Our Elmhurst qualified, TrustMark registered Retrofit Coordinators, Assessors, Designers and Evaluators have the skills and experience necessary to enable our clients to achieve full compliance under PAS 2035:2023.
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Retrofit is central to the UK’s net zero strategy, with housing providers and local authorities facing increasing regulatory, funding and performance pressures. At Keegans, we deliver PAS 2035:2023 compliant retrofit services that help improve building performance, reduce delivery risk and support long-term decarbonisation strategies.
We combine over 30 years of refurbishment and building consultancy expertise with a fully in-house, TrustMark-registered retrofit team. Our specialists support clients from early feasibility and programme development through to TrustMark lodgement and post-completion evaluation, ensuring compliance, quality and measurable performance outcomes.
Our data-led and quality-assured approach helps future-proof housing assets against EPC reform, funding requirements and evolving decarbonisation targets.
Experienced PAS 2035 Retrofit Consultants
Keegans provides specialist retrofit consultancy services designed to support housing providers, local authorities and asset managers delivering large-scale retrofit programmes.
Our approach combines technical expertise, programme management and regulatory compliance to ensure retrofit projects are delivered safely, efficiently and in full alignment with PAS 2035.
Key advantages of working with Keegans include:
Our team works closely with clients to align retrofit strategies with asset management plans, funding opportunities and long-term carbon reduction targets.
Proven Retrofit Delivery Across the UK
Since the introduction of PAS 2035, Keegans has delivered retrofit consultancy and coordination services to more than 3,700 homes across the UK.
Our experience spans a wide range of building types and programme scales, including:
Recent programmes include major retrofit initiatives for Church of England, Milton Keynes Council’s Netherfield Estate, Abri Housing and the award-winning Wilmcote House EnerPHit retrofit in Portsmouth.
This breadth of experience enables us to tailor retrofit strategies to building typology, occupancy risk, funding constraints and long-term asset performance objectives.
Whole-House Retrofit Services Delivered Under PAS 2035
Our retrofit consultancy services are structured around the PAS 2035 framework, delivering a coordinated whole-house retrofit approach that balances energy performance, ventilation, resident comfort and long-term durability.
Our Retrofit Assessors undertake comprehensive property assessments to establish the evidence base for retrofit design.
Services include:
These assessments provide robust data to inform retrofit decisions and ensure compliance with PAS 2035 requirements.
Retrofit Coordinators provide the mandatory coordination role under PAS 2035, overseeing the retrofit process from initial assessment through design, installation and project completion.
Responsibilities include:
The Coordinator acts as the lead consultant for retrofit compliance and delivery quality.
Our Retrofit Designers translate assessment data into practical and buildable retrofit solutions.
Design development considers:
This ensures retrofit solutions are technically robust, deliverable and aligned with long-term asset strategies.
Our cost consultancy team provides financial modelling and investment analysis to support retrofit decision-making.
Services include:
This helps clients prioritise investment and maximise the value of retrofit programmes.
Data-Driven Retrofit Programme Management
Our retrofit services are delivered through a director-led governance model supported by robust digital systems that manage data from initial survey through to TrustMark lodgement.
We utilise industry-leading platforms including:
These systems ensure accurate data capture, transparent reporting and audit-ready documentation throughout delivery.
Clients benefit from live dashboards and reporting tools, providing real-time visibility of programme progress, risk management and compliance status.
Quality assurance is embedded through our ISO 9001-certified Quality Management System, with senior technical reviews, independent audits and structured sign-off processes.
Innovation That Adds Value
Keegans goes beyond regulatory compliance to deliver innovative retrofit strategies that improve programme efficiency and long-term performance.
Our innovation-led approach includes:
We actively support clients in preparing for future EPC reform, evolving retrofit funding criteria and long-term decarbonisation pathways.
In addition to residential retrofit programmes, Keegans also supports the decarbonisation of commercial and non-domestic buildings. Our team is qualified to deliver retrofit services in line with PAS 2038, the UK specification for improving the energy performance of commercial buildings.
We provide Commercial Energy Performance Certificates (EPCs) alongside technical advice on retrofit strategies for offices, public buildings, education facilities and mixed-use developments. By combining EPC assessment with retrofit expertise, we help clients identify practical energy efficiency improvements, comply with evolving Minimum Energy Efficiency Standards (MEES), and develop cost-effective pathways to reduce operational carbon and energy costs.
Our multidisciplinary team can integrate commercial retrofit advice with wider building consultancy services, ensuring that energy improvements align with asset management, refurbishment, and long-term net zero strategies.
Supporting Retrofit Funding and Compliance
Keegans has supported successful retrofit delivery across multiple national funding programmes, including:
Our team helps clients align retrofit strategies with funding requirements while maintaining compliance with PAS 2035, TrustMark and emerging regulatory changes.
This approach reduces programme risk and maximises the value of retrofit investment.
Retrofit Assessment and Coordination Service
Best Retrofit Employer Award
Retrofit Coordinator of the Year
Retrofit Assessor of the Year
What are the new PAS2035:2023 qualification requirements for Retrofit Assessors (RAs) and Retrofit Coordinators (RCs)?
Under the updated PAS2035:2023, Level 3 in Energy Efficiency for Older and Traditional Buildings is now a mandatory qualification for both Retrofit Assessors (RAs) and Retrofit Coordinators (RCs) when working with any traditional property. This ensures that professionals are properly trained to handle the unique challenges of retrofitting older and traditional buildings.
Under PAS2035:2023, what is the deadline for completing and fully installing projects such as ECO4, GBIS, HUGS, and self-funded initiatives?
All projects such as ECO4, GBIS, HUGS, and self-funded projects must be completed and fully installed by 30th March 2025. Additionally, lodgements must be carried out no later than 20 working days after installation.
Is PAS2035:2023 mandatory for all retrofit projects?
Yes, PAS2035:2023 is a mandatory standard for retrofit projects in the UK that aim to receive public funding or need to meet specific energy performance requirements under government regulations.
What are the key changes in PAS2035:2023 compared to the previous version?
PAS2035:2023 introduces new requirements for risk management, quality control, and energy performance assessments. It emphasises a more holistic approach to retrofitting, including considerations for occupant needs and long-term sustainability.
What does Retrofit mean?
The UK Government has identified the retrofit of buildings as a key lever in their low carbon strategy to achieve 68% carbon reduction by 2030. All affordable homes will be required to achieve a minimum EPC of C by 2030. All ECO funded refurbishment projects are required to achieve full compliance with PAS 2035:2019 from July 2021 with a 20% funding uplift for projects that comply before the deadline.
PAS 2035:2019 (Specification for the Energy Retrofit of Domestic Buildings) is revolutionising the refurbishment of buildings. Over the last 30 years energy efficiency programmes have focussed on single measures (i.e.: cavity wall insulation or window replacement, etc.) but all future programmes now require a holistic solution designed to suit the specific building type.
To comply with PAS 2035, a qualified Retrofit Coordinator must be employed to provide a 'Whole House Retrofit' solution.
What are the benefits of retrofit work?
Retrofitting existing buildings will allow individuals and businesses to save money and be more sustainable. It will let people across the UK live in warmer and healthier homes. Crucially, it will help our industry, and the country as a whole, decarbonise.
Services you may be interested in
We deliver flexible, tailored, results driven project management from experienced, dedicated professionals.
Key contact for this service
Sectors we work in
This is a core sector for us, working for numerous local authorities, housing associations, private managing agents and developers, ensuring residents are at the heart of every project.
Our team have considerable experience of construction and refurbishment projects for office and commercial use in a variety of settings and for varying uses.
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