You know your roof is on its last legs—maybe you’ve spotted curling shingles, a few leaks, or that one neighbor who keeps giving you the look because your roof is bringing down the block’s curb appeal. So, you’ve decided it’s time for a roof replacement. Great! But now comes the next big question: how long does it take to replace a roof?
The good news? A roof replacement doesn’t have to drag on for weeks. In fact, most homes can get a brand-new roof in just one to two days. The not-so-good news? Weather, roof size, and unexpected repairs can throw a wrench in the timeline. If you’re in Maryland, where we get everything from scorching summers to unexpected snow, timing can be tricky.
At MARS Restoration, we’ve replaced enough roofs to know that homeowners want two things: speed and quality. In this guide, we’ll break down what affects the timeline, what to expect from start to finish, and how to prepare for the smoothest roof replacement possible.
Thinking about replacing your roof? Give MARS Restoration a call at 240-319-7311 for a professional inspection today!
What Affects How Long a Roof Replacement Takes?
Most standard residential roof replacements take one to two days, but several factors can extend or shorten that timeline. Here’s what plays a role.
1. Roof Size and Complexity
The bigger and more complicated the roof, the longer the job will take. A simple, single-story home? One day, easy. A multi-story house with steep slopes and dormers? Add an extra day or two.
- Small homes (1,000-1,500 sq. ft.): 1 day
- Medium-sized homes (1,500-3,000 sq. ft.): 1-2 days
- Large homes (3,000+ sq. ft.): 2+ days
2. Roofing Material Selection
Some materials are quick and easy, while others take time and precision.
- Asphalt Shingles: The fastest option—usually 1-2 days
- Metal Roofing: Requires extra measuring and fastening—2-3 days
- Slate or Cedar Shake: More detailed work—3-5 days
- Flat Roofs (TPO, EPDM, PVC): Varies based on size—2-4 days
If speed is your priority, asphalt shingles are the way to go. But if you want a lifetime investment, metal or slate might be worth the wait.
3. Maryland Weather
Let’s talk about the one thing none of us can control—Maryland’s unpredictable weather.
- Ideal conditions: 50-80°F with clear skies = fast installation
- Delays: Rain, high winds, and snow can pause work for safety reasons
- Extreme heat: Slows down workers, leading to longer breaks and a slightly extended timeline
At MARS Restoration, we track the forecast to schedule jobs when the weather is on our side.
4. Hidden Repairs
Here’s a common scenario: We tear off the old roof and find unexpected problems.
- Rotten or water-damaged decking
- Structural issues from previous poor installations
- Mold or mildew hiding underneath
These fixes add extra time, but skipping them would shorten your roof’s lifespan. We always perform a thorough inspection before starting, so there are fewer surprises.
What to Expect During a Roof Replacement
If this is your first time replacing a roof, here’s a breakdown of what actually happens.
Step 1: Pre-Installation Setup (1-2 Days Before)
Before we even touch your roof, we:
- Deliver materials to your home
- Set up tarps and protective coverings to keep your yard clean
- Move outdoor furniture (if needed)
Step 2: Removing the Old Roof (Half a Day – 1 Day)
This is the loud, messy part. We:
- Strip off shingles, metal, or tiles
- Inspect and repair any underlying issues
- Clean up debris as we go
Step 3: Installing the New Roof (1-2 Days)
Now the fun part—your new roof goes on! This includes:
- Underlayment installation for extra weather protection
- Shingles, metal panels, or other materials
- Flashing around chimneys, vents, and skylights
Step 4: Final Inspection and Cleanup (Same Day as Completion)
We don’t just finish the job and leave you with a mess. Our team:
- Does a full inspection to ensure top-notch installation
- Uses magnets to sweep for stray nails
- Walks you through the finished work and answers any questions
Why Choose MARS Restoration for Your Roof Replacement?
At MARS Restoration, we know that a roof replacement is a big deal, and we make the process as quick and hassle-free as possible. Here’s what makes us stand out:
We use top-quality materials from leading manufacturers like IKO, CertainTeed, and Owens Corning to ensure your roof lasts for decades. Our team is highly experienced, meaning we complete most jobs in just one to two days without cutting corners. Plus, we offer free gutter cleaning with every roof replacement to keep your home in top shape. And if a storm hits? Our 24/7 emergency team is ready to assist with urgent repairs.
We’re not just replacing roofs—we’re helping homeowners protect their biggest investment with confidence.
Ready for a Roof Replacement? Call MARS Restoration Today!
Still wondering, “How long does a roof replacement take?” With the right team, the answer is faster than you think! If you need a roof replacement in Maryland, we’ve got you covered.
Call MARS Restoration at 240-319-7311 or email info@marsrestoration.com to schedule your inspection today! Let’s get your new roof installed quickly, professionally, and stress-free.