Hi @Rebecca Shine,
This is the type of expense that would normally have to be capitalized (and depreciated over a number of years based upon its class life for tax purposes; "useful life" is primarily used with financial accounting).
However, there are 3 safe harbors that may allow you to expense it right away as an operating expense.
1) Routine maintenance. To qualify as routine maintenance, you must reasonably expect to perform the repair again within the asset's class life. You probably do not qualify for this, but talk to your CPA about all of the facts and circumstances.
2) De Minimis Safe Harbor. If the expense was less than $2,500, you can deduct is under this safe harbor if you make the election. Obviously $4,300 for the entire job is over that amount, but let your CPA examine the invoice (or invoices) to see if you may still qualify.
3) Small Taxpayer Safe Harbor. This safe harbor requires that you perform a calculation, but basically if the total costs (repairs + improvements) to a building within the year are under a certain amount (not to exceed $10,000) you may be able to deduct everything as a repair during the year. This is an election you will have to make, and you should have your CPA perform this calculation most years as a matter of practice.