Thermal performance improvements for your home

Assessments and installations

Get cosy image
Welcome to My Cosy Castle!

Are you feeling the cold this winter?
Is your home too hot in summer?

Do you want to save on energy bills?
Getting off gas?
We can help.

There can be many reasons why a home isn’t as cosy as it could be. Where to start?

A good starting point is booking for an assessment.

Our expert assessors have years of experience detecting and treating thermal performance issues in homes and businesses.

We have tried and tested solutions for treating draughty doors, windows, gaps and cracks around your home. Perimeter seals and draught excluders are guaranteed and are built to withstand the test of time.

We are an authorised installer of ecoGlaze secondary glazing, a fantastic way to insulate single glazed windows at a fraction of the price of double glazing and without the need for extensive carpentry work. Check out the following website for more info

Draught proofing assessment $250

A Draught proofing assessment will give you an insight into where your home is losing heat. Our inspection of your home will be followed by a quote for improvement works.

Learn More

Thermal performance assessment $650

If the problem is likely to be bigger or if you are wanting to fine tune the energy use in your home, a Thermal Performance assessment will be beneficial. From this assessment, we take a detailed analysis of why your home isn’t living up to expectations.

Learn More

Draught Proofing installation

Following an assessment, we are happy to run the installation to transform your home into a cosy castle.

Learn More

ecoGlaze secondary glazing

Insulate your windows without the cost of double glazing.

Learn More
In essence, secondary glazing, like double glazing is the process of insulating windows for thermal or acoustic benefits.
Where double glazing requires replacement of both the glass and usually the existing window sash, secondary glazing enables you to keep your existing windows by installing a secondary pane over the glass.
My Cosy Castle is an authorized installer of ecoGlaze. The ecoGlaze system utilises a clear acrylic pane, framed by magnetic mouldings. There are three different types of ecoGlaze mouldings which are suited to different types of windows.
For more information about ecoGlaze, check out the following link:
Just because the glass of your windows is now better insulated, draughts could still be entering your home around the edge of openable windows.
Are there draught seals on your windows? Do they work well?
We have draught seals for many different types of windows and doors.
Ventilation is indeed important in your home to remove odours and moist air. Controlled ventilation is what you should be aiming for. Choose when to ventilate your home by opening a window or door when necessary.
Wall vents are only required if you have an active fireplace or unflued gas heater. In many homes, wall and ceiling vents are superfluous and are literally a hole in your wall or ceiling where draughts can pass freely.
It is likely your assessor has provided you with a list of things to increase the thermal performance of your home. Unless your assessor also provided a detailed quote for draught proofing, we won't know what door or window treatments are required.
Our draught proofing assessments are thorough and seeing as we are experts in draught proofing, there is a chance we may find significant draught issues that your assessor may have overlooked.
  • Melbourne, Victoria, Australia

Luke Harden

Thermal performance assessor, retrofit installer

Hi, I'm Luke. I have over eight years experience as an energy efficiency assessor and retrofit installer. I look forward to helping transform your home into a cosy castle.

Read More  

 (Luke’s) knowledge is brilliant. I’ve just finished reading through his thorough report and it’s very clear and actionable. 

Christie – Sunbury 2021

 We are sooo cosy and warm!! It was noticeable that night and after a fire the other night.. we are thrilled. Thank you for your excellent work. 

Wendy - Woodend 2021

 We are very happy with the results. Both in sound reduction and heat retention. 

Sam – Coburg North 2021

 House is noticeably warmer and quieter which is great. 

Braden – Rosanna 2021

 The house is noticeably warmer now the weather is starting to cool 

Mark – Essendon 2021

 I cannot feel any of the draughts ... that were just normal. And (the work is) all very neat, I noticed how meticulous the work was. 

Lynn – Brunswick 2021

 Especially happy with (Luke’s) attitude and skills 

Helen and Pat – Clunes 2020

 (Luke was) a pleasure to have working in my house. 

Wendy – Woodend 2020

 So far we are very impressed- the room is staying warmer with less heating and it is much quieter 

Peter – Alphington 2020

 It was a pleasure having you here to do the work. We have been impressed by the way all of the crew have gone about it. 

Peter – Clifton Hill 2020

 Thanks for the wonderful work with the draught proofing - there is a noticeable difference! 

Camille – Elwood 2020