High-Performance Upgrade Review
Why This Review Exists
Most homes in Coffs Harbour were not built for performance.
They were built to meet minimum code at the time — often with little consideration for moisture, airflow, or long-term durability.
What we see on site, consistently:
• Poor ventilation in bathrooms and living areas
• Moisture building up in wall cavities and ceilings
• Mould forming due to trapped humidity
• Heat entering in summer and escaping in winter
• Air leakage throughout the building envelope
• Services installed without coordination or future planning
These issues are not isolated — they are widespread.
The problem is not the age of the home.
It’s how it was built.
Most renovations then make it worse.
Partial upgrades — new windows, new linings, new finishes — are often installed without understanding how the building actually performs.
This traps moisture, increases condensation risk, and leads to rework.
This review exists to stop that.
Before any upgrade work begins, we identify:
• Where the building is failing
• What is causing it
• What sequence will fix it without creating new problems
This is not about adding features.
It’s about correcting the building — properly.
Scope of Assessment
On-site assessment includes:
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External wall construction review (visual)
Roof / ceiling insulation review
Window performance assessment (frame + glazing type)
Thermal bridge risk indicators (visual only)
Floor / slab interface risk notes (where accessible)
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Airtightness risk indicators
Ventilation adequacy review (natural vs mechanical)
Condensation / mould risk indicators
Internal humidity risk conditions
Bathroom / kitchen exhaust review
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Heating / cooling system overview
Domestic hot water configuration review
Services placement implications for retrofit
Feasibility of mechanical ventilation (HRV) feasibility)
Staging implications for upgrade works
Measured Performance Diagnostics
This assessment is supported by on-site measurement — not assumption.
We use calibrated tools to verify how the building is performing in real conditions.
This includes:
• Thermal imaging to identify heat loss and air leakage pathways
• Moisture detection to locate hidden risk within walls and surfaces
• Air quality measurement (CO₂ and humidity) to assess ventilation performance
• Targeted cavity inspection to verify internal conditions where required
• Time-based data logging (where applicable) to understand how the home behaves over a full cycle
These measurements allow us to:
• Confirm where performance is failing
• Distinguish between surface symptoms and underlying causes
• Prevent upgrades that introduce new problems
• Sequence works correctly before construction begins
This is not a laboratory test.
It is controlled, real-world verification of how the building performs.
Assessment Levels
The High-Performance Upgrade Audit is structured in three levels of depth.
Assessment scope is determined by building size, layout complexity, and accessibility.
Multi-storey homes, complex layouts, or restricted access conditions require additional assessment coverage to ensure results are accurate and complete.
Scope and investment are confirmed prior to engagement.
Level 1 — Essential
Envelope Diagnostic
Foundational Performance Review
Investment: $1,650 + GST
Initial diagnostic of the building envelope and internal conditions using targeted measurement.
This stage identifies where the home is under-performing and verifies key failure points before any upgrade decisions are made.
Includes:
Insulation continuity
Air leakage exposure
Moisture risk zones
Ventilation adequacy
Measured Assessment Includes:
Thermal imaging to identify heat loss and leakage paths
Moisture detection to confirm risk areas
CO₂ and humidity spot readings to assess ventilation
Targeted air movement checks at key points
Outcome:
Clear identification of primary performance failures and upgrade pressure points, supported by measured evidence.
Defines:
where the building is failing
what is contributing to discomfort or risk
Removes guesswork before renovation planning begins.
Level 2 — Advanced
Envelope + Systems
Integrated Performance Assessment
Investment: $2,450 + GST
Builds on on-site data to understand system interaction and define correct upgrade sequencing.
This stage defines how the building envelope, air movement, and internal systems interact — using measured data to remove assumption and guide correct upgrade decisions.
Includes Level 1, plus:
Heating and cooling system suitability assessment
Ventilation strategy review (including mechanical feasibility)
Domestic hot water overview
Structured risk prioritisation
Extended Analysis & Verification Includes:
Multi-room environmental comparison to identify imbalance patterns
Air movement behaviour analysis across key zones
Targeted verification of leakage and pressure points
Selective cavity inspection where required to confirm conditions
These checks support analysis — not standalone testing.
The focus is interpreting results to guide correct upgrade sequencing.
Outcome:
A clear upgrade sequence aligned with building science and measured performance.
Removes guesswork. Prevents mis-sequenced upgrades.
Level 3 — Strategic Upgrade Pathway
Highest Pre-Renovation Certainty
Investment: $3,800 + GST
Structured planning of works, staging, and budget alignment before renovation begins.
This stage converts analysis into a controlled pathway — defining what to do, when to do it, and how to avoid unnecessary cost and rework.
Includes Level 2, plus:
Upgrade staging roadmap (what to do now vs later)
Performance-to-cost prioritisation
Identification of high-impact vs low-impact upgrades
Sequencing aligned with renovation or construction plans
Comfort and health impact considerations
Strategic Planning Includes:
Allocation of budget across upgrade stages
Identification of cost-sensitive decisions
Avoidance of redundant or conflicting works
Alignment with future renovation or extension plans
Outcome:
A structured upgrade pathway aligned with performance, budget, and sequencing.
Defines:
what to do
when to do it
what to avoid
Prevents rework, wasted spend, and poor upgrade decisions.
Where This Leads
Independent Outcome
In some cases, that leads to a construction pathway with Joe Builds.
In others, it may involve staging the work, refining the scope, or referring you to a more suitable builder based on project type, location, or budget.
The objective is not to secure the build.
The objective is to ensure the right outcome.