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Serving Concord, CA and surrounding areas. (925) 536-0971
CDM Concord Masonry handles foundation repair, brick work, chimneys, retaining walls, and 12 more masonry services across Concord and the East Bay. Licensed, insured, and locally owned since 2023.
CDM Concord Masonry is a masonry contractor based in Concord, CA, solving the foundation cracks, crumbling chimneys, failing retaining walls, and deteriorating brick that affect homes and properties across the East Bay. We offer 16 masonry services and serve 12 cities in Contra Costa and Alameda Counties. Every job is handled by a licensed, insured crew - no subcontracting, no shortcuts.
Cracks, settling, or uneven floors? We stabilize your foundation before the damage spreads to the rest of your home.
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Crumbling mortar or a blocked flue is a safety issue, not just cosmetic. We repair chimneys so they work safely season after season.
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Failing mortar lets water behind your bricks. We grind out the old joints and repack them so your masonry stays watertight.
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Cracked or spalling bricks get worse every rainy season. We replace damaged brick and match the color so the repair disappears.
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Cracked or sunken driveway? Pavers handle heavy traffic and look better than plain concrete for decades with minimal upkeep.
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Clay soil movement can topple a poorly built retaining wall. We build walls designed to hold under Concord's seasonal conditions.
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Weathered or stained masonry drags down your curb appeal. Restoration brings it back without a full rebuild.
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Want a fireplace that actually functions and looks good? We build masonry fireplaces built to last, not just look nice on the first day.
Learn MoreReach out by phone or through our online form. We will ask you a few quick questions - what you are seeing, how long it has been going on, and what type of structure is involved. You will hear back from us within 1 business day to schedule a free on-site visit.
We come to your property, walk the area with you, and explain exactly what we find - in plain language, not contractor jargon. You get a written estimate that breaks down the scope and cost before any decision is made. No pressure, no surprise add-ons.
Once you approve the estimate, we schedule the job, handle any required permits, and get to work. Most residential projects wrap up in one to five days. When we are done, you get a final walkthrough and a written warranty covering both materials and labor.
Our active CSLB license and full liability coverage protect you from day one. Every crew member on your property is covered - no exceptions, no day-labor shortcuts.
We live and work in the same community. We know Concord's clay soils, its older housing stock, and the permit process at City Hall - no learning curve on your project.
We come to your property, assess the problem in person, and give you a written estimate before you commit to anything. No phone guesswork, no surprise charges.
Every finished job comes with a written warranty. If something fails because of our workmanship or materials, we come back and fix it - that commitment is in writing.
Ready to talk? Call (925) 536-0971 or send us a message.
The crew showed up on time, finished the retaining wall in three days, and cleaned up everything before they left. My yard was in worse shape before they arrived than after they left. Solid work.
Marcus T., Walnut Creek - Retaining Wall Construction
We had a chimney that had been leaking for two winters. They found the problem on the first visit, explained it clearly, and the repair held through the entire rainy season with no issues. Exactly what I needed.
Sandra K., Pleasant Hill - Chimney Repair
I had a long stretch of brick on my garden wall that had been crumbling for years. The tuckpointing they did matches the original brick so well you can barely tell where the new mortar starts. Very happy with how it looks.
James R., Concord - Tuckpointing
We respond within 1 business day - usually faster. There is no obligation to hire us after the estimate. After you submit this form, someone from our office will call to schedule a free on-site visit so we can see the work in person and give you an accurate, written price.
(925) 536-0971CDM Concord Masonry is based in Concord, CA and serves 12 cities across Contra Costa and Alameda Counties - including Walnut Creek, Pleasant Hill, Martinez, Antioch, and Livermore. We aim for same-week scheduling on most jobs. If you are unsure whether we cover your area, just call us.
Quick answers to the questions we hear most from homeowners in the East Bay.
Concord sits on expansive clay soil that swells with winter rain and shrinks in summer heat. That annual cycle is one of the leading causes of cracked foundations, shifted retaining walls, and open mortar joints in the East Bay. Homes built in the 1950s through 1970s - before modern soil testing - are especially vulnerable.
