On this page
- The Selling Job: Showing the Buyer Before the Order Is Written
- The Input: One Street Photo of an Ordinary House
- All 15 Renders at a Glance
- Windows: Black Frames Held, the Grille Count Did Not
- Entry Doors: Color Swaps Pass, Glass Patterns Do Not
- Garage Doors: Color Held Every Panel, Board Style and One Count Missed
- The Full Package on Two Different Houses
- How a Sales Rep Uses It in an In-Home Consult
- What It Can't Do
- How to Try the Visualizer on a Customer's House
- Frequently Asked Questions
- Show It on Their House, Then Write the Order
A window, door and garage door visualizer lets a dealer or installer show the new product on the customer's own house before the order is written. We took one ordinary street photo of a two-story house and asked Visualizee, an AI renderer that edits an uploaded photo while keeping what is in it. We asked for new black window frames, three entry doors, three garage doors and the full package, then one package on a second house. Each edit took 28 to 55 seconds. Color swaps on the existing layout held. Every pane or panel count that differed from the usual pattern came back as the usual pattern, so the count check is part of the job.
Quick answer: Take one straight photo of the house from the street, then ask for one product change at a time and list what must stay: camera, siding, roof, the other windows and doors, the light fixture. Color swaps on the same panel layout are reliable. Pane counts, grille patterns, glass strips, panel columns and material styles such as boards versus panels are not: check every one against the order sheet before the customer sees it, and confirm color on the manufacturer's sample.
The Selling Job: Showing the Buyer Before the Order Is Written
The dealer's job at an in-home consult is to get from a measure to a signed order, and the buyer's hesitation is usually not the price of one door but not knowing how it will look on their house. A render of their own house answers that at the kitchen table, before anyone orders a door that cannot be returned.
The volume is there. In the 2026 U.S. Houzz & Home Study, covering work done in 2025, 20% of renovating homeowners did windows or skylights and 17% did exterior doors, with median spends of $7,000 for windows and $3,000 for doors (doors up 50% on the year). Windows are the second most common exterior project after roofing (22%).
The resale argument is there too, and it is the one a rep can quote. The 2025 Cost vs Value Report put garage door replacement first of 28 projects nationally: $4,672 job cost, $12,507 added resale value, 268% of the cost recouped. A steel entry door replacement came second at $2,435 and 216%. Vinyl window replacement recouped 76% on a $22,073 job. Those are national averages, not a promise for this house, but they give the rep an honest answer to "is it worth it?". The question left is which door or window the customer wants, and that is what the render is for.
Our own users point the same way: in one week in October, 88 different Visualizee users asked for windows, entry doors or garage doors in their renders, against 64 who asked for roofing, siding or cladding.
The Input: One Street Photo of an Ordinary House
The input is one straight-on photo of the front of the house, taken from the sidewalk, the way a rep would take it at the measure visit. Ours is a 1990s builder house: grey vinyl siding, a two-car garage on the left with a white raised-panel door, a beige six-panel front door under a small porch roof, and four white vinyl windows.

