[et_pb_section fb_built=”1″ module_class=”page-headers-bg” _builder_version=”4.16″ use_background_color_gradient=”on” background_color_gradient_direction=”90deg” background_color_gradient_stops=”rgba(255,255,255,0.95) 40%|rgba(255,121,51,0.5) 100%” background_color_gradient_overlays_image=”on” background_color_gradient_start=”rgba(255,255,255,0.95)” background_color_gradient_start_position=”40%” background_color_gradient_end=”rgba(255,121,51,0.5)” background_image=”https:\/\/guardianroofs.com\/orange-county\/wp-content\/uploads\/sites\/3\/2020\/08\/commercial-roofs-main-bg.jpg” box_shadow_style=”preset1″ box_shadow_color=”rgba(0,0,0,0.35)” box_shadow_position=”inner” saved_tabs=”all” global_colors_info=”{}”][et_pb_row admin_label=”Heading” _builder_version=”4.16″ custom_padding=”100px||40px||false|false” locked=”off” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_text admin_label=”header 1″ _builder_version=”4.16″ _module_preset=”0e3405ca-f684-4478-ac9b-2a5043ecab64″ global_colors_info=”{}”]<\/p>\n
[\/et_pb_text][et_pb_button button_url=”%91acf field=’free_estimate_link’ post_id=’options’%93″ button_text=”Schedule Your Free Estimate” button_alignment=”left” button_alignment_tablet=”” button_alignment_phone=”center” button_alignment_last_edited=”on|phone” admin_label=”Page Hero” _builder_version=”4.23.4″ custom_button=”on” button_text_size=”16px” button_text_color=”#FFFFFF” button_bg_use_color_gradient=”on” button_bg_color_gradient_stops=”#0000ff 0%|#0000ff 100%” button_bg_color_gradient_start=”#0000ff” button_bg_color_gradient_end=”#0000ff” button_border_width=”0px” button_border_color=”#FFFFFF” button_border_radius=”30px” button_letter_spacing=”2px” button_font=”Poppins|600||on|||||” button_use_icon=”off” custom_margin=”||||false|false” custom_padding=”12px||12px||true|false” button_bg_color_gradient_stops_tablet=”#0000ff 0%|#0000ff 100%” button_bg_color_gradient_stops_phone=”#0000ff 0%|#0000ff 100%” custom_css_main_element=”background:var(–color-1);” global_module=”4005″ saved_tabs=”all” locked=”off” global_colors_info=”{}” button_text_color__hover_enabled=”off|desktop” button_border_width__hover_enabled=”off|desktop” button_border_width__hover=”2px” button_border_color__hover_enabled=”off|desktop” button_border_color__hover=”#000000″ custom_css_main_element__hover_enabled=”on|hover” button_bg_color__hover=”#000019″ button_bg_color__hover_enabled=”on|hover” button_bg_use_color_gradient__hover=”off” button_bg_enable_color__hover=”on” custom_css_main_element__hover=”background:var(–color-1);”][\/et_pb_button][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”3.22″ custom_padding=”70px|0px|70px|0px|true|false” global_colors_info=”{}”][et_pb_row column_structure=”3_4,1_4″ _builder_version=”3.25″ custom_padding=”35px|0px|35px|0px|true|false” global_colors_info=”{}”][et_pb_column type=”3_4″ _builder_version=”3.25″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_text admin_label=”Header 2″ _builder_version=”4.9.4″ text_line_height=”2em” header_2_font=”Poppins|600|||||||” header_2_font_size=”30px” custom_margin=”||10px||false|false” header_2_font_size_tablet=”30px” header_2_font_size_phone=”26px” header_2_font_size_last_edited=”on|phone” saved_tabs=”all” global_colors_info=”{}”]<\/p>\n
[\/et_pb_text][et_pb_text admin_label=”Content” _builder_version=”4.20.0″ text_font=”Poppins||||||||” header_font=”||||||||” header_2_font=”||||||||” global_colors_info=”{}”]<\/p>\n
When you need commercial roof repair Orange County tenants and residents never have to think about, the job starts with finding where the water actually gets in. On a low-slope roof, that spot is often 10 or 20 feet from the stain on the ceiling. Guardian Roofs is a family-owned contractor that has worked on Southern California roofs since 1984, and we repair flat and low-slope roofs on apartment buildings, HOA communities, churches, assisted living facilities, offices, and retail buildings across the county.<\/p>\n
