Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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AfterFast, Reliable Windows & Doors Across Sanibel
Window and door work on Sanibel is not a simple swap-out job. Between the Land Development Code height caps, FEMA Base Flood Elevation requirements, and the salt air that eats standard hardware in a single season, every opening you touch has to be specified, flashed, and fastened for a barrier island. Barrett & Sons Construction has been navigating exactly that since 1998. We handle Windows & Doors from first measurement to final inspection, with every scope change in writing before a saw starts. If you’re looking for impact-rated units, replacement windows, or new sliding glass doors on Sanibel, call Tom Barrett’s team at (877) 610-1318 and we’ll give you a straight answer on what your home actually needs.
Why Barrett & Sons Construction Is Sanibel’s Preferred Windows & Doors Company
Tom Barrett puts his name, address, and license number on every contract. That matters on Sanibel, where a lot of homeowners have already been through one round with a mainland outfit that quoted over the phone and changed the number at the driveway. We don’t run crews that way. Tom’s sons lead our window and door teams, and they’re the ones walking your property, pulling your old frames, and signing off on the finished openings.
Sanibel’s post-Ian rebuild has brought a flood of contractors to the island. Many of them don’t know the local compliance traps. We do, because we’ve been working the island long enough to know where the 30-foot overlay zones sit and which stilt homes have ground-level enclosures that can’t legally take a solid impact wall. Scheduling runs through our Miami-area office, and crews serve Sanibel directly, with no trip charge inside the county. Ask anyone on your street, or look up the license number yourself.
A live person answers the phone 24 hours a day, seven days a week. Not a call center. Not a voicemail box. When you call about windows or doors on Sanibel, you get a person who knows what a breakaway wall is and why your bottom plate flashing matters more here than it does in Fort Myers.
Our Windows & Doors Services in Sanibel
Window Installation
New window installation on Sanibel almost always means working inside an existing structure that has already settled, shifted, or been partially rebuilt. We measure every rough opening before we order a single unit. For slab-on-grade cottages from the 1960s and 70s, we regularly find that salt air has corroded the original aluminum frames to the point that the rough openings are no longer square. We reframe as needed and document every added cost before it happens. No surprise invoices.
Door Installation
Exterior doors on Sanibel fail fast if the threshold elevation is wrong. A door set to original grade on a home that now sits in a FEMA A-zone or V-zone creates a lower-level opening that won’t pass inspection sign-off. We set thresholds to the correct Base Flood Elevation for your property, install corrosion-resistant hardware, and flash the entire rough opening for driven rain. On stilt homes, we also verify that ground-level door openings remain breakaway-compliant where the code requires it.
Window Replacement
Replacing windows on Sanibel usually costs $4,500 to $15,000 for a typical home, depending on count, size, and whether you’re moving to impact-rated glass. We stock and install Simonton and PGT units and can source Ply Gem when the spec calls for it. Every replacement includes new flashing, proper weep detailing, and fasteners rated for coastal exposure. Hot-dipped galvanized or stainless only. Standard zinc hardware rusts out here in months.
Impact Windows & Doors
Impact-rated windows and doors are the baseline on Sanibel, not the upgrade. After Ian, most homeowners discovered that wind mitigation insurance discounts require the entire opening to be protected, not just the glass. We install full impact systems including laminated glass, reinforced frames, and proper screw patterns that satisfy current Florida Building Code 8th Edition. Impact window installation on Sanibel typically runs $8,000 to $25,000 depending on the number of openings and the product line.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Sanibel
We install and service units from PGT, Simonton, and CGI. These are brands you can look up, with published engineering data for Miami-Dade and Florida Building Code compliance. For Sanibel customers, we keep common replacement hardware in our local inventory so a broken latch or failed sash balance does not leave an opening unprotected for weeks. When a warranty repair is needed, we handle the claim directly with the manufacturer. That means you deal with one company, not a phone tree.
Common Windows & Doors Problems We See in Sanibel Homes
After years of post-Ian rebuilds and decades of salt air before that, certain failure patterns show up again and again on Sanibel. Here are the four we see most often:
- Rust streaks below window frames on stilt homes. Standard galvanized fasteners used on mainland jobs can’t survive Sanibel’s salt air. Within one season, you’ll see brown staining running down the new frame. We use hot-dipped galvanized or stainless fasteners, and we’ll replace the cheap stuff when we find it.
- Water intrusion at the sill where the elevated floor system meets the wall. Impact windows installed without proper flashing on elevated homes leak at the sill. The fix is new flashing, correctly lapped, plus sealant rated for continuous coastal exposure.
- Door thresholds set to original grade instead of Base Flood Elevation. This is a direct inspection fail on Sanibel. A door that sits too low becomes a lower-level opening under FEMA rules, and the final inspection will not sign off.
