RepairCrowns, Repointing & Rebuilds
Cracked crowns, eroded joints and loose tops repaired before another freeze-thaw season makes them worse.
- Lime or modern mortar
- Crown replacement
- Top rebuilds
24 hours dispatch · Concord
Colonial Chimneys, New England Winters& Stone WallsChimney and masonry work for Concord, Acton, Lincoln, Sudbury, Carlisle and Bedford
Concord has houses older than the country, many built around one massive center chimney that serves three or four fireplaces. Add long winters, ice dams and the fieldstone walls that line every road from Monument Square to Walden Pond, and a mason here needs patience with old materials. Concord Chimney & Masonry repairs historic chimneys with the right mortar, stops winter leaks at the roofline and rebuilds stone walls, from our base on Commonwealth Avenue in West Concord with 24 hours dispatch.
1700schimneys
Limemortar
24 hrsdispatch
Fall cap install · Concord
9:41
Concord Chimney
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Texts from around Concord
Hard cement patches on soft brickCracking
Repointed in limeBreathing
First-period & Federal homes
The big chimney in the middle of the house
One stack, many flues
Center chimneys often hold three or four flues plus a beehive oven. We camera each one before anyone lights a fire.
Lime mortar, not cement
Old brick is soft. Hard modern mortar traps water and breaks the brick faces, so we repoint with lime mortar that flexes and breathes.
Historic district approvals
Concord's historic districts review visible exterior changes. We prepare photos and material details for the Historic Districts Commission when a job needs it.
Liners that fit old flues
Irregular, oversized colonial flues get stainless or poured liners so a stove or fireplace can be used safely.
Drag the bar
Before and after two winters too many
Left of the gold line is what we found; right is what we left behind. Drag it, or select the handle and use your arrow keys.
Frost pried it apart
Water got into the joints and froze winter after winter until bricks popped out. We rebuilt everything above the roofline, poured a sloped crown and capped it.
- Roofline rebuild
- Sloped crown
- Stainless cap
Under the maples, worn out
Shade from big maples kept this Lincoln chimney damp until the brick softened. It came back in new brick with a stainless cap and step flashing during a reroof.
- New brick
- Stainless cap
- Step flashing
Does your chimney look like the left side? (978) 576-5250
Services
Chimney and masonry work in Middlesex County
For antique colonials, Victorian farmhouses, mid-century capes and new builds from West Concord to the Lincoln line.
Repair
FlashingFlashing & Crickets
New step and counterflashing, plus crickets behind wide chimneys so snow and meltwater flow around them.
- Copper available
- Snow-shedding crickets
- Roped-in crews
LinersLiners for Stoves & Oil Burners
Stainless liners for wood stoves, inserts, oil and gas boilers, sized to the appliance.
- Insulated systems
- Oil & gas boilers
- Stove hookups
CapsCaps & Animal Screens
Stainless caps that keep out snow, rain, squirrels and raccoons.
- Single & multi-flue
- Snow-load rated
- Animal-proof mesh
InspectCamera Inspections
Video of every flue for buyers, sellers and owners of antique homes with unknown chimneys.
- Each flue mapped
- Sale reports
- Saved footage
SweepsSweeps & Firebox Repair
Thorough sweeps before heating season, plus firebrick and damper repairs.
- Creosote removal
- Firebrick
- Dampers
Fieldstone & granite
Stone walls, rebuilt the old way
The fieldstone walls along Concord's roads and old pastures were stacked by farmers clearing fields centuries ago. Frost heave, tree roots and the occasional snowplow knock them down, and they deserve to go back up properly.
SORT
Sort the fallen stone
Every stone is gathered and sorted by size; wall faces and capstones set aside.
BASE
Reset the footing
The base course goes back on firm, well-drained ground so frost doesn't push it out again.
STACK
Dry-stack with batter
Stones are laid two-on-one, one-on-two, leaning slightly inward the way the originals were built.
CAP
Cap and finish
Flat capstones go on top, and mortared walls, granite steps and posts are repaired to match.
Concord & neighboring towns
Where the rivers meet
We're on Commonwealth Avenue in West Concord, a short drive along Route 2 and the river roads to the towns around us. Tap one for a typical drive time.
Truck toConcord Center
About6 min
Tap a town
Dispatcher answers
Truck leaves Commonwealth Ave
Heads-up text
Roof & flue check
From 152 Commonwealth Ave. Route 2 rotary traffic and snowstorms change the timing, so dispatch confirms when you call.
Snow, ice & nor'easters
Winter leaks start at the chimney
Snow piles up behind a chimney, melts from the warm roof and refreezes at the edges. That backed-up water finds every gap in old flashing, and nor'easters drive rain sideways into worn joints.
Snow pockets behind the stack
A cricket behind wider chimneys keeps snow from piling up and soaking into the flashing.
Ice dams at the eaves
Meltwater backs up under shingles. New flashing and an ice-and-water membrane around the chimney stop it getting in.
Freeze-thaw damage
Water in brick freezes and expands, popping faces off and opening joints. Crowns and water repellent stop the cycle.
Mid-winter emergencies
Water pouring in during a storm? We tarp and divert it now and make the permanent repair in a thaw.
Ice backs up at the stackLeaking
Copper flashing & cricketDry attic
Is someone really available at night?
Yes, dispatch takes calls 24 hours a day. Water coming in at the chimney during a storm, bricks falling after a hard freeze or an animal stuck in a flue gets a crew lined up. If you see fire or smoke indoors, smell gas or hear a CO alarm, leave the house and call 911 first.
Why shouldn't old brick be repointed with cement mortar?
Colonial-era brick is softer than modern mortar. Hard cement traps moisture, so the brick breaks instead of the joint. Lime mortar lets the wall breathe and protects the brick.
Do I need Historic Districts Commission approval?
If your house is in one of Concord's historic districts and the work changes what's visible from the street, it may need review. We help prepare the application.
Our center chimney has four fireplaces. Can we use them all?
Often some, sometimes all, once each flue is inspected and lined if needed. A camera inspection tells you which are safe.
How do I stop ice dams around my chimney?
Proper flashing, an ice-and-water membrane and a cricket behind wide chimneys help most. Attic insulation and ventilation matter too.
Do you rebuild old stone walls?
Yes, dry-stacked fieldstone walls as well as mortared walls, granite steps and posts.
Which towns do you cover?
Concord and West Concord, Acton, Boxborough, Maynard, Stow, Sudbury, Wayland, Lincoln, Lexington, Bedford and Carlisle.
Service area
Concord & the surrounding towns
From the Assabet mills in Maynard to the Lexington line.
- Concord
- West Concord
- Acton
- Boxborough
- Maynard
- Stow
- Sudbury
- Wayland
- Lincoln
- Lexington
- Bedford
- Carlisle
Old chimney, winter leak or tumbled wall? Call.
Concord Chimney & Masonry keeps dispatch answering 24 hours a day.
(978) 576-5250 Call Concord Chimney
Concord Chimney & Masonry
152 Commonwealth Ave
Concord, MA 01742
(978) 576-5250
Directions →
Concord, MA 01742
(978) 576-5250
Directions →
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