How much does interior door installation cost?

Hiring a pro to install interior doors runs about $400 to $2,500 for several doors, depending on count and door type. DIY materials are roughly $150 to $1,000.

Prehung or slab door?

Prehung doors come in their own frame and are far easier to install square. A slab swap is cheaper but only works if the existing frame is still true and you can mortise the hinges accurately.

Are solid-core doors worth it?

For bedrooms, bathrooms, and offices, yes. Solid-core doors block noise much better than hollow-core and feel higher quality, for roughly $40 to $100 more each.

Can I install an interior door myself?

A prehung door is a reasonable weekend DIY if you take time to shim it plumb. Slab swaps are trickier because of the hinge mortises and latch alignment.

How long does it take?

An experienced installer does a prehung door in under an hour. A first-time DIYer should budget a couple of hours for the first one, then it speeds up.

UPDATED JUNE 2026

Interior Door Installation Cost in North Carolina

Locally calibrated hire vs. DIY cost data for interior door installation projects in North Carolina. Cited sources, permit requirements, and a full build guide, free.

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HIRE A PRO

$400–$2,300

Fully installed, labor + materials

DIY COST

$100–$900

Materials + rentals, your labor free

Moderate

Requires some construction knowledge and proper planning.

Government Data · Government Data · Submitted Quotes (n=0)

How we got these numbers

National benchmark costs from RSMeans, Angi, Fixr, and HomeGuide are adjusted for North Carolina using two federal datasets: the Bureau of Economic Analysis Regional Price Parity (RPP) index and the Bureau of Labor Statistics (BLS) Occupational Employment and Wage Statistics. North Carolina's RPP is 0.9 (national baseline = 100) and its BLS labor adjustment factor is 0.93. Higher RPP means goods and services cost more relative to the national average; the BLS factor scales contractor labor rates to local wage levels. We blend these two adjustments, weighted 40% RPP, 60% BLS labor, to produce the ranges shown above.

adjusted_cost = national_benchmark × (0.4 × RPP/100 + 0.6 × bls_labor_adj)

RPP(North Carolina) = 0.9 · BLS adj = 0.93

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What's included

Item	Qty	Unit Cost	Subtotal
Prehung interior door	4 doors	$130	$520
Shims and finish nails	1 set	$25	$25
Hinges and knob set	4 sets	$30	$120
Caulk and touch-up paint	1 set	$30	$30
Materials Total			$695

Tools you'll need

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TOOLS YOU PROBABLY OWN

Drill and driver bits
Level and shims

TOOLS TO RENT OR BUY

Chisel and door hardware jig
Buy a hinge jig only if doing a slab swap

Build sequence

1
Remove the old door and, for a prehung unit, the old frame.
2
Set the new prehung unit in the opening and shim it plumb and level.
COMMON MISTAKE
An out-of-plumb frame makes the door swing open or shut on its own.
3
Nail through the jamb at the shims into the framing.
4
Check the reveal gap around the door is even, then hang and test the door.
5
Add trim, caulk, and paint touch-ups.

Permits and code requirements

PERMIT REQUIREMENTS

Permit rules for interior door installation vary by city and county in North Carolina. Most structural, electrical, plumbing, or mechanical work needs a permit and an inspection. Confirm with your local building department, or see the North Carolina guide for specifics.

PERMIT THRESHOLD

Varies by municipality

Disclaimer: Always verify permit requirements with your local building department before starting work. Requirements vary by municipality and are updated periodically.

Frequently asked questions

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UPDATED JUNE 2026