Door Insert or Full Door Replacement? How to Choose the Right Upgrade for Your Southwest Florida Home

"Do I need a whole new door, or can I just add glass to the one I have?"

We hear this question in our Fort Myers and Naples showrooms every week. The honest answer is that it depends on your door, your plans for the house, and the look you're after. Sometimes a decorative glass insert is all it takes to completely transform your entry. Other times, putting new glass in an old door is like putting lipstick on a pig, and we'll tell you so.

Here's how our design consultants and install team think it through, so you can walk in already knowing which direction makes sense for your home.

October 12, 2026

Author: Bonnie Doughty (CEO)

Contributors: Erica Vickers (VP of Operations), Mia Aviles (Sales Manager), and Scott Berger (Production Manager).

Same door, completely new entry. We cut into this existing six-panel door and added our Chelsea decorative glass design. The sidelight glass was swapped out with new impact rated Chelsea sidelights. The door kept its white finish, with no repainting needed.

In This Article

The Short Answer

A glass insert is usually the right choice when your door is in good shape, operates properly, is less than about 15 years old, and has a panel layout that accepts standard size glass. A full door replacement is usually the better investment when your door is older, isn't working properly, is damaged, is made of steel, or when you want a fully impact rated, permitted system or want a completely different look.

Glass insert

Full door replacement

Typical cost

Glass insert

$1,000 to $3,000 per door for standard designs and $2,000 to $7,000 per door for custom designs, depending on the design, the size, and whether you choose impact or non impact glass. For double doors, plan on twice the cost. Matching sidelights or a transom window are priced separately.

Full door replacement

$7,000 to $12,000 for a single door and $10,000 to $28,000 for a double door, depending on the size of the opening, your glass options, and the material (fiberglass, aluminum, iron, and more). Premium materials like stainless steel and bronze can run higher.

Impact rating

Glass insert

The glass we install is rated; the door itself is not certified

Full door replacement

The entire door system is tested and rated and inspected

Permit

Glass insert

Not pulled for insert only work

Full door replacement

Pulled by our team and kept on record with the county

Install time

Glass insert

About an hour per door

Full door replacement

6 to 8 hours, done in one day

Typical lead time

Glass insert

1 to 2 weeks (Express), 4 to 6 weeks (standard), 8 to 16 weeks (custom)

Full door replacement

About 8 to 12 weeks for fiberglass and aluminum; 20-30 weeks for iron

Painting

Glass insert

In most cases no painting is needed, though some minor touchup may be. The glass frame usually comes white or tan and can be painted or left as is.

Full door replacement

Fiberglass doors are installed primed and ready to paint (provided by others), Aluminum and Iron come pre-finished from the factory

Change material or entry layout

Glass insert

No

Full door replacement

Yes (in most cases)

Start Here: How Old Is Your Door?

The first question we ask is how old your door is. Once a door reaches 15 years or more, it usually starts to show its age: warping, decay, and wear that no adjustment will fix for long.

Age matters, and not for the reason most people assume. A door doesn’t become illegal when the code changes. Florida only requires current standards at replacement.

What changed is the engineering. In March 2012 Florida adopted a new wind design standard, and design pressures for every opening are calculated differently before and after that date. The code has been updated twice since. The most recent version took effect December 31, 2023 and adopted a new wind standard. For Fort Myers and Naples, the design wind speeds didn’t change. We’ve been inside Florida’s Wind Borne Debris Region since 2002, and impact rated openings have been the standard on new work here the entire time. If anyone tells you a recent code change forces you to replace your door, that isn’t accurate.

Here’s what most homeowners don’t know: an impact rating isn’t a glass rating. The door is tested as a complete assembly, frame and hardware and glass and weatherstripping together, and the approval covers the unit. Impact glass set into a 15 year old frame isn’t an impact rated door.

If you have a steel door, we almost always recommend replacing it. Steel doors will rust at some point, usually from the inside out, and once rust starts, you can’t stop it.

What Else We Look at Before Recommending an Insert

Age is the starting point, not the whole story. Before we recommend adding glass, we look at:

How the door works

Does it open, close, and lock correctly? Do you see light around the edges? Are bugs getting in and cold air leaking out?

The door slab

Is it delaminating, warping, or rusting (steel doors)?

The frame and trim

Is the frame rotting? Many builder grade doors have wood jambs that will eventually rot and warp.

The finish

How many times has it been painted? Some doors we see have too many coats of paint, and new glass won’t hide that.

Past damage

Holes from blinds screwed into the door, rusted hinges, worn handles.

