Short answer: as an estimate, replacing a standard-size window in Port St. Lucie costs about $500–$1,200 installed for a non-impact window and $800–$2,100 for an impact window. A whole house usually comes to several thousand dollars for standard glass and well into five figures for impact.
Estimated price per window
| Window type | Estimated price, installed | Notes |
|---|---|---|
| Standard replacement window | $500–$1,200 per window | Non-impact. Openings still need approved shutters in Port St. Lucie. |
| Impact replacement window | $800–$2,100 per window | Laminated, hurricane-rated. No shutters needed for that opening. |
Whole-house budgets
Window counts vary, but a typical three-bedroom Port St. Lucie house has somewhere around ten to fifteen openings. Multiplying out the ranges gives a starting budget:
| Number of windows | Standard (estimate) | Impact (estimate) |
|---|---|---|
| 5 windows | $2,500–$6,000 | $4,000–$10,500 |
| 10 windows | $5,000–$12,000 | $8,000–$21,000 |
| 15 windows | $7,500–$18,000 | $12,000–$31,500 |
Add the permit, any stucco and paint work, and any rotten bucks or frames found when the old windows come out. Sliders and big picture windows are priced on their own.
What moves the price on a Port St. Lucie job
- Impact or not. The biggest single swing. Impact glass costs more but takes shutters off the list.
- Size and design pressure. Larger windows, and openings on corners or upper floors that need a higher pressure rating, cost more.
- Frame material. Aluminum is common and usually cheaper; vinyl frames insulate better; prices vary by maker.
- Glass package. Low-E coatings, tints and higher-performance glass add to the price per window.
- Install method. Inset installs in block openings and fin installs in wood-frame walls are handled differently, and taking the old frame out completely means more stucco work than fitting a new window inside it.
- Paperwork. The city permit, notarized application and, on jobs of $5,000 or more, a recorded Notice of Commencement all add small costs.
- Opening condition. Water-damaged bucks or cracked stucco around older windows have to be repaired before the new one goes in.
- HOA rules. Communities that require a certain frame color or grid style can narrow product choices.
Why Port St. Lucie quotes disagree
Two quotes for the same house can be thousands apart because they describe different jobs. One installer may price aluminum frames and clear glass; another vinyl with Low-E. One may include the city permit, stucco patching and paint; another may list those as extras. Before comparing totals, line the quotes up window by window and check:
- the size, style and location of each window;
- the maker, frame material, glass and Florida Product Approval number;
- the design pressure each opening was rated for;
- whether the old frame comes out fully, and who patches and paints;
- whether the permit, fees, inspection, haul-away and cleanup are included;
- the payment schedule and what paperwork you get at the end.
Where these figures come from
We checked published Florida installer price guides and the City of Port St. Lucie's window and door permit application, which asks for the job's value, window count, product approvals and impact status. We did not find a public set of Port St. Lucie window invoices, so the ranges are labeled as estimates rather than a local average.
- City of Port St. Lucie window and door permit application (PDF)
- Florida window replacement cost guide
Window cost questions
What is the average cost to replace a window in Port St. Lucie?
As an estimate, $500–$1,200 for a standard-size non-impact window and $800–$2,100 for an impact window, installed. These come from Florida-wide pricing, not a local average, and exclude doors and oversized units.
How much to replace every window in a house?
Multiply your window count by the per-window range for a rough figure, then add permit, stucco and any frame repairs. With impact glass, a house with around a dozen standard-size windows lands roughly between $10,000 and $25,000 as an estimate.
Are impact windows worth the extra cost?
For most Port St. Lucie homes, yes: they replace shutters you would otherwise need to buy and handle, and they can earn a wind mitigation credit on insurance. Weigh that against the price gap on your actual quote.
Is the permit included in the price?
It should be listed. Ask each installer whether the quote includes pulling the City of Port St. Lucie permit, the fee and the final inspection, or whether those are extra.
Is there any help paying for impact windows?
Possibly. A 2026 Florida law refunds up to $500 of sales tax on impact windows and doors bought from July 1, 2026 through June 30, 2029 for qualifying homesteaded houses, and the My Safe Florida Home program has offered grants when it has funding. Check eligibility and current availability before you sign.
Why are my quotes so far apart?
Usually because they are not quoting the same thing: different glass, frame material, design pressure, install method, or one includes stucco and paint while another leaves it out. Line them up window by window.