Insulated Render

What is Insulated Render?

Exterior wall insulation (EWI) is a great and reliable method of insulation applied to buildings without a cavity or solid wall construction systems. In this case, two layers of material (external wall insulation) are used – one aims to provide insulation while the other, an outer layer of mineral or synthetic plaster, protects building against harsh weather conditions.

It also provides a sleek, decorative finish. Installing EWI will add approximately 100mm to your home, depending on the thickness of the insulation used.

External wall insulation systems are breathable, long-lasting solutions applicable to most homes and commercial buildings. The insulated render systems are weathertight answers to properties that sustain constant loss of heat, drafts or are frequently exposed to a harsh weather climate and therefore damp prone.

Such insulation material will be ideal for many British buildings, where constant winds and rain are inevitable; the same goes for the increase in energy prices.

External Wall Insulation Benefits

  • Reduce Energy Bills - reducing the amount of heat escaping through your walls
  • Heat your home faster and keep it warmer for longer
  • Cooler summers, warmer winters
  • Protects the building's structure and improves weatherproofing
  • Reduce damp and dondensation
  • Reduces carbon footprint
  • Won't affect the size of your rooms
  • Acoustic insulation and fire resistance


Thermal efficiency = long term savings

Benefits of EWI include improved protection of external walls against rain penetration and absorption, reduction of CO2 emission, reduced draughts through the walls and around the window frames, improved sound resistance, to name a few.

An exterior walls render system can not only help you save money on your heating bills, but also grant you a return on investment. 

It’s worth mentioning that warmer walls reduce the risk of condensation on interior wall surfaces and help address moisture problems (highly prevalent in the UK), as well as increase your property’s energy efficiency rating (EPC).

A render system like this improves thermal performance of the entire household, giving you an eternal peace of mind and certainly deeper pockets…

Render on insulation = A safer home

By insulating your home with EWI renders, you not only create a more sustainable living environment for your family, but more importantly prevent harmful growth of bacteria and mould in and around your home.

The EWI renders help to thoroughly insulate your home exterior walls + windows from condensation, water and unnecessary absorption, ensuring dry and safe to breathe living conditions at all times.


EWI will transform the exterior of your home. In most cases, planning permission is required before any work can be undertaken. EWIs must be installed in accordance with national building regulations.

The site in question must also be examined to determine suitability before installation, as incorrect treatment can be detrimental to the fabric of the building in the long term.

Where appropriate, an experienced professional must carry out a condensation risk analysis. If a ‘dew point’ occurs between the wall and the insulation, or inside the insulation itself, a vapour barrier should be used between the wall and the insulation.

The selection of EWI for a project depends on the type of your existing wall. For example, solid stone walls may be breathable and allow little moisture penetration & evaporation.

Using breathable MW insulation combined with a breathable non-acrylic exterior plaster or other finish allows the wall to remain respirable, allowing for great thermal insulation along with consistent air flow.


First, please ensure your check the construction of your building. If it is made of concrete or is diverges from the usual standard in any other way, it may qualify for insulation rendering.

If the brick layers have an identical appearance, the chances are you have a home inclusive of a ‘cavity’.

In cases where they don’t look the same, and some bricks appear to be in reverse, you may have something called ‘header bond’ or ‘flemish bond’.

If you notice these being a part of your property, inherently composing majority of the house, it’ll likely mean you have solid walls and can benefit from render insulation.

The process of external wall insulation

Our process incorporates the latest industry standards and best practices to ensure a successful installation. Here is an overview of our process:

Step 1 – Initial Consultation

  • We begin with an initial consultation to understand your specific needs, goals, and budget.

  • Our team assesses the existing condition of your property’s exterior walls and evaluates their suitability for insulated render.

Step 2 – Planning and Design

  • Based on the information gathered during the consultation, we develop a comprehensive plan and design for your external wall insulation project.

  • We select the appropriate insulation materials, taking into account factors such as thermal performance, environmental impact, and local building regulations.

Step 3 – Surface Preparation

  • Prior to installation, we prepare the exreterior walls by cleaning them thoroughly and repairing any damaged areas.

  • We remove loose or flaking paint, debris, or other contaminants to create a clean and stable surface for the insulated render Manchester.

Step 4 – Insulation Installation

  • We install the chosen insulation material, whether it’s expanded polystyrene (EPS), mineral wool, or another suitable option, using adhesive or mechanical fixings.

  • Our experienced installers ensure that the insulation boards are properly aligned and securely attached, creating a continuous insulation layer without any gaps.

Step 5 – Reinforcement and Rendering

  • To reinforce the house insulation Manchester and provide a protective layer, we apply a mesh reinforcement over the insulation boards.

  • We then apply a high-quality render system, customized to your preferences, which can include insulated render, polymer-based render, or other suitable options.

Step 6 – Finishing Touches

  • Once the render is applied, we can further customize the appearance with various colors, textures, or finishes to achieve your desired aesthetic outcome.

  • We pay close attention to detail and ensure a smooth and even finish for a visually appealing result.

Step 7 – Quality Assurance and Maintenance

  • Throughout the installation process, our team conducts rigorous quality checks to ensure that the work meets our high standards and adheres to industry regulations.

  • We provide guidance on maintenance practices to ensure the longevity and performance of the insulated render Greater Manchester.

By following this comprehensive process, we aim to deliver exceptional external wall insulation solutions that improve the energy efficiency, thermal comfort, and overall value of your property.