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Top 7 Causes of Roof Leaks: How to Ensure Long-Lasting Repairs

July , 2023 | 10 min. read

By Anthony Marzbanian

RoofCrafters roofer performing a repair

Have you been trying to catch raindrops in pots and pans like you're in a science experiment gone wrong?

Are you ready to say goodbye to water stains on your ceiling and hello to a leak-free roof?

Roof leaks are the bane of homeownership, making us feel like amateur plumbers and ruining our weekends. But not only are they frustrating, but they can also be a mystery. Is it the roof? Or is it something else? We've heard of cases where people replaced their entire roof, only to find out that it was their siding causing the leak. Talk about a nightmare.

man drinking coffee inside with an umbrella, pots and pans catching roof leaks

But don't worry, RoofCrafters is here to help, with over 30 years of experience. We’ve done so by helping homeowners to determine if the leak is even caused by their roof. Just when we think… “We've seen it all!” Well, now we want to share our expertise with you so you can make a well-informed decision about your roof leak.

In this article, we'll cover:

  • The most frequent causes of roof leaks
  • Is a roof leak repairable?
  • How long do roof leak repairs last
  • The costs to repair a roof leak
  • Do roof leak repairs come with a warranty

And last but not least, we’re going to provide you with 7 qualities you should be looking for in a roof leak repair contractor. And by the end, hopefully, you’ll have all the important information you need to make a well-informed decision. Sound good?

Let's dive in and learn what causes roof leaks in the first place!

Top 7 Causes of Roof Leaks

 

a man sitting at his kitchen table soaking wet reading a paper and drinking coffee while his roof leaks

Roof leaks can be caused by a variety of factors, including:

  1. Damage to the roofing material, such as missing shingles or holes in the roof
  2. Flashing failures, which are caused by damage to the flashing or improper installation
  3. Clogged or damaged gutters and downspouts can cause water to pool on the roof
  4. Debris build-up on the roof, such as leaves and twigs can prevent water from draining properly
  5. Ice dams are caused when snow on the roof melts and then refreezes at the edge of the roof, forming a dam that prevents water from draining properly.
  6. Poor roof ventilation can cause the roof deck to become saturated with moisture and eventually leak
  7. Poor quality roofing or improper installation can lead to premature roof failure.

roofer checking the flashing on a wall

It's important to have a professional inspect your roof regularly. Some companies offer maintenance plans to keep your roof healthy. By doing so, they can identify any potential issues and make necessary repairs before they become major problems.

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Is a Roof Leak Repairable?

 

roofing crew doing flat roof repairs

Often, a roof leak is repairable, depending on the extent of the damage and the age of the roof. If the leak is small the roof may only leak sometimes. It will only affect a small area of the roof. It may be possible to patch the damaged area. But, if the leak is larger and affects a larger area, or if the roof is old and in poor condition, it may be necessary to repair or replace the entire roof.

roof inspection in progress

It's important to have a professional assess the damage and recommend the appropriate course of action. In some cases, it may be more cost-effective to replace the roof rather than attempt to repair it, especially if the roof is old or has significant damage.

How Long Will a Roof Leak Repair Last?

 

The longevity of a roof leak repair will depend on the extent of the damage and the quality of the repair. If the repair is done by a professional, using high-quality materials, it should last for several years. But, if the repair is only a temporary fix, or if the underlying problem is not addressed, the leak may reoccur.

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How Much Does a Roof Leak Cost to Repair?

 

The cost of repairing a roof leak will depend on the extent of the damage and the type of repair. A small, isolated leak may only cost a few hundred dollars to repair. While a larger leak or one that affects a larger area of the roof may cost several thousand dollars to repair.

roofer repairing a 3-tab shingle roof

If the damage is severe. Or if the roof is old and in poor condition. It may be more cost-effective to replace the entire roof rather than attempting to repair it. In this case, the cost of the repair will depend on the size of the roof and the type of roofing material being used.

roofer tearing off a roof with rotten plywood decking

It's always a good idea to get estimates from 2 to 3 roofers that do repairs before deciding on a repair or replacement plan. This will help you get a sense of the typical cost for the work and allow you to make an informed decision.

