Why ESG Now Decides Who Wins Construction Tenders

Across the UK, expectations around sustainability have shifted from “good practice” to business critical.  89% of UK SMEs now check a supplier’s sustainability credentials before working with them, and sector research from BDO shows construction contracts are increasingly awarded based on lowest carbon emissions rather than lowest cost.

The message is clear:  ESG is no longer a nice-to-have but a real revenue driver (or blocker) for businesses.

So what can construction firms do?

1. Understand (and own) your Scope 3 emissions

According to Sustain IQ, Scope 3 emissions typically account for over 70% of a construction company’s carbon footprint, from materials and transport to subcontractor activity. These are the emissions most tender evaluators now scrutinise.

To stay competitive, firms need to:

• Map Scope 3 hotspots across projects and the wider supply chain
• Work to PAS 2080 principles for consistent carbon management
• Improve data collection and reporting quality, not just estimates
• Demonstrate year-on-year reductions with clear evidence

Better data equals stronger bids. Without it, you risk losing out on contracts that could have been well within reach.

2. Don’t skip the ‘S’ and ‘G’ in ESG

Whilst carbon is climbing every procurement agenda, public-sector buyers increasingly expect a holistic approach. Under the UK Social Value Model, tenders often include:

• A minimum 10% weighting for social value
• Requirements around local employment, skills and training
• Ethical supply chain management
• Community impact and wellbeing
  

Construction can no longer rely on environmental credentials alone. Strong social and governance performance now drives differentiation, especially in tied or high-value tenders.

3.  Be “report ready” (even when it’s not asked for)

Even when tenders don’t explicitly request a carbon section, decision-makers are still looking. 

Reports show that 89% of small businesses regularly check sustainability credentials of suppliers before deciding to work with them. 

They’re looking for things like credible carbon reduction plans (such as those built and tracked through Flotilla’s advanced AI-driven platform), measurable progress against targets and transparent reporting (aligned to the recognised frameworks).

Make it easy for buyers to say yes. Keep your ESG report and credentials visible on your website, link to them in tender responses, and even consider including them in your email signature. 

Being report-ready signals maturity, reduces friction in the tender process, and builds immediate trust.

4.  Higher value contracts demand higher standards

Winning the toughest contracts often means proving more ambitious sustainability performance. 

A UK piece on energy efficiency by Food and Drink Manufacturing UK notes that investing in sustainability is vital “to maintain competitiveness and retain hard-won contracts.” as reducing operational emissions and energy use is increasingly tied to contract retention, not just acquisition.

Public-sector buyers have strengthened this further through PPN 006 (previously called PPN 06/21) which requires a compliant carbon reduction plan for major contracts.

To compete at the top of the market, construction firms need to show:

• Competitive carbon baselines
• Concrete actions, not just commitments
• A clear plan to deliver reductions during the contract lifecycle

5.  There’s real profit in getting ESG right

Beyond winning tenders and maintaining compliance, ESG makes real commercial sense. Construction firms see direct benefits such as lower energy and fuel costs,  stronger talent attraction and retention and better risk management across supply chains

ESG isn’t the cost centre it’s often seen to be, it’s an investment in long-term competitiveness and reduced business costs.

Start your ESG journey with Flotilla

At Flotilla, we’ve helped construction firms of every size win more tenders, strengthen compliance, and reduce business costs through our smart carbon management platform and expert climate advisors.

Book a free consultation today to find out how we can support your next tender and help you achieve your long-term sustainability goals.