Business Details
39 Years
experience
Expert Natural Stone & Tile Fabrication in Watertown, MA
Founded in 1987 by Tom Kilfoyle, United Marble is New England's premier natural stone company and a second-generation family-owned business. We specialize in providing luxury stone and tile solutions for high-end residential projects, serving as a trusted partner to leading architects, interior designers, and custom home builders. Our commitment to exceptional craftsmanship, innovative design, and sustainable practices has established us as an industry leader. With a state-of-the-art fabrication facility in Watertown, MA, we offer a single-source experience through global material sourcing, expert design, and precise installation. Our core values of Unity, Integrity, Outperformance, and Impact guide every project, ensuring technical excellence while maintaining environmental responsibility.Over three decades of experience enable us to deliver museum-quality results that combine artistic vision with practical functionality. Our team of certified professionals utilizes advanced CNC machinery to achieve complex designs while maintaining cost-effectiveness in competitive markets. Client relationships are built on transparent communication, personalized service, and a dedication to exceeding expectations. We maintain industry leadership through continuous innovation in material technology and fabrication techniques while preserving traditional craftsmanship. Our comprehensive approach includes seasonal maintenance programs and restoration services to preserve the longevity of stone installations.
Services
Natural Stone Selection
Stone Design
Stone Fabrication
Tile Installation
Stone Maintenance
Porcelain Fabrication
Fireplace Mantels
Shop Drawings
Seasonal Maintenance
Slab Finishing
Details
- Year established: 1987
Highlights and features
- 35+ years of specialized expertise in luxury stone fabrication
- Award-winning team with second-generation family leadership
- Global network for sourcing premium natural stone materials
- In-house design team with architectural and engineering expertise
- Sustainable practices combining tradition with technological innovation
What people say
Exceptional craftsmanship
Outstanding service
Reliable partner
Stunning results
Professional team
Services
Natural Stone Selection
We source premium natural stone materials globally, maintaining direct relationships with quarries to ensure quality and authenticity. Our curated inventory includes rare marbles, granites, and quartzites conveniently located at our Watertown facility. Clients receive expert guidance to select materials that balance aesthetic vision with practical performance requirements.
Stone Fabrication
Our state-of-the-art CNC machinery enables precision fabrication of complex stone components while maintaining traditional craftsmanship standards. We produce countertops, fireplace surrounds, and architectural elements with exacting tolerances. Quality control processes ensure perfect fitment and finish for both residential and commercial applications.
Tile Installation
Our certified installers execute technically complex tile projects using advanced substrate preparation and waterproofing techniques. We specialize in radiant floor heating systems and intricate mosaic patterns while maintaining industry safety standards. Each installation receives final quality inspection before client handover.
Stone Maintenance
We offer customized maintenance plans to preserve stone surfaces through professional cleaning, sealing, and restoration services. Our technicians diagnose material-specific needs to address etching, staining, or wear patterns. Preventative care programs extend the longevity of both residential and commercial installations.
Porcelain Fabrication
We work with leading brands like Laminam and Dekton to fabricate durable ultracompact surfaces for modern applications. Our team provides technical expertise on material properties and optimal installation methods. Custom fabrication ensures seamless integration with traditional stone elements in luxury projects.
People
Tom Kilfoyle
Founder
Industry pioneer with 35+ years of experience in natural stone craftsmanship. Established United Marble in 1987, building a legacy of quality and innovation in luxury surface solutions.
John Kilfoyle
President
Second-generation leader driving technical innovation while maintaining family values. Oversees operations and client relationships with 25+ years of hands-on experience in stone fabrication.
John Ardini
Engineering Manager
Technical expert managing fabrication processes and quality control. Brings specialized knowledge of CNC machinery and material engineering to ensure precision in complex projects.
Dillon Lathrop
Account Executive
Client liaison with deep understanding of luxury homebuilding needs. Coordinates project timelines and specifications to ensure seamless execution of custom stone solutions.
Questions
What types of natural stone do you work with?
We source premium marbles, granites, quartzites, and limestones globally, maintaining direct relationships with quarries to ensure material quality and authenticity.
Do you handle both residential and commercial projects?
While specializing in luxury residential work, we also execute high-end commercial projects requiring custom stone solutions and technical expertise.
How do you ensure project quality?
Our quality control combines advanced CNC fabrication with traditional craftsmanship, including multiple inspection stages from material selection through final installation.
What is your design process?
We provide digital slab renderings and detailed shop drawings to visualize projects before fabrication, ensuring alignment between design intent and final execution.
Do you offer maintenance services?
Yes, we provide seasonal maintenance plans and restoration services tailored to specific stone types to preserve surface longevity and appearance.
How are you different from other stone companies?
As a second-generation family business, we combine 35+ years of experience with technical innovation, offering global material access and personalized service for luxury projects.
