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Window Trim Installation Cost Calculator — 2026 Casing Price Estimator
Get a realistic 2026 estimate for interior window trim and casing carpentry by window count, trim style, and material — then compare quotes from finish carpenters near you.
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What You'll Need
UFP-Edge WM356 2-1/4 in. x 7 ft. White Door Casing Set
$54.99
View on Amazon
FLEXTRIM #445: Flexible Casing Molding: 11/16" Thick x 3.25" Wide - PRE Curved to fit Half Round Windows 42" to 56" Diameter
$89.00
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Outwater 3-5/8 inch x 1-1/8 inch x 96 inch Casing Moulding 6 Pack, Primed White
$170.99
View on AmazonUFP-Edge WM356 2-1/4 in. x 7 ft. White Door Casing Set
$54.99
View on AmazonFLEXTRIM #445: Flexible Casing Molding: 11/16" Thick x 3.25" Wide - PRE Curved to fit Half Round Windows 42" to 56" Diameter
$89.00
View on AmazonOutwater 3-5/8 inch x 1-1/8 inch x 96 inch Casing Moulding 6 Pack, Primed White
$170.99
View on AmazonAs an Amazon Associate, we earn from qualifying purchases.
Price as of Jul 24, 2026. Product prices and availability are accurate as of the date indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
Related calculators
Window Replacement Cost CalculatorPrice replacing the whole window unit — the natural companion project when you are already re-trimming openings.Baseboard CalculatorEstimate baseboard molding for the same rooms — trim carpenters often bundle casing and baseboard in one visit.Crown Molding CalculatorPlan crown molding to match new window casing for a coordinated finish-carpentry package.Countertop Installation Cost CalculatorEstimate 2026 countertop installation cost by linear feet, material, and edge. Quartz, granite, and marble quotes typically run $2,000 to $6,500 installed.Baseboard Installation Cost Calculator — 2026 PricingEstimate 2026 baseboard installation cost by linear feet, material, and ZIP. Installed runs $3-$11 per foot; a room is $200-$530, a house $750-$3,000.Shutter Installation Cost CalculatorEstimate 2026 shutter installation cost by type, material, and window count. Exterior vinyl $75-$500 per window; interior plantation $220-$600 per window.
Did You Know?
Interior window trim installation costs $100–$350 per window in 2026, with a national average near $175. Flat and colonial casing runs $100–$200 per window; craftsman and decorative crown-header profiles run $200–$350. A whole-house re-trim of 10–15 windows commonly totals $1,500–$3,500 including old-trim removal and finishing.
Frequently Asked Questions
QHow much does window trim installation cost in 2026?
Interior window trim and casing installation costs $100 to $350 per window in 2026, with a national average around $175 for a standard opening. Where you land depends mostly on the trim style: simple flat stock or ranch casing runs $100 to $150 per window, colonial casing $120 to $200, and craftsman or decorative crown-header profiles $200 to $350. Materials add $1 to $10 per linear foot and labor runs $3 to $5 per linear foot, with trim carpenters charging $65 to $105 per hour and spending about 1.1 to 1.4 hours per window.
- Typical per window installed: $100–$350
- National average: about $175 per window
- Flat / ranch casing: $100–$150 per window
- Colonial casing: $120–$200 per window
- Craftsman / decorative: $200–$350 per window
| Trim Style | Material ($/window) | Installed ($/window) |
|---|---|---|
| Flat stock / ranch | $15–$40 | $100–$150 |
| Colonial casing | $20–$60 | $120–$200 |
| Craftsman | $40–$110 | $200–$300 |
| Decorative / crown header | $60–$160 | $250–$350 |
QWhat does it cost to trim all the windows in a house?
A whole-house interior re-trim depends on how many windows you have and the style you choose. The average US home has 8 to 12 windows, so a colonial re-trim commonly totals $1,200 to $2,400, while a craftsman package across the same windows runs $1,800 to $3,500. Add old-trim removal and wall repair and the figure climbs another $500 to $1,000 on a 10-window job. Because per-window labor includes setup, mobilization, and finishing, a single window booked alone often costs more per unit than the same work done across a full house.
