Norfolk County · Licensed · Insured · Family-Owned
Indoor Fireplace & Firebox Repair in Cohasset, MA
Looking for indoor fireplace & firebox repair in Cohasset, MA? Ultimate Boston Masonry is a licensed, insured, family-owned masonry contractor serving Cohasset and the rest of Norfolk County from our Boston base. Cohasset seaside properties need hardy stonework: terraces, stairs, and seawall repairs.
Housing in Cohasset includes granite stoops, brick chimneys, and stone garden walls, and New England's 60–100 freeze-thaw cycles a winter is what wears this masonry down. That is why our indoor fireplace & firebox repair work starts with understanding what your building is made of — brick type, stone, mortar hardness, and drainage — before we price anything. Cracked firebrick, loose hearths, and eroded smoke chambers are fire hazards. We rebuild fireboxes with firebrick and refractory mortar, reset hearths, and restore brick and stone surrounds inside the home.
Response time in Cohasset: Estimates within 72 hours · Typical range $500 – $6,000

Free indoor fireplace & firebox repair quote in Cohasset
Tell us about the project and we'll come out to price it — no charge, no pressure.
Scope
What our indoor fireplace & firebox repair in Cohasset includes
- Firebrick replacement with refractory mortar
- Full firebox rebuilds
- Hearth and hearth extension repair
- Smoke chamber parging
- Brick and stone surround restoration
- Dust-protected interior work areas
Process
How indoor fireplace & firebox repair works in Cohasset
1. Free on-site assessment
We inspect the firebox, damper, hearth, and smoke chamber.
2. Written fixed-price scope
You get a written repair plan and fixed price.
3. Skilled masonry work
Interior is protected, and repairs are completed with heat-rated materials.
4. Cleanup and final walkthrough
Mortar is cured and you receive guidance on first-fire timing.
Local FAQ
Indoor Fireplace & Firebox Repair in Cohasset: questions answered
How much does indoor fireplace & firebox repair cost in Cohasset, MA?
Most indoor fireplace & firebox repair projects in Cohasset fall between $500 – $6,000. Replacing a few firebricks is at the low end; complete firebox and smoke chamber rebuilds are at the top. We give a free written, fixed-price estimate after an on-site look.
How quickly can you start indoor fireplace & firebox repair in Cohasset?
Estimates within 72 hours in Cohasset. Most projects are scheduled within one to three weeks, and safety hazards are prioritized.
Do I need a permit for indoor fireplace & firebox repair in Cohasset?
Minor repairs usually don't need a permit, but rebuilds, new structures, and tall retaining walls often do under the Massachusetts building code. We check with the Cohasset building department and pull permits when required.
Which areas near Cohasset do you also serve?
Besides Cohasset Village, Beechwood, Sandy Beach, we regularly work in nearby Braintree, Weymouth, Hingham, and every community within 45 miles of Boston.
Are you licensed and insured to work in Cohasset?
Yes. Ultimate Boston Masonry is licensed, fully insured, and family-owned with 5 years of experience on Greater Boston brick and stone.
Is it safe to use a fireplace with cracked firebrick?
Small hairline cracks are common, but gaps, missing bricks, or loose mortar can let heat reach framing. Get it inspected before using it.
What mortar is used in a firebox?
Refractory mortar rated for high heat. Regular masonry mortar breaks down in a firebox.
Indoor Fireplace & Firebox Repair near Cohasset
Also available in these Cohasset neighborhoods and nearby towns.
- Indoor Fireplace & Firebox Repair in Cohasset Village
- Indoor Fireplace & Firebox Repair in Beechwood
- Indoor Fireplace & Firebox Repair in Sandy Beach
- Indoor Fireplace & Firebox Repair in Braintree
- Indoor Fireplace & Firebox Repair in Weymouth
- Indoor Fireplace & Firebox Repair in Hingham
- Indoor Fireplace & Firebox Repair in Scituate
- Indoor Fireplace & Firebox Repair in Norwell
- Indoor Fireplace & Firebox Repair in Randolph
- Indoor Fireplace & Firebox Repair in Canton
- Indoor Fireplace & Firebox Repair in Stoughton
Other masonry services in Cohasset
- Chimney Repair & Rebuilds in Cohasset
- Brick & Stone Repointing in Cohasset
- Retaining Walls in Cohasset
- Patios & Walkways in Cohasset
- Stone Steps & Stoops in Cohasset
- Foundation & Basement Masonry in Cohasset
- Stone Veneer & Facades in Cohasset
- Outdoor Fireplaces & Fire Pits in Cohasset
- Brick Repair & Replacement in Cohasset
- Historic Masonry Restoration in Cohasset
- Stucco & Foundation Parging in Cohasset
- Masonry Waterproofing & Sealing in Cohasset
- Brick Walls, Pillars & Columns in Cohasset
- Paver & Cobblestone Driveways in Cohasset
- Emergency Masonry Repair in Cohasset
Learn more about our indoor fireplace & firebox repair service or see all masonry services in Cohasset.
Homeowner guides
Read before booking indoor fireplace & firebox repair
7 min read
Signs Your Fireplace Firebox Needs Repair
Cracked firebrick, gaps, and deteriorated mortar in indoor fireplaces — what's normal, what's dangerous, and how it's fixed.
Read the guide →9 min read
What Masonry Repair Costs in the Boston Area
Real price ranges for chimney repair, repointing, patios, steps and retaining walls around Boston, plus what drives each number up or down.
Read the guide →7 min read
Seven Signs Your Brick Needs Repointing
How to tell when mortar joints have failed, which signs are urgent, and what happens if repointing waits another winter.
Read the guide →