Learning how to install roof shingles can save you money—but it’s also a big project that comes with risks. If you’ve ever wondered whether it’s worth shingling a roof yourself or hiring a professional, this guide is for you.
We’ll walk you through the full roof shingle installation guide, compare DIY vs. hiring a contractor, outline costs, tools, safety concerns, and help you decide what’s best for your home.
What Are the Steps to Install Shingles?
If you’re planning a DIY roof shingles install, here’s a basic step-by-step breakdown:
1. Prep and Tear Off Old Shingles
- Remove old shingles (if applicable)
- Inspect the roof deck for damage
- Make necessary repairs
2. Lay Down Underlayment
- Apply felt or synthetic underlayment to the roof deck
- Start from the bottom edge and overlap layers
- Nail underlayment using a hammer or nail gun
3. Install the Starter Strip
- Place starter strip shingles at the edge of the roof
- This layer helps prevent water infiltration
4. Install Shingles in Rows
- Begin with your first row at the roof edge
- Follow manufacturer instructions (GAF, Owens Corning, CertainTeed, etc.)
- Use roofing nails and ensure even spacing
5. Add Flashing Around Openings
- Apply flashing around valleys, chimneys, and roof vents
- Prevents water from seeping into joints
6. Cap the Ridge
- Use ridge cap shingles to finish the peak of the roof
- Nail securely in place
While learning how to install roof shingles, it’s helpful to understand the role of proper ventilation, which you can achieve with a well-executed roof vent installation.
Can I Install New Shingles Over Old Ones?
Yes, in some cases. Here are the conditions:
- Only one existing layer is allowed
- Roof deck must be in good condition
- Local building department must approve it
Keep in mind, overlaying shingles adds weight and might void your warranty.
What Tools & Materials Do I Need to Shingle a Roof?
You’ll need the following:
Tools:
- Roofing nail gun or hammer
- Utility knife or hook blade
- Ladder and roofing harness (OSHA-compliant)
- Chalk line for straight courses
Materials:
- Asphalt shingles (GAF, Owens Corning, IKO, TAMKO, Atlas)
- Felt or synthetic underlayment
- Flashing (valleys, chimneys, vents)
- Starter and ridge cap shingles
- Roofing nails or staples
Check out Lowe’s or Home Depot for budget-friendly DIY roofing kits and material guides.
Is It Safe or Worth DIY Roofing?
DIY roofing can save you a lot—labor often accounts for 60% of total cost. But here’s what to consider:
Pros:
- Cost savings on labor
- Satisfaction from doing it yourself
- Control over material quality
Cons:
- High risk if safety isn’t followed (falls, cuts)
- Mistakes can lead to leaks or future repairs
- Not always covered under warranty if not professionally installed
OSHA recommends using full safety gear, including harnesses, non-slip boots, and stable ladders.
While commercial roof repair can address immediate issues, sometimes a full professional roof installation is the more cost-effective long-term solution.
Do I Need a Permit to Re-Shingle My Roof?
In most areas, yes. Check with your local building department to confirm. Permits are usually required for:
- Full roof replacements
- Structural changes
- Adding new roofing layers
Not getting a permit could delay future home sales or lead to fines.
Cost Comparison: DIY vs. Hiring a Pro
DIY Roof Shingle Install Cost
- Materials: $1.50–$3.50 per sq. ft.
- Tools (if not owned): $200–$500
- Total (for 1,500 sq. ft. roof): $2,500–$6,000
Professional Roof Installation Cost
- Materials: $2.50–$5.00 per sq. ft.
- Labor: $2.50–$4.50 per sq. ft.
- Total: $7,500–$14,000
From maintenance to complete overhauls, commercial roofing services often include expert roof installation for maximum durability and performance.
When to Hire a Pro Instead
You should consider hiring a pro if:
- Your roof has steep pitches or complex features
- There’s visible water damage or mold
- You’re unsure about proper installation techniques
Proper commercial roof installation requires precision—our complete roof installation guide covers best practices for lasting results.
Businesses choosing commercial metal roofing should prioritize proper roof installation techniques to prevent leaks and ensure energy efficiency.
For commercial flat roofing systems, correct roof installation is critical to avoid pooling water and premature wear.
Regular commercial roof maintenance can extend lifespan, but when repairs are no longer enough, consider a new roof installation for a permanent fix.
Final Thoughts
Knowing how to install roof shingles is empowering—especially if you love DIY projects. But it’s not for everyone.
If your roof is steep, worn out, or involves complex flashing, hiring a professional could save you time and future repair costs.
Whether you go the DIY route or call a local contractor, always prioritize safety, permits, and quality materials. The better the install, the longer your shingles will protect your home.
Need help choosing between DIY or pro installation? Reach out today or explore our complete roof installation guide for expert insight.