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Mason repointing a pre-1940 red brick rowhouse wall in Dundalk, MD

Masonry Repair in Dundalk, MD

Dundalk sits on Patapsco Neck, about 6.4 miles east-southeast of downtown Baltimore, with the Patapsco River on one side and the Back River on the other. The ground barely clears sea level, topping out near 40 feet. About 66 percent of the housing here was built before 1960. Old walls in air that never fully dries is a punishing combination, and it explains most of what goes wrong with masonry in Dundalk, MD. Charm City Masonry handles masonry repair in Dundalk, MD with materials matched to the wall in front of us.

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01

Masonry Work in Dundalk

Dundalk was drawn on paper before it was built, and the plan is still readable in the walls. Old Dundalk, the 1918 Garden City core east of Dundalk Avenue, has the curved streets and the circle. St. Helena, west of the avenue and built the same year, is laid out on a grid. Between them, the Emergency Fleet Corporation put up 531 houses in Dundalk and 284 in St. Helena to designs by the architect Edward L. Palmer, using hollow clay tile walls finished in stucco under slate roofs. The St. Helena houses were "convertible houses" in rows of four, six, eight or ten.

What came next was brick. Through the 1920s and 1930s the Dundalk Company, a Bethlehem Steel subsidiary, added rowhouses, semi-detached duplexes and detached homes in red brick, Colonial and Tudor Revival first, then Art Deco and Art Moderne. Between 1937 and 1942 the Dundalk-Liberty-Cornwall Gardens went up as 30 two-story brick Colonial Revival garden-apartment buildings around car-free courtyards. Gray Manor followed with roughly 650 wartime units finished by 1943, then Gray Haven's 1940s and 1950s brick row homes, Turner Station and Dunmanway.

That history has a practical edge. The Dundalk Historic District was listed on the National Register on 8 December 1983, its structures primarily from 1910 to 1940, with 120 of 982 resources contributing. Dundalk-Liberty-Cornwall Gardens was listed separately in 2011. Most of that stock is bedded in lime-based mortar, so a masonry contractor in Dundalk, MD who reaches for a bag of Type S is about to do damage that cannot be undone.

We work the whole neck: Dundalk Avenue and Merritt Boulevard, the blocks off North Point Boulevard, both sides of I-695, and the streets around Bread and Cheese Creek, CCBC-Dundalk and Sollers Point Technical High School. As a masonry company in Dundalk, MD we take residential and commercial work alike, including storefronts at Shipping Place, Market Place and Center Place. See our commercial masonry services in Baltimore.

Before and after brick repointing on a Dundalk, MD brick row home

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Our Services in Dundalk

The order below follows what Dundalk's stock needs most, and damp air on pre-1940 walls puts mortar first.

01

Brick Repointing and Tuckpointing

Repointing means cutting out failed mortar to a sound depth and packing in new. On pre-1940 walls the mix decides everything: mortar is the sacrificial part of the wall. Brick repointing in Dundalk, MD done with a hard modern mix forces movement and water through the brick instead, and the face spalls. Ask what we mix for tuckpointing in Dundalk, MD and you will get a ratio and a reason. See our brick repointing and repair page.

02

Brick Repair and Replacement

Once a brick face has popped off, pointing will not bring it back. Brick repair in Dundalk, MD covers cutting out spalled and cracked units, replacing them with salvage or a close color match, rebuilding loose wythes, and resetting sills, lintels and parapets that stopped shedding water.

03

Stucco Repair

The 1918 and 1919 company houses in Old Dundalk and St. Helena are hollow clay tile under stucco, an assembly that needs a breathable, compatible repair. A hard Portland patch sits stiffer than everything around it, holds moisture behind itself, then delaminates and pulls tile face with it. The fix is a softer, vapor-permeable material with feathered edges and a texture match. See our stucco repair approach.

04

Chimney Repair

Flat, exposed lots and constant damp are hard on a stack. We handle crown rebuilds, repointing above the roofline, leak diagnosis, spalled brick replacement and rebuilds down to the shoulder. A loose top course or a cracked crown makes chimney repair in Dundalk, MD cheaper the sooner it happens. See our chimney repair page.

05

Concrete Steps, Walkways and Driveways

Road salt and standing water take a front walk apart from the surface down. We pour and repair concrete steps in Dundalk, MD along with stoops, walkways, patios and driveways, and reset marble and brick steps when the stone is sound. As a concrete contractor in Dundalk, MD we handle slab and trip-hazard work too. See concrete steps and walkways.

06

Foundation Parging and Damp-Proofing

Block and rubble foundations here take on water from the ground. Parging is a thin mortar coat applied over masonry to protect and even out the surface. We repoint below grade, seal cracks, parge the exterior face and correct the grade so water leaves instead of sitting against the house. Start with our repointing and below-grade repair.

07

Retaining Walls

Flat ground still needs walls where a yard is cut or a driveway lowered. A retaining wall in Dundalk, MD lasts based on drainage: gravel backfill, a working drain line, and a footing below the frost line. Above a certain height, engineering and a permit are usually required. For a natural stone face, our stone mason in Dundalk, MD work is on the retaining wall page.

