Stone chimneys in Health District, reset and repointed with care
Our team matches joint color, width and profile so repaired areas sit quietly beside the old work.
- Owned and run locally
- Available for same-day service
- Fully licensed and insured
- Family owned and run
Stonework changes worth a closer look
- Thin gaps around individual stones
- White deposits washing out of the joints
- Cracks running through the stones themselves
- Loose stones above a door or walkway
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Resetting and repointing chimney stone
When several stones loosen in one area
A cluster of loose stones usually points to something behind them. The lath may have corroded, the scratch coat may have lost its grip, or water may have soaked the backing over a long period.
In that case we suggest removing the loose group, checking the surface behind it and repairing that surface before any stones go back. Resetting stones one by one over a failing base tends to repeat the problem. The estimate shows the backing repair as its own line, apart from the stone work.
Thin gaps between stone and mortar
A thin gap between a stone and the joint around it means the mortar has let go of the stone's edge. It may look minor, but water can enter there and reach the bed behind the stone.
We check how many joints show this pattern and where. A few can be raked and repointed. A widespread pattern suggests movement or a mortar that shrank badly as it cured, and we look for the reason before recommending a fix. Repointing over an unexplained cause tends to open the same gaps again.
Shaping a natural stone to fit
Replacement pieces of natural stone often need shaping to fit a gap. Dressing a stone with hand tools lets its face and edges sit like the originals around it. It is slow work, but a well-shaped stone needs less mortar around it to look right.
We shape stones so their faces follow the plane of the chimney and their joints match the surrounding pattern. Done well, a dressed stone looks as though it belongs where it sits. Where a gap cannot be filled well by shaping, we explain the alternatives before cutting into new stone.
Old, hard mortar in stone joints
Earlier repointing is sometimes done with a mortar much harder than the stone. National Park Service guidance explains why that harms masonry, since the stone becomes the weaker partner and takes the damage. Hard joints also tend to crack along the stone edge, letting water in behind them.
We look for chipped or flaking stone edges beside hard joints. Where old hard mortar can come out without harming the stone, we replace it with a more suitable mix. Where removal would damage the stone, we explain the options and their limits before any work begins.
Stone repair scope for homes in Health District
- Repointing with mortar suited to the stone
- Water-resistive barrier lapped back behind veneer
- Gentle cleaning of mortar smears
- Moist curing of new mortar
Stone chimney repair questions
Why not just glue a loose stone back in place?
Adhesive is not a substitute for a proper mortar bed on an exterior wall. A glued stone can let go again, and the glue can block the drainage behind it. We reset stones the way the assembly was meant to hold them.
Why are white deposits forming on my stone chimney?
White deposits usually mean water is moving through the stone or joints and leaving dissolved minerals behind as it dries. Brushing them off helps the look, but finding where the water enters is what stops them returning.
What should I mention when I call about stone damage?
Say which stones moved or fell, where they are, whether the area gets wet after rain and any past repairs. If you know the stone product or who installed it, mention that too.
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Chimney & Fireplace Brands We Work With
DuraVent 
Olympia Chimney and Venting 
Copperfield Chimney Supply 
Rutland 
Heatilator 
Heat & Glo