Window Replacement · Portland Metro · OR CCB #255649
Window Replacement& Installation, Portland Metro
One Team, Endless Solutions
OJB Solutions installs replacement and new-construction windows across 20+ Portland metro communities. Every style, every size — properly flashed, fully weatherproofed, and built to handle Oregon's wet winters. Written price before we start.
What's included with every window install
- ✓Free on-site estimate — sill and frame rot inspection included
- ✓Old window removal and disposal
- ✓Frame rot repair before new window installation where needed
- ✓Pan flashing and sill flashing to prevent future moisture intrusion
- ✓Interior and exterior trim reinstallation
- ✓Air sealing and insulation around the rough opening
- ✓Full operation test and final walk-through before we leave
Free estimate + 10% off your first project — book before the end of the month and lock in your price today.
Claim this offer →Window Styles
Every window style. Properly installed.
We install all major window styles in vinyl, fiberglass, and wood-clad frames — sized to your opening and matched to your home's architecture.
Double-Hung
The most common residential window in the Portland metro. Both sashes slide vertically — upper sash lowers for ventilation from the top, lower raises from the bottom. Easy to clean from inside. Standard in most 1960s–90s ranches and colonials across Tigard, Beaverton, and Gresham.
Casement
Hinged on one side, opens outward with a crank. Provides the best air seal of any operable window style — the sash presses against the frame when closed rather than sliding past it. Excellent energy performance for Oregon's cold winters. Common in newer construction and mid-century modern homes in Lake Oswego and West Linn.
Sliding
One or both sashes slide horizontally. A practical choice for wide openings where a casement or double-hung would be too tall — common in bedroom and living room applications. Lower-profile hardware suits contemporary and ranch-style homes. We replace the full unit including the frame track for a clean, tight fit.
Picture & Fixed
Non-operable windows that maximize view and light without ventilation. Used in combination with operable units to create large window walls. Common in West Linn and Happy Valley hillside homes where river and valley views are the priority. The best energy performance of any window style — no operable hardware means no air leakage paths.
Awning
Hinged at the top, opens outward from the bottom. Can stay open during light rain — the sash acts as an awning over the opening. Popular in Pacific Northwest climates for this reason. Often used below picture windows or in bathroom applications. Good energy performance similar to casement style.
Bay & Bow
Projecting window units that extend beyond the exterior wall to create interior shelf space and a wider field of view. Bay windows have three panels at angles; bow windows have four or more in a gentle curve. Common in Victorian-era Portland homes and 1980s–90s colonials across the metro. Structural support and flashing are critical on these — we assess the rough opening carefully before quoting.
Energy Performance
Oregon winters make window performance matter more than most homeowners realize.
Portland gets 36+ inches of rain and consistently cold winters from November through March. Single-pane aluminum windows — still common in Tigard, Gresham, and Milwaukie homes from the 1960s–80s — are essentially thermal holes in your walls. Aluminum conducts cold at roughly 1,000 times the rate of wood or vinyl, and a single-pane glass unit has an R-value of approximately 1 compared to R-3 to R-4 for a modern double-pane low-E unit.
The math is straightforward: replacing single-pane aluminum windows with modern double-pane vinyl in an average Portland home typically reduces heating and cooling costs by 15–25%. On a $2,000 annual energy bill, that's $300–$500 per year — meaningful payback on a window investment that also eliminates condensation on interior sills, reduces outside noise, and removes the draft that makes certain rooms uncomfortable all winter.
We specify Energy Star certified windows for all replacements — the Pacific Northwest has its own climate zone rating that accounts for our mild summers and cold, wet winters. We'll discuss U-factor and Solar Heat Gain Coefficient targets at the estimate based on each window's orientation and exposure.
Glass & Glazing Options
Not all double-pane glass is the same.
The glass package inside your window frame has as much impact on performance as the frame material. Here's what matters for Oregon homes.
Double-Pane Low-E
Standard recommendationTwo panes of glass with a low-emissivity coating that reflects heat back into the home in winter and blocks solar heat gain in summer. Argon or krypton gas fill between panes improves insulation. The right choice for most Portland metro homes — balances performance, cost, and durability well in our climate zone.
Triple-Pane
Cold exposure & elevationThree panes with two gas-filled cavities. Significantly better thermal performance — worth the additional cost for north-facing windows, homes at elevation in Sandy or Estacada where winters are colder, or any application where condensation on interior glass is a persistent problem. Heavier unit — frame and rough opening need to be structurally sound.
Tempered & Safety Glass
Code-required locationsRequired by Oregon code in specific locations: within 24 inches of a door, in windows adjacent to tubs or showers, floor-to-ceiling windows, and any glass within 18 inches of the floor. Tempered glass shatters into small blunt pieces rather than large shards. We identify all code-required safety glass locations at the estimate and specify accordingly.
Our Process
How a window project works with OJB.
From first call to finished install — here's exactly what to expect.
Free on-site estimate
We measure every opening, check sill and frame condition for rot, assess flashing at each window, and discuss performance goals and style preferences. Written price covers window unit, frame repair if needed, flashing, and trim — all-in, no surprises.
