The evaluator doesn’t read your bid. They score it. It sounds harsh, but it’s worth keeping in mind before you spend weeks on a submission.
Most bids tick the boxes. The ones that score well do something different: clarity, structure, evidence, and commercial alignment. That’s what we’re going to cover here. We’ve written hundreds of construction bids, and the approach below is the one we use every time. If you want to understand [how we handle bid writing](https://callann.co.uk/bids/) more broadly, that page covers the full service. This post is the practical guide.
Step 1: Read the ITT Properly, Including the Scoring Matrix
Before you write a single word, read the Invitation to Tender (ITT) cover-to-cover. Not just the questions. The evaluation methodology, the scoring matrix, the weighting of each section, and any supporting documents.
This is where most bids are won or lost, and it happens before anyone writes anything.
The scoring matrix tells you exactly what the evaluator is looking for and how much each element is worth. If a question is worth 20% of the total score and asks for your approach to health and safety, then your health and safety response needs to be detailed, specific, and evidence-backed. Not a two-paragraph summary of your policy.
We read every question against the scoring matrix before drafting. It tells us where to spend the effort, what to evidence heavily, and what to keep concise. A question worth 5% doesn’t need three pages. A question worth 25% doesn’t need three paragraphs.
Step 2: Understand the Buyer’s Priorities
A bid isn’t about you. It’s about the buyer’s problem and how you solve it. That sounds obvious, but you’d be amazed how many bids we see that read like company brochures. “We were established in 2008, we’ve grown year on year, we pride ourselves on quality.” With barely a mention of what the buyer actually needs.
Read the specification carefully. What are they trying to achieve? What are their stated outcomes? What risks are they worried about? A housing association retrofit programme isn’t just looking for an installer. They’re looking for someone who can manage tenant liaison, minimise disruption, and deliver to PAS 2035 standards. A council framework for roof repairs wants reliability, responsiveness, and value for public money.
Your bid strategy should be built around the buyer’s priorities, not your capabilities list.
How to build a bid strategy
- Identify the top three things the buyer cares about (from the ITT, pre-tender meeting, or market engagement)
- Map each bid question to those priorities
- Structure every response around how you deliver against them
Step 3: Structure Your Responses Clearly
Evaluators are scoring dozens of bids, often under time pressure. If your response is well-structured, they can find the information they need quickly and score it confidently. If it’s a wall of text, they’ll struggle. And the score will reflect that.
Step 4: Use Evidence. Real Evidence.
Evidence is what separates a bid that scores well from one that scores adequately. Anyone can say “we have a strong track record of delivering similar projects.” The question is whether you can prove it.
Good evidence includes:
- Project examples with contract value, scope, duration, client name, and outcomes
- Performance data like accident statistics, defect rates, on-time completion rates, KPIs from existing contracts
- Client testimonials that are specific, verifiable, and relevant to the work you’re bidding for
- Certifications and accreditations including ISO, CHAS, Constructionline, SSIP, and any trade-specific certifications
The key is relevance. A testimonial from a commercial fit-out client isn’t much use in a bid for social housing roof replacements. Pick evidence that mirrors the contract you’re going for.
Step 5: Get the Commercial Alignment Right
Technical quality matters, but if your commercial response doesn’t align with the buyer’s expectations, you won’t win. No matter how good your methodology is.
This means:
- Pricing that reflects the scope – Not undercut to look competitive, not padded to protect margin.
- Clear payment terms aligned with the contract conditions, not your standard T\&Cs.
- Social value. Most public sector bids now weight social value significantly. If you’re not addressing local employment, apprenticeships, community investment, and supply chain engagement, you’re leaving points on the table.
- Sustainability. Increasingly scored separately, and increasingly important to buyers.
We see bids lose on social value more than anything else. Contractors who nail the technical response but treat social value as an afterthought. It’s often worth 10-20% of the total score, and in some sectors like housing and healthcare, even more. That’s the difference between winning and coming second.
Step 6: Review, Review, Review
The first draft is never the final draft. We write, then we review against the scoring matrix, then we review again for clarity and consistency, then we do a final read for typos and formatting.
A bid with inconsistent formatting, broken cross-references, or typos in the executive summary signals the quality of your work. It might not be fair, but evaluators are human, and first impressions count.
If you’re reviewing your own bid, use this checklist:
- Does every response directly answer the question asked?
- Does every response address the scoring criteria?
- Is evidence attached and referenced?
- Are the document references correct?
- Is the formatting consistent throughout?
- Is the bid within the word count (if specified)?
What We See When Bids Don’t Score Well
We’re often brought in to review bids that have been submitted and lost, to understand what went wrong. The patterns are remarkably consistent:
- Generic responses that could apply to any contractor
- No evidence, or evidence that doesn’t match the contract
- Social value treated as a box-ticking exercise
- Responses that don’t address the scoring criteria
- Formatting that makes it hard for the evaluator to find key information
None of these are difficult to fix. But they require discipline, time, and an understanding of how evaluation actually works. That’s what [bid writing](https://callann.co.uk/bids/) is, at its core. Not writing, but structured, evidence-based persuasion done against a scoring framework.
Want Help With Your Next Bid?
Whether you’ve got a bid coming up and want someone to handle it end to end, or you’ve been submitting bids and not winning and want to understand why, we can help. We’ll look at what you’ve been doing, where the gaps are, and what it would take to start converting.
Get in touch with our bid team, and we’ll talk through what you’ve got coming up and whether we can help. If we can’t, we’ll say so.
