10 Questions to Ask a Roofing Contractor in Des Moines

Hiring a roofer is not just about comparing prices. The right contractor should be able to explain licensing, insurance, flashing, ventilation, crew oversight, warranties, timelines, and the exact scope of work in plain language. For homeowners searching for a roofing contractor Des Moines has, these ten questions can reveal whether a company has the technical skill, local accountability, and long-term service needed to protect the home.

Right Roofing President Ryan Johnson encourages homeowners to ask difficult questions before signing anything, including questions about installation details most people never think to raise. His central point is simple: a true roofing expert should not be afraid to explain how the work will be done.

1. Are you registered, insured, and qualified to work in Iowa?

A roofing contractor should be able to prove that the business is properly registered and carries appropriate insurance before anyone steps onto your property. In Iowa, construction contractors earning at least $2,000 annually from construction work generally must register with the Department of Inspections, Appeals, and Licensing. Most Iowa employers must also carry workers’ compensation insurance or qualify as self-insured.

Ask for the contractor’s registration information and a current certificate of insurance. Confirm that the policy is active instead of accepting an old document or a verbal promise. These coverages help protect against property damage and worker injuries.

Registration alone does not prove craftsmanship, but avoiding this basic question is a reason to move on.

2. Will you provide a detailed written scope of work?

A roofing proposal should explain exactly what the contractor plans to remove, install, repair, protect, and clean up. A total price without supporting detail does not give you enough information to compare contractors or hold anyone accountable later.

The scope should identify shingles, underlayment, flashing, drip edge, ventilation, disposal, property protection, decking allowances, payment terms, change orders, and timing.

Johnson notes that many problem calls begin after a homeowner trusted a contractor, paid a deposit, and never received a complete contract.

Construction can uncover hidden conditions. Damaged decking, deteriorated siding, or old flashing may not become visible until the existing roof is removed. The contract should explain how those discoveries will be documented, priced, and approved before extra work begins.

A handshake may feel personal, but a written scope protects both the homeowner and the contractor.

3. How will you handle flashing and roof transition areas?

The contractor should explain how flashing will be installed or replaced anywhere the roof meets a wall, chimney, pipe, vent, gutter, or other surface. Flashing is thin material, often metal, that directs water away from leak-prone joints and transitions. GAF describes it as a component that diverts water from vulnerable roof areas.

Do not settle for “Yes, we do flashing.” Ask whether siding will be removed when needed, damaged flashing replaced, penetrations properly sealed, and visible metal matched to the exterior.

Johnson identifies flashing detail as one of the most important and overlooked topics in contractor interviews. Roof-to-wall areas are especially critical because water can enter where several building components come together. A new field of shingles cannot correct a poorly detailed wall transition.

Ask about step flashing, kickout flashing, pipe boots, valleys, chimneys, skylights, and roof edges. The contractor should be able to describe the method, materials, and reason behind each detail without falling back on vague promises.

4. How will the roof work with my siding, gutters, windows, and ventilation?

A qualified contractor should evaluate the roof as part of the home’s full exterior system, not as an isolated layer of shingles. Water and moisture problems can involve siding, windows, wall transitions, gutters, attic airflow, or several components at once.

Johnson gives the example of a recurring leak near a roofline with a window above it. Replacing the roof without inspecting the window and siding may leave the original leak untouched. In some cases, repairing the wall or window could solve the problem without replacing the entire roof.

Ventilation deserves the same system-level thinking. Owens Corning says proper attic ventilation helps manage heat and moisture, and balanced systems need intake and exhaust. Ask how the contractor calculated ventilation needs and whether the proposed components work together.

A responsible roofer should follow the source of moisture rather than automatically recommending the largest project.

5. Who will actually be working on my roof?

Homeowners should know whether employees, subcontractors, or a combination of both will install the roof, and who will supervise the work. Subcontracting is common and is not automatically a problem. The real issue is whether the crew is experienced, vetted, insured, and held to the contractor’s installation standards.

Ask how long the company has used the crew, who supervises the work, and how quality checks are documented.

Right Roofing uses employee project managers and vetted subcontractor crews, with close oversight until a crew has proven its work.

This question matters because the person who presents the estimate may never handle a shingle, install flashing, or inspect the finished roof. A professional company should be able to identify who is responsible on-site and who has the authority to stop work or correct a problem.

Strong marketing does not guarantee strong installation. Crew experience and active supervision do.

6. What does your warranty actually cover?

A roofing contractor should clearly separate the manufacturer’s material warranty from the company’s workmanship warranty. These warranties protect against different problems, and a long product warranty does not automatically cover an installation mistake.

A manufacturer warranty generally addresses qualifying product defects. A workmanship warranty addresses installation problems. Ask whether leak investigation, labor, materials, flashing, and service calls are covered, along with exclusions and transferability.

Johnson stresses that product performance matters, but installation quality determines how all the parts come together. Right Roofing backs its labor with a 20-year warranty and maintains service technicians who can investigate problems instead of leaving homeowners to navigate them alone.

Ask who handles the claim if a shingle manufacturer is involved. Find out whether the contractor will inspect the problem, document it, contact the manufacturer, and help coordinate repairs.

Read the warranty language instead of treating the number of years as proof of protection.

7. Can you show me similar completed projects and local references?

A reputable roofer should be able to show relevant local work and connect you with customers who can discuss their experience. Ask for a recent reference and an older one. A new customer can speak about communication and cleanup, while a customer from five or ten years ago can tell you whether the roof has performed and whether the company returned when needed.

Look for projects similar to yours. Ask whether the scope matched the finished work, the property was protected, and concerns were handled well.

Right Roofing makes completed local projects visible through its website, including full replacements and smaller repairs such as flashing or vent work. That record gives homeowners a practical way to see where the company has worked and what types of problems it has handled.