Window selection & order
We specify windows sized to your openings, matched to your home's architecture, and rated for the Pacific Northwest climate zone. Lead times vary by manufacturer and style — typically 2–4 weeks for standard sizes, longer for custom dimensions. We confirm the timeline at the estimate.
Frame prep & flashing
Old window removed, rough opening inspected for rot and moisture damage, sill plate and jambs repaired where needed. Pan flashing installed at the sill, sill flashing tape applied, and head flashing integrated with the weather-resistant barrier. The opening is right before the new window goes in.
Install, seal & trim
Window set, shimmed level and plumb, fastened to manufacturer specs. Air sealing and low-expansion foam insulation around the frame. Interior and exterior trim reinstalled or replaced. Full operation test — opens, closes, locks, and seals correctly before we move to the next window.
Ready for a free window estimate?
We check every sill and frame for rot before quoting. Written price. OR CCB #255649.
Why OJB for Windows
Built on trust. Sealed for Oregon winters.
We replace window and frame together — not just the glass
The most common window replacement mistake is inserting a new unit into an old frame with rotted sill plates, failed flashing, and deteriorated jambs. The new window looks fine — until moisture continues to enter through the frame you left in place. We inspect the sill and frame condition at every estimate and replace what's compromised before the new window goes in.
Full opening replacementFlashing done right — every single window
Pan flashing at the sill, head flashing integrated with the weather barrier, and sill flashing tape at the rough opening corners — these details determine whether your new windows stay dry for 20 years or develop moisture problems in 3. We don't skip or rush the flashing sequence. Every window gets the same installation regardless of whether it's visible from the street.
Code-compliant flashing · CCB #255649Energy Star Pacific Northwest specs — not generic national ratings
Oregon has its own Energy Star climate zone with specific U-factor and Solar Heat Gain Coefficient requirements that differ from the rest of the country. We specify windows that meet Pacific Northwest requirements — not just any Energy Star label. For cold-exposure windows in Sandy, Estacada, and elevated lots, we'll discuss triple-pane options where the performance difference is worth the cost.
Climate zone-matched specsReal Reviews
What Portland metro homeowners say.
Window Service Area
We install windows across the Portland metro.
Based in Oregon City, we serve 20+ communities. Click your city for local details — climate zone specs, common window failure patterns by housing era, and what we recommend for your neighborhood.
FAQ
Common window questions.
Fog between double-pane glass means the insulated glass unit (IGU) seal has failed — the inert gas fill has escaped and moisture is condensing inside the gap. In some cases the IGU can be replaced without replacing the full window frame — this is called a glass-pack replacement and is less expensive when the frame itself is still in good condition. However, if the frame is also showing rot, deteriorated weatherstripping, or operational problems, full replacement is the smarter investment. We assess the frame condition at the estimate and give you both options with honest pricing.
An insert replacement (also called a pocket replacement) slides a new window unit into the existing frame, leaving the original frame, sill, and exterior trim in place. It's faster and less disruptive but leaves old framing that may have hidden rot or moisture damage. A full-frame replacement removes everything down to the rough opening — framing, sill, jambs, and all trim — and starts clean. We recommend full-frame replacement for most Portland metro homes where the existing frame is 20+ years old, because it allows proper flashing and ensures nothing compromised stays in the wall.
Quality vinyl windows properly installed with correct flashing typically last 20–30 years in Oregon's climate. The glass seal is the most vulnerable component — IGU seals on well-made windows last 15–20 years before showing condensation failure. Fiberglass-framed windows last longer than vinyl in extreme temperature cycles. The installation quality — specifically whether flashing was done correctly — has more impact on window longevity than the brand. A well-installed mid-grade window outlasts a poorly-installed premium window every time.
Like-for-like window replacement in the same opening generally does not require a permit in most Portland metro jurisdictions. Permits are typically required when you're changing the size of the opening, adding a new window where there wasn't one before, or making structural modifications to the wall. We determine permit requirements at the estimate and handle any necessary applications.
Vinyl is the most popular choice in Oregon — it doesn't conduct cold like aluminum, doesn't rot like wood, and requires no painting. It performs well across the range of Portland metro conditions. Fiberglass is a step up in durability and dimensional stability — it expands and contracts less with temperature changes, which means the seal between frame and glass holds up better over time. Wood-clad windows (wood interior, aluminum or fiberglass exterior) are the premium option for historic homes where interior wood detailing matters. Aluminum is appropriate only in commercial applications — we don't install aluminum in residential homes.
We replace any quantity — one window, two windows, or a full house. Single-window replacements are common when one unit has failed seal or frame damage while the others are still performing. We don't require minimum project sizes. The per-window cost is somewhat higher on very small projects due to mobilization, but we'll give you a straightforward written price regardless of scope.
Yes. Our Oregon CCB license (#255649) covers all construction work including window installation throughout Oregon. We also hold a Washington contractor license (#OREGOJB755C8). We carry full general liability and workers' compensation insurance on every job and can provide proof of coverage before any work begins.