A good contractor can make a repair feel easy. The wrong one can turn it into a year-long headache. Here’s how to check licenses, insurance, estimates, contracts and payment terms before anyone picks up a tool at your house.
Hiring someone to work on your home means letting a stranger inside and trusting them with systems you rely on every day: the furnace, the roof, the water heater, the wiring behind the walls. Plenty of contractors are honest, careful people who depend on repeat customers and referrals. A little homework up front still protects you from the few who aren’t, and it helps you choose between good options too.
This guide follows the process in order, from describing the job to making the final payment. Rules for licensing, permits, deposits and cancellation differ by state and often by city or county, so treat what follows as a list of questions to ask, then confirm the details that apply where you live.
Step 1 of 8
Contractors can give you better answers when you give them better information. Before you pick up the phone, write down what’s happening, when it started and anything you’ve already tried. Note the age of the equipment if you know it, and take photos of labels, model plates, stains or damage. Decide what you’re hoping for, whether that’s the simplest safe repair, a longer-term replacement or just an informed opinion. Check whether the equipment might still be covered by a manufacturer’s warranty or a home warranty plan you already have, since that can change who you should call first.
One page with the problem, photos, equipment details and your questions makes every call faster and helps you compare what each contractor tells you.
Step 2 of 8
Start with people who have seen a contractor’s work up close: neighbors, friends, coworkers and family nearby. Local supply houses and other trades you already rely on can also point you toward solid names. Online reviews help, but read them for patterns rather than star counts. Look at how a company responds to complaints and whether reviewers describe work similar to yours. Favor businesses with a real local address, a phone that gets answered and a name that matches their license and paperwork. Plan to talk with more than one company, even for a job that seems straightforward.
After a storm, crews may knock offering fast repairs. A reputable contractor won’t pressure you to sign on the spot, and many cities require door-to-door sellers to carry a permit.
When someone recommends a contractor, ask what work was done, how long ago, whether the final bill matched the estimate and how any problems were handled.
Step 3 of 8
Licensing for home service work is set by states and sometimes by cities or counties, and it differs by trade. In many places plumbers, electricians and HVAC contractors hold state licenses, while roofers, handymen and general contractors may be licensed, registered or not regulated at all, depending on where you live. Ask each contractor for their license number and look it up yourself on the licensing board’s website rather than trusting a photo or a logo. Confirm that the license is active, that it covers the type of work you need and that the name matches the business you’re hiring. Some boards also list past complaints or disciplinary actions.
In many states a handyman can take on small jobs but not licensed trade work such as gas lines, electrical panels or major plumbing. Ask what they’re allowed to do where you live.
Step 4 of 8
Insurance protects you if something goes wrong on the job. Ask for proof of general liability coverage, which can help pay for damage to your home, and workers’ compensation, which covers employees hurt while working. Requirements vary by state, and in some states an owner who works alone may be exempt from workers’ compensation. The cleanest way to verify is to have the contractor’s insurance agent send you a certificate of insurance directly, then check the dates and the business name. If an uninsured worker is hurt on your property, you could face questions you’d rather avoid, so for bigger projects a quick call to your own homeowners insurance agent is time well spent.
If the contractor plans to bring in subcontractors, ask whether those crews carry their own insurance and licenses, and who answers for the quality of their work.
Step 5 of 8
Ask for written estimates from more than one qualified contractor, and give each the same description of the job. A useful estimate spells out the scope of work, equipment or materials by type and grade, labor, permits, removal of old parts, cleanup and an expected timeline. It should also describe the warranty on both parts and labor. Lay the estimates side by side and look for gaps. A much lower number may leave out something the others included, like disposal or a permit. A much higher one may include upgrades you didn’t ask for. It’s fair to ask each contractor to explain the difference and walk you through repair and replacement options.
Some contractors use estimate to mean a rough figure and quote or bid to mean a firm price. Ask which one you’re getting and how long the number stays valid.
Entries such as ‘materials as needed’ or ‘additional labor’ with no detail leave room for surprise charges. Ask for specifics before you agree to anything.
Step 6 of 8
For anything beyond a small service call, get a written contract and read every page. It should list the contractor’s name, address and license number, the full scope of work, materials, start and completion dates, the total price and a payment schedule. Look for how change orders are handled, who pulls permits and schedules inspections, what the warranty covers and for how long, and how disputes get resolved. Never sign a contract with blank spaces. Depending on your state and how the sale happened, for example at your kitchen table rather than in the contractor’s office, you may have a short window to cancel, so ask what applies to you.
If the scope changes midway, get the new work and its price in writing before it starts. Verbal add-ons are a common source of billing disputes.
Permit rules vary by city and county, but the licensed contractor usually pulls the permit. If you’re asked to pull it as the owner, ask why, since that can shift responsibility to you.
Step 7 of 8
Payment terms deserve as much attention as the price. A deposit is common, especially when materials must be ordered, but paying most of the total before work starts leaves you with little leverage. Some states limit how much a contractor can collect up front, so check your state’s rules. Tie later payments to finished stages of work, and hold the final payment until the job is complete, any required inspection has passed and you’ve walked through the work together. Pay by check or card rather than cash so there’s a record, and get a receipt every time. If financing is offered, read those terms as carefully as the contract itself.
In many states an unpaid supplier or subcontractor can place a lien on your home even after you’ve paid the contractor. On larger jobs, ask for lien waivers with each payment.
Step 8 of 8
Once work begins, keep a folder with the contract, change orders, receipts, permits, photos and warranty papers. At the end, walk the job with the contractor and make a short punch list of anything unfinished. Make sure any permit is closed out after the final inspection, since open permits can cause trouble when you refinance or sell. Register new equipment with the manufacturer if that’s required to activate the warranty. If a problem comes up, contact the contractor first, in writing, and give them a fair chance to fix it. If that goes nowhere, your state licensing board or consumer protection office can explain your options.
Tick items off as you go. Nothing is saved or sent anywhere.
For a routine service call, one company you already know may be enough. For a replacement, a roof, a repipe or any job with a large price tag, estimates from more than one qualified contractor help you understand the scope and what a fair price looks like. Give each company the same information so their numbers can be compared fairly, and ask how long each estimate stays valid.
Not automatically. A low bid can be a fair price from an efficient company, or it can leave out permits, disposal, quality materials or warranty coverage. Compare what each estimate includes before comparing totals. If one number is far below the rest, ask the contractor to walk you through it. A clear, confident explanation is a good sign, and vague answers are worth noting.
It varies by trade, job size and state. Some states cap the deposit a contractor can request, and some jobs call for a larger payment up front because equipment or materials must be ordered. Be cautious of anyone asking for most of the price before work begins or insisting on cash. Tie the rest to completed stages, and hold the final payment until the job passes inspection.
Take your time. Get the person’s name, company, license number and any solicitor permit your city requires, then verify them yourself. Don’t sign anything on the doorstep, and be cautious about offers to handle your insurance claim for you. Call your insurance company directly to start a claim, and get estimates from local contractors you’ve checked before agreeing to any repairs.
Hiring well mostly comes down to slowing down at the right moments: before you pick a company, before you sign and before you make the last payment. Keep your paperwork in one place, verify what you're told and keep asking questions until the answers are clear. HomeIsSecure shares homeowner guides like this for general education; it isn't a contractor and doesn't send anyone to your home. For the licensing, permit, deposit and cancellation rules where you live, your state licensing board and local building department are the places to confirm.
The HomeIsSecure editors
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