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Unilock Construction in Pasadena, CA | Elmstead Remodeling Pasadena
We provide independent Unilock construction and repair across Pasadena, from paver patios in Hastings Ranch to driveway replacements in Bungalow Heaven. The one thing that makes our Unilock work here different: we account for Pasadena’s clay soil movement and historic district design review before a single paver goes down. That’s the difference between a patio that still looks right five years later and one that shifts after the first winter. Call (626) 714-2992 for a free estimate.
Why Pasadena Residents Choose Us for Unilock Service

We’ve been working on Pasadena homes long enough to know that a Unilock driveway here behaves differently than one in Glendale or El Monte. The soil is different. The drainage is different. And in neighborhoods like Bungalow Heaven, the rules are different. Graham Stein, our owner, grew up in Los Angeles and trained at Los Angeles Trade-Technical College before spending nearly two decades on job sites across the San Gabriel Valley. He’s the person who walks your property, measures the slope, and tells you whether those pavers need a 4-inch base or a 6-inch base before he quotes a single dollar.
We’re independent, not authorized by Unilock. That means something useful: we give straight talk on repair versus replacement. If a section of your Unilock Brussels Block patio has failed because the original base was too shallow, we say so plainly and rebuild the foundation rather than just swapping surface pavers. We source factory-matched Unilock units for patching when color and texture need to blend into existing hardscape. For full replacements or expansions, we use current Unilock product lines that match the original style. And because we’re local to Pasadena, we keep the units our customers actually ask for moving quickly through our suppliers, not waiting on freight from across the country.
Styles & brands we work with







Common Unilock Construction Problems We Solve in Pasadena
- Clay soil expansion cracking paver joints. Pasadena’s hot, dry summers followed by wet winters cause clay-rich soil to expand and contract. On older homes with raised foundations, drainage wasn’t designed for interlocking concrete, so water sits where it shouldn’t and joints crack within a few seasons. We rebuild the base with proper aggregate depth and re-lay the same pavers when they’re salvageable.
- Historic walkways telegraphing settlement through new pavers. Homes in Bungalow Heaven often have original brick or concrete walkways that settled unevenly decades ago. When Unilock pavers are laid over compacted base without adequate depth, those dips show through as trip hazards within a year. We excavate to the right depth, not the convenient one.
- Root intrusion bowing edge restraints. Mature camphor and oak trees are everywhere in Pasadena yards. Their roots lift Unilock edge restraints and push borders outward within a few seasons. We remove the affected section, install root barrier where appropriate, and reset the edge with a deeper restraint system.
- Ember and ash damage near the San Gabriel foothills. Properties closer to the mountains face ember exposure during wildfire season. Unilock concrete units installed too close to wooden structures can scorch or crack, and ash-laden runoff wears down sealers faster. We recommend ember-resistant spacing and advise on sealer choices that hold up under Pasadena’s specific conditions.
- Design review rejections for front-yard hardscape. If you live in Bungalow Heaven or another historic district, front-yard Unilock work needs a Certificate of Appropriateness. We handle that process routinely and pair tumbled, old-world pavers with period-appropriate sand-set joints so the design passes without losing durability.
Unilock Service in Pasadena: What Local Conditions Mean for Your Equipment
If your home is in Pasadena’s Bungalow Heaven Landmark District, any front-yard hardscape alteration, including a Unilock paver driveway or walkway, requires a Certificate of Appropriateness if it’s visible from the public right-of-way. The design must complement the original Craftsman aesthetic, which is why we routinely pair Unilock’s Olde Quarry or Courtstone lines with sand-set joints rather than rigid mortar. These lines have the tumbled, old-world look the design review board expects, but they also perform well under Pasadena’s seasonal soil movement. We handle the paperwork, the design submittal, and the installation as one sequence, so homeowners aren’t left juggling city requirements on their own. This isn’t a problem you’d face in a newer city, and it’s the single biggest reason to hire a General Contractor in Pasadena who already knows the Bungalow Heaven process.
Unilock Models & Products We Service in Pasadena
We work with the full range of Unilock hardscape products homeowners choose in Pasadena, including Beacon Hill Flagstone, Courtstone, Brussels Block, and Olde Quarry. For patching, we source factory-matched units so color and texture blend into your existing hardscape rather than standing out as a repair. For full replacements, we use current Unilock product lines that complement the original style. Our supplier relationships in the San Gabriel Valley mean we can get most Unilock units to a Pasadena job site quickly, which matters when a trip hazard or failed section needs attention before the next family gathering. We’re also the team that handles Unilock sales & service questions without the manufacturer-runaround, because we’re independent and answer directly.
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AfterUnilock Service Pricing in Pasadena