Your hardware and weatherstripping

If you already need new hinges, handles, and weatherstripping, that money may be better put toward a new door.
The installation matters too

If a door was installed incorrectly to begin with, no adjustment is going to last. When we tear out old doors, we regularly find surprises: doors held in with only a few screws, improper bucking, or no insulation around the frame. When we install a new door, it's built and installed properly, insulated with spray foam, and fitted with all composite materials and new hardware. It's a genuinely fresh start.

How Impact Ratings Work With an Insert

This is one of the most important things to understand, and it’s a question we get constantly: “If I add impact glass to my door, is my door now impact rated?”
The short version

When we add an insert to your existing door, the glass we install is hurricane impact rated, but we can't certify the door as a whole.

That’s because we didn’t build or install the entire system, and we don’t know if your existing door is rated or how it was installed.

With a full replacement
The entire door system is tested and rated. We pull the permit and make sure every material meets code, and our own crew installs it. That permit stays on record with the county, so if you ever sell your home, you have proof the work was done and done to code. Buyers in Southwest Florida notice that.

Insert

Glass is rated. Door system is not certified.

Replacement

Entire system tested, rated, permitted, and inspected.

What Does Each Option Cost?

Price depends on how many doors you have, their size, and the options you choose. Here’s where most of our projects fall:
Standard inserts
$1,000 to $3,000

For most of our standard designs, depending on the design, size, and impact or non impact glass

Custom inserts
$2,000 to $7,000

For most custom designs, depending on the design, size, and impact or non impact glass

Full replacement
$7,000 to $25,000

Depending on the size of the opening, the number of doors, glass options, and material: fiberglass, aluminum, iron. Premium materials like stainless steel and bronze can run higher. Premium materials like stainless steel and bronze can run higher.

Some projects come in below these ranges and some come in above, but this is where most land. Because the glass is a large part of the cost either way, the real question is whether your existing door is worth investing in.

There’s one situation where that math flips: oversized panels. Most solid doors have raised panels, and sometimes those panels are larger than a standard size piece of glass. Once we get into custom size glass for an existing door, two things happen. The price goes up significantly, because it’s now a custom made piece of glass with a longer lead time. And while we can use impact rated components, we can’t say the finished unit has been tested and rated.

At that point, a custom insert in an older door, which can sometimes reach up to $7,000 or more, overlaps with the cost of a new door with standard glass, which starts around $7,000. When that’s the case, we’ll tell you. If you love our designs but your door needs it in a custom size, a new door can often be the smarter investment.

One more thing to know: once an impact insert is in a door, you’re committed to that door for a while. Moving hurricane impact glass into a different door later is very difficult, and the glass will very likely break in the process.

When a Glass Insert Makes Sense

Your door is in good shape

It works well, the frame is solid, and you like how it looks.

You want a big change for less

Going from a solid door to a door with glass completely changes your entry, inside and out, at a lower cost. We can also pair an insert with new hardware to update the whole entry with minimal work.

You want it done fast

Lead times are shorter, and installation takes only about an hour per door.

You're selling or may move soon

Realtors bring clients to us for exactly this. In neighborhoods where every house looks the same, adding glass to a solid door or refreshing an existing design, helps a listing stand out. If you’re staying less than five years, an insert is often the better fit.

You want to keep your paint

Your door usually stays its current color, with only minor touchup needed in some cases. The insert frame usually comes white or tan and can be painted or left as is.

Your HOA moves slowly

HOAs can be quicker to approve inserts over a full door replacement, especially if you are changing the layout or door material. 

From builder standard to showpiece. These six panel doors kept their paint, their hardware, and their frame. The only thing that changed is the custom glass which added beauty and light that wasn’t there before.

This homeowner was already renovating, so we added decorative glass to the existing doors. Same doors, and an entry that finally matches the rest of the house.

When a Full Door Replacement Is the Better Investment

Same opening, entirely new entry. We replaced these warped and cracked wood doors with these beautiful mediterranean iron doors, prefinished and installed in one day by our own crew.

Same opening, entirely new entry. We replaced these standard fiberglass doors with our Roma iron doors, prefinished and installed in one day by our own crew. Drive down this street now and you’ll know exactly which house it is.

A Bonus Worth Knowing: What Impact Glass Does Beyond Storms

Whichever route you choose, impact glass brings benefits past hurricane season:

No shutters

If you’re a snowbird who isn’t here all season, a fully impact rated door means no roll downs or plywood to deal with.

Security

Impact glass is extremely difficult for an intruder to get through.

Quiet

Our owner, Bonnie, noticed this herself: her previous home didn’t have impact glass, her current one does, and the outside noise is roughly cut in half.

Questions Homeowners Often Ask

Glass adds weight to a door that didn’t have it before. Our installers use longer screws in the hinges and adjust the door to allow for that weight so it keeps operating properly. Most homeowners are pleasantly surprised: a foam filled fiberglass or steel door is fairly light, and with glass, it feels much more solid and substantial when you open it.

