We build and renovate
properties propely
Renovating property in Northern Portugal can be complex — especially for international clients unfamiliar with local processes, language, and standards.
Our role is to bridge that gap and deliver projects clearly, correctly, and without unnecessary stress.
We are the official distributor of PRANA heat recovery ventilation systems in Northern Portugal and provide professional supply and installation for residential and commercial properties.
Roofs | Renovations | Windows Doors
HVAC | Ventilation (HRV / MVHR) | Electrical
How we work?
1. Initial Contact
Provide key project details: scope of work, approximate area, location, and timeline.
2. Technical Call
We review your requirements and define the scope before scheduling a site visit.
3. On-Site Assessment
We inspect the property to evaluate technical conditions and project scope.
4. Preliminary Quote
You receive a detailed quotation covering
works and materials.
5. Approval & Execution
Upon approval, we proceed with the project
within the agreed timeframe.
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At Renovation Experts, we provide solutions designed to make your home more comfortable, efficient, and durable. Explore our core services below.
Tile Roofing
We build durable tile roofing systems that combine aesthetics with long-term protection against weather conditions.
Full Renovations
Transform your property with tailored renovation solutions designed to improve comfort, functionality, and energy performance.
HVAC Systems
Keep your home comfortable all year round with efficient heating, ventilation, and air conditioning solutions.
FAQ
We just renovated, and mold came back after a few months. Why?
Short answer: you fixed the surface, not the cause.
What usually happens: walls repainted over damp plaster, no ventilation (windows always closed), thermal bridges (cold corners, ceilings), moisture trapped inside after works
Result (3–6 months): mold returns paint starts to stain smell appears
What actually fixes it: controlled ventilation (VMC / HRV) identify moisture source (facade, roof, capillary rise) correct insulation details (cold bridges)
Before vs After:
Before: repaint every year
After: stable walls, no mold
We installed new windows, but reveals swelled and paint is peeling. Why?
Short answer: wrong installation.
Typical mistake in Portugal: window fixed with foam only, no sealing tapes (inside/outside), no vapor control no proper sill detail
What happens: humid indoor air hits cold edge → condensation water goes into reveals → swelling + peeling
What proper installation looks like: external waterproof tape, internal vapor barrier tape, correct insulation around frame, proper drainage
Consequence if ignored: mold around windows, damaged plaster, heat loss
We replaced roof tiles, now the house smells damp and parquet is swelling. Why?
Short answer: roof doesn’t breathe.
Common scenario: tiles replaced, no ventilation gap (should be ~4–6 cm), no airflow from eaves to ridge, membrane installed incorrectly
What happens: moisture gets trapped under roof, air becomes humid, goes down into living space, wood floors absorb it → swelling
Correct solution: ventilated roof system, proper membrane, continuous airflow
Important: New tiles ≠ dry house
We use heaters in winter, but it’s still cold and bills are high. What can we do?
Short answer: you are heating losses, not the house.
Where heat goes: windows (bad installation or old frames) → up to ~20–40%, roof → ~20–30%, walls (no insulation), uncontrolled air leaks
What people usually do: add more heaters → bills go up comfort doesn’t improve
What actually works: fix windows installation (airtight + insulated), improve roof insulation / ventilation, control airflow (not random drafts), consider heat pump (instead of electric heaters)
Before vs After:
Before: cold + high bills
After: stable temperature, lower energy use