Cedar shake roof repair and reroofing in Lake Oswego, OR 97034
Lake Oswego homes sit under tall firs and along the lake, and many wear cedar shake, synthetic shake or premium shingle roofs. We repair, restore and replace those roofs with care for the property and the HOA rules. Call (503) 917-5484.
Lake Oswego roofs are often cedar shake, synthetic slate or shake, and high-end architectural shingles on larger homes, many under heavy tree cover. We repair split and cupped shakes, clean moss without damaging the wood, replace worn shake roofs with new cedar or DaVinci synthetic shake, and handle HOA color and material approvals. We answer 24/7 at (503) 917-5484.
Lake Oswego roofs carry more than weather. Big Douglas firs and cedars stand over many lots, dropping needles and limbs and keeping roofs shaded for most of the year. Lakefront and canal homes add damp air and limited access, and hillside streets in the First Addition, Forest Highlands and Palisades areas bring steep driveways and tight work space. Many homes here were built or remodeled with cedar shake or premium roofing, which rewards careful hands and punishes shortcuts.
We repair and replace those roofs with the details that matter on a high-end home. On cedar shake, that means replacing split shakes with matched widths, keeping the keyway spacing, and never pressure washing the wood. On replacements, we offer new cedar shake, DaVinci synthetic shake and slate, standing seam metal and heavyweight architectural shingles, each laid over synthetic underlayment with ice and water shield in valleys and copper or painted steel flashing. We answer 24/7 at (503) 917-5484.
Lakefront homes, old cedar roofs and wooded hillsides
Homes around Oswego Lake and its canals range from mid-century lake houses to large remodeled and newly built homes, often with complex rooflines, dormers, skylights and decks over living space. Close to downtown and the First Addition neighborhood, you'll find older cottages and bungalows mixed with newer infill. In the hills, neighborhoods like Forest Highlands, Westlake and Palisades hold 1970s to 1990s homes, many of them originally built with cedar shake roofs that have since been replaced or are due now.
Tree cover is the defining feature of Lake Oswego roofing. Firs, cedars and bigleaf maples keep roofs damp, load gutters and valleys with debris and feed thick moss on shake and shingle alike. Tryon Creek State Natural Area and George Rogers Park bring forest right up to many backyards. Numerous neighborhoods have HOAs with rules on roof materials and colors, and some require approval before a shake roof can be changed to a different product.

What wears out a Lake Oswego roof under all those trees?
Moss and rot on cedar shake
Shaded shake roofs stay wet and grow moss, which holds water in the grain until the shakes soften and rot. We remove moss by hand, treat the wood with a soft wash and replace shakes that have lost their strength.
Split, cupped and missing shakes
Older shakes crack along the grain and cup as they weather, opening gaps that let rain reach the underlayment. Wind and falling branches knock some loose entirely. We replace them one by one, matching width and exposure.
Debris-packed valleys and gutters
Fir needles and maple leaves fill valleys and gutters fast here, forcing water sideways under the roofing. We clear valleys, open the gutters and install gutter guards fine enough for needles.
Skylight and dormer leaks
Lake Oswego homes often have several skylights and dormers, each a place where flashing can fail. Old curb skylights and caulked dormer walls are common leak sources, and we reflash them with step flashing and counterflashing.
Roofing services in Lake Oswego
These services fit the shake, synthetic and premium roofs most common in Lake Oswego, along with the tree debris that comes with them.
Cedar Shake Repair & Restoration
A shake roof with moss in the gaps, a few split pieces and gray, tired wood often has years left in it. We repair and restore existing cedar roofs in...
Cedar Shake Roofing
Few roofs suit an old Portland house like real western red cedar. We install new shake roofs that look right on Craftsman, Tudor and lodge style...
Synthetic Slate & Shake Roofing
Want the look of slate or cedar without the weight, the splitting or the yearly moss fight? Composite slate and shake give Portland homes that...
Roof Moss Removal
Moss on a Portland roof is almost a given under the firs. We take it off by hand and brush, treat what is left and add zinc so it grows back slower.
Metal Roofing
Metal roofs shrug off the things that wear Portland roofs down: constant rain, moss, fir needles and wind. We install standing seam and ribbed metal...
Skylight Repair
Skylights bring welcome light into Portland homes through the gray months, but they are also a hole in the roof. Most skylight leaks come from the...
Gutter Guards
Not every gutter guard can stop Douglas fir needles. We fit Portland homes with guards matched to the trees overhead, so gutters keep flowing through...
Fallen Tree Roof Repair
A fir limb or whole tree on a Portland roof is a framing problem as much as a roofing problem. Rafters, ceiling joists and decking often need...

How we protect a Lake Oswego property during roof work
Many Lake Oswego homes have steep driveways, tight lakefront lots or stone patios and gardens close to the walls. We plan the material drop and debris route before the first shake comes off, lay plywood over pavers and use netting and tarps to keep debris out of the lake or canal. HOA neighborhoods often need material and color approval, so we provide product sheets and samples. After an on-roof look, you receive a written estimate that spells out every material and detail.
Roofing questions from Lake Oswego
Can my Lake Oswego cedar shake roof be repaired instead of replaced?
Often, yes. If most of the shakes on your Lake Oswego roof are still solid and the problems are moss, scattered splits and a few missing pieces, a repair and cleaning can add years. When shakes are thin, soft or curling across most of the roof, replacement with new cedar or synthetic shake is the better value.
Is synthetic shake allowed in Lake Oswego HOA neighborhoods?
Many associations approve synthetic shake such as DaVinci because it holds the look of cedar, but rules vary by neighborhood. We give you product sheets, color samples and photos of installed roofs to submit to your Lake Oswego HOA board, and we schedule the job once you have their approval.
How do you clean moss off a Lake Oswego shake roof without damage?
We never pressure wash cedar shake, because it strips the wood fibers and shortens the roof's life. On Lake Oswego roofs we remove moss with hand tools, apply a soft wash treatment that kills what remains and install zinc or copper strips near the ridge to slow new growth.
What does a shake roof replacement cost in Lake Oswego?
New cedar shake on a typical Lake Oswego home often runs about $34,800 to $61,900 in 2026, and synthetic shake usually lands in a similar or slightly higher range depending on the product. Size, pitch, access and skylights all matter. These are typical ranges, not a quote; your price follows an on-roof look and a written estimate.
Nearby places we roof
Roof trouble in Lake Oswego?
Call and describe what you are seeing. We answer 24/7 and send a roofer as soon as one is free.