What Is Constructionline? The Tiers, the Cost and Which One You Actually Need

If a main contractor has emailed you saying "we need you on this before you set foot on site", you're probably three tabs deep into a website that sells you four membership levels without ever plainly telling you which one the contractor meant. This guide fixes that. Last reviewed: 10/09/2026.

TL;DR

Constructionline is not an accreditation in the way CHAS or SafeContractor are — it is a buyer-facing supplier database with verification tiers bolted onto it, run as part of the Once For All group. Paid membership comes in four verified levels (Bronze, Silver, Gold, Platinum), and SSIP health and safety certification is now included as standard across all four, so the old "is Bronze SSIP?" argument is dead. The only tier that carries the Common Assessment Standard is Gold (desktop level) or Platinum (site-based), and that is almost always what a main contractor actually means when they say "we need you on the platform". Fees are set by your annual turnover band, with membership starting from £399 a year plus a one-off joining fee in year one, excluding VAT, according to Constructionline's own supplier FAQs. The catch nobody spells out: your existing SSIP certificate can shortcut the health and safety section, but it does not shortcut the rest of Gold — Gold requires you to complete the full Common Assessment Standard question set, and that requirement sits entirely outside SSIP mutual recognition.

What is Constructionline, actually?

Constructionline is a pre-qualification platform: you upload your company information once, Constructionline's team verifies it, and registered buyers — main contractors and public sector bodies — search that database when they're building a supply chain. Constructionline states that its platform holds over 30,000 pre-qualified suppliers across more than 4,800 work categories, and that around 10,000 buyers from roughly 3,800 organisations have access to it (Constructionline supplier FAQs).

That distinction matters for how you spend your money. CHAS, SafeContractor and SMAS Worksafe are primarily assessment schemes — they judge you and issue a certificate. This platform is a database that also assesses you. You are buying two things at once: a verification badge, and visibility to buyers who search it. If a specific main contractor has told you to get on it, you're buying the badge and the visibility is a bonus. If nobody has asked, you're buying a marketing channel — and that's a different decision.

What do the Constructionline tiers actually verify?

There is a free Associate level, which is unverified and only makes you searchable by company name, and then four paid verified levels. Here is what each one adds, taken from the platform's subcontractor membership page.

What is the difference between the tiers?

For what Gold specifically costs and whether it earns its keep, see Constructionline Gold cost and requirements, and for the Common Assessment Standard question set itself, see the Common Assessment Standard explained.

Is Constructionline an SSIP scheme?

Yes — in the sense that every paid membership now bundles an SSIP health and safety certification from Once For All Health & Safety. The platform's own FAQ is unambiguous: SSIP is included across Bronze, Silver, Gold and Platinum, and if you already hold an SSIP certificate from another scheme you can bring it across using Deemed to Satisfy (Constructionline sub-contractor memberships).

This is the single most out-of-date thing still floating around on trade forums. Plenty of pages still say Bronze isn't SSIP-approved. As of 07/08/2026, that is wrong.

Deem to Satisfy is the SSIP forum's mutual recognition mechanism: SSIP explains that an existing certificate from one registered member scheme can be used to meet another member scheme's requirements without a full re-assessment (SSIP Deem to Satisfy). The Health and Safety Executive backs the same principle, stating that as a supplier you should only need to be assessed against one SSIP member scheme (HSE, health and safety conformity assessment schemes).

But mutual recognition only reaches the health and safety element. It does not extend to the rest of the Common Assessment Standard question set that Gold requires — financials, corporate standing, equal opportunities, environmental and Building Safety Act evidence all still have to be submitted and assessed fresh, regardless of what SSIP certificate you're carrying in.

How much does Constructionline cost for a subcontractor?

Constructionline prices by annual turnover band, not by headcount or trade. The signup tool runs from a 0–£74,999 band up to £50m and above, and the published FAQ states that annual membership starts from as little as £399 a year, that there is a one-off joining fee for new members based on your turnover band, and that from year two onwards you pay the annual fee only. All prices shown exclude VAT (Constructionline supplier FAQs, checked 07/08/2026).

Constructionline does not publish a static price table — the figures only appear once you've picked a turnover band and answered whether you already hold an SSIP. So the honest answer to "what will it cost me" is: get the quote from the turnover selector before you budget, because a £120k sole trader and a £4m contractor are looking at very different numbers for the same badge. For the full breakdown by turnover band and a worked cost comparison against the other schemes, see Constructionline cost. TODO(verify): per-band joining and annual fees, if and when Constructionline publishes them statically.

Which tier does my main contractor actually mean?

Nine times out of ten, "get on Constructionline" means Gold. Here's the translation table.

