If you’re planning home improvements under the ECO4 scheme (“>Energy Company Obligation), choosing the right installer is one of the most important decisions you’ll make. The scheme provides government-backed funding for energy efficiency upgrades—like insulation, solar panels, and air source heat pumps—but the installer you choose will directly affect the quality of work and whether you even qualify for support.
With so many ECO4 scheme installers in the market, how do you separate genuine professionals from unreliable operators?
This guide will help you make an informed choice using experience-backed steps and expert recommendations.
Trustmark website
1. Make Sure They’re TrustMark Registered
The ECO4 scheme requires installers to meet specific quality and compliance standards. The most important thing to look for is TrustMark registration, which is the government-endorsed quality mark for tradespeople in the energy efficiency sector. It shows the installer follows best practices and is subject to regular oversight. Beyond that, most reputable installers will also hold relevant industry certifications—ask what accreditations they carry and whether they’re experienced with ECO4-specific requirements.
2. Choose Installers with Proven ECO4 Experience
Not all installers are familiar with the complexities of the ECO4 scheme. You need someone who’s actively working within it, not just a general contractor. Ask:
- How many ECO4 projects they’ve completed.
- What specific measures they specialise in (loft insulation, ASHPs, solar PV, etc.).
- If they’ve worked with local authorities or energy suppliers.
Installers with ECO4 experience understand the compliance process and can guide you through funding eligibility and documentation without delays.
3. Check for Independent Reviews and Case Studies
A good installer should have nothing to hide. Before making your decision, take time to research what others are saying about their work. Independent feedback gives you a clear picture of the company’s reliability, customer service, and the quality of their installations. You’ll often find valuable red flags—or green lights—that you wouldn’t get from speaking to the company alone.
Look for:
- Independent reviews on Trustpilot, Checkatrade, or Google.
- Case studies or project examples that show results.
- Evidence of satisfied customers—especially in your area.
Also check if they’ve been recommended or referenced by other credible sources in the industry.
4. Use Trusted Sources to Find Reputable Installers
Instead of searching blindly, rely on websites and organisations that specialise in ECO4 support and guidance.
These resources help by:
- Explaining how the scheme works in plain language.
- Breaking down the types of installers to avoid.
- Listing questions to ask during your search.
Using these sources can save you from costly mistakes and help ensure your home upgrades are done properly, by people who understand both the technical work and the scheme itself.
Final Thoughts
Hiring the right ECO4 installer isn’t just about ticking boxes—it’s about protecting your home, your funding, and your long-term energy savings. Look beyond price and focus on trust, credentials, and proven experience within the scheme.
If you’re unsure where to start, check government directories or industry-supported guides to find the right professionals.
