Metal Roof Repair Seattle: Commercial, Residential
A leak, a loose panel, or a failing fastener rarely stays a small problem for long. Left unaddressed, moisture works into the decking beneath the panel and turns into rot or an interior water stain. Seattle averages roughly 150 rainy days and 38 inches of rainfall a year, and wind events off Puget Sound pick up through fall and winter. That combination puts steady pressure on seams, flashing, and fasteners across most of the city’s roofs.
Metal Roofing Seattle WA handles this kind of work for homes and businesses throughout the city, from Ballard and Fremont to Beacon Hill and Rainier Valley. Our crews are licensed and insured, and every job follows Washington Building Code requirements for wind resistance and water intrusion prevention. Inspections cover exposed fasteners, ridge caps, flashing, panel seams, and attic signs of moisture before any recommendation gets made.
Storm damage doesn’t wait for a convenient time. When a windstorm causes visible damage, our emergency roofing services get the roof sealed before water finds its way further in.
Our Metal Roof Repair Services
Leaks at flashing points, rust at exposed fasteners, loose panels after windstorms, and seam separation on older standing seam roofs make up most of the calls we get across Seattle. Flashing is usually the weak point, not the panel itself. Valleys, chimney flashing, and roof penetrations account for the majority of leaks we find, and the flat field of the panel is rarely where the water gets in.
Tree cover shapes a lot of this. Douglas fir and Western red cedar needles collect in valleys and behind flashing on homes in tree-lined neighborhoods like Wedgwood, View Ridge, and Blue Ridge. Lower-slope roofs near Green Lake and Wallingford trap needles and moss against seams, holding moisture there far longer than the panel coating is designed to tolerate. None of this looks serious from the ground. A soft spot in the decking or a ceiling stain is often the first sign, and by then the moisture has usually been sitting for months.
Older galvanized panels on Craftsman bungalows in Ballard and standing seam systems on commercial buildings in SoDo don’t fail the same way, and that range of work is what lets us identify the actual source of a leak on inspection instead of guessing.
Residential Metal Roof Repair Seattle
Rain, seasonal wind, and moss growth are a constant for Seattle homeowners, and each one breaks down sealant or lifts panel edges in its own way over time. Housing stock across the city varies widely, and repair work has to account for that. Properties we work on include:
- Craftsman bungalows and older single-family homes in Ballard, Fremont, and Wallingford
- Mid-century homes in Wedgwood, View Ridge, and Northgate
- Floating homes and houseboats on Lake Union and Portage Bay, where metal roofing is common due to weight restrictions
- Detached garages, backyard studios, and accessory dwelling units (ADUs)
- Covered porches, carports, and patio roofs using corrugated or standing seam panels
Sheds and garages generate a large share of our residential calls, particularly on older outbuildings in Beacon Hill and Rainier Valley. Floating homes near Lake Union present a different pattern: corrosion tends to start at ridge vents and roof penetrations, where moisture off the water speeds up rust faster than it would on an inland property.
Common residential repair work includes:
- Standing seam and corrugated panel repair on single-family homes
- Shed, garage, and ADU roof repair
- Flashing repair around chimneys, skylights, and roof vents
- Fastener replacement on older galvanized and steel roofs
- Leak repair following Seattle windstorms and heavy rain events
Commercial Metal Roof Repair Seattle
Larger roof surfaces mean more penetrations, and every HVAC unit, exhaust vent, and drain point on a commercial building is a potential leak source. Drainage slope, structural load, and code compliance all factor into commercial work in a way residential repairs don’t usually require. Properties we service include:
- Warehouses and light industrial buildings in SoDo and Georgetown
- Breweries and manufacturing buildings in Ballard’s industrial corridor
- Marine and waterfront facilities near the Port of Seattle and Fishermen’s Terminal
- Office buildings and mixed-use properties in South Lake Union
- Multi-family and apartment buildings in Capitol Hill and the University District
- Medical and institutional buildings near UW Medical Center and First Hill
- Retail centers and strip properties along major commercial corridors
Business hours matter to tenants and operations, so scheduling works around them rather than against them. A written scope of work goes out before anything starts, so property managers and business owners know exactly what’s covered and what it costs.
