United Marble & Granite Inc.
Quartz and natural stone countertops cut and installed from a Martin Avenue showroom in Santa Clara.
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Slabs of quartz and natural stone are the stock in trade at United Marble & Granite Inc., a countertop fabricator and installer with a showroom at 2163 Martin Avenue in Santa Clara. The company's website puts its founding in 1998, which matches the year in the chamber's import, and gives the same Martin Avenue address. Manny De Oliveira is listed in the directory record as president.
From slab to installed counter
According to its own site, the firm cuts, finishes and installs countertops, handling material sourcing and the choice of edge profile as part of the job. The surfaces it names include natural stone alongside engineered quartz from Caesarstone, Silestone, Cambria, LG and Corian Quartz, plus Dekton. Porcelain and stainless steel sinks are offered with the tops. Beyond counters, the company also supplies tile, vinyl and ceramic or porcelain flooring, so a kitchen or bath can be planned with one supplier.
Planning a countertop job
The showroom works by appointment, and the website takes bookings online, so set a time before you drive over. Bring cabinet measurements or a rough drawing, photos of the room, and the sink and faucet models if you have already chosen them. Ask whether the quote covers templating, seams, edge work, cut-outs, removal of the old tops and delivery, and how long fabrication takes once the template is made. For any contractor in California, look up the licence number yourself at cslb.ca.gov and ask for proof of insurance before a deposit changes hands.
A note on phones: the company's website shows 408-234-6405, while the directory record carries 408-347-3300, which still appears on several listings. Confirm the current number and address when you book.
Where the jobs are
Martin Avenue sits in the middle of Santa Clara County, so installs run readily to San Jose, Sunnyvale, Cupertino, Campbell, Milpitas, Mountain View and Los Gatos as well as Santa Clara itself.
Reach United Marble & Granite at 408-234-6405 (website) or 408-347-3300 (directory), by email at info@unitedmarbleusa.com, or through the booking page at unitedmarbleusa.com.
Servicios
VerificadoCutting and finishing stone or quartz slabs to the measured layout of a kitchen or bath, then setting the finished tops on site, as described on the company's website.
A choice of edge treatments for the finished counter, from simple eased edges to more shaped profiles, selected with the customer as part of the fabrication order.
Help choosing and obtaining the slab, with natural stone and engineered quartz lines named on the site including Caesarstone, Silestone, Cambria, LG, Corian Quartz and Dekton.
Porcelain and stainless steel sinks supplied with the countertop so the cut-out and mounting can be planned around the exact bowl before fabrication begins.
Tile, vinyl and ceramic or porcelain flooring offered alongside countertops, useful when a kitchen or bathroom remodel needs floors and tops chosen together.
Visits to the Santa Clara showroom on Martin Avenue by appointment, bookable online through the company's website, to compare materials and discuss a project.
Detalles
Ubicación y zona de servicio
Santa Clara, CA 95050-2701
Preguntas frecuentes
Típico de este tipo de negocioHow long does a countertop job usually take?
Typically a template is made once cabinets are installed, fabrication follows over one to three weeks depending on the material and shop schedule, and installation itself usually takes a day. Ask the fabricator for its current lead time when you get the quote.
Is quartz or natural stone better for a kitchen?
Engineered quartz is non-porous and needs no sealing; granite and other natural stone offer one-of-a-kind patterns and handle heat well but may need periodic sealing. Seeing full slabs in person is the surest way to decide.
What should a countertop quote include?
Material, templating, fabrication, edge profile, sink and cooktop cut-outs, seams, installation, removal of old tops and delivery. Ask which of these are included and which are billed separately so quotes from different shops can be compared fairly.
Do I need a permit for new countertops?
Replacing countertops alone usually needs no building permit, but moving plumbing, gas or electrical lines as part of a remodel often does. Ask who is responsible for pulling any permit before the work is scheduled.
Antes de contratar
- Look up the contractor's licence number at cslb.ca.gov and confirm it is current
- Ask for proof of liability insurance and workers' compensation coverage
- Get a written quote listing templating, edges, cut-outs, removal and delivery
- See your actual slab before fabrication and agree on where seams will fall
- Keep the deposit within California's limit for home improvement contracts and follow a written payment schedule
- Confirm the current phone number and book a showroom appointment before visiting
Resumen en español
United Marble & Granite Inc. fabrica e instala encimeras de cuarzo y piedra natural desde su sala de exhibición en Martin Avenue, en Santa Clara, y según su sitio web opera desde 1998. Trabaja con marcas como Caesarstone, Silestone, Cambria y Dekton, y también ofrece fregaderos y pisos de cerámica, porcelana y vinilo. La sala atiende solo con cita previa. Antes de contratar, verifique la licencia en cslb.ca.gov y pida un presupuesto por escrito. El sitio web muestra el teléfono 408-234-6405 y el directorio el 408-347-3300; confirme cuál está vigente.
Los datos marcados como verificados se comprobaron el 29 de septiembre de 2026 con unitedmarbleusa.com. Los demás datos vienen de registros comerciales públicos o describen lo típico de este tipo de negocio, según se indica. El negocio aún no los ha confirmado.
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