Noise the landlord controls
When the noise comes from the landlord's own construction or renovation, you may have more leverage, because the landlord controls that work and owes you quiet enjoyment of your home.
Some construction noise during reasonable hours is often expected when a landlord makes repairs or improvements, and short-term, ordinary work usually has to be tolerated. But construction that is excessive, goes on for a long time, happens at unreasonable hours, or makes your unit very hard to live in can raise real concerns — including interference with your quiet enjoyment.
Start by asking the landlord about the scope and schedule, and request that work stay within reasonable hours. Put your concerns in writing, describe how the noise and disruption affect your ability to use your home, and keep records.
If the landlord's project effectively makes your home unusable for a significant time, that can raise questions about a rent reduction or other remedies. If ongoing construction by your landlord is seriously disrupting your home and they will not reasonably limit it, a free, confidential review can explain your options.
This is general information about California tenant rights, not legal advice. Every situation is different.