
Key Takeaways
Start here
Why the Process Feels Unfamiliar (and How to Get Comfortable)
Next
Making First Contact and Getting Estimates
Then
Reading and Signing a Roofing Contract
On the day
What Happens on Installation Day
Finish strong
Final Inspection and Project Close-Out
Why the Process Feels Unfamiliar (and How to Get Comfortable)
For most homeowners, hiring a roofer is a once-or-twice-in-a-lifetime experience. Unlike calling a plumber for a leaky faucet, a roofing project involves significant money, a multi-day schedule, and decisions about materials you may have never thought about before. That unfamiliarity is completely normal — and the best antidote is simply knowing what each stage looks like before it arrives.
This guide walks you through the process from your very first phone call to the moment you sign off on the finished job. If you want to go deeper on costs and budgeting before you start making calls, the Roof Costs & Planning hub is a helpful companion resource.
Decking
The flat structural boards or panels nailed to your roof's rafters. Shingles and underlayment are attached on top of the decking, so it must be solid and dry before new roofing materials go down.
Flashing
Thin strips of metal installed wherever the roof meets a vertical surface — chimneys, walls, or vents. Flashing prevents water from seeping into those joints.
Underlayment
A water-resistant layer of material laid directly on the decking, beneath the shingles. It acts as a secondary barrier against moisture if the shingles are ever damaged.
Workmanship warranty
A guarantee from the roofing contractor (separate from the material manufacturer's warranty) that covers defects caused by installation errors for a stated period.
Building permit
Official local government approval required before certain construction work — including most full roof replacements — can legally begin. A permit ensures an inspector verifies the work meets local building codes.
Making First Contact and Getting Estimates
Your first task is to identify several licensed, insured contractors in your area and request written estimates — aim for at least three. When you call or email, be ready to describe the issue (full replacement, repair, or inspection) and the approximate size and age of your roof if you know it.
A contractor's first visit should include a physical inspection of your roof — not just a look from the driveway. During this visit, they assess the decking (the structural layer under the shingles), flashing (the metal strips around chimneys and vents), and ventilation. Ask each contractor to explain what they found and why they are recommending specific work.
Each written estimate should itemize labor, materials, disposal fees, and any permit costs. For a primer on the materials likely to come up, see the Roof Materials overview. To understand what a fair budget looks like, A First-Timer's Roadmap to Budgeting for a New Roof walks through the numbers step by step.
Reading and Signing a Roofing Contract
Once you have chosen a contractor, you will sign a written contract before any work begins. Take time to read it carefully — this document is your primary protection if something goes wrong. A complete contract should include:
- Scope of work — exactly what will be removed, replaced, or repaired
- Materials — brand, type, and specifications for shingles, underlayment, and flashing
- Timeline — estimated start and completion dates
- Payment schedule — deposit amount, when final payment is due
- Permit responsibility — confirmation the contractor will obtain required permits
- Warranty terms — both the manufacturer's material warranty and the contractor's workmanship warranty
- Clean-up — who removes debris and how quickly
Never sign a contract under pressure. A trustworthy contractor will give you time to review it. For a broader look at the full project arc, The Full Roofing Project Planner covers every decision point in detail.
Ask for Proof of Insurance Before Signing
Request a copy of the contractor's general liability insurance and workers' compensation certificate before you sign anything. Call the insurer directly to confirm the policy is current. If a worker is injured on your property and the contractor lacks valid workers' comp coverage, you could face liability.
What Happens on Installation Day
On the morning work begins, the crew will typically arrive early and set up protective tarps over landscaping, porches, and vehicles near the house. Old shingles and underlayment are stripped and loaded into a disposal trailer. The crew then inspects the decking underneath — if any boards are soft, rotted, or damaged, they will need replacement before new materials go down.
New underlayment is laid first as a moisture barrier, followed by the shingles, new flashing around penetrations, and ridge cap at the peak. Expect noise — nail guns and foot traffic on the roof are loud throughout the day. Keep pets and small children indoors and away from falling debris zones.
It is reasonable to check in with the crew lead once or twice during the day, but avoid interrupting the work unnecessarily. If you notice something that concerns you — materials that look different from what the contract specifies, for example — note it and raise it calmly with the lead before the crew leaves for the day.
Final Inspection and Project Close-Out
When the crew finishes, do a walkthrough with the contractor before making final payment. Walk the perimeter of the house and inspect the following:
- Shingle alignment and any visible gaps or lifted edges
- Flashing sealed tightly around chimneys, vents, and skylights
- Gutters cleared of debris and still properly attached
- All nails and old shingle material removed from the yard, driveway, and garden beds
Ask for copies of any permit sign-off documents, the manufacturer's warranty registration, and a written receipt showing the project is paid in full. Keep these in a safe place — you may need them for a future home sale or an insurance claim.
If you spot issues, raise them before the crew leaves whenever possible. Minor touch-ups are far easier to resolve on the day than weeks later. For guidance on vetting your contractor thoroughly from the start, Finding a Roofer You Can Trust is a detailed companion guide worth reading.
This article is for general informational purposes only. Roofing requirements, permit rules, and contractor licensing standards vary by state and locality. Always verify local requirements with your building department and consult a licensed professional before starting any roofing project.
