DMDi

What DMDi does

DMDi (DMD Installations) is a privately held specialist contractor and accredited training provider established in 2003 and headquartered in Norwich, Norfolk, United Kingdom. The company delivers roofing, roofline (fascia, soffits and guttering), cladding, and asbestos survey services alongside a parallel accredited training division covering IOSH, UKATA, CITB, first aid, working at height, fire safety and TETRA ladder safety courses. DMDi serves three primary customer segments that are dominated by social housing providers and housing associations (Flagship Group, Norwich City Council, Saffron Housing, London Quadrant, Anchor Housing, Grand Union, Havebury, Freebridge, Clarion, Mid Suffolk District Council), with secondary segments in commercial construction (Aspen Build, Equans) and individual homeowners.

The company's core technology is its qualified installation workforce and its dense portfolio of trade and safety accreditations (CHAS, Constructionline, SafeContractor, NFRC, UKATA, IOSH, CITB, FAIB, Langley Approved, HardiePlank Preferred Installer, Cedral Select Professional Installer). Operationally, DMDi differentiates through drone roof surveys, Easi-Dec access systems for occupied sheltered housing, an in-house qualified asbestos surveyor (no conflict of interest because removal is not offered), and a Norwich-based training facility. The training division delivered over 400 accredited courses annually, with the SHEQ Director serving as lead trainer.

DMDi generates revenue through project-based contracting for housing providers at scale (e.g., approximately 1,700 properties for Flagship over four years, 1,500 homes in 2025/26 alone, 150,000 linear metres of roofline installed in 2025/26), one-off asbestos surveys, and per-person training course fees ranging from £50 to £640. Pricing for installation is predominantly quote-based with per-metre rates for roofline (£24.50/m). The go-to-market model is direct enterprise B2B sales via enquiry and a survey-then-quote process, supplemented by direct domestic enquiry. The company is privately held by an operator-led team (Managing Director Steve Bowden, Operations Director Grant Peruzzi, SHEQ Director Chris Cato) with no disclosed institutional investors.

Name

DMDi

Legal name

DMD Installations

Website

https://dmdi.co.uk

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

11–50 employees

Short description

DMDi (DMD Installations) is a Norwich-based specialist contractor and accredited training provider delivering roofing, roofline, cladding, asbestos surveys, and health & safety training across East Anglia, primarily to social housing providers and housing associations.

Ownership category

akta.pro rank

Headquarters

HQ city

Norwich

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Marketing or Sales, Infrastructure, Others

Revenue model

1. Roofing, Roofline & Cladding Installation Contracts: DMDI generates the majority of its revenue through project-based contracting delivering roofing, roofline (fascia, soffits, guttering), and cladding installation services to housing providers, commercial clients, and homeowners. Contracts are delivered at scale (e.g., approx. 1,700 properties over four years for Flagship, 1,000 linear metres of roofline across 5 blocks of flats and 50 houses for Aspen Build). Pricing is per-metre for roofline (£24.50/m for fascia/soffit/guttering) and project-quoted for cladding and roofing.
2. Asbestos Survey Services: DMDI carries out asbestos management surveys, refurbishment and demolition surveys, and targeted asbestos surveys through its in-house qualified surveyor. Surveys are priced per property/per survey and support legal compliance under the Control of Asbestos Regulations 2012.
3. Accredited Training Courses: DMDI delivers a comprehensive range of accredited training courses including UKATA asbestos training, IOSH Managing Safely, CITB qualifications (SMSTS, SSSTS, Health & Safety Awareness), first aid, working at height, fire safety, TETRA ladder safety systems, and Easi-Dec training. Over 400 courses delivered annually. Pricing ranges from £50pp to £640pp depending on course type and duration. Courses are delivered at the Norwich training facility or on client premises.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

DMDi (DMD Installations) is a Norwich-based specialist contractor delivering roofing, roofline (fascia, soffits, guttering), cladding installation and asbestos survey services to social housing providers, local authorities, commercial clients and homeowners across East Anglia. Alongside its contracting business, DMDi operates an accredited training division delivering IOSH, UKATA asbestos, CITB, first aid, fire safety, working at height and TETRA ladder safety courses, with over 400 courses delivered annually.

Product overview

DMDi is a specialist contractor and accredited training provider offering a unified portfolio of construction and compliance services. The core service lines are: (1) Roofline installations covering fascia, soffits and guttering; (2) Cladding installation as a HardiePlank Preferred Installer and Cedral Select Professional Installer; (3) Roofing including pitched, flat and repairs with NFRC/Langley accreditation; and (4) Asbestos surveys for housing providers, commercial clients and homeowners. The training division operates as a parallel service offering IOSH, UKATA and CITB accredited courses alongside first aid, fire safety, working at height and specialist TETRA ladder safety training, with over 400 training courses delivered annually. Drone roof surveys complement the roofing service. The company serves East Anglia since 2003 with 20+ years industry experience.

