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Unilock Construction in San Francisco, CA | San Bernardino Contractors
If you’re searching for Unilock construction service in San Francisco, here’s the quick answer: we’re an independent contractor that installs and repairs Unilock hardscape systems across the city, and the thing that makes our work different here is that we plan for the fog belt, the historic-district review, and those brutally tight 25-foot lots before we ever order the first pallet of pavers. We’re not manufacturer-affiliated or authorized, which means we’re free to recommend what actually holds up in San Francisco’s damp, dense neighborhoods rather than what a distribution agreement pushes. Call us at (855) 473-5620 for a free estimate. We also handle broader Unilock sales & service work beyond the city itself.
Why San Francisco Residents Choose Us for Unilock Service
Ruben Castillo, our owner, started out watching his uncle frame garages and reroof houses on a shoestring budget in San Bernardino, then got serious about load paths and structural details at San Bernardino Valley College. That background matters because Unilock work in San Francisco is never just slapping pavers on sand. It’s assessing what’s underneath, what the neighbor’s foundation is doing, and whether the fog is going to keep your joint sand wet for nine months a year. We’ve installed Brussels Block patios, Brussels Dimensional driveways, U-Cara wall systems, and Onyx pavers on lots where the side yard is three feet wide and the delivery truck can’t get within a block of the house. That’s the job. We quote it honestly and we build it right. If it’s not built right the first time, you’re just paying for it twice.
Styles & brands we work with
Common Unilock Construction Problems We Solve in San Francisco
- Efflorescence and moss on north-facing Brussels Block pavers. The fog belt keeps joints damp for weeks at a time. We tear out contaminated joint sand, re-compact, and resand with a polymer that’s actually suited to persistent marine moisture, which most generic installs in San Francisco never used in the first place.
- Edge restraint failure on party-wall lots. When your paver edge butts directly against a neighbor’s footing, there’s no room to haunch properly. We’ve seen paver migration into adjacent properties more times than we can count. We spec Unilock’s own edge restraint and anchor it where the lot gives us no room to work.
- Settlement over undocumented fill and old orchard lines. Pre-1940s Victorian and Edwardian lots in San Francisco routinely hide brick cisterns, abandoned irrigation pipes, and loose fill under what looks like a stable yard. We excavate and rebuild the sub-base with compacted Class II aggregate and geogrid before laying a single Unilock unit.
- Surface spalling where pavers meet historic facades. Wind-driven rain finds failed flashings and sealant joints, then runs down the facade and onto the paver edge. The repeated wet-dry cycle spalls the surface over time. We fix the drainage first, then address the paver surface.
- Polymeric sand erosion on sloped rear yards. San Francisco’s rear yards often pitch toward the house or the property line. When water sheets across a paver surface fast enough, the joint sand washes out. We regrade gently and install drainage so the surface stops losing material every winter.
Unilock Service in San Francisco: What Local Conditions Mean for Your Equipment
San Francisco’s dozens of historic districts and Article 10 landmark buildings change the permitting math for hardscape work in a way that neighboring counties almost never see. A simple rear-yard Unilock paver patio on a protected Victorian in a neighborhood like Noe Valley can require Historic Preservation Commission review of the hardscape materials themselves, including visibility from the public right-of-way. If the patio reads from the street as a modern intervention on a landmark facade, the commission will ask questions. Contractors who don’t know this bid the job low, get flagged mid-permit, and leave the homeowner in review limbo. We file with SF Planning and DBI knowing exactly what triggers a preservation review, and we spec Unilock profiles that read as period-appropriate where that’s the deciding factor. That’s also why we keep San Francisco service area work in-house from permit to final compaction and it’s not something we hand off to a sub who’s never sat through a planning hearing.
Unilock Models & Products We Service in San Francisco
We install and repair the full Unilock residential range you’re likely to see on San Francisco lots: Brussels Block, Brussels Dimensional, the U-Cara Wall System, and Onyx pavers. We specify Unilock’s own edge restraint and joint sand as OEM components because they’re manufactured to work with the paver dimensions and chamfers. Where Unilock doesn’t make a suitable part, we pair the system with compatible aftermarket geogrids and drainage fittings we’ve tested on local jobs. We keep common Unilock edge restraints and joint sand stocked for fast turnaround, and we can usually have replacement pavers for discontinued color runs matched and delivered inside a week. When an existing Unilock surface has heaved but the units are still sound, we rebuild the base rather than replace the pavers. If the surface is spalling or the color’s gone, we’ll tell you a full tear-out is cheaper over five years than patching.
