Garden Window Replacement in Portland, OR
Leaky Kitchen Garden Windows Replaced. Insulated Glass Top, Working Side Vents, a Shelf That Stays Dry. Flashed and Supported Right. Licensed OR #241979.
A garden window is a small glass box that projects out from the wall, most often over a kitchen sink. It has a glass top that slopes down and away from the house, a fixed front pane, side vents that open to let in air, and an interior shelf for herbs and plants. Done well, it brings in far more light than a flat window of the same size and gives the kitchen a little extra depth.
Many garden windows in Portland-area homes were installed in the 1980s and 1990s with aluminum frames, and many of them are now leaking at the top, dripping condensation onto the shelf, or have vents that no longer open. VResh replaces old garden windows with new insulated units, and because a garden window sticks out from the wall, we pay as much attention to the flashing at the top and the support beneath it as to the window itself. If you would rather go back to a flat window, we can do that too. For other window types, see our window replacement and installation page.
(503) 272-6436 — Call or Text, Available 24/7
We answer calls and texts at any hour. For storm damage, active leaks, or structural emergencies, calling directly is the fastest path to a response.
Why Garden Windows Work for Portland Kitchens
01. More Daylight Over the Sink
A garden window collects light from the front, both sides, and the sky above, so it brightens a kitchen far more than a flat window in the same opening. That matters in Portland, where gray skies settle in from fall through spring, and many kitchens sit on the shaded side of the house or face a neighbor across a narrow side yard. The sink is where people spend a lot of time in the kitchen, and a garden window puts the brightest light right where you are working, without changing the size of the opening in the wall.
02. A Place for Herbs and Plants Year-Round
Basil, parsley, and spring seedlings struggle outdoors through Portland's cool, wet months, which cover a good part of the year. A garden window gives them a bright, sheltered shelf within arm's reach of the stove. The sloped top glass lets in overhead light that a flat window cannot, and the shelf keeps pots off the counter. With a new insulated unit, the shelf also stays warmer in winter and drier year-round, so plants do better, and the frame is not sitting in runoff from condensation.
03. Ventilation Right Where the Steam Is
Cooking and dishwashing put steam and odors into the air at the sink, and in a closed-up winter house that moisture has to go somewhere. The side vents on a garden window open right at the source, working alongside the range hood. Because the vents face sideways and sit under the projecting top, they can often stay cracked during light rain without water coming in. On dry summer evenings, opening both side vents pulls a cross-breeze through the kitchen without opening a door.
04. Extra Depth in a Small Kitchen
A garden window projects out from the wall, so the space over the sink feels larger, and there is room on the sill and shelf for dish soap, a small plant, or a few cookbooks instead of crowding the counter. In the compact kitchens common in Portland's older bungalows and mid-century ranches, that added depth makes a real difference. It also adds a small detail to the exterior of the house that breaks up a long, flat wall, which many homeowners like on the side of the house they see most.
Garden Window Options
FeatureYour Choices and What We Recommend
Frame material
Vinyl is the most common frame for replacement garden windows: it insulates well, does not require paint, and suits wet locations over sinks. Fiberglass and wood versions are less widely made. We check what is available for your size and style before quoting.
Top glass
Insulated glass, sloped to shed water. The top is usually tempered or laminated safety glass, and low-E coatings help control summer heat gain through the sky-facing pane. We confirm the glass spec for each unit.
Side vents
Operable vents on one or both sides, most often crank-out casements, with screens. Two vents allow cross-ventilation; one vent and one fixed side costs a bit less. Choose the vent side based on where the faucet handle sits, so the crank is easy to reach.
Front glass
A fixed pane facing out, which carries most of the view. Obscure or textured glass is an option if the window faces a neighbor or the street. Low-E glass on the front helps on south- and west-facing kitchens.
Shelf
A glass or solid shelf partway up the box. Glass shelves let light reach the sill; solid shelves hold heavier pots. Ask about the shelf's weight rating if you plan to keep large planters on it.
Projection and size
Garden windows usually project about 12 to 18 inches from the wall, depending on the model. The unit is sized to the existing rough opening, when possible, which keeps the job simpler and avoids reframing.
Flat-window alternative
If you no longer want a projecting window, we can install a flat casement, sliding, or picture window in the same opening and patch the siding. Some homeowners choose this to simplify cleaning or clear a narrow side yard.
Several manufacturers build replacement garden windows, mostly in vinyl. Vlad will tell you which products fit your opening and budget at the estimate, and our window materials guide explains the frame options in more detail.
Garden Window Replacement — What the Project Involves
Signs Your Garden Window Needs Replacing
Leaks at the Glass Top
The top of a garden window is sloped glass, so it takes rain more directly than any vertical window, and in a city with about 37 inches of rain a year, that adds up. On older units, the seal between the top glass and the frame breaks down, and the flashing where the box meets the wall was often minimal. Water then shows up as drips on the shelf, stains on the ceiling of the box, or soft wood in the wall below. Resealing buys time, but a failing frame usually needs to be replaced.
