Break-even and contribution concepts are grounded in U.S. Small Business Administration guidance. Formulas and arithmetic examples are transparent; no local market price, target margin, labor rate, or average ticket is presented as universal.
There Is No Universal Price for a Window Screen Job
Two screens with similar dimensions can have different costs because frame profile, mesh, spline, hardware, access, removal, fabrication method, travel, and installation conditions differ. A reliable price begins with the configuration actually being sold.ScreenOps Practical Decision Guidance
| Scope area | Record before pricing | Why it matters |
|---|---|---|
| Opening | Property, structure, room or location, width, height, quantity | Controls identity, dimensions, and scale |
| Frame | New or existing, profile, depth, color, corners, crossbar | Changes material and production time |
| Mesh | Material, product, roll width, color, orientation | Changes unit cost, waste, handling, and claims |
| Retention | Spline or system, groove fit, springs, tabs, clips, rollers, fasteners | Changes fit, hardware, and labor |
| Fulfillment | Onsite, pickup, shop, customer drop-off, delivery, or installation | Changes travel, handling, scheduling, and risk |
| Conditions | Height, access, removal, damage, obstruction, finish protection | Changes time and safety controls |
1. Calculate the True Variable Cost of the Job
Variable job cost should include every cost that rises because the job exists. Omitting travel, payment fees, handling, or expected waste makes a busy schedule look healthier than it is.ScreenOps Practical Decision Guidance
- Materials consumed: Frame, mesh, spline, corners, hardware, fasteners, sealants, packaging, and consumables.
- Expected waste: Cut loss, unusable remnants, defects, breakage, and the practical yield of stocked lengths or rolls.
- Direct labor: Intake, measurement, estimate preparation, fabrication, loading, travel, installation, cleanup, and job-specific administration.
- Travel and delivery: Mileage, tolls, parking, delivery, and additional trips created by pickup or return work.
- Transaction cost: Card or financing fees and other charges tied directly to the sale.
- Expected service cost: A measured allowance for warranty or rework based on actual company history—not a permanent guess.
2. Turn Time Into a Labor Cost
An hourly wage is not the full cost of an employee hour. The business may also incur employer payroll costs, paid nonproductive time, training, supervision, benefits, workers compensation, tools, uniforms, and other employment costs. Owner labor also has a real cost even when it is not yet paid as a separate wage.Variable by System / Environment
- Estimate productive hours: Remove normal time for meetings, loading, cleanup, training, breaks, paid leave, shop maintenance, and other non-job work.
- Calculate labor cost per productive hour: Divide the relevant employment and labor-support cost by expected productive hours for the same period.
- Apply expected job time: Use measured setup, fabrication, field, travel, and closeout time by service or configuration.
- Compare to actual time: After completion, record variance and correct the standard rather than hiding the miss inside a general markup.
3. Understand Contribution, Break-Even, Markup, and Margin
The SBA defines unit break-even as fixed costs divided by selling price minus variable cost. The denominator is unit contribution: the amount available to cover fixed costs and then profit.Consensus Industry Standard
| Measure | Formula | What it answers |
|---|---|---|
| Contribution | Selling price − variable job cost | How much this sale contributes to overhead and profit |
| Break-even units | Fixed costs ÷ contribution per unit | How many consistent units are needed to cover fixed costs |
| Markup percentage | (Price − cost) ÷ cost | How much profit was added relative to cost |
| Gross margin percentage | (Price − cost) ÷ price | What share of the selling price remains after the defined cost |
| Price for target margin | Cost ÷ (1 − target margin) | What price produces the selected margin if the cost definition is complete |
Define cost consistently. A gross-margin calculation based only on material cost is not a complete view of job profitability.
| Cost | Selling price | Gross profit | Markup | Gross margin |
|---|---|---|---|---|
| $60 | $100 | $40 | 66.7% | 40% |
This is arithmetic only, not a recommended screen-industry price or margin.
4. Use Minimum Charges With a Clear Purpose
A one-screen service call can require nearly the same intake, scheduling, travel, setup, payment, and closeout work as a larger visit. A minimum charge can protect that fixed service effort when it is disclosed clearly and applied consistently.ScreenOps Practical Decision Guidance
- Per-visit minimum: Useful when the largest fixed cost is dispatching a person or vehicle.
