Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Unilock Construction in Mountain View, CA | Rowan Construction Group Mountain View
We provide independent Unilock hardscape construction across Mountain View, from Rex Manor to North Bayshore, with base designs engineered for the city’s bayland soils and marine-moisture climate. Our crews install and repair Unilock paver driveways, patios, and walkways using genuine Unilock units and spec-compliant base systems, not generic substitutes. Call (669) 215-4852 to schedule your free written estimate.
Why Mountain View Residents Choose Us for Unilock Service
We’ve been working Mountain View’s service area steadily for years, including projects near Castro Street and the surrounding downtown blocks. Grant Rowan, our owner, learned the trade at Los Angeles Trade-Technical College, spending two years on framing, concrete, and finish work before ever collecting a paycheck on a real job site. That foundation shows in how we scope Unilock work: we name the base depth, the aggregate spec, and the edge restraint type in writing before anyone breaks ground.
We’re not a Unilock-authorized dealer, and we don’t pretend to be. We’re an independent contractor that installs Unilock sales & service systems to the manufacturer’s published standards, which means we can recommend the right product for your site’s soil and drainage instead of pushing whatever’s in a distributor’s warehouse. Our crews are background-checked and uniformed; a live person answers our phones 24/7; and every visit produces a documented photo record included as standard, not an upgrade.
Our pricing is flat and written before work starts, every time. Under Clause 1 of The Haven Standard, the number you agree to is the number you pay, plus or minus a few percent. No change order moves forward without your signature. That’s the discipline that has kept our projects within tight cost bounds across 4,000-plus jobs since 2007.
Common Unilock Construction Problems We Solve in Mountain View

- Efflorescence bloom on Brussels Block and Beacon Hill - Mountain View’s persistent marine fog keeps paver faces wet longer than inland Santa Clara County sites, drawing calcium salts to the surface. The white chalky residue isn’t a defect in the unit; it’s a moisture-cycle problem we address with proper drainage slope and, in severe cases, a breathable sealer application after the efflorescence has fully expressed.
- Polymeric sand joint failure and washout - Town Hall and Umbriano installations on sloped driveways near Shoreline suffer joint erosion where fog cycles and winter rain combine. Generic sand washes out; we use Unilock-spec polymeric jointing with the correct activation protocol for humid conditions.
- Differential settlement and paver lippage - The expansive clay and former bayland fill in northern Mountain View heaves and drops surface courses that would stay flat in Sunnyvale. We see this most often on 1950s-1970s slab-on-grade ranch properties where the original hardscape was laid without geotextile separation.
- Edge restraint failure and base migration - Driveways near North Bayshore and Shoreline push units out of plane as soil moves. Plastic edging cracks; concrete curbs separate. We install engineered edge restraint tied into a compacted aggregate base that resists lateral pressure.
- Corroded fasteners and premature finish degradation - Marine air accelerates oxidation on retaining wall and step unit hardware. We specify stainless or coated fasteners for Mountain View’s salt-laden fog, and we document the fastener grade in your written scope.
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AfterUnilock Service in Mountain View: What Local Conditions Mean for Your Equipment
The northern part of Mountain View, built on former baylands, is classified as a high-liquefaction-hazard zone by Santa Clara County. This isn’t abstract geology. It means paver driveways and patios in neighborhoods like Rex Manor and the North Bayshore district need an engineered base design - geotextile fabric, compacted aggregate to specified depth, and sometimes deep support - that a job two miles south in Sunnyvale would never trigger. Contractors pulling permits for hardscape work here routinely encounter city and county requirements for geotechnical review and engineered foundation systems, a cost and timeline factor that catches out-of-area builders off guard.
On a Rex Manor driveway off a 1950s slab-on-grade ranch, we pulled up a heaved Brussels Block surface and found the original base had been laid directly on expansive clay with no separation fabric - classic for this part of Mountain View. We excavated to competent depth, placed geotextile and compacted aggregate, reinstalled Brussels Block to Unilock specs with proper edge restraint, and the driveway has stayed in plane through two wet seasons. That’s the difference between a paver job that lasts and one that doesn’t in this city.
Marine moisture also shapes material selection. Mountain View’s fog accelerates exterior wood rot and fastener corrosion beyond what inland Santa Clara County cities experience. For retaining walls and steps, we specify hardware and finishes rated for coastal exposure, even though Mountain View isn’t on the ocean. The bay’s edge is enough.
Unilock Models & Products We Service in Mountain View

We work with the full Unilock residential line, with particular depth on the four systems most common in Mountain View:
- Brussels Block - The classic tumbled paver, heavily used in 1990s-2010s Mountain View driveways. We stock replacement units for color-matched repairs.
- Beacon Hill - Flagstone-style surface popular for patio upgrades in Cuesta Park and Old Mountain View infill projects. Requires precise base prep for the larger format.
- Town Hall - Historic cobble aesthetic, often specified by Mountain View architects for street-facing driveways. Joint width is critical; we use Unilock-spec sand, not bulk masonry sand.
- Umbriano - The exposed-aggregate contemporary finish, increasingly requested in newer construction and ADU courtyards near downtown. Color-matching requires factory-original units; aftermarket substitutes never blend.
We install genuine Unilock units and Unilock-spec polymeric jointing sand, base aggregate, and edge restraint. The jointing and base are where most premature failures originate. When an existing surface is sound, we re-level, re-sand, and re-restrain it. When the base or soil has failed, we rebuild the section. Topping over a failed base is cheaper today and expensive tomorrow.
Unilock Service Pricing in Mountain View
These are the price ranges for Unilock hardscape work we perform in Mountain View, based on current material costs and the labor required for proper base preparation in this market:
| Service | Price Range in Mountain View |
|---|---|
| Paver Driveway Installation | $7,000-$18,000 |
| Paver Patio Installation | $3,500-$11,000 |
| Driveway Replacement | $5,000-$14,000 |
| Driveway Sealing | $250-$700 |
What drives cost: excavation depth (bayland soils require more), geotextile and aggregate volume, unit price by color and finish, and edge restraint type. A written scope with line-item pricing is delivered before any work starts. Every quote includes the 365-Day Done Right Promise backed by The Haven Standard. Call (669) 215-4852 for your free estimate.
Serving Mountain View, CA - Our Local Coverage Area

We’re based in the Mountain View area and know this community well, and we also offer our Kitchen Remodeling in Mountain View. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Unilock Construction in Mountain View
It may, depending on the specific parcel and permit path. Mountain View’s northern zone is a high-liquefaction-hazard area, and city or county officials sometimes require geotechnical review for new hardscape with vehicle loading. We identify this requirement during our initial site visit and include any report cost in your written quote. Call (669) 215-4852 to schedule a free estimate and we’ll check your property’s status.
Efflorescence - calcium salts migrating through the paver face - is driven by moisture cycles, and Mountain View’s marine fog keeps surfaces wet longer than inland sites. Sunnyvale’s drier air lets salts evaporate before they crystallize. We address this with proper drainage design and, if needed, a breathable sealer applied after full efflorescence expression. Call (669) 215-4852 and we’ll assess whether it’s active efflorescence or a more serious base issue.
Yes, if the base is still sound. We remove the failing edge restraint, recompact the base where it has migrated, install engineered edge restraint, and re-sand with Unilock-spec polymeric jointing. This is typically 30-50% of replacement cost. If the base has failed, we tell you in the written estimate and recommend rebuild. Call (669) 215-4852 for a free assessment.
Expansive clay and bayland fill in northern Mountain View demand thicker base sections and smaller unit formats that tolerate minor movement. We might recommend Brussels Block over larger-format Beacon Hill for a driveway in Rex Manor, or specify deeper aggregate and geotextile for any system near Shoreline. The recommendation is site-specific, not brand-pushed. Call (669) 215-4852 and we’ll walk your property.
We install and repair Unilock retaining walls, steps, and raised patios throughout Mountain View, with hardware specified for marine-air exposure, and we also provide our Bathroom Remodeling in Mountain View. Fastener corrosion is a real failure mode here; we document the fastener grade in your scope. Call (669) 215-4852 for a free estimate on wall or step work.
Service Areas Near Mountain View

We serve Mountain View and surrounding communities including Unilock service in Los Altos, Unilock service in Sunnyvale, Palo Alto, Los Altos Hills, and Stanford. Each market has its own soil and microclimate conditions; our base designs and material specs adjust accordingly.
Book Your Unilock Service in Mountain View Today
Call (669) 215-4852 to schedule your free written estimate. We’ll walk your site, name the price before any work starts, and deliver a documented photo record on every visit. That’s how we’ve worked since 2007. Measure twice, write it down, then build it that way.
Written by Grant Rowan, Owner at Rowan Construction Group Mountain View, serving Mountain View since 2007.







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