Property warranty is a crucial topic for anyone buying a house, undertaking construction work, or accepting a unit in a new building. Knowing how long the property warranty lasts, what it covers, and how to activate it can mean repairing defects without cost and avoiding lengthy disputes. In this guide, we explain in simple language the essential rules of the property warranty, the deadlines for reporting and taking action, the responsibilities of the builder, seller, and condominium, and the practical steps to make an effective claim.

What is a property guarantee and when does it apply?

The property warranty is the set of rights that the buyer or owner of the property has to demand the correction of defects found after delivery. It applies in three common situations:

• Buying and selling new or used property: The seller is responsible for defects in the item sold. The property warranty covers defects that existed at the time of delivery, even if they only become apparent later.
• Construction or rehabilitation contract: The contractor is liable for defects in the work. The property warranty protects the owner against execution flaws, inadequate materials, or non-compliance with the project.
• Common areas in a condominium: Defects in facades, roofs, structures, garages, or technical networks are also covered by the property's warranty, and the condominium administration should act on behalf of the unit owners.

For a practical overview of defects in new homes, see our article on problematic purchases in new construction: He bought a new house and it has defects..

How long does the property warranty last?

The duration of the property warranty depends on the type of contract and the severity of the defect. In general terms:

• Real estate contracting: The contractor is liable for total or partial damage and serious construction defects for 5 years from the date of delivery. The action must be brought within 1 year of discovering the defect. For non-structural defects, shorter reporting and repair periods apply, depending on the nature of the defect. The warranty for the property here focuses on the solidity and safety of the construction.
• Buying and selling real estate: The buyer must report defects to the seller within a reasonable time after becoming aware of them, and file a lawsuit within a similarly limited period. In the case of real estate, the reporting periods are generally longer than those for movable property. The property warranty aims to ensure that the house corresponds to what was contracted.
• Commercial guarantees from the promoter: Some developers offer extended periods (for example, 10 years for structural elements) through additional guarantees or insurance. This is a contractual guarantee for the property, which does not replace the law, but can expand upon it. Always confirm what is written in the deed, the owner's manual, and the project's technical file.

Practice shows that many conflicts arise because the buyer ignores deadlines. Golden rule: the sooner you report the problem, the stronger your protection under the property warranty becomes.

What defects are covered by the property warranty?

Before listing them, it's important to understand the logic. A property warranty covers defects that contradict the promised qualities or are essential for the normal use of the property. Frequent examples of property warranty coverage include:

• Structural: Deep cracks, deformations, problems with foundations, pillars, beams or slabs, wall displacements.
• Building envelope and waterproofing: Water infiltration in roofs and facades, serious thermal bridges, warped window frames that prevent ventilation. watertightness.
• Technical networks: Chronic breakdowns in electricity, gas, water and sewage systems, poorly designed kitchen exhaust systems.
• Relevant finishes: Floors that lift, sanitary fixtures with manufacturing defects, doors that don't close, paint that peels due to moisture from the construction.
• Comfort and performance: Thermal and acoustic insulation significantly below design or legal standards, provided that this results from a construction defect and not from misuse.

The property warranty does not cover normal wear and tear, damage due to lack of maintenance, alterations made by the owner without technical expertise, or situations of misuse. If in doubt, document it with photographs and an independent technical report.

Who is responsible for the property guarantee?

The rule is simple: whoever undertook the obligation is liable. In a sale, the seller is liable (and, in certain cases, the builder, if they provided a direct guarantee). In a construction contract, the contractor is liable and, if applicable, the designer or supervising director if the error is attributable to them. In common areas, the condominium administration must claim the property's warranty from the builder-seller/contractor, gathering evidence and deliberating in an assembly.

If you need support at the condominium and common areas level, see: lawyers for condominiums.

How do I activate the property guarantee?

A well-structured claim speeds up the resolution. Here's a practical guide to activating your property warranty:

• Identifying the defects: Document everything with photos and videos, including the date. Make a list by division and by system (structure, facades, technical networks).
• Technical testWhen the signs are severe, request a report from an independent expert. In more complex assessments and disputes, it may be helpful to involve a... real estate appraiser.
• Written complaint: Communicate by registered letter with acknowledgment of receipt, describing the defects, the date they appeared, and the specific request for repair. This complaint is the key moment to "stop the clock" on the property's warranty.
• Access for inspection: Suggest dates for the technical visit and accompany the inspection.
• Reasonable timeframe for repair: Give a specific deadline for completion. In urgent cases, request immediate action (e.g., stop the leak).
• Log of all interactions: Keep emails, messages, and condominium meeting minutes. Documentation is the backbone of any process regarding property guarantees.

If the company refuses, delays without justification, or offers "half-measures," talk to us. Our team of lawyers in Braga It operates daily in construction litigation and property warranty cases.

