Fast, Reliable Roof Replacement & Installation Across Boulevard Park
A full roof replacement on a Boulevard Park home typically runs $12,000-$28,000 depending on size and material, with most asphalt shingle jobs completed in 2-3 days and flat roofing projects in 1-2 days. Our crews are familiar with the tight lots, alley access, and mid-century housing stock throughout ZIP 98168, and we carry the specific ventilation expertise needed for homes that received Port of Seattle noise-insulation retrofits. If you’re seeing water stains, missing shingles, or your roof is past twenty years, call (866) 850-9676 - a live person answers, and we’ll have someone out to walk your roof within 24 hours.
We’ve been driving to Boulevard Park since 2016. We know the difference between the original post-WWII ranches near 8th Ave S and the later infill closer to the Duwamish Waterway. We know which streets have alley-only access and which require crane permits for material delivery. That local knowledge saves you time and protects your property. Our Roof Replacement & Installation team doesn’t guess - we plan.
Why Ridgeline Roofing Co. of Seattle Is Boulevard Park’s Preferred Roof Replacement & Installation Company
Homeowners in Boulevard Park call us because we show up, we explain what we found, and we fix it without runaround. Over 42 years, we’ve replaced hundreds of roofs in 98168 and the surrounding neighborhoods. Our reviews from Boulevard Park customers consistently mention the same things: Neil Cavanaugh’s crew arrived when promised, took photos from the actual roof, and never pushed unnecessary work.
Response time matters here. Boulevard Park sits between Burien and Tukwila with Sea-Tac to the south - when a winter storm rolls through or a low-slope shed roof starts ponding, you don’t want to wait. Our phones are staffed by a live person 24 hours a day, including nights, weekends, and the middle of a storm. Most Boulevard Park calls reach a technician on the roof the same day or next morning.
We also understand the hidden conditions that trip up out-of-town crews. The Port of Seattle’s Residential Sound Insulation Program funded dense-pack attic insulation in many 98168 homes, and that work frequently blocked soffit and ridge vents. A roofer who doesn’t check for this can lay new shingles over rotted sheathing and trapped moisture. We check. We document with photos. And if we find it, we remediate before the new roof goes on.
Our Roof Replacement & Installation Services in Boulevard Park
Full Roof Replacement
Most Boulevard Park homes are on their second or third composition shingle roof, with original plywood or board sheathing underneath that may have suffered decades of moisture damage. Our full replacements start with a complete tear-off and decking inspection - especially critical in 98168, where blocked ventilation from Port-funded insulation retrofits often hides rot. On a 1950s ranch home on 9th Ave S, we uncovered blocked ridge vents during a full GAF Timberline shingle replacement - the Port’s insulation had plugged the airflow, leading to rotted sheathing. We remediated the ventilation, replaced 3 sheets of plywood, and installed zinc strips for moss control before the new roof went on. That’s the standard we hold for every Boulevard Park job.

Asphalt Shingles
Asphalt shingles remain the practical choice for Boulevard Park’s modest ranch homes and bungalows. We install GAF, CertainTeed, and Atlas architectural shingles with full synthetic underlayment and ice-and-water shield at valleys and eaves. Every asphalt job in Boulevard Park includes zinc or copper moss-treatment strips along the ridge - non-negotiable given the persistent drizzle and mature Douglas firs that shade north- and west-facing planes. The cost range for a typical 1,200-1,800 square foot Boulevard Park home runs $12,000-$18,000 complete.

Flat Roofing
Low-slope shed additions are common on post-WWII ranches throughout Boulevard Park, and they’re frequent problem areas for standing water and flashing failure. We install TPO and modified bitumen systems specifically engineered for these pitches, with proper crickets and tapered insulation to move water to drains. Flat roofing in Boulevard Park demands particular attention to detail - the cool, wet climate means any ponding becomes a long-term liability. Typical flat roof replacement on a Boulevard Park shed addition: $4,500-$9,500.

