Roof Leak Repair in Granada Hills, CA

Roof Leak Repair in Granada Hills

Serving Granada Hills

Roof Leak Repair in Granada Hills

Roof leak repair in Granada Hills covers single-family homes from the flatter streets of South Granada Hills up to the hillside lots near O'Melveny Park in North Granada Hills. It includes pitched shingle roofs, flat or low-slope sections over patio additions and garages, and the flashing, valleys, and vents where water usually gets in.

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Copper step flashing patch on asphalt shingle roof — Granada Hills — Roof Replacement Inc

       
 
 
 5.0 
   Top Rated Service 2026
 verified by Trustindex 
 Trustindex verifies that the company has a review score above 4.5, based on reviews collected on Google over the past 12 months, qualifying it to receive the Top Rated Certificate.

The short answer

Roof Replacement Inc provides roof leak repair in Granada Hills for pitched shingle roofs, flat patio additions, and failing flashing across neighborhoods like Knollwood and North Granada Hills. Granada Hills falls under City of Los Angeles jurisdiction, so permits are handled through LADBS when required. Call (213) 364-3979.

More Services

Our Other Roofing Services

Roof ReplacementFull roof replacements and reroofing built to last across greater Los Angeles.Learn more →New RoofsNew roof installation in asphalt shingle, tile, metal and flat systems, with clear pricing up front.Learn more →Roof RepairFast, reliable repairs for leaks, storm damage, flashing, and worn roofing.Learn more →Roof InspectionPhoto-documented inspections that identify leaks, damage and wear, with honest recommendations.Learn more →Shingle RoofingAsphalt shingle installation, replacement and repair, including architectural and Title 24 cool shingle options.Learn more →Tile RoofingConcrete and clay tile installation, repair and underlayment replacement. Keep the tiles, renew the waterproofing.Learn more →Flat RoofingFlat and low-slope roof repair and replacement: torch-down, modified bitumen, TPO and coatings.Learn more →Cool RoofsTitle 24-compliant reflective roofing that cuts cooling costs and beats the SoCal heat.Learn more →Roof CoatingElastomeric and silicone coatings that seal, protect, and extend the life of your existing roof.Learn more →Roof RemovalClean, complete tear-offs that fully strip the old roof and prep the deck for a new one.Learn more →GuttersGutter and downspout installation, repair and replacement, sized for the roof above them and pitched to drain.Learn more →SkylightsSkylight installation, replacement and leak repair on shingle, tile and flat roofs.Learn more →

See our full Roof Leak Repair services ›

‹ All Roofing in Granada Hills

Damaged asphalt shingles with hole, debris, and lifted shingles — Granada Hills — Roof Replacement Inc

Leak Detection Granada Hills

Finding the Source of a Granada Hills Roof Leak

A ceiling stain in a Granada Hills home rarely marks the exact spot where water is entering. On a pitched roof, water can travel along rafters or underlayment before it ever shows up inside. Roof Replacement Inc traces leaks back to their actual source, whether that is a failed valley, a cracked vent boot, deteriorated flashing at a chimney or skylight, or shingles that have simply reached the end of their service life. Call (213) 364-3979 to schedule a diagnosis.

✓Roof valley inspection for channeling and sealant failure
✓Vent boot and pipe flashing condition check
✓Chimney and skylight flashing assessment
✓Shingle surface inspection for cracking, cupping, or granule loss
✓Flat-section membrane check on patio and addition roofs
✓Attic inspection for moisture, staining, and deck condition

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What Will Your Roof Cost?

Answer a few quick questions and get a ballpark price for your Granada Hills roof in about a minute — right here, no obligation.

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Debris-filled roof valley between two asphalt shingle sections — Granada Hills — Roof Replacement Inc

Shingle Roof Leak Repair

Shingle and Valley Leak Repair in Granada Hills

Pitched composition shingle roofs in Granada Hills are susceptible to valley leaks as metal flashing corrodes and sealant dries out over decades. Roof Replacement Inc replaces failed valley flashing, reseats lifted or cracked shingles, and installs synthetic underlayment where the existing layer has degraded, addressing the leak rather than masking it. Call (213) 364-3979 to discuss what your shingle roof needs.

