Hoarding disorder (HD) places an important burden on people with HD, on their family members and society. In this paper we evaluate help-seeking in HD at primary mental health, measured in referral rate, together with its individual, environmental and structural correlates. We conducted an aggregate study by combining existing official data with our own survey data at the catchment area level. We found a mean annual referral rate of 1.58 (SD = 1.79) cases of HD in primary mental health facilities per 10,000 of adult population. The referrals rate correlated with socio-demographic characteristics of the catchment area, the availability of tools for clinical management of HD, and affiliation to a University Medical school. We also found that: (1) family members, neighbours, municipal workers and health professionals are the primary source of complaints for HD; (2) 72% of primary mental health facilities worked with HD in crisis situations, 52% expressed difficulties in obtaining the consent of people with HD for an intervention (3) health/social services professionals lack HD clinical management tools, training and formal collaboration with municipal (housing, building security, fire prevention) specialists. Improvement of the readiness of the health-system to deal with HD will improve help-seeking for formal medical counselling on the part of people with HD. We can improve this readiness by providing primary mental-health facilities with training, clinical management tools and by helping them to establish formal collaboration with municipalities and community organisations. University medical schools can take a leadership role and become centers catalysing the change in HD clinical management.