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

Countertop Fabrication and Installation

Looking for new countertops? Cosmos Marble and Granite is a leading countertop installer and fabrication company in the Greater Philadelphia area. Voted Best of Houzz and Angie’s List Super Service Award winner, Cosmos works directly with homeowners, interior designers, builders, remodelers and more. Book an appointment today.

Stone slabs in the Cosmos Marble and Granite warehouse

Quartz, Quartzite, Granite, Porcelain and Marble Installation

Our Countertop Installation Process

Stone slabs inside the Cosmos warehouse
  1. 01
    Stone slabs inside the Cosmos warehouse

    Material Selection & Design

    Compare natural stone, quartz, and porcelain in the showroom. We review color, pattern, maintenance, edge options, and how the slab should be laid out for your space.

  2. 02

    Measure & Template

    We check the cabinets, walls, appliances, sinks, cooktops, and overhangs, then create a digital template for the countertop and its required openings.

  3. 03

    Stone Fabrication

    The fabrication team cuts each piece to the template and creates the sink, cooktop, faucet, and other openings included in the project.

  4. 04

    Finishing & Quality Control

    We shape and polish the selected edge, prepare the seams, and check the dimensions, cutouts, corners, and finished surfaces before installation.

  5. 05
    A kitchen before its existing countertops are removed

    Existing Countertop Removal

    When removal is included, we take out the existing countertops and protect the surrounding cabinets, floors, walls, and appliances. Plumbing, electrical work, appliance removal, and cabinet repairs must be completed before installation when required.

  6. 06

    Installation & Completion

    The installers position, level, secure, and seam the countertop pieces. Sinks and slab or tile backsplash are installed when they are included in the project scope.

Countertops for Kitchens, Baths, Bars, and More

Every countertop is templated for its actual space. Cosmos reviews the planned openings, edges, seams, and support before the approved material is fabricated.

Browse the Project Gallery

Kitchen countertops and islands

Cosmos templates perimeter counters, islands, sink and cooktop openings, overhangs, and other details needed for the approved kitchen plan.

Bathroom vanities

A custom vanity top can be fabricated for a primary bath, guest bath, or powder room, including the sink opening and edge selected for the project.

Bars and other fitted surfaces

Home bars and other interior work surfaces follow the same measured process, with the material, openings, seams, and installation scope confirmed before fabrication.

Our 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.

Frequently Asked Questions

What is included in a Cosmos countertop project?

Cosmos can help with material selection, measuring and templating, in-house fabrication, finishing, delivery, and installation. Existing-countertop removal and other project details are included only when they appear in the approved quote.

How long does it take from template to installation?

Cosmos generally plans about 10 days from template to installation. That is not a guaranteed deadline. Material availability, project complexity, site readiness, and the final scope can change the schedule.

Does Cosmos remove existing countertops?

Yes, when removal is included in the project scope. The quote and pre-installation instructions identify what Cosmos will remove and what plumbing, electrical, appliance, or cabinet work must be completed separately.

What countertop materials does Cosmos install?

Cosmos fabricates and installs Quartz, Quartzite, Granite, Porcelain, and Marble. Visit the Huntingdon Valley showroom to compare samples and discuss the right surface for the room and the way it will be used.

Can Cosmos work with my designer, builder, or remodeler?

Yes. Cosmos works directly with homeowners and also coordinates countertop projects with interior designers, builders, remodelers, and other trade professionals.

Does Cosmos offer an installation warranty?

Cosmos provides a one-year installation warranty covering seams and sink mounting. Normal wear and tear and material-care issues are not included in that installation coverage.

What areas does Cosmos serve?

Cosmos installs countertops throughout the Greater Philadelphia area and its surrounding PA and NJ service area. Contact the showroom to confirm service for your project address.

What Our Customers Say

4.988 Google reviews
Alexandra Hartmann2 reviews · 4 photosG
★★★★★10 months ago

“We recently had new Super White Dolomite countertops installed by Cosmos Marble & Granite, and the whole experience was fantastic!”

AndrewLocal Guide · 28 reviews · 13 photosG
★★★★★2 months ago

“Excellent company to work with! They did an amazing job and our kitchen counters are beautiful.”

Nicole Bellano7 reviews · 8 photosG
★★★★★2 years ago

“Absolutely love Cosmos! My countertops look beautiful!”

Emily Marks5 reviews · 5 photosG
★★★★★a year ago

“Noula and Stacy were both very responsive to questions and easy to work with. The finished product is beautiful!”

Dan ColemanLocal Guide · 69 reviews · 33 photosG
★★★★★2 years ago

“The whole process, from picking the stone, through measuring and installation, was incredibly professional.”

Adam SLocal Guide · 22 reviews · 1 photoG
★★★★★8 months ago

“They were competitively priced, professional, on time, and did excellent work on both jobs. I wouldn’t hesitate to use them again.”

Chris YoungLocal Guide · 24 reviews · 8 photosG
★★★★★4 years ago

“Everyone was professional. They helped guide us from picking out the colors, textures and the backsplash patterns.”

Gifty CodjoeLocal Guide · 16 reviews · 3 photosG
★★★★★6 years ago

“They care for their customers and make sure they provide them with best customer service. They are genuine, polite and very considerate.”

Kerri TURNER1 reviewG
★★★★★a year ago

“From initial meeting to installation, every step was handled with excellent communication and attention to detail. The finished product is stunning!”

Daniel FisherLocal Guide · 11 reviewsG
★★★★★a year ago

“Stacy and the Cosmos team are great. It’s a family run business where they care about their customers.”

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