Constructionline Gold vs Silver vs Bronze: Which Tier Do You Actually Need?

If a main contractor has told you to "get on Constructionline" and you're now staring at four paid tiers trying to work out which one gets you through the gate, the Constructionline Gold vs Silver vs Bronze decision is simpler than the pricing page makes it look. It isn't a quality ladder you climb for prestige. It's one question with a yes/no answer: does your buyer need you certified to the Common Assessment Standard? Everything else follows from that.

Last reviewed: 07/10/2026.

TL;DR

Constructionline Gold is the only subcontractor tier below Platinum that certifies you to the Common Assessment Standard — Build UK's published Recognised Assessment Body list shows Constructionline Gold as the desktop certification and Constructionline Platinum as the site-based one. Bronze is the cheapest verified tier and, like Silver and Gold, now includes SSIP health and safety from Once For All Health & Safety, so Bronze is enough when a buyer just wants to see you verified with current insurance and an SSIP. Silver sits awkwardly in the middle: it adds verified corporate and professional standing, but it is not aligned to the Common Assessment Standard, and Build UK's data-sharing guidance explicitly says Silver data is not shared with other assessment bodies. So: buyer wants CAS → Gold. Buyer wants a verified profile and SSIP → Bronze. Buyer named Silver specifically → Silver, and nothing else.

What are the Constructionline membership tiers?

Constructionline runs one free entry level and four paid, verified levels for subcontractors. Associate is data storage only — Constructionline's own Associate page says the data isn't verified and your profile won't appear in buyer searches, so it's a filing cabinet, not an accreditation. Bronze, Silver, Gold and Platinum are the verified tiers that a main contractor can actually see.

Do I need Gold if I'm not bidding for public work?

Not necessarily — but "public work" is the wrong test. The honest test is who is asking, and plenty of private tier 1 contractors ask for more than the public sector does.

On the public side, Build UK states that central government departments and wider public sector bodies should use the Common Assessment Standard to pre-qualify suppliers in accordance with PPN 03/24. Constructionline's own summary of that notice puts the Common Assessment Standard as the preferred pre-qualification method for public sector projects exceeding £5.337 million — a threshold most small subcontractors never bid at directly, though you can easily end up inside the supply chain of a project that does. As of 07/10/2026 Build UK still cites PPN 03/24 as the operative guidance; public procurement notice numbering has been reorganised since the Procurement Act 2023 came into force, so if a buyer quotes a notice number at you, ask them which one they're working to rather than assuming.

On the private side, the list of contractors and clients using the Common Assessment Standard published by Build UK includes Balfour Beatty, BAM Construction, Kier, Mace, Skanska, VINCI Construction UK, Wates and Willmott Dixon. None of that is public procurement law — it's a commercial requirement from the firm issuing your order. If one of those names, or a regional contractor copying them, is your route to work, Gold is the tier that answers it.

Why is Silver the trap tier?

This is the part that doesn't appear on the pricing page. Build UK's data-sharing overview for the Common Assessment Standard lists the products that data is shared from — Constructionline Gold (desktop) and Platinum (site-based) — and then states plainly that data will not be shared on products that are not aligned to the Common Assessment Standard, naming Constructionline Silver as an example.

That matters because data sharing is the mechanism that makes one annual assessment travel. Certify to the Common Assessment Standard with any Recognised Assessment Body and 33 key data points can be made visible in the portals of the others, so a contractor who runs its supply chain through a different body can still see you. Silver doesn't ride that rail. Neither does Bronze — but Bronze is honest about being the minimum paid tier, whereas Silver costs more than Bronze and still leaves you outside the standard that the big buyers actually specify.

Which tier does your buyer's wording point to?

A worked example: a 12-engineer M&E firm with two buyers

Say you run a 12-engineer electrical and mechanical firm. Two things are on the table: a bundle of recurring commercial maintenance contracts for a housing association, each worth around £5k a year, where the framework asks for "Constructionline verified with a valid SSIP"; and a fit-out package for a tier 1 contractor whose supply chain terms say Gold minimum.

If you buy only what the housing association asks for, Bronze clears it — verified profile, insurances, SSIP included, done. But the tier 1 package then needs a second purchase, and the Gold-only sections (environmental management, quality management, equal opportunity and diversity, corporate and social responsibility, Building Safety Act questions) still have to be answered from scratch. If instead you buy Gold once, both buyers are satisfied by a single annual assessment, and your Common Assessment Standard data can be shared into whichever Recognised Assessment Body each contractor happens to use.

