How to Replace a Roof | Your Ultimate Re-Roofing Guide

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  • How to Replace a Roof | Your Ultimate Re-Roofing Guide

    Fri May 12

    Author: Rener Vieira

    Do you need to replace your roof? It is news no homeowner likes receiving, but the roof replacement process doesn’t have to be stressful and overwhelming. In fact, replacing your roof can have many short and long-term benefits for your budget, lifestyle, and safety. From determining if you need a replacement and estimating costs to choosing a contractor and planning the job, Landmark Roofing and Siding has compiled a guide with everything you need to know about having your roof replaced.

    What Is a Roof Replacement?

    A roof replacement involves removing an old existing roof and installing a new one. However, it doesn’t mean that just the top layer is removed – everything from the underlayment to the flashing is taken off. It is a major home renovation project that requires careful planning and execution for safe and durable results. The roof replacement process can take anywhere from a couple of days to a full week, depending on the square footage size of your roof and your chosen material.

    Re-Roof Vs. Roof Replacement

    When it comes to replacing your roof, there is also another route. This is known as a “re-roof” and involves layering new roofing material on top of the existing roof. This is a faster, cheaper roof replacement option and allows you to achieve the look and feel of a new roof, without the extra time and effort. However, you will need to keep in mind that re-roofs are only suitable for shingle roofs, and if your roof has incurred extensive damage, it may not be a suitable option. We recommend leaving it up to a professional roofing contractor to advise on whether or not you should undergo a re-roof or a full roof replacement.

    Why You Might Need to Replace Your Roof

    Your roof is the most important structural element of your home. It protects the interior of your home from rain, keeps you warm in winter and cool in summer, and keeps the entirety of your home’s structure standing year after year. While it is one of the most expensive parts of your home to have repaired or replaced, a roof replacement is often a necessary investment that provides homeowners with much-needed peace of mind. Here at Landmark Roofing and Siding, we have years of experience educating homeowners on the signs of needing a roof replacement. This typically includes:


    As with all things, roofs have a lifespan. Most residential asphalt shingle roofs last between 15 and 30 years. If your roof is approaching or has exceeded its lifespan, it may be time for a replacement.


    Various factors may cause roof damage, such as high winds, heavy rain or hail, fallen tree limbs, or even regular wear and tear. Your roof may need a replacement if the damage is extensive or covers a significant portion.


    Roof leaks can damage your home's structure. If a leak is irreparable, it may be time to replace the roof.

    Energy Efficiency

    If your energy bills are high or your home feels drafty, replacing your roof with an energy-efficient option may be worth the investment.

    Increase Property Value

    A new roof adds value to your home and attracts potential buyers if you plan to sell soon.

    Warning Signs You Need a New Roof

    Although a roof’s lifespan varies based on several factors, such as weather and maintenance, every homeowner will eventually need a roof replacement. When that time comes, recognizing the warning signs helps homeowners avoid costly damage and maintain the structural integrity of their homes. Some warning signs that indicate you might need a new roof include:

    Curling, Cracking, or Missing Shingles

    Check for missing, cracked, curled, or warped shingles, which are often an indicator that the shingles are at the end of their useful life.

    Water Damage

    If you notice water damage on your walls or ceilings, or leaks inside your home, you may need a new roof.

    Sagging Roof

    A sagging roof may indicate structural damage. You will need to call a professional roofer immediately to assess the situation.

    Loose Granules

    Finding granules in your gutters means your shingles are breaking down and need replacement.

    High Energy Bills

    If you notice increased energy bills, your roof may not be insulating your home properly. A roof replacement may save you money on utility bills in the long run.

    The Process of Replacing a Roof

    If you have gone through the inspection process and determined you may need a roof replacement or a professional roofing contractor has advised you to replace your roof, you may be wondering what the process entails? Replacing a roof may seem daunting, but proper knowledge and preparation makes for a smooth and stress-free process. Here is a step-by-step guide to replacing a roof:

     A roofing contractor will inspect your roof, determine the extent of the damage, and assess whether the crew should repair or replace the roof. At Landmark Roofing and Siding, Inc., we come to your home and create a bid on the spot with the inspection, assessment, and proposal, so you can make an informed decision.

     If you accept the proposal, your roofing contractor will prepare your home by protecting windows and doors, removing satellite dishes, and trimming back overhanging trees.

