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Unilock Construction in Lexington Hills, CA | Timberline Contractors
We provide independent Unilock construction service across Lexington Hills and nearby areas like Los Gatos Unilock service, including paver driveway installation, patio work, retaining walls, and drainage-corrected repairs. We’re not a factory-authorized dealer, and we won’t pretend to be – but we’ve set enough Unilock pavers on Santa Cruz Mountains slopes to know which systems hold up under saturated hillside soils and which ones fail when water isn’t managed first. If your Unilock driveway, patio, or Pisa2 wall is struggling in Lexington Hills, call (866) 253-5808 for a free estimate.

Why Lexington Hills Residents Choose Us for Unilock Service
Lexington Hills is a small redwood-forest community in the Santa Cruz Mountains where steep, wooded lots and heavy winter rain make erosion control, retaining walls, and drainage the defining construction challenges. Flat-lot paver work from the San Jose playbook doesn’t transfer here. We build from engineered base and drainage design rather than a catalogue, and we’re upfront that we’re not authorized, sponsored, or warranty-backed by Unilock. Our credibility comes from the work itself.
Nelson Fung founded Timberline Contractors after years of swinging hammers on everything from Eastside bungalow remodels to mid-size commercial builds across the LA basin. He learned the trade formally at Los Angeles Trade-Technical College, a few miles south of where he grew up in Chinatown. That background means he still explains why one substrate choice matters more than the finish on top of it – and in Lexington Hills, the substrate is everything. We bring genuine Unilock units, matching edge restraints, and polymeric joint sand for repairs so color and profile stay consistent with the existing field. For broader hardscape work, we also partner with Belgard and Techo-Bloc, which gives homeowners real material flexibility without juggling multiple contractors. Learn more about our Unilock sales & service depth.
Styles & brands we work with







Common Unilock Construction Problems We Solve in Lexington Hills
Here’s what we see repeatedly when homeowners call us out to Lexington Hills properties. Each issue ties back to the same root causes: slope, water, and organic soil.
- Brussels Block and Thornbury driveways washing out at the apron. After winter storms, hillside runoff concentrates at the driveway mouth. If the paver base was set on grade without a proper drainage outlet, the water undercuts the edge and the apron collapses. We pull the failed field, cut the base to full depth, and tie a new drainage outlet into the hillside grade before relaying pavers.
- Beacon Hill Flagstone patios heaving and settling. Redwood root zones and clay-heavy mountain soil weren’t excavated to full depth before compaction on many older installs. Roots grow, soil shifts, and the surface follows. We correct it by excavating to the right depth and compacting before any paver returns to the ground.
- Pisa2 retaining wall courses bulging or leaning. Saturated-soil winters push walls over when geogrid and gravel backfill weren’t engineered for the slope load. A leaning Pisa2 wall in Lexington Hills usually isn’t a paver problem – it’s a soil-and-water problem behind the wall. Our crew rebuilt one on a sloped parcel off the redwood lots after the homeowner fought it for two winters; proper geogrid and gravel backfill let saturated soils drain instead of pushing the wall over.
- Efflorescence and joint-sand loss under dense redwood canopy. Shade keeps Unilock surfaces damp, and runoff keeps flushing the joints. The white chalky bloom isn’t a product defect; it’s moisture moving through the paver. We stabilize joints with polymeric sand and address the drainage that causes the constant flushing.
- Driveway replacement where the subgrade itself is the problem. Sometimes we get called for re-sanding and the base is gone. When the subgrade is failing, we say so and recommend rebuild rather than re-sanding a doomed surface. A homeowner off the Lexington Hills redwood lots had a Brussels Block driveway wash out two winters running; pulling the failed field and correcting the base and drainage fixed what band-aid repairs never would.
Unilock Service in Lexington Hills: What Local Conditions Mean for Your Equipment
Lexington Hills sits under a dense redwood canopy on steep parcels, so Unilock installations here face shaded, slow-drying surfaces combined with concentrated hillside runoff. That’s the opposite of sun-baked flat-lot paver work you see in San Jose, Unilock service in Monte Sereno, or the valley. What this means in practice: a paver patio that dries within hours in Cupertino can stay damp for days underneath redwoods, which accelerates efflorescence and joint-sand breakdown. And a driveway that handles moderate rain on flat ground becomes a drainage channel on a Lexington Hills slope. We design positive drainage and joint stabilization before a single paver goes down. That’s not a preference. It’s the difference between a hardscape that lasts 20 years and one that fails the first heavy winter.
