Hybrid - Expectation to work from our Cardiff office twice per week, with site visits as required for operational delivery
Salary:
Up to 30,000 per annum (full-time)
Contract:
Permanent, full-time. Flexible hours and working patterns available - we're open to arrangements that support childcare, caring responsibilities, or other personal needs.
About Us
At Sero, we're working to make zero carbon homes a reality. We collaborate with housing providers, residents and industry partners to transform homes and communities through meaningful, sustainable retrofit solutions.
About the Role
We're looking for a qualified Retrofit Assessor to join our growing Retrofit Coordination team. As a Project Coordinator - Retrofit Assessor, you'll help deliver high-quality Medium Term Retrofit Plans (MTRPs) that are compliant with PAS 2035 and tailored to individual homes.
You'll play a central role in making our retrofit projects both technically accurate and practically effective. From reviewing assessments and addressing data gaps, to preparing clear technical write-ups and coordinating across teams, your work will ensure every plan stands up to scrutiny and supports real-world delivery.
If you've got strong technical knowledge, a structured approach, and a passion for making homes better, we'd love to hear from you.
How You'll Help
You'll be involved across all stages of retrofit planning, helping to keep things compliant, consistent and high quality. That includes:
Delivering PAS 2035-compliant documentation by following established internal processes
Working with Team Leaders to prioritise homes for MTIPs
Reviewing Retrofit Assessments, surveys and post-install packs to spot and fix errors
Filling data gaps using trusted online sources or SAP-compliant assumptions
Drafting clear technical write-ups, covering:
+ Sequencing logic
+ Assumptions and caveats
+ Previous retrofit history
+ Any remedial works needed Creating and updating MTIPs using internal tools and software
Uploading accurate project information via the TrustMark data warehouse
Tracking key metrics and performance data to support planning
Staying up to date on PAS 2035, SAP and wider industry guidance
Collaborating with technical colleagues to develop tailored retrofit solutions
Supporting continuous improvement by suggesting better ways of working
Managing your own workload to meet weekly and strategic delivery targets
Supporting onsite inspections where needed
What You'll Bring
This is a role for someone with a strong technical grounding in retrofit and a keen eye for detail. You'll be confident working with data and documentation, and equally comfortable collaborating with colleagues across multiple projects.
We're looking for someone who has:
Qualification as both a Domestic Energy Assessor (DEA) and Retrofit Assessor
Working knowledge of PAS 2035 and its application in domestic retrofit
Understanding of SAP methodology and retrofit sequencing
Experience reviewing or producing technical reports and PAS-compliant documentation
Strong Excel skills (including pivot tables, charts, lookups and Power Query)
A full UK driving licence
You'll thrive in this role if you:
Have excellent attention to detail and a structured approach to documentation
Enjoy taking initiative and solving problems independently
Are confident managing your own time and priorities
Communicate clearly, especially when explaining technical detail
Work well in a collaborative team and are open to sharing ideas
Care about sustainability and the positive impact retrofit can have on homes and communities
More Information
Diversity:
We actively welcome applicants from all backgrounds and identities. If you need adjustments to the application or interview process, just let us know - we're here to help.
Working Hours:
Full-time at Sero means 37.5 hours per week, Monday to Friday, worked flexibly between 7am and 7pm. We're happy to consider part-time options too - let us know what works best for you.
Location:
You'll work from our Cardiff office two days per week and may need to travel for site visits. The rest of the time, you can work from wherever suits you best.
Perks:
27 days annual leave (plus bank holidays), rising to 28 after 3 years
Paid 4-week sabbatical after 5 years of service
Private healthcare with Bupa (with optional family cover at reduced rates)
Pension scheme: 6% employer contribution with 3% from you
Income protection - 75% salary cover for up to 5 years for long-term illness
Share option scheme after 12 months
Help@Hand EAP with 24/7 GP access and wellbeing support
Generous family-friendly policies
Dog-friendly office
Bike2Work scheme
16 hours of paid volunteering time annually
Fully stocked office kitchen and FOR Cardiff membership for local discounts
Weekly protected learning time and support for your development
And of course -- you'll be doing all this while helping to save the planet.
Ready to apply?
If this sounds like the role for you, send us your CV along with a short cover letter telling us why you'd be a great fit for Sero.
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