Pests in Tourist Accommodation: How to Prevent, Eliminate, and Avoid Reputational Disaster

Bed bugs, cockroaches, ants, or mice can ruin your business with a single review. We tell you how to prevent pests in your tourist rental, what to do if they appear, and how much each treatment costs in Spain.

It's one of those topics that no one wants to read until it's too late. A guest writes to you at 3 a.m. saying there are bugs in the bed. Another leaves a 1-star review with a photo included. And suddenly, your listing loses visibility on Airbnb for months.

So let's get to the point. In this post, I will tell you which pests are most common in tourist accommodations in Spain, how to prevent them before they appear, what to do if you already have them, how much each treatment costs, and how to manage communication with the guest without damaging your reputation.

The most common pests in tourist accommodations in Spain

Not all pests are the same. Some are annoying but easy to eliminate. Others are a nightmare that can keep your property closed for weeks.

Bed bugs: the number one nightmare

If there's a pest that keeps you awake (literally), it's bed bugs. They are tiny, hide in mattress seams, headboards, sockets, and skirting boards. They travel in suitcases and clothes. A single infected guest can unknowingly introduce bed bugs into your property.

The worst part: you don't always see them. Sometimes you only notice red bites aligned on the guest's body. And when you do, there's already a colony.

In tourist accommodations, they are especially common because of the constant rotation of people and luggage. In 2023 and 2024, there was a huge spike in Europe after the post-COVID period.

Cockroaches

Very common in coastal cities and old apartments with shared drains. They come out at night, crawl through any crack, and reproduce rapidly. The American cockroach (large and flying) is the most common in southern Spain.

Ants

Especially in spring and summer. They are not dangerous but create an unpleasant spectacle in the kitchen. They usually enter through the facade, windows, or pipes.

Mice and rats

More common in rural areas and ground-floor apartments in cities. A mouse can damage cables, pipes, and furniture, besides scaring the guest.

Mosquitoes

Especially the tiger mosquito in Mediterranean areas. It is not a structural pest but can ruin your guests' nights if you don't have mosquito nets.

Clothes moths

Less common but devastating if you have wardrobes with stored bedding. They literally eat the sheets.

Why pests are especially dangerous in tourist rentals

In a regular home, if a pest appears, you treat it and that's it. In a tourist rental, you have three extra problems:

1. Constant rotation: each week, a different pest can enter (and leave) with guests' luggage.
2. Public reviews: an unhappy guest won't message you privately. They will ruin you on Airbnb, Booking, and Google.
3. Forced closure: during treatment, you can't have guests. That means days or weeks without income.

A single review mentioning "bed bugs" or "cockroaches" can reduce your occupancy by 30-40% for months. I've seen properties take a year to recover.

Prevention: 90% of the work

The best pest is the one that doesn't appear. And prevention costs much less than treatment.

Periodic mattress and headboard inspection

This is the critical point for bed bugs. After each guest cleaning, the cleaning person should:

• Check the mattress seams (look for tiny black dots or shells)
• Look behind the headboard
• Check skirting boards near the bed
• Inspect sheets and pillows

If you have doubts about cleanliness, I leave you this guide: tourist accommodation cleaning.

Bed bug-proof covers on mattresses and pillows

They cost between 25 and 60 euros per mattress. These are airtight covers with zippers that prevent bed bugs from nesting in the mattress. It's the best preventive measure you can take. End of story.

If you have a new mattress, put a cover on from day one. If it's old, consider replacing it and adding a cover. Also see: mattresses in tourist accommodation.

Sealing cracks and access points

Check:

• Kitchen drains (under the sink)
• Bathroom drains
• Cracks in skirting boards
• Poorly sealed windows
• Gaps around pipes

Use silicone sealants and expanding foam. Cheap and effective against cockroaches, ants, and mice.

Mosquito nets on windows

Mandatory if you are in a Mediterranean zone or near stagnant water. They cost 30-80 euros per window. An investment that pays off in reviews.

Regular deep cleaning

Every 3-6 months, a deep cleaning that includes:

• Vacuuming mattresses, sofas, and carpets
• Cleaning appliances inside (fridge, oven, microwave)
• Behind heavy furniture
• On top of wardrobes

Annual professional preventive treatment

Between 80 and 200 euros per year. A pest control company visits once a year and applies preventive products in critical areas. Very worth it.

What to do if you already have a pest: step-by-step protocol

This is where many owners mess up. Let's go step by step.

Step 1: Confirm the diagnosis

Before panicking, confirm. Ask for photos from the guest. If it's bed bugs, you will see aligned bites, black dots on sheets, or small brown insects. If it's cockroaches, it's obvious. Same for ants.

Step 2: Cancel future reservations immediately

Don't let anyone else in until it's resolved. I know it hurts. But it's worse to have 3 consecutive reviews talking about bugs.

Block the calendar. If you already have confirmed reservations, contact the platform and cancel citing force majeure. Airbnb usually accepts if you document the pest.

Step 3: Call a professional company

Forget supermarket sprays. For bed bugs, cockroaches, or mice, you need a professional. Look for companies with ROESB certification (Official Registry of Biocidal Establishments and Services).

Step 4: Document everything

Save:

• Photos of the pest
• Treatment invoice
• Company certificate

This is useful if the guest complains on the platform, and also for tax deductions. See deductible expenses.

