Services
Getting a rebuilt chimney right in Oviedo
How we plan a rebuild on your Oviedo chimney, from the first sound course to the new cap.
When the chimney pulls away from the wall
A widening gap between a chimney and the wall beside it means one of them has moved. Brick industry guidance for single-wythe chimneys describes attaching them to the structure with corrosion-resistant metal ties, and those ties can rust through or pull loose over time.
Closing the gap with sealant hides the movement without stopping it. We look at where the gap is widest, whether the chimney is tipping away at the top and what is happening at the base. Then we explain whether new ties, a partial rebuild or a structural review is the right next step, and what each would involve.
We also measure the gap on the first visit, so if you choose to watch it for a while before deciding, there is a starting figure to compare against later.
Mortar for a rebuilt chimney
New courses are laid in mortar chosen for a chimney's exposure. For chimneys above grade, the Brick Industry Association's mortar guide recommends Type N, with Type S as the alternate, and it advises using the lowest strength that still meets the job's requirements.
On a partial rebuild the mix also has to sit comfortably beside the older masonry that stays, since a much harder mortar next to softer old brick concentrates stress in the old work. We name the mortar on your estimate and explain why it suits both the new brick and the chimney below it.
The new joints are tooled once the mortar reaches the right firmness, which compresses the surface and helps the fresh work shed rain from the first storm onward.
Tooled joints that shed water
The finish on a mortar joint affects how well it resists rain. Brick industry guidance favors concave, V-shaped and grapevine tooled joints for weather resistance, since tooling compresses the mortar surface and presses it tight against the brick.
Raked and struck joints can look sharp but leave small recesses or ledges where water sits. On a rebuild we tool the joints in the weather-resistant style you choose, and we keep that finish consistent from the first new course to the crown so the rebuilt section reads as one piece.
Joint width matters as well. We keep the new joints close to the width of the old ones so the rebuilt courses line up with the masonry that stays and the transition is hard to spot.
