Whether you’re a professional or just a DIY enthusiast, once you’ve personally tackled home renovation, your knowledge of the subject will undoubtedly grow significantly. Don’t ask why—those who’ve been through it know all too well.
So aside from highly specialized technical expertise, what practical tips regarding plumbing and electrical systems can we share? Let’s find out together below!
Waterproofing work should only be carried out after concealed works have been completed and passed inspection. It’s best to use coating-type waterproofing, and remember to conduct two water‑holding tests after completion to verify its effectiveness.

In bathrooms, the waterproof layer should ideally extend at least 1.8 meters high—roughly the height of an average person.

Areas frequently exposed to water, such as floor drains, internal corners, and pipe penetrations, must receive extra layers of waterproofing. Additionally, it’s advisable to install odor‑proof floor drains—experienced homeowners know exactly why.

Faucets and washbasins should match in size; even slight dimensional discrepancies can make installation impossible. Moreover, the sink used for washing vegetables is particularly important—opt for one with a larger capacity to avoid clutter and inconvenience.

When installing lighting, consider dual‑control switches whenever possible to save yourself unnecessary trips back and forth. Also, avoid placing switches behind doors, as this can be very inconvenient during daily use.

Standard outlets are rated at 10A, 250V, and 2,500W (though their actual power rating is closer to 2,200W). For higher‑power appliances like electric ovens or air conditioners, use 16A outlets to prevent short circuits or overload issues.

Avoid positioning bedroom air conditioners directly facing the bed. Constant airflow toward a sleeping person may lead to dry skin and dehydration. Additionally, ensure the AC vent is angled slightly outward; otherwise, rainwater could seep into the wall.

These are some essential yet often overlooked tips for home renovation—be sure to keep them in mind when planning your project!



