How to win work as a subcontractor: getting onto tender lists
The short answer
Subcontractors get onto tender lists by being easy to verify: current accreditations, insurance certificates, relevant completed schemes with values, and a capability statement available without asking. Most buyers check a subcontractor's website before making contact, so credentials that are missing or buried quietly cost places on lists you never hear about.
What main contractors and buyers actually check before adding a subcontractor to a list, and how to make that decision easy.
Subcontract work does not usually come from marketing. It comes from being on a list, and lists are built by buyers, estimators and quantity surveyors doing quick checks on candidates.
Understanding that check is most of the job.
What does a buyer actually do?
Roughly this, in a few minutes:
- Search your company name
- Open your website and look for sector relevance and scale
- Look for accreditations and insurance levels
- Check Companies House for filing history and accounts
- Decide whether to send you a pre-qualification questionnaire
If step two takes longer than about a minute, plenty of them stop. There are other names on the list.
What they need to see immediately
- Sectors you work in. Education, healthcare, industrial, residential, retail, and so on
- Contract values you handle. A band is fine. "Projects from £50k to £800k" tells them whether you fit
- Accreditations. CHAS, Constructionline, SafeContractor, ISO, trade bodies. With numbers and expiry dates
- Insurance levels. Public liability, employers liability, professional indemnity where relevant
- Geographic coverage. Where you actually travel to
- Recent schemes. Client, value, duration, scope, and a photo
Most subcontractor websites show a homepage slideshow and a contact form. That is a brochure, and it fails the check.
Write a capability statement and publish it
One or two pages: who you are, what you do, sectors, values, accreditations, insurance, key personnel, three reference projects, contact details.
Put it on the site as a downloadable PDF that does not require an email address. A buyer working to a deadline will not fill in a form to get it, and gating it costs you more than the email address is worth.
Case studies are the strongest asset you have
Not a gallery. A short structured write-up per scheme:
- Client and main contractor
- Contract value or band
- Programme length
- Scope of your package
- Any constraint you worked around: occupied site, phased handover, restricted access
- Photos
Six of these do more for supply chain work than any amount of marketing copy, because they let someone judge whether you can handle their job.
Get on the frameworks and portals
Constructionline, Achilles and the main contractors' own supply chain portals are where a lot of opportunity is allocated. Registering is administrative work rather than skilled work, and most firms simply never get round to it.
Find the Tender and Contracts Finder cover public sector opportunities and are free to search. Set up alerts for your trade and region.
Build relationships with estimators, not just buyers
Estimators decide who gets asked to price. Being the subcontractor who returns a clear, complete quote quickly, with exclusions stated plainly, gets you asked again.
Quote quality is underrated as a business development tool. A tidy, unambiguous quotation makes an estimator's day easier, and easy is memorable.
Keep your filings clean
Buyers check Companies House. Late filings, a dormant year that looks odd, or accounts that suggest you cannot carry the contract value will get you filtered out silently.
If your accounts understate what you can handle, be ready to explain it, and consider what you publish about turnover on your own site.
The short version
Make the decision easy. Sectors, values, accreditations, insurance and recent schemes, all findable in under a minute, plus a capability statement anyone can download. That is what gets you onto lists you are currently missing without ever knowing.
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