- Average home has 8–12 windows
- Colonial whole-house re-trim: $1,200–$2,400
- Craftsman whole-house re-trim: $1,800–$3,500
- Old-trim removal + wall repair: +$500–$1,000 on 10 windows
- Single window alone costs more per unit than batched work
| Window Count | Colonial Total | Craftsman Total |
|---|---|---|
| 5 windows | $700–$1,200 | $1,100–$1,800 |
| 10 windows | $1,300–$2,200 | $2,200–$3,200 |
| 15 windows | $1,900–$3,200 | $3,200–$4,800 |
QDoes removing old window trim add to the cost?
Yes. Tearing off and disposing of existing casing adds roughly $20 to $40 per window, or about $0.60 to $1.20 per linear foot of trim removed. The bigger hidden cost is wall repair: pulling old trim often damages the drywall edge and reveals paint lines, so patching and prepping the opening adds another $30 to $60 per window. New-construction or bare openings skip both line items, which is why a fresh install can be noticeably cheaper than a replacement of the same style.
- Old-trim tear-off: $20–$40 per window
- Linear-foot removal rate: $0.60–$1.20 per ft
- Wall repair after removal: $30–$60 per window
- New-construction openings skip removal entirely
- Disposal fees may apply on large jobs
QIs craftsman window casing more expensive than colonial?
Usually yes. Flat stock and colonial casing cost about half of craftsman or decorative crown-header profiles, both in material and in labor. Craftsman casing uses wider, thicker stock and built-up headers with more pieces and joints, so it runs $200 to $350 per window installed versus $100 to $200 for flat or colonial. The material itself is also pricier: craftsman wood trim runs $1 to $10 per linear foot while basic colonial profiles start near $1. The premium buys a heavier, more architectural look that many buyers want in older or higher-end homes.
- Flat / colonial cost about half of craftsman
- Craftsman installed: $200–$350 per window
- Flat / colonial installed: $100–$200 per window
- Craftsman wood trim: $1–$10 per linear foot
- Built-up headers add pieces, joints, and labor time
QShould I budget separately for painting the new trim?
Often, yes. Many quotes cover only installation and assume the trim arrives primed or pre-finished. If you want the carpenter to prime and paint or stain on site, budget about $25 to $50 per window for finishing. Stain-grade hardwood costs more to finish than paint-grade pine or MDF because it needs sanding, conditioner, stain, and topcoat. Ask whether the quote includes caulking and a finish coat — a trim job that looks unfinished after install usually means painting was excluded and billed later.
- On-site finishing: $25–$50 per window
- Paint-grade pine / MDF is cheapest to finish
- Stain-grade hardwood needs more finishing labor
- Confirm caulking and finish coat are included
- Pre-finished trim avoids the on-site finishing line item
Example Calculations
110 windows, colonial casing, pine, no removal
Inputs
Number of windows10
Trim styleColonial casing
MaterialPine (paint-grade)
Remove old trimNo
FinishingNo
Result
Typical project cost$1,300 – $2,000
Per-window cost$130 – $200
Labor share~50–60% of total
A new-construction colonial re-trim of 10 windows in paint-grade pine, with no removal or on-site finishing, lands at $130–$200 per window, or $1,300–$2,000 total.
28 windows, craftsman, hardwood, with removal + finishing
Inputs
Number of windows8
Trim styleCraftsman
MaterialHardwood (oak)
Remove old trimYes
FinishingYes
Result
Typical project cost$2,600 – $3,600
Per-window cost$325 – $450
Removal + finishing add-on~$75–$110 per window
Craftsman casing in stain-grade hardwood runs $200–$300 per window, plus $20–$40 removal, $30–$60 wall repair, and $25–$50 finishing — pushing 8 windows to $2,600–$3,600.