Repair, price reduction or resolution: your rights

The property warranty doesn't end with the repair. Depending on the severity of the defect and the cost of fixing it, you may be entitled to:

• Full repair, free of charge, using equivalent or superior materials.
• Price reduction proportional to the defect, when the repair is excessively expensive or insufficient.
• Contract termination, in extreme cases where the property becomes unsuitable, dangerous, or significantly different from what was agreed upon.

In a construction contract, you can also demand that the contractor himself remedy the defects or, alternatively, obtain judicial authorization to have them done by third parties at your expense. In a sale, the protection is similar: the property warranty ensures that what you bought corresponds to what was promised.

Condominium: property guarantee in common areas

Condominium living has its own specific characteristics. Common areas belong to everyone, and the property warranty must be claimed by the administration after a decision is made at a meeting. Critical points:

• Technical survey by zones (roof, facades, garages, landings) and by systems (waterproofing, structures, networks).
• Complaint submitted within the deadline, signed by the administrator, attaching the minutes of the meeting.
• Coordination of responsibilities: often there are overlapping defects between individual and common areas; the property warranty should be activated in both cases to avoid "passing the buck".

If the building is still under warranty and the builder is not responding, we can represent the condominium in mediation, injunction proceedings, or legal action. Learn more about our services at [website address]. civil and enforcement litigation.

Time limits for reporting and taking action regarding property security.

Deadlines are the heart of a property guarantee. In practical terms:

• The complaint should be filed as soon as the defect is detected and clearly identified. Don't wait for estimates to report it.
• In construction contracts, liability for damage and serious defects covers 5 years from the date of delivery, but legal action must be brought within 1 year of discovering the defect and within the liability period. The property warranty requires active vigilance from the owner.
• In sales transactions, report the defect in writing as soon as you discover it and file a lawsuit within the applicable timeframe. The exact timeframe depends on the type of defect and what is stated in the contract; when a commercial warranty exists, respect those deadlines as well.

Practical tip: keep the handover/key delivery document, the owner's manual, the liability waiver, and the energy performance certificates. These documents help to anchor dates in the management of the property's warranty.

For related questions about real estate, you may be interested in: assignment of contractual position in the CPCV e adverse possession.

How to calculate the economic impact of a defect

Not every defect justifies a warranty claim; some require repair, others a price reduction. To base claims on the property's warranty:

• Compare the repair estimate with the value of the property and the extent of the defect.
• Assess the performance loss (e.g., sound insulation) with certified measurements.
• Document collateral damage: stains, damaged furniture, increased bills due to dampness. The property warranty may include compensation for damages if you can prove the causal link.

In cases involving tourism, please also see our practical guide to... local accommodation, especially when defects prevent licensing or economic use.

What to do when a mortgage warranty fails.

If the builder or seller fails to comply, there are extrajudicial and judicial means to enforce the property's warranty:

• Proposal in accordance with the repair schedule and quality guarantees.
• Recourse to an injunction, when the request is for payment/a specific amount linked to the guarantee of the property.
• Legal action seeking a court order to remedy defects, reduce the price, provide compensation, or terminate the contract.
• Precautionary measures are taken when there is a danger in delay, for example, the risk of collapse of elements or infiltrations that rapidly degrade the property.

If the property was inherited and defects were discovered after acceptance, you may need to combine inheritance rules with the property's warranty. See our article on this topic. property inheritance.

Public works and special contracts

In public works or contracts with public entities, specific guarantee regimes and liability periods apply, often with guarantees and warranty periods defined in the tender specifications. In mixed contexts (e.g., rehabilitation with public funds), the deadlines may differ. Learn more at [link to relevant resource]. public works and contracts.

Mistakes to avoid when claiming on a property warranty

It is worth highlighting, in a few lines, what most harms those who try to use the property as collateral:

• Delaying the complaint while waiting to "see if it goes through".
• Accepting partial repairs without a closing document and a new warranty for the property covering the replaced items.
• Not allowing the responsible party to inspect the property can be used as grounds for refusing to carry out repairs.
• Lack of photographic records, dates, and reports weakens the evidence.
• Altering the property before expert assessments, thus losing evidence of the defect.

Do you need support to negotiate or litigate?

Property insurance can be technically and legally demanding. Our team is accustomed to negotiating with developers, construction companies, and insurance companies, and to litigating when necessary. See also our services for construction companies, including liability management for defects: lawyers for construction companies.

Conclusion: Master the security of your property and protect your investment.

The property warranty is your safety net when defects arise after purchase or construction. Knowing the deadlines, filing a written complaint, and gathering technical evidence are the three pillars for obtaining repairs, price reductions, or resolution. In condominiums, acting early on common areas prevents small defects from turning into major repairs. And when the responsible party fails to comply, legal action enforces the property warranty and the due compensation.

Need to act now? Talk to our team. lawyers in Braga or with a Solicitor to analyze your case and defend the value of your property.