A customer called me three months after I installed her kitchen faucet. It was leaking. My first instinct was dread — warranty callbacks feel like working for free. But when I got there, I found a $2 O-ring had failed. Ten-minute fix. She was so grateful she referred me to four neighbors over the next year, generating about $6,500 in work. That free callback was the most profitable 10 minutes of my career.
Why You Need a Written Policy
Without a clear warranty policy, every callback becomes an awkward negotiation. The customer thinks everything should be free forever. You think you should not be responsible for a problem that showed up three months later. Neither of you is wrong — you just never agreed on the rules.
A written warranty policy, included on every quote and invoice, eliminates this tension. Mine is three sentences: "All labor is guaranteed for 90 days from completion. If something I installed or repaired fails within that period due to workmanship, I will fix it at no charge. Failures due to normal wear, misuse, or defective materials are not covered under the labor warranty."
That is it. Clear, fair, and easy for customers to understand. I have used this policy for four years and it has never once caused a disagreement.
When to Fix It Free
Fix it free when the problem is clearly related to your work and falls within your warranty period. A door you hung that starts sticking two weeks later. A patch in the drywall that cracks along your seam. A faucet connection you made that develops a drip. These are workmanship issues, and standing behind your work is non-negotiable if you want to build a reputation worth having.
Also fix it free when the cost of the repair is trivial but the goodwill is enormous. That O-ring I mentioned cost $2 and took 10 minutes. Charging the customer $125 for a minimum service call would have been technically justified but strategically stupid. She would have paid, but she would have felt nickel-and-dimed, and those four referrals would have gone to someone else.
Use this rule of thumb: if the callback takes less than 20 minutes and costs less than $10 in materials, eat it. The return on goodwill will exceed the return on a small invoice every single time.
When to Charge
Charge when the problem is not related to your work. You replaced a kitchen faucet and three months later the garbage disposal fails. That is not your callback — that is a new job. Be polite but clear: "That is a separate issue from the faucet I installed, but I am happy to take a look and give you a quote."
Charge when the customer caused the problem. You installed a towel bar with proper anchors, and the customer's teenager hung from it and ripped it out of the wall. That is not a workmanship failure. Charge for the repair.
Charge when the warranty period has expired. Ninety days is generous for handyman work. Some guys offer 30 days. Very few offer more than a year. If a customer calls six months after a job with an issue, you are well within your rights to treat it as a new service call.
Charge when materials fail. You installed a light fixture and the switch inside the fixture dies. That is a manufacturer defect, not your workmanship. Help the customer file a warranty claim with the manufacturer if you want to go above and beyond, but the labor to replace the defective part is a billable service call.
The Gray Area
Sometimes a callback does not fit neatly into "free" or "charge." The drywall patch you did cracked, but the house also settled. The caulk around the tub you applied is peeling, but the customer has been using a harsh chemical cleaner on it. The deck board you replaced is warping, but so are the original boards next to it.
In these gray areas, I split the difference. I will come out for free and fix the issue, but I explain what likely caused it and suggest preventive steps. This preserves the relationship, demonstrates professionalism, and educates the customer so the same issue does not recur. If the fix requires significant materials (a new deck board, a tube of specialized sealant), I will cover the labor and ask the customer to cover the materials. That feels fair to both sides.
Tracking Callbacks
Track every callback — whether you charge for it or not. Record what the issue was, what caused it, how long it took to fix, and what it cost you. Over time, patterns emerge. If you notice that a particular brand of faucet keeps leaking at the supply connection, stop installing that brand. If drywall patches in a certain type of older home keep cracking, adjust your technique or your warranty language for those jobs.
Callbacks are also data points on your own work quality. If your callback rate is above 5 percent, something in your process needs attention. Below 2 percent and you are doing excellent work. I track mine in HandyBook by tagging jobs as warranty callbacks — my rate has been 2.8 percent over the past year, which tells me my workmanship is solid but I have room to improve on a few specific tasks.
The Business Case for Standing Behind Your Work
Free warranty callbacks are not charity. They are marketing. A customer who gets a problem fixed quickly and cheerfully at no charge becomes your loudest advocate. They tell their neighbors. They leave glowing reviews. They call you first for every future project. The $50-100 you "lose" on a warranty visit generates thousands in future revenue. Think of warranty work as an investment in your reputation, not a cost to your business.