Masonry restoration

Masonry Restoration in St. Peters, MO

Restoration is a coordinated plan to bring aging brick and stone back to sound condition and a consistent appearance, using methods and materials that respect how the wall was built.

What masonry restoration is

Repair fixes a specific defect; restoration looks at the whole structure. It typically combines an assessment, careful cleaning, repointing, brick or stone replacement, and sometimes rebuilding chimneys, parapets, or wall sections, sequenced so each step supports the next.

Restoration makes the most sense for older homes and buildings, walls with several problems at once, or owners who want the masonry to look and perform as a whole again rather than as a patchwork of repairs. Not sure which you need? Read masonry repair vs. restoration.

What gets repaired, replaced, and preserved during masonry restoration?

Preserved

Sound original brick and stone stay. Keeping original material is the point of restoration: it’s usually the best match, and older brick made the way it was can’t be bought new.

Repointed

Deteriorated mortar is carefully removed and the joints are repointed with a compatible mortar, matched to the original in strength, color, texture, and joint profile.

Selectively replaced

Brick or stone that is badly spalled, cracked through, or crumbling is replaced one unit at a time, ideally with salvaged material of the same age.

Corrected

Poor earlier repairs, such as hard cement patches, mismatched brick, or non-breathable coatings, are removed where they’re causing damage. Restoration often spends as much effort undoing old repairs as making new ones.

Phased

Work doesn’t have to happen all at once. Water entry and loose masonry come first; cleaning and cosmetic work can follow in later phases, depending on the condition of the building and your budget.

Signs a building needs restoration, not just repair

Failing joints everywhere

Deteriorated mortar across multiple elevations, not one spot.

Widespread spalling

Many eroded or flaking bricks, especially lower on the wall.

Patchwork repairs

Old patches in mortar or brick that don’t match.

Staining or paint

Dirt, biological growth, or paint that’s trapping moisture.

Tired features

Deteriorated chimneys, parapets, arches, or decorative brick.

Moisture inside

Damp plaster, stains, or musty rooms behind masonry walls.

Why older brick needs a different approach

Brick made before the mid-20th century is often softer and more porous than modern brick, and it was laid in lime-based mortar that lets moisture evaporate through the joints. Repointing that brick with hard, cement-rich mortar traps moisture in the brick and forces stress into its face, one of the most common causes of spalling on older homes.

Restoration uses mortars that are compatible in strength, permeability, and appearance, so the joint stays the sacrificial part of the wall. The same thinking applies to cleaning: the gentlest method that works.

Our restoration process

Condition assessment

Each elevation is documented and the causes of deterioration identified.

Plan and prioritize

Urgent structural and water issues first, cosmetic work after, phased if the budget needs it.

Clean gently

Test patches first, then the lowest-pressure method that works.

Repoint with compatible mortar

Joints are raked out and repointed with a mortar matched to the brick.

Replace and rebuild

Damaged brick or stone is replaced; chimneys, parapets, or sections rebuilt where needed.

Protect and maintain

Water-management fixes and a simple maintenance plan.

Cleaning and treatment methods

The wrong cleaning method can do more damage in an afternoon than decades of weather.

Low-pressure water & soft brushing

Removes most dirt and biological growth.

Best for: The default starting point.

Masonry-safe cleaners & poultices

Targeted products for specific stains and efflorescence.

Best for: Stubborn stains, after a test patch.

Paint removal

Chemical strippers suited to masonry, tested first.

Best for: Painted brick being returned to natural.

Avoided

Sandblasting, high-pressure washing, and harsh acids strip the brick’s fired face.

Best for: Never on older brick.

Painted brick: strip it or repaint it?

Paint on old brick can trap moisture, especially when it’s a modern film-forming paint over soft brick. Signs of trouble are paint blistering, brick flaking under the paint, and damp patches inside.

Stripping is slow and has to be tested first, because some brick was painted to protect a soft or patched surface. Sometimes the better answer is to keep the paint and switch to a breathable masonry coating once the wall is repaired. We’ll test a small area before recommending either.

Chimneys, parapets, and arches

The parts of a building that stick out get the most weather: chimneys above the roof, parapet walls along the roof edge, and brick arches over windows. These are often the first features that need rebuilding rather than repair.

Rebuilding is done by taking the brick down to sound masonry, saving and cleaning what can be reused, and relaying it with matching mortar and the original bond pattern. See chimney repair for chimney-specific work.

Historic districts and design review

Some neighborhoods in the region are local historic districts, including parts of St. Charles, University City, and the City of St. Louis. In those districts, exterior masonry work may need review before it starts: by the Landmarks Board in St. Charles, the Historic Preservation Commission in University City, and the Cultural Resources Office in St. Louis.

If your home is in one, check first. We can provide a description of the proposed work, materials, and mortar for the review.

How long restoration lasts

A restored wall with compatible mortar and good water management can go decades before needing major work again. Periodic maintenance is part of the plan: checking joints, keeping water off the wall, and fixing small failures early.

What affects the cost of restoration

Size and height of the building
How severe and widespread the deterioration is
Cleaning method and paint removal
Sourcing salvaged or custom-matched brick
Scaffolding and access
Historic review requirements
Whether the work is phased

Questions about restoration

Is restoration more expensive than repair?

Per project, usually, since it covers more. But one planned project often costs less than years of repeated spot repairs on the same wall.

Can restoration be done in phases?

Yes. Urgent water and structural issues go first; cosmetic work can follow in later phases.

Will you sandblast my brick?

No. Sandblasting and high-pressure washing remove the hard fired face of the brick and speed up deterioration.

Do you use lime mortar?

Where the brick calls for it. Older, softer brick is repointed with softer, more breathable mortar.

Do I need approval in a historic district?

Possibly. St. Charles, University City, Florissant, and the City of St. Louis all review some exterior work in their local historic districts. Check with your city before scheduling work.

How can I tell if my brick is the soft, older kind?

Age is the first clue: brick from before the mid-1900s is often softer. On the wall, soft brick tends to have rounded, worn edges, a sandy surface, and old mortar you can scratch with a key. We check before choosing mortar.

Can you remove paint from brick?

Often, yes, using masonry-safe strippers after a test patch. Some brick shouldn't be stripped, and we'll tell you if yours is one of them.

Questions about restoration? Call and talk to a mason.

The fastest way to get answers is a phone call. Mon to Sat, 8 AM to 6 PM · Sun, 10 AM to 2 PM

Prefer to write? Send a message

For the quickest answer, call (669) 326-4536. Otherwise, leave your details and we’ll get back to you.

Hours
Mon to Sat, 8 AM to 6 PM
Sun, 10 AM to 2 PM

Email
info@stpetersmasonry.com