Choosing an installer

Finding a qualified and reliable installer is the most important step in your green home journey. A high-quality installation ensures your system runs efficiently, safely, and is eligible for government grants.

Key accreditations to look for

1. MCS Certification

The Microgeneration Certification Scheme (MCS) is an industry-led quality assurance scheme.

2. TrustMark

TrustMark is the only Government-endorsed quality scheme for home improvements.

3. Consumer Protection Schemes

Reputable installers should belong to a code of conduct scheme that protects your deposit and provides mediation if things go wrong.

  • RECC (Renewable Energy Consumer Code)
  • HIES (Home Insulation & Energy Systems Quality Board)

Questions to ask before signing

Before you agree to any work, we recommend getting at least three quotes and asking the following:

  1. “Can I see your MCS and TrustMark certificates?” (Don’t just take their word for it).
  2. “Are you a member of RECC or HIES?”
  3. “Do you provide an insurance-backed guarantee (IBG)?”
  4. “Will you handle the grant application process on my behalf?”
  5. “Can you provide references for similar properties in this area?”

The survey process

A professional installer should always perform a technical survey before giving you a final quote. For heat pumps, this must include a room-by-room heat loss calculation. If an installer gives you a fixed price over the phone without seeing your property, be very cautious.

Retrofit Coordinators (PAS 2035)

If you are planning multiple improvements (e.g., insulation AND a heat pump), consider hiring a Retrofit Coordinator. They are qualified professionals who oversee the entire project to ensure that measures work together and don’t cause issues like condensation or poor air quality.