How Much Does It Cost to Build a Chimney and Fireplace in Boston, MA?
Quick answer:
Building a new chimney and fireplace in Greater Boston ranges from the mid 4 figures for a factory-built (prefab) fireplace with a simpler chase up into the 5 figures, sometimes well into them for a full masonry fireplace and brick or stone chimney. The type (masonry vs. prefab), size, materials, and whether it's part of new construction or added to an existing home drive the price. This is a real construction project, so every number comes from an on-site plan and quote.
A fireplace is one of the few home additions people fall in love with before they price it, and then the number surprises them. I build and rebuild chimneys and fireplaces in Boston, Quincy, Weymouth, Hingham, Plymouth, and across the South Shore. There's a huge spread between a tidy prefab unit and a hand-laid masonry fireplace with a full brick chimney. Let me show you where that spread comes from so you can budget the right project.
How much does it cost to build a chimney and fireplace?
Short answer: A prefab (factory-built) fireplace and chimney generally starts in the mid 4 figures; a full masonry fireplace with a brick or stone chimney runs into the 5 figures, higher for large or custom stonework.
Build type | What you get | Cost band* |
|---|---|---|
Prefab / factory-built | A manufactured firebox with a framed chase and metal flue | Mid 4 figures+ |
Masonry fireplace + brick chimney | Hand-laid firebox, hearth, and full masonry stack | 5 figures |
Custom stone / oversized | Large stonework, architectural designs | Highest |
*Ballpark ranges for planning only. Materials, size, height, and site conditions set the real number.
Masonry vs. prefab: which is cheaper to build?
Short answer: A prefab fireplace is cheaper to build and faster to install; a masonry fireplace costs more but lasts generations, adds the most value, and is what most people picture when they think "fireplace."
A factory-built unit is a manufactured firebox vented through a metal flue inside a framed, finished chase. It's efficient, quicker, and lighter. It often doesn't need the heavy footing a masonry stack does. A masonry fireplace is built by hand, brick by brick, on its own footing, with a masonry flue liner and a real hearth. It costs more in materials, skilled labor, and time, but it's a permanent architectural feature. Our brick and stonework capabilities cover the craft side of a masonry build, and the chimney rebuilding and construction page shows the kind of stacks we construct.
What drives the cost of a new chimney and fireplace?
Short answer: The biggest levers are masonry vs. prefab, size and height, the materials (brick vs. stone), the footing, the flue liner, and whether you're building new or cutting into an existing house.
Footing. A masonry chimney is heavy and needs its own concrete footing, which ties this into concrete work. Prefab units are lighter and often skip it.
Height and location. A tall stack, or an interior chimney that must pass through finished floors and the roof, costs more than an exterior one on a new build.
Materials. Standard brick is economical; custom stone veneers and oversized designs climb quickly.
New build vs. retrofit. Adding a fireplace to an existing home means opening walls, framing, and a roof penetration, which is more labor than building it into a house that's already going up.
Flue and liner. Every fireplace needs a correctly sized, code-compliant flue; our chimney structure and ventilation guide explains why sizing matters.
Can you add a fireplace and chimney to an existing house?
Short answer: Yes, but it's more involved and usually pricier per fireplace than building one into new construction, because it means cutting into finished space and adding a footing and a roof penetration. It's very doable. It just needs a proper plan and permit.
Most of the fireplace additions I build are on existing homes, and they turn out beautifully, but I'm always honest that the retrofit work (framing, footing, flashing the new stack into the roof) is where the labor lives. Structural additions like this require a building permit in Massachusetts, which a legitimate contractor pulls and coordinates as part of the job.
Why choose Kings Masonry & Construction
At Kings Masonry & Construction, you get:
A licensed and insured team with 15-plus years of chimney and masonry work across Boston and the South Shore
A 4.9-star local rating
Free, no-obligation on-site consultations 7 days a week
We'll plan the right fireplace for your home and budget, handle the permit, and give you an honest, itemized quote.
Frequently asked questions
How much does it cost to build a chimney and fireplace in Boston, MA?
A prefab fireplace and chimney generally starts in the mid 4 figures. A full masonry fireplace with a brick or stone chimney runs into the 5 figures, and higher for large or custom stonework. Type, size, materials, and site conditions set the real price, so an on-site plan is needed.
Is a gas fireplace cheaper to build than a wood-burning one?
Usually, yes. A direct-vent gas fireplace vents through an outside wall and needs no chimney, which often makes it the most affordable option. A wood-burning fireplace needs a full chimney, so it costs more to build.
Do I need a permit to build a fireplace in Massachusetts?
Yes. Building a new fireplace and chimney requires a building permit, and the work is inspected before use. Requirements vary by town, and a legitimate contractor handles the permit as part of the job.
How long does it take to build a chimney and fireplace?
A prefab or direct-vent gas unit can take a few days to a couple of weeks. A full masonry fireplace and chimney usually takes several weeks, including time for the concrete base, the build, inspections, and curing.
Does a new fireplace add value to a home?
In New England, a well-built fireplace is a strong selling point, and a masonry fireplace usually adds the most appeal. How much value it adds depends on your home and market.
Will a new fireplace affect my homeowners insurance?
It can. Tell your insurance company about a new fireplace or stove. They may ask for proof of a permit and inspection, and it may affect your premium.
The bottom line
The cost to build a chimney and fireplace depends on what you build:
A direct-vent gas unit is often the most affordable.
A prefab fireplace starts in the mid 4 figures.
A full masonry fireplace with a brick or stone chimney runs into the 5 figures.
Decide on fuel type and masonry vs. prefab first. Those 2 choices set most of your budget.
Plan your new fireplace with a local mason. Kings Masonry & Construction offers free, no-obligation on-site consultations across Boston, the South Shore, and eastern Massachusetts, 7 days a week. We'll look at your home, walk you through your options, and give you an honest, itemized quote. Book a free consultation.
