Fast, Reliable Roof Replacement & Installation Across Aloha
A full roof replacement in Aloha typically runs $8,500-$16,000 for a standard single-family home, with most projects completed in two to three days once Washington County permits clear. We’re Ridgeline Roofing Co., and we’ve been replacing and installing roofs across unincorporated Washington County since 1984 - long before the tract homes off SW 185th Avenue and SW Farmington Road were anything but farmland. Our crews know the low-pitch ranch roofs and split-level layouts that dominate Aloha’s 97003 ZIP code, and we pull permits through Washington County’s building department every week, not Beaverton’s or Hillsboro’s. Call (844) 563-1816 any hour - a live person answers, even at 2 a.m. after a windstorm peels back your ridge cap.
Why Ridgeline Roofing Co. Is Aloha’s Preferred Roof Replacement & Installation Company
We’ve replaced roofs on homes within a mile of the Aloha Library, on quiet streets off SW 198th Avenue, and along the older stretches of SW Tualatin Valley Highway where the original 1970s ranches sit shoulder to shoulder. Our 90-Day Done Right Promise applies to every one of them - written, no paperwork runaround, no arguing. If it’s not right, we come back and make it right.
Our phones ring at all hours, and a live person picks up every time. No voicemail trees, no “we’ll call you back between 9 and 5.” That’s not a slogan - it’s how we’ve operated for over 42 years. Homeowners in Aloha tend to stay put for decades, and they remember who showed up after the last ice storm and who vanished.
Our technicians are background-checked, uniformed, and trained to document every inspection with photos from your actual roof - not a scary speech in your driveway. We hire local crews and train apprentices into journeymen. We’ll be here in thirty years. The storm chasers won’t.
We know the permitting rhythms of Washington County’s building department, the moss patterns that develop under mature Douglas firs, and the ventilation shortfalls built into Aloha’s original tract-home designs. That local fluency saves our customers time and second trips.
Our Roof Replacement & Installation Services in Aloha
Full Roof Replacement
Most Aloha homes are hitting the 40-50 year mark on their original roofs - the exact age where 3-tab shingles give up. On a ranch-style home near the 1700 block of SW 185th Avenue, we replaced a 45-year-old 3-tab roof that had been shaded by towering Douglas firs for decades, trapping moisture and fostering quarter-inch moss mats. We stripped the decks, applied a heavy-duty membrane, installed GAF Timberline HDZ shingles with dual-layer drip edge, and pulled Washington County permits upfront - wrapping the project in a single trip without the typical re-permit delays. That’s the standard we bring to every full replacement in Aloha.
Asphalt Shingles
Aloha’s low-pitch gable roofs demand shingles that shed water reliably even when moss, needles, and winter fog conspire against them. We install GAF, CertainTeed, and Owens Corning architectural shingles with enhanced nailing zones and StainGuard protection - critical in a climate where north-facing planes stay damp for six months straight. We never substitute materials. The brand on your estimate is the brand on your roof.
Flat Roofing
Detached workshops, ADUs, and the occasional carport on larger Aloha properties need flat or low-slope systems that won’t pond water through our persistent wet season. We install TPO and modified bitumen with proper tapered insulation - no shortcuts that turn into leaks by February. If you’ve got a shop roof that’s been patched three times, we’ll tell you straight whether replacement makes more sense than another band-aid.
Metal Roofing
For Aloha homeowners who want to shed moss and needles without climbing up every fall, standing-seam metal roofing offers genuine longevity. We install Atlas and Tamko metal systems engineered for marine-influenced climates, with proper underlayment and ventilation to prevent condensation on the underside. Metal costs more upfront. On some Aloha homes, it pays for itself in avoided maintenance.
New Construction
Building new in Aloha’s remaining pockets of undeveloped land? We spec roofs for the actual conditions - not a generic Portland plan set. That means enhanced ventilation for tree-shaded sites, ice-and-water shield well beyond code minimums, and Washington County permit packages submitted correctly the first time.
Tile Roofing
Boral clay and concrete tile suits the occasional custom home or renovation in Aloha where weight-bearing capacity and long-term aesthetics align. We assess structure before quoting - tile is heavy, and Aloha’s 1970s trusses weren’t always built for it. No surprises after tear-off.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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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 Aloha
We’re authorized installers for GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral - seven manufacturer lines, no substitutions. For Aloha customers, that means we stock common shingle colors and accessories locally, not ordered from a warehouse two states away. A moss-damaged roof doesn’t wait three weeks for matching Timberline HDZ in Barkwood. We carry it. Most replacements move from estimate to completion in under two weeks, permit timing included.
