I want to put plastic film on the walls to insulate winter cold.
Welcome to the Bunnings Workshop community @araceliagcaoili. It's brilliant to have you join us, and many thanks for your question about Winter-proofing your home.
Word of mouth is always a great way to find reliable local tradespeople. Alternatively, you might consider using hipages, or a job like this could be suited to someone on Airtasker. Before engaging someone to do the job, make sure to research whether they are the right person for you. If you did want to give this project a go yourself, I trust our helpful members will have plenty of advice and encouragement for you.
As well as the plastic over your windows, you might like to have a read through this helpful guide: How to Winter-proof your home. There are plenty of neat minor fixes you can do yourself to prevent heat from escaping and the cold from entering your home.
Please let me know if you have any questions.
Welcome to the Bunnings Workshop community @araceliagcaoili.
I would encourage you to tackle this project for yourself. We've applied privacy film on our windows and it's very simple. You might also get confidence from what @prettyliving achieved with her D.I.Y. tinted windows project. I'm sure Jess would also encourage you to have a go as she's passionate about D.I.Y.
All the best,