Hiring a roofer is a major decision—but unfortunately, not all contractors deliver on their promises. Whether it’s a rushed job, lack of training, or corner-cutting to save costs, a poorly installed roof can lead to serious consequences for your home or business. At KangaRoof, we often get called to fix mistakes made by other contractors across Coppell, TX—and we’ve seen it all. If you suspect something’s wrong with your roof, here are five red flags that may indicate your roofer didn’t do the job right.
1. Uneven or Misaligned Shingles
What to look for:
- Wavy shingle lines
- Shingles that don’t overlap correctly
- Exposed nail heads
- Tabs that don’t lie flat against the roof
Why it matters:
Shingles must be installed in straight lines and precisely aligned for both aesthetics and weatherproofing. Improper spacing or poor alignment can create gaps where water seeps in. This seemingly small flaw often results in leaks, wind damage, and premature wear.
The fix:
A certified roofing contractor will ensure correct installation patterns, proper nailing, and accurate spacing. At KangaRoof, our crews are trained to follow manufacturer guidelines for every shingle system we install.
2. Inadequate Flashing Around Penetrations
What to look for:
- Water stains near chimneys, skylights, or vent pipes
- Loose or rusted metal flashing
- Visible caulking instead of custom-fit metal
Why it matters:
Flashing is critical to preventing leaks at joints and intersections where the roof meets vertical surfaces. If your roofer cut corners with flashing—using low-quality materials, poor workmanship, or caulk-only solutions—you’re at risk for serious water damage.
The fix:
Flashing should be properly bent, fitted, and fastened with waterproof underlayment beneath it. Resealing with flashing tape or replacing with custom-fit metal often solves the problem.
3. Poor Attic Ventilation
What to look for:
- Overheating in the attic
- Moisture buildup or mold
- Warped decking or insulation damage
- No visible intake or exhaust vents
Why it matters:
Ventilation is vital to your roof’s health. Without proper airflow, heat and moisture get trapped in your attic, accelerating shingle deterioration, damaging insulation, and promoting mold growth.
The fix:
A good roofer will design a balanced ventilation system using ridge vents, soffit vents, and possibly attic fans. At KangaRoof, every installation includes ventilation analysis and upgrades when needed.
4. Leaks Shortly After Installation
What to look for:
- Water stains on ceilings or walls within weeks or months of a new roof
- Dripping during rain, especially near chimneys or valleys
- Bubbling or discoloration in paint or drywall
Why it matters:
A new roof should keep your home watertight for years. If it leaks shortly after installation, it’s a sign that something was missed—flashing wasn’t installed correctly, seams weren’t sealed, or materials were rushed or misapplied.
The fix:
Leaks require immediate attention. Certified roofers can inspect and identify the problem area, reseal or replace damaged sections, and document findings for warranty or insurance claims.
5. No Documentation or Warranty
What to look for:
- No written contract or proposal before the job
- No proof of manufacturer warranty
- No final inspection or post-installation report
Why it matters:
A reliable roofer should provide detailed documentation of the project, including a written scope of work, warranty information, materials list, and final inspection results. Without it, you may have no recourse if problems arise.
The fix:
KangaRoof issues full documentation for every job, including photo reports, material specs, and applicable warranties. We stand by our work, and we want you to feel protected long after the crew leaves.
Bonus: Gut Feeling Something’s Off?
Sometimes, homeowners don’t have the technical expertise to diagnose the problem, but they know something doesn’t seem right—loose materials, messy job sites, poor communication, or vague answers from the contractor. If that’s you, don’t hesitate to call in a second opinion.
What Sets Us Apart
As an OC Preferred and Emerald Premium Contractor, KangaRoof is held to the highest installation and service standards in the industry. We don’t cut corners, and we never treat your home like “just another job.” From detailed inspections to transparent contracts and meticulous installation, we deliver the professionalism you deserve.
Final Thoughts
A new roof should bring confidence, not concern. If you’re noticing signs of poor workmanship or something just doesn’t feel right, it’s important to act quickly. In Coppell, TX, KangaRoof offers honest inspections, repairs, and full replacements done the right way—no shortcuts, no excuses.
Read also our blog: The Importance of Scheduling Regular Roof Inspections