Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Unilock Construction in San Francisco, CA | Penhallow Remodeling
Unilock paver work in San Francisco has to account for three things most cities never deal with: persistent marine fog, mapped liquefaction zones, and hillside runoff. Penhallow Remodeling, a General Contractor in San Francisco, provides independent Unilock service across the city, from the Sunset’s stabilized dunes to Noe Valley’s steep driveways. We’re not Unilock-authorized, but our hardscape crew has installed and restored Unilock pavers, retaining walls, and permeable systems across San Francisco for over a decade. Call (936) 259-2607 for a free estimate.
Why San Francisco Residents Choose Us for Unilock Service
Trevor Nash spent nearly two decades working residential projects across California before starting Penhallow Remodeling. What he learned from hillside foundation work in Los Angeles applies directly to San Francisco’s tiered lots: the base under the paver matters more than the paver itself. Give me the whole picture first, then we pick up the tools. That’s how we approach every Unilock job here.
We follow ICPI best practices on every install and repair. We stock Unilock OEM-color-matched pavers and genuine edge restraints locally, so we’re not waiting on a shipment from the Midwest while your driveway sits half-finished. Every tech is background-checked and arrives in uniform. You get a written price before work starts, and the 365-Day Done Right Promise covers the job in writing. If it fails inside the guarantee period, we come back and fix it at no charge.
Common Unilock Construction Problems We Solve in San Francisco
- Fog-driven efflorescence on Umbriano and Beacon Hill pavers. The marine layer that sits over the Sunset and Richmond districts keeps paver surfaces damp for months. Mineral salts rise to the surface and leave that chalky white bloom. We clean and re-seal, and we adjust the bedding so moisture drains instead of wicking.
- Base failure from liquefaction-prone subgrade in the Outer Sunset. Homes there sit on stabilized former sand dunes with shallow footings. Without geotextile separation and proper compaction, Unilock pavers settle unevenly within two or three wet seasons. We excavate deep, install the separation layer, and re-compact Class II base before any paver goes down.
- Joint sand erosion and paver shifting on hillside driveways. Noe Valley and Bernal Heights lots send runoff scouring through joints every time it rains. Polymeric sand washes out, edges get exposed, and pavers start creeping. We re-lay with proper slope and edge restraint so the system holds.
- Freeze-thaw spalling on Brussels Block near Twin Peaks. Overnight temps dip below freezing while daytime fog keeps stones saturated. That cycle pops the surface layer. We replace affected pavers with color-matched stock and adjust drainage to reduce saturation.
- Uneven settlement on patios built without a proper base. We see this constantly across the Mission and Castro: patios laid directly on native soil that heave and sink within a year. We lift, re-base, and re-lay the affected area rather than replacing the whole field when less than 30% is compromised.
Unilock Service in San Francisco: What Local Conditions Mean for Your Equipment
In San Francisco’s Outer Sunset, Unilock paver driveways must be engineered over stabilized former sand dunes with geotechnical review because the entire neighborhood sits in a mapped liquefaction zone. A requirement that does not apply to equivalent projects in Oakland or San Jose. When a contractor pulls permits for an addition or driveway in this part of the city, the DBI frequently requires a geotechnical report before signing off on anything above grade. That report tells you what’s under your feet: poorly consolidated dune sand that behaves like liquid during seismic events. For Unilock driveways, this means the base must be over-engineered. We excavated a sunken Brussels Block driveway on a fog-heavy block in the Outer Sunset last year. The original base had failed over dune sand and the pavers rocked under every car. Our crew dug to 12 inches, installed a geotextile separation layer and compacted Class II base, then re-laid the original pavers with new Unilock edge restraints and polymeric joint sand. The homeowner passed DBI inspection and no longer worries about the settlement that plagued the old installation.
Unilock Models & Products We Service in San Francisco
We work on every major Unilock line in current circulation around San Francisco: Brussels Block, Beacon Hill, Umbriano, and the Brussels Dimensional Stone series. For repairs, we use Unilock OEM-color-matched pavers and genuine Unilock edge restraints. But for base and bedding, we specify locally sourced Class II road base and washed concrete sand. They outperform generic substitutes in San Francisco’s wet, liquefaction-prone soils. Most standard paver repairs and driveway patches can be completed same-day with our Bathroom Remodeling in San Francisco team, since we keep common Unilock colors stocked locally. Large driveway replacements usually take three to five days depending on DBI inspection scheduling.
Unilock Service Pricing in San Francisco
We give written line-item quotes before work starts, and the number holds. What drives Unilock costs in San Francisco more than anything is the subgrade: flat lots on native soil run lower, while hillside or liquefaction-zone jobs need deeper excavation and geotechnical work. Here are our standard ranges:
| Service | Price Range |
|---|---|
| Paver Driveway Installation | $8,260 – $21,240 |
| Paver Patio Installation | $4,130 – $12,980 |
| Driveway Replacement | $5,900 – $16,520 |
Every estimate includes the inspection, written scope, and a takeoff of materials. Call (936) 259-2607 for an exact quote on your Unilock project in San Francisco. Estimates are free.
Serving San Francisco, CA - Our Local Coverage Area
We’re based in the San Francisco 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 San Francisco
Yes. In mapped liquefaction zones like the Outer Sunset, DBI requires geotechnical review before approving paver driveways. The base needs a geotextile separation layer and deeper compaction than standard. Call (936) 259-2607 and we’ll walk you through what your specific lot needs.
That’s efflorescence. Marine fog keeps the paver surface damp, and mineral salts from the bedding migrate up and crystallize. We remove it with a paver-safe cleaner and re-seal. It’s a common San Francisco condition, especially in the Richmond and Sunset. Call (936) 259-2607 to schedule a cleaning and sealing estimate.
Yes. We stock Unilock OEM-color-matched Brussels Block for patch repairs. For repairs under 30% of the paver field, we lift, re-base, and re-lay the affected area rather than replacing everything. Call (936) 259-2607 for a free inspection.
It adds time. Most paver driveways require DBI permit review, and in historic districts or liquefaction zones, Planning or geotechnical review can extend timelines by weeks. We pull permits and handle the inspections. Call (936) 259-2607 and we’ll map out the timeline for your address.
We recommend Unilock Umbriano for steep San Francisco driveways. Its tighter joints hold polymeric sand better under runoff, and the surface texture provides better traction when wet. Base depth and edge restraint matter just as much as the paver itself. Call (936) 259-2607 for a slope-specific estimate.
Service Areas Near San Francisco
We serve San Francisco and surrounding Bay Area communities. You’ll find our crews in Daly City, Pacifica, South San Francisco, Brisbane, and across the bridge in Oakland and Berkeley. For projects east of the bay, see our Unilock service in Sacramento and Unilock service in Fresno pages. Our full coverage is listed on the San Francisco service area page. For parts and product questions, visit Unilock sales & service.
Book Your Unilock Service in San Francisco Today
A live person answers the phone 24/7 at (936) 259-2607. Get a written price before any work starts, a real arrival window, and the 365-Day Done Right Promise in writing on every Unilock project in San Francisco.
Written by Trevor Nash, Owner at Penhallow Remodeling, serving San Francisco Unilock hardscape projects with written pricing and the Kingswell Guarantee.







Before
After
Before
After
Before
After