average nightly rate for those stays was £78. Average stay length for the 5+ night segment: 7.3 nights. So revenue per booking in that segment: roughly £570. Adding £31 for a mid-stay clean that 61% of guests take represents a cost ratio of about 3.4% of booking revenue — or 2.1% when spread across all eligible bookings.

Did it move review scores?

Yes, but not by as much as I expected. The 5+ night bookings that took a mid-stay clean averaged 4.91 stars. The ones that declined averaged 4.86. The same properties' 1-4 night bookings averaged 4.84. These are small samples — I'm not claiming statistical significance — but the trend is consistent: longer stays with mid-stay cleans get slightly better reviews.

What's more meaningful to me: 14 of the 41 guests who accepted mentioned the mid-stay clean specifically in their review. Phrases like 'so thoughtful', 'didn't expect that level of service', 'felt like a hotel but without the impersonality'. One guest from Stockholm has booked the Edinburgh flat three times in the past year. She always takes the mid-stay. She's left a five-star review each time.

The repeat booking effect

That's the part I didn't expect to measure and ended up caring about most. Six of the 41 guests who took a mid-stay clean have returned for at least one more booking. Of the 26 who declined, one has returned. The sample is small, but the direction is clear: mid-stay cleans seem to correlate with guests coming back.

A repeat booking saves me the platform fee markup and costs nothing in marketing. At £570 per 7-night booking, even one repeat guest per year per property is worth more than the annual mid-stay clean cost.

The logistics problem

The main reason hosts don't do mid-stay cleans isn't cost — it's logistics. You need a cleaner who can do a same-day slot during an occupied stay, which means the guest has to be out or comfortable with someone in the flat, and you need to coordinate timing without it becoming stressful for everyone. My Brighton cleaner is very good at this — she texts the guest directly, agrees a time, goes in and out in 90 minutes. Zero complaints.

My Edinburgh cleaner is less comfortable with occupied-property cleans and took some convincing. We agreed she'd only do them when guests confirmed they'd be out all day, which limited uptake slightly but removed the awkwardness entirely.

The cottage stays excluded. If your properties are in areas where cleaner travel time is a significant cost driver, mid-stay cleans probably don't pencil out. It's a city-and-close-suburb model, realistically.

My conclusion

I'm keeping mid-stay cleans for all 5+ night bookings at the Edinburgh and Brighton properties. The cost is low relative to the booking value, the review uplift is real, and the repeat booking data — even in a small sample — is compelling.

I'm not offering them at the cottage until I either find a local cleaner or find a way to make the economics work. At £90 for a mid-stay clean on a property where a full turnover is already £105, it's not the right call.

If you've got a 5+ night segment and a reliable cleaner, it's worth running for three months and tracking it yourself. The £31 per clean is not nothing, but the alternative — guests sitting in a flat that gets a bit grotty by day five and leaving a 4-star review mentioning 'could have done with a hoover' — costs more in the long run.