Online reviews are useful, but they should not be the only evidence. Local projects and direct references offer more specific insight into the contractor’s work.

8. How long have you been in business, and will you be here later?

Longevity matters because roofing problems may appear later, when an unreachable contractor’s promise has little value.

Verify the local address, years in business, service process, and warranty support. After a major storm, be cautious of companies with little local history.

Johnson argues that an established project record shows more than experience. It shows whether the contractor has remained available long enough to face problems and resolve them. Right Roofing positions its decades of local work and moisture-infiltration experience as evidence that it can diagnose difficult issues and support customers after installation.

Visit or drive past the company’s listed office when practical. An address with no sign, staff, equipment, or visible business activity deserves additional research.

No contractor can promise that a project will never require follow-up. A trustworthy company can show that it has the people and processes to respond when follow-up is needed.

9. How long will the project take, and how will you protect my property?

The contractor should give you a realistic schedule and explain what daily life will look like during the project. Many residential replacements may be completed quickly, but timing depends on roof size, complexity, weather, decking conditions, crew size, and the agreed scope.

Ask about deliveries, dumpster placement, landscaping protection, nail cleanup, access, and weather delays.

Johnson notes that many Right Roofing projects take one or two days, depending on the full scope. That estimate should still be tailored to the home rather than presented as a universal promise.

Find out who will update you if the schedule changes. Ask whether the crew will clean the site each evening, how loose materials will be secured, and when the final inspection will happen.

Clear expectations reduce disruption and make deviations from the agreement easier to spot.

10. Are you pressuring me to sign today?

Pressure to make an immediate decision is a major warning sign. A roof is a costly, long-term investment, and a trustworthy contractor should give you time to review the proposal, verify credentials, compare scopes, and ask follow-up questions.

Be cautious of “today only” pricing, vague answers, deposit demands before a complete contract, or pressure not to compare bids.

The National Roofing Contractors Association advises consumers to evaluate professionalism and workmanship along with price and to remain skeptical of a bid that seems too good to be true.

Johnson’s best test is straightforward: “If you’re an expert in your industry, they’re easy questions.” A roofer who understands the work should be able to discuss flashing, ventilation, crews, contracts, and warranties without becoming evasive or defensive.

Take the time needed to make an informed decision. A reputable company should respect that process.

How should you compare roofing estimates beyond price?

Compare what each contractor will actually deliver, not just the number at the bottom of the page. The NRCA recommends obtaining several proposals from reputable local contractors and balancing price against material quality and workmanship.

Compare registration, insurance, products, tear-off, underlayment, flashing, ventilation, decking allowances, cleanup, supervision, warranties, and service support. A lower bid may omit necessary work.

Ask each roofer to explain major price differences line by line. One company may be replacing flashing while another plans to reuse it. One may include proper ventilation work, while another has ignored it. One may provide active project management and service support, while another disappears after collecting the final payment.

The strongest proposal is the one that gives you a complete, technically sound plan and a company you trust to honor it.

Ask better questions before choosing a roofer

The best contractor is not simply the company with the smoothest presentation or lowest price. It is the company that can explain the roof as a complete system, document the work, stand behind the installation, and remain available when questions arise years later.

Right Roofing encourages homeowners to ask tough questions because technical knowledge and accountability should be visible before the first shingle is removed. When evaluating a roofing contractor Des Moines has, look for clear answers about flashing, ventilation, crews, warranties, and long-term service. Those answers tell you far more than a price alone.

Watch the full Right at Home podcast episode

Watch the full episode of Right at Home: The Homeowner’s Inside Guide to Getting It Done Right on YouTube. Host Mike Downer and Right Roofing President Ryan Johnson explain overlooked hiring questions, flashing details, workmanship versus product warranties, and contractor warning signs. The conversation shows what informed, honest answers should sound like before you sign an agreement.

Frequently Asked Questions About Hiring A Roofing Contractor

How many roofing estimates should I get?

Get three or four proposals from reputable local contractors when practical. Compare the complete scope, installation methods, materials, crew oversight, and warranties. The lowest price is not automatically the best value if essential work has been excluded.

Should I ask a roofer for proof of insurance?

Yes. Request current proof of liability and workers’ compensation coverage before work begins. Confirm the information is active and applies to the contractor performing the project instead of relying on a verbal assurance.

What should be included in a roofing contract?

The contract should identify products, underlayment, flashing, ventilation, tear-off, disposal, cleanup, property protection, decking allowances, payment terms, timeline, warranties, and change-order procedures. It should also include the contractor’s legal business information.

Are subcontracted roofing crews a red flag?

Not by themselves. Subcontractors can produce excellent work when they are experienced, properly covered, consistently used, and closely supervised. Ask who manages the crew and how the contractor verifies installation quality.

What part of a roof is most likely to leak?

Leaks commonly develop around transitions and penetrations, including roof-to-wall areas, flashing, pipes, vents, chimneys, valleys, windows, and nearby siding. A qualified roofer should inspect the surrounding system rather than assuming shingles caused the problem.

What is the difference between a material warranty and a workmanship warranty?

A material warranty addresses qualifying product defects under the manufacturer’s terms. A workmanship warranty covers eligible problems caused by installation. Homeowners should read both documents because coverage, exclusions, labor, and claim procedures can differ.

Is the cheapest roofing estimate usually the best?

No. A low estimate may omit flashing replacement, ventilation improvements, quality-control supervision, property protection, cleanup, or meaningful labor coverage. Compare the work included and the contractor’s accountability before comparing totals.

What is the biggest roofing contractor red flag?

High-pressure sales behavior is one of the clearest warning signs. Also watch for vague answers, missing documentation, no detailed contract, unverifiable references, and an inability to explain how critical roof details will be installed.