Typical costs: 1  Replacing aging, leaking or inadequate ductwork typically costs about $35-$55 a linear foot for labor and materials, or $1,000-$5,000 or more for a single-family home, depending on the length and type of ducts used (sheet metal, fiberduct or round flexible ductwork) and local rates.
Not Veterinary Advice: No. A snail is not meant to shed or molt its shell and snails normally will not shed their shells. However, it can happen by accident, which usually leads to the snail dying.It's thought to be possible that some snails could live without their shells, until they form a new one, but this is considered unlikely.Snails are unable to reattach to their shells if they become separated, but it may still be possible for them to use the shell as shelter temporarily.owever, it can happen by accident, which usually leads to the snail dying. It's thought to be possible that some snails could live without their shells, until they form a new one, but this is considered unlikely.
They are both molluscs, but the slug doesn't grow a shell during development. Whereas the snail does. Snails cannot live without their shells (except some aquatic snails and I think one rainforest variety-and this is for specific physiological and environmental reasons unique to these varieties).eport Abuse. No, snails and slugs are quite different animals. A snail would die if it's shell was removed, as most of its vital organs are in there. Slugs have a largely similar body plan, but their organs are all inside the relatively vulnerable main body or foot.