Constructionline confirms the mapping directly: for the desktop standard you need to be verified to Gold with the Common Assessment Standard question set, and for the on-site standard you need Platinum. For more on what that question set actually covers, see the Common Assessment Standard explained.

A worked example

Say you run a 12-engineer mechanical and electrical firm turning over roughly £850,000, and you already hold a current SSIP certificate from another member scheme. A main contractor asks for Constructionline Gold before awarding a recurring commercial maintenance package.

What actually happens:

1. 1
   You land in the £700,000–£999,999 turnover band. That sets both the one-off joining fee and the annual fee. Pull the live quote rather than assuming.
2. 2
   Your existing SSIP is recognised. You declare it at signup and go the Deemed to Satisfy route instead of sitting a second health and safety assessment. SSIP also notes that SSIP certification is recognised as an exemption against Section 4 (Health and Safety) of the Common Assessment Standard (SSIP on mutual recognition).
3. 3
   You still have to complete everything else. The Common Assessment Standard question set is split into ten sections covering identity, financials, corporate standing, equal opportunities, environmental, quality, and a Building Safety section — and health and safety is only one of them. Your SSIP buys you one section, not the certificate.
4. 4
   You get one renewal date. Certification against the Common Assessment Standard is annual, and Constructionline payments are taken annually.

That step three is the bit most subcontractors mis-budget. They hear "my SSIP counts" and assume Gold is a formality. It isn't — the financials, corporate standing and building safety evidence is where applications stall.

What doesn't this solve?

This is where a neutral read earns its keep. The platform genuinely does reduce duplication — the Common Assessment Standard exists precisely for that reason. Build UK, which developed the standard, says companies are certified once a year by a Recognised Assessment Body and that certification is accepted by a growing list of contractors and clients who no longer specify a particular assessment body; central government and wider public sector bodies are directed to use it under PPN 03/24 (Build UK, Common Assessment Standard).

But three things survive all of that, and they're the ones that actually eat your evenings:

1. Renewal dates that don't line up. Your Constructionline membership, your insurance certificates, your electrical scheme registration and your training cards all expire on different days. Miss one and your verified status drops — which buyers can see. We cover the practical fix in tracking accreditation renewal deadlines.
2. Re-uploading the same evidence to each portal. Deem to Satisfy handles the health and safety assessment. It does not handle your employers' liability certificate, your latest accounts or your equal opportunities policy landing in three different portals in three different formats.
3. The non-mutually-recognised tiers. SSIP mutual recognition covers the health and safety element and nothing beyond it. Constructionline Gold, the wider Common Assessment Standard question set and client-specific PQQs sit outside it entirely — see what SSIP mutual recognition does not cover.

If you're still weighing this against the alternatives rather than responding to a specific request, start with our neutral comparison of the main UK accreditation schemes and the head-to-head on CHAS vs SafeContractor vs Constructionline.

Frequently Asked Questions

Is Constructionline the same as an SSIP accreditation?

No, but every paid membership now includes one. It's a pre-qualification database with verification tiers; SSIP is a health and safety assessment standard, and it bundles an SSIP certification from Once For All Health & Safety across its Bronze, Silver, Gold and Platinum levels.

Does Constructionline Gold require the Common Assessment Standard?

Yes. Gold is Constructionline's desktop route through the Common Assessment Standard question set, and Platinum adds a site-based audit on top. This requirement is separate from SSIP — an existing SSIP certificate only covers the health and safety section of the standard, not the financials, corporate standing or Building Safety Act evidence that Gold also assesses.

Do I need Constructionline if I already have CHAS?

Only if a buyer specifically asks for it. If they do, your existing CHAS SSIP certificate should be recognised through Deem to Satisfy so you don't repeat the health and safety assessment — but you will still need to complete the remaining Constructionline requirements for whichever tier they've asked for.

Which Constructionline tier gives me the Common Assessment Standard?

Gold gives you the desktop level of the Common Assessment Standard and Platinum gives you the site-based level, which includes a one-day premises audit. Bronze and Silver do not include the Common Assessment Standard.

How much does Constructionline cost for a small subcontractor?

Fees are banded by annual turnover. Constructionline's supplier FAQs state that annual membership starts from as little as £399 a year excluding VAT, with a one-off joining fee in year one based on your turnover band, and the annual fee only from year two onwards.

How often do I have to renew Constructionline?

Annually. Constructionline takes payment annually by card or direct debit, and Build UK states that Common Assessment Standard certification is issued once a year by a Recognised Assessment Body, so your Gold or Platinum status needs re-evidencing every 12 months.

This page is informational and isn't legal or compliance advice. Scheme tiers, question sets and fees change — check directly with Constructionline or the scheme concerned before you commit money to a particular route.