HomeGuide puts interior door installation anywhere from $155 to $2,800, and Angi puts the average at $802, so the range depends on whose number you trust. That spread is not a mistake in the data. It is a disagreement about what a door installation covers, and once you know what to ask, you can read an estimate in five minutes.
I have taken a lot of door quotes. The ones that go wrong share one feature: a single number with nothing under it. Nobody can check a bare number. Give a contractor a list to price and quotes become comparable.
This page is that list, plus why the estimates conflict. Part price ranges live on our how to install an interior door guide.
Why Four Sources Quote Four Different Prices for One Door
Start with the conflict, because nobody explains it. There is no single national price, and the sources that look like they quote the same thing do not.
Angi, from 6,453 verified projects, puts the average at $802, with most homeowners paying between $363 and $1,241. HomeAdvisor lists the same band and average, but says a project can run $150 to $2,700. Homewyse puts the national average at $444 to $675 per door.
Read those three in sequence and they look like a scatter. They are three different questions.
Fixr says to expect $374 to $697 per new door, while HomeGuide lists a bedroom or closet door at $155 to $688 and a sliding, French, or double door at $383 to $1,711. Those ranges measure different jobs, not different opinions. A closet door and French doors are not the same quote.
So the honest summary is not one number. Murphy Door puts labor for a standard interior pre-hung door at $150 to $400, plus $50 to $300 for the door. A full project with door, frame and trim lands past $1,500.
Region matters as much as scope: labor in a high-cost metro runs well above national averages. Door type matters too, since a hollow-core passage door is the cheapest.
What a Written Quote Must Contain: Eight Line Items
Here is the part no competitor publishes. Not an average, not a range. A checklist. If a quote lacks each item here, it is an opening offer that grows once work starts.
One. The door unit and its type in words: hollow-core, solid-core, or engineered, and whether it is a slab or a prehung unit. A quote saying only “door” hides the material decision.
If you are still choosing, prehung versus slab door shows what each format drags into the job.
Two. The frame, with trim casing listed separately. Many quotes fold casing into labor to hide it.
Three. Hinges, and how many. Three is the norm. Heavy doors get four, and that fourth hinge separates a square door from a sagging one.
Four. The lockset or passage knob. Angi puts hinges at $3 each, locks and knobs $20 to $200.
Five. The labour rate per hour, and what it covers. Hanging and setting hardware are different tasks. Fixr says most installers charge $44 to $83 per hour, so a simple install can cost $44.
Six. Shims, caulk and sealant. Murphy Door suggests $50 to $150 extra for shimming in homes built before tighter tolerances.
Seven. Trim and painting. HomeAdvisor puts trim at $50 per linear foot, up to $5 for decorative. HomeGuide puts installing trim at $2 to $4.
Eight. Disposal of the old door. HomeGuide puts removing and disposing of it at $40 to $80. Hauling one from a second-floor landing becomes its own line.
If a quote has all eight, you can compare it to another in the same shape. If it has three, you cannot compare it to anything.
Slab Versus Prehung: Where the Material Cost Goes
This is the biggest driver, and it drives the material line. Angi says installing a slab door averages $300 to $500, while a pre-hung door runs $450 to $1,000 by material. HomeAdvisor agrees on the slab figure, materials and labor in.
The prehung figure sits higher because the frame comes attached. Murphy Door prices a hollow-core slab at $30 to $80 at any home center, a pre-hung hollow-core $100 to $250, a solid-core pre-hung $200 to $500. Fixr puts a prehung lauan slab at $365 to $679.
Beyond the standard, door style moves the number sharply: Fixr lists bifold $191 to $356, barn $425 to $791, pocket $1,008 to $1,876, French $1,076 to $1,999. By use, HomeGuide puts a bedroom door $150 to $700 and a closet door $150 to $400.
Murphy Door also warns that a contractor quoting you under $100 should make you ask what is included. The most useful warning in the search.
When Frame Condition, Reframing and Services Change the Price
Two doors, same slab price, same city, quotes differ by hundreds. Here is what moves the number.
Frame condition is the biggest lever and the one homeowners rarely price. A slab into a square, plumb frame is the fastest interior door install there is. A racked frame, or a rough opening needing reshaping, adds hours, and it is the frame, not the door, that turns two hours into six.
Adding a door where none exists is a different job from replacing one. It needs a new rough opening, framing, and possibly relocated services. Framing adds $100 to $300 per door, drywall separate.
Reframing an existing opening runs $250 or more, and Angi puts door reframers at $40 to $75 per hour. Widening a doorway runs $300 to $2,500, replacing a wood frame $220 to $370.
Services are the sleeper. Angi puts an electrician at $75 to $100 per hour to relocate wires and a plumber $45 to $200 per hour to move pipes. Fire-rated assemblies cost more.
Hardware follows the door. A passage knob with no lock is cheapest. A keyed knob or privacy lock adds money to both lines, since a larger bore takes longer to mortise.
If you want the mechanical side rather than the budget side, DIY versus professional door installation sets out which steps reward a first-timer and which punish one.
Reading the Estimate You Are Holding in Five Minutes
You have the number in front of you. Here is how to use it.
First, find the labor figure and divide it by the number of doors. When one quote covers windows and doors together, the window and door installation cost guide carries the combined pricing. A flat $1,200 for six doors is a different job from $1,200 for one, and a flat number hides which you have.
Second, check whether the door is in that quote at all. Murphy Door’s $150 to $400 labor figure plus $50 to $300 for the door is a different scope from a retail unit price. Comparing them compares a cart to an invoice.
Third, hunt for the hidden exclusions. No trim. No paint. No disposal. Each shows up later, and finding them avoids the week-two surprise.
Fourth, compare the total against Angi’s $802 average, which rests on 6,453 verified projects and is the broadest all-in number available. If the quote is well under $363 for a door with new frame and casing, ask what was left out.
If it is well over $1,241 for a single standard interior door with no framing work, ask what made it expensive. Sometimes it is a genuinely difficult opening. Sometimes you are quoted an exterior rate for an interior job.
Fifth, if you are doing the labor yourself, the number to check is not the installer’s total but the materials line, which is what a professional quote is mostly made of.
Getting the door and hardware list right before you buy is where how to measure an interior door pays for itself, since a wrong measurement cannot be recovered.
How to Get Quotes You Can Compare Line by Line
Do not call and ask what a door installation costs. That gets you a number with nothing under it, which is why so many cannot tell a fair quote from a padded one.
Instead, send the details. Door width and height, whether the frame is replaced or kept, whether there is an existing opening, the type of door, and whether you want trim and paint included. Say the number of doors. A description written like a specification produces a quote like one.
Get two or three quotes written down, not spoken. Written quotes compare line by line, and that is where the price lives. The gap between the highest and lowest is usually not greed but scope, stated or not.
Ask each one the same two questions: what is excluded, and what happens if the opening is out of square. The first tells you the real total, the second whether this company has done the work.
And if you are doing part of it yourself, decide which part before pricing. Removing the old door and hauling it is the easiest money you will save. Framing and patching turn a weekend into a month.
The interior door installation guide is where the mechanics live, and installing a prehung interior door covers a frame arriving hung.
Work through the eight line items on your estimate before signing, mark off each one you find, then take the marked-up quote to a second installer and compare.
Once you know what a fair quote contains, you can read yours in five minutes instead of arguing for a week.
