Marshalls Register of Approved Contractors: What Registration Requires, Benefits and Marshalls Guarantee

Quick Answer: The Marshalls Register is a vetted directory of paving and landscaping contractors who have undergone background checks, financial assessment, on-site quality inspections, and customer reference verification. Registered Installers can offer a 10-year Marshalls Product and Installation Guarantee — a back-to-back warranty backed by Marshalls plc — provided they install Marshalls-supplied products to BS 7533 specifications.

Summary

The Marshalls Register sits in a small group of installer schemes that genuinely add value rather than functioning as a paid logo. Marshalls invented the modern domestic paving guarantee model in the 1990s and has steadily tightened the entry criteria since then. Today there are roughly 130 Marshalls Register Approved Installers in the UK, plus a larger group of Marshalls Accredited Installers (a lower tier focused on training rather than full vetting).

For homeowners choosing a paver, the Register is one of the few credible third-party signals that a small contractor has been independently checked. For paving firms, joining the scheme is significant work — six months from application to acceptance is typical — and the ongoing membership cost has to be earned back through guarantee-backed jobs and the lead generation that comes with the listing on marshalls.co.uk.

This article covers what registration actually entails, what the guarantee covers and excludes, how the Register compares to the older Accredited tier and to competitor schemes (Brett Approved, Tobermore Approved Installer Network), and the commercial calculus on whether registration is worthwhile.

Key Facts

• Two Marshalls schemes — Marshalls Register Approved (vetted, full guarantee) and Marshalls Accredited Installer (training-based, no guarantee)
• Vetting steps for Register — financial check (Experian-equivalent), insurance audit, on-site inspections of recent work, customer references, technical interview
• 10-year guarantee headline — covers product defects and installation workmanship for ten years from completion
• Annual membership fee — circa £600–£900/year (varies by tier and region) plus a one-off application fee
• Geographic exclusivity not guaranteed — Marshalls does not promise Register Installers will be the only one in an area
• BS 7533-1 to 13 compliance required — installation must follow the relevant code of practice for the surfacing type
• Marshalls products only — guarantee voids if non-Marshalls paving, jointing, or kerbs are substituted
• Customer must register — homeowner registers the guarantee online within 30 days of completion via the Marshalls Customer Care portal
• Insurance backing — Marshalls underwrites the guarantee directly; not a third-party insurer
• Workmanship element — covers settlement, lifting, breakage from inadequate sub-base or edge restraints
• Guarantee transferable — guarantee transfers with the property to a new owner (a strong selling point on house sales)
• Dispute resolution — Marshalls technical inspector visits site if contractor and customer dispute a claim
• CITB-style training requirement — Register Installers attend annual technical updates
• Visual logo standards — branded vehicles, signage, paperwork follow Marshalls guidelines
• Active website lead generation — the marshalls.co.uk "find an installer" map drives quote enquiries to nearest Register members

Quick Reference Table

Detailed Guidance

The vetting process — what to expect

The application starts on marshalls.co.uk. After basic details, Marshalls requests:

1. Financial information — three years' filed accounts (or equivalent for sole traders), Experian credit check authorisation
2. Insurance evidence — public liability minimum £5m (Marshalls' threshold above the typical £2m), employers' liability £10m where employees, vehicle insurance for any work vehicles
3. Six recent customer references — Marshalls will phone three to five at random
4. Photographs of recent jobs — minimum five projects across different products (block, slab, kerb where relevant)
5. Site visit by regional Marshalls technical manager — typically inspects two of the listed projects, takes measurements of laying courses, edge restraints, and joint widths

The technical manager looks for compliance with BS 7533 in particular: laying course thickness 30–50mm, edge restraints concrete-haunched, joint widths 2–5mm for block, mortar bed thickness 25–35mm for slabs. They will also visually assess pattern adherence (no random cuts on visible courses), cleanliness of work, and finished levels.

The interview stage covers technical knowledge — the kind of question Marshalls asks ("how do you specify a sub-base for a vehicular drive on clay subsoil?", "what's your jointing approach for a permeable block in a hilltop garden?"). Wrong answers don't necessarily fail the application, but they identify training needs.

Total time from application to acceptance is typically 4–6 months.

