Seattle Roofing Built for the Pacific Northwest
A roof in the Seattle area does more than cover a building. It has to manage long wet seasons, wind-driven rain, shaded roof planes, organic debris, repeated wet-dry cycles, penetrations, drainage and ventilation without allowing small defects to become expensive interior damage.
A1 Roofing provides residential, commercial and multifamily roofing throughout Seattle and the surrounding communities. Our work is organized around one principle: identify how the roof is supposed to move water, locate where that system is failing, and recommend the level of work that actually fits the condition of the building.
Whether the project is a localized leak repair, a full roof replacement, a low-slope membrane system, storm-damage evaluation or planned maintenance for a larger property, the first step is a clear assessment.
Roofing Services for Seattle Homes and Buildings
We provide complete roofing services for existing buildings and new construction. The scope may include roof repair, replacement, installation, inspection, maintenance, leak investigation, storm-damage repair, roof-deck and sheathing work, ventilation corrections and low-slope roofing systems.
For homeowners, the goal is usually to protect the structure without replacing more roof than necessary. For commercial and multifamily owners, the decision often includes service life, drainage, tenant or business disruption, phased work and long-term maintenance planning.
Roof Repair Before Damage Spreads
A roof leak is not always directly above the visible ceiling stain. Water can enter around flashing, vents, skylights, roof-to-wall transitions, valleys, membrane seams or damaged roofing and travel along framing before it becomes visible indoors.
Our roof-repair process starts with the probable water path, not just the interior symptom. When repair is appropriate, the objective is to correct the failure point and integrate the repair with the surrounding roof system. When the surrounding roof has reached the end of its useful condition, we explain why a replacement may be the more defensible option.
Roof Replacement With the Entire Assembly in Mind
A replacement roof is more than new shingles or membrane. The project should account for the roof deck, underlayment, flashing, penetrations, ventilation, edges, valleys, drainage and the compatibility of every component.
For steep-slope homes, common options include architectural asphalt shingles, metal roofing and selected cedar systems. For low-slope residential, commercial and multifamily buildings, membrane systems such as TPO, PVC and EPDM may be appropriate depending on the roof design, use and project requirements.
Commercial and Multifamily Roofing
Commercial and multifamily roofing requires a different planning approach from a typical single-family replacement. Access, safety, occupied spaces, tenant communication, rooftop equipment, drainage, phased work and maintenance history can all affect the scope.
A1 Roofing can evaluate repair versus replacement, review membrane and flashing conditions, document active concerns, and develop a project approach that reduces avoidable disruption.
Roofing Systems We Work With
Our roofing-system pages explain where each material fits and what should be evaluated before choosing it. Material selection should follow roof geometry, drainage, substrate condition, exposure, maintenance expectations and budget — not a one-size-fits-all sales pitch.
Project Gallery
Real project photography only — replace these frames with photos of actual completed work. Add project-location captions only for real completed projects.
Serving Seattle and the Greater Seattle Area
Greater Seattle Roofing Service AreasA1 Roofing serves Seattle and surrounding communities across the Eastside, North King County, South King County and the Seattle-to-Everett corridor, including Bellevue, Redmond, Kirkland, Mercer Island, Issaquah, Sammamish, Renton, Kent, Shoreline, Burien, SeaTac, Tukwila, Bothell, Woodinville, Kenmore, Lake Forest Park, Lynnwood, Edmonds, Mountlake Terrace, Mukilteo, Everett, Federal Way, Auburn, Newcastle and Des Moines.
Use our Service Areas page to find the roofing page for your city.
A More Useful Roofing Estimate
A useful estimate should make the scope understandable. Before authorizing major work, the owner should know what roof area is included, which material or system is proposed, what is being removed, how damaged decking is handled, how flashing and penetrations are treated, what cleanup is included, and what conditions could change the price.
Our Seattle roofing cost guide explains the major factors that affect a Seattle-area roof project without pretending that a meaningful price can be produced from square footage alone.
Permits and Washington Contractor Verification
Permit requirements depend on the project and local jurisdiction. Seattle treats detached one- and two-family roof work differently from many commercial and multifamily reroof projects, and nearby cities may use different thresholds or requirements. We maintain a dedicated Seattle-area roofing permits page with links to official local resources.
Washington also provides a public L&I contractor verification system. Before publishing the A1 Roofing website, insert the company's exact Washington contractor registration number in Settings so it appears in the footer and contractor-information sections.
If you are seeing an active leak, damaged roofing, recurring ceiling staining, aging shingles, failing membrane seams or unexplained moisture, schedule an evaluation before deciding what the solution should be.
Request a Roofing EvaluationCall +1206 955 8411 or use the contact form.