✓Open and closed valley flashing replacement
✓Individual shingle replacement where localized damage exists
✓Synthetic underlayment installation over compromised sections
✓Ridge cap and hip shingle resetting
✓Sealant and flashing tape application at penetrations
✓Debris and granule clearing from valleys before repair

Get a Free Quote Call (213) 364-3979

Tile roof with heavy leaf debris accumulation near pipe penetrations — Granada Hills — Roof Replacement Inc

Flat Roof Leak Repair

Flat and Low-Slope Leak Repair on Granada Hills Additions

Flat or low-slope sections over rear patio additions, garages, or covered entries are a frequent source of repeat ceiling leaks on Granada Hills homes. Roof Replacement Inc works with torch-down modified bitumen and TPO membranes on these sections, repairing blisters, seam failures, and drain blockages that let water pool and eventually penetrate. Call (213) 364-3979 if a flat section on your home keeps leaking in the same spot.

✓Torch-down modified bitumen patch and seam repair
✓TPO membrane repair and seam re-welding
✓Roof coating application on low-slope surfaces
✓Drain and scupper clearing and resetting
✓Parapet flashing inspection and resealing
✓Full flat-section tear-off and re-membrane when repair is not viable

Get a Free Quote Call (213) 364-3979

Why Choose Us

Why Homeowners Choose
Roof Replacement Inc

From tile and shingle to flat and low-slope roofs, we handle every roof type in Granada Hills, one licensed team for replacement, repair, coating, cool roofs, and tear-offs.

Call (213) 364-3979

Hillside and flat-lot leak repair across Granada Hills

Shingle, flat-roof, and valley leak diagnosis

Flashing and roof vent leak repair

City of LA permit coordination through LADBS

Tear-off and re-deck when decay is found beneath a leak

Rusted step flashing at chimney-to-asphalt-shingle roof junction — Granada Hills — Roof Replacement Inc

Vent and Flashing Leaks

Roof Vent and Flashing Leak Repair in Granada Hills

Pipe boots and step flashing wear out on their own schedule, and on an older roof they may never have been replaced. Cracked rubber boots around plumbing vents and lifted step flashing along dormers or additions are frequent culprits behind what looks like a general ceiling leak. Roof Replacement Inc replaces deteriorated boots and resets or replaces flashing rather than relying on caulk alone as a long-term fix. Call (213) 364-3979 to get the right repair done.

✓Pipe boot replacement with new rubber or lead boots
✓Step flashing removal and reinstallation at walls and dormers
✓Counter flashing reseating at chimneys
✓Skylight curb flashing repair or replacement
✓Gutter apron and drip edge correction at eaves
✓Sealant-only repairs avoided where flashing replacement is the correct fix

Get a Free Quote Call (213) 364-3979

Repair Scope and Permits

When a Granada Hills Leak Repair Needs a Full Re-Roof

Some leaks in Granada Hills trace back to a roof that has aged past the point where targeted repairs hold. When Roof Replacement Inc finds widespread shingle failure, rotted decking beneath a flat section, or underlayment that has fully degraded, a full tear-off and replacement is the honest recommendation rather than a patch that will fail again. Granada Hills is part of the City of Los Angeles, so LADBS decides whether a given scope needs a permit, and Roof Replacement Inc handles the permit when one is needed. Call (213) 364-3979 to get a clear picture of what your roof actually needs.

Ready to get started in Granada Hills?

Call for a free, no-pressure estimate.

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Service Area

Granada Hills Service Area

Roof Replacement Inc provides Roof Leak Repair throughout Granada Hills. Service areas include Knollwood, Zelzah, North Granada Hills, South Granada Hills and The Knollwood Country Club area. We also serve nearby Northridge, Chatsworth, Porter Ranch, North Hills, Sylmar and San Fernando. The map below outlines the Granada Hills area we cover.

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See our completed roofing projects →

Questions

Frequently Asked Questions

How do you find where a leak is coming from when the stain is somewhere else?

Water that gets through the roof often runs along the underlayment, a rafter, or the top of a ceiling joist before it drips, so the stain can sit several feet from the entry point. Roof Replacement Inc starts in the attic where there is access, following water marks, darkened decking, and rusted nail tips back uphill, then checks the flashing, vents, and valleys on the roof above that path. On Granada Hills homes with flat patio sections, the membrane seams and drains get the same check. Call (213) 364-3979 to schedule a leak inspection.

Is there anything I should do before the repair crew arrives?

Clear furniture, rugs, and anything stored under the leak, and set a bucket or container in place to catch dripping water. A few photos of the stain and any wet drywall or flooring help the crew see how the leak has behaved. Please stay off the roof, since wet or steep sections are easy to slip on, and let the crew handle the roof itself when they reach your Granada Hills home. Call (213) 364-3979 to get on the schedule.

My Granada Hills home near O'Melveny Park is on a hillside lot. Does that affect how a leak repair is done?

