Granite Countertops in Ontario, Installed Right
Looking for granite countertops in Ontario? We fabricate granite, quartz, marble and quartzite in our own shop and install with our own crew. Also, every estimate is free and written.
- Free in-home estimate
- Residential & commercial
- Written, itemized quote
- Tell us about your project online or by phone.
- We measure on-site and help you pick your slab.
- You get a written, itemized quote. No pressure.
- Since 2001Family-owned stone shop
- In-house fabricationNo middleman markups
- Riverside CountyServes Ontario
- Free estimateMeasured on-site

Granite countertops in Ontario for homes, offices and hospitality
Ontario mixes classic neighborhoods with brand-new homes. For example, the area around Euclid Avenue has many older houses, while Ontario Ranch keeps adding new ones. Because each home is different, we always measure on-site.
Next, you pick the exact slab you want. Then we template, cut and polish it in our own shop. As a result, granite countertops in Ontario cost less with us than through a store that hires out the work.
- Served from our Riverside County base, which covers the Inland Empire
- You pick the exact slab before we cut
- Old counter removal and haul-away available
- One crew from measure to final seal
Granite countertops across Ontario neighborhoods
In fact, we serve homes and businesses all over Ontario and nearby areas, including the neighborhoods below. Also, all of them get service from our Riverside County base, which covers the Inland Empire.
A local tip
Commercial spaces see heavy daily use. For that reason, we often suggest quartz for restrooms and break rooms, and granite for high-heat areas. We explain the trade-offs during your free estimate.
Checking out any contractor
Before you hire anyone, however, it helps to do a little homework. For example, you can look up California contractors on the California Contractors State License Board website. Also, ask every shop who will cut and install your stone.
Granite, quartz and more for Ontario
Not sure which stone fits? Start here, and then compare them side by side at your free estimate.

Natural, heat-tough and one of a kind.

Non-porous, even color, no sealing.

Classic veining for baths and islands.

Marble looks with granite toughness.
Want the details? Check our granite vs quartz comparison.

Ontario kitchens and baths, old and new
In older Ontario homes, we often replace tile counters and fit stone to cabinets that are slightly out of square. Therefore, careful templating matters. In newer homes, owners usually want to upgrade builder-grade tops to a full slab.
Many families also redo vanities at the same time. For instance, quartz is a popular bathroom pick because it never needs sealing.
Want ideas first? In that case, see our kitchen countertop and bathroom vanity pages.

How much are granite countertops in Ontario?
Most people ask about price first. In short, installed granite with us typically starts around $45 per square foot, while quartz starts around $55. However, bigger islands and special edges cost more.
To get your real number, book a free measure. Then you get a written quote with every line spelled out.
| Material | Typical starting price* |
|---|---|
| Granite | From ~$45 / sq ft installed |
| Quartz | From ~$55 / sq ft installed |
*Standard slabs and layouts. Your written quote is final.

Commercial countertops in Ontario
Ontario is a busy business hub, with offices, hotels and restaurants near the airport and along major corridors. We cut lobby and reception counters, break-room tops and restroom vanities. Also, contractors get firm bids and clear dates.
- Firm, written bids for owners and general contractors
- Templating that fits your construction schedule
- Volume pricing for multi-unit and repeat layouts
Our four-step process in Ontario
The plan is simple, and the dates are real.
- Free measure
We visit, measure and talk through options. It costs nothing.
- Pick your slab
You choose the exact slab for your space, not a tiny sample.
- Shop fabrication
We laser-template and cut the stone in our own shop.
- Clean install
Most kitchens take one day. We seal natural stone at install.
A look at our recent countertop work




Questions about granite countertops in Ontario
How much are granite countertops in Ontario, CA?
Installed granite with us typically starts around $45 per square foot. Quartz typically starts around $55. Even so, the slab, edges and cutouts set your final price, so we send a written quote.
Which base serves Ontario?
Our Riverside County base, which covers the Inland Empire, serves Ontario. As a result, scheduling a free measure is usually easy.
Do you install countertops for hotels and offices in Ontario?
Yes. For example, we cut lobby counters, reception desks, break rooms and restroom vanities. We also coordinate with your general contractor.
Can you replace tile countertops in an older Ontario home?
Yes. First, we remove the tile and haul it away if you want. Then we template and install the new stone.
Do you offer quartz countertops in Ontario?
Yes. Besides granite, we install quartz, marble and quartzite throughout Ontario.
How do I get a free countertop estimate in Ontario?
Simply call (888) 745-3628, chat with us or send the estimate form. Then we schedule a free measure and send a written quote. There is no obligation.
More answers on our countertop FAQ page.
More service areas close to Ontario
Get your Ontario countertop quote
Get a free, written estimate for granite, quartz, marble or quartzite. We measure, help you pick a slab and give you a clear price.
Want to compare first? Read our FAQ, check the pricing guide or browse past projects.