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Unilock Construction in Portola Valley, CA | Brookside Contractors
We provide independent Unilock paver and retaining wall installation, repair, and re-sanding across Portola Valley, CA, as your local Portola Valley General Contractor. What makes our Unilock work different here is that we plan every job around the town’s strict heritage-oak protection rules, narrow private lanes, and WUI defensible-space requirements before the first pallet ever arrives. Call (833) 725-3508 to talk through your project and get a straight read on timeline, access, and cost.

If you’ve got a settling paver driveway, a patio that’s losing joint sand, or a retaining wall starting to lean after a wet winter, you’re in the right place. We work extensively with Unilock sales & service products across the Peninsula, and we know which systems hold up on Portola Valley’s steep, oak-wooded slopes and which ones fight the terrain.
Why Portola Valley Residents Choose Us for Unilock Service
Most paving crews can lay blocks in a straight line. The difference shows up when the grade pitches hard, when drainage from a seasonal creek surges across an apron, or when Cal Fire’s vegetation rules say you can’t touch that oak’s root zone. That’s the work we do every week in Portola Valley service area homes.
Nate Burrell grew up watching crews frame up half of Paradise Valley in Morgan Hill, and he trained in construction technology at Gavilan College before spending two decades on job sites throughout South Santa Clara County. What he drilled into our crew is simple: do it once, do it right, everything else is just a future repair bill. On Unilock work, that means proper base compaction on clay, edge restraints that don’t float after one winter, and joint sand that survives fog and runoff. We’re a licensed general contractor, insured and bonded, and we use genuine Unilock-manufactured units for repairs so color and dimensional profiles match your existing field.
We’re an independent contractor. Not authorized or sponsored by Unilock. That’s actually an advantage, because we recommend what we’ve seen perform in Portola Valley rather than what a manufacturer’s rep wants pushed.
Styles & brands we work with







Common Unilock Construction Problems We Solve in Portola Valley
- Edge restraint failure on steep driveway aprons. Portola Valley driveways pitch harder than almost anywhere else in San Mateo County. When fall and winter rain concentrates runoff across an apron, plastic edge restraints without proper spike depth start to creep. Pavers migrate, gaps open, and the whole field shifts downhill. We reset restraints with deeper anchoring and re-grade the base so water moves around the field, not through it.
- Settling and rutting over native clay. The valley’s soil is heavy clay that expands when wet and shrinks when dry. If the base course was compacted too shallow, or if a contractor skipped a geotextile separator, you’ll get ruts where vehicles load the surface. We see this most on narrow private lanes where delivery trucks and fire equipment travel.
- Efflorescence and joint-sand washout on west-facing patios. Fog sits in Portola Valley longer than most people expect, especially on west-facing exposures. Damp surfaces slow evaporation, pulling mineral salts up through pavers as white efflorescence. That same moisture cycle breaks down polymeric joint sand faster. We clean, re-sand, and seal where appropriate.
- Paver loosening around heritage-oak root zones. When tree-protection plans limit excavation near mature oaks, the typical compaction specs go out the window. Roots grow, lift pavers, and crack the field. We handle paver layouts that accommodate root movement without committing arborist-review violations.
- Joint-sand loss where hillside runoff crosses the hardscape. Late summer thunderstorms and early season rains send water down Portola Valley’s hillsides fast. Unprotected paver joints wash out, leaving blocks to chatter loose. We re-sand with polymeric material rated for slope drainage and install drainage swales or channel drains where the water wants to go.
Unilock Service in Portola Valley: What Local Conditions Mean for Your Equipment
Here’s something a generic Unilock page won’t tell you. Because Portola Valley’s heritage-oak protection plans and narrow private lanes often block standard delivery trucks, Unilock paver pallets frequently have to be shuttled or staged off-site before a driveway or patio can be laid. A full semi with 20 pallets of Brussels Block simply cannot back up a private road with a 12-foot width and a root-protection fence on both sides. So we scope delivery access into the job before the first base course goes down. That means walking your lane with a tape measure, checking overhead clearance, confirming whether a smaller flatbed can make the turn, and sometimes staging product on a neighbor’s flat section with written permission. If we skip this step, your project stalls on day one with a truckload of pavers sitting on the county road. This is baked into our Portola Valley estimates, not added as a change order later.