    Your roofers will remove your existing roofing material, placing all debris in a dumpster and recycling what can be recycled. They also inspect the roof deck for water damage and make repairs if necessary.

    After removing the old material, and repairing and cleaning the roof deck, your roofers will now install new flashing and vent boots to prevent water from getting under your new material.

    Next, new shingles are installed in rows, starting from the bottom and working your way up the roof. Shingles are attached using nails or staples, depending on the type used. If you have metal, tile, or any other type of roof, the material will be fitted and fastened down.

    Job site cleanup and disposal of construction debris and any old roofing material is a critical part of the replacement process.

    Your roofing contractors will perform a final inspection to ensure everything meets your expectations and confirms that your new roof meets all local building codes and regulations.

    The Cost of Replacing a Roof

    One of the biggest reasons why most homeowners are apprehensive about undergoing a roof replacement is the cost. Most people are hesitant to make such a big investment, especially when they don’t know ‌what factors into the cost or what roofing system is the right choice for them.

    The cost of installing a new roof varies greatly depending on several factors, such as the size of your roof, the materials used, the complexity of the job, and your location. However, keep in mind the final price depends on a variety of factors such as the type of roofing system you choose, whether you opt for additional features like gutters or skylights, and the amount of repair work needed before the new installation.

    Here is a quick rundown of all the elements that come into play regarding the cost of your roof replacement:

    New Roofing Material

    Simply put, different roofing materials cost different amounts. For example, asphalt shingle roofs roofs typically cost much less than metal or Duro-Last Single Ply roofing. On top of that, the cost will also differ depending on the specific brand you choose. When looking for roofing materials, be sure to also factor in durability as that will come into play regarding its longevity, thus, your long-term investment.

    Your Old Roofing System

    Since your roofing contractors will be removing your old roofing system, its material type and complexity factor into the price. If it is going to be more burdensome to remove, it may increase the cost of your roof replacement.


    Since your roofing contractors will be removing your old roofing system, its material type and complexity factor into the price. If it is going to be more burdensome to remove, it may increase the cost of your roof replacement.

    Your Roof Size

    The size of your home/roof is one the biggest determinants of how much your replacement will cost. If your home is anywhere between 1,000 - 2,000 square feet, your roof replacement will likely be ‌much more expensive than if your home is more than 2,500 square feet.

    Delays or Setbacks

    While you want your roof replacement to go as seamlessly as possible, big projects such as this are often subject to delays or setbacks. This could be anything from a labor shortage to a material or weather delay. These unforeseen situations can have the potential to increase the cost of your roof replacement.

    Existing Roof Structure

    The structure of your roof can also impact your project's cost. If your roof is difficult for contractors to access, or you have raised elements such as chimneys, skylights, or extreme sloping, your roofing contractor might increase the overall cost.

    Why Quality Roofing Matters

    Replacing your roof is a significant investment, and you want to ensure the job is done right. While trying to save on costs and hiring a cheap roofing contractor may seem tempting, your roof directly impacts the safety and protection of your home. If you do not choose an experienced roofing contractor that is going to get the job done right, you could end up with a plethora of problems down the line. The number one way to guarantee that your roof replacement goes smoothly is to do your research and ensure that you have the right roofing contractor by your side.

    At Landmark Roofing and Siding, Inc., we believe in doing things the right way, even when no one is looking. While some contractors send a bill for the bare minimum, we take the time to evaluate each client’s individual needs and create a personalized plan that meets their specific property requirements. We value transparency, so you always know exactly what your roofing project will cost and how much you will need to put as a downpayment.

    A roof’s material and installation make a significant difference in its lifespan, so we use the highest quality materials and follow the latest industry standards and practices. Our skilled team of roofers have years of experience, and you can trust our roof replacement knowledge and expertise. Best of all, we offer complimentary roofing consultations to ensure you have all the information you need to make an educated decision regarding if working with us is right for you.

    Roof Replacement in Redmond, WA

    Do not trust just any roofing contractor in Redmond with the job of replacing your roof. Choose a premier roofing company like Landmark Roofing and Siding, Inc. that values customer satisfaction and uses only the best materials and practices. To learn more about how we can help you with your roofing needs, call us at 1-855-413-3024 or request a free estimate online.

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