Roof Replacement Portland Oregon
Portland, Oregon Roof Replacement
A new roof is one of the biggest things you will buy for your home. You should know what you are paying for and why. We do full tear offs, we fix what is wrong underneath instead of covering it up, and we tell you what your roof actually needs. Sometimes that means you do not need a new roof yet.
The Problem Is Usually Not Just the Shingles
Shingles are the part you can see. They are rarely the whole story.
We often pull off an old roof and find the real problem underneath. Bad ventilation that cooked the shingles from below. A valley that was framed so debris packs into it. Gutters that sit wrong against the wall. Decking that was covered over instead of repaired.
If we put a new roof on top of those problems, you get a new roof with the same old problems. So we look at the whole system, we show you photos of what we find, and we tell you what it will take to fix it.
Ventilation
Poor ventilation traps heat and moisture in the attic and can shorten the life of the roof from underneath.
Decking
A full tear off lets us see damaged, rotten, or poorly repaired decking instead of covering it again.
Water Control
Valleys, gutters, flashing, walls, and roof penetrations often tell us more about a leak than the shingles themselves.
Portland Roof Replacements
South Portland
Getting Ahead of It
This homeowner did the smart thing. Their roof was in the last third of its life and still working, and they called us for an inspection before anything went wrong.
We checked the roof and the attic. The roof had life left, but the ventilation was poor, which is what shortens a roof’s life more than anything else in our climate. Warm damp air gets trapped up there and slowly breaks the roof down from underneath.
We replaced the roof and fixed the ventilation at the same time. That meant adding edge vents to bring fresh air in at the bottom and improving the exhaust vents to let hot air out at the top. Air moves through the attic now instead of sitting in it. The new roof will last longer because of it.
Southwest Hills
A Leak Nobody Could Find
This home was designed by a well known Portland architect and built with shiplap decking, with the roofing installed straight over it. That was normal for the era.
The last roof was less than ten years old. Whoever installed it sheeted over the shiplap with half inch plywood before roofing. That is a common practice and one we use ourselves. But it raised the height of the roof deck, and this house has shallow custom copper gutters that were original to the home. Once the deck came up, those gutters ended up partly resting against the outside wall.
So every time it rained, water ran down the inside of the wall.
The homeowner had been dealing with this for years without a clear answer for why it was happening. The fix was not simple. We replaced the roof, corrected the gutter and decking height around the whole perimeter, and installed a heavier membrane.
We also reframed a valley that had been collecting debris, so leaves pack out instead of damming up and pushing water sideways under the shingles.
The rain does not come inside anymore.
What a Jobin Roof Replacement Includes
Full Tear Off
A full tear off down to the decking, so we can see and fix what is under there.
Damaged Decking Replaced
Any rotted or damaged decking is replaced before the new roof goes on.
Ventilation Checked
Ventilation is checked and corrected, not just left as is.
New Flashing
Flashing replaced at chimneys, walls, valleys, and skylights.
Malarkey Shingles
Malarkey shingles, made in Portland.
Project Photos
Photos of the work as we go, including what we found underneath.
Full Cleanup
Full cleanup, including a magnet sweep for nails.
Permits Handled
Permits pulled and handled by us.
Portland Roof Replacement Cost
What Does a Roof Replacement Cost in Portland?
Most Portland area homes land between $14,000 and $20,000 for a standard architectural shingle replacement with a full tear off.
Bigger homes, steep or complicated roofs, premium materials, or hidden repairs like rotted decking will push that higher.
We wrote a full guide that breaks down what drives the price and how to compare bids fairly.
Read the 2026 Portland Roof Replacement Cost GuideStandard architectural shingles with a full tear off.
Final pricing depends on roof size, pitch, complexity, material choice, and what we find underneath.Sometimes You Do Not Need a New Roof Yet
A roof problem does not automatically mean the whole roof needs to come off.
We inspect the roof and the attic, show you what we find, and tell you what we would do if it were our house. If a repair makes more sense, we will tell you that.
Jobin Roofing
Licensed in Oregon and Washington
We are based just north of Portland and we work throughout the metro area and Southwest Washington.
Oregon CCB #221810. Washington #JOBINRL824MZ. Licensed, bonded, and insured, with over 150 five star reviews.
Read Client ReviewsPortland Roof Replacement Questions
How long does a roof replacement take?
How do I know if I need a new roof or just a repair?
Can you replace a roof in winter?
Do you handle the permit?
What shingles do you install?
Thinking About Replacing Your Roof?
We will inspect it, show you what we find, and tell you whether replacement makes sense now or whether you still have time.
Get a Free EstimateWashington (360) 952-3998 · Oregon (503) 523-3449