Cathedral Stone Products
Cathedral