Service Portfolio

Our Services

Electrical engineering and renewable energy services

Every project begins with a need — whether that’s improving safety, reducing running costs, meeting compliance requirements, enhancing comfort, or preparing for future technologies. Our role is to listen carefully, understand what matters most to you, and translate those priorities into a solution that is thoughtfully designed and professionally delivered.

Each service is supported by disciplined engineering, consistent delivery standards and dependable long-term support — giving you confidence that your infrastructure will perform as expected not just today, but for years to come.
Whether supporting a homeowner, landlord, developer or multi-site organisation, we approach every project with the same objective: Safe systems. Measurable performance. Long-term dependability.

How Our Core Services Are Structured

To make navigating our services straightforward, we organise them into clearly defined specialist areas — while maintaining a fully integrated engineering approach behind the scenes.

This allows you to engage with a single service or bring together multiple technologies into a coordinated solution tailored to your needs.

01

Electrical Engineering Services

01

Electrical Engineering Services

Safe, compliant electrical design, installation and upgrades for homes, businesses and public-sector environments across the East of England.

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02

Electrical Installation Condition Reports (EICR)

02

Electrical Installation Condition Reports (EICR)

Clear inspection, testing and reporting that helps landlords, homeowners and businesses understand condition, risk and remedial priorities.

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03

New Build Developers & Architects

03

New Build Developers & Architects

Electrical and renewable infrastructure support from specification through to handover for developers, architects and new build projects.

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04

Residential Solar PV

04

Residential Solar PV

MCS-approved solar PV systems designed around your home, roof and future energy use, with certification and aftercare included.

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05

Commercial Solar PV

05

Commercial Solar PV

Disciplined commercial solar PV design and installation, with modelling, funding guidance and grid-connection coordination where needed.

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06

Energy Storage

06

Energy Storage

Battery storage systems specified for safe, accessible locations, helping homes and businesses improve resilience and make better use of generated energy.

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07

Electric Vehicle Charging

07

Electric Vehicle Charging

Domestic and commercial EV charge point installation with properly designed supply, protection and future-ready infrastructure.

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08

Solar PV Maintenance, Cleaning & Inspections

08

Solar PV Maintenance, Cleaning & Inspections

Performance checks, fault finding, cleaning and inspection support for existing systems, including where the original installer is no longer available.

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09

Indoor Air Quality (IAQ)

09

Indoor Air Quality (IAQ)

Practical indoor air quality solutions that support healthier internal environments through considered assessment, specification and installation.

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How We Work

A practical process with engineering discipline

Customers choose JDH because we make the process clear from the very beginning. We offer honest advice before any work starts, backed by full accreditation, insurance and independent assessment for peace of mind. Pricing is transparent with no hidden extras, and every installation is carried out to a high standard designed to last.

01

Survey & Scope

We review the property, usage patterns, constraints and compliance requirements before specifying the right route forward.

02

Design & Specification

Solutions are designed around safety, performance, future load and the way the building will be used.

03

Installation & Commissioning

Work is delivered by qualified engineers with tidy installation, testing and documented handover.

04

Aftercare & Maintenance

Ongoing support, inspections and maintenance help keep electrical and renewable systems performing as intended.

Specialist Services

Focused support for future-ready buildings

Our Engineering Delivery Principles

Regardless of project scale or sector, all JDH work follows the same core principles — ensuring consistency, reliability and clarity throughout.

Structured Design

Solutions are engineered around real usage patterns, environmental conditions and long-term objectives.

Specification Discipline

Technologies are selected through independent assessment, certification alignment and proven performance.

Compliance Assurance

Installations are delivered in accordance with recognised standards and regulatory frameworks.

Lifecycle Thinking

Systems are configured for serviceability, adaptability and sustained performance over time.

Clear Communication

Clients receive straightforward guidance at every stage — from initial discussion through to ongoing support.

These principles ensure that every project benefits from the same level of care, regardless of complexity.