Hillside lots in North Granada Hills near O'Melveny Park can make roof access more involved, particularly on steeply pitched rear slopes where standard ladder placement is not straightforward. Roof Replacement Inc accounts for access conditions when scoping a repair, and the pitch of the roof also affects which materials and techniques are appropriate for any flat or low-slope sections on the property. Call (213) 364-3979 to discuss your specific lot and roof configuration.

Why is there water on a wall or around a window rather than on the ceiling?

When water runs down inside a wall or appears above a window, the entry point is often higher up: step flashing where a roof section meets a second-story wall, the flashing around a chimney, or an eave where the gutter or drip edge has come loose. Sometimes the cause is the window seal or the stucco instead, which is not a roof repair. Roof Replacement Inc checks the roof flashing and eaves above the wet spot on your Granada Hills home first and will point you to the right trade if the roof is not the source. Call (213) 364-3979 to set up an inspection.

Can a roof valley leak on my Granada Hills home be repaired without replacing the whole roof?

In many cases, yes. If the shingles surrounding the valley are still in serviceable condition and the failure is isolated to the valley flashing itself, Roof Replacement Inc can replace the flashing and reseat the surrounding shingles without a full tear-off. If the inspection reveals that the broader roof surface is also deteriorated, a full replacement becomes the more practical answer. Call (213) 364-3979 and we can assess the valley and the surrounding field on your Granada Hills home.

Why does my Granada Hills roof only leak during heavy or wind-driven rain?

Leaks that appear only during heavy or wind-driven rain often point to flashing that has lifted slightly, a valley that handles normal runoff but is overwhelmed by volume, or a shingle edge that allows wind-pushed water to travel uphill under the course above it. These leaks can be easy to miss during a dry inspection, so Roof Replacement Inc looks specifically at the geometry and condition of areas where wind-driven water is most likely to enter. Call (213) 364-3979 to schedule a targeted inspection on your Granada Hills home.

Why did my roof start leaking with the first storm after summer?

Over the dry months, leaves and dust settle in valleys and gutters, and the first storm can back water up under the shingles before it has anywhere to drain. Summer heat also dries out sealant at vents and flashing and can crack rubber pipe boots, and those small openings do not show until it rains. A first-storm leak on a Granada Hills roof is often one of these contained failures rather than a sign the whole roof needs replacing. Call (213) 364-3979 to have the roof inspected.

Will a roof coating stop a leak on a flat patio roof?

Only if the leak is from minor surface cracking on a membrane that is otherwise sound. A coating does not close an open seam, fix flashing that has pulled away from the wall, or clear a drain that lets water pond, and coating over those problems tends to hide the leak rather than stop it. For a flat patio roof on your Granada Hills home, Roof Replacement Inc repairs the seam, flashing, or drain first and recommends a coating only where the membrane can support one. Call (213) 364-3979 to have the flat section evaluated.

What Our Clients Say

Roof Replacement Inc. provided outstanding service for our roofing repair. The roofing contractors were quick to respond and conducted a thorough inspection before starting the repairs. The roof repair was completed promptly, and the quality of the work was excellent. The team was professional and respectful, ensuring that the area was clean after the job was done. We are extremely satisfied with their service and will definitely use them again if needed. Highly recommend.

Ryland Bear

Researched for 2 years and chose because they had a Better Business Bureau A+ . That and they didn’t time pressure me at all, in fact , Adolpho graciously came back out when I asked if just coating it all over with Silicone would work . He explained everything without rushing or ever making me feel like I was taking up his time. As a single woman homeowner I appreciated that. He is a man of integrity and has gone above and beyond before during and now after the work has been done. I believe him when he says he’ll be there if there’s any other concerns . Highly recommend Adoloho and his team.

Corine Bohrer

We hired Roof Replacement for a complete roof replacement on our home,,, and they exceeded expectations. The local roofing companies we contacted couldn’t match their level of expertise and professionalism. The roofing services included a comprehensive assessment and a detailed plan for the replacement. The new roof is of high quality, and the roof replacement cost was very reasonable. The team was efficient and finished the project ahead of schedule. We highly recommend their services.

Brady Benedict

More Verified Customer Reviews

      EXCELLENT  
   Based on 275 reviews 
    
 
 
 
   
 
 
      Posted on Google  
   
   Crista Klayman 
 11 November 2026
 
 
 Trustindex verifies that the original source of the review is Google. WONDERFUL IN EVERY WAY!!!! Pure perfection from start to finish xoxoxoxo

Owner's reply
It means the world to us to read this, Crista!! Enjoy your beautiful new roof. Please reach out if you ever need maintenance or an inspection in the future. We are always here to help!
  