31 window, flat stock, MDF, single-window service call
Inputs
Number of windows1
Trim styleFlat stock / ranch
MaterialMDF
Remove old trimYes
FinishingNo
Result
Typical project cost$120 – $250
Minimum service fee$75 – $150 typical
Per-unit premiumHigher than batched work
A single flat-stock MDF window with old-trim removal hits the carpenter's $75–$150 minimum service fee, so one window costs $120–$250 — proportionally more than a whole-house job.
Formulas Used
Per-window trim cost
Per window = Material + (Labor hours × Hourly rate) + Removal + FinishingEach window's cost stacks material, the carpenter's hourly labor for cutting and fitting, optional old-trim removal, and optional finishing.
Where:
Material= Flat $15–$40, colonial $20–$60, craftsman $40–$110, decorative $60–$160Labor hours × Hourly rate= 1.1–1.4 hours per window at $65–$105 per hourRemoval= Old-trim tear-off $20–$40 plus wall repair $30–$60 (if replacing)Finishing= On-site prime/paint/stain $25–$50 per window (if not pre-finished)Whole-job total
Project total = Per-window cost × Number of windowsScale the per-window figure across every opening. Batched whole-house jobs lower the per-window cost because setup and mobilization are spread out.
Where:
Per-window cost= Your single-window total from the formula aboveNumber of windows= Average US home has 8–12 windowsLinear-foot estimate
Per window = Casing length (ft) × (Material rate + Labor rate)An alternative way carpenters price the work: total casing length around the opening times combined material and labor per linear foot.
Where:
Casing length= Roughly 14–18 linear feet for an average 36 × 54 inch windowMaterial rate + Labor rate= $1–$10 material plus $3–$5 labor per linear footWindow Trim Installation Costs in 2026: What Buyers Actually Pay per Window
1
What Window Trim Installation Costs in 2026
Interior window trim is finish carpentry, not window replacement, and that distinction is the first thing that determines your price. In 2026, installing the casing around a single interior window costs most homeowners between $100 and $350, with a national average near $175 per window. You are paying for a trim carpenter to measure, miter, fit, and fasten the casing that frames the opening — the glass, sash, and frame of the window itself are a separate job priced through a window replacement cost calculator. Keeping the two budgets separate is the only way to compare quotes accurately.
Where you land inside that $100 to $350 range depends almost entirely on the trim style you choose. Simple flat stock or ranch casing runs $100 to $150 per window, colonial casing $120 to $200, and craftsman or decorative crown-header profiles $200 to $350. The labor component is steady across styles at $65 to $105 per hour, with carpenters spending roughly 1.1 to 1.4 hours per window, but the more elaborate profiles take longer to fit and use more material. The calculator above applies your window count, style, and material to produce a realistic range and then connects you with finish carpenters nearby.
Scale matters too. The average US home has 8 to 12 windows, so a whole-house re-trim is rarely a small number: a colonial package across 10 windows commonly totals $1,300 to $2,200, while craftsman runs $2,200 to $3,200 for the same openings. Per-window cost actually drops on larger jobs because the carpenter spreads setup, mobilization, and minimum service fees across more openings. A single window booked alone can hit a $75 to $150 minimum service charge, making it the most expensive way to buy trim work by the unit.
| Trim Style | Material ($/window) | Installed ($/window) |
|---|---|---|
| Flat stock / ranch | $15–$40 | $100–$150 |
| Colonial casing | $20–$60 | $120–$200 |
| Craftsman | $40–$110 | $200–$300 |
| Decorative / crown header | $60–$160 | $250–$350 |
Trim carpentry and window replacement are separate jobs. If a quote bundles them, ask the contractor to itemize the casing labor so you can compare it against trim-only bids.
2
Trim Style and Material: The Two Biggest Price Levers
Two choices move your window-trim bill more than anything else: the profile (style) and the material. On profile, flat stock and colonial casing cost roughly half of craftsman or decorative crown-header trim. A flat or colonial window lands at $100 to $200 installed, while craftsman casing — wider, thicker, and often built up with a stacked header — runs $200 to $350. The extra cost is real labor: built-up headers and aprons mean more pieces, more joints to cut and fit, and more time, which is why the same carpenter charges more per craftsman opening even at the same hourly rate.
