Last winter I pulled a 30-year-old steel door off a hinge and the bottom corner crumbled in my hand like a stale cracker. Rust had eaten through from the inside out, fed by a threshold that had been leaking for a decade. The homeowner thought he needed a $300 slab. He needed a new frame, a new sill, and rot repair to the subfloor. That job ran closer to $2,400 by the time we were done.
Front doors fail in slow motion, and most people only shop for one after a break-in scare or a draft they can feel from the couch. The good news is that a quality entry door is one of the better dollar-for-dollar upgrades a house can get. The tricky part is that the price you see on the showroom tag is rarely the price you pay installed.
I want to walk you through what steel, fiberglass, and wood actually cost, how long each lasts in the real world, and the install factors that quietly double a quote. This is the stuff I see every week with a tape measure in my hand.
What an Entry Door Replacement Really Costs
A front door project breaks into three buckets: the door unit itself, labor, and the extras nobody mentions until they open the wall. Knowing where the money goes helps you read a quote like a tradesman instead of a tourist.
Here is how a typical mid-range install pencils out:
- Door unit (slab or pre-hung): roughly $250 to $2,500 depending on material and glass.
- Labor: typically around $350 to $900 for a standard swap.
- New frame, jamb, or sill: add $150 to $600 if the old one is shot.
- Rot or framing repair: $200 to $1,200 when water has done damage.
- Permit (where required): usually $50 to $200.
A clean, like-for-like replacement where the frame is sound is the cheap path. The moment we have to re-frame a rough opening or chase rot into the wall, the labor line jumps. I always tell folks to budget a 15 percent cushion for what we find behind the trim.
A slab is just the door panel. A pre-hung unit comes mounted in its own frame with hinges and a sill, and it is almost always the smarter buy on a replacement because it gives you a fresh, square, weather-sealed opening. Slabs only make sense when the existing frame is genuinely in good shape.
Steel Doors: The Budget Workhorse
Steel is the value pick. An insulated steel pre-hung runs roughly $250 to $900 for the unit, and installed you are usually looking at $600 to $1,500 all in.
The strength is real. A solid-core steel door resists kicks and pry bars better than people expect, which is why I like them for side and back entries that face an alley or a dark yard. The weakness is the skin. Once that thin steel face gets dinged or scratched and moisture sneaks in, rust starts, and you cannot really sand it out like wood.
Steel also conducts temperature. In a cold climate the inside face can sweat and frost at the edges, and over years that moisture is what killed the door I described up top. Keep the threshold sealed and the door has a fair shot.
Fiberglass: The Low-Maintenance Middle
If a homeowner asks me what I would put on my own house, fiberglass is usually my answer. The units run roughly $500 to $2,000, and installed you tend to land between $900 and $2,500.
Fiberglass does not rust, does not rot, and does not swell when the humidity climbs. The better ones are molded to mimic wood grain so well that you have to knock on them to tell. It handles sun and salt air without the constant upkeep wood demands, which matters if your entry takes a beating from weather.
Fiberglass can crack on a hard impact, unlike steel which dents. But a cracked panel is rare, and most quality fiberglass doors carry long warranties. Pair it with the same exterior discipline you would give the rest of the house. The same logic behind smart exterior preventive repairs applies here: a $15 tube of caulk every couple of years protects a $1,500 door.
Wood: The Beautiful High-Maintenance Choice
Nothing matches a real wood door for warmth and street presence. Solid wood and engineered wood units run roughly $600 to $4,000 and up, and a high-end custom mahogany install can climb past $5,000 once you add labor and finishing.
The catch is that wood is alive. It moves with the seasons, soaks up moisture, and needs refinishing every two to four years if it faces direct sun or rain. Skip that maintenance and you get cracking, warping, and a door that sticks every August. I have rehung wood doors that were perfectly straight in the spring and bowed by midsummer.
Wood earns its keep on a sheltered entry with a deep porch overhang, or on a historic home where nothing else looks right. Out in the open, exposed to weather, it is a commitment most people underestimate.
Steel vs Fiberglass vs Wood: Side by Side
Here is the honest comparison I give clients before they fall in love with a showroom display.
| Factor | Steel | Fiberglass | Wood |
|---|---|---|---|
| Installed cost | $600 - $1,500 | $900 - $2,500 | $1,200 - $5,000+ |
| Lifespan | 15 - 25 years | 25 - 40 years | 20 - 50 years (with upkeep) |
| Upkeep | Low, but rust is the enemy | Very low | High, refinish every 2 - 4 years |
| Main risk | Dents and rust from moisture | Can crack on hard impact | Warps, swells, rots if neglected |
| Best for | Budget jobs, secure side doors | Most homeowners, exposed entries | Sheltered porches, historic homes |
The verdict
For most US homeowners, fiberglass wins. It costs more up front than steel, but the near-zero maintenance and long life make it the cheapest door over 20 years. Choose steel when budget is tight or security is the priority, and reserve wood for a protected entry where you genuinely want the look and will keep up with the finishing.
Install Factors That Move the Price
The door material sets the floor, but the opening sets the ceiling. These are the things that swing a quote the most.
- Glass and sidelights: a half-lite with decorative glass adds $200 to $800, and full sidelights or a transom can add $1,000 or more.
- Hardware: a basic lockset is cheap, but a quality smart lock or multi-point system adds $150 to $500.
- Out-of-square openings: older homes settle, and a racked opening means shimming, re-framing, and extra hours.
- Rot and water damage: the wildcard, and the reason I never quote a final number until the old unit is out.
Door and window crews can lean hard on pressure tactics, the same playbook you see in roofing. If a salesperson is pushing a same-day signature for a "today only" price, slow down. The tactics that help you avoid roofing scams work on door installs too: get it in writing, confirm the brand and model number, and never pay the full balance before the work is done.
Should you DIY it?
A pre-hung swap into a clean, square opening is doable for a confident DIYer with a level, shims, and a free Saturday. The trouble starts when the opening is not square or there is hidden rot, because a door that is even slightly out of plumb will swing open or shut on its own and never seal right.
If you can hang a pre-hung door true, plumb, and weather-tight, you can save the labor. If that sentence made you nervous, hire it out. A poor install wastes the money you spent on a good door. Honestly, picking a door is lower stakes than some yard calls, like deciding between laying sod or seeding a new lawn, where one wrong move costs you a whole growing season.
How long does an entry door installation take?
A straightforward pre-hung replacement runs two to four hours. If the frame needs rebuilding or we find rot, plan for most of a day, sometimes two if framing repairs need to cure or set.
Does a new front door actually add home value?
Yes, and it is one of the more reliable returns in remodeling. A clean, energy-efficient entry door improves curb appeal and is one of the first things a buyer touches, so it punches above its cost at resale.
Can I just replace the slab and keep my old frame?
Only if the frame, jamb, and sill are square, solid, and sealed. If there is any rot, racking, or daylight at the threshold, replace the whole pre-hung unit. A new slab on a bad frame still leaks and sticks.
A front door is the one upgrade your hands touch every single day, so it is worth getting right. Match the material to your climate and how exposed the entry is, budget a little extra for whatever hides behind the trim, and make sure whoever installs it gets the thing plumb and sealed. Do that, and you will not think about your door again for twenty years, which is exactly the point.
