What Certass does

Certass Limited is a UKAS-accredited certification body operating in the UK since 2006, headquartered in Newcastle Upon Tyne. It is privately held by Certass Limited (Company Reg No 4350234) with no parent company or external investment disclosed, and income is described as being used solely for the benefit of members. The company's primary function is to enable self-certification of Building Regulations compliance for domestic window and door replacement installations through its Government-authorised Competent Person Scheme, providing a lower-cost alternative to Local Authority Building Control. It also runs the Certass TrustMark Workmanship Scheme, PAS 2030 certification, an Energy Ratings Scheme, and bespoke product certification schemes for manufacturers, systems companies, and trade suppliers.

The company operates a digital certification and compliance platform comprising an online PowerApps-based signup portal, a member login portal for job registration and certificate management, and the CertifiedCompetent.co.uk consumer-facing platform that has accumulated 127,000+ verified homeowner reviews. Members include trade installers (sole traders through SMEs), manufacturers/fabricators, and wider supply-chain participants, with homeowners as a secondary beneficiary audience. The Certass Trade Association, described as the largest in the glazing and fenestration sector, is bundled free with the £24.95+VAT/month membership. Recent product additions include the MTC Skills Card and Certass Continuum Skills Card, which monetise site-operative competence verification aligned with Building Safety Regulator requirements. Certification activities are regulated by UKAS and the Building Safety Regulator, with direct oversight-relevant leadership in place via Chair Jon Vanstone's role as Chair of the BSR Industry Competence Committee.

Revenue mechanics combine recurring monthly membership fees (£24.95+VAT/month base, plus £5+VAT/month per additional scope), per-job digital registration fees (£1.65/job), and MTC Skills Card fees (£130+VAT one-time plus £4.50+VAT/month per operative). Distribution is primarily self-serve via website portals with inside-sales phone support, and customer acquisition is supported by content marketing, an active Facebook members forum, monthly newsletters, and partner webinars. The GTM motion is sales-led but digitally enabled and tailored to UK trade installers and manufacturers, with no disclosed geographic expansion beyond the UK.

Name

Certass

Legal name

Certass Limited

Website

https://certass.co.uk

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

11–50 employees

Short description

Certass is a UKAS-accredited, government-authorised certification body serving UK glazing and fenestration trade installers and manufacturers, enabling self-certification of Building Regulations compliance for window and door installations via a £24.95/month membership.

Ownership category

akta.pro rank

Product category

Building Regulations Certification Services

NAICS

Professional, Scientific, and Technical Services (541)

SIC

Services-Business Services, Nec (7389)

akta.pro primary industry

Continuing Education (CE/CPD) & Provider Accreditation Bodies (EDADACAF)

akta.pro secondary industry

Credentialing, Certification Prep & Exam Training (BPACANAJ)

Keywords

• Building regulations certification
• Competent person scheme
• Glazing installer certification
• Product certification schemes
• Trade association services

Headquarters

HQ city

Newcastle Upon Tyne

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Others

Revenue model

1. Monthly Membership Fees: Primary revenue stream from monthly subscription fees for certification scheme membership, billed by direct debit. Includes access to one certification scheme, with additional scopes available for £5/month.
2. Job Registration Fees: Fees charged per job registration for building regulation compliance certificates. Digital job registration fee is £1.65 per job.
3. MTC Skills Card Fees: One-time registration fee of £130+VAT per site operative plus monthly fee of £4.50+VAT per operative for MTC card management.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Certass is a UKAS-accredited certification body that enables UK glazing installers, manufacturers, and fabricators to self-certify compliance with Building Regulations through its Competent Person Scheme, TrustMark, and PAS 2030 certification schemes on a monthly subscription basis (£24.95+VAT/month). It also certifies products (Energy Ratings, Bespoke Product Certification), verifies installer skills via the MTC Skills Card, runs the UK's largest glazing trade association, and operates the Certified Competent consumer platform.

Product overview

Certass operates as a UKAS-accredited certification body offering a portfolio of certification schemes for the building fabric trade, primarily focused on glazing and fenestration. The core offering includes the Competent Person Scheme for self-certifying Building Regulations compliance, the Certass TrustMark Workmanship Scheme for broader craftsmanship certification, and PAS 2030 Certification for government-funded work. These are supplemented by product certification through the Energy Ratings Scheme and Bespoke Product Certification Schemes for manufacturers. Skills verification is handled via the MTC Skills Card and Certass Continuum Skills Card. The Certass Trade Association provides industry advocacy and business support services. Certified Competent serves as the consumer-facing platform connecting homeowners with certified installers. All schemes share a common digital infrastructure for job registration, certificate issuance, and audit management, unified under a £24.95 per month membership model.