What to Expect During Your Metal Roof Repair
The process stays consistent whether the job is a small leak on a houseboat roof in Portage Bay or a flashing repair on a SoDo warehouse.
- Fasteners, seams, flashing, and penetration points all get checked during the initial walk of the roof. Steep or hard-to-access sections get a ladder and drone inspection instead, so nothing gets missed and no one takes an unnecessary risk.
- Interior water stains rarely mark the actual entry point. Tracing the path back to its source is standard, since the leak is usually a seam or penetration several feet away from where the stain shows up inside.
- Damaged fasteners, panels, or flashing sections get removed and replaced with materials matched to the existing roof system, which prevents corrosion between incompatible metals.
Fastener failure deserves a closer look, since it’s one of the most common repair triggers we see. Exposed-fastener panels rely on a screw driven through the panel face into a neoprene washer, and that washer is the first thing to give out. Sun exposure and temperature swings dry out and crack the rubber over several years, and once the seal fails, water tracks down the screw shaft into the deck below. Seattle’s daily and seasonal temperature shifts also cause the metal panel to expand and contract slightly with every warm-to-cool cycle. Over hundreds of cycles, that thermal movement works screws loose from the decking underneath, which is why older exposed-fastener roofs need periodic fastener replacement even without any storm event. Standing seam systems avoid this specific failure mode, since their fasteners sit hidden under the seam rather than exposed to sun and rain directly.
- All roof penetrations, including vents, pipe boots, and flashing edges, get resealed with materials rated for the Pacific Northwest’s rain and UV exposure.
- A water test on the repaired area confirms the leak is resolved before the job gets closed out.
Cost depends on what’s actually wrong. Replacing a handful of exposed fasteners is a modest repair. Flashing work around a chimney or valley costs more, since it involves removing and resealing multiple layers. Replacing individual damaged panels sits at the higher end of repair pricing, particularly if the panel profile is discontinued and needs custom fabrication to match. Roof accessibility, material type, and how far water has already traveled into the structure all affect the final number. Repair stays the more cost-effective option in most cases. Replacement becomes the better financial decision once damage spreads across a large portion of the roof, since patching a roof nearing the end of its service life often costs more over time than addressing it once with a full system.
Metal Roofing Options for Repair
Panel type drives the repair method, and matching new material to what’s already on the roof keeps the system consistent and prevents galvanic corrosion between incompatible metals.
Standing seam panels, common on newer builds in South Lake Union and Capitol Hill, generally call for seam or clip repair rather than fastener replacement, since their fasteners sit hidden beneath the panel rather than exposed to the weather. Corrugated and exposed-fastener panels, common on older homes and outbuildings in Rainier Valley and Beacon Hill, wear differently: seasonal temperature swings work the screws loose over time, making fastener replacement the first line of repair. Galvalume and galvanized panels, found across a lot of Seattle’s older housing stock, get repaired at the point where the protective coating has already failed, since exposed steel underneath corrodes faster than the surrounding panel. Aluminum panels, favored on floating homes for their light weight, resist rust well but can develop seam fatigue with age instead.
Beyond a certain point, patching stops making financial sense. Once damage covers more than 25 to 30 percent of the roof surface, a full metal roof replacement usually costs less over time than continued repair. That assessment gets made directly during inspection, not after a repair has already been billed.
Metal Roof Repair Seattle
Ballard, Fremont, Capitol Hill, SoDo, and the floating homes on Lake Union have all seen our crews at work long enough to tell the difference between wind damage on a five-year-old standing seam roof and decades of wear on an older galvanized one. Every inspection draws on that same experience.
Roof inspections, storm damage repair, and general repair work make up what we provide across residential and commercial properties throughout Seattle. Searches for metal roofing repair near me tend to come from people dealing with exactly the wear patterns this climate and this city’s building stock create, and that’s the work we know best.