We hold California contractor’s license #847279 (B1 general building and C39 roofing), and we are both a GAF Master Elite and an Owens Corning Platinum Preferred contractor. Our family-owned roofing team in Orange<\/a> works out of an office on North Batavia Street, so an estimator can usually walk your roof the next business day.<\/p>\n This page covers repairs: how we trace leaks on each roof system, the details behind most commercial leaks, when a repair stops making sense, and how we work around tenants and boards. For new roofs and the full range of systems we install, see our commercial roofing services in Orange County<\/a>.<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Header 2″ _builder_version=”4.9.4″ text_line_height=”2em” header_2_font=”Poppins|600|||||||” header_2_font_size=”30px” custom_margin=”||10px||false|false” header_2_font_size_tablet=”30px” header_2_font_size_phone=”26px” header_2_font_size_last_edited=”on|phone” saved_tabs=”all” global_colors_info=”{}”]<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Content” _builder_version=”4.20.0″ text_font=”Poppins||||||||” header_font=”||||||||” header_2_font=”||||||||” global_colors_info=”{}”]<\/p>\n Most commercial leaks here come from long dry seasons that quietly wear out seams and sealants, followed by a short, heavy rainy season that finds every weak spot at once.<\/p>\n NOAA’s 1991-2020 climate normals for the Santa Ana Fire Station<\/a> show about 12.5 inches of rain a year, with roughly 85 percent of it falling from November through March and less than a quarter inch from June through September. Through those dry months, sun and heat dry out sealants, open up old patches, and harden asphalt-based membranes.<\/p>\n Wind adds to it. A NOAA-hosted study of six and a half decades of Santa Ana winds<\/a> found these events peak in winter, with some of the strongest arriving in fall. Gusts lift loose edge metal and blow palm fronds and debris into drains right before the rain comes, which is why we suggest booking any Orange County commercial roof repair in late summer or early fall.<\/p>\n Ponding is the third common cause. The Asphalt Roofing Manufacturers Association<\/a> defines ponding as water that stays on a roof 48 hours or longer. Standing water speeds up membrane aging, adds weight, and turns a pinhole into a steady leak.<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Header 2″ _builder_version=”4.9.4″ text_line_height=”2em” header_2_font=”Poppins|600|||||||” header_2_font_size=”30px” custom_margin=”||10px||false|false” header_2_font_size_tablet=”30px” header_2_font_size_phone=”26px” header_2_font_size_last_edited=”on|phone” saved_tabs=”all” global_colors_info=”{}”]<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Content” _builder_version=”4.20.0″ text_font=”Poppins||||||||” header_font=”||||||||” header_2_font=”||||||||” global_colors_info=”{}”]<\/p>\n Every roof system fails in its own way, so the repair has to match the material.<\/p>\n The weak points are heat-welded seams, corners, and anywhere the membrane turns up a wall or curb. We probe seams by hand, look for shrinkage pulling the membrane away from edges, and check for fasteners the wind has worked loose. Repairs are heat-welded patches and new flashing in compatible membrane, so the fix becomes part of the roof.<\/p>\n Torch-down and cold-applied modified bitumen usually leaks at lap seams, blisters, and spots where the granule surface has worn off. We cut out blisters and wet areas, dry them, and install new plies that overlap sound material by the manufacturer’s required distance.<\/p>\n Older built-up roofs show cracking, splits, and bare spots where gravel has washed away, and gravel stops are frequent leak points. We remove the gravel, cut out damaged layers, rebuild the plies, and re-embed gravel so the surface keeps its sun protection.<\/p>\n When an acrylic or silicone coating fails, it peels, chalks, or lets water track underneath. We first check that the roof under the coating is dry, since coating over wet material traps the problem. If the roof is a good candidate for a full restoration, our page on commercial roof coatings<\/a> explains how that works.<\/p>\n [\/et_pb_text][et_pb_button button_url=”%91acf field=’free_estimate_link’ post_id=’options’%93″ button_text=”Get a Free Estimate” button_alignment=”center” admin_label=”Get a Free Inspection Body” _builder_version=”4.9.11″ custom_button=”on” button_text_size=”16px” button_text_color=”#FFFFFF” button_bg_color_gradient_start=”#557235″ button_bg_color_gradient_end=”#465f2b” button_border_width=”1px” button_border_color=”#FFFFFF” button_border_radius=”30px” button_letter_spacing=”1px” button_font=”Poppins|700||on|||||” button_icon=”%%28%%” custom_margin=”50px||50px||true|false” custom_padding=”10px||10px||false|false” custom_css_main_element=”background:var(–color-1);” global_module=”4009″ saved_tabs=”all” locked=”off” global_colors_info=”{}” custom_css_main_element__hover_enabled=”on|desktop” button_bg_color__hover_enabled=”on|hover” button_bg_color__hover=”#013A50″ button_bg_enable_color__hover=”on”][\/et_pb_button][et_pb_text admin_label=”Header 2″ _builder_version=”4.9.4″ text_line_height=”2em” header_2_font=”Poppins|600|||||||” header_2_font_size=”30px” custom_margin=”||10px||false|false” header_2_font_size_tablet=”30px” header_2_font_size_phone=”26px” header_2_font_size_last_edited=”on|phone” saved_tabs=”all” global_colors_info=”{}”]<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Content” _builder_version=”4.20.0″ text_font=”Poppins||||||||” header_font=”||||||||” header_2_font=”||||||||” global_colors_info=”{}”]<\/p>\n On most commercial roofs, the open field of membrane is not the problem. Leaks start at the details, and that is where most of our repair hours go:<\/p>\n When the cause is ponding, a patch only buys time. Commercial flat roof repair in Orange County often means changing how the roof drains, with tapered insulation, crickets that steer water to drains, or adjusted drain heights.<\/p>\n We did exactly that during our emergency re-roof of Malibu City Hall<\/a> after the January 2025 fires. Ember damage had let rain slip between the roof layers and pool. Our crew pumped and gravity-drained the trapped water through the existing drains before any tear-off, keeping it out of the occupied building, then installed a new TPO roof over tapered polyiso insulation so water now runs to the drains.<\/p>\n [\/et_pb_text][et_pb_image src=”https:\/\/guardianroofs.com\/orange-county\/wp-content\/uploads\/sites\/3\/2025\/09\/Guardian-Roofs-Post.jpg” alt=”New white TPO roof with tapered insulation installed by Guardian Roofs to stop ponding on a commercial building” title_text=”roof-repair” _builder_version=”4.10.5″ _module_preset=”default” border_width_all=”2px” border_color_all=”#FFFFFF” box_shadow_style=”preset2″ box_shadow_horizontal=”0px” box_shadow_vertical=”9px” box_shadow_blur=”13px” box_shadow_spread=”-5px” box_shadow_color=”rgba(10,10,10,0.49)” locked=”off” global_colors_info=”{}”][\/et_pb_image][et_pb_text admin_label=”Header 2″ _builder_version=”4.9.4″ text_line_height=”2em” header_2_font=”Poppins|600|||||||” header_2_font_size=”30px” custom_margin=”||10px||false|false” header_2_font_size_tablet=”30px” header_2_font_size_phone=”26px” header_2_font_size_last_edited=”on|phone” saved_tabs=”all” global_colors_info=”{}”]<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Content” _builder_version=”4.20.0″ text_font=”Poppins||||||||” header_font=”||||||||” header_2_font=”||||||||” global_colors_info=”{}”]<\/p>\n A repair makes sense when the problems are localized and the insulation under the roof is still dry. Once water has soaked a large share of the insulation, or the membrane is failing across the whole field, repeated patches cost more than they save. We tell you which side of that line your roof is on, with photos to back it up:<\/p>\n According to the Cool Roof Rating Council’s summary of the 2025 Energy Code<\/a>, when more than 50 percent of a nonresidential low-slope roof, or more than 2,000 square feet of it, whichever is less, is replaced, recovered, or recoated, the new surface generally needs a cool roof product rated at 0.63 aged solar reflectance and 0.75 thermal emittance. Exceptions cover added roof insulation, building-integrated solar panels, and heavy ballasted roofs. The California Energy Commission<\/a> applies the 2025 code to permit applications filed on or after January 1, 2026.<\/p>\n A true spot repair stays well under that threshold. On a 10,000-square-foot roof, though, recoating one wing can cross the 2,000-square-foot line, so we tell you before you approve a scope.<\/p>\n Roofing permits come from the city where the building sits, and from the county only in unincorporated areas. The City of Irvine, for example, lists separate commercial and multifamily re-roof packages on its electronic submittal page<\/a>, with a two-business-day review target. In unincorporated areas, OC Development Services<\/a> issues building permits. When a scope needs a permit, we pull it and schedule the inspections.