It is a generated photo (27 seconds, 80 credits), so there is no real address or owner. With a real customer, your own phone photo works: stand back far enough to get the whole facade, shoot straight on, avoid harsh noon shadows. A house like this is easy to check, which is the point: three upper windows, one double window, one front door, one garage door with 32 raised panels in four rows, one wall lantern, one outlet. Every render below was checked against those numbers.
Every edit was made from this one accepted photo, never from a fresh render of the house, and each changed one product at a time. That is the rule from our colorways test and it holds here: one base, one change, one check.
All 15 Renders at a Glance
Four of the 13 edits passed, nine slipped, none needed a retouch for brand text. The passes are the color swaps, the black frames once the camera was pinned, and the full package on the first house. Most slips are counts; one is a material style (boards drawn as panels) and one a covered light fixture.
| Render | Input | What we asked for | Model | Time | Credits | Verdict |
|---|---|---|---|---|---|---|
| House 1 base | Text only | Ordinary two-story house from the sidewalk, no people or signs | Nano Banana 2.1 | 27 s | 80 | Accepted |
| Black frames, try 1 | Base | All four windows to black frames and sashes, same style, no grids | Nano Banana Pro | 55 s | 150 | Slip: whole picture shifted down, camera moved |
| Black frames, try 2 | Base | Same, plus "without moving the camera" | Nano Banana Pro | 28 s | 150 | Pass |
| Grilles | Try 2 | Upper sash of every window in four panes, two by two | Nano Banana Pro | 46 s | 150 | Slip: six panes, three by two |
| Modern flush door | Base | Oak flush door, black bar handle, frosted sidelight on the right | Nano Banana Pro | 53 s | 150 | Slip: sidelight placed over the wall lantern |
| Craftsman door | Base | Walnut, a row of four panes, dentil shelf, two panels | Nano Banana Pro | 46 s | 150 | Slip: six panes in two rows |
| Craftsman door, retry | Base | Same, "exactly four panes in one row, not two rows" | Nano Banana Pro | 55 s | 150 | Slip: six panes again |
| Painted panel door | Base | Six-panel door in glossy navy, brass handle | Nano Banana Pro | 40 s | 150 | Pass |
| Carriage-house garage door | Base | Charcoal, vertical boards, four top windows, black strap hinges and handles | Nano Banana Pro | 30 s | 150 | Slip: grooved panels, not vertical boards |
| Aluminum and glass garage door | Base | Black frame, frosted glass, four rows by five columns | Nano Banana Pro | 34 s | 150 | Slip: four columns, not five |
| Garage door color | Base | Same door and panels, white to cedar woodgrain | Nano Banana Pro | 47 s | 150 | Pass: all 32 panels kept |
| Full package, house 1 | Base | Black windows, navy panel door, charcoal carriage-house door | Nano Banana Pro | 33 s | 150 | Pass |
| House 2 base | Text only | Brick ranch bungalow from the lawn, no people or signs | Nano Banana 2.1 | 34 s | 80 | Accepted |
| Full package, house 2 | House 2 base | Black windows, black door with three glass strips, oak flush garage door | Nano Banana Pro | 33 s | 150 | Slip: four strips, small windows split into pairs, lantern restyled |
| Fix edit, house 2 | Package | Exactly three strips; single-pane small windows | Nano Banana Pro | 29 s | 150 | Slip: still four strips, one window fixed |
The customer photo next to two passing edits and the package, all from the same camera:

The set took 15 renders and 2,110 credits: two house photos at 80 and 13 edits on Nano Banana Pro at 150. We used Pro because the job is changing one product while the rest of the house stays put, and on our six-input benchmark Pro kept the camera on all six inputs where the cheaper model kept it on two. Even so, it moved the camera once here. The two retries and the fix edit are in the total, so the failures are shown with their cost.
Windows: Black Frames Held, the Grille Count Did Not
Black frames are a reliable change once the camera is pinned down; a grille pattern with a named pane count is not. The first black-frame render shifted the whole picture down, the second held, and the grilles came back with six panes per sash where we asked for four.

What we typed for the one that passed, in plain words: "Edit this photo without moving the camera: identical framing, the roof ridge, garage and sidewalk must stay at exactly the same position in the frame. Change only the four windows: black exterior frames and black sashes, same openings, same sizes, same single-hung style, no grids. Everything else stays exactly as in the photo."
The first try had the same request without the camera sentence. The windows were right, but the roof, garage and sidewalk all sat about 1% lower in the frame, which you only see when you flip between the two images. For a before-and-after slider in a proposal, that shift is the difference between "only the windows changed" and "something is off". After adding the sentence, nothing outside the windows moved. The lower window also gained curtains in place of the blinds, which is added context and harmless.
The grilles are the real lesson. We asked for the upper sash split into four panes, two across and two down. The model drew a neat, realistic grille in every window, with six panes, three across and two down.

Six-pane sashes are the common pattern on this kind of house, and the model falls back to the common pattern. That is fine if your customer wants six-over-one. If they ordered a two-by-two prairie or a specific divided-lite layout, the render shows the wrong window, and it looks convincing enough that nobody notices until install day. Count the panes in every render against the order.
Entry Doors: Color Swaps Pass, Glass Patterns Do Not
The painted panel door passed, the modern flush door was right but covered the wall lantern with its sidelight, and the craftsman door came back with six panes twice. Changing the color or finish of a familiar door is safe; adding width or a named glass pattern needs a check.

What we typed for the navy door: "Replace only the front door with a classic six-panel door painted deep navy blue, glossy finish, with a brushed brass handle and lockset. Same door opening, no sidelights, no glass. Keep everything else exactly as in the photo: camera angle and framing, siding, roof, porch roof and post, the light fixture, all four white windows, the white garage door."
Navy six-panel: pass. Same opening, same six-panel layout as the original, lantern and outlet where they were. This is the most common front-door sale there is (a new door in a color), and the most reliable render.
Modern flush door with sidelight: slip. The door itself is right: oak, flush, long black bar handle, frosted sidelight on the right. But a sidelight needs wall space, and the only space to the right of the door was where the lantern hung, so the model put the sidelight over it and the lantern is gone. That is a design question the render answers wrongly by default: on a real job, adding a sidelight means moving the light and reframing the opening, which goes on the quote. Either ask for the lantern to move to the other side, or show the render with that note.
Craftsman door: slip, twice. We asked for a row of four panes over a dentil shelf. Both renders drew a convincing craftsman door with six panes in two rows. The retry spelled it out ("exactly four panes in one row, not two rows") and changed nothing. Like the grilles, six lites is the familiar craftsman pattern, and the model draws the familiar one. If a customer is choosing between a four-lite and a six-lite craftsman door, the render cannot show them the difference.
Garage Doors: Color Held Every Panel, Board Style and One Count Missed
The woodgrain color change kept all 32 raised panels. The carriage-house door got its windows and hardware right but drew panels where we asked for boards, and the aluminum and glass door had four columns of glass where we asked for five.