Differentiator

Problem solved

Functional benefit

Products and services

• Competent Person Scheme Self-certification scheme allowing installers to certify their window and door installations meet Building Regulations as an alternative to using Local Authority Building Control. Used by glazing installers for domestic replacement window and door projects.
• Certass TrustMark Workmanship Scheme Workmanship warranty scheme that certifies installations meet workmanship standards and codes of practice for trades beyond window and door installation, such as staircases and other joinery work.
• PAS 2030 Certification Certification scheme for installers to demonstrate their business meets PAS 2030 requirements for retrofit energy efficiency work, particularly relevant for government-funded initiatives.
• Energy Ratings Scheme Product certification scheme providing consumer-friendly Window Energy Rating labels for windows and doors to prove their high-performance energy qualities. Used by manufacturers and fabricators in the fenestration sector.
• Bespoke Product Certification Schemes Tailor-made certification schemes designed for manufacturers, systems companies, and trade suppliers to certify installation of their products and create approved installer networks, such as the bespoke Competent Persons Scheme for The Joinery Network's Lignum timber window and door system.
• MTC Skills Card Mandatory Technical Competence Card demonstrating individual site operatives' competence and compliance with Building Regulations and industry best practice via a knowledge assessment, onsite observation, and telephone discussion. Priced at £130+VAT one-time registration plus £4.50+VAT per operative per month.
• Certass Trade Association UK glazing industry's largest trade association providing government connections, industry advocacy, business support services, and access to HR, tax, health & safety, and legal helplines. Free membership included with Certass certification membership.
• Certified Competent Platform Consumer-facing website platform where homeowners can search for certified installers, read recommendations, and leave reviews. Provides free leads to Certass members and has accumulated 127,000+ verified homeowner reviews with 97% recommendation rate.
• BRCC Replacement Certificate Service Service allowing homeowners and installers to order replacement Building Control Compliance Certificates when the originals have been lost or are needed for property sales and records.

Quantifiable outcome

• 97% of customers say they would recommend their Certass installer based on 127,000+ verified reviews
• +2 more outcomes

Named customers1 record

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core and minor.

• The Joinery NetworkcoreStrategic or Co-development PartnerCertass created a bespoke Competent Persons Scheme for The Joinery Network's Lignum timber window and door system, plus a Certass TrustMark scope for other work types like staircases. This partnership helps ensure high-quality standards of Lignum products are maintained through to installation.
• Buccaneer SolutionscoreStrategic or Co-development PartnerCertass partnered with Buccaneer Solutions, led by Richard Bate, for expertise in product information systems and compliance infrastructure. Together they are developing systems for capturing, storing and evidencing product performance information including the Thermal Rating Register.
• Building Safety RegulatorcoreStrategic or Co-development PartnerCertass is working in partnership with the Building Safety Regulator to develop an exclusive webinar on Minimum Technical Competence changes. Jon Vanstone serves as Chair of the Industry Competence Committee at the Building Safety Regulator.
• Office for Product Safety and Standards (OPSS)minorStrategic or Co-development PartnerCertass met directly with OPSS to discuss product compliance requirements for the fenestration sector. OPSS is expanding regulatory scrutiny to windows, doors, and other fenestration products.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• NAPIT: NAPIT is a UK Competent Person Scheme operator covering multiple trades including electrical, plumbing, and renewables, directly comparable to Certass's model of multi-scope CPS membership for tradespeople.
• Certsure (NICEIC): Certsure operates NICEIC and similar trade Competent Person Schemes in the UK (electrical, plumbing, gas), using the same UKAS-accredited, government-authorised scheme structure and recurring membership model as Certass.
• Stroma Certification: Stroma is a UKAS-accredited certification body delivering Competent Person Schemes across multiple trades, mirroring Certass's model of CPS memberships plus energy and building-regulation certification.
• BM TRADA (Element Materials Technology): BM TRADA provides UKAS-accredited product and system certification for construction products including timber and fenestration, comparable to Certass's bespoke product certification schemes for manufacturers such as Lignum.
• Blue Flame Certification: Blue Flame Certification is a UK government-authorised Competent Person Scheme in the gas and heating trades, using the same per-member subscription CPS model that Certass applies in glazing.
• FENSA: FENSA is the other dominant government-authorised Competent Person Scheme for glazing and fenestration in the UK, directly competing with Certass for the same installer base on a near-identical self-certification model.

Others

• TrustMark: TrustMark is the government-endorsed quality scheme that Certass delivers against for its TrustMark Workmanship product; it is an ecosystem partner/scheme owner rather than a direct CPS competitor.
• LABC (Local Authority Building Control): LABC represents local authority building control in England and Wales — the regulatory alternative to using a Competent Person Scheme such as Certass — making it the structural substitute to Certass's core self-certification proposition.

Broad incumbents

• Bureau Veritas UK: Bureau Veritas is a global testing, inspection and certification (TIC) incumbent with UK construction and product certification lines that compete broadly with Certass's scheme and bespoke certification business.
• BSI Group: BSI is a major UKAS-accredited certification body delivering standards and certification across many sectors; it overlaps with Certass in construction certification but serves a much broader portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/Certass
• Xx.com/CertassLtd
• LinkedInlinkedin.com/company/certass-ta

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Certass