There is a great number of variables for this. You need to contact your specific insurance agency for details.
Your insurance company should pay for all damage to your home caused by a covered loss. However, the insurance company also has a duty to pay you for the replacement of the upper cabinets if you cannot find new base cabinets which match the upper cabinets.
In most countries, insurance companies will only pay out if a registered plumbing contractor has done the job and caused damage. This way its easier for insurance companies to stop insurance fraud because the damage caused by the plumber will be backed up by invoices and service agreements. To save yourself the headache, and the possibilities of causing damage to your house, if you can afford the cost call a registered plumber to do the job.
No
Yes, Homeowners insurance can cover plumbing damage when caused by a covered peril such as lightning, fire, wind, hail freezing etc. Refer to your insurance policy for covered perils. If your plumbing is just old or stopped up then that would be an owners maintenance issue. Homeowners insurance does not provide for maintenance.
Damage must be due to a covered cause for the damage to be claimed on your homeowners insurance. I cannot think of any way damage to a sewer could be from a covered cause.
Replace or repair all damaged as specified in your policy.
According to AnswerBag.com, it covers these things in addition to basic homeowners' insurance: "falling objects, weight of snow, sleet and ice, damage to water heating systems, volcanic eruption, damage from plumbing or appliances, freezing of plumbing or appliances and damage from artificially generated currents".
Not usually. Usually water damage has to be from a sudden burst of plumbing or flood or some sort. Any negligence in homeowning is a touchy subject for insurance.
No. Insurance does not cover mechanical problems.
er damage caused by windows
It should but you need to specify which insurance you have.
Basically, you have to pay for insurance. If you get into an accident, you are at least partly responsible for the damage that accident caused, whether or not you were at fault. Insurance helps to pay for that damage.