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Unilock Construction in San Francisco, CA | Sawyer Remodeling
We install and repair Unilock pavers, walls, and step units across San Francisco, from the Sunset to Bernal Heights. No manufacturer affiliation, no corporate script. Just a crew that has spent years learning how Unilock products hold up in fog, salt air, and on steep hillside lots. Call (254) 272-5876 for a free estimate on paver driveways, patios, and retaining walls.
We’re Sawyer Remodeling, and we treat Unilock work as its own discipline. Most contractors will install whatever paver you point at. We know which Unilock lines fail first on a north-facing Noe Valley slope and which ones shrug off ten years of Richmond District fog. That product depth is the whole reason this page exists. If you want Unilock sales & service from a crew that knows the product family inside and out, you’re in the right place.
Why San Francisco Residents Choose Us for Unilock Service

Luca Romano, our owner, has spent over two decades swinging tools and reading plans without guessing. He started at Los Angeles Trade-Technical College learning framing and finish carpentry, then spent years on hardscape and exterior work where drainage and slope control separate good jobs from callbacks. That background matters in San Francisco, where a flat suburban base prep will fail on a 25% grade. Good work doesn’t need a sales pitch – it just needs to be done right.
We’re an independent Unilock service crew. We don’t answer to a manufacturer rep, and we won’t push a product line that doesn’t fit your lot. What we do bring is product-specific experience: we’ve torn out failed Unilock installs, matched existing Brussels Block for partial driveway repairs, and rebuilt walls that were never compacted right in the first place. Our techs show up background-checked and uniformed, with a written price in hand before any tool comes off the truck. That’s The Relay Standard: live arrival time, photo updates, and a number that doesn’t move.
Styles & brands we work with







Common Unilock Construction Problems We Solve in San Francisco
- Efflorescence and salt staining on pavers. Persistent fog and marine moisture push minerals up through Unilock pavers, leaving a white chalky residue. It’s worse on north-facing slopes and properties within a few blocks of the ocean. We clean and seal affected areas, and we’ll tell you honestly when a paver is too far gone and needs replacement.
- Joint sand erosion and paver shifting. Heavy winter rains wash joint sand out fast on steep, terraced lots with poor drainage. Once the sand goes, pavers start moving. We recompact, re-sand with a locally appropriate polymeric product, and fix the drainage problem that caused it – because re-sanding alone just sets up the next failure.
- Surface spalling and color fade on wall units. Coastal salt-laden air and constant UV exposure pockmark Unilock wall faces over time. Copthorne and Estate Wall units show it first. We can replace individual damaged units where color match allows, or rebuild the wall face in sections if the damage is widespread.
- Base failure and settling on hillside installations. This is the big one in San Francisco. Improper compaction or missing geogrid lets Unilock pavers sink and walls bulge. It’s not a cosmetic issue – it’s a structural one. We rebuild the base properly, which is the only fix that lasts.
- Drainage runoff eroding Unilock driveways. Hillside runoff channels water under paver driveways and eats the base from below. We install channel drains and re-grade so water moves around the installation, not through it.
Unilock Service in San Francisco: What Local Conditions Mean for Your Equipment

San Francisco’s steep, terraced lots require engineered retaining walls and stepped paver designs that meet strict city grading and drainage codes. Flat-lot suburbs never face this. A standard Unilock base prep – six inches of compacted aggregate, a sand setting bed, done – won’t hold on a Glen Park hillside where the grade runs 20 to 30 percent. The city’s Department of Building Inspection reviews retaining walls over a certain height, and drainage plans have to prove runoff won’t wash into the neighbor’s yard or the public right-of-way. Our Unilock installations integrate site-specific slope stabilization: geogrid layers, stepped wall setbacks, and drainage channels sized for actual rainfall. That’s why we reference The Relay Visibility Guarantee on every project: you’ll see the plan, the price, and the permit path before we dig.
Our crew recently rebuilt a failing Unilock Brussels Block driveway in Noe Valley where years of hillside runoff eroded the base and caused widespread settling. We pulled the affected pavers, recompacted the base with proper slope, reinstalled the original Brussels Block units with fresh joint sand, and added a channel drain to handle the flow. The driveway is stable, code-compliant, and still matches the home’s original Unilock look.
Unilock Models & Products We Service in San Francisco
We work with the full Unilock residential hardscape range you’ll find across San Francisco’s older homes: Brussels Block driveways and walkways, Beacon Hill paver patios, Estate Wall retaining systems, and Copthorne premium paver surfaces. For repairs, we source genuine Unilock replacement pavers and wall units when color and dimension matching is critical. For base materials, joint sand, and drainage components, we use high-quality aftermarket products that meet or exceed Unilock specs – because the base doesn’t care whose bag it came in, it cares about compaction and drainage.
See the difference
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AfterUnilock Service Pricing in San Francisco

Here’s what Unilock hardscape work costs in San Francisco. These ranges cover typical residential projects on moderate to steep lots:
| Service | Price Range |
|---|---|
| Paver Driveway Installation | $8,260 – $21,240 |
| Paver Patio Installation | $4,130 – $12,980 |
| Driveway Replacement | $5,900 – $16,520 |
What moves the number: slope percentage, access for equipment, retaining wall requirements, drainage additions, and whether existing base material can be reused. A written line-item quote breaks all of it down before we start, so you know exactly where every dollar goes. Call (254) 272-5876 and we’ll walk the site and put the number in your hands.
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 most cases we can source genuine Unilock Brussels Block units to match your existing color and dimensions. The catch is age: pavers that have been down for ten-plus years have UV-faded, so a brand-new unit will read slightly different against the old ones. We’ll tell you that upfront and show you samples before any work starts. Call (254) 272-5876 for a free match assessment.
Fog means persistent moisture, which drives efflorescence (white mineral deposits) up through pavers and accelerates surface spalling on wall units, especially within a few blocks of the coast or in fog-belt neighborhoods like the Sunset and Richmond. We clean, seal, and replace affected units as needed. Your specific site determines the right fix, so give us a call at (254) 272-5876 and we’ll take a look.
Yes. Retaining walls over a certain height and significant grading changes require city permits in San Francisco, and we handle the paperwork and inspections. If slope stabilization or a drainage plan is required for our Bathroom Remodeling in San Francisco or hardscape projects, we include it in the scope and price. We’ll pull permits, pass inspections, and you’ll see documentation at every step.
A properly installed Unilock paver driveway on a San Francisco hillside lot lasts 20 to 30 years – provided the base was compacted right and drainage was handled. Most failures we see happen inside five years because the base was under-built or water was allowed to run through it. We build for the long haul, and our 365-Day Done Right Promise covers the first full year after completion.
Sometimes, but we rarely recommend it on San Francisco sloped lots. Concrete overlays leave you with the same drainage and settling problems underneath, and hillside movement will telegraph through. In most cases, we pull the concrete, rebuild the base with proper slope, and install Unilock pavers on a foundation built for the grade. Call (254) 272-5876 and we’ll assess your driveway in person.
Service Areas Near San Francisco
We serve all of San Francisco plus surrounding communities. You’ll find our San Francisco service area covers the full city. We also work on projects in Unilock service in Fresno and Unilock service in Sacramento. Los Angeles, San Jose, and San Diego are within reach as well.
Book Your Unilock Service in San Francisco Today
Ready to see what a properly built Unilock driveway or patio looks like on your San Francisco lot? Call (254) 272-5876 to schedule your free estimate. We’ll walk the site, explain what’s needed, and hand you a written price before any work begins.
Written by Luca Romano, Owner at Sawyer Remodeling, a General Contractor in San Francisco, serving the area since 2005.