<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Header 2″ _builder_version=”4.9.4″ text_line_height=”2em” header_2_font=”Poppins|600|||||||” header_2_font_size=”30px” custom_margin=”||10px||false|false” header_2_font_size_tablet=”30px” header_2_font_size_phone=”26px” header_2_font_size_last_edited=”on|phone” saved_tabs=”all” global_colors_info=”{}”]<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Content” _builder_version=”4.20.0″ text_font=”Poppins||||||||” header_font=”||||||||” header_2_font=”||||||||” global_colors_info=”{}”]<\/p>\n Protect people and electrical equipment first, document what you see, and call a roofer as soon as the business day starts. To be upfront: Guardian Roofs does not run a 24\/7 emergency service. What we do offer is quick replies and, in most cases, a next-day visit for active commercial roof leak repair in Orange County. Until we arrive:<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Header 2″ _builder_version=”4.9.4″ text_line_height=”2em” header_2_font=”Poppins|600|||||||” header_2_font_size=”30px” custom_margin=”||10px||false|false” header_2_font_size_tablet=”30px” header_2_font_size_phone=”26px” header_2_font_size_last_edited=”on|phone” saved_tabs=”all” global_colors_info=”{}”]<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Content” _builder_version=”4.20.0″ text_font=”Poppins||||||||” header_font=”||||||||” header_2_font=”||||||||” global_colors_info=”{}”]<\/p>\n Most of our commercial repairs happen on occupied buildings, so the roof is only part of the job. Guardian Roofs is a member of the Apartment Association of Orange County and the Southern California Rental Housing Association, and we work regularly with the owners and managers those groups represent. On every job:<\/p>\n HOA boards usually need to approve a scope before work begins. We work directly with boards on roofing for HOA communities<\/a> and provide the inspection reports they typically ask for.<\/p>\n [\/et_pb_text][et_pb_button button_url=”%91acf field=’free_estimate_link’ post_id=’options’%93″ button_text=”Get a Free Estimate” button_alignment=”center” admin_label=”Get a Free Inspection Body” _builder_version=”4.9.11″ custom_button=”on” button_text_size=”16px” button_text_color=”#FFFFFF” button_bg_color_gradient_start=”#557235″ button_bg_color_gradient_end=”#465f2b” button_border_width=”1px” button_border_color=”#FFFFFF” button_border_radius=”30px” button_letter_spacing=”1px” button_font=”Poppins|700||on|||||” button_icon=”%%28%%” custom_margin=”50px||50px||true|false” custom_padding=”10px||10px||false|false” custom_css_main_element=”background:var(–color-1);” global_module=”4009″ saved_tabs=”all” locked=”off” global_colors_info=”{}” custom_css_main_element__hover_enabled=”on|desktop” button_bg_color__hover_enabled=”on|hover” button_bg_color__hover=”#013A50″ button_bg_enable_color__hover=”on”][\/et_pb_button][et_pb_text admin_label=”Header 2″ _builder_version=”4.9.4″ text_line_height=”2em” header_2_font=”Poppins|600|||||||” header_2_font_size=”30px” custom_margin=”||10px||false|false” header_2_font_size_tablet=”30px” header_2_font_size_phone=”26px” header_2_font_size_last_edited=”on|phone” saved_tabs=”all” global_colors_info=”{}”]<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Content” _builder_version=”4.20.0″ text_font=”Poppins||||||||” header_font=”||||||||” header_2_font=”||||||||” global_colors_info=”{}”]<\/p>\n We do not quote a repair before we see the roof, because the same leak can be a one-hour fix or a sign of a larger problem. These factors move the price most:<\/p>\n Every estimate is free and in writing, with each repair listed separately so you can prioritize. For a larger scope, our lending partners offer financing options<\/a> that spread the cost over time.<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Header 2″ _builder_version=”4.9.4″ text_line_height=”2em” header_2_font=”Poppins|600|||||||” header_2_font_size=”30px” custom_margin=”||10px||false|false” header_2_font_size_tablet=”30px” header_2_font_size_phone=”26px” header_2_font_size_last_edited=”on|phone” saved_tabs=”all” global_colors_info=”{}”]<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Content” _builder_version=”4.20.0″ text_font=”Poppins||||||||” header_font=”||||||||” header_2_font=”||||||||” global_colors_info=”{}”]<\/p>\n We follow the same five steps on every job, adjusted for commercial buildings.