Diagonal cracks above doorways, horizontal cracks in a foundation wall, or any crack that has visibly grown over a few months should be evaluated promptly by a licensed mason. Hairline vertical cracks in drywall are common and less urgent - but document them with a photo and date so you can track any change.
Tuckpointing removes worn-out mortar from brick joints and replaces it with fresh material. Mortar is softer than brick by design - it absorbs stress so the bricks don't crack. When it fails, water gets in and the damage spreads. Most Concord homes from the 1960s and 1970s have never had their mortar touched and are overdue.
Surface-level cosmetic patching is something handy homeowners can manage. Anything structural - foundation cracks, chimney repairs, retaining walls, or load-bearing masonry - should be done by a licensed contractor. Improper repairs can trap moisture or use the wrong mortar hardness, which actually accelerates damage.
A California Contractors State License Board (CSLB) license means the contractor has passed trade exams, carries required insurance, and is subject to state oversight if something goes wrong. Hiring an unlicensed contractor for work over $500 leaves you with no legal recourse if the job fails. You can verify any license for free at cslb.ca.gov.
Done correctly with the right materials, tuckpointing lasts 20 to 30 years, a well-built retaining wall can last several decades, and a properly installed pier foundation repair is designed to last the life of the home. The key variable is whether the mortar mix, drainage, and installation match the local soil and climate conditions.
CDM Concord Masonry is a licensed and insured masonry company based in Concord, CA, serving 12 cities across Contra Costa and Alameda Counties since 2023.
Our license is issued by the California Contractors State License Board (CSLB), the state authority that regulates contractor qualifications, insurance, and professional conduct in California.
We offer 16 masonry services across residential and commercial properties - from foundation repair and brick work to outdoor kitchens and stone veneer. Every project is handled by our own licensed crew with no subcontracting.
Learn more about usAny crack wider than a quarter inch, any diagonal crack near a door or window frame, or any crack that has grown since you first noticed it should be evaluated by a licensed mason - not patched with caulk.
Tilting more than a few degrees, horizontal cracks running the length of the wall, or soil beginning to push through gaps are all signs the wall needs structural attention, not just cosmetic repair.
Ask for their CSLB license number, proof of insurance, a written estimate, and whether they will pull the required permit. A legitimate contractor answers all four questions without hesitation.
The Brick Industry Association publishes free technical guides on mortar standards and brick repair methods that are worth reading before any major project. When you are ready to talk through your specific situation, give us a call.
Concord is the largest city in Contra Costa County, with about 130,000 residents and a high owner-occupancy rate - roughly 55% of households own their homes. Most of the city was built up between the 1950s and 1980s during a period of rapid suburban growth east of San Francisco. The heart of the city is Todos Santos Plaza, a tree-lined public square surrounded by restaurants and shops that serves as the gathering point for farmers markets, concerts, and community events. Further east, the Concord Pavilion is one of the most recognized outdoor venues in the East Bay.
The dominant home style in Concord is the single-story ranch house from the postwar decades - low-pitched roofs, attached garages, and concrete driveways and patios that are now 40 to 70 years old. These homes sit on expansive clay soils that swell with winter rain and shrink in summer heat, putting steady stress on foundations, retaining walls, and masonry throughout the city. Concord, California is also located near the Concord Fault, which means seismic stress is an additional factor in the wear that brick chimneys, block walls, and mortar joints experience here over time.
CDM Concord Masonry serves homeowners throughout Concord - from neighborhoods near Todos Santos Plaza in the older downtown corridor to newer subdivisions near the hills with views of Mount Diablo. If you own a home in Concord and are seeing cracks, shifting masonry, or any of the other signs that the local soil and climate take a toll on over time, we are the team that knows this city and knows what those conditions do to brick, mortar, and concrete.
By appointment only, no walk-ins.
CDM Concord Masonry
1300 Galaxy Way STE 23
Concord, CA 94520
Monday to Saturday: 8 AM to 6 PM. Sunday: 10 AM to 2 PM.
Call (925) 536-0971 or fill out our contact form — we respond within 1 business day and the estimate is always free.
