Window contractor invoicing software has one job that generic invoicing apps handle badly: collect a deposit that covers a non-returnable special-order unit, then hold the balance across a manufacturing lead time of two to twelve weeks until the install crew is packing up. Angi's 2026 cost data puts a typical window replacement project at $7,348, commonly $3,437 to $11,837, so the money almost always arrives in two or three pieces. The tools that fit are home improvement platforms like Leap, MarketSharp, and improveit 360, or QuickBooks Online paired with a field app such as Jobber for smaller shops.
Key takeaways
- Windows and doors are a made-to-order business. Once a unit is measured and ordered it cannot be resold, so your deposit needs to cover the order, not just hold the calendar slot.
- Deposit caps are set by state law. California limits home improvement deposits to 10% of the contract or $1,000, whichever is less (per the CSLB), and Nevada uses the same limit unless the contractor files a $100,000 consumer protection bond with the board (NRS 624).
- The gap between order and install is where cash dies. Manufacturing runs about two to six weeks for custom vinyl and eight to twelve for custom wood, so build a middle payment tied to unit delivery.
- Per-user pricing decides your real bill. Leap runs about $79 per month plus roughly $99 per user as of mid-2026, which is a very different number for a two-person shop than for a ten-rep sales team.
- Card fees on a $9,000 window job cost $260 to $290. Take cards for the deposit, push the install balance to ACH or check.
Why window and door invoicing is its own problem
Window and door invoicing splits a single job across a long dead zone. You sell at the kitchen table, take a deposit, send a tech for final field measurements, place the factory order, wait, receive and inspect the units, schedule the crew, install in one or two days, then collect. Industry timeline breakdowns put manufacturing and delivery at roughly 60% to 75% of the total project duration, with the actual install closer to 15% to 20%.
That shape creates three billing problems no plumbing invoice has. Your cash goes out at the order, weeks before any labor happens. The units are custom sized to one opening, so a cancellation leaves you holding glass nobody else wants. And the customer sees no visible progress for a month, which makes any mid-project payment request feel arbitrary unless the contract already spelled it out. A window replacement invoice is really a payment schedule with a manufacturing delay baked in, and our software stack guide for remodeling contractors shows where invoicing sits next to estimating and scheduling.
Deposits on special-order units: what your state actually allows
Deposits on window and door jobs are capped by state home improvement law, and the caps rarely care that your units are non-returnable. California limits a home improvement deposit to 10% of the contract price or $1,000, whichever is less, per the Contractors State License Board, with no carve-out for special-order materials. Nevada's contractor statute (NRS 624) sets the same $1,000 or 10% limit, but exempts contractors who have filed a $100,000 bond with the board specifically to protect consumers. Maryland allows up to one third of the contract price. Texas, Arizona, and New York set no statutory cap at all, which is why 25% to 50% down is normal practice in those markets.
A few states do recognize non-returnable special-order materials as a separate line, letting you collect against those items on top of the base cap. Treat that as something to confirm with your own licensing board rather than something to assume, because getting it wrong is a licensing violation, not a billing dispute. If your state caps you at $1,000 on a $12,000 window job, you have two options that actually work: a progress payment due at unit delivery, or financing that funds you at completion. Our page on financing for window and door contractors covers the second path, and how 0% APR promotions really work explains what the dealer fee costs you.
A payment schedule that matches how windows get built
A window replacement payment schedule should track the factory, not the calendar. Three milestones cover almost every residential job:
- Deposit at signing: the maximum your state allows, applied against the factory order and stated as such on the invoice.
- Order or delivery payment: due when the units ship or arrive at your warehouse. This is the payment that keeps you from financing the manufacturer for six weeks, and it is the easiest one to justify because the customer can see their windows.
- Balance at substantial completion: due the day the crew finishes install and cleanup, with capping, trim, and screens accounted for on the punch list.
Two details make this hold up. Put the final field measurement, not the sales estimate, on the order confirmation the customer signs, because a re-measure that changes a unit size is a change order and needs to reach the invoice. And invoice the balance from the driveway on install day rather than from the office two days later, since the collection rate on a same-day invoice with the job visibly complete is the highest it will ever be. Larger multi-day jobs, full-house replacements and door packages over about $25,000, can add a fourth payment at the halfway point.
Must-have invoicing features for window and door contractors
Window and door contractors need a shorter feature list than a general remodeler, but the top of this list is where generic invoicing apps fail.
| Feature | Why a window contractor specifically needs it |
|---|---|
| Deposit plus scheduled balance on one job | Bill a capped deposit now and the install balance weeks later without rebuilding the invoice |
| Line-item detail per opening | Twelve windows, four styles, two grid patterns: the invoice has to match the order sheet |
| Order status and lead time tracking | Triggers the delivery payment and answers the "where are my windows" call without a phone tree |
| Change orders from re-measure | A resized unit or added transom must become an invoice line, signed and dated |
| Automatic balance reminder at install completion | Removes the two-day lag that turns a collection into a chase |
| Financing handoff from the invoice | Lets a $14,000 job clear at completion instead of stalling on a deposit cap |
| ACH plus card, and QuickBooks sync | Keeps a 3% fee off your biggest payment and puts deposits in the right books |
For the cross-trade view of which platforms cover this, see our roundup of the best invoicing and payment collection software for contractors.