Condensation and Mildew on the Shelf
Older aluminum garden windows have no thermal break and often single-pane or early double-pane glass. In winter, warm, humid kitchen air condenses on the cold metal and glass and runs down onto the shelf. Plants, wet soil, and a sink right below add more moisture. The result is black mildew in the corners and water damage at the sill and countertop.
Vents That No Longer Work
On older units, cranks strip, hinges corrode, and screens tear. When the vents are stuck, and the frame is aging too, replacing the whole unit usually makes more sense than chasing discontinued parts. If the frame is sound and only a crank has failed, our window repair team can check whether a part is still available.
Flashing and Supporting a Projecting Window
A garden window is a small addition hung on the wall, and it has to shed water and carry weight like one. The same principles apply to bay and bow windows; our bay window replacement page covers projecting-window flashing on a larger scale.
The Top: Shedding Water Away From the Wall
Rain that hits the wall above runs down onto the box. The head flashing has to catch that water and carry it out over the top of the unit, and it must be lapped under the housewrap or building paper above, not caulked on top of the siding. Caulk alone looks fine on day one and fails within a few winters.
The Bottom: Draining What Gets Past
No window seal is perfect forever. The sill pan under a garden window is the backup that keeps water out of the wall framing and away from the countertop and cabinets below. We slope it to the outside and leave it open at the front edge so it can drain.
Support: Carrying the Load
A glass garden window, plus a shelf of potted plants, puts steady pressure on the front of the frame. Smaller units are typically designed to hang from the framing of the opening. Larger units, or walls with damaged framing, may need extra support. We follow the manufacturer's requirements and check the framing before setting the unit.
The Siding Joint
Where the box meets lap siding, shingles, or stucco, the trim and flashing have to work with the siding, not against it. On older homes, we often replace a few courses of siding around the opening so the new flashing laps correctly and the patch blends in.
Client's Talk
Serving Portland Metro Area
VResh Construction provides window replacement, siding installation, roofing, dry rot repair, and full exterior renovation services throughout the Portland metro area and Southwest Washington.
Portland Metro — Oregon
- Portland, OR
- Oak Grove, OR
- Cedar Mill, OR
- King City, OR
- Happy Valley, OR
- Clackamas, OR
- Milwaukie, OR
- Gresham, OR
- Wood Village, OR
- Scappoose, OR
- Sandy, OR
- Newberg, OR
- Estacada, OR
- Lake Oswego, OR
- Beaverton, OR
- Hillsboro, OR
- Tigard, OR
- Sherwood, OR
- West Linn, OR
- Oregon City, OR
Southwest Washington
Extended Service Areas
Garden Window FAQs — Portland Homeowners
How much does garden window replacement cost in Portland, OR?
Most garden window replacements cost about $1,500 to $4,000 installed in the Portland area, depending on size, frame material, glass options, and the number of vents you choose. Large or wood units run higher. Rot repair, siding patches, and backsplash work are priced separately. Your written estimate itemizes each of these after Vlad measures.
Can a leaking garden window be repaired instead of replaced?
Sometimes. If the frame is sound and the leak is a failed sealant joint or a single bad glass unit, a repair may be enough. If the frame is old aluminum, the vents are failing, and there is water damage, replacement is usually the better use of money.
Why is there water on my garden window shelf in winter?
On older units, it is usually condensation. Warm, moist kitchen air hits the cold frame and glass, condensing. Running the range hood while cooking and opening a vent help, but single-pane glass and uninsulated aluminum frames will still cause sweating. If the water appears during rain instead, it is likely a leak at the top or sides and should be checked soon.
Can I replace my garden window with a regular flat window?
Yes. We remove the garden window, install a flat window in the same opening, and patch the siding and interior trim. We can price both options in the same estimate so you can compare.
Can you add a garden window where I have a flat window now?
Often, yes. Most garden windows fit an existing opening. Check outdoor clearances first, since the box projects from the wall and should not block a walkway, gate, or deck. If the opening has to be enlarged, a permit may be required; Vlad confirms what applies at the estimate.
How long does garden window replacement take?
The window itself is typically built to order, so allow several weeks for delivery. Installation usually takes one day, longer if we find rot or need to rework the siding. We plan the work to keep your kitchen sink out of service for as little time as possible.
Is the glass top of a garden window hard to clean?
The inside is easy to reach from the counter. The outside of the top glass collects leaves and pollen; a soft brush on a pole or a hose rinse from the ground handles most of it. Keep gutters above the window clean so they do not overflow onto it.
Do new garden windows help with energy bills?
They help with comfort more than anything else. Replacing an old aluminum unit with insulated low-E glass and an insulated frame stops the cold draft over the sink and reduces summer heat. Some window upgrades may qualify for incentives; see our guide to window rebates for Portland and Vancouver utilities.
Get a Free Window Estimate
Vlad comes out, measures the opening, checks the framing and flashing around your old garden window, and gives you a straight written quote with a delivery estimate. No sales pressure and no commitment required.
- Same-day response on all estimate requests
- No commission-based sales, just honest quotes
- Licensed OR #241979 · WA #VRESHCL776ND
- EPA Lead-Safe Certified for pre-1978 homes
- Sill pan and head flashing on every installation
