November 25, 2025

Installer Compliance Guide PAS2030 PAS2035

In this article, Installer Compliance Guide PAS2030 PAS2035, we will cover basic overview to help installers start to understand how they can begin to ensure compliance to PAS 2030 & PAS 2035 for Retrofit Projects. It is not an in-depth guide to how to do […]

November 20, 2025

How To Calculate POMI and POPT For IWI

Description This training guide explains how to calculate the percentage of measure installed (POMI) and percentage of property treated (POPT) for IWI. In short, you need to know the total area of the element that could be treated and divide that into the total area […]

November 14, 2025

Getting PAS 2030 Accreditation

Getting PAS 2030 Accreditation: Real Advice for Real Installers – With Simply certification I am Andrew Foote and if you’re an installer thinking about PAS 2030 accreditation, here’s the truth: it’s not easy. But with the right guidance, it’s absolutely achievable — and Eco4 Gurus […]

October 16, 2025

ECO4 in the private rented sector (PRS) and social housing (SH)

Understanding ECO4 Eligibility: How PRS and Social Housing Properties Are Treated Differently If you’re navigating the world of energy efficiency upgrades under the ECO4 in the private rented sector or social housing, one of the first things to understand is that not all homes are […]

October 14, 2025

Domestic Retrofit: What People Get Wrong

(And How to Get It Right) Domestic retrofit what people get wrong. Hmm! Let’s be honest — Domestic Retrofit isn’t just about ticking boxes or installing shiny new kit. It’s about making homes warmer, healthier, and more energy efficient without causing unintended problems down the […]

October 10, 2025

Updated OFGEM Forms for ECO4 & GBIS

A relaxed update from your retrofit friends at ECO4 Gurus – Updated OFGEM Forms If you’ve been keeping an eye on the retrofit world (like we do every day), you’ll know that Ofgem has been busy updating the forms and guidance for both ECO4 and […]

October 10, 2025

File Naming Guide – Pashub

Let’s be honest—file naming isn’t the most glamorous part of retrofit coordination. But if you’ve ever had to dig through a folder full of ‘final_v2.pdf’ or ‘doc123.pdf,’ you’ll know how quickly things can go sideways. At ECO4 Gurus, we live and breathe domestic retrofit—and that […]

August 22, 2025

Wet rooms ventilation and IWI installation

This post is for people involved in domestic retrofitting of energy efficient measures. It is an overview of what constitutes a wet room and how this effects ventilation and IWI installation to properties that have Kitchen/diners, through lounges, open plan properties, etc, and a bit […]

May 7, 2025

GURU Update – PIBI’s and RC/Designer Inspections (PAS2035:2023)

GURU Update PIBI’s and RC/Designer Inspections As we understand it, and we have been lodging under PAS2023 for almost a year, the below is what’s accepted for PIBI’s and RC/Designer Inspections in the current climate. PIBI’s PIBI’s need to be signed by the client and […]