Material is the second lever. Paint-grade pine and MDF are the budget options, with casing material starting near $1 per linear foot and topping out around $4 for nicer pine profiles. Stain-grade hardwoods like oak and pricier engineered or PVC/composite trims run $1 to $10 per linear foot and demand cleaner cuts and tighter joinery because stained wood shows every gap. Because an average 36 by 54 inch window needs roughly 14 to 18 linear feet of casing, a $2 per foot jump in material adds only $30 to $40 per window — but multiplied across a whole house it becomes a real number.
The two levers compound. A flat-stock MDF window is the cheapest combination at the very bottom of the range, while craftsman casing in stain-grade hardwood with on-site finishing sits at the top, easily $325 to $450 per window once removal and finishing are added. If you love the craftsman look but need to control cost, paint-grade poplar or primed MDF craftsman profiles capture most of the architectural weight at a fraction of hardwood's material price. The same logic applies to other finish work, which is why many buyers price casing alongside a baseboard calculator to coordinate one material spec across the room.
| Material | Per Linear Foot | Best For |
|---|---|---|
| MDF | $1–$2 | Budget paint-grade |
| Pine | $1–$4 | Standard paint-grade |
| Hardwood (oak) | $3–$10 | Stain-grade, premium look |
| PVC / composite | $3–$9 | Moisture-prone rooms |
- Flat / colonial cost about half of craftsman per window
- An average window needs 14–18 linear feet of casing
- Paint-grade pine and MDF are the cheapest materials
- Stain-grade hardwood needs tighter joinery and more labor
- Primed MDF craftsman profiles mimic the look for less
3
How a Window Trim Quote Breaks Down
Understanding the anatomy of a trim quote helps you spot which bid is honest and which one is hiding a line item. On a typical per-window job, labor is the largest slice at roughly 50 to 60 percent of the total. At $65 to $105 per hour and 1.1 to 1.4 hours per window, labor alone runs about $75 to $145 per opening before any material. That share is why a carpenter's hourly rate and regional market matter so much: a high-cost metro can sit 25 to 40 percent above rural and Southeastern rates for identical work.
Material is the next slice, usually 25 to 35 percent of a per-window quote, covering the casing stock, fasteners, shims, and caulk. The remaining cost splits between optional old-trim removal and on-site finishing — each typically 10 percent or less of the total on a new install, but together they can add $75 to $110 per window on a replacement that needs tear-off, wall repair, and painting. The chart below shows a representative split for a mid-range colonial window so you can sanity-check where your own quote concentrates its cost.
When you compare bids, normalize them against this structure. A quote that is dramatically lower than the others usually drops finishing or removal and rebills it later, while an unusually high one may assume a premium material or a steep regional labor rate. Ask each carpenter to state labor hours, material grade, and whether removal and finishing are included, then compare apples to apples. Many homeowners also line up painting separately through an interior paint cost calculator when the trim arrives primed rather than finished.
Labor is half the bill. The single biggest swing in your quote is the local trim-carpenter hourly rate, so getting three quotes in your own ZIP code matters more than chasing a cheaper material.
4
Removing Old Trim and Wall Repair
Replacing existing window casing costs more than trimming a bare opening, and the gap is bigger than most homeowners expect. The visible part — tearing off and disposing of old trim — adds about $20 to $40 per window, or roughly $0.60 to $1.20 per linear foot of casing removed. On a 10-window house that is $200 to $400 just to get the old material off the wall and into the dumpster, before a single new piece goes up.
The hidden cost is wall repair. Prying off old casing almost always chips the drywall edge, tears paper, and exposes a paint line and nail holes that the new trim will not fully cover. Patching, sanding, and priming that perimeter adds another $30 to $60 per window. If the original trim was thicker than the replacement, the reveal can expose unpainted wall that needs touch-up too. New-construction and bare openings skip both line items entirely, which is why a fresh install of the same style often costs noticeably less than a replacement.
