How a fenestration client Went from Excel to Mobile Maintenance
Our fenestration client transformed chaotic Excel spreadsheets into real-time asset intelligence, reducing production impact time by 89% and unlocking compounding operational knowledge.
Manufacturing
51-200 Employees
About Client
The client is a leading British manufacturer serving the fenestration industry with reliable and innovative glazing solutions. The company offers one of the largest universal ancillary product ranges for window fabricators and installers in the UK.
Built on genuine engineering capability, the client combines in-house extrusion, injection molding, CNC production and 3D design prototyping with a quality laboratory. Their products are designed to be robust, multi-use, and suitable across a wide variety of window and door systems.
Since founding, the company has earned recognition for product quality, customer support, and commitment to sustainability. This operational strength set the context for the maintenance challenges they faced.
Core Capabilities
  • In-house extrusion
  • Injection moulding
  • CNC production
  • 3D design prototyping
  • Quality laboratory
The Challenge: Chaos Disguised as Data
Before iMaintain, maintenance activity at the client was primarily recorded in Excel. Whilst this created a basic record of work, it significantly distorted reality. KPIs existed, but they conflicted with one another. Some metrics implied extremely slow response times, whilst others suggested unrealistically fast repairs.
Attendance was often logged hours or days after the event. Work orders remained open long after work had finished. Timestamps were estimated rather than captured. Asset structure compounded the issue, downtime was logged against broad locations like "Warehouse" or "Yard" rather than individual machines.
The client did not lack data. They lacked usable, trustworthy data.
Delayed Logging
Attendance recorded hours or days after events occurred
Open Work Orders
Jobs remained active long after completion
Vague Asset Data
Downtime logged to broad locations, not specific machines
The Problem in Numbers
These figures were not the result of poor engineering performance. They were the natural outcome of retrospective recording. Work orders remained open long after completion. Timestamps were estimated rather than captured. Asset failures were blurred together, hiding repeat issues and making prioritisation impossible.
The metrics inflated and lost meaning, making confident decision-making impossible.
158
Average Asset-Down Work Order Lifetime
Hours per event before intervention
83.2
Production Impact Time
Recorded hours per event
2,913
Total MTTR
Hours over 30-day period

The Root Cause: These inflated figures were symptomatic of retrospective recording systems that distorted reality rather than captured it. The challenge was not engineering capability—it was data integrity.
The Intervention: Mobile-First, Asset-Led Maintenance
A Single Guiding Principle
Capture reality as it happens, at the asset.
iMaintain enabled engineers to interact with work orders on mobile devices, directly at the machine. Attendance, actions, pauses, and closures could be logged in real time, without leaving the shop floor or relying on memory later.
Equally important was the move to an asset-led structure. All work orders, downtime, and history were tied to real, physical machines rather than generic locations. The system guided consistent behaviour by design, making good data a natural by-product of doing the job.
Real-Time Capture
Engineers log attendance, actions, and completions directly at machines using mobile devices
Asset-Led Structure
Every work order, downtime event, and history record tied to specific physical assets
Onboarding: Speed Without Disruption
The implementation of iMaintain at The client was designed for immediate impact. Rather than lengthy parallel systems or drawn-out transitions, the focus was on structured preparation followed by confident go-live. This speed mattered, adoption happened whilst momentum was high, and the improvement in data quality was visible almost immediately.
Data Transition
Existing Excel data structured and assets defined correctly in under one week
Workflow Alignment
System configured to match how the team already operated
Training & Support
Structured onboarding session and on-site training with engineers and supervisors
Immediate Go-Live
System went live immediately rather than running in parallel
The Transformation: What the Data Now Shows
With real-time, asset-level recording in place, the data began to reflect reality. Work order management shifted from reactive to controlled. Jobs were no longer left open indefinitely or lost in spreadsheets. Engineers could close tasks immediately upon completion, and supervisors gained genuine visibility into what was happening on the floor.
The transformation was not just operational, it was cultural. Teams began to trust the numbers because they reflected what they were actually experiencing. Decisions could be made with confidence. Patterns emerged that had previously been invisible.
89% Reduction in Production Impact Time
Per event dropped from 83.2 hours to 13.5 hours
1,900 Hours Saved
Total MTTA reduction over 30-day period
Zero Open Asset-Down Work Orders
Complete control over maintenance workflow
Financial Impact: Conservative Estimates
The fenestration client did not initially have a fully modelled cost of downtime. To avoid overstating impact, the financial view is based on assumptions derived from improved visibility and recording, rather than claiming all previously logged time directly equated to lost output.
These figures are intentionally conservative and understate total impact. They reflect value unlocked by understanding and controlling production-impact time, enabled by better data. This impact to production time may not be direct hours, but with better data record, visibility is now much better, allowing them to build up a much better picture of time spend.
Conservative Range
£50-£150 per hour of recorded production-impact time
Reduction Per Event
69.7 recorded hours eliminated in 30 days
Impact Per month
£3,500-£10,500 in improved visibility and control
Knowledge That Compounds
The most important shift was not speed, but retention of knowledge. Every breakdown now captures descriptions, comments, timestamped events and images, all linked directly to the asset. That information is available the next time the issue occurs, regardless of shift or personnel.
This creates a compounding effect. New engineers can access institutional knowledge immediately, bypassing months of trial and error. Repeat failures are identified before they escalate. Maintenance becomes more strategic and effective. The system learns, and performance compounds over time.
Unlike traditional approaches where knowledge leaves with experienced staff or remains locked in individual memories, iMaintain creates a living repository that grows more valuable with every logged event. This represents perhaps the most significant long-term value of the transformation.
Faster Ramp-Up
New engineers access institutional knowledge immediately
Early Recognition
Repeat failures identified before they escalate
Targeted Prevention
Maintenance becomes more strategic and effective
Continuous Improvement
The system learns and performance compounds over time
The Path Forward
The client, like many others in manufacturing, did not have a maintenance execution problem, they had a data credibility and knowledge access problem. By moving from retrospective, Excel-based recording to real-time, asset-led maintenance, they gained control over work, trust in their data, and visibility of what truly drives downtime.
The result was not just faster fixes, but better decisions, fewer repeat failures, and a maintenance function that actively supports the wider business. ROI will continue to compound over time as iMaintain deploys more AI features, and they now record and log more knowledge every day.
This transformation demonstrates that the foundation of operational excellence is not sophisticated analysis or advanced prediction, it is accurate, timely data captured at the point of work. Everything else builds from there.
Real-Time Visibility
Capture reality as it happens, at the asset
Trustworthy Data
Metrics that reflect reality and guide decisions
Institutional Knowledge
Experience that stays in the business and compounds