Texas · A new roof changes the offer, not a guaranteed percent
A new roof can get you replacement cost and a carrier that will write the house. It is not a fixed discount.
Roof age is an underwriting fact in hail country. Some carriers will not write, or will not renew, past an age they set. Some will write the house and settle hail at actual cash value: replacement cost minus depreciation. A documented new roof can move you to replacement cost and into a market that declined you last year. How much the premium moves is a quote. There is no statewide percent off for reroofing.
Coverage A still has to be a rebuild number. A new roof is one input to that number, not a reason to leave the limit at the loan balance. How carriers price the rest: how Texas home insurers decide the price. Hail timing: hail season. The same peril in Spanish: daños por granizo. The policy: Texas homeowners and the product page.