Quotes for impact windows are rarely apples to apples. A lower price can hide a smaller scope. Use this checklist to compare fairly.
1. The same list of openings
Make sure each quote covers the same windows and doors, with sizes and styles. Missing a slider or garage door can change the total.
2. The product
- Manufacturer and product line.
- Miami-Dade NOA or Florida Product Approval numbers.
- Glass package, tint and frame color.
3. The installation scope
- Removal and disposal of old windows.
- Stucco, trim and interior repair included or not.
- Whether the installer is licensed and insured.
4. Permits and inspection
A quote should say who pulls the permit and who schedules the inspection. See your area and the code basics.
5. Warranty
Compare the manufacturer warranty and the contractor's workmanship warranty, and get them in writing. See how long impact windows last.
6. Timeline and payment
Ask for lead time and install dates. Be cautious of large upfront payments. A reasonable deposit with milestone payments is more typical.
Red flags
- Pressure to sign today.
- No license number on the quote.
- Vague product descriptions.
More tips in how to choose a window contractor.
A comparison table you can copy
Make a simple table with one column per contractor and rows for each item below. Fill it in from the written quotes:
- Total price and payment schedule.
- Number of windows and doors covered.
- Manufacturer and product line.
- Product approvals (NOA / Florida Product Approval).
- Glass package, tint and frame color.
- Permit and inspection responsibility.
- Removal, disposal and repair work.
- Product warranty and workmanship warranty.
- Estimated lead time and installation duration.
How to compare "equivalent" products
Two windows can both say "impact" and still differ in design pressure rating, frame quality and hardware. Ask for the data sheet for each product and compare ratings. A premium line may justify a higher price if its ratings and warranty are stronger.
Check the fine print
- Cancellation terms and deposits.
- What happens if the permit is delayed.
- Who pays for changes after measuring.
- How leaks or defects are handled after installation.
Do not rely on price alone
If one quote is far below the others, find out why. Sometimes it covers fewer openings, uses a lower product line or excludes permits. Ask for clarity before you decide.
Take your time
A good contractor will give you room to compare. If you feel rushed, that is information too. See contractor red flags.
Frequently Asked Questions
Should I choose the cheapest quote?
Not automatically. Check that the scope, product quality, permit handling and warranty match before comparing price.
How many quotes should I get?
Two or three written quotes covering the same list of openings is a good approach.
What should a good quote include?
Itemized openings and sizes, product line and approvals, installation, permits, disposal, warranty terms and a payment schedule.
Can I negotiate a quote?
Often you can discuss scope, product choices and timing. Ask what options exist rather than only pushing on price.
Ready to talk about your project? Get a free written quote (usually within 48 hours) or call 786-343-4729. EZ Glazing Corp is licensed and insured (License #SCC131153391) and handles the permit and inspection.