Exterior Door Replacement Cost in Massachusetts

What it costs

Published 2026 data puts exterior door installation at an average of about $1,218, with most projects between roughly $497 and $1,961. Labour alone runs about $230 to $1,300 depending on type and size. Replacing a front door with a basic single unit in the same opening runs about $500 to $2,500 installed; door slabs themselves start near $200 and go well past $1,000 for a standard 36 by 80 opening.

Where it climbs is when the opening changes size, when sidelights or a transom are added, or when the existing frame and sill have rotted and the job becomes carpentry rather than a swap.

Slab, pre-hung or full-frame

A slab replacement reuses your existing frame and hinges and just swaps the door itself. It is the cheapest option and it only works when the existing frame is square, sound and the same brand of hardware geometry. On a house older than about thirty years, that is a bigger assumption than it sounds.

A pre-hung unit comes as door, frame, hinges and threshold together and gets set into the rough opening. This is what most replacements should be, because it resets the geometry rather than inheriting whatever the last hundred winters did to it.

Full-frame with exterior trim removed goes a step further and lets the installer see and flash the sill and the sheathing behind it. On any door where water has been getting in — and the giveaway is a soft threshold or a stained floor inside — that is the only honest fix.

What survives here, and what does not

• Fibreglass is the default recommendation in New England. It does not swell in humidity, does not rot, and holds a finish through freeze-thaw far better than wood.
• Steel is the best value and perfectly good in a sheltered entry. It dents, and a dent in a steel door is permanent, so it is a poor choice where bikes and hockey bags go through.
• Wood is the best-looking and the highest maintenance. Under a covered porch it lasts decades. Fully exposed on a west-facing wall it will need refinishing every few years — the same exposure that eats exterior paint.
• The threshold matters more than the door. An adjustable sill with a proper pan flashing underneath is what stops water. Ask specifically whether a sill pan is included; on many quotes it is not.
• Weatherstripping and a tight sweep are what you actually feel in January. A cheap door installed and sealed well outperforms an expensive door installed carelessly.

Doors are permitted work, and one door is not optional

Replacing an exterior door is not on the exempt-work list in 780 CMR chapter 51, section 105 R105.2 — painting, tiling, cabinets and countertops are, doors and windows are not. Here is what does and does not need a permit.

There is also a code requirement people do not expect: a dwelling needs at least one side-hinged exit door of a minimum size, and it has to be reachable without passing through a garage. If you are replacing your only conventional entry door with something narrower, or converting an entry to a slider, that is a conversation to have with the building department before ordering.

As a Registered Home Improvement Contractor we file the permit in our name and meet the inspector. Doors are part of our windows and doors service, quoted the same way — itemised, with the sill and flashing work visible rather than buried.

How to compare door quotes

One practical note before you compare anything: if you are replacing doors and windows in the same season, quote them together. The staging, the setup and the permit are shared, and the saving is real — what the windows themselves cost is the bigger half of that number. Then check these six things on every quote.

• Slab, pre-hung or full-frame. Three different jobs. Make everyone bid the same one.
• Sill pan and flashing — in or out? This is the single most common omission and the most common cause of a door that fails in four years.
• Rot allowance. What is the rate if the sill or the framing below it is found soft once the old unit is out?
• Interior casing and paint. Who repairs the trim, and who paints it?
• Hardware. Lockset, deadbolt and handleset are often quoted separately and can add several hundred dollars.
• Lead-safe practices if the house predates 1978. Removing exterior casing disturbs painted surfaces, so the federal rule applies here just as it does to painting.

Is it worth it?

A new front door is consistently near the top of national cost-recouped rankings, and the reason is simple: it is the first thing a buyer touches. It is also one of the few projects where the whole job is done in a day and the difference is visible from the street — which is why it sits on our list of remodels that add the most value.

If the door is sound and only tired, refinishing plus new weatherstripping and a storm door is a legitimate few-hundred-dollar alternative. If the threshold is soft or the frame has moved, replace it — sealing around a failing frame just hides the water.