What window contractor invoicing software costs in 2026
Pricing splits into three tiers: accounting plus a field app, home improvement CRMs built for in-home sales, and enterprise platforms for multi-location dealers. Figures are as of mid-2026 and several vendors quote rather than publish.
| Platform | Published or reported pricing (mid-2026) | Best fit |
|---|---|---|
| QuickBooks Online | $38 to $275 per month per Intuit's 2026 pricing, Plus at $115 | Solo and two-crew installers billing deposit plus balance |
| Jobber | From about $39 per month solo, team plans higher, per Jobber's published pricing | Installers who also run service, repairs, and screen work |
| Leap | About $79 per month base plus roughly $99 per user, per 2026 pricing guides and Capterra listings | In-home sales teams that quote and contract on a tablet |
| MarketSharp | Roughly $99 to $299 per month flat, per 2026 vendor comparisons | Small to mid dealers wanting marketing and lead tracking with billing |
| improveit 360 | From about $125 per feature per month, per Software Advice's 2026 listing | Multi-location window and bath dealers with large rep teams |
Run the per-user math before the sticker price. A six-rep shop on a $79 base with $99 per seat is paying over $670 a month before anything else, which changes the comparison against a flat-rate tool completely. Processing is the other hidden line: card rates across field platforms run roughly 2.9% to 3.2% plus about $0.30 per transaction, so a $9,000 install balance on a card costs $260 to $290 versus a capped flat fee on ACH. Our Jobber review for small contractors and contractor accounting software comparison break down where those fees land.
How to evaluate window contractor invoicing software
- Start with your state's deposit cap. If you are capped at $1,000, you need delivery-stage billing or financing built in, and that requirement rules out half the shortlist immediately.
- Run one real job through the trial. Nine windows, one patio door, a deposit, a re-measure change order, a delivery payment, and a balance. If the trial cannot model that cleanly, neither can the software.
- Count seats honestly. Include every sales rep, the office manager, and anyone who needs the app in the field, then multiply by the per-user fee for a real monthly number.
- Test invoicing from a phone in a driveway. The balance invoice gets sent standing outside a house with one bar of signal, not from a desk.
- Check the order tracking link. Software that ties the factory order and delivery date to the invoice removes most status calls and triggers the middle payment automatically.
- Verify the QuickBooks sync in both directions. Deposits, progress payments, and financing payouts all have to land in your books without hand-keying.
Common invoicing mistakes window contractors make
- One invoice at the end. Paying the factory in week one and collecting in week eight means you funded the manufacturer out of your own account.
- Deposit language that ignores the state cap. A 50% down clause in a 10% state is unenforceable and puts your license at risk.
- Verbal re-measure changes. An upsized unit or an added grid pattern approved by text and never invoiced is money you gave away.
- No delivery-stage payment. The single easiest payment to collect is the one due when the customer's windows are physically sitting in your shop.
- Absorbing card fees on the balance. Three percent on a full-house replacement is most of a crew day.
- Invoicing from the office the next morning. Send it before the truck leaves the driveway, while the new windows are the best thing about the customer's day.
Frequently asked questions
What is the best invoicing software for window and door contractors?
For most small window contractors, QuickBooks Online paired with a field app such as Jobber handles deposit plus balance billing at the lowest total cost, while Leap, MarketSharp, and improveit 360 make sense once you have multiple in-home sales reps and want contracts, orders, and invoices in one system. The dividing line is rep count, not revenue.
How much deposit can I take on a window replacement job?
It depends on your state: California and Nevada cap home improvement deposits at 10% of the contract or $1,000, whichever is less, Maryland allows up to one third, and Texas, Arizona, and New York set no statutory cap. Check your state contractor licensing board before you standardize a deposit percentage in your contracts, because a few states also treat non-returnable special-order materials as a separate allowance.
How do I get paid for special-order windows if my state caps deposits?
Add a payment due at unit delivery, or offer financing that funds you at completion. A delivery-stage payment is easy for the customer to accept because the windows physically exist by then, and financing moves the cash risk to a lender instead of your operating account.
When should I invoice the balance on a window installation?
The day the crew finishes, from the job site, with the punch list attached. Same-day invoicing while the customer can see the finished work collects faster than a mailed statement, and most field platforms will send it from a phone in under a minute.
Can QuickBooks handle deposits and progress payments for window jobs?
Yes, QuickBooks Online supports progress invoicing against an estimate, which covers a deposit, a delivery payment, and a final balance. What it does not do is track factory orders, lead times, or signed re-measure change orders, so window contractors usually pair it with a field or home improvement CRM once those become daily work.
Should I charge a credit card fee on the install balance?
Sometimes, but surcharging is regulated state by state and card networks require clear disclosure, so confirm the rules before adding a fee line. The simpler move is accepting cards for the deposit and making ACH or check the standard for the balance, which is where the 3% actually hurts.
Next step: pull your last three window jobs, write out what you collected and when against what you paid the factory and when, and find the week your cash went negative. Then run that exact job through two trials, including the re-measure change order, and compare total first-year cost with seats and processing included. Our estimating software roundup covers the tool that should be feeding those invoices, and the contractor CRM comparison covers what sits above it.