- Breakaway wall violations in ground-level storage areas. Solid impact walls and glass enclosures in the lower level of a stilt home can violate the breakaway requirement that protects the pile system during storm surge. We know which ground-level openings can take glass and which cannot.
How Sanibel’s Height Caps, Flood Rules, and Salt Air Change Window and Door Work
Here’s what no generic contractor page tells you. Sanibel’s Land Development Code caps building height at 45 feet island-wide, but many residential overlay zones restrict structures to 30 feet or less measured from grade. As homeowners elevate rebuilt homes to meet rising FEMA Base Flood Elevations, the combined pile height plus finished floor plus roof pitch regularly bumps against those hard limits. That affects window and door placement directly. A tall sliding glass door on an elevated home eats into the permissible height budget, and sometimes the solution is a shorter door unit or a different lintel design. Mainland crews who assume Florida barrier-island rules match Lee County mainland standards get this wrong. It’s a compliance trap unique to Sanibel, and we design openings around it from day one.
On a recent job on Periwinkle Way, our crew opened up a 1970s slab-on-grade cottage for a window replacement and found the original aluminum frames had corroded so badly from salt air that the rough openings were no longer square. We reframed two load-bearing walls, brought the rough-in up to current FBC 8th Edition, and wrote a change order for the added structural work before touching the new impact-rated units. The homeowner got a signed change order before we touched anything. That’s how we keep surprises out of the draw schedule.
Pricing for Windows & Doors in Sanibel, FL
Window and door pricing on Sanibel runs higher than mainland Lee County, and there’s an honest reason for that. Every project has to cross a single rebuilt causeway, every opening has to meet stricter coastal code, and every fastener has to be upgraded for salt exposure. Here’s what you should plan for:
| Service | Typical Sanibel Range |
|---|---|
| Impact Window Installation | $8,000 - $25,000 |
| Window Replacement | $4,500 - $15,000 |
What moves the number? Opening count, product line (PGT versus Simonton versus CGI), existing frame condition, and whether structural reframing is required. We give written line-item quotes, and every price change arrives as a written change order before work proceeds. Call (877) 610-1318 for a free estimate. You’ll get a real number from a real person.
We Also Serve Cities Near Sanibel
While this page focuses on Windows & Doors in Sanibel, our crews also work regularly in Fort Myers Beach, Iona, Cypress Lake, and McGregor. If your home is on Sanibel or anywhere nearby in Lee County, the same rules apply: written quotes, permits pulled, and a 90-Day Done Right Promise on every completed job.
Serving Sanibel, FL - Our Local Coverage Area
We’re based in the Sanibel area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Windows & Doors in Sanibel
Yes, they can. Sanibel’s Land Development Code caps structure height at 45 feet island-wide, with many residential overlay zones at 30 feet or less. If your home is already near the cap and you’re changing window or door dimensions, the revised openings can push the structure over the limit. We check the applicable height and overlay requirements before we order anything. Call (877) 610-1318 if you’re unsure whether your project triggers review.
We treat pre-FEMA-elevation homes as a rebuild-in-part. The existing rough openings often don’t meet current FBC 8th Edition requirements, and the sill elevation may sit below the current Base Flood Elevation. We document the existing conditions, write any required structural upgrades as a change order before work starts, and bring the opening into compliance without pushing the home’s overall height over the cap.
Sometimes, but not always. FEMA and Florida code require breakaway walls in ground-level enclosures so storm surge doesn’t rip the pile system apart. Solid impact glass in those lower openings can violate that requirement. We evaluate each opening against the breakaway standard and install compliant units only where the code allows. Call us before you buy lower-level windows, because a mainland supplier may sell you something Sanibel’s inspector won’t approve.
Sanibel window and door installations require hot-dipped galvanized or stainless steel fasteners, and sealants rated for continuous salt air and UV exposure. Standard zinc hardware will rust out within one season and show streaks down your new frames. We also use flashing details specific to elevated floor systems, because water intrusion at the sill is the most common failure point on stilt homes.
In most cases, you need the whole opening protected, not just the glass. The insurance wind mitigation credit typically requires that every opening (windows, doors, garage, skylights) be protected or impact-rated. Installing impact glass in some windows while leaving an old door or skylight unprotected can disqualify the discount. We’ll inspect your entire home and tell you exactly what the wind mitigation form requires. Call (877) 610-1318 to schedule a free estimate.
Contact Barrett & Sons Construction
If you need windows or doors on Sanibel, start with a conversation. We’ll ask about your home’s age, elevation, and current openings, then give you a straight answer on scope and cost. Quotes are free. The number is (877) 610-1318. You’ll talk to a person, not a phone tree, and you’ll get Tom Barrett’s name on the contract, not a faceless franchise. We stand behind every window and door we install with the written 90-Day Done Right Promise. Call today and get the job quoted right.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Sanibel since 1998.