Here’s what Unilock paver work costs in Pasadena right now, based on the project type and the amount of base prep required. These are the ranges we quote across our Pasadena service area, and we keep them consistent because families deserve to compare honestly.
| Project Type | Pasadena Price Range |
|---|---|
| Paver Patio Installation | $3,500 – $11,000 |
| Paver Driveway Installation | $7,000 – $18,000 |
| Driveway Replacement | $5,000 – $14,000 |
What drives the cost is base prep, not the pavers themselves. Pasadena’s clay soil means a proper driveway base is a 6-inch excavation with aggregate and geotextile fabric, not 2 inches of gravel on top of old dirt. Your free estimate includes a site walk with Graham or one of our senior techs, measurements, and a written line-item price before any work starts. Call (626) 714-2992 to schedule yours.
Serving Pasadena, CA - Our Local Coverage Area
We’re based in the Pasadena area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs – Unilock Construction in Pasadena
Most Unilock paver installations with sand-set joints meet Pasadena’s permeability intent because water infiltrates through the joints rather than sheeting off solid concrete. However, the city may require additional drainage features if your front yard slopes toward the street or your lot sits on expansive clay. We confirm the requirement for your specific property during the estimate, not after the project starts. Call (626) 714-2992 and we’ll check your address against current city standards before you commit to anything.
Yes, with the right base and drainage. Pasadena’s raised foundations often have crawl spaces with vents that release moisture into the soil immediately adjacent to the house. If water accumulates there, pavers shift. We install drainage that moves water away from the foundation line and use a compacted aggregate base that won’t hold water against the structure. The pavers themselves are fine over a raised foundation; the problem is always the base and water management underneath them.
Pasadena’s seasonal water restrictions typically prohibit most outdoor washing except for health and safety needs. For Unilock pavers, that means we recommend dry cleaning methods like sweeping and leaf blowing for routine maintenance, and we time any sealing work to the permitted windows. We also help homeowners choose sealers that perform well under Pasadena’s specific sun and ash exposure, which matters more than you’d think in foothill-adjacent neighborhoods.
Yes, but only with design review approval first. In Bungalow Heaven and other landmark districts, front-yard hardscape visible from the street requires a Certificate of Appropriateness. We prepare submittals that match the original Craftsman aesthetic using tumbled Unilock lines and period-appropriate joint treatments, and we’ve done enough of these in Pasadena to know exactly what the board looks for. The approval process adds time, not impossibility. Call (626) 714-2992 and we’ll walk you through what your specific street requires.
A properly installed Unilock patio in Pasadena typically lasts 20 to 30 years before the base or edge restraints show meaningful wear. Pasadena’s seasonal soil movement shortens that lifespan if the base was originally too shallow or drainage was ignored. We advise replacement when you see repeated settlement, joints that crack every winter no matter how often they’re re-sanded, or edge restraints that bow outward from root pressure. If the base is sound and only the surface units are worn, we patch instead of replacing. A free estimate tells you which path makes sense: (626) 714-2992.
Service Areas Near Pasadena
We serve the Unilock service in Glendale area for clients in the northern San Gabriel Valley, as well as Unilock service in Maywood for homes in the southeastern corridor. Our crews also work regularly in Altadena, El Monte, and Highland Park, so you can reach us for Unilock work across the broader Pasadena region without losing the local soil knowledge that matters.
Book Your Unilock Service in Pasadena Today
If your Unilock patio or driveway needs repair, replacement, or a Pasadena Bathroom Remodeling project, we’re ready to walk the site and give you a written price before any work begins. The price you see on paper is the price you pay at the end, no footnotes. Call (626) 714-2992 to schedule your free estimate.
Written by Graham Stein, Owner at Elmstead Remodeling Pasadena, serving Pasadena since 2005.












