1. Introduction: The Hidden Challenge in Retrofit Delivery
The UK’s retrofit revolution is transforming homes—but not every project achieves the intended result. Poor workmanship, incomplete assessments, or non-compliant installations can lead to damp, mould, ventilation issues, or wasted investment.
At Synergy Group, we specialise in retrofit remediation—diagnosing and correcting failed or underperforming retrofits to bring homes back to compliance, comfort, and energy efficiency.
2. What Is Retrofit Remediation?
Retrofit remediation means fixing what others missed. It involves detailed inspections, technical testing, and re-designing failed energy measures to meet PAS 2035 standards.
Common issues include:
- Insulation bridging or moisture traps
- Poor ventilation and indoor air quality
- Faulty or mis-sized heating systems
- Lack of thermal continuity or air-tightness
- Missing documentation for TrustMark compliance
We ensure every measure performs as designed—safely and efficiently.
3. Why Remediation Matters
Remediation isn’t just about repairs—it’s about restoring trust and performance. Poorly executed retrofit can:
- Waste public funding and reduce energy savings
- Increase condensation and mould growth
- Create health risks for occupants
- Jeopardise compliance under ECO4 or SHDF
Synergy helps local authorities, social landlords, and private homeowners identify and resolve these risks while maintaining funding eligibility and performance guarantees.
4. Our Approach
Every project begins with a technical survey led by accredited Retrofit Coordinators and Assessors.
We:
- Conduct detailed building diagnostics (thermal imaging, ventilation testing).
- Identify root causes of failure.
- Develop a compliant, cost-effective remediation plan.
- Oversee installation and final performance testing.
Our goal is to restore homes to PAS 2035-compliant condition, ensuring energy savings are real and measurable.
5. Real-World Outcomes
Remediation often delivers greater long-term performance than original works.
We’ve helped councils and landlords across Hertfordshire and Buckinghamshire remediate properties under SHDF and ECO4, reducing occupant complaints, lowering heat loss, and restoring tenant satisfaction.
6. Why Choose Synergy
- PAS 2035 Certified & TrustMark Registered
- Retrofit remediation experts with in-house technical design and coordination
- Trusted partner to local authorities and the National Energy Foundation (NEF)
- Evidence-based verification and performance reporting
We turn failed retrofits into high-performing, Net Zero-ready homes.
7. Call to Action
If your retrofit hasn’t delivered the results promised, connect with our team today to arrange a technical remediation survey and get your project back on track.