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Old windows cost you twice, once on the heating bill and again when the water they let in rots the framing around them. New windows seal the house, quiet the street, and change the look of every room, but only when they are installed with the flashing and trim details that keep Portland rain out of the wall. Homeowners across the metro area have trusted LADA Exteriors with window replacement since 1997 because the company treats a window as part of the building envelope, not a hole in it.
Call 503-860-6660 for Your Free Window Estimate
Family owned since 1997. Licensed in Oregon and Washington. Milgard fiberglass and vinyl windows installed to manufacturer specifications. Financing available.
Signs Your Portland Home Needs New Windows
Windows rarely fail dramatically. They get harder to open each year, the seals between the panes give out and leave a permanent fog, drafts show up along the sash in January, and the sill or the trim below starts to feel soft when you press on it. Inside, condensation pools on the glass every cold morning and the paint on the frame keeps peeling no matter how often it is touched up.
The damage you cannot see is the expensive part. Most window leaks do not come through the glass. They come through the gap between the window and the wall where flashing was never installed or was installed wrong, and water running down behind the siding rots sheathing and studs for years before a stain ever shows inside.
An inspection tells you whether you are looking at a worn-out window, a failed installation, or both. Sometimes a single window needs replacing and the rest of the house is fine. Often the original builder-grade windows are all the same age and replacing them together saves money and gives you one warranty and one project.
Milgard Windows We Install in the Portland Metro Area
We install Milgard windows and patio doors, built in the Pacific Northwest for this climate and backed by one of the strongest warranties in the industry. The right series depends on the style of your home, how much maintenance you want, and your budget.
Milgard Ultra Series Fiberglass Windows
Fiberglass is the premium choice. The Ultra Series frames are strong enough for large openings and narrow sightlines, hold paint, resist warping and swelling through Portland’s wet winters, and expand and contract at the same rate as glass so the seals last longer. They suit modern homes and any project where the window itself is meant to be a design feature.
Milgard Tuscany, Trinsic, and Style Line Vinyl Windows
Vinyl is the value choice and the most popular window we install. The Tuscany Series offers a traditional profile with a full range of styles and colors, the Trinsic Series gives a clean contemporary look with maximum glass area, and the Style Line Series is a slim-frame option that fits budget-conscious projects without giving up energy performance. All three are low maintenance and never need painting.
Patio Doors and Sliding Glass Doors
A worn sliding door leaks air and water the same way a bad window does. We replace sliding and French-style patio doors with Milgard units that match the windows, with the same flashing and sill-pan details underneath.
Window Leak Repair and Flashing Correction
When the window is sound but the installation around it has failed, we remove the trim, correct the flashing and weather-resistive barrier, and reinstall the trim and sealant so the opening drains the way it should. Because we also handle siding, we can open the wall, repair any rot we find, and close it back up so the patch disappears. Window leaks tied to original construction are a common part of our construction defect repair work.
Why Portland Homeowners Choose LADA Exteriors for Window Replacement
A good window installed badly leaks. A great window installed well lasts for decades. The difference is in the details most homeowners never see once the trim goes on.
Double Flashing and a Proper Drainage Gap on Every Window
Every window we install gets double flashing across the head and a quarter-inch gap between the window and the trim. That gap holds a backer rod so the sealant bonds properly and flexes with the seasons instead of cracking in the first winter.
Full-Dimension Cedar Trim and Uncut Nailing Fins
We trim windows with 5/4 by 3 pre-primed cedar installed over the window fin, never by cutting the fin to make the trim fit. The fin is what ties the window to the weather barrier, and cutting it is the single most common shortcut behind window leaks in this region.
Siding, Flashing, and Windows Handled by One Crew
Most window companies stop at the frame and leave the wall to someone else. Our crews handle the weather barrier, flashing, trim, and siding around the opening, so there is no gap in responsibility where water gets in. Many homeowners replace windows during a siding replacement so the whole wall is done once, correctly.