See the difference
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After
Before
After
Before
AfterUnilock Service Pricing in San Francisco
| Service | Price Range |
|---|---|
| Paver Patio Installation | $4,130 – $12,980 |
| Paver Driveway Installation | $8,260 – $21,240 |
| Home Addition | $53,100 – $153,400 |
Your cost depends on what we find when we open the ground: the cistern, the old fill, the neighbor’s overhanging footing, the drainage that was never installed. That’s why our free estimate includes an on-site visit and a look at what’s actually under your yard, not a photo sent through a website form. Call (855) 473-5620 to schedule yours.
Serving San Francisco, CA — Our Local Coverage Area
As a San Francisco General Contractor, we’re based in the 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 most cases a paver patio in San Francisco needs a permit, and if your property is in a historic district or a designated Article 10 landmark, the Historic Preservation Commission may review the hardscape materials and any visibility from the public right-of-way. We handle the filings and know which Unilock profiles clear review without a fight. Call (855) 473-5620 and we’ll check your address against the district maps before you spend a dollar.
The fog belt means persistent damp, which promotes moss and efflorescence on north-facing surfaces and keeps joint sand wet for months. We adjust the base depth, the joint sand type, and the drainage plan to account for that, and we recommend sealing on surfaces that sit in the shade all year. Different neighborhoods within San Francisco, from the Sunset to Glen Park to Noe Valley, have very different microclimates, and we read the site before we spec anything.
Yes, but the constraint is side-yard access and the fact that the driveway will likely butt against a neighbor’s foundation edge. We’ve done it on lots where the delivery truck parks a block away and every pallet is hand-carried through a gate. The base goes in with compacted Class II aggregate and geogrid, and the edge restraint gets anchored to whatever’s available at the property line. Tell us where you are in the Mission and we’ll come look at the access — whether you need Unilock in Mission District or nearby. Call (855) 473-5620.
The big ones are old brick cisterns, uncompacted fill, abandoned orchard or garden irrigation lines, and concrete slabs poured directly over loose material. On a narrow Edwardian lot in the Inner Richmond — and we’ve seen similar in Visitacion Valley — we pulled up a concrete slab and found a brick cistern underneath with nothing but open space below it. We removed the slab, broke out the cistern, rebuilt the base with six inches of compacted Class II aggregate and geogrid, and hand-carried the pallets through the side yard. The patio now drains to a daylighted outlet at the rear line, and the party-wall access letter stayed on file with the permit.
Any retaining wall over four feet in height, measured from the base of the footing to the top of the wall, requires engineered drawings and a permit in San Francisco, and anything under that still has to meet setback and drainage requirements. We bring in a local structural engineer when the wall exceeds the threshold or when the soil report shows undocumented fill. U-Cara walls in particular need properly spec’d geogrid reinforcement on the backside in San Francisco’s clay-heavy soils. Call (855) 473-5620 for an exact figure on your wall.
Service Areas Near San Francisco
We take Unilock construction work throughout the city and across the bay, including Unilock service in Chinatown where access means small loads and early morning deliveries, and Unilock service in Tiburon where sloping lots and bay-facing drainage change the spec. We also cover Fontana, Bloomington, Rialto, Sunnyslope, Glen Avon, and Muscoy for clients who need San Francisco-level work done right in the surrounding area.
Book Your Unilock Service in San Francisco Today
If you’re planning a Unilock paver patio, driveway, or wall on a San Francisco lot, call us before you dig. We’ll walk the site, check the permit path for your address, and give you a written quote that reflects what’s actually under your yard, not a guess. Call Ruben and the team at San Bernardino Contractors: (855) 473-5620.
Written by Ruben Castillo, Owner at San Bernardino Contractors, serving San Francisco since day one.