Roof replacement for Portland homes, start to finish
When patches stop holding and the shingles are bare, curling or shedding granules, a full reroof is the smarter spend. We replace Portland roofs from tear-off to final magnet sweep, with the decking and flashing done right underneath.
A roof replacement in Portland is a full tear-off of the old roofing down to the deck, replacement of any rotted sheathing, new synthetic underlayment with ice and water shield at eaves and valleys, new drip edge and flashing, and the finished roof material. Architectural asphalt on a typical Portland home commonly runs about $14,180 to $31,960; metal, cedar shake and synthetic slate cost more.
Most Portland homeowners start thinking about a new roof after a winter of small leaks, a moss problem that keeps coming back, or a home inspection that flags the roof as near the end of its life. The hard part is not deciding that the roof is tired. It is knowing what a replacement should include, what the right material is for your house, and how to compare estimates that look nothing alike on paper.
A reroof is really several jobs stacked together: demolition, carpentry, waterproofing, sheet metal, ventilation and the visible roof surface. Each layer matters. A beautiful new shingle installed over soft decking, reused flashing or a starved attic will fail early. We plan every replacement layer by layer, walk you through each choice before work begins, and keep the house dry during the project. Call (503) 917-5484 to set up a visit and a written estimate.
Choosing the right material for your new roof
The best material depends on your budget, how long you plan to stay, the roof pitch and how the house looks from the street.
Architectural asphalt shingles
The most common choice in Portland for good reason. Layered shingles from Malarkey, GAF, Owens Corning or CertainTeed handle our rain well, come in algae-resistant versions and give the best value for most homes.
Standing seam or ribbed metal
Metal sheds rain and fir needles quickly, resists moss and lasts far longer than asphalt. It costs more upfront and suits modern homes, cabins in the foothills and owners planning to stay many years.
Cedar shake
Hand split or sawn cedar shakes give older Portland homes a classic textured look. They need more upkeep in our climate, including moss control and periodic treatment, but nothing else looks quite like real wood.
Synthetic slate or shake
Composite products like DaVinci mimic slate or shake with less weight and almost no maintenance. They are a strong fit for historic districts and homeowners who want the look without rot or splitting.
When is it time to replace instead of repair?
One sign alone rarely decides it, but two or three together usually mean repairs have stopped being good value.
Repairs keep stacking up
If you have paid for leak repairs in more than one spot over the last few winters, the roof is failing as a system. Money spent on a fourth patch is often better put toward a reroof.
Granules filling the gutters
Asphalt shingles shed their stone granules as they age. Heavy granule piles at downspouts and bare black patches on the roof mean the asphalt is now exposed to sun and rain directly.
Curling, cupping or cracked shingles
Shingle edges that curl up or crack across the tab no longer seal down. Wind gets under them, and the January 2024 ice storm showed how quickly loose shingles strip off in a bad event.
Two layers already on the roof
Many older Portland homes have a second layer of shingles laid over the first. A third layer is not an option, and the extra weight and trapped moisture make tear-off the only sound path.
Wavy rooflines or soft decking
Sags and soft spots point to deck damage below the shingles. That wood has to be replaced, which means the roofing over it comes off anyway, often making a full replacement the better plan.
Selling or buying a home
Buyers and lenders look hard at older roofs. A new roof can smooth a sale, while a roof flagged as failing during inspection often turns into a price reduction bigger than the reroof itself.
What happens during a full reroof with us
Inspection and written scope
We measure the roof, check the attic for ventilation and moisture, count layers, look at every penetration and note decking concerns. The written estimate lists the material, underlayment, flashing work and per-sheet decking price line by line.
Protect the house and yard
Before tear-off, we set tarps over plants and patios, lean plywood over windows and AC units, and park a dump trailer or bin where it suits your driveway. Attic belongings near the eaves should be covered too.
Tear off to bare deck
Every layer of old roofing, underlayment and nails comes off. We inspect the exposed sheathing, replace rotted boards, re-nail loose panels and correct any plank gaps so the new roof has a sound, flat base.
Underlayment, ice shield and metal
Self-adhering ice and water shield goes along eaves, in valleys and around chimneys and skylights. Synthetic underlayment covers the rest. New drip edge, step flashing, counterflashing and pipe boots replace the old metal rather than reusing it.
Install the new roof system
Starter strip, field material, hip and ridge caps go on following the manufacturer nailing pattern for our wind zone. Ridge vents or roof vents are balanced against soffit intake so the attic breathes properly.
Cleanup and final walkthrough
We sweep the yard and driveway with rolling magnets for nails, clear the gutters of debris, haul off every scrap and walk the finished roof with you. You get photos of the deck, underlayment and flashing stages.
Materials for roof replacement come from manufacturers such as Malarkey, GAF, Owens Corning, CertainTeed, Carlisle and Velux, chosen for the job rather than the logo.
