Category: Guides

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 […]

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

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 […]

August 24, 2024

PAS ventilation requirements

Ventilation is really important when installing fabric measures as installing floor, wall or roof insulation decreases the air permeability of a building. When the ventilation is not taken into consideration and upgraded to minimum standards this may result in increased condensation, mould and an unhealthy […]

July 26, 2024

Lodging Heating Controls – ECO4 – GBIS

What are the rules about lodging heating controls? ECO4 – GBIS Ofgem rules say you should record all the heating control measures that you have installed in your project and lodge them to Trustmark, but it seems some funders request different combination for reasons only […]

April 13, 2024

Can an ECMK assessed property be lodged through ECO Surv?

Yes it can… PAS Hub to ECO Surv EPR file guide ECO4 Gurus recommend that if the Assessment report is completed using ECMK then the install and lodgement should also be carried out using PAS Hub. But will a little time and guidance it is […]

August 22, 2023

Saving energy at home

Watch the Energy Saving Trust’s advert here about Saving energy at home.

August 6, 2023

ECO4-gurus

Saving people £££ on home energy bills. ECO4 Gurus can help you receive free boilers, wall insulation, loft insulation, solar PV, heat pumps and more. ECO4 Gurus organise a free Retrofit assessment of your property to assess the energy efficiency of your home. Eco4 Gurus […]