Plumbing vent boots can be all plastic, plastic and metal, or even two-piece metal units. Check plastic bases for cracks and metal bases for broken seams. Then examine the rubber boot surrounding the pipe. That can be rotted away or torn, allowing water to work its way into the house along the pipe. With any of these problems, you should buy a new vent boot to replace the old one. But if the nails at the base are missing or pulled free and the boot is in good shape, replace them with the rubber-washered screws used for metal roofing systems. You’ll find them at any home center with the rest of the screws. You’ll have to work neighboring shingles free on both sides. If you don’t have extra shingles, be careful when you remove shingles so they can be reused. Use a flat bar to separate the sealant between the layers. Then you’ll be able to drive the flat bar under the nail heads to pop out the nails.
There's no national standard or regulation for handymen. Licensing and regulation vary by state. New Jersey, for example, requires handymen who work for a profit to register with the state and carry insurance. California requires handymen to carry a license from the State Contractors License Board to work on any project that exceeds $500 in labor and material costs. Find out before you hire the handyman if he or she has the skills needed to complete your project. Need Handyman Repairs? Click Here