What the guarantee actually covers

The 10-year Marshalls Product and Installation Guarantee covers:

• Manufacturing defects — colour fade beyond manufacturer's stated tolerance, dimensional issues, surface lamination on flagstones
• Installation workmanship failures — settlement greater than 5mm, edge lifting, joint failure, lippage
• Combined product/install failure — where a defect arises from the interaction of product and installation

The exclusions matter:

• Damage from vehicle weight beyond domestic use (HGVs, plant)
• Acts of God (subsidence, flooding, ground heave from adjacent works)
• Mortar/jointing degradation from de-icing salt
• Owner-applied sealers that change the surface chemistry
• Modification by another contractor
• Areas where non-Marshalls product was substituted

How it compares to other manufacturer schemes

Brett Approved Installers operate a similar two-tier scheme with the Brett Approved Installer Network (BAIN). The vetting is comparable but Brett has a smaller network and less consumer brand presence. Tobermore Approved Installers focus on Northern Ireland and have a lighter-touch process. None of the manufacturer schemes match the lead-generation power of Marshalls' web presence outside their own brand.

For paving firms, the scheme works commercially when paving forms more than 60% of turnover. Below that threshold, the annual fee and the requirement to use Marshalls products on jobs (when other suppliers may be cheaper for a specific spec) erodes the margin. Above it, the lead flow and the price premium customers pay for Register-installed work easily justify the cost.

Customer-side process for the guarantee

After completion, the contractor should:

1. Provide the homeowner with the Marshalls completion certificate
2. Direct them to register at marshalls.co.uk/customer-care within 30 days
3. Photograph the finished work for the contractor's own records (in case of later claim)

If a claim arises, the homeowner contacts Marshalls Customer Care, not the installer first. Marshalls assesses, may send a technical inspector, and either pays the contractor to remedy, sends a different Register Installer to remedy, or refunds. The model deliberately removes the contractor as the gatekeeper of the warranty — this is the value the homeowner pays a small premium for.

When the guarantee won't pay out

Three common scenarios:

• Sub-base failure on clay subsoil with insufficient depth — if the technical inspector finds the sub-base was less than the BS 7533 minimum (100mm domestic, 150mm light vehicular, 250mm heavier) the failure is workmanship and Marshalls pays; if the spec was correct but the clay heaved unexpectedly, Marshalls treats it as ground movement (excluded)
• Sealer-induced damage — owner applies a wet-look sealer that traps moisture, causing efflorescence; Marshalls excludes this and points to the product literature
• Salt damage — heavy rock salt application in winter degrades pointing mortar; technically a maintenance failure not a workmanship failure

A good Register Installer hands over a maintenance brief at completion to head off these scenarios.

Frequently Asked Questions

Is the Marshalls guarantee actually different from a contractor's own guarantee?

Yes — meaningfully. A contractor's guarantee depends on the contractor staying in business; if they fold (and small paving firms have a high failure rate), the homeowner is left with nothing. Marshalls' guarantee is backed by a £550m turnover plc and survives the contractor. Customers pay roughly 5–10% more for Register-installed jobs because of this transferable warranty.

Can I install Marshalls products without being a Register Installer?

Yes. There is no exclusivity. Any contractor can buy and install Marshalls products through a builders' merchant. The customer simply doesn't get the Marshalls Guarantee. You can still offer your own workmanship guarantee.

How does the geographic distribution work?

Marshalls does not formally cap installer numbers per area, but in practice Register density is light — typically one Register member per market town and 2–4 in a major city. The map on marshalls.co.uk shows the user three nearest installers; if you're not in the top three for any area, lead flow is thin.

What happens if I leave the scheme?

Your existing guarantees on completed jobs remain valid for the full 10 years — they are between the homeowner and Marshalls, not contingent on your continuing membership. New work after departure obviously does not qualify.

Do customers actually use the guarantee?

Claims are uncommon — well-installed paving rarely fails within 10 years. The guarantee operates more as a sales tool than a payout mechanism. Marshalls publishes that under 1% of guaranteed installs result in a claim.

Regulations & Standards

• BS 7533 series — the master standard for pavement construction; Register Installers must demonstrate compliance

• BS EN 1338:2003 — concrete paving blocks specification

• BS EN 1339:2003 — concrete flag specification

• BS EN 1340:2003 — concrete kerb specification

• Consumer Rights Act 2015 — overlays the manufacturer guarantee with statutory rights for the homeowner

• The Construction (Design and Management) Regulations 2015 — apply to non-domestic Register Installer work; domestic work is exempt for the homeowner client but contractors retain duties

• Marshalls Register of Approved Installers — application process and current membership

• Marshalls 10-Year Guarantee terms — full terms and conditions

• BS 7533 standards on BSI — purchase or library access required

• Brett Approved Installer Network — comparator scheme overview

• block paving construction — BS 7533 specification basics

• block paving installation step-by-step — laying technique for Register-quality work

• SuDS regulations for driveways — compliance route Register Installers must follow on front drives

• Checkatrade and other rating sites — non-manufacturer comparator schemes