When a wood fire heats the house, a cracked crown or open joint isn’t cosmetic. Shaun repairs and rebuilds masonry chimneys and fireplaces for homes in Campo, Lake Morena, Potrero, Boulevard and Jacumba — capped, screened and built to stand up to hot afternoons, freezing nights and fire season.
CSLB #979389 · C-29 Licensed · Bonded $25,000 · Free on-site estimates
Mountain Empire chimneys by the numbers
Census figures for the Mountain Empire division count 641 of 2,687 occupied homes heating mainly with wood: 23.9%, against 0.6% for San Diego County and 1.3% for California. Add the Laguna-Pine Valley division over the hill and the two mountain divisions hold one in seven of all the wood-heated homes in the county. Another 43.0% of Mountain Empire homes run on tank propane; only 2.8% have piped gas.
Those chimneys work in a hard climate. The Campo station averages 88.2 days a year at 90°F or above and 78.9 nights at or below freezing, so a crown that bakes in the afternoon can have water freezing in its cracks by morning. And in the country of the 2007 Harris Fire — 90,440 acres and 560 structures lost — what leaves the top of a chimney matters as much as what goes on inside it.
What we do to keep a working chimney sound in this climate. For the county-wide view see our chimney repair and fireplace pages.
Repair
A thin mortar wash bonded tight to the flue cracks as the two heat and cool at different rates. We replace it with a proper cap — concrete, metal or stone, sloped, with a drip edge — and a caulked bond break so the liner can move without splitting the crown.
Repair
Open, sandy joints on the exposed stack are cut out and repointed with mortar no harder than the brick or stone around it, then kept from freezing while they cure. Bricks whose faces have spalled off are replaced, and flashing is re-set into the new joints.
Fire
Every chimney serving a wood fireplace or stove gets an approved arrestor, and we point out any branch within 10 feet of the outlet before we leave. In fire country it is one of the least expensive protections a wood-heated house can have.
Heating
If you are replacing an open fireplace or an old stove with an EPA-certified one, the dealer fits the appliance and liner and we make the masonry right: hearth extension, firebox, smoke chamber and a crown that will carry the new cap.
Seismic
A stack that has loosened above the roofline is taken down to sound masonry and rebuilt with the vertical steel, ties and straps the code calls for in seismic regions — then capped and screened.
Outdoors
Outdoor fireplaces and fire pits in stone or block, placed at least 25 feet from the house and anything that burns, with gas as an option on lots where a wood fire is hard to place safely.
The California Residential Code treats a masonry chimney as a structure and a fire barrier at once. Its walls are at least 4 inches of solid masonry or hollow units grouted solid; the flue must be lined; and it stands 2 inches clear of framing where it runs inside the house, 1 inch where it runs fully outside. It ends 3 feet above the roof and 2 feet above anything within 10 feet.
The top is where Mountain Empire weather does its work, so the cap rules matter most: a concrete, metal or stone cap with a drip edge and a caulked bond break, sloped to shed water. Any chimney attached to a fireplace or appliance that burns solid fuel carries an approved spark arrestor with a net free area at least four times the flue outlet.
Campo, Potrero, Boulevard and Jacumba are all unincorporated: a new masonry fireplace or a chimney rebuilt above the roofline goes through County of San Diego Planning & Development Services, while like-for-like repairs usually need no permit. State law sets the defensible space: 100 feet around the house, and nothing of any tree within 10 feet of a chimney or stovepipe outlet.
The County’s 2026 wildfire code keeps the first 5 feet around the house free of combustibles and puts firewood 30 feet from buildings — worth knowing when the woodpile is the first thing by the back door. Outdoor recreational fires stay 25 feet from structures and combustible material under the state fire code the County adopts, with someone in attendance.
Many Mountain Empire owners ask whether to keep burning in the open fireplace or put a stove into it. Here is how the two compare from the chimney’s side.
| Open masonry fireplace | EPA-certified stove or insert | |
|---|---|---|
| Smoke | Not an EPA-certified heater | New heaters capped at 2.0 g/h since May 2020; old uncertified stoves 15–30 g/h |
| What the masonry needs | Sound firebox, damper area, crown and arrestor | Sound hearth extension and crown; dealer-fitted liner |
| Who does what | All masonry: us | Appliance and liner: the dealer · masonry: us |
| Spark arrestor | Required (solid fuel) | Required (solid fuel) |
Sources: EPA Burn Wise; California Residential Code R1003.9.2. The stove itself is fitted by its dealer or installer.
Cap, crown, arrestor, flashing and nearby branches first — the parts heat, frost and embers attack.
Firebox, smoke chamber, hearth and clearances, and whether a stove is planned.
What needs doing now, what can wait, and what the code and County require, with an itemised price.
Mortar work on days that stay above 40°F; covered overnight when the forecast drops.
A real sloped cap with a drip edge and bond break, mortar matched to the masonry, reinforced rebuilds where needed.
Arrestor fitted, area checked, and a reminder that the USFA advises an annual inspection.
Planning one? Shaun will walk the site with you and tell you what it needs — free, no obligation.
Call (619) 581-2492Same climate, different houses. The rest of what we build out here is on the Campo & Mountain Empire page; over the hill, see Pine Valley and Descanso chimneys.
The Campo & Mountain Empire page covers the ground, permits and neighbourhoods across every kind of job. The county-wide pages go deeper on the build itself.
Straight answers before you hire. Anything else — call, and Shaun answers it himself.
Call (619) 581-2492Usually because it is a thin mortar wash stuck to the flue rather than a true cap. With Campo averaging 88 days a year at 90°F or more and 79 nights at or below freezing, it is constantly expanding and contracting. A sloped cap with a drip edge and a bond break around the flue fixes the cause.
Yes. The California Residential Code requires an approved spark arrestor on any chimney attached to a fireplace or appliance that burns solid fuel, with mesh openings between 3/8 and 1/2 inch.
If the fireplace is your main heat, it is worth considering: EPA figures put new certified stoves at 2.0 grams of smoke an hour against 15–30 for old uncertified ones. The dealer installs the stove and liner; we make sure the hearth, firebox and crown are sound first.
The County’s 2026 wildfire code puts firewood 30 feet from buildings and keeps the first 5 feet around the house free of anything that burns.
Usually, if it’s sited right. The state fire code the County adopts keeps recreational fires 25 feet from structures and combustible material, attended, with a hose or extinguisher at hand.
A rebuild above the roofline or a new fireplace goes through County PDS. Like-for-like repairs such as a new cap or repointing usually don’t; we confirm it for each job.
Yes. We’re based in Alpine at 2351 Eltinge Dr and cover the Mountain Empire. California C-29 masonry licence #979389, issued 2012, bonded and insured.
Call Shaun at (619) 581-2492 or send the form. He’ll start at the top of the chimney, tell you what the code and the fire rules require, and give you a written, itemised price.