 
     Posted on Google  
   
   Rhonda Britten 
 10 November 2026
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service. Monnix was patient and answered all my questions. And thanks to chatgpt, I had a lot of them. I highly recommend Monnix and Roof Replacement.

Owner's reply
Coming prepared with in-depth research makes for an incredible partnership, and we will certainly pass along your high praise to Monnix! Delivering thorough guidance, reliable craftsmanship, and complete peace of mind is what our Los Angeles roofing team strives for on every single home. We appreciate your support and look forward to keeping your home protected for decades to come.
  
 
     Posted on Yelp  
   
   Patrick D. 
 9 November 2026
 
 
 Verified Adolfo and his team did a fantastic job replacing my entire roof. I was on a tight time schedule to complete my roof before a major rain storm, and Adolfo's team got the job done beautifully. I'm grateful my real estate agent put me in touch with this team.
  
 
     Posted on Google  
   
   Heather Cook 
 2 November 2026
 
 
 Trustindex verifies that the original source of the review is Google. Amazing from start to finish. They give you a clear quote at the beginning. Once the job started there was clear communication on what was going on in the project. Adolfo really took time to talk and tell us about our roof. Monnix was also great in facilitating everything.

The final product looks great and so far is working great too! I feel like they also have reasonable prices. I had quotes that were lower and quotes that were double. But I think they really wanted to solve our problem so I went with them.

Owner's reply
Hi Heather, we deeply appreciate your trust in Roof Replacement Inc. to protect your home. Adolfo, Monnix, and our entire Los Angeles roofing team always strive to provide transparent guidance and a stress-free experience so you can feel confident in your investment. Enjoy the peace of mind under your new roof, and please reach out if you ever need future maintenance!
  
 
     Posted on Google  
   
   Elise Pearlstein 
 29 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Adolfo and his team are total pros. He is very knowledgable and helps with problem-solving. We had a few lingering issues to complete the job and he personally visited the site and made sure that everything was done correctly and that we were happy. The company is well-staffed with good equipment so that helps with their efficiency.

Owner's reply
Working on your property was an absolute pleasure, Elise! We take great pride in finding the right solutions for every unique project, and ensuring your home has decades of reliable weather protection is our highest priority. Thank you for choosing Roof Replacement Inc., and please do not hesitate to reach out if you ever need anything down the road.
  
 
     Posted on Google  
   
   Eduardo Carranza 
 27 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. I had a great experience. This team was professional, reliable, and easy to work with throughout the entire process.

Owner's reply
It was an absolute pleasure assisting you with your property, Eduardo! Our ultimate goal as your dedicated roofing team in Los Angeles is to provide clear, straightforward guidance from day one so you can make confident decisions about your home. Please do not hesitate to reach out if you need further roof maintenance or support down the road.
  
 
     Posted on Google  
   
   jamie mccowen 
 12 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Great pricing, friendly and helpful, and the job was done well. Would recommend to anyone looking to get some remodeling done.

Owner's reply
Thank you so much for the fantastic feedback, Jamie! We're thrilled everything went smoothly with your remodeling project, and we're always here for any future roofing or home improvement needs!
  
 
     Posted on Google  
   
   Colin McCowen 
 11 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Called for an estimate because I’m planning to do some remodeling, they were very nice and helpful, pricing was reasonable, and would highly recommend.

Owner's reply
Thank you for your review, Colin! It is fantastic to hear that our team could provide the clarity and support you needed for your upcoming project. Please keep us in mind whenever you are ready to take the next step!
  
 
     Posted on Google  
   
   angel m 
 5 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Had them come to my house for an estimate. Not only was the price reasonable but they were super friendly and willing to work with me. I would recommend this company to anybody who’s looking to get their roof done.

Owner's reply
It was a pleasure walking you through your roofing options, Angel!

Our team is dedicated to providing honest, transparent guidance so you can make the best decision for your home. Whenever you are ready to move forward with a Roof Replacement Inc, we will be right here to help.
  
 
     Posted on Google  
   
   Jimmy Alastair Martinez Real Estate Inc. 
 5 October 2026
 
 
 Trustindex verifies that the original source of the review is Google. Adolfo is an excellent roofer and always does a great job for my clients! I highly recommend Adolfo for all of your roofing needs.

Owner's reply
We deeply appreciate your continued partnership and recommendation, Jimmy!

Ensuring your clients receive dependable inspections and seamless roofing solutions is a responsibility we take seriously. Our team are always ready to support your next project!

Roof Leak Repair in Granada Hills

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