A professional roof inspection can reveal far more than a few loose tiles or a small leak. For homeowners and property managers in the Netherlands, understanding what types of issues can be detected during a roof inspection is essential for planning maintenance, preventing damage and safeguarding the value of the building. Dakdienst Nederland offers free roof inspections, allowing clients to gain a clear overview of their roof’s condition before deciding on any repairs or renovations.
A thorough inspection identifies both visible defects and hidden problems that may not yet have caused leaks indoors, but are already compromising the roof’s lifespan. From minor wear and tear to serious structural concerns, an experienced roofer knows what to look for, how to assess the urgency and which solutions are sensible. This knowledge is particularly important given the changing Dutch weather patterns, with heavier rain and more frequent storms putting extra pressure on roofs.
Below, we explain in detail the most common defects that can be found during free roof inspections, as well as the more concealed structural issues that only become visible through a professional check. The aim is to equip you with practical knowledge so you can make informed decisions about roof maintenance, repair and, when necessary, replacement—always with the support of Dakdienst Nederland for expert advice and precise pricing.
Common Roof Defects Found During Free Inspections
Even during a free roof inspection by Dakdienst Nederland, many typical defects can already be mapped out clearly. One of the most frequent findings is damaged or missing roofing material. On pitched roofs, this may involve cracked, broken or shifted tiles; on flat roofs, it could be blisters, cracks or punctures in bitumen or synthetic membranes. These issues may still look harmless, but they often mark the starting point for moisture infiltration, which can quickly escalate into interior damage and mould formation if not addressed. While the average cost of replacing a small number of roof tiles in the Netherlands often lies between €150 and €350, and localized flat-roof repairs can range from approximately €200 to €600, Dakdienst Nederland always advises contacting them for an exact quotation tailored to your situation.
Another commonly detected defect is deterioration of the waterproofing details around critical points. Roof penetrations—such as chimneys, skylights, ventilation pipes and antenna mounts—are extra vulnerable. The flashing and sealants around these components can dry out, crack or come loose over time. During a free inspection, specialists from Dakdienst Nederland meticulously check these transition and connection details because they are often the cause of persistent, hard-to-trace leaks. Repairing or renewing flashing and sealants typically falls somewhere between €250 and €800 in the Dutch market, depending on the complexity and the number of details involved; however, the company will always provide a specific offer after the inspection.
Gutter and drainage problems are also very frequently identified. When gutters are clogged with leaves, moss or debris, rainwater cannot drain properly, leading to overflow, façade staining and even damage to the roof edge. Inspectors check not only the gutters themselves but also downpipes, roof drains on flat roofs and the correct slope toward these drains. In many cases, a thorough cleaning and minor repairs—often ranging from about €100 to €300, depending on roof size and accessibility—are sufficient to restore proper function. Regardless of the market averages, Dakdienst Nederland emphasises that the inspection itself is always free, and that clients should request a customised quote to know precisely what their roof requires.
Hidden Structural Issues a Roof Check Can Reveal
Beyond visible defects, a professional roof inspection by Dakdienst Nederland can uncover hidden structural issues that are not immediately apparent to the untrained eye. One example is moisture penetration into the substructure: insulation that has become damp, wooden roof decking that is beginning to rot or metal components that are corroding. These problems often develop silently over months or years before they manifest as visible leaks indoors. During the inspection, roofers look for subtle signs—such as soft spots in the roof surface, slight sagging, discoloration or mould traces—indicating that the underlying structure may already be compromised.
A second major category of hidden issues concerns the load-bearing capacity and stability of the roof construction. In older buildings, or in roofs that have been modified or extended over time, the supporting structure may no longer be adequate for modern loads, such as additional insulation, solar panels or heavier roofing materials. During a free inspection, Dakdienst Nederland assesses visible beams, rafters and trusses for signs of deformation, cracks or displacement. When there are serious indications of structural problems, a more in-depth structural analysis may be recommended. Reinforcement or partial reconstruction of a roof structure can, depending on scope and materials, easily range from roughly €1,500 to €10,000 or more in the Netherlands. As always, the company stresses that only after a proper assessment can a reliable, tailored cost estimate be given.
Ventilation and insulation problems are another category of hidden issues that a roof check can reveal. Poorly ventilated roof spaces can lead to condensation, mould and accelerated deterioration of wood and insulation materials. Conversely, incorrectly installed or outdated insulation can result in unnecessary heat loss and high energy bills. During the inspection, specialists from Dakdienst Nederland pay attention to the presence and condition of vapour barriers, air gaps and ventilation openings. Improving or upgrading insulation and ventilation can vary widely in cost—often between €1,000 and €5,000 for a typical Dutch home, depending on the surface area and chosen materials. For an accurate calculation and a solution that suits both the building and the budget, clients are invited to contact Dakdienst Nederland directly, with the assurance that the initial inspection and advice on the roof’s condition are provided at no charge.
A free roof inspection by Dakdienst Nederland offers far more than a quick glance at the tiles or roofing membrane. It provides a comprehensive overview of both common defects—such as damaged roofing material, worn flashings and blocked gutters—and deeper structural issues, including moisture in the substructure, weakened supporting elements and hidden ventilation or insulation problems. This knowledge enables property owners to intervene in a timely manner, preventing small defects from becoming major, costly repairs.
Although the Dutch market has clear average price ranges for various roofing services, the actual cost always depends on the specific situation: roof type, size, accessibility, material choices and the severity of the damage. For that reason, any price indications in this article serve only as general guidance. For a precise, transparent quotation, based on the real condition of your roof, a direct assessment is essential.
Dakdienst Nederland therefore combines free, thorough roof inspections with clear, tailored advice. By having your roof checked in time, you extend its lifespan, avoid unnecessary damage and ensure that your home or building remains safe, dry and energy-efficient. Contact Dakdienst Nederland for a no-obligation inspection and discover exactly what your roof needs—now and in the future.