Masonry in Brookline, MA: Old Brick, Historic Districts and Repointing

Brookline has eight local historic districts: Chestnut Hill North, Cottage Farm, Crowninshield, Graffam-McKay, Harvard Avenue, Lawrence, Pill Hill and Wild-Sargent. Cottage Farm, near the Boston University end of town, was the first, created in 1979. The districts are administered by the Brookline Preservation Commission, which publishes design guidelines for them.

If your property is in one of these districts, exterior masonry work visible from a public way, such as rebuilding steps, changing walls, replacing walkways or altering a chimney, generally needs commission review before work starts. Read the design guidelines first. They describe what the commission looks for, including how mortar, brick and stone should be matched.

Repointing is the most important masonry repair in a brick town. Over decades, mortar joints wear away from weather, and water starts getting into the wall. Signs include sandy, crumbling joints, recessed mortar, efflorescence (white salt stains) and loose bricks near the top of walls and chimneys.

Older brick is often softer than modern brick, and it was laid with softer, lime-rich mortar. Repointing it with a hard cement mortar is one of the most common and damaging mistakes: the mortar becomes stronger than the brick, so the brick takes the stress and its face cracks or flakes off. Good repointing matches the original mortar in strength, color and joint profile. On a historic building, that match also matters for commission review.

On attached brick rowhouses, masonry is often shared. A party wall, a common chimney or a continuous front facade means one owner's repair can affect the neighbor. Water damage that starts on one unit may come through the neighbor's chimney or parapet.

Before starting work on shared masonry, talk with neighbors or the condo association, agree on scope and cost split in writing, and coordinate staging, since rowhouse streets leave little room for scaffolding and materials. Staging on a sidewalk or street may need a town permit.

Rowhouse fronts also tend to have stoops that sit right on the sidewalk line, so repairs often need temporary access plans for the entrance. Planning which entry stays open, and for how long, keeps the household and any tenants moving while the work is done.

Brookline sits on Roxbury Conglomerate, the pebble-studded rock known as puddingstone. The Brookline Member of the formation is the classic puddingstone often pictured in geology guides. Some local homes and garden walls use it, including mid-century houses that built perimeter walls from stone found on site.

Repairing a puddingstone wall takes matching stone, which can be hard to source. Where stone has to be replaced, salvaging pieces from the same property is often the best match. On ledge lots, excavation for steps or walls can also run into rock, so a site visit before quoting matters.

Many Brookline homes have brick or granite stoops that face heavy traffic and winter salt. Common repairs are loose treads, open joints, cracked brick risers and loose railings. Granite treads over brick risers combine durability with a traditional look.

Brick chimneys on old buildings face the same problems as walls, plus extra exposure above the roofline. Cracked crowns, failing flashing and eroded top courses cause most leaks. Tall chimneys on multistory buildings require staging and roof protection, which affects cost and schedule.

On older multistory buildings, check also for loose parapet brick and coping stones at the roof edge. These pieces face the same exposure as chimneys, and a loose brick falling from the top of a building is a serious safety risk over a busy sidewalk.

As a rough market guide, repointing is often priced by the square foot of wall, and costs rise with height, access and how carefully the mortar must be matched. Small step repairs often start in the low thousands of dollars, while full stoop rebuilds can run into five figures. Chimney repairs range from a few hundred dollars to several thousand or more on tall stacks.

These are typical ranges only. Historic review, staging on tight streets and hidden conditions move the number. A free on-site estimate gives you a real figure.

When comparing quotes for repointing in Brookline, ask each contractor how they will remove old mortar, what mix they will use and how they will match the joint profile. Those answers say more about the quality of the finished wall than the price alone.