Unilock Models & Products We Service in Portola Valley
We install, repair, and re-sand the full Unilock line most common on Peninsula properties. Brussels Block is the workhorse for driveways because the 60mm and 80mm options handle vehicle loads. Beacon Hill works well for paths and patios where a more tailored look is wanted. The Brussels Dimensional System gives clean, modular lines on contemporary Portola Valley rebuilds, and we also offer Stanford Unilock service nearby. Seneca Valley retaining wall blocks hold slopes and terraces. Eco-Priora permeable pavers meet stormwater requirements where driveway runoff rules are strict.
For repairs, including our Ladera Unilock service, we use genuine Unilock-manufactured units so color and dimension match the existing field. We keep base, bedding, and polymeric joint sand supplied from aftermarket sources suited to Portola Valley’s drainage and fire-defensible requirements. If your paver field is 80% sound, we repair and re-sand rather than push a tear-out. If the base is failed across a slope, we’ll tell you replacement is the honest call.
See the difference
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AfterUnilock Service Pricing in Portola Valley
Portola Valley Unilock work costs a bit more than flatland work for the same reason everything else does here: access, grading, and compliance. Narrow lane shuttling adds delivery cost. Oak-protection plans add staging time. Slope work adds base depth and drainage materials. You’re not paying a premium for our ego. You’re paying for a field that stays flat through the next five winters.
| Service | Typical Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Driveway Replacement | $5,000 – $14,000 |
Each estimate includes a site walk for access and drainage, base depth calculation for your soil and slope, material takeoff with Unilock product selection, and a written line-item quote. Nothing vague. Call (833) 725-3508 to get on the schedule.
Serving Portola Valley, CA — Our Local Coverage Area
We’re based in the Portola Valley 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 Portola Valley
Yes, when the base is built for the slope and the drainage is designed into the field. Steep pitches need deeper base compaction, geotextile separator over clay, and edge restraints anchored below the frost line. Runoff needs a defined path, usually a channel drain or swale at the apron. We’ve seen properly built Unilock driveways hold on 15% grades without shifting. Call (833) 725-3508 for a slope-specific assessment, free.
It can be, but only if nobody planned for it. Many Portola Valley lanes can’t take a full semi, so we shuttle pallets on smaller flatbeds or stage off-site with neighbor permission and your HOA or fire district sign-off where needed. This gets scoped into the quote before you sign.
They can be, if the paver layout and base accommodate root movement. Tree-protection plans often limit excavation depth and grade changes in oak root zones. We work within those constraints, using permeable Eco-Priora or modified base designs that let roots breathe. This is standard practice for us in Portola Valley.
Look at the edges. If edge restraints are intact and only surface settlement is present under a few spots, repair and re-sanding will get you another decade. If the field has migrated several inches, edges have collapsed, and you can see exposed base, the base has failed and replacement is the honest call. We’ll tell you which one you’re looking at during the free estimate. Call (833) 725-3508.
Yes, and more than most homeowners expect. Hardscape in your 0-5 foot ember-resistant zone is actually encouraged by Cal Fire since it’s noncombustible. But we still have to follow WUI rules on vegetation clearance around the work area and coordinate with your annual wildland fire inspection schedule. We’ve done enough of these to keep the job on track without a fire marshal stop-order.
Service Areas Near Portola Valley
We run Unilock crews throughout the Peninsula corridor. You’ll find us working on paver jobs in Morgan Hill, Gilroy, and San Martin, and we regularly handle compact access and slope work in Unilock service in West Menlo Park. For larger estate properties and long private drives, Unilock service in Woodside keeps us busy most seasons. If you’re in Corralitos or Interlaken, we’ll bring the same planning discipline.
On a wooded lane off Los Trancos Road in an area where we also provide Unilock in Los Altos Hills, a homeowner’s Brussels Block paver driveway had settled and shifted where runoff from the hillside crossed the apron. Our crew found shallow base over clay under the migrated field. We reset the edge restraints, re-compacted and re-graded the base for drainage, laid new Brussels Block units to match, and re-sanded with polymeric joint sand. Pallets were shuttled up the narrow private drive on a smaller truck per the oak-protection access plan. That’s what proper Unilock work in Portola Valley looks like.
Book Your Unilock Service in Portola Valley Today
Ready to get your paver driveway, patio, or retaining wall sorted? Call (833) 725-3508 for a free estimate. We’ll walk the site, check access and drainage, and give you a written line-item quote before any work starts.
Written by Nate Burrell, Owner & General Contractor at Brookside Contractors, serving Portola Valley and the wider Peninsula through one license, one point of contact, and one straight answer when it matters.