New Construction
For infill and rebuild projects near the Duwamish Waterway or along 8th Ave S, we coordinate with framers and general contractors on decking, ventilation design, and material delivery through tight alley access. We plan crane placement and dumpster positioning before the job starts, so Boulevard Park neighbors aren’t inconvenienced and your project stays on schedule.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Boulevard Park
We are authorized installers for GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral - and we stock the full accessory lines for each. For Boulevard Park homeowners, that means no substitution games and no waiting on special-order ridge caps, starter strips, or ventilation components. We specify GAF Cobra ridge vent for most 98168 reroofs, with Atlas StormMaster Slate or Tamko Heritage architectural shingles as popular upgrades. Every material carries full manufacturer warranty plus our own 90-Day Done Right Promise: if it’s not right, we come back and make it right, no paperwork, no arguing.
Common Roof Replacement & Installation Problems We See in Boulevard Park Homes
- Hidden vent blockages from Port-funded insulation. The dense-pack cellulose installed through the Port’s noise abatement program frequently plugs soffit and ridge vents. Trapped moisture then rots sheathing from below, turning what looks like a standard tear-off into a partial deck replacement. We inspect every vent pathway before quoting.
- Moss and lichen colonization on shaded planes. Boulevard Park’s 37-38 inches of annual rainfall falls as persistent cool drizzle, ideal for moss growth on north- and west-facing roofs shaded by mature Douglas firs. Reroofing without biocide treatment and zinc strips guarantees early failure of the new shingles.
- Standing water on low-slope shed additions. The shed-style additions common to 1950s ranches in Boulevard Park often lack proper pitch or drainage. Water ponds, flashing deteriorates, and leaks enter at the wall intersection. We rebuild these areas with proper slope and membrane systems.
- Original board sheathing past service life. Many Boulevard Park homes built 1945-1965 have 1×6 or 1×8 board sheathing that’s dried, cracked, and no longer holds fasteners properly. We replace with CDX plywood to current code, especially critical given the added weight of modern architectural shingles.
Pricing for Roof Replacement & Installation in Boulevard Park, WA
Roof replacement costs in Boulevard Park track slightly below Seattle metro averages due to modest home sizes, though access challenges and deck repairs can offset savings. Here’s what we see in the 98168 market:
| Service | Typical Range | Notes |
|---|---|---|
| Asphalt shingle replacement (1,200-1,800 sq ft) | $12,000-$18,000 | Includes tear-off, synthetic underlayment, basic ventilation |
| Asphalt shingle replacement (1,800-2,400 sq ft) | $18,000-$24,000 | Larger ranches, complex hip roofs |
| Metal roofing (standing seam) | $24,000-$38,000 | Long lifespan, premium for Boulevard Park waterfront exposure |
| Flat/low-slope membrane (shed addition) | $4,500-$9,500 | TPO or modified bitumen with tapered insulation |
| Deck repair/replacement (per sheet) | $85-$140 | Required when Port insulation blocked vents caused rot |
| Zinc moss treatment + biocide wash | $450-$750 | Standard add-on for Boulevard Park’s shaded, damp conditions |
What moves the number: roof pitch, number of layers to tear off, deck condition, ventilation remediation needs, and material choice. We provide no-hassle upfront pricing - the number on the estimate is the number on the invoice. No surprises. Call (866) 850-9676 for a free written estimate; we honor our Free Second Opinion on Any Written Estimate if you’ve already been quoted elsewhere.
We Also Serve Cities Near Boulevard Park
Our crews work throughout south King County. If you’re in Riverton, Tukwila, SeaTac, or Bryn Mawr-Skyway, the same live-answer phones, same 90-Day Done Right Promise, and same photo-documented inspections apply. We know the building stock and climate patterns across these communities. For Boulevard Park specifically, our Roof Replacement & Installation in Boulevard Park page details the unique ventilation and access challenges we handle here.
Serving Boulevard Park, WA - Our Local Coverage Area
We’re based in the Boulevard Park area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Roof Replacement & Installation in Boulevard Park
Yes - we inspect and remediate blocked ventilation caused by Port-funded insulation as a standard part of our Boulevard Park tear-off process. We don’t work around it; we fix it. The dense-pack cellulose frequently plugs soffit and ridge vents, and laying new shingles over trapped moisture guarantees rot. We clear pathways, replace damaged sheathing, and restore proper airflow before installing your new roof. Call (866) 850-9676 for a free inspection - estimates are free.
Yes, every reroofing job in Boulevard Park includes biocide washing and zinc or copper treatment strips as standard. The north-facing planes shaded by mature firs are moss magnets in this climate, and installing new shingles over active growth voids manufacturer warranties. We kill it, clean it, and prevent regrowth. For a house on 10th Ave S or anywhere in 98168, this is built into our process, not an upsell. Call (866) 850-9676 to schedule.
Yes, we specialize in the shed-style additions found throughout Boulevard Park’s post-WWII housing stock. These low-slope areas require membrane roofing - TPO or modified bitumen - not standard shingles, plus proper crickets and drainage design to prevent standing water. Typical replacement cost runs $4,500-$9,500 depending on size and access. We’ve replaced dozens of these in 98168. Call (866) 850-9676 for an exact quote.
We survey access before quoting and plan material delivery around your specific situation. Many Boulevard Park lots have alley-only access or narrow driveways; we use conveyor systems, smaller delivery vehicles, or crane placement from the street when needed. We protect driveways and landscaping, and we coordinate timing to minimize neighbor impact. If crane permits are required, we handle the paperwork. Call (866) 850-9676 and we’ll walk your property to plan the approach.
Yes, we are licensed and equipped for asbestos-containing roofing material removal per Washington State Department of Labor & Industries requirements. Many Boulevard Park homes built 1945-1980 have asbestos-cement shingles or felt. We test when suspected, file proper notifications, and follow abatement protocols that protect your family, neighbors, and crew. This adds $2,000-$5,000 to typical replacement cost depending on square footage and encapsulation needs. Never attempt DIY removal - disturbed asbestos fibers are a serious health hazard. Call (866) 850-9676 for safe, legal handling.
Written by Neil Cavanaugh, Owner at Ridgeline Roofing Co., serving Boulevard Park and Seattle-area homeowners since 2016.