Existing Buildings
We provide energy-efficient solutions to optimise the sustainability of domestic and non-domestic buildings, helping improve your existing plans.Â
Sustainable Building Solutions
As sustainability pioneers, AES supports clients in unlocking the full potential of their existing building stock through intelligent, energy‑efficient solutions. We work collaboratively with building owners, asset managers, contractors, consultants and design teams, across both the public and private sector, to enhance performance, reduce carbon emissions, and future‑proof assets as part of any retrofit or refurbishment project.
Our approach balances technical excellence with practicality, ensuring measurable improvements in energy efficiency, occupant comfort and long-term operational value of assets. Â
Our experienced team offer a comprehensive suite of services tailored to existing buildings, providing the insight needed to develop robust, compliant and cost-effective sustainability strategies. These include detailed Energy Surveys to establish baseline performance, PAS 2035 and PAS 2038 retrofit assessments to support compliant domestic and non‑domestic upgrades, and Domestic EPCs to meet statutory and funding requirements. We also undertake Low and Zero Carbon feasibility studies, helping clients identify viable technologies and phased interventions that support net zero ambitions while aligning with budget, programme, and building constraints.
Through evidence-based analysis and a whole‑building approach, AES ensures that sustainability improvements are not only technically sound but also aligned with wider environmental, regulatory, and commercial objectives—delivering lasting value across the lifecycle of your existing buildings.
Key Services
EPCs
Demonstrate your building's energy performance.
Air Tightness Testing
Achieve compliance with our UK wide air tightness testing.
PAS 2035 Retrofit Services
Sustainable solutions that ensure full compliance with PAS 2035 guidelines.
Decarbonisation
Ensure compliance and demonstrate effective decarbonisation through thoughtful and sustainable design.
Contact
Contact us to discuss your project needs or to learn more about our services.
Projects
Cambridge Housing Society (CHS): SHDF Project
AES with our partner McBains, were appointed to produce a net zero carbon investment plan for CHS, for all properties to be decarbonised by 2045 and to achieve EPC C across the stock by 2030.
Blackberry Hill Hospital, Vistry Partnerships Blackberry Hill is a complex mixed-use regeneration project involving new build and refurbishment elements.
Legal & General Homes, Buckler's Park The development is built to Part L 2013 with 19% site-wide carbon emissions savings from renewables.
Cambridge Housing Society (CHS): WH:SHF Project AES, alongside McBains, were appointed to produce a net zero carbon investment plan for CHS.
Knowledge Centre
We have collated a selection of articles from our experts, offering valuable insights and practical advice. Browse through these resources to stay informed and gain expert perspectives on key topics.
Other services
Overheating
Mitigate overheating risks and ensure energy-efficient, compliant buildings.
EPCs
Demonstrate your building's energy performance.
Air Tightness Testing
Achieve compliance with our UK wide air tightness testing.
Photographic Evidence
Showcase your energy efficiency and meet new compliance standards.
Whole Life Carbon
Understand your development's whole life carbon impact.
Psi Value Calculations
Calculate Psi values to help eliminate risks of cold bridging and boost your SAP calculations.
U Value Calculations
Attain optimal energy efficiency with precise U Value calculations for your building projects.
PAS 2035 Retrofit Services
Sustainable solutions that ensure full compliance with PAS 2035 guidelines.
Decarbonisation
Ensure compliance and demonstrate effective decarbonisation through thoughtful and sustainable design.
Sound Insulation Testing
Achieve compliance and demonstrate effective sound design.
Domestic Ventilation Commissioning
Ensure optimal airflow and meet domestic ventilation compliance standards.
Water Efficiency Calculations
Minimise water usage and guarantee compliance.
Quick links
Address
AES Sustainability Limited
4b Oaklands Court
Tiverton Way
Tiverton Business Park
Tiverton
Devon EX16 6TG
Contact
01884 242050
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