- Per-order minimum: Useful for counter, pickup, or shop work with intake and setup costs.
- Per-product minimum: Useful when a specialty material or fabrication method has a distinct setup requirement.
- Trip or access charge: Useful when distance, height, or difficult access creates a separately explainable cost.
5. Build a Versioned Screen Pricebook
A pricebook should turn a verified opening configuration into a repeatable estimate without erasing judgment. Rules can be based on opening, perimeter, area, length, quantity, service time, package, or a combination, depending on the product.ScreenOps Practical Decision Guidance
- Separate service families: Do not force window screens, sliding doors, retractables, solar products, and enclosure work into one generic formula.
- Preserve cost and price units: Track whether material is purchased by roll, foot, piece, set, or sheet and how it is consumed by the sold unit.
- Record effective dates: An approved estimate should retain the prices and rules used when it was issued, even after the current pricebook changes.
- Require approval for exceptions: Discounts, unusually low margin, manual price overrides, and high-value jobs should identify who approved the exception.
- Control packages: Package discounts should be calculated from the actual included scope, not used to hide missing cost.
6. Make the Estimate a Controlled Commercial Record
| Control | Required record | Why it matters |
|---|---|---|
| Revision | Version number, issue date, author, and change reason | Prevents production from using an old scope |
| Basis | Verified measurement, customer photo estimate, allowance, or site assumption | Separates preliminary pricing from production specification |
| Line-item scope | Configuration, quantity, price, discount, tax treatment, and fulfillment | Makes the approved work explicit |
| Terms | Validity, deposit, exclusions, changes, cancellation, warranty, and collection terms | Sets commercial expectations |
| Decision | Sent, viewed, approved, declined, or expired with date and actor | Controls follow-up and production release |
| Acceptance | Signature or attributable digital approval | Creates a durable approval record |
7. Close the Loop With Actual Job Cost
Pricing improves only when estimated assumptions are compared with actual work. Review completed jobs by service, product, technician or work center, territory, source, and exception type.ScreenOps Practical Decision Guidance
- Labor variance: Estimate versus actual productive and travel time.
- Material variance: Planned quantity versus issued, returned, substituted, and scrapped quantity.
- Price realization: List price versus approved discounts, credits, refunds, and collected amount.
- Rework burden: Remakes, callbacks, warranty visits, and nonbillable return trips.
- Capacity impact: Whether the job displaced higher-contribution work or consumed a constrained work center.
- Collection impact: Time from approval or completion to usable cash and any transaction or financing cost.
Common questions
What is a good profit margin for a window screen business?
There is no universal margin that is factual for every screen company. The necessary margin depends on overhead, productive capacity, service mix, warranty exposure, territory, payment cost, and owner goals. Define the cost base clearly, choose a target, and validate it against actual completed jobs and cash flow.
Should screen repair be priced per screen or per hour?
Either can work. Per-screen pricing is easier for customers when configurations are repeatable; hourly pricing can fit uncertain repair or diagnostic work. Many companies use a service minimum plus configuration-based units, with approved change handling for hidden damage.
What is the difference between markup and margin?
Markup divides profit by cost. Margin divides profit by selling price. If cost is $60 and price is $100, the $40 profit is a 66.7% markup and a 40% margin.
Should travel be included in a screen estimate?
Travel is a real job cost. It can be built into a service minimum, territory price, labor allowance, or separate disclosed trip charge. The important controls are consistency, customer clarity, and including it in profitability analysis.
How should material waste be priced?
Use expected yield for the stocked length or roll and measure actual remnants and scrap over time. Price the material consumed by the job, including unavoidable cut loss, without treating every leftover piece as reusable inventory unless it can actually be identified and used.
When should screen prices be updated?
Review prices when supplier cost, labor cost, payment cost, travel, waste, rework, capacity, or service scope changes materially. Preserve effective dates and keep already approved estimates tied to the version the customer accepted unless a documented change is approved.