Replacing your roof is one of the biggest investments you’ll make as a homeowner. Understanding each step of the roofing process helps you feel confident, informed, and prepared. At Horizon Roofing & Exteriors, we follow a detailed and transparent roofing process to ensure your project is done right—from the first inspection to the final walkthrough.
1. Inspection & Estimate: The Starting Point of Your Roofing Project
Initial Roof Assessment
- Comprehensive visual inspection of shingles, flashing, vents, and gutters
- Damage detection for leaks, missing shingles, soft spots, or storm damage
- Structural evaluation to check the overall condition and lifespan of your roof
Detailed Roofing Estimate
- Scope of work (repairs, full replacement, decking needs, ventilation updates)
- Material options and pricing
- Labor breakdown
- Permit & disposal fees
- Timeline & payment schedule
- Warranty details
2. Choosing the Right Roofing Materials
Popular Roofing Options in St. Louis
- Asphalt Shingles – Affordable & widely used
- Architectural Shingles – Higher durability & curb appeal
- Metal Roofing – Long-lasting & energy-efficient
- Tile or Slate (Luxury Roofing) – Beautiful but heavier & costlier
Factors to Consider
- Budget
- Weather durability (St. Louis storms, winds, hail)
- Aesthetic style
- Energy efficiency
- Local building codes
3. Removing the Old Roof: Safe & Systematic
Safe Removal
- Manual or mechanical removal depending on roof size
- Safety gear, tarps, and debris protection
- Nail magnets to collect hidden nails
Eco-Friendly Disposal
- Proper disposal according to Missouri regulations
- Recycling options when available (asphalt shingles, metal)
4. Roof Deck Inspection & Repairs
- Inspecting the decking for rot, water damage, or soft spots
- Replacing damaged plywood
- Reinforcing weak areas
5. Installing the New Roof: Precision & Craftsmanship
Preparation
- Clean roof surface
- Install waterproof underlayment
- Add drip edge and starter shingles
Shingle Installation
- Installed per manufacturer guidelines
- Proper overlap and sealing
- Ridge caps, vents, and flashing installed professionally
Flashing & Sealant
- Around chimneys
- Vents
- Skylights
- Wall intersections
6. Final Inspection & Warranty Protection
Final Inspection Includes:
- Shingle alignment
- Flashing accuracy
- Ventilation
- Cleanliness of jobsite
- Proper sealing
- Compliance with building codes
Warranty
- Material warranty
- Workmanship warranty from Horizon Roofing & Exteriors
FAQ – Residential Roofing Process
Most roof replacements in St. Louis and St. Charles County take 1–2 days, depending on roof size, pitch, materials, and weather. Larger or more complex roofs may take up to 3 days, but your contractor will give you a clear timeline before starting.
You may only need repairs if the damage is minor. A full replacement is recommended when you have:
- Widespread shingle damage
- Leaks in multiple areas
- Sagging roof decking
- An old roof near the end of its lifespan (15–25 years for shingles)
A professional inspection from Horizon Roofing & Exteriors helps determine the best option.
Homeowners should:
- Move vehicles out of the driveway
- Remove patio furniture or fragile items
- Secure wall hangings inside (vibration may occur)
- Keep pets and kids away from the work area
Your roofing team will handle all major safety precautions.
Most roofs in St. Louis & St. Charles counties cost between $6,500 and $18,000, depending on the:
- Roofing material
- Size & complexity
- Labour requirements
- Decking repairs
- Underlayment, flashing, and ventilation updates
Horizon Roofing & Exteriors provides transparent, written estimates with no hidden fees.
A properly installed roof lasts:
- Architectural shingles: 25–35 years
- Metal roofing: 40–70 years
- Luxury shingles (impact-resistant): 30–50 years
Routine maintenance and annual inspections extend its lifespan.
Insurance may cover roof replacement if the damage is caused by:
- Hail
- Wind
- Storm impact
- Other sudden events
It typically does not cover aging, wear-and-tear, or neglect. Horizon Roofing & Exteriors can help you document storm damage and work with adjusters.
Trust Horizon Roofing & Exteriors for a Smooth, Stress-Free Roofing Experience
A roof replacement doesn’t have to feel overwhelming. By understanding the full residential roofing process, you can make informed decisions and feel confident about your investment.
At Horizon Roofing & Exteriors, we’ve served homeowners across St. Louis, St. Charles County, Wentzville, O’Fallon, St. Peters, and surrounding areas with trusted roofing services built on quality, transparency, and professionalism.
✅ Need a roof inspection?
✅ Want honest pricing and expert guidance?
Contact Horizon Roofing & Exteriors today for a free estimate and reliable roofing service you can trust.
Brian Donohue
Brian Donohue is the owner of Horizon Roofing & Exteriors, the leading roofing company in St. Peters, Missouri, dedicated to delivering quality roofing solutions. With a strong background in project management, sales, and customer service, Brian has built a reputation for reliability and excellence in the roofing and construction industry.