The authors note that the small scale of the study means that the findings should be regarded as indicative only. The literature review confirmed the importance of reducing relative humidity levels to a target of 50% or lower to control mites and the allergens they produce and the need to consider microclimates inside properties. It also established that the precise nature of measures for controlling mites is not known but that packages rather than individual procedures seem to be more effective.

Medical data collected a year after the modifications showed clear evidence of positive health benefits, including improved lung air flows and reduced use of medication. In six of the seven properties, levels of dust mites dropped significantly. This was attributed to reductions in relative humidity that averaged 8.5%. The study confirmed previous research that concluded that establishing an average relative humidity of below 50% appeared to be key for controlling mite levels. Improved health outcomes are not an inevitable consequence of energy efficiency measures; ventilation must also be factored in.

Although all the homes achieved higher National Home Energy Ratings, which predicted a considerable drop in energy costs, energy consumption actually rose after the modifications. The modifications were often not fitted properly owing to the inadequate expertise of the installers. Overall, the project showed that health improvements can be achieved cost-effectively, although it was not possible to definitively identify the optimal package.