Full House Rewire in Cold Aston | Ashwood House Case Study

Ashwood House: A Full Two-Phase Rewire in Cold Aston

Mark Emery • 16 September 2026

Overview

Ashwood House, a large L-shaped residential property in Cold Aston, Gloucestershire, required a complete rewire to bring its electrical installation up to modern standards. E.R. Electrical Services delivered a comprehensive, two-phase rewire that covered every area of the property, from the guest wing and garage through to the main house across both floors. On completion, the client received a fully compliant, future-proof electrical installation, including smart lighting controls, zoned underfloor heating, and a robust data network throughout.

The Customer

Ashwood House is a substantial residential property situated in the village of Cold Aston, in the heart of the Gloucestershire countryside. Its distinctive L-shaped layout spans two floors, with additional outbuildings including a garage, guest wing, and private retreat. Properties of this scale and character present unique logistical challenges, particularly when it comes to electrical infrastructure. Ageing wiring, the complexity of the layout, and the sheer volume of circuits required across multiple zones meant that a full rewire was not only necessary but essential to the long-term safety and functionality of the home.

E.R. Electrical Services was appointed to manage the project from start to finish, drawing on over 40 years of experience delivering reliable, compliant electrical solutions across the Cotswolds and surrounding areas.

The Challenge

Like many older properties in rural Gloucestershire, Ashwood House had reached a point where its existing electrical installation could no longer safely support the demands of modern living. The wiring throughout the property was outdated and required a full strip-out before any new installation could begin.

The scale of the project introduced several key challenges:

Property layout: The L-shaped footprint of the main house, combined with separate outbuildings, made it impractical to rewire the property as a single continuous project.
Temporary power requirements: Stripping out the existing wiring meant the property would be without a safe, permanent power supply during the works. Temporary site power needed to be installed to allow work to continue safely.
Scope management: As works progressed on site, additional requirements were identified and instructed by the client, ultimately totalling 44 supplementary items. Managing this volume of additional works alongside the core programme required careful coordination and clear communication throughout.
Modern expectations: The client had specific requirements for smart lighting, underfloor heating, a comprehensive data network, and high-quality, designer finishes throughout, all of which needed to be integrated seamlessly into the new installation.

The Solution

E.R Electrical Services carried out a detailed electrical installation designed to minimise disruption while maximising impact. We focused on three key areas of the property:

Phase 1: Guest Wing, Garage and Retreat
The first phase focused on the guest wing, garage, and retreat areas of the property. Key works included:

Installation of a new main distribution board
Full LED lighting throughout the guest wing
Data wiring to support connectivity across the zone
S Plan heating controls
Consumer unit installation with integrated surge protection
A separate retreat consumer unit, fed from the garage mains position
CO2 detector installation

This phase established the core electrical infrastructure for the outbuildings and provided a solid foundation before attention turned to the main house.

Phase 2: Main House (Ground and First Floor)
The second phase covered the full extent of the main L-shaped house across both floors, and represented the most technically demanding element of the project. Works completed included:

Installation of a 21-way RCBO consumer unit, providing individual circuit protection throughout
Lutron smart lighting controls in the orangery and glass box extension
Extensive LED downlights and wall lights across all rooms
Underfloor heating circuits throughout multiple zones
AGA supply connections
Dedicated kitchen appliance circuits, including a Quooker tap, extractor hood, and under-cabinet lighting
Data cabling to multiple access points across the property
PIR-controlled external lighting
A complete master suite installation, including electric underfloor heating and dimmable Lutron lighting

Additional Works

Alongside the two core phases, E.R. Electrical Services completed 44 additional works items that were instructed progressively on site. These included:

CIA alarm panel connections
Sky box data and coaxial cabling
Heatmiser heating system programming
Lutron enclosure installations
Bespoke designer accessory upgrades throughout the property

This flexibility to accommodate additional client requirements without compromising programme or quality is a hallmark of the responsive, client-focused approach that E.R. Electrical Services brings to every project.

The Results

On completion of both phases, Ashwood House had a fully rewired electrical installation meeting the requirements of BS7671, the current UK wiring regulations. The key outcomes delivered for the client included:

Full regulatory compliance: Electrical Installation Certificates and Building Control Notifications were issued on completion of each phase, providing the client with complete documentation and peace of mind.
A future-proof installation: The new infrastructure is designed to support the long-term needs of the property, with capacity for future expansion where required.
Smart-home integration: Lutron smart lighting controls in the orangery and glass box extension, combined with Heatmiser heating system programming, give the client intuitive control over their home environment.
Comprehensive comfort features: Fully zoned underfloor heating, high-quality LED lighting throughout, and dedicated appliance circuits in the kitchen ensure the property meets the highest standards of modern residential living.
A robust data network: Data cabling to multiple access points across the property provides reliable connectivity in every area of the home.
Bespoke features: Designer accessory upgrades throughout ensure the electrical installation complements the aesthetic of the property, rather than detracting from it.

Conclusion

The full rewire of Ashwood House stands as a clear example of what can be achieved when complex, large-scale residential projects are managed with experience, precision, and a commitment to quality. By structuring the works into two carefully planned phases, E.R. Electrical Services delivered a safe, compliant, and fully bespoke electrical installation across every area of the property, without compromising on the finishes and smart technology the client required.

Looking ahead, the infrastructure now in place at Ashwood House provides an excellent platform for any future enhancements, whether that involves expanding the Lutron lighting system, adding EV charging capability, or integrating further smart home technology as it develops.

E.R. Electrical Services continues to build long-standing relationships with clients across the Cotswolds, delivering the kind of reliable, professional service that keeps homeowners and property owners coming back.

Planning a Rewire, Renovation or New Build Project?

If you are planning a rewire, renovation, or new build project and would like to discuss your requirements, we would love to hear from you. Get in touch with the team today to see how we can help.