03

Waterfront Masonry: What Constant Moisture Does to a Wall

Water is the whole story here. Dundalk sits at sea level between two tidal rivers, under roughly 45 inches of rain across about 121 wet days a year, with humidity from 59 percent in spring to 71 percent in early fall, plus salt in the air. A wall in that setting never fully dries between wettings. Nothing about masonry in Dundalk, MD is unusual in kind. It is unusual in degree.

The clearest example is rising damp. Groundwater wicks up through the pores of a block or rubble foundation the way a paper towel pulls water out of a saucer, carrying salts with it. When the moisture evaporates at the wall face, those salts stay behind as a white bloom: efflorescence, which is cosmetic. The damaging version is when they crystallize just inside the surface instead of on it, and the pressure of the growing crystals pushes the face off the block or brick.

That is also why a hard mortar joint is worse here than almost anywhere else in the region. A joint is the intended escape route for vapor. Seal it with a cement-rich mix and the moisture has one way out: through the brick. The same logic governs the stucco-over-hollow-tile houses in Old Dundalk and St. Helena. Hollow clay tile is thin-shelled and brittle, and a rigid patch traps water against a material with very little face to lose. Breathable materials are not a preference here, they are the repair. Our brick repointing and repair guide explains the mortar side in full.

Not sure what you are looking at? Send us a photo and we will tell you what it is. Call (410) 844-6510.

Close-up of efflorescence and spalling at the base of a block foundation wall

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Why Dundalk Masonry Fails

Age plus water plus salt, in that order. Two thirds of the housing here predates 1960, so most joints are decades past their pour, and mortar has a service life like anything else. Baltimore adds roughly 45 inches of precipitation and about 19 inches of snow a year, and spends 75 to 90 days below freezing. January averages 34 degrees with lows near 25, so the wall thaws most afternoons and refreezes most nights. A climate that hovers at the freezing line does more damage than one that stays hard frozen, because every cycle needs liquid water inside the wall.

Then the salt trucks come through. Chloride gets splashed and tracked onto steps, stoops and the bottom few feet of every wall, and it drives subflorescence, which is salt crystallizing inside the pore structure rather than on the face. That is what turns a hairline into a spall. Most concrete repair in Dundalk, MD we are called for starts at the bottom step, and most brick repair in Dundalk, MD starts within three feet of the ground.

Charm City Masonry crew cutting out failed mortar joints on a Baltimore County brick home

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Nearby Areas We Serve

We cover Baltimore City and Baltimore County, and we are on the east side constantly. Masonry work in Essex is a close cousin to this one: another peninsula between two tidal rivers, another wave of fast-built 1940s housing, the same rising damp in block foundations. West of here, our Baltimore rowhouse work covers Canton, Highlandtown and Patterson Park. North of the Beltway, masonry repair in Towson leans toward chimneys, stone and hillside retaining walls. The masonry contractors in Dundalk, MD you call should know all three, and the same masonry company in Dundalk, MD works the rest of the county. More on our about page.

Stuccoed hollow clay tile company house of the type built in Old Dundalk and St. Helena

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Frequently Asked Questions

Do you work on the older company-built houses in Old Dundalk and St. Helena?
Yes. Those 1918 and 1919 houses are hollow clay tile with a stucco finish, so the repair has to breathe. A hard cement patch on that assembly delaminates and takes tile face with it. We use a softer, vapor-permeable material and match the existing texture.
Why does masonry fail faster near the water?
Because the wall stays wet. Dundalk sits at sea level between the Patapsco and the Back River, humidity runs high most of the year, and there is salt in the air. Walls hold moisture longer, salts move through them, and freeze-thaw catches the masonry saturated.
My house is in the Dundalk Historic District, does that change the repair?
Mostly it changes the mortar. The district was listed on the National Register on 8 December 1983 and its structures are primarily 1910 to 1940, so the original mortar is lime-based. Brick repointing in Dundalk, MD on that stock needs a soft, compatible mix and a matching joint profile.
Can you fix a damp basement or foundation wall?
Usually, yes. We repoint below grade, repair cracks and parge the wall face. The first step is not the patch though, it is finding where the water comes from: grade sloping back toward the house, a failed downspout, or groundwater wicking up through the block.
Do you do concrete driveways and steps in Dundalk?
Yes. Driveways, aprons, walkways, patios, stoops and steps, plus repairs to what is there. Hiring one concrete contractor in Dundalk, MD for the flatwork and the masonry means the steps, the porch and the wall they meet get looked at together.
Are you licensed and insured?
Licensed, insured and bonded. In Maryland the Home Improvement Commission licenses this work, and masonry, pointing, concrete driveways, chimney repairs and retaining walls are all on its list. Hiring a licensed masonry contractor in Dundalk, MD also keeps you eligible for the state Guaranty Fund, which unlicensed work does not.

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Send a photo or book a free on-site look. We will tell you what is failing, why it is failing and what it takes to fix it, whether that is chimney repair in Dundalk, MD, a stucco patch on a company house or a full front wall. Call (410) 844-6510.

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