Common Roof Replacement & Installation Problems We See in Aloha Homes
- Skipping Washington County permits. Out-of-area crews often assume city permitting applies, leading to stop-work orders and days of rework. Aloha is unincorporated - only Washington County’s building department has jurisdiction, and we know their inspectors by name.
- Neglecting moss remediation before new shingles. Aloha’s persistent dampness causes hidden rot under old moss that new roofs simply cover up, voiding warranties. We remove every trace, treat the deck, and let it dry before underlayment touches wood.
- Under-ventilating low-pitch roofs. Aloha’s tract homes often have minimal attic ventilation; without adding ridge vents and baffles, the new roof traps moisture and fails prematurely. We calculate net free ventilation area for every replacement, not just copy the existing setup.
- Ignoring tree-shaded microclimates. That beautiful Douglas fir you planted in 1987 is now a 40-foot moisture factory aimed at your north slope. We spec algae-resistant shingles and design drainage paths that account for year-round shade, not just summer sun.
Pricing for Roof Replacement & Installation in Aloha, OR
Here’s what we’re seeing in the Aloha market right now:
- Asphalt shingle replacement (standard ranch, 1,500-2,000 sq ft): $8,500-$12,500
- Asphalt shingle replacement (larger split-level or complex roofline): $12,500-$16,000
- Metal roofing (standing seam, comparable footprint): $18,000-$28,000
- Flat/low-slope replacement (workshop, ADU, carport): $4,500-$8,500
- Moss remediation and deck repair (add-on to replacement): $800-$2,400
- Ventilation upgrades (ridge vent, baffles, intake): $600-$1,800
What moves the needle: roof pitch (Aloha’s low pitches help), accessibility (steep driveways off SW Farmington Road add time), layers to tear off, and whether we find rot under the moss mats. The number on our estimate is the number on your invoice. We don’t bait and switch. Call (844) 563-1816 for a free, no-pressure inspection and written quote - we document everything with photos from your roof, not guesses from the curb.
We Also Serve Cities Near Aloha
Our crews work throughout Washington County and beyond. If you’re in Aloha, Bethany, Beaverton, Hillsboro, or Tigard, the same live-answer phone line, same 90-Day Done Right Promise, and same Washington County permit expertise apply. Our Roof Replacement & Installation team travels with fully stocked trucks, so most Aloha-area jobs finish in a single trip once materials arrive.
Serving Aloha, OR - Our Local Coverage Area
We’re based in the Aloha 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 Aloha
Yes - all roofing permits in Aloha are handled by Washington County’s building department, not a city office, because Aloha is unincorporated. We pull these permits routinely and know the inspectors; contractors accustomed to Beaverton or Hillsboro city permitting often file incorrectly and face delays. Call (844) 563-1816 and we’ll confirm your property’s permit path before we quote.
GAF Timberline HDZ or CertainTeed Landmark Pro architectural shingles perform best on Aloha’s aging low-pitch ranches, thanks to enhanced nailing zones and algae resistance that combat our persistent moss and damp conditions. We pair them with ice-and-water shield and proper ventilation upgrades, since the original 1970s specs rarely included either. A free inspection lets us assess your deck condition and tree shading before recommending a specific grade.
We remove all moss and organic growth down to clean sheathing, treat the deck with a non-residual fungicide, and allow adequate drying time before underlayment goes down - skipping this step traps moisture and voids manufacturer warranties. On heavily shaded Aloha homes, we also spec StainGuard-plus shingles and improved ventilation to slow regrowth. The moss won’t win, but we don’t pretend it isn’t coming back without prevention.
Absolutely - we regularly replace flat and low-slope roofs on detached workshops, barns, and outbuildings across Aloha’s larger lots and acreage properties. These structures often need tapered insulation for drainage and heavier-duty membranes than residential specs. We’ll inspect the structure, quote it with your main roof or separately, and handle any Washington County permit requirements that apply.
We add continuous ridge vent paired with soffit baffles on nearly every Aloha re-roof, since the original 1970s-1980s construction typically included minimal attic airflow. Without this, moist marine air stagnates in the attic, accelerating shingle deterioration and risking mold. During replacement, we calculate net free ventilation area to current standards and install intake and exhaust paths that actually move air - not just look like they should.
Written by Pete Navarro, Owner at Ridgeline Roofing Co., serving Aloha and Washington County since 1984.