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How To Repair A Roof Leak?Residential Or Commercial

how to repair a roof leak? Emergency Best roof repair sealants? roof leaks in heavy rain
Process of a roof leak repair in Philadelphia, PA the roof was beyond repair there for a new roof installation was necessary.

How to Repair a Roof Leak: A Step-by-Step Guide

As a licensed and insured roofing contractor with extensive experience, I’ve encountered countless roof leaks and performed repairs under all sorts of conditions. At Last Stop Roofing & Home Repair LLC, we provide free on-site roofing estimates to help homeowners and business owners address their roofing concerns. If you need assistance, don't hesitate to call us at 215-839-2509.

Sometimes, a roof has simply reached the end of its lifespan and can’t be permanently fixed, making a new installation the best solution. However, if you’re dealing with a minor leak and need to buy some time before replacing your roof, this guide will help you identify and repair the issue.

Step 1: Identifying the Leak

  1. Inspect the Attic:

  • Begin by inspecting your attic for signs of water damage. Look for water stains, mold, or damp insulation.

  • Measure the distance from the leak to the nearest reference point, such as a wall or chimney. Note this distance.

  1. Measure the Distance on the Roof:

  • Safely climb onto your roof with the necessary safety gear.

  • Measure the same distance from the reference point to locate the corresponding area on the roof.

Step 2: Finding the Source of the Leak

Once you’ve identified the general area, closely inspect the following common problem areas:

  • Damaged Shingles: Look for cracked, curled, or missing shingles.

  • Flashing: Check around chimneys, vents, and skylights for gaps or cracks.

  • Roof Vents: Ensure vents are properly sealed and free from cracks.

Step 3: Assessing the Damage

After identifying the possible source of the leak, determine whether the roof can be repaired or if it requires replacement. If the damage is extensive and the roof is old, it might be time for a new roof. A new installation will save you from recurring issues and additional headaches.

Step 4: Temporary Repairs

If your roof can be temporarily fixed, follow these steps:

  1. Repairing Damaged Shingles:

  • Carefully lift the surrounding shingles and remove nails from the damaged shingle.

  • Slide a new shingle into place and secure it with roofing nails.

  • Apply roofing cement to the nail heads and press down the surrounding shingles.

  1. Fixing Flashing:

  • Seal small gaps with roofing cement or replace damaged flashing.

  • Secure the new flashing with roofing nails and seal the edges with roofing cement.

  1. Sealing Cracks and Holes:

  • Apply roofing cement directly to minor cracks or holes.

  • For larger holes, place a patch of tar paper or roofing felt under a new shingle.

  1. Checking Roof Vents:

  • Ensure roof vents are properly sealed by applying caulk around their edges.

Step 5: Final Inspection

After completing the repairs, inspect the roof again to ensure all potential leak sources are addressed. Check the attic after the next rain to confirm the leak is fixed.

Commercial and Residential Roofing Solutions

At Last Stop Roofing & Home Repair LLC, we specialize in both commercial and residential roofing. Our services include:

  • Shingle Roofs: We handle both steep and low slope shingle roofs.

  • Flat Roofs: We are experienced in installing and repairing flat roofs, especially on row homes in Philadelphia and the surrounding suburbs.

  • Commercial Roofing: Our team is equipped to manage large-scale commercial roofing projects, ensuring durability and quality.

Why Choose Last Stop Roofing & Home Repair LLC?

  1. Experience and Expertise: With years of experience and training from manufacturers, we have the knowledge and skills to handle any roofing challenge.

  2. Quality Service: We take pride in providing top-notch service, whether it's a minor repair or a complete roof replacement we signed up to be roofers.

  3. Licensed and Insured: Our company is fully licensed and insured, giving you peace of mind knowing that your property is in safe hands.

  4. Free On-Site Estimates: We offer free on-site estimates to evaluate your roofing needs and provide a detailed plan of action. Call us at 215-839-2509 to schedule your estimate today.


While these steps can help you address minor roof leaks and buy you time before a full roof replacement, remember that some roofs cannot be permanently repaired once they’ve reached the end of their lifespan. As a seasoned roofing contractor in Philadelphia and the surrounding areas, I can attest that sometimes starting fresh with a new roof is the best way to avoid ongoing issues.

Regular maintenance and timely repairs will help keep your roof in good condition and protect your home from water damage. If you’re unsure about the extent of the damage or the best course of action, don’t hesitate to contact a professional roofer. At Last Stop Roofing & Home Repair LLC, we’re here to help with all your roofing needs, from minor repairs to complete roof replacements. Call us today at 215-839-2509 for your free on-site estimate and let us help you protect your investment.

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