Differentiator

Problem solved

Functional benefit

Products and services

• Fascia, Soffits & Guttering

Quantifiable outcome

• 1,700 properties delivered for Flagship over four years with consistent quality and no retention issues
• +7 more outcomes

Named customers18 records

Segments4 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Eight partnerships are on record, tiered minor and core.

• Hopestead (Flagship's Charity)minorOthersDMDI supports Hopestead, which is Flagship Housing Group's own charity, through its 2026 charity ball. This extends DMDI's relationship with Flagship beyond contracted works into shared community investment.
• Norfolk Hoopstars FoundationcoreOthersDMD Installations has supported both the Norfolk Hoopstars elite performance programme and the Norfolk Hoopstars Foundation for four consecutive years. Support includes kits, equipment, and financial contributions ensuring young people can participate in basketball regardless of cost barriers. DMDI describes this as a relationship built on shared values and mutual respect.
• East Anglia's Children's Hospices (EACH)coreOthersLong-standing charity partner supported through DMDI's annual charity golf day, Canaryball Rally, and charity balls. DMDI has raised more than £60,000 for EACH and has been described as a strong advocate embracing EACH's mission and values. EACH has recognised DMDI's exceptional contribution to supporting families and children across Norfolk.
• Norwich City Community Sports FoundationcoreOthersSupported through the annual charity golf day and Canaryball Rally 3 (which raised over £42,000 in 2025). The Community Sports Foundation serves Norfolk communities through sport, and DMDI's support has provided funding and resources for community sports initiatives.
• The Fire Fighters CharityminorOthersSupported through DMDI's annual charity golf day (2024 and 2025 events split donations between this and other charities). The Fire Fighters Charity provides support to firefighters and their families.
• Big C Cancer CharityminorOthersSupported through DMDI's annual charity golf day (2024 and 2025 events). Big C is Norfolk's cancer charity, and DMDI's fundraising contributes to cancer support services in the region.
• Priscilla Bacon HospiceminorOthersSupported through DMDI's 20th Anniversary charity ball (raised over £15,500 in 2024 alongside the Community Sports Foundation). Hospice serving Norfolk communities.
• Break (Charity)minorOthersDMDI's 2026 charity ball will support Break alongside Hopestead, continuing the company's tradition of supporting Norfolk-based charities with deep roots in the local community.

Scale indicators15 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Bell Group UK: UK property-services contractor delivering external maintenance, refurbishment and decorating programmes for housing associations and local authorities; comparable in social-housing customer mix and planned-maintenance model.
• Breyer Group: UK-wide roofing, cladding and building-envelope contractor serving social housing and commercial clients; directly comparable to DMDI's roofline, cladding and roofing installation business at a larger scale.
• Avonside Group Services: National roofing contractor specialising in pitched and flat roofing installations for housing associations and commercial clients; directly comparable in service mix and customer type to DMDI.
• Ian Williams Group: UK property-services contractor delivering responsive repairs, planned maintenance and external-fabric works for social-housing landlords; comparable as a social-housing-focused maintenance contractor.

Broad incumbents

• Mears Group: Large UK provider of repairs, maintenance and housing-services to local authorities and housing associations; comparable end customers and works but operates at much broader national scale and scope than DMDI.
• Wates Group Property Services: Established UK contractor delivering planned maintenance, refurbishment and energy-efficiency retrofit programmes for housing associations and local authorities; larger incumbent with overlapping roofing and external-fabric scope.
• Fortem Solutions (Morgan Sindall Property Services): UK property-services arm of Morgan Sindall delivering planned maintenance, retrofit and external-fabric works for social housing; comparable customer base but operates as part of a major construction group.
• Equans UK & Ireland: Multi-disciplinary FM and building-services incumbent already a customer of DMDI at Horsham; represents the broader end of the market with overlapping cladding/maintenance capability at national scale.

Emerging players

• Citation Group: UK provider of health-and-safety, HR and compliance training and services to SMEs and mid-market employers; comparable to DMDI's training division in offering accredited, recurring health-and-safety courses at scale.

Regional players

• Aspen Build: East-Anglia-based new-build construction company and DMDI customer; comparable regional market position and acts as a downstream construction partner rather than direct competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/dmdinstallations

Compliance16 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 DMDi