The decision pivot isn't the sticker price. It's whether a CAS-level buyer is realistically in your next twelve months. If yes, Gold once beats Bronze-then-Gold. If every buyer you have only ever asks for SSIP and insurance, paying for Gold is paying for questions nobody is reading.

What does each tier actually cost?

Constructionline prices subcontractor membership by annual turnover band — its sign-up tool asks for your turnover from a list of bands starting at £0–74,999 and running up to £50m and above, and whether you already hold a valid SSIP. Prices are quoted excluding VAT and payment is taken annually. Because the figure depends on your band and tier, there is no single headline price to quote here: get your own quote from Constructionline's membership page and read our breakdown of Constructionline cost for subcontractors for how the bands behave. For the wider scheme picture, see our Constructionline explained guide to Bronze, Silver and Gold and the accreditation comparison hub.

What Gold actually commits you to each year

Certification to the Common Assessment Standard is an annual cycle, not a one-off. Build UK's guide to the question set says a certificate is valid for one year from issue, provided that any "time-critical" documents are updated when they expire — so an insurance certificate lapsing mid-year is a live problem, not a renewal-day problem. Build UK's site also notes that the current question set is Version 5, with Version 6 due to be published on 1 November 2026, so expect fresh questions and fresh evidence requests at your next renewal.

1. 1
   Confirm the requirement. Get the tier name and whether CAS is needed, in writing, from the buyer.
2. 2
   Pick the tier that clears the highest bar you'll face this year. Not the cheapest; not the shiniest.
3. 3
   Gather evidence once. Insurance, health and safety policy, training records, RAMS, environmental and quality statements for Gold.
4. 4
   Diarise expiry dates, not just the renewal. Certificates expiring inside the year can drop your verified status.

That last step is where small firms lose verified status — and with it, the searchable profile the buyer is checking. TradeComply tracks every accreditation you hold, sends renewal reminders at 60, 30 and 7 days by email and calendar, keeps your insurance, RAMS and training records in one evidence vault with expiry dates on the documents themselves, and gives you a share link so a contractor sees current certificates without an email chain. One price, £9.90 a month or £99 a year, everything included — see pricing. For the deadline mechanics across schemes, read our guide to accreditation renewal deadlines.

Frequently Asked Questions

Do I need Constructionline Gold if I'm not bidding for public work?

Only if a private buyer asks for it — and many do. Build UK lists major contractors and clients including Balfour Beatty, Kier, Skanska, VINCI Construction UK and Wates as using the Common Assessment Standard, and Constructionline Gold is its CAS desktop certification. If none of your buyers mention CAS or Gold, Bronze is the cheaper verified route.

Does Constructionline Bronze include SSIP?

Yes. Constructionline states that SSIP is now included across its Bronze, Silver, Gold and Platinum memberships, delivered by Once For All Health & Safety, and that if you already hold an SSIP certificate you can show it via Deem to Satisfy. Do not rely on older articles claiming Bronze sits outside SSIP.

What is the difference between Constructionline Silver and Gold?

Silver adds verified corporate and professional standing on top of Bronze. Gold adds the Common Assessment Standard question set and Building Safety Act assessments, and — unlike Silver — Gold data is shared through Build UK's data-sharing solution with other Recognised Assessment Bodies.

Can I upgrade from Bronze to Gold part way through the year?

Constructionline's membership FAQ says you can upgrade at any time via Manage Account and that the remaining balance of your current membership is credited against the new one. You will still need to complete and submit the additional Gold sections for verification.

Is Constructionline Gold the same as the Common Assessment Standard?

Not quite — Gold is one route to it. Build UK recognises several assessment bodies for the Common Assessment Standard, with Constructionline Gold as the desktop level and Constructionline Platinum as the site-based level. Our guides on Constructionline Gold vs the Common Assessment Standard and the Common Assessment Standard explained cover the distinction in detail.

This guide is informational only and reflects published scheme and Build UK material as at 07/10/2026. Tier contents, question sets and buyer requirements change — confirm the current position with Constructionline or your buyer before you pay for anything.