Usually, yes. If your existing glass is set in a frame, we can take it out and replace it. Some doors have glass set directly into the door, though, and in that case a swap may not be possible and a door replacement is the way to go.

 

Yes. We have decorative options, like etched, leaded, stained, and bubble glass, that can be added behind your existing clear glass. You keep the glass you have already paid for and gain design and privacy, without paying for impact glass all over again.

No. In most cases we can add an insert to the top 1/2 or 3/4 part of your door, but it will be dependent on your panel layout and size.

Not in most cases. Impact glass can break. It isn’t break-proof or bulletproof. When something hits it hard enough, the glass may crack but holds together, thanks to its strong inner layer. It keeps your home sealed and safe. Think of it like your car’s front windshield, or a surge protector that sacrifices itself to protect everything else. Replacing glass that has done its job is typically a homeowners insurance matter, depending on your policy.

You can, and it does cost less, but very few of our clients go that route unless they have a permanent shutter system. If your windows are impact rated and your door glass isn’t, that door becomes the weak point. When a storm breaks through, the pressure change inside the home can cause serious damage, including to the roof. We’ll walk you through how this works so you can make an informed choice.

HOAs rarely reject inserts, and our team provides the documentation they need: photos of your chosen design, business licenses, and anything else needed. We also keep a log of the communities we’ve worked in, so we can often show your HOA that the same design is already installed in your neighborhood. Some communities now require a permit before approving a door replacement, which can add time, but we handle that too.

With an insert, usually not, though some minor touchup may be needed. The glass frame usually comes white or tan, and you can paint it or leave it as is. With a full replacement, most of our doors arrive primed and ready to paint, so painting is an additional step to plan for. Iron doors and aluminum options come prefinished.

 

For inserts, most of the time we can order from a good, clear photo of your door. If there’s any doubt, we’ll come out and measure. For full door replacements, we always come measure in person.

Lead Times and Install Day

Express Inserts
1 to 2 weeks
Three of our most popular designs, kept in stock. Depending on the schedule, we’ve even installed them the next day.  
Standard inserts
4 to 6 weeks

Standard designs ordered from one of our top manufacturers. 

Custom inserts
6 to 10 weeks

Could be longer for some of our highly custom work.

Standard prehung doors
8 to 12 weeks

For fiberglass and aluminum. Iron doors will usually run closer to 20-30 weeks.

Install day for an insert

We never cut your door inside your home, so you don’t have fiberglass dust drifting through the house. Our installers take the doors off the hinges, one at a time, and cover the opening with a drop cloth to keep bugs and dust out and your air conditioning in. They measure and cut the opening, install the glass, and rehang the door. With double doors, they repeat the process, then make final adjustments once everything is back together. Plan on about an hour per door.

Install day for a full replacement

A full replacement takes approximately 6 to 8 hours with 2 to 6 of our installers (depending on how heavy the doors are), and is done in one day. Inspection, performed by the permitting department, is typically able to be scheduled the following day. We pull the permit, coordinate with the municipality, schedule the inspection around you, and keep you updated if anything changes.

What You Can Expect From Our Team Either Way

Whether you choose an insert or a new door, you’re working with one team from design through installation.

Our own installers

Many door companies in our area don’t install at all, so you don’t know who will show up or who will stand behind the work. Our crew works for Glass Design. We won’t be the cheapest in town, but it will be done right, and if something isn’t right, we’ll make it right.

Care for your home

Blankets go down inside and out, furniture is moved as needed, and customers regularly tell us their entry was cleaner when we left than when we arrived.

Communication

We call the day before, our installers call when they’re on the way, and your customer portal and design consultant keep you updated from ordering through install. If a lead time changes, you’ll hear it from us first.

Warranty support

If there’s ever a warranty issue, you come to us. We work with the manufacturer on your behalf and handle any reinstallation, so you’re never left to deal with it alone.

Thirty years of being here

We’ve been serving Southwest Florida since 1996, and we’re still here long after the job is done.

Come see it in person

Glass changes with the light, and a photo can’t tell you how a design will feel in your entry. Our Fort Myers and Naples showrooms hold a large selection of impact doors and door glass, with full doors and glass designs on display so you can see them at full size, touch them, and judge the privacy and light for yourself. Sit down with a Design Consultant who will walk you through the options and help you find what’s right for your home, your heart, and your budget. Bring a photo of your entry and we’ll tell you honestly whether you need a new door or just new glass. We recommend scheduling an appointment. It lets us set aside the right amount of time for you, so nothing about your visit feels rushed.

Fort Myers showroom
Naples showroom

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