Disposal can also surface as a separate fee on larger jobs, especially where old trim contains lead paint in homes built before 1978 and must be handled under EPA RRP rules. Always ask whether removal, wall repair, and disposal are inside the quoted price or billed on top — these three add-ons are the most common reason a 'cheap' replacement bid balloons once work starts. Building them into your budget up front keeps the final invoice from surprising you.
Removal plus wall repair can add $50 to $100 per window to a replacement. If your existing casing is sound, ask whether the carpenter can re-case over it or extend it rather than tearing it out.
- Old-trim tear-off: $20–$40 per window
- Linear-foot removal rate: $0.60–$1.20 per ft
- Wall repair and prep: $30–$60 per window
- Disposal fees may apply on large jobs
- Pre-1978 homes may trigger lead-safe handling rules
5
Common Mistakes When Hiring a Trim Carpenter
The cheapest window trim is the one that looks right the first time and never needs redoing, so vet carpenters on craft, not just the headline price. The most common mistake is accepting a single quote: trim labor varies widely by carpenter and region, and without three bids you have no way to know whether $175 per window is fair in your market. The second is forgetting to budget for finishing — many quotes assume primed trim and exclude paint or stain, so an unfinished result is not a defect, it is a line item that was never included.
Joinery is where skill separates carpenters, and it is easy to overlook on paper. Mitered corners give a clean, continuous wood-grain look but require precise 45-degree cuts; butt joints with a square header are simpler and cheaper but read as less refined. If you care about the result, specify which you want and ask to see photos of the carpenter's past joints. Gaps, proud nails, and uneven reveals are the telltale signs of rushed work that a slightly higher bid usually avoids.
Finally, homeowners often misjudge scope by pricing one window when they really want a coordinated look across a room or floor. Casing that does not match the existing baseboard or door trim can make a renovation look unfinished, so plan the finish-carpentry package together. Pricing casing alongside a crown molding calculator and matching the wood and profile across windows, doors, and base trim costs little extra during one visit but is expensive to fix later piecemeal.
- Getting only one quote instead of three
- Assuming paint or stain finishing is included
- Not specifying mitered vs butt-joint corners
- Ignoring how new casing matches existing trim
- Hiring on price alone without checking joinery samples
6
How to Get an Accurate Window Trim Quote
An accurate quote starts with an accurate scope, so do the counting before you call. Walk the house and tally exactly how many window openings need trim, noting any oversized or arched windows that take extra material and time. A clear count of, say, 11 standard windows plus one large picture window lets a carpenter price the job precisely instead of padding for the unknown. The calculator above turns that count, your style, and your material into a defensible range you can take into every conversation.
Next, specify the details that move the price: the trim style and profile, the material grade, whether old trim must be removed, and whether you want on-site finishing. Spell these out the same way to every bidder so the quotes are comparable — a carpenter assuming primed flat stock will always look cheaper than one quoting finished craftsman, even though they are pricing different jobs. Ask each to state labor hours, the per-window or per-linear-foot rate, and which add-ons are included versus billed separately.
Finally, use the estimate to flag outliers. A bid far below your calculated range usually means a corner is being cut — fewer pieces, a cheaper material, or excluded finishing — while one far above may reflect a premium carpenter or a high-cost metro. Treat the calculator's figure as your anchor, then let the in-person walkthrough refine it. The steps below put the booking process in order so you arrive informed rather than guessing.
Bring a firm window count and a chosen style to every quote. The more precisely you define the scope, the tighter and more honest each carpenter's bid will be.
- 1
Count your windows
Tally every opening that needs trim and note any oversized or arched windows that cost more.
- 2
Pick style and material
Decide between flat, colonial, craftsman, or decorative, and choose paint-grade or stain-grade material.
- 3
Decide on removal and finishing
Note whether old trim must be torn off and whether you want the carpenter to prime and paint on site.
- 4
Collect three itemized quotes
Ask each carpenter for labor hours, per-window rate, and which add-ons are included.
- 5
Compare against your estimate
Use the calculator's range to spot bids that are suspiciously low or high before you book.
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Last Updated: Jul 24, 2026
This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.