Who Pays for a Mold Inspection: Landlord or Tenant?

Does Portuguese Law Say Who Pays for a Mold Inspection? #

As far as we are aware, Portuguese tenancy law sets no specific rule on who pays for a mold inspection; repair duties sit in the Código Civil and NRAU, so the inspection cost follows whoever commissions it.

Two costs get mixed up in these disputes. The first is the cost of finding out what is wrong, which is the inspection. The second is the cost of fixing it. The law speaks to the second one: a landlord must keep the property habitable and repair defects in the building, unless the mold comes from the tenant's own use of the home. Our guide on what a landlord must do when a tenant reports mold sets out those obligations and the timeline. For how the inspection itself works, see what a full diagnostic measures.

The inspection sits in between. Nobody is forced to commission one, but both sides gain from having one, because it turns an argument about cause into a document about cause.

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Legal framework Landlord habitability and repair obligations sit in the Código Civil and the Novo Regime do Arrendamento Urbano (NRAU, Lei n.º 6/2006). Whether inspection costs can be passed to the other party depends on the lease terms and the facts, so confirm with a lawyer.

Why Is the Landlord Usually the One Who Commissions It? #

Landlords usually commission the inspection because they carry the repair obligation when the cause is the building, and a documented inspection inside the 30-day window shows they acted on the complaint.

The 30-day window starts when the tenant sends a registered demand letter (carta registada), not from an informal message. Scheduling an inspection and keeping the report is enough to show engagement, even if the repair is not finished yet. The landlord also controls access to the roof, the external walls and the shared parts of the building, which is where many causes sit.

There is a practical reason as well. If the report finds a building defect, the landlord was going to pay for the fix anyway, and the report tells them what to fix. If it finds a use-related cause, the landlord has a document to take to the conversation about habits and costs.

When Should a Tenant Pay for an Inspection? #

A tenant who wants independent evidence before the landlord responds, or who disputes the landlord's explanation, can commission an inspection, usually at their own cost.

Inside the rented unit, a tenant can arrange the visit directly. Common areas, external walls and the roof may need the landlord's or the condominium's cooperation, so tell the landlord before you book and invite them to attend. An inspection the landlord watched is much harder to dismiss.

Paying does not close the question of reimbursement. If the report points to a building defect, ask the landlord in writing to reimburse the fee, attach the report, and keep every message. Whether you can enforce that is a legal question, so speak to a lawyer, DECO or the Balcão Nacional do Arrendamento before assuming you can.

Can the Cost Be Split Between Landlord and Tenant? #

Nothing stops landlord and tenant from agreeing in writing to share the cost, for example 50/50 on a €695 flat fee (€347.50 each), or to let the report's cause decide who reimburses whom.

A shared inspection removes the question of whose inspector it is. Both sides agree the inspector, the date and who attends, and both receive the same report. Splitting the fee is the simplest version. A second version ties payment to the result: the landlord covers the fee if the cause is the building, the tenant covers it if the cause is use, and the two share it if the report finds both.

The person who pays should not change the findings. An independent inspector records readings and reports what they show. A report is only useful to both sides if neither can say it was shaped by the other.

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Put it in writing Even a short email works: who books, who pays, who attends, and how the cost is settled once the report is in. It prevents a second dispute about the first one.

Who Pays for Related Costs: Air Sampling, Leaks, Repairs and Common Areas? #

Related costs follow the same logic: whoever commissions a test pays for it, while repairs follow the cause, with building defects on the landlord and use-related damage on the tenant.

Air sampling (€395 add-on): paid by whoever orders it. It is optional and sits alongside the €695 inspection.
Plumber or leak detection: a leak inside a wall or in building pipework is a landlord matter. A leaking appliance the tenant owns is the tenant's.
Repairs: the cause decides. Rising damp (humidade ascensional) from a failed damp-proof course is the landlord's. Indoor laundry drying with no ventilation is the tenant's.
Common areas: damp in a shared stairwell or basement generally falls to the landlord or the condominium, depending on who owns the part of the building.
Damaged belongings: a question for insurance. Our guide on home insurance and mold in Portugal lists what to ask your insurer.

These are general patterns, not rulings. A lease can add detail, and a specific dispute needs specific advice.

What Should You Agree Before Booking an Inspection? #

Before booking, landlord and tenant should agree five points in writing: who commissions, which independent inspector, the access date, who attends, and how cost and findings are handled afterwards.

1

Agree 1

Who commissions and who pays

Decide whether one party books and pays, or both share. State it in a message both can refer back to.

2

Agree 2

One independent inspector

Pick a single inspector both accept, so the report is not contested on who chose it.

3

Agree 3

Access and date

Fix a time when the unit and any shared areas can be reached. Mention the garage, roof access or storage rooms if the damp may extend there.

4

Agree 4

Leave the area untouched

Do not paint, bleach or move furniture around the affected wall before the visit, and keep ventilating the way you normally do.

5

Agree 5

How the report is used

Agree that both parties receive it, and how repairs and any reimbursement will be handled once the cause is known.

For what happens on the day, read what happens during a moisture inspection.

Frequently Asked Questions #

Q Can a landlord make the tenant pay for a mold inspection?

Whether the inspection cost can be passed to the tenant depends on the lease terms and the circumstances. It is a legal question, and a landlord in that position should confirm it with a lawyer rather than assume.

Q Does the person who pays influence the result?

It should not. An independent inspector reports readings and findings as they are, and the report is useful to both sides only if it is not shaped by who paid for it.

Q What if the mold has both a building cause and a use cause?

Causes can overlap, for example thermal bridging in the wall together with indoor laundry drying. The report records both, so repairs and habits can be addressed in proportion. How the cost is shared is for the parties or a lawyer to settle.

Q Can the inspection fee be covered by insurance?

Cover varies by policy and insurer, so check the wording. Our guide on home insurance and mold in Portugal lists what to ask.

Q Who pays when I am buying, not renting?

A buyer usually commissions and pays for a pre-purchase inspection, then uses the findings in price negotiation or in the decision to buy. See our pre-purchase mold checklist.

Conclusion #

Portuguese law deals with who pays for repairs, not with who pays to find out what needs repairing. The inspection fee follows whoever books it, and the fair way to handle it is usually to agree in writing before anyone books.

mold.pt gives both sides the same written cause report, based on moisture mapping and on-site species testing, at a flat €695 including VAT. If you are in a landlord and tenant dispute about mold, request an inspection and share the report with the other party.

Who Pays for a Mold Inspection in Portugal: Landlord or Tenant?

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