This is why our approach to Unilock work in Lexington Hills starts with water. Where does the hillside runoff go? Where does the canopy drip line fall? What’s the soil doing at excavation depth? If we can’t answer those questions, we’re guessing. And guessing on a sloped mountain lot expensive. Nelson Fung has a saying: “Do it right the first time or explain yourself twice.” On a Lexington Hills hillside, the explanation comes in the form of a washed-out driveway or a leaning wall.
Unilock Models & Products We Service in Lexington Hills
We work with the Unilock lines most common across Lexington Hills properties: Brussels Block, Beacon Hill Flagstone, Thornbury Cobblestone, and the Pisa2 retaining wall system. For repairs, we source genuine Unilock units so the color, texture, and profile match the existing field – you don’t want a patch that looks like a patch. Edge restraints get matched the same way. For base aggregate, drainage components, and certain subgrade corrections, we’ll use quality aftermarket materials where they outperform the original spec. Polymeric joint sand is stocked locally for fast Lexington Hills turnaround on paver repairs. We also service Unilock service in Brookdale and Unilock service in Lompico with the same slope-aware approach.
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AfterUnilock Service Pricing in Lexington Hills
Pricing depends on the scope, the site access, and how much subgrade work the slope demands. Here are the ranges we typically quote for Unilock construction in Lexington Hills and Unilock repair in Cambrian Park:
| Service | Price Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Driveway Replacement | $5,000 – $14,000 |
What drives the number: excavation depth, drainage work, wall repair scope, and whether we’re working on a Lexington Hills lot with limited equipment access. Every estimate is free and includes a site walk so we can show you exactly where the water is going before we quote a number. Call (866) 253-5808 to schedule a free estimate.
Serving Lexington Hills, CA — Our Local Coverage Area
We’re based in the Lexington Hills area and know this community well, with coverage extending to Unilock repair in Scotts Valley. Use the map below to see our full service coverage — if you’re nearby, we can almost certainly help.
FAQs – Unilock Construction in Lexington Hills
Hillside runoff concentrates at the driveway apron, and if the paver base was set on grade without a drainage outlet, water undercuts the edge and the field collapses. Most Lexington Hills washouts trace back to a missing or undersized drainage path, not a product failure. We correct the base and tie in positive drainage before relaying pavers. Call (866) 253-5808 for an exact look at your driveway.
It depends on what’s behind the wall. If geogrid and gravel backfill are intact and the lean is minor, a repair may be possible. If saturated soils pushed the wall over because the backfill wasn’t engineered for slope load, rebuilding with proper drainage is the honest answer. We’ll tell you which one yours is after a site inspection. Estimates are free – call (866) 253-5808.
Yes, both. Redwood roots shift soil and heave pavers when they grow beneath the base, and dense canopy shade keeps surfaces damp, which accelerates efflorescence and joint-sand loss. We account for root zones in excavation depth and stabilize joints with polymeric sand. It’s part of every Unilock patio scope we quote in Lexington Hills.
Deeper than flat-lot installs. We typically excavate beyond standard depth on sloped Lexington Hills parcels because clay-heavy mountain soil and root activity demand more compaction and better drainage. The exact depth depends on soil conditions at your site. Call (866) 253-5808 for a free estimate and we’ll dig a test hole while we’re there.
We schedule Lexington Hills Unilock work around winter storm windows. Heavy rain and saturated soils make excavation and compaction unreliable, so we sequence work accordingly. Spring through fall is our busiest window for paver driveway and patio installation, but we take bookings year-round. Call (866) 253-5808 to get on the schedule.
Service Areas Near Lexington Hills
We serve Lexington Hills and the surrounding Santa Cruz Mountains communities. Our Unilock crews also work in Chinatown, San Francisco, the Mission District, Buena Park, Hesperia, and Cypress when projects take us over the hill. If you’re not sure whether your property is in our coverage area, call – we’ll tell you straight. We also maintain a full Lexington Hills service area page with more local detail.
Book Your Unilock Service in Lexington Hills Today
Call (866) 253-5808 to schedule a free estimate for Unilock paver driveway, patio, or retaining wall work in Lexington Hills. We’ll walk the site, show you where the water is going, and give you a written line-item quote. No pressure, no jargon – just a straight answer from a contractor who’s built on mountain slopes long enough to know what fails and why.
Written by Nelson Fung, Owner at Timberline Contractors, serving Lexington Hills for years with slope-aware Unilock construction and hardscape service.