<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Header 2″ _builder_version=”4.9.4″ text_line_height=”2em” header_2_font=”Poppins|600|||||||” header_2_font_size=”30px” custom_margin=”||10px||false|false” header_2_font_size_tablet=”30px” header_2_font_size_phone=”26px” header_2_font_size_last_edited=”on|phone” saved_tabs=”all” global_colors_info=”{}”]<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Content” _builder_version=”4.20.0″ text_font=”Poppins||||||||” header_font=”||||||||” header_2_font=”||||||||” global_colors_info=”{}”]<\/p>\n These are the questions owners, managers, and board members ask us most during a repair estimate.<\/p>\n Small spot repairs often do not, but re-roofing, recovering, and larger repairs usually do. Permits come from the city the building is in, or from OC Development Services in unincorporated areas, and each city sets its own rules. We confirm the requirement for your address and pull any permit the work needs.<\/p>\n Under the 2025 Energy Code, it applies when more than 50 percent of a nonresidential low-slope roof, or more than 2,000 square feet, whichever is less, is replaced, recovered, or recoated. Spot repairs stay below that line. A large recoat can cross it, and then the new surface needs a rated cool roof product unless an exception applies.<\/p>\n Water that stays on a roof 48 hours or longer is ponding. It usually points to low spots, crushed insulation, or blocked or poorly placed drains. A patch will not fix it, so the lasting repair restores drainage with tapered insulation, crickets, or drain corrections.<\/p>\n Yes, but check the warranty first. Many manufacturer warranties require approved materials for repairs, and some require notifying the manufacturer or using an authorized contractor. Send us the warranty paperwork and we will plan the repair so your coverage stays intact.<\/p>\n No. Guardian Roofs does not offer around-the-clock service, and we would rather say so up front. We reply quickly during business hours and can usually inspect an active leak the next day. Until then, protect occupants and equipment, catch the water, and photograph what you see.<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Header 2″ _builder_version=”4.9.4″ text_line_height=”2em” header_2_font=”Poppins|600|||||||” header_2_font_size=”30px” custom_margin=”||10px||false|false” header_2_font_size_tablet=”30px” header_2_font_size_phone=”26px” header_2_font_size_last_edited=”on|phone” saved_tabs=”all” global_colors_info=”{}”]<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Content” _builder_version=”4.20.0″ text_font=”Poppins||||||||” header_font=”||||||||” header_2_font=”||||||||” global_colors_info=”{}”]<\/p>\n Whether it is an active leak, a stain that keeps coming back, or water sitting on the roof after storms, we will find the source and give you honest options in writing. Schedule your free commercial roof repair estimate<\/a> today.<\/p>\n [\/et_pb_text][et_pb_code _builder_version=”4.16″ global_colors_info=”{}”]Why Do Commercial Roofs in Orange County Leak?<\/h2>\n
How We Find and Repair Leaks on Each Type of Commercial Roof<\/h2>\n
TPO and PVC single-ply roofs<\/h3>\n
Modified bitumen roofs<\/h3>\n
Built-up (tar and gravel) roofs<\/h3>\n
Coated roofs<\/h3>\n
Flashing, Drains, and Ponding: Where Most Commercial Leaks Start<\/h2>\n
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Repair, Recover, or Replace: How Do You Decide?<\/h2>\n
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When California’s cool roof rules apply<\/h3>\n
Who issues the permit<\/h3>\n
What Should You Do When a Commercial Roof Starts Leaking?<\/h2>\n
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Working With Property Managers, HOA Boards, and Tenants<\/h2>\n
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What Affects the Cost of a Commercial Roof Repair?<\/h2>\n
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Our 5-Step Commercial Roof Repair Process<\/h2>\n
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Frequently Asked Questions About Commercial Roof Repair in Orange County<\/h2>\n
Does a commercial roof repair in Orange County need a permit?<\/h3>\n
When does a roof repair or recoat trigger California’s cool roof rules?<\/h3>\n
Why is there still water on our flat roof two days after it rained?<\/h3>\n
Can you repair a commercial roof that is still under a manufacturer warranty?<\/h3>\n
Do you offer 24\/7 emergency commercial roof repair?<\/h3>\n
Schedule a Commercial Roof Repair Estimate<\/h2>\n