Step 5: Communicate with the current guest

Be honest. Refund the proportional part or the entire stay depending on the case. Offer relocation to another accommodation if possible. People forgive more a well-managed problem than a hidden one.

Step 6: Only reopen when the certificate confirms

The company will give you a certificate after treatment. Some pests (bed bugs) require several visits spaced 2-3 weeks apart. Do not reopen before.

How much each treatment costs in Spain

Approximate prices for a 60-80 m² apartment in 2025:

Pest	Treatment	Cost	Duration
Bed bugs	Thermal + chemical (2-3 visits)	400-900 euros	3-6 weeks
Cockroaches	Gel + spraying	100-250 euros	1-2 weeks
Ants	Baits + spraying	80-180 euros	1 week
Mice/rats	Baits + sealing	150-400 euros	2-4 weeks
Mosquitoes	Preventive + larvicide	80-200 euros	Recurrent
Clothes moths	Wardrobe fumigation	100-200 euros	1-2 weeks

And then add:

• Days without income during treatment (calculate based on your ADR)
• Possible reimbursement to the current guest
• Replacement of textiles in extreme cases (mattress, sofa, curtains)

For bed bugs, the actual cost (treatment + days not renting + possible replacements) usually ranges between 1,500 and 3,000 euros. That's why prevention is so important.

Bed bugs: a special chapter

Deserves a separate section because they are the worst nightmare in tourist rentals.

How to detect them before the guest

• Tiny black dots on mattress seams (excrement)
• Reddish or brown stains on sheets (crushed blood)
• Translucent shells (molts)
• Unpleasant sweetish odor if infestation is large

Effective treatments (and ineffective ones)

Works:

• Professional thermal treatment (heat at 60°C for hours)
• Professional insecticides applied in multiple sessions
• High-temperature steam on seams

Does not work:

• Supermarket sprays
• Essential oils
• Domestic insecticide "bombs"
• Washing only sheets (bed bugs are in the mattress)

Post-guest suspicious protocol

If a previous guest warned you they came from a hotel with bed bugs (sometimes it happens), or if you notice something strange:

1. Wash all bedding at at least 60°C
2. Put pillows and duvets in a high-temperature dryer for 30 minutes
3. Vacuum mattress, headboard, and skirting boards
4. Consider preventive treatment

How to manage a negative pest review

If the guest has already posted the review, not all is lost.

Respond publicly

Ideal response:

"We deeply regret what happened. As soon as we were informed, we canceled upcoming reservations and hired a professional treatment that has already certified complete eradication. We refunded the entire stay. We have strengthened our prevention protocols. Our guests are our priority."

Never argue. Never deny. Never attack the guest. See managing negative reviews.

Request removal in specific cases

Airbnb can remove a review if the guest is lying or if the problem was already resolved before their stay and you can prove it with the professional certificate. They don't always accept, but it's worth trying.

Legal and insurance aspects

Does insurance cover it?

It depends on the policy. Some tourist housing insurances cover disinfection after pests, especially if caused by a guest (imported bed bugs). Review your policy. See necessary insurances.

Habitability obligation

A property with an active pest infestation does not meet minimum habitability conditions. If a guest reports it, you could face health fines in addition to reputational damage.

Mandatory refunds

If the guest cannot use the accommodation normally due to pests, you are obliged to refund. It's non-negotiable. Airbnb and Booking will require it.

Important: never hide an active pest infestation. If a guest stays and discovers it later, the review will be brutal, and the platform may suspend your listing.

Monthly prevention checklist

• Check mattress and headboard seams
• Inspect kitchen and bathroom drains
• Vacuum skirting boards and behind furniture
• Check mosquito nets
• Ensure no forgotten open food
• Check pantry (flours, cereals)
• Seal any new cracks
• Ensure trash is taken out before each checkout (trash guide)

How Autoregistro fits in

Autoregistro doesn't eliminate pests (hopefully). But it frees you from the paperwork of traveler registration so you can dedicate that time to what really matters: keeping your property spotless, conducting periodic inspections, and preventing disasters.

For 1 euro per month per property (less than a coffee), your guests fill out a form and their data automatically goes to SES Hospedajes. No need to manually load IDs or fight with the ministry's website at 11 p.m.

That saved time is literally what you need to check the mattress before the next check-in.

Frequently Asked Questions

Can I treat bed bugs myself with store-bought products?

No. Domestic products don't penetrate where bed bugs hide and only cause them to disperse and colonize more areas. Always use a certified professional.

How long should I keep the property closed after treatment?

It depends on the treatment. For cockroaches or ants, 24-48 hours is usually enough. For bed bugs, between 3 and 6 weeks with multiple visits. The company will give you the exact timeframe in the certificate.

Should I warn future guests about a pest infestation?

Not if the problem is fully resolved and certified. You must be 100% sure before accepting new reservations. If in doubt, delay.

Is the treatment cost tax-deductible?

Yes, it's a fully deductible maintenance expense. Keep the invoice. See deductible expenses for tourist rentals.

How often should I do preventive treatments?

At least once a year. If you're in a coastal area, near restaurants, or in an old building, every 6 months. It costs little and prevents huge headaches.