There are a few very important things to consider when hiring a roofing contractor in Maryland: the contractor’s licensing, manufacturer certifications, and experience and the warranty coverage. Nail those four requirements, and you are far less likely to end up with shoddy workmanship, surprise bills, or warranty headaches after the work is complete.

Maryland homeowners face a real mix of weather conditions throughout the year, from humid summers and heavy rain to ice and snow in winter. That combination puts real stress on a roof, which is why who you hire matters just as much as what materials get installed. Use this guide to make a confident, informed decision.

Verify Licensing and Insurance

Start by checking whether a contractor holds a valid license in Maryland; without it, they cannot legally operate. Should an accident occur on the job, having liability insurance plus workers’ compensation becomes essential for your protection. These safeguards ensure you are not left responsible if damage or injury happens mid-project.

Before any agreement, request the license number because verification matters. Getting licensed means meeting standards set by the Maryland Home Improvement Commission. A trustworthy professional won’t hesitate to provide proof. Only those with a valid Home Improvement Contractor (HIC) permit can legally work in the state.

Look for Manufacturer Certifications

Manufacturer certifications are one of the clearest signals of a contractor’s quality and commitment. These programs require contractors to meet strict installation standards, maintain strong customer satisfaction records, and stay current with product training.

Some credentials carry more weight than others. Only a select few roofers across the country qualify for top-level recognition, like the Owens Corning Platinum Preferred distinction. Because of this standing, those professionals unlock extended warranty options unavailable through regular installers.

• Owens Corning Platinum Preferred or Preferred Contractor status
• GAF Certified Plus designation
• CertainTeed ShingleMaster Preferred status

Ask About Warranty Coverage

The coverage you get under warranty will vary wildly depending on which contractor you use to install your roof. The materials manufacturer and the level of certification the contractor has also influence what coverage you receive.

For instance, the Platinum Protection warranty that includes lifetime workmanship coverage is only offered by Owens Corning Platinum Preferred contractors. Regular contractors are typically limited to product warranties that only cover material. Knowing this distinction before you hire can save you from a costly gap in coverage later.

Ask each contractor to explain exactly what warranty they can offer on both materials and workmanship. If they cannot clearly answer that question, move on. You can learn more about Owens Corning warranty options to understand the differences between coverage tiers.

Check Reviews and Local Reputation

What contractors say during a presentation might sound good, but online comments often show something different. Google ratings can hint at reliability, but the full story usually comes from longer remarks left by past clients. Feedback on the Better Business Bureau site adds context, especially when complaints appear more than once. Platforms such as GuildQuality matter because they collect detailed experiences over time. Spotting repeated praise or frustration helps separate steady performance from occasional luck.

Pay attention to how the company handles negative reviews as much as the positive ones. A contractor that responds professionally to criticism and works to resolve issues is a much safer choice than one with a perfect score but very few reviews.

Get a Written Estimate and Ask the Right Questions

A solid contractor gives a clear paper breakdown, including what tasks they’ll do, which supplies go in, how long it takes, plus how they’ll handle the mess afterwards. Avoid any company that pressures you to sign on the spot or provides only a verbal quote.

• Are you licensed and insured in Maryland?
• What manufacturer certifications do you hold?
• What warranty coverage will I receive on materials and workmanship?
• How do you handle the cleanup and disposal of old materials?
• Who will be on-site managing the project?

Choose a Roofing Contractor in Maryland You Can Trust

American Custom Contractors has been serving Maryland homeowners since 1972. As an Owens Corning Platinum Preferred Contractor, GAF Certified Plus contractor, and CertainTeed ShingleMaster Preferred contractor, we are among the most credentialed residential roofing contractors in the region. We are fully licensed in Maryland, bonded, and insured, and we back every project with strong manufacturer warranty coverage.

If you are ready to get started or just have questions, contact us today for a free estimate. We serve homeowners throughout Maryland, including the greater Rockville area and surrounding communities.