Will a Roof Leak Repair Come With a Warranty?

 

A roof leak repair may come with a warranty. But it will depend on the specific terms of the repair contract and the company performing the work. Some roofing contractors may offer a limited warranty on their repairs, while others may not offer any warranty at all.

james videographer

It's a good idea to ask about the warranty before having any work done, so you know what to expect if the repair fails or the leak reoccurs. Some contractors may offer a longer warranty for more expensive repairs or roof replacements. While others may not offer a warranty on repairs at all.

Are you covered after the work is done

It's also a good idea to carefully review the terms of any warranty. This is to understand what is and is not protected. This will help you know what to expect if you need to use the warranty in the future.

Should I Repair My Leaky Roof or Replace the Roof?

 

storm damage roof from severe wind damage

Deciding whether to repair or replace your roof will depend on the age of the roof, the extent of the damage, and the condition of the roof. If the roof is relatively new and the damage is minor, a repair may be enough. But, if the roof is old and in poor condition, or if the damage is extensive, it may be more cost-effective to replace the entire roof.

Here are a few things to consider when deciding whether to repair or replace your roof:

  1. Age of the roof: If the roof is approaching the end of its lifespan. (typically 20-25 years for asphalt shingles) It may be more cost-effective to replace the roof rather than make repairs.
  2. The extent of the damage: If the damage is limited to a small area of the roof, a repair may be enough. But, if the damage is widespread or if the roof is in poor condition, a replacement may be necessary.
  3. The condition of the roof: If the roof is in generally good condition but has a few isolated problem areas, a repair may be enough. But, if the roof is in poor condition, a replacement may be the best option.

It's always a good idea to get estimates from 2 to 3 local repair contractors before deciding on a repair or replacement plan. This will help you get a sense of the typical cost for the work and allow you to make an informed decision. If you're not sure take the quiz below.

Image call to action, take the repair or replace quiz

7 Qualities to Look for in a Roof Leak Repair Contractor

 

Factors to consider when looking for a roof leak repair contractor. It's important to choose a professional who has experience and a proven track record of quality work. Here are seven qualities to consider:

  1. License and Insurance: Make sure the contractor has a license and insurance. This will protect you if something goes wrong during the repair process.
  2. References and Social Proof: Ask for references from previous customers. Then take the time to follow up and ask about their experiences with the contractor.
  3. Attention to Detail: Look for a contractor who is detail-oriented. They will take the time to properly diagnose the problem and recommend the best course of action.
  4. Clear Communication: Choose a contractor who is responsive and communicates clearly and effectively. This will help ensure that you are on the same page throughout the repair process.
  5. Warranty: Ask about the warranty offered on the repair work, and be sure to understand the terms of the warranty.
  6. Likable: You want to work with someone you like. This will make the job easier for both parties
  7. Transparent: Find a contractor that will show you everything and go over it with you so that you fully understand

Taking the time to do your research. Choose a reputable repair contractor. By doing so you can help ensure that your roof leak repair is right and will last for years to come.

commercial roofing company tearing off a flat roof with the text teamwork on the image

If you want to save yourself time and you live in one of our many service areas. RoofCrafters has helped thousands of homeowners get rid of pesky roof leaks. If it can be repaired, we’ll guarantee it. We’ll also provide you with a written warranty for the work we perform. You can trust our professional estimators will provide you with honest feedback if your roof is too old or too damaged to perform a repair that’ll last. 

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Anthony Marzbanian

My name is Anthony, and I am the lead estimator of RoofCrafters’ Georgia/South Carolina division. The roof is the most important part of a structure, and people count on that to protect themselves and their families. That is one of the many reasons why I love my job and enjoy coming to work every day. The continuous training, honesty, and providing the customer with the Roofcrafters experience is what makes me the best in the business.