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Unilock Construction in Fountain Valley, CA | Square One Builders
We install, repair, and re-lay Unilock pavers and retaining walls across Fountain Valley as an independent builder, not a dealer, and we also handle Unilock repair in Costa Mesa. What makes our Unilock work different here is simple: we know what’s under the surface of these 1960s and 70s tract lots, and we plan the base accordingly. If you’re weighing a paver driveway or patio, call (877) 688-9930 for a free estimate and we’ll tell you what your yard actually needs.

Why Fountain Valley Residents Choose Us for Unilock Service
Brent Calloway has spent nearly three decades working on Orange County homes, and he learned early that a paver job only looks as good as the base beneath it. Fountain Valley’s original tract homes sit on decades-old fill, clay-heavy soil, and irrigation lines nobody mapped. We’ve done the tear-outs. We’ve seen the heaved driveways and the joints full of washed-out sand. That’s why our approach to Unilock work starts with probing and compaction, not with the pretty paver on top. We work with the full Unilock line, including Unilock sales & service across paver driveways, patios, and retaining walls, and we spec materials based on what your lot actually gives us to work with.
Styles & brands we work with







Common Unilock Construction Problems We Solve in Fountain Valley
- Efflorescence bloom on Brussels Block and Cambridge faces. Fountain Valley’s marine layer keeps surfaces damp, and irrigation overspray adds more moisture. The white chalky film that appears isn’t a defect; it’s soluble salt migrating through the paver. We clean it properly and adjust drainage so it stays gone.
- Joint sand washout and edge settling. Many original tract lots were reworked without a geotextile or proper base depth. When the sand washes out of the joints, the edges start to sink and shift. We re-excavate, lay fabric, re-compact in lifts, and re-lay the pavers to hold.
- Polymeric sand hazing and crumbling. After Fountain Valley’s winter rains, we see surfaces where someone overfilled the joints or installed the sand damp. It turns hazy, then crumbles. We strip the failed sand, prep the joints dry, and re-apply correctly so it sets and stays flexible.
- ArmorTec face spalling at driveway aprons and turns. Point loads concentrate where cars turn in and out. On a too-stiff base, the paver face chips and spalls. We saw this exact pattern on a driveway apron off a 1960s rancher near Mile Square Park, and the fix was a full re-lay over a properly graded aggregate base.
- Retaining wall movement on Pisa2. Fountain Valley’s flat lots hide old root voids and soft fill behind the wall face. When a Pisa2 wall starts to lean or open at the joints, it’s almost always a base or drainage issue, not the block. We rebuild with proper crushed rock, fabric, and weep lines.
Unilock Service in Fountain Valley: What Local Conditions Mean for Your Equipment
Here’s the part a generic paver page skips. Fountain Valley was master-planned in the 1960s and 70s, and those original tract lots were graded with whatever fill was on hand. Under a thin layer of topsoil you’ll often find clay-heavy fill, old tree-root voids from long-gone landscaping, and irrigation lines that were never drawn on any plan. That means a paver driveway or patio that looks flat and ready on the surface can be sitting on a base that never truly compacted. We probe before we quote. We check for soft spots, locate old irrigation runs, and re-compact in lifts before a single Unilock paver goes down. Skip that step and the best-laid Brussels Block will heave within two seasons. On a job near Mile Square Park, our crew pulled up a heaved Brussels Block driveway and found the original base sitting on uncompacted fill with a cracked sprinkler main running straight through it. We also provide Unilock repair in Midway City with the same thorough approach. We rerouted the irrigation, excavated to a proper aggregate base with geotextile, re-compacted in lifts, and re-laid the pavers with fresh edge restraint and joint sand. It’s stayed flat and tight through two rainy seasons since.
Unilock Models & Products We Service in Fountain Valley
We install and repair the full range, but the Unilock products we see most in Fountain Valley are Brussels Block, Cambridge Pavingstones with ArmorTec, Beacon Hill Flagstone, and the Pisa2 retaining wall system. For visible repairs we use Unilock’s own matching units and edge restraint so the color and course lines line up. Base aggregate, geotextile, and joint sand are commodity materials, and we spec those on their own merit, not a brand badge. Localized settlement or a failed joint is a repair. Widespread rocking, pumping, or a base that never compacted right is a re-lay, and patching over that just moves the problem to another corner of the yard.
See the difference
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AfterUnilock Service Pricing in Fountain Valley
What drives the final number on a Fountain Valley Unilock job is what’s under the surface: base depth, soil correction, irrigation rerouting, and access. Here’s where the common scopes land:
| Project Type | Typical Price Range |
|---|---|
| Paver Driveway Installation | $7,000 – $18,000 |
| Paver Patio Installation | $3,500 – $11,000 |
| Driveway Replacement | $5,000 – $14,000 |
| Concrete Driveway Installation | $4,500 – $12,000 |
A free estimate from us includes probing, a base assessment, and a written line-item quote. Call (877) 688-9930 and we’ll come out, check the lot, and give you a number you can plan around.
Serving Fountain Valley, CA — Our Local Coverage Area
We’re based in the Fountain Valley area and know this community well, and we also offer Unilock service in Westminster. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Unilock Construction in Fountain Valley
Yes, when the base is done right. A paver driveway on a properly geotextiled and compacted aggregate base flexes with Fountain Valley’s clay-heavy soil instead of cracking the way a slab does, and individual units can be lifted and re-laid if something shifts. The catch is that many original tract lots have never had a proper base installed. Call (877) 688-9930 for a free assessment of your soil and existing base before you commit either way.
No. We’re an independent builder that installs Unilock pavers and walls as one of several hardscape lines we offer. We are not authorized, sponsored, or endorsed by Unilock, and we’ll tell you when a different hardscape product fits your Fountain Valley yard better. Our advice on base prep, drainage, and joint sand comes from years of tear-outs and re-lays in Orange County soil, not from a dealer agreement.
For visible repairs we use Unilock’s own matching units and edge restraint so courses and color runs line up. For what’s under the paver, base aggregate, geotextile, and joint sand, we spec commodity materials on their own merit. A patched repair that shows a color mismatch isn’t a repair; it’s a reminder you chose wrong. We don’t do that.
A straightforward patio repair over a sound base can be done in a day or two. A full driveway re-lay with base correction, irrigation rerouting, and re-compaction typically runs one to two weeks depending on access and weather. Fountain Valley’s marine layer and occasional winter rains mean we schedule exterior work around moisture windows, so the joint sand and base set correctly the first time.
We work with Brussels Block, Cambridge Pavingstones with ArmorTec, Beacon Hill Flagstone, and the Pisa2 retaining wall system, plus other Unilock paver and wall lines. If you have an existing Unilock installation in Fountain Valley and you’re not sure what product it is, call (877) 688-9930 and we’ll identify it on site.
Service Areas Near Fountain Valley
We serve Fountain Valley and the surrounding communities, including Corona, La Verne, Norco, Montclair, and Claremont. If you’re in one of those areas, we also offer Unilock service in La Palma and Unilock service in Huntington Beach. You can also check our Fountain Valley service area page for full coverage details.
Book Your Unilock Service in Fountain Valley Today
If your paver driveway or patio is heaving, washing out, or just looking tired, call (877) 688-9930 today. We’ll schedule a free estimate, probe the base, and tell you honestly whether you need a repair or a re-lay. Start from square one, build it right.
Written by Brent Calloway, Owner & our General Contractor in Fountain Valley at Square One Builders, serving Fountain Valley and Orange County since the early 1990s.