AES Sustainability Consultants Ltd is a leading sustainability consultancy operating across the UK. From land acquisition to post-construction, we provide expert guidance and technical support, from Part L compliance to PassivHaus and PHPP consultancy to meet exemplar standards. Our commitment to your project’s success means we never compromise on quality or cut corners. Partnering with AES Compliance & Testing, we streamline on-site testing and inspections, offering services including airtightness testing, ventilation testing and thermal imaging across the country.