Finished and Painted, Not Left for You to Figure Out
New trim is primed and ready for paint when we leave, and our exterior painting crew can finish it to match the house so the project is complete when the last window goes in.
Rated Among the Top Window Replacement Contractors in Oregon
Nearly three decades of exterior work across the Portland metro area has taught us that a window project is judged ten winters later. Homeowners from Hillsboro to Oregon City and north into Vancouver call us back because the windows still seal and the walls behind them are still dry.
- Family owned exterior contractor serving Portland since 1997
- Licensed, bonded, and insured in Oregon (CCB #126473) and Washington
- Milgard fiberglass and vinyl windows installed to manufacturer specifications
- EPA Lead-Safe Certified Firm for window work on pre-1978 homes
What to Expect From Your Window Replacement Project
Step 1. Free In-Home Estimate
We measure every opening, check the existing trim and siding for signs of water damage, and talk through operating styles, grids, and colors. You get a written, itemized estimate, not a pressure pitch.
Step 2. Window Selection and Ordering
Once you choose a series, we confirm sizes, finishes, glass packages, and hardware and place the order. Milgard builds each window to your measurements, and we schedule installation around the delivery date.
Step 3. Removal, Flashing, and Installation
The old window comes out, the opening is inspected and any rot repaired, the sill pan and flashing go in, and the new window is set, fastened, and trimmed. Most homes are finished in one to two days depending on the number of openings.
Step 4. Sealing, Final Walkthrough, and Warranty
Sealant goes on over the backer rod, every window is operated and locked in front of you, and we hand over the Milgard warranty along with our own workmanship warranty. The job is not done until you say it is.
Window Replacement Contractors Serving Portland, Beaverton, Hillsboro, and Beyond
Our crews work throughout the Portland metro area and across the river in Southwest Washington. Homeowners in Portland, Beaverton, Hillsboro, Tigard, Lake Oswego, Tualatin, Sherwood, and Vancouver call on us for window replacement, patio doors, and window leak repair, and we regularly take on projects in Wilsonville, Oregon City, Gresham, and Happy Valley as well.
Frequently Asked Questions About Window Replacement in Portland
How Much Does Window Replacement Cost in Portland?
Window replacement is priced per project, and the biggest factors are the number of windows, their sizes, fiberglass versus vinyl, the operating style and glass package, and whether any rot or flashing problems turn up once the trim comes off. Vinyl sits at the lower end of the range and fiberglass higher, and replacing all the windows at once costs less per opening than doing them a few at a time. Every estimate is free, itemized, and based on measurements of your actual home.
How Long Does It Take to Replace Windows?
Most homes are finished in one to two days of on-site work once the windows arrive. Lead time from order to delivery varies by series and season, and we give you a schedule up front.
Fiberglass or Vinyl, Which Is Better for a Portland Home?
Both perform well here. Vinyl costs less and never needs painting, which is why it is the most common choice. Fiberglass is stronger, holds paint, allows larger openings with thinner frames, and tends to last longer, so it makes sense for higher-end homes and large windows.
Will New Windows Lower My Heating Bills?
Yes. Replacing single-pane or failed double-pane windows with modern low-E glass noticeably reduces heat loss in winter and heat gain in summer, cuts drafts, and reduces fading on floors and furniture. The exact savings depend on how many windows you replace and what you are replacing.
Do You Pull Permits for Window Replacement?
Permits are required for some window projects in the Portland area, particularly when openings change size or egress is involved, and we handle the application and inspections whenever one is needed.
What Warranty Comes With New Windows?
You receive the Milgard product warranty, among the strongest in the window industry, plus our written workmanship warranty covering the installation itself. Warranty terms are reviewed with you in writing before the project starts.
Get a Free Window Replacement Estimate From Portland’s Trusted Exterior Contractor
If your windows fog, stick, or let the January wind through, or the trim below one of them has gone soft, the problem grows with every rainy season. An in-home estimate takes about an hour, costs nothing, and ends with a written proposal and a straight answer on whether you need one window or a whole house. Request your free estimate or call 503-860-6660 to get on the schedule.