How much does a new roof cost in Portland in 2026?
Most reroofs are priced per square, which is 100 square feet of roof. The ranges below are for a typical Portland single family home of about 1,700 to 2,400 square feet of roof.
| Work | Typical Portland range |
|---|---|
| Architectural asphalt shingle reroofper home | $14,180 to $31,960 |
| Standing seam metal reroofper home | $31,420 to $63,740 |
| Cedar shake reroofper home | $34,860 to $68,910 |
| Synthetic slate or shake reroofper home | $37,640 to $74,320 |
| Extra layer tear-offper layer | $1,180 to $3,460 |
| Decking replacementper 4x8 sheet | $92 to $138 |
These are typical 2026 Portland ranges, not a quote. Your real price comes after we measure the roof, check the attic and decking, and give you a written estimate.
What moves the price:
- Roof size and number of squares
- Pitch, height and walkability
- Layers to tear off
- Chimneys, skylights and valleys
- Decking replacement needed
- Material and color line chosen
Planning a reroof around Portland weather and houses
Summer is the busiest reroof season because it is dry, but we replace roofs all year in Portland. During the wet months we tear off only what we can dry in that same day, then cover the deck with underlayment before rain returns. Many homeowners in Mount Tabor, Rose City Park and Richmond schedule fall or winter replacements to get on the calendar sooner, and the roofs perform the same. Shingles do need mild temperatures to seal, so we watch the forecast closely on cold days.
Portland housing makes every reroof a little different. Craftsman bungalows have low dormers, deep overhangs and chimneys with old mortar flashing. Foursquares in Irvington and Laurelhurst have steep hip roofs that need roof jacks and harness anchors. Hillside homes in the Southwest Hills often have tight access where every bundle gets carried in by hand. Out in Beaverton and Tigard, 1990s tract homes with concrete tile or tired three-tab shingles are common replacement candidates.
Why a reroof with us stays tight for the long haul
New metal, not reused flashing
Old step flashing and pipe boots are where most new roofs start to leak. We replace them on every reroof, so the weak points get the same fresh start as the shingles.
Ventilation balanced every time
We calculate intake and exhaust for your attic and correct what is missing. A balanced attic keeps the deck dry through Portland winters and helps the shingles last longer.
Clear line items to compare
Your estimate breaks out tear-off, decking, underlayment, flashing, ventilation and material so you can compare bids on equal terms and see exactly what you are paying for.
A dry house during the work
We open only what we can cover the same day, keep tarps staged on site, and answer the phone around the clock at (503) 917-5484 if a storm arrives mid-project.
Roof Replacement questions from Portland homeowners
How long does a roof replacement take on a Portland home?
A typical single family asphalt reroof takes two to four working days. Steep roofs, multiple layers, extensive deck repairs or heavy rain can add time. Metal, cedar shake and synthetic slate roofs usually take longer, often one to two weeks, because the materials need more careful cutting and fitting.
Can a roof be replaced in Portland during the rainy season?
Yes. We work in sections, tearing off only what can be covered with underlayment the same day. On heavy rain days we pause and keep the roof dried in. Shingles need moderately mild temperatures to seal, so very cold stretches may shift the start date by a few days.
Do I need to be home during my roof replacement?
You do not need to stay home, but we ask that someone be reachable by phone. The work is loud, and pictures on walls can rattle, so many people take down fragile items. Cars should be out of the driveway so the dump trailer and material delivery have room.
Should I replace gutters at the same time as my new roof?
If your gutters are old, sagging or undersized for the fir needles your trees drop, it is a good time. The drip edge and gutter apron tie together at the eave, and doing both together avoids disturbing new roofing later. Sound gutters can stay and be cleaned out.
What happens if you find rotted decking during my reroof?
We show you photos of the damage, replace the rotted sheets at the per-sheet price written into your estimate and keep going. Because the price is agreed before work starts, you know the cost of each sheet in advance and the project does not stall waiting on a decision.
Which roofing material lasts longest in the Portland climate?
Standing seam metal and synthetic slate generally outlast the others because moss struggles to hold on and the materials do not absorb water. Quality architectural asphalt performs well too, especially algae-resistant lines with good attic ventilation. Cedar shake can last a long time with regular care.
Where we do this work most
We cover the whole metro. These are the places we are on roofs most often:
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Related reading
Repair or Replace Your Roof in a Wet Climate?
A leak, a few missing shingles or a roof that just looks tired raises the same question. This guide walks Portland homeowners through the evidence that points toward repair and the evidence that points toward replacement.
Roof Replacement Cost in Portland for 2026
Typical 2026 price ranges for replacing an asphalt, metal or cedar roof in the Portland metro, what each line on an estimate pays for, and the factors that push a number up or down.
Need roof replacement in Portland?
Call and tell us what you are seeing. We answer 24/7 and can usually talk you through the next step on the first call.