What to Expect During Asphalt Shingle Roof Installation: A Step-by-Step Guide for Homeowners

 

If you’re facing a roof replacement, chances are you have a lot of questions—and maybe a few concerns. How long will it take? What exactly happens during the process? Will your home be protected the entire time?

At A-1 Contractors in Great Falls, MT, we believe replacing your asphalt shingle roof shouldn’t be overwhelming. With the right contractor and a clear plan in place, the process can be smooth, efficient, and even empowering. This guide walks you through what asphalt shingle roof installation looks like from start to finish—so you know exactly what to expect and how we help keep your home protected every step of the way.

Step 1: Roof Inspection and Estimate

Every successful roof replacement begins with a thorough, honest inspection. We’ll come to your property to assess the condition of your existing roof, identify any underlying issues (like rot or water damage), and evaluate things like slope, ventilation, and attic insulation. This inspection helps us build a customized roofing plan—and gives you a detailed, transparent estimate you can trust.

We’ll also walk you through material options, roof styles, and colors so you can choose shingles that match your home’s aesthetic and climate needs.

Step 2: Scheduling and Preparation

Once you’ve approved the estimate, we’ll schedule your installation at a time that works for you. In the days leading up to the project, we’ll provide prep instructions—like moving vehicles away from the work zone or removing items from exterior walls to prevent vibration-related damage.

Our crew will arrive on schedule and begin prepping the site by:

• Protecting landscaping and outdoor features 
• Setting up safety equipment and debris catch systems 
• Delivering materials to the site 

We treat your property with care from day one, minimizing disruption while maximizing safety.

 

 

Step 3: Old Roof Removal

Before new shingles go on, the old ones must come off. Our team will remove the existing roofing material down to the decking to expose any hidden damage. This is a critical step—skipping it or simply “roofing over” old shingles can trap moisture and cause long-term issues.

If we find any damaged decking or underlayment, we’ll replace it right away to create a solid foundation for your new roof.

Step 4: Installation of the New Roofing System

This is where the transformation begins. Your new asphalt shingle roof is installed layer by layer to ensure durability, performance, and protection. The process includes:

• Installing ice and water shield in vulnerable areas 
• Applying roofing felt or synthetic underlayment for added moisture protection 
• Securing drip edge along the roof’s perimeter to direct water away 
• Installing starter shingles to create a clean edge 
• Laying architectural shingles in a staggered pattern for strength and visual appeal 
• Adding ridge vents or other ventilation systems to keep airflow balanced 
• Sealing the roof with ridge caps for a clean, finished look 

Step 5: Final Cleanup and Inspection

Once installation is complete, we don’t just pack up and leave. Our team conducts a full cleanup, including magnetic sweeps to pick up stray nails and debris. Then, we perform a thorough final inspection to ensure everything is installed to code and meets our high standards of quality.

We’ll walk you through the finished project, answer your questions, and review warranty details so you feel confident in your investment.

 

 

What You’ll Love About Working With A-1 Contractors

When you choose A-1 Contractors in Great Falls, MT, you’re not just hiring a roofing crew—you’re getting a partner who puts your comfort, safety, and satisfaction first. Here’s what sets us apart:

• Clear communication from start to finish 
• Experienced local crews who respect your property 
• Top-tier materials designed for Montana’s extreme weather 
• Fast, efficient project timelines without cutting corners 
• Transparent pricing and no surprise fees 
• A dedication to craftsmanship you can see and feel 

Ready to Replace Your Roof? Let’s Make It Easy

Roof replacement doesn’t have to be intimidating—not when you understand the process and have the right team on your side. With expert planning, top-quality materials, and a crew that treats your home like their own, your asphalt shingle roof installation can be simple, stress-free, and seamless.

If your roof is showing signs of age or damage, don’t wait for bigger problems to surface.

Contact A-1 Contractors in Great Falls, MT today to schedule your free estimate and get started on a roof you can trust for years to come.