Get these in writing from every installer
| Item | Why it matters |
|---|---|
| Price per window and total | Lets you compare against national averages |
| Brand and exact product line | “Andersen” can mean $400 or $4,000 per window |
| Frame material, glass package, color | Each changes price |
| Insert or full-frame installation | Full-frame costs more but fixes frame problems |
| Interior and exterior trim, capping, caulk and insulation | Often excluded from cheap quotes |
| Removal and disposal | Usually $10-$20 per window if itemized |
| Permits and lead-safe practices (pre-1978 homes) | Required in many cases |
| Product and labor warranty | Labor coverage is often much shorter |
| Timeline and deposit | Large deposits are a risk |
Red flags
- Pressure to sign today for a big “discount”.
- No per-window pricing or product line named.
- Unwilling to provide license and insurance details.
- Cash-only or very large upfront deposits.
Next step
Run your numbers through the calculator, then get more quotes if one looks out of line.
