Procuring a contractor for a school, council building, healthcare facility, or other public sector asset isn’t the same process as a private landlord picking a contractor off a recommendation. Public money comes with obligations around fairness, transparency, and value that don’t apply in the same way to a private commercial client. This guide covers what those obligations actually mean in practice — accreditations, social value, contract forms, and the questions worth asking before you appoint anyone.
Why Public Sector Procurement Is Different
A private commercial client can appoint a contractor largely on relationship and reputation. Public bodies are held to a higher standard: spending decisions need to be defensible, competition needs to be fair, and increasingly, contracts need to demonstrate wider benefit to the community, not just value for money on paper. That’s a different exercise from simply comparing quotes. For a broader look at choosing a contractor generally — accreditations, directly employed staff, live-environment experience — our commercial construction buyer’s guide and our guide to choosing a refurbishment contractor in the South West cover that ground. This piece focuses specifically on what changes when the client is a public sector body.
Accreditations Worth Asking For
Independent accreditations exist precisely so a public sector buyer doesn’t have to take a contractor’s word for its own competence. The main ones to look for:
- CHAS (Contractors Health and Safety Assessment Scheme) — independently verifies health and safety management.
- SSIP (Safety Schemes in Procurement) — a recognised umbrella standard that many public frameworks accept as proof of health and safety competence.
- Constructionline Gold — a higher-tier pre-qualification standard covering financial standing, health and safety, and quality management, often used as a shortcut through PQQ stages on public frameworks.
- NICEIC — specifically verifies electrical competence, relevant on almost any refurbishment or fit-out involving M&E work.
Mobius’s own accreditation list, published on its About Us page, includes CHAS, SSIP, Constructionline Gold, NICEIC, UKAS, and a Social Value credential — worth checking as a baseline for any contractor you’re evaluating for public sector work.
Social Value: Why It’s Now Part of the Scoring, Not an Add-On
Since the Public Services (Social Value) Act 2012, public bodies in England have had a legal duty to consider economic, social, and environmental wellbeing when procuring services contracts above certain thresholds — not just lowest price or most economically advantageous tender on cost and quality alone. The Procurement Act 2023 built on this further, giving public buyers more scope to weight social value explicitly in award criteria.
In practice, that means a contractor’s community commitments — local employment, apprenticeships, charitable partnerships, environmental initiatives — can genuinely affect who wins a public sector tender, not just who delivers it best on paper. It’s worth asking a prospective contractor what they actually do here, rather than accepting a generic policy statement. You can see the kind of activity this covers on Mobius’s own Giving Back page.
Contract Forms: JCT and NEC4
Most public sector construction and refurbishment work in the UK is delivered under one of two contract families. JCT (Joint Contracts Tribunal) forms are the more traditional choice for building works and are widely understood across the industry. NEC4 (New Engineering Contract) forms are built around collaborative risk management — early warning mechanisms, structured change control — and are increasingly the preferred choice on public sector frameworks, particularly for larger or more complex projects. A contractor that only works confidently under one of the two is a narrower fit for public sector work than one comfortable administering both, since the form is usually set by the client’s framework rather than negotiable project to project.
Framework Routes vs Open Tender
Many public bodies procure construction and refurbishment work through pre-established framework agreements rather than running a fresh open tender for every project. Frameworks pre-qualify a pool of contractors against accreditation, financial, and capability criteria, so individual projects can be awarded through a lighter-touch mini-competition rather than a full open tender through the UK’s Find a Tender Service each time. Constructionline Gold and similar pre-qualification standards exist largely to make that framework route faster for both sides. If you’re a public sector buyer without an existing framework in place, it’s worth asking a shortlisted contractor which frameworks they already sit on, and what their experience of mini-competition bidding looks like.
Safeguarding and Working in Occupied Public Buildings
Public sector buildings are very often occupied throughout the works — pupils in classrooms, patients in a healthcare setting, staff and visitors in a council building. Our own guide to planning a commercial building refurbishment flags this directly: sensitive environments like schools, healthcare facilities, and public sector buildings carry additional safeguarding and security requirements beyond a standard commercial fit-out — DBS-checked site staff, controlled access routes kept separate from public areas, and programmes built around the building’s operating hours rather than the contractor’s convenience. This is worth confirming specifically, rather than assuming a contractor’s general commercial experience automatically covers it.
Questions to Ask Before You Procure
- Which accreditations do you hold, and are they current — CHAS, SSIP, Constructionline Gold, NICEIC?
- Are your contracts managers and quantity surveyors directly employed, or subcontracted?
- Do you have demonstrable experience under both JCT and NEC4 contracts?
- What social value can you evidence beyond a policy document — local jobs, apprenticeships, community partnerships?
- What frameworks do you already sit on, if any, and what’s your experience of mini-competition bidding?
- What’s your specific approach to safeguarding and DBS checks when working in an occupied school, healthcare, or public building?
- What project value range do you typically operate in, and does that match the scale of this project?
Where Mobius Fits
Mobius Group is a Bristol-based main contractor delivering construction, fit-out, refurbishment, and facilities management projects from £50K to £5m across the South West, with a wider reach for larger or repeat clients. Every project is run by a directly employed contracts manager and site supervisor, backed by an in-house quantity surveyor, and delivered under both JCT and NEC4 contracts. You can see the current project range on our Projects page, or get in touch to talk through a public sector project you’re planning to procure.