What It Actually Costs to Replace Every Window in a Fort Myers House
Replacing all the Windows & Doors in a Fort Myers home runs between $8,000 and $25,000 for a typical house with 12 to 20 openings, using impact-rated glass - but that number shifts fast once the Lee County permit fee and inspection timeline hit the spreadsheet. Most whole-house cost guides online ignore the local permitting layer entirely. If you’re pricing this out right now, call us at (844) 638-7249 and we’ll give you a line-by-line number that includes permit costs, window-by-window sizing, and the inspection schedule, not just a per-window average that falls apart the moment your house has a picture window or a sliding door in the mix.
The Lee County Permit Nobody Talks About When You’re Getting a Whole-House Window Estimate
When you swap every window in your home for impact-rated units, Lee County requires a building permit. That permit isn’t a formality. The fee gets calculated on the total permitted project value - typically 1.5% to 2.5% of what the job costs - and then the inspection clock starts ticking. First comes the rough-in inspection before interior trim and casing go back on. Then, once everything is finished and watertight, a final inspection closes the permit. Between those two visits, count on one to three weeks added to your project timeline that a generic online cost calculator simply does not factor in.
We’ve pulled permits in this county for over a decade. Derek Hollenbeck grew up in the Iona area and has been working construction across Lee County long enough to know which inspectors want the flange screws checked before the trim carpenter even shows up. That’s not something a nationwide window replacement chain operating out of a call center in another state can handle. Our Windows & Doors in Fort Myers team manages the permit application, the inspection scheduling, and the door-knock coordination so you’re not burning a vacation day waiting on an inspector who might show up between 9 and 2.
Why a Per-Window Average Price Is Worthless Without a Room-by-Room Count
A Fort Myers home in a neighborhood like Whiskey Creek or along the McGregor corridor might have 14 to 20 window openings, and they won’t all be the same size. A standard 3/0 by 4/0 double-hung in impact glass sits at one price point. A large fixed picture window facing the Caloosahatchee, or a sliding glass door that opens to a lanai, costs three to five times more per opening. Slap an average across those and you get a number that looks neat on a website but means nothing when the estimate hits your kitchen table.
We’re home to a full-scope window and door operation - from a casement in a guest bathroom to a multi-slide patio door that spans fourteen feet. Our team sizes every opening individually, accounts for the exposure (coastal spray zone versus inland suburban lot), and builds the quote around real product specs, not ballpark math.
Here’s how whole-house window replacement costs break down in Fort Myers right now:
| Project Scope | Cost Range (Installed, Impact-Rated) |
|---|---|
| 10-14 openings, standard double-hung mix | $8,000-$14,000 |
| 15-20 openings, including one large slider or picture window | $15,000-$20,000 |
| 20+ openings, multiple sliders, custom sizing | $20,000-$25,000+ |
| Lee County permit fee (project value-based, ~1.5-2.5%) | $200-$600 (not included in above) |
These numbers assume impact-rated glazing - and in Fort Myers, in a Wind-Borne Debris Region with 160+ mph design wind speeds, that’s really the only sane choice if you want new windows that save energy. Non-impact glass in a whole-house replacement is a short-term savings that doesn’t hold up against the next tropical system churning through the Gulf.
The Andersen vs. Marvin Decision: It’s Not Just a Brand Preference
We carry both Andersen and Marvin impact product lines because the right spec depends on where your house actually sits. A home a mile inland off Summerlin isn’t fighting the same salt spray and humidity load as a waterfront property on Estero Boulevard. Andersen’s 100 Series offers a solid, cost-efficient fiberglass-composite frame that handles moisture well and hits a lower price point. Step up to the 400 Series and you get wood interior options and tighter design pressure ratings for exposed elevations. Marvin’s Essential line gives you a fiberglass exterior with a clean, modern sightline; their Signature line goes into Custom Windows & Doors territory - arched tops, oversized fixed units, anything a standard extrusion can’t do.
Derek will walk you through the differences based on your elevation, your floor level, and what you’re willing to spend. We spec windows the way we’d spec them on our own houses - not just whatever the supplier has overstocked that month. And because we’re a full-scope construction company, not a window-only installer, we can coordinate window rough-in heights with any floor elevation work that might be coming - which matters a lot in Fort Myers right now.
Post-Ian Flood Zones Changed the Game for Window Replacement Heights
After Ian, FEMA advisory maps raised base flood elevations by two to four feet across dozens of Fort Myers parcels. If your house is getting elevated - and plenty are - the window rough-in heights move up when the finished floor does. That means your window replacement scope has to lock arms with foundation and framing sequencing, not run on a separate track. When a window company shows up to a house where the slab is about to get lifted 36 inches, you’ve got a scheduling mess. We handle foundation, framing, and window installation under one roof, so the sequence is baked into the project plan from day one.
We don’t just break ground - we build something worth standing on.
How the Numbers Work Financially From the First Conversation
A whole-house window replacement in Fort Myers typically lands between $15,000 and $30,000. That qualifies for our $1,000 off projects over $10,000, and with 0% financing for 18 months, you’re not fronting the entire cost in one check. We lay out the payment structure during the estimate - upfront pricing with no buried change-order fees - because we’ve been doing this in Lee County long enough to know that homeowners here have been burned by vague bids and disappearing crews, especially in the rebuilding wave after the storm.
Our technicians show up background-checked and in uniform. Our phones get answered by a live person, 24/7 - not a voicemail box that fills up on Friday afternoon. If something comes up mid-project, you reach a human. That matters when your house has open window openings and a thunderstorm is rolling in off the Gulf.
FAQs
Whole-house window replacement in Fort Myers runs $8,000 to $25,000 for impact-rated glass across 12 to 20 openings, with larger sliders and picture windows pushing the number toward the higher end. Lee County permit fees add roughly $200 to $600 depending on total project value. Call (844) 638-7249 for an exact quote built around your specific window count and sizes - estimates are free and include the permit cost from the start.
If your windows are pre-2002 single-pane units with failing seals or wood rot in the frames, replacement costs less over a Fort Myers home’s ownership cycle than chasing repairs - especially because impact-rated replacements qualify for insurance premium reductions - Do Impact Windows Lower Insurance? (Fort Myers, FL) - that repair jobs can’t trigger. We’ll give you an honest assessment on the first visit: if they can be saved, we’ll say so. If they can’t, we’ll show you the math. Call us at (844) 638-7249.
Yes - Lee County requires a building permit for window replacement when impact-rated glazing is being installed. The permit triggers a rough-in inspection and a final inspection, which adds one to three weeks to the project timeline. We handle the entire permit process in-house so you’re not chasing paperwork or scheduling inspectors yourself.
We can replace every window in your Fort Myers home in a single project cycle. A whole-house job with 15 to 20 openings typically takes three to five working days for installation, plus the inspection window. We stage the work room by room so you’re not living in a construction zone, and the site gets cleaned at the end of every day.
If you’re ready to get a real number - one that includes the permit, the inspection timeline, and window-by-window sizing for your actual house - call us at (844) 638-7249. We’ll walk the property, spec the right product tier, and hand you a quote with upfront pricing and no surprises. With $1,000 off projects over $10,000 and 0% financing for 18 months, a whole-house window replacement in Fort Myers is financially structured from day one, not something you figure out after the contract is signed.
Written by Derek Hollenbeck, Owner & General Contractor, Groundwork Construction Co. of Fort Myers, serving Fort Myers, FL.
What Our Customers Say
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