How To Price A Siding And Windows Job So You Actually Make Money
Siding and windows are two different trades sharing a truck — siding prices by squares, material, and story height, while windows price by type, size, and count. Forcing both through one formula either overprices a small window job or underprices a whole-house siding replacement.
Siding: squares × material × story-height multiplier
A 24-square vinyl siding job on a two-story home, with tear-off and 80 linear feet of trim/soffit, at an illustrative $220/square:
| Step | Calculation | Result |
|---|---|---|
| Material × two-story multiplier | $220/sq × 1.15 | $253.00/sq |
| Base price | 24 sq × $253.00 | $6,072.00 |
| Tear-off | 24 × $40 | +$960.00 |
| Trim/soffit | 80 ft × $8 | +$640.00 |
| Final quote | $6,072 + $960 + $640 | $7,672.00 |
Windows: type × size class × count
Four large bay windows, with trim wrap and disposal on each, at an illustrative $1,200/window base:
| Step | Calculation | Result |
|---|---|---|
| Bay rate × large-size multiplier | $1,200 × 1.4 | $1,680.00/window |
| Base price | 4 × $1,680.00 | $6,720.00 |
| Trim wrap | 4 × $60 | +$240.00 |
| Disposal | 4 × $25 | +$100.00 |
| Final quote | $6,720 + $240 + $100 | $7,060.00 |
Why the minimum job price still matters for a single window
A single standard double-hung window replacement — no trim wrap, no disposal — calculates to just $450 at an illustrative $450 base rate. A minimum job price (say, $600) exists so a one-window callout still covers the real cost of showing up:
| Step | Calculation | Result |
|---|---|---|
| Single window, raw | 1 × $450 | $450.00 |
| Minimum job price applies | MAX($450, $600) | $600.00 |
The rates used above are illustrative, not a claim about what your market should charge. Siding and window costs vary significantly by region and supplier — set your own numbers based on your actual market.