Multi-Body Accredited — Verified, Audited, Trusted
Strata holds accreditations across seven major industry bodies covering electrical work, energy assessment, retrofit, and consumer protection. For procurement teams, asset managers and landlords — these accreditations mean qualified people, audited processes, and accountable delivery.
Risk Reduction for Anyone Buying Survey or Electrical Services
Accreditation isn’t a formality. For procurement officers running PQQ assessments, asset managers awarding subcontracts, and landlords selecting compliance providers, accreditations are concrete evidence of competence, training, insurance, and accountability. Each body listed here independently audits its members. That audit trail is the value.
NICEIC Registered
The UK’s leading electrical certification scheme. Annual independent assessment of work, technical competence, insurance and customer service. NICEIC registration is a fundamental trust signal for any electrical contractor.
TrustMark
Government-endorsed quality scheme covering installation work in homes. Required for many publicly-funded retrofit programmes. Signals consumer protection, complaint resolution and compliance with required standards.
Elmhurst Energy
One of the UK’s largest accreditation bodies for energy assessors. Covers Domestic EPCs (DEA), Non-Domestic EPCs (NDEA), Display Energy Certificates (DEC), and PAS 2035 Retrofit Assessor accreditation.
ECMK
Independent accreditation body for energy assessors and retrofit professionals. Covers DEA, NDEA, DEC and Air Conditioning Inspector schemes. Strict audit and compliance requirements.
Quidos
Major UK accreditation scheme for energy assessors. DEA, NDEA, OCDEA capability. Particularly active in commercial EPC and Display Energy Certificate work.
Sterling Accreditation
Energy assessor accreditation scheme covering domestic and non-domestic EPC work. Multi-body accreditation through Sterling provides redundancy and continuity of supply.
PAS 2035 Capability
PAS 2035 is the UK Government’s Publicly Available Specification for retrofit work — the standard that applies to all publicly-funded retrofit programmes including the Warm Homes: Social Housing Fund, ECO4 (until December 2026), and the Boiler Upgrade Scheme. Strata operates within the PAS 2035 framework with Retrofit Assessors accredited through Elmhurst. This capability is what allows us to act as a delivery partner for retrofit programmes — councils, housing associations and main contractors can engage Strata knowing the PAS 2035 audit trail is intact.
What PAS 2035 Capability Means
- Retrofit Assessor capability
- Occupant assessment delivery
- Whole-house condition surveys
- RdSAP energy reporting
- TrustMark scheme alignment
- Coordinator workflow integration
- Quality assurance built in
- Audit-ready documentation
Insurance, Vetting and Operational Standards
Accreditations are necessary but not sufficient. Strata’s wider operational standards include comprehensive insurance, fully vetted personnel, and documented quality processes that procurement teams can review.
Public Liability Insurance
Comprehensive PL cover suitable for residential, commercial and programme-scale work. Certificates available on request.
Professional Indemnity
PI cover scaled to contract value. Particularly important for survey, assessment and design-stage work where errors could have downstream impact.
DBS-Vetted Team
All field surveyors and electricians DBS-vetted. Particularly relevant for work in occupied housing, schools, healthcare and vulnerable-resident environments.
Health & Safety
CHAS-aligned health and safety processes. RAMS produced for every project. CSCS cards held by all site personnel.
GDPR Compliant
All data handling — survey data, personal information, photographic records — managed under documented GDPR-compliant processes.
Continuous Audit Trail
Survey Programme Management System maintains complete audit trail for every job — surveyor, time, location, photos, scoring, QA. Defensible documentation throughout.
Common Questions
Can I verify your accreditations?
Yes. Each accreditation body maintains a public register where you can verify Strata’s status — NICEIC.com, TrustMark.org.uk, ElmhurstEnergy.co.uk, ECMK.co.uk, Quidos.co.uk, SterlingAccreditation.com. We provide our company-specific reference numbers on request.
What's the difference between Elmhurst and Quidos?
Both are independent accreditation bodies for energy assessors. Elmhurst is one of the largest and oldest schemes; Quidos is also major and particularly strong in commercial work. Multi-body accreditation gives us continuity of supply and broader capability across different EPC types.
Do you have CHAS, Constructionline or similar?
Strata operates to CHAS-aligned health and safety standards. We are progressing formal Constructionline membership as part of our framework qualification programme. SafeContractor and similar accreditations available on case-by-case basis where contracts require.
What insurance levels do you carry?
Standard cover includes Public Liability £5m, Professional Indemnity £2m, and Employer’s Liability £10m. For larger contracts, we can arrange increased PI cover (up to £10m) where required by the client. Insurance certificates available on request.
Who audits your accreditations?
Each scheme runs its own annual audit. NICEIC requires annual technical inspection of work. Energy assessor schemes (Elmhurst, ECMK, Quidos, Sterling) require annual CPD, audit lodgements and may carry out spot-checks of submitted EPCs.
How does PAS 2035 differ from PAS 2030?
PAS 2030 covers the technical specification for installation of energy efficiency measures in homes (the ‘how’ of retrofit installation). PAS 2035 is broader — it covers the whole-house retrofit process including assessment, design, coordination, installation and post-completion. They work together — most retrofit programmes require both.
Do your accreditations cover commercial work?
Yes. Elmhurst, ECMK and Quidos all cover non-domestic energy assessor accreditation (NDEA, OCDEA). NICEIC covers commercial electrical work. PAS 2035 currently focuses on domestic retrofit but related schemes exist for commercial. We confirm specific accreditation match to project type at scoping stage.
Work With an Accredited Partner
Whether you’re a procurement officer assessing PQQ submissions, an asset manager comparing subcontract suppliers, or a landlord choosing a compliance provider — we’d welcome the conversation.