Family-owned and operated for over 30 years

4.9 stars on GoogleBest of Houzz
Angie’s List Super Service AwardAngie’s List
Super Service Award

Bathroom Countertop Fabrication and Installation

Looking for new bathroom countertops? Cosmos Marble & Granite is a leading bathroom countertop installer and fabrication company serving Greater Philadelphia. Cosmos works directly with homeowners, interior designers, builders, remodelers, and other trade professionals.

Cosmos also handles the related work when it is included in the approved scope: existing-top removal, cabinets, sink cutouts and mounting, plumbing disconnect and reconnect, shower walls, and tub surrounds. The quote identifies exactly what Cosmos will provide.

Leathered granite vanity top with a hammered brass basin and gold-tone faucet

Choose a bathroom countertop material

  • Quartz: Consistent patterns, broad color choices, and no routine sealing.
  • Quartzite: Natural movement with slab-specific care and sealing requirements.
  • Granite: Natural pattern, durable daily use, and periodic sealing.
  • Marble: Natural veining with the expectation that acids can etch the surface.
  • Porcelain: A dense surface that can continue onto shower walls or tub surrounds.

Smaller vanity tops may also be a good fit for a countertop remnant. The available piece still has to meet the finished dimensions, sink opening, backsplash, and fabrication requirements.

Plan the vanity top

The finished size, sink layout, faucet spacing, backsplash, edge, cabinets, plumbing, and any shower or tub pieces are confirmed before fabrication begins.

Review the Countertop Installation Process

Custom sizes

Cosmos templates the actual cabinet or vanity rather than relying on a nominal size. This allows the finished top, overhang, wall fit, and backsplash to match the installed space.

Single and double sinks

Single-sink, double-sink, undermount, and other approved layouts require accurate opening and faucet placement. Cosmos handles the cutouts and sink mounting included in the quote.

Backsplashes and edges

The backsplash height, exposed ends, wall conditions, and edge profile are confirmed before fabrication. These details matter on both small powder-room tops and long primary-bath vanities.

Cabinets, plumbing, showers, and tubs

Cosmos can include cabinet work, plumbing disconnect and reconnect, shower walls, and tub surrounds. Those services are planned as part of the bathroom scope rather than assumed from the countertop alone.

Bathroom countertop projects

Why Work With Cosmos

Cosmos is family-owned and operated with more than 30 years in the countertop business. Material selection begins at the Huntingdon Valley showroom, and each approved project moves through the Cosmos fabrication and installation process.

Cosmos works throughout Greater Philadelphia with homeowners, interior designers, builders, remodelers, and other trade professionals.

Cosmos has a 4.9-star Google rating and has been recognized with Best of Houzz and the Angie’s List Super Service Award. Recent installed work and customer reviews appear below.

Bathroom countertop FAQs

What material works best for a bathroom countertop?

Quartz is often chosen for simple care and consistent color. Granite and Quartzite provide natural movement. Marble has distinctive veining but can etch. Porcelain can work for countertops and coordinated wall surfaces. The right choice depends on the look, care expectations, and full bathroom scope.

Can Cosmos make a countertop for a custom vanity size?

Yes. Cosmos templates the installed cabinet or vanity and fabricates the countertop to the approved dimensions, sink layout, backsplash, edge, and overhang.

Can I use a remnant for a bathroom vanity top?

Yes, when an available remnant is large enough for the finished dimensions and required cutouts. Cosmos confirms the fit before the piece is quoted and fabricated.

Does Cosmos cut and mount bathroom sinks?

Yes. Cosmos handles sink cutouts and mounting when they are included in the approved scope. Faucet holes and plumbing work are also confirmed before fabrication and installation.

Does Cosmos handle cabinets, plumbing, shower walls, and tub surrounds?

Yes. Cosmos can include cabinet work, plumbing disconnect and reconnect, shower walls, and tub surrounds. The quote lists the exact services and materials for the bathroom project.

How long does fabrication and installation take?

Cosmos generally plans about 10 days from template to installation. The schedule can change based on material availability, fabrication details, cabinet readiness, plumbing, and the overall bathroom scope.

How do I care for a bathroom countertop?

Use a cleaner approved for the selected material and wipe up cosmetics, soaps, and spills. Natural Granite, Quartzite, and Marble may require sealing. Marble also needs care around acidic products that can etch the surface.

What Our Customers Say

4.9Google rating
★★★★★

Absolutely love Cosmos! My countertops look beautiful!

Nicole Bellano5-star Google review
★★★★★

We had a wonderful experience with Noula.

Dan Coleman5-star Google review
★★★★★

Professional, on time, and did excellent work.

Adam S5-star Google review