What we typed for the color change: "Keep the existing garage door exactly as it is, same raised panels, same panel count and layout, and change only its color from white to a warm woodgrain finish in medium cedar brown. Keep everything else exactly as in the photo: camera angle and framing, garage gable and white trim, siding, roof, beige front door, all four white windows, light fixture."
Color change: pass. Four rows of eight panels before, four rows of eight after, trim still white, nothing else on the facade moved. A pixel difference against the base lights up only the door opening, apart from noise in the grass. For a garage door dealer, this is the everyday job: same door, the customer's color or woodgrain.
Carriage house: slip. Charcoal, a row of four windows across the top section, strap hinges and handles that make an overhead door read as swing-out doors: all right. But we asked for a vertical board texture and got recessed raised panels with vertical grooves, the look of a stamped steel door rather than a board-built one. Board versus panel is exactly what a carriage-house buyer is choosing between, so this render cannot show a board door. The count was not the problem here: four windows across the top, the usual layout, came out right.
Aluminum and glass: slip. The full-view look is right and the house around it is untouched, but we asked for five columns and got four. On a full-view door, the section and column layout is what the customer is buying, so this one goes back to the configurator.
The Full Package on Two Different Houses
On the first house, one request for all three products changed all three and nothing else. On the second house, a brick bungalow, the package got the styles right and the counts wrong again, and a fix edit corrected only part of it.

What we typed for the first house: "Edit this photo without moving the camera: identical framing. Make three changes at once, the full replacement package: all four windows get black exterior frames and black sashes, same openings and sizes, no grids; the front door becomes a classic six-panel door painted deep navy blue with a brushed brass handle; the garage door becomes a carriage-house style door in dark charcoal grey with a row of four small windows across the top and black strap hinges and handles. Everything else stays exactly as in the photo."
House 1 package: pass. It matches the three single changes and adds nothing. This is the image that sells the whole job, and it took 33 seconds. Note what it asked for: products the model already got right one at a time, no unusual counts, and no board texture (its carriage door has the same grooved panels, which is fine here because the package asked only for a carriage-house style).
House 2 package: slip. The bungalow is a different house in every way: brick, a hip roof, a single garage on the right, a tree in front of the picture window. The black windows, the oak flush garage door with a row of frosted windows, the brick, the step and the tree all came out right. The door has four frosted strips where we asked for three, the two small windows came back as pairs of casements where we asked for single ones, and the old carriage lantern was swapped for a modern one we never asked for.

The fix edit said, in plain words, "exactly three frosted glass strips, not four" and "each one single pane casement with no vertical divider". One window was fixed, the door was not. So the method carries over to a different house, and so does the limit.
How a Sales Rep Uses It in an In-Home Consult
The render fits between the measure and the order: photo at arrival, two or three options while the customer looks at samples, the chosen one attached to the quote. Each render is under a minute, so it fits inside the visit.
- Photo at arrival. Before measuring, take one straight-on photo of the front from the sidewalk, whole facade in frame, no cars in the driveway if you can help it.
- Narrow the catalog first. Let the customer pick two or three styles and colors from your real samples or brochure. The render shows those choices on their house; it does not replace the samples.
- One product per render, from the same photo. Windows, then door, then garage door, each with the same keep list: camera, siding, roof, trim, the other openings, the light fixture.
- Count before you turn the tablet around. Panes per sash, lites in the door, glass strips, garage sections and columns, sidelights. Compare with what you are about to write on the order. If a count is wrong, tell the customer ("the real door has four lites, not six") or leave that option out; asking again with the count spelled out did not fix it in our test.
- Show the package last. Once each piece is chosen, render them together on the original photo for the before-and-after.
- Attach it to the quote, labelled. "Illustration, not to scale. Configuration per the order sheet. Color to be confirmed on the manufacturer's sample." The render goes next to the order, not in place of it.
The same visit flow, with paint instead of products, is in our paint contractor workflow, and for builders selling a whole outdoor project the deck and patio playbook covers the backyard version. For siding, color and full facade restyles on a house photo, start at the AI home exterior design page.
What It Can't Do
The render shows a style and a color on a house; it does not show a product you can order. Everything that makes the order correct stays with the rep, the measure and the manufacturer.
- No real dimensions or fit. The model has no idea of rough openings, header heights or wall space. It put a sidelight where the lantern was rather than tell us there was no room. Whether a wider door, a sidelight or a larger window fits is a measure question.
- Pane, grille and panel counts are unreliable. Every count that differed from the usual pattern came back as the usual pattern: four panes became six (twice on the door, once on the windows), five glass columns became four, three door strips became four even after a fix edit. Four windows across a carriage-house door, the usual layout, held. Material style can fall back the same way: vertical boards came back as grooved panels. Color swaps on an existing layout kept every panel. Count everything against the order sheet.
- Colors are approximate. "Navy" and "cedar woodgrain" are the model's navy and cedar, on your screen. Confirm every color and finish on the manufacturer's sample or chip before ordering.
- Small hardware drifts. Handles and locksets change shape and position, and a light fixture can be restyled or covered. Fine for choosing a style, not for selling a specific handle set.
- It does not know your product lines. These are generic doors and windows with no brand. A specific manufacturer's model, profile, glass package or energy rating is not in the render, and you should not present it as that model.
- The camera can move. One of 13 edits shifted the picture until we said "without moving the camera". Flip between before and after to check.
How to Try the Visualizer on a Customer's House
Use one good photo, one product per render, a keep list in every request, and a count check before anything is shown. It costs 150 credits a render on the Pro model we used.
- Shoot straight on from the street, whole facade, soft light. That photo is the base for every render.
- Write the keep list once: camera and framing, siding, roof, trim, every window and door you are not changing, light fixtures, lawn and driveway.
- Name only what changes: "the front door to a six-panel door in glossy navy, same opening, no sidelights", not "a nicer door".
- Prefer color swaps to counts and material styles. "Same panels, cedar woodgrain" holds; "four rows by five columns" may not.
- Check the render against the base and the order: camera, counts, fixtures, nothing added or removed.
- Package last, from the original photo, with the choices that already passed one by one.
If the house photo is also going into a presentation set, our one house photo, 12 outputs test turns the same kind of photo into elevations, night lighting and more, and the exterior paint visualizer guide covers color schemes for the siding and trim around the new doors.
Frequently Asked Questions
Can AI show new windows and doors on a photo of the customer's house?
Yes. In our test, one street photo of a two-story house got black window frames, three entry doors, three garage doors and a full package, each in 28 to 55 seconds, with the siding, roof, lawn and camera left as they were. Four of the 13 edits passed. The ones that went wrong mostly got a count wrong: panes in a grille, glass strips in a door, columns in a glass garage door.
Is an AI render accurate enough to order windows or doors from?
No. It shows the look, not the order. The render knows nothing about rough openings, sizes, swing, glass packages or energy ratings, and in our test every unusual pane or panel count came back as the usual one (four panes as six, five glass columns as four). Order from your measure sheet and the manufacturer's configurator, and use the render to help the customer choose the style and color before you write the order.
Which changes work best?
Color and finish changes on the same layout. A white garage door turned cedar woodgrain with all 32 raised panels kept, and the beige front door became a navy six-panel door with the same panel pattern. Black frames held once the camera was pinned. Counts that differ from the usual pattern failed every time we asked: four panes came back as six, five glass columns as four, three door strips as four. Material style can slip the same way: a carriage-house door asked for in vertical boards came back with grooved panels.
Can I show the whole package in one image?
Yes. On the first house, one request for black windows, a navy door and a charcoal carriage-house garage door changed all three and nothing else, in 33 seconds. On a second house, a brick bungalow, the package got the style right but put four glass strips in a door we asked to have three and split the small windows into pairs, and a fix edit only corrected one window.
Can I use a render in the quote I send the customer?
Yes, as an illustration labelled as such. Put the configuration from your order sheet next to it, check the render's pane and panel counts against that sheet first, and say colors are approximate and must be confirmed on the manufacturer's sample. Do not show a product line by name in a generated image; the render shows a generic door, not a specific manufacturer's model.
Show It on Their House, Then Write the Order
One street photo was enough to show a customer new windows, three front doors, three garage doors and the whole package on their own house, each in under a minute. Color swaps held; unusual pane and panel counts and a board style did not, so check every render before you show it. Use the render to settle the look at the kitchen table, and let the measure sheet and the manufacturer's sample settle the order.
Try it on a customer's house. Upload a street photo and tell Vizzy which window, door or garage door changes and what must stay: try Visualizee free, 5 renders (4 if you use your one Pro render), no card.
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