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Countertop Fabrication for Contractors in Riverside, CA

Riverside Custom Countertops stands as Southern California's go-to pros in countertop fabrication for general contractors, home builders and developers, specializing in spec home kitchens, remodel subcontracts, and full fabricate-and-install packages. We take builder work from 1 remodel kitchen to 6 new-build kitchens released at once.

Get a free countertop estimate

Shop Fabrication for Builders and General Contractors

Our crews work active job sites and occupied remodels, phasing each install around the framing, cabinet and plumbing trades so the house keeps moving toward final. Backed by 12 years in business and our 1-year workmanship warranty, we have completed over 1,870 projects, from single kitchen subcontracts to multi-house builder releases, and builder references are available on request.

From the cabinet sign-off and cutout spec sheets to the final punch and care sheets, our team handles the parts of a builder job that decide whether it finishes on schedule. Serving Riverside and neighboring Eastvale, Corona and Temescal Valley, we hold the GC's schedule, work Saturdays where the build calendar requires it, and turn every kitchen over ready for punch and inspection.

Call today with your plan set, house count and cabinet delivery dates, and request a bid.

What you can hold us to

The Shop Behind Every Top

12 yearsCutting and installing stone from our Riverside shop
1,870Kitchens, islands, bars and commercial tops completed
1-year1-year workmanship warranty on seams, fit and sink mounting
35 milesFrom Riverside to Yorba Linda, Villa Park and Chino Hills

What Builders Hand Us and What We Hand Back

A GC sends plans, cabinet layouts and appliance and sink spec sheets, and gets back a per-house bid, a template date for each house and an installed, punched kitchen. We cut and polish everything in our own Riverside shop, so there is no broker between your superintendent and the saw. In Eastvale and Corona, where most of our builder work sits, the person who templates the house is the person you call.

Per-House Fabrication Scope

Builder scope in Riverside County is typically one standard kitchen per house, an estimated 30 to 45 sq ft of 3cm stone with an undermount sink and the eased edge included. Islands, full-height backsplashes and waterfall drops are added per house as options, so the base bid stays clean, and a kitchen island top typically adds an estimated $1,600 to $3,400 to the houses that take it.

Calacatta-look quartz island with a waterfall end dropping to the oak floor, four stools, pendant lights and an open living room beyond

Fabrication Standards on Every Builder Kitchen

Slab thickness
3cm slabs set straight onto the cabinets as our standard; 2cm stone gets a plywood sub-top
Templating
Digital laser template at the site visit, before any slab is cut
Seams
Hairline seams under 1/16 in., color-matched epoxy, kept away from the sink cutout
Edge profiles
Eased edge included; half-bullnose, ogee and mitered drop edges priced per linear foot
Sink mounting
Undermount sinks mechanically mounted with clips and epoxy, not silicone alone
Overhangs
Up to 10 to 12 in. unsupported on 3cm stone; concealed steel supports beyond that
Sealing
Granite and quartzite sealed at install; quartz never needs sealing
Lead time
Typically 1 to 3 weeks from laser template to install day
Crew
2 to 3 installers per kitchen, 3 to 4 for waterfall islands
Payment terms
Deposit no more than 10% or $1,000, whichever is less, then progress payments as the work is done
Quartz price
Engineered quartz typically runs $65 to $145 per sq ft installed, never needs sealing
Granite price
Granite typically runs $55 to $135 per sq ft installed, sealed every 1 to 2 years
Quartzite price
Natural quartzite typically runs $85 to $185 per sq ft installed
Marble price
Marble typically runs $80 to $195 per sq ft installed
Solid surface price
Solid surface typically runs $70 to $130 per sq ft installed
Porcelain slab price
Porcelain and sintered stone typically run $55 to $120 per sq ft installed

Countertop Fabrication Cost for Contractors in Riverside

Kitchen countertop replacement (30 to 45 sq ft)

Est. investment
$2,100 to $4,800 per kitchen
Est. duration
1 to 2 days

Tear-out, laser template, new 3cm tops, undermount sink and eased edge

Kitchen island top

Est. investment
$1,600 to $3,400 per island top
Est. duration
3 to 6 hours

Standard 40 x 80 inch island, overhang support checked

Full-height slab backsplash

Est. investment
$600 to $3,000 per backsplash
Est. duration
1 to 2 days

Slab from countertop to the upper cabinets or hood

Wet bar or home bar top

Est. investment
$750 to $2,400 per bar top
Est. duration
3 to 5 hours

12 to 20 sq ft bar top with a bar sink cutout

Old countertop tear-out and haul-away

Est. investment
$150 to $500 per project
Est. duration
2 to 5 hours

Added to a replacement job; old tops removed and recycled

Investment and duration figures are estimates. Your written quote sets the final price and schedule.

Builder countertop packages in Riverside are typically bid per house, with a standard kitchen estimated at $2,100 to $4,800 and islands and backsplashes added per line. On a Temescal Valley or Chino Hills release, slab grade, the number of cutouts and how many houses release together move the per-house number most.

Builder line itemEst. investmentEst. duration on site
Kitchen countertop replacement (30 to 45 sq ft)Est. $2,100 to $4,800 per kitchenEst. 1 to 2 days
Kitchen island topEst. $1,600 to $3,400 per island topEst. 3 to 6 hours
Full-height slab backsplashEst. $600 to $3,000 per backsplashEst. 1 to 2 days
Waterfall edge dropEst. $800 to $1,800 added per waterfall sideEst. 4 to 8 hours

Builder quartz is the usual spec, typically an estimated $65 to $145 per sq ft installed, and choosing one color for every house in a release keeps slab yield high.

These per-house figures are budgetary estimates for Riverside County and are subject to change. Your written quote, confirmed on bid from the plans and the cabinet layouts, sets the final price and the install schedule, and it depends on the slab spec, the option lines each buyer picks and the release size.

Builder Project: Six Spec Homes in Eastvale

New kitchen with an island in cream quartz with a waterfall side, three woven stools, pendant lights and warm evening sun through the door

Greg, new-build infill lots, Eastvale

Countertop Fabrication for Contractors

Material
builder quartz
Size
6 new-build kitchens
Est. investment
$14,000 to $24,000
Est. duration
6 to 12 days

A local builder's six spec homes, templated as cabinets landed

Investment and duration figures are estimates. Your written quote sets the final price and schedule.

Greg, a local builder, had six spec homes on new-build infill lots in Eastvale and a crew schedule that could not wait on stone. We templated each house the day its cabinets were set, then cut builder quartz in the order his trades finished. The 6 new-build kitchens came in at an estimated $14,000 to $24,000 over an estimated 6 to 12 days of install time across the release, and all six kitchens were installed in the order the builder's crews finished.

How We Fit Your Build Schedule

Template day follows cabinet set, and install follows template by typically 1 to 3 weeks, so the countertop step slots between cabinets and plumbing trim. Your superintendent on a Corona or Woodcrest site gets one date per house, and a crew of 2 to 3 installers sets each kitchen, with 3 to 4 for a heavy island or waterfall.

White quartz counter with an undermount sink and a waterfall end, grey stools, stainless range and white subway tile in a bright kitchen

Cutouts, Spec Sheets and Field Changes

Every sink, cooktop and faucet cutout is cut from the manufacturer's spec sheet, then checked against the laser template, because a wrong cutout on a builder release repeats in every house, whether the release sits in Villa Park or Norco. Field changes after template, such as a moved range or a swapped sink, are re-templated before cutting, never fixed with a grinder in the kitchen.

Why Contractors Choose Riverside Custom Countertops

Contractors choose us because one shop inside a 35-mile radius owns the whole chain, from template to install, and the dates we give are the dates we keep. Our owner checks every seam layout before a slab is cut, and every builder kitchen carries our 1-year workmanship warranty on seams, fit and sink mounting.

Honed black granite bar top with a bar sink, leather stools and a lit back-bar shelf of bottles and glasses

Builder Service Areas Around Riverside

Most of our builder work runs along Interstate 15 and the 91, from new-build infill lots in Eastvale near the Goodman Commerce Center to custom homes in Temescal Valley and Corona. We bid releases anywhere within our 35-mile radius of the Riverside shop, including Norco, Woodcrest, Chino Hills, Yorba Linda and Villa Park. Homeowners can reach the residential side through our Riverside Custom Countertops home page.

Related Commercial Countertop Services

GCs on mixed jobs often pair this with apartment and multifamily countertop packages or office tenant improvement countertops, and the full capability statement sits on our commercial countertop installation page.

Brown, taupe and cream granite island with matching granite backsplash, wood cabinets, stools and a desert mountain view through the window

Contractor Questions About Countertop Fabrication

Do you fabricate only, or fabricate and install?

We fabricate and install as one package on every Riverside County release, from Temescal Valley to Yorba Linda, because our laser template and our install crew make the fit our responsibility.

Can you bid from a plan set before cabinets arrive?

Yes, we bid from plans and cabinet layouts, then confirm every house with a digital laser template once its cabinets are set, the same way Greg's release was handled.

How is builder countertop work priced?

Builder work is priced per house, typically an estimated $2,100 to $4,800 per standard kitchen, and your written quote sets the final price.

How long from template to install?

Most houses are installed typically 1 to 3 weeks after the laser template, in the order the cabinets are set.

Do you use in-house crews or subs?

Our own crews template, cut and install every top, with a lead installer and 2 to 3 installers per kitchen, 3 to 4 for waterfall islands.

What do you need from the plumber?

We need the sink and faucet spec sheets before cutting, because our crew sets undermount sinks mechanically mounted with clips and epoxy, not silicone alone, and the plumber connects the faucet and drain after our install.

What warranty do builder kitchens carry?

Every builder kitchen carries our 1-year workmanship warranty on seams, fit and sink mounting, and quartz adds its maker's warranty.

Request a Bid on Your Next Release in Riverside

Contact us with your plans, house count and cabinet delivery dates, and we will set template dates around your build schedule.

Stone, Edges and Finishes

Start to finish

From Laser Template to Finished Counters

  1. Site visit and laser template

    We check the cabinets for level and take a digital laser template before any slab is cut.

  2. Slab and seam layout

    You pick the slab and approve where every seam and vein will fall.

  3. Shop fabrication

    The stone is cut wet, edged and polished in our Riverside shop, cutouts included.

  4. Install day

    A crew of 2 to 3 installers sets the tops, mounts the sink and walks the job with you.

Free estimate

Ready to Talk About Countertop Fabrication for Contractors?

Call us or send the form, and we will book a site visit and a laser template.

Call to Discuss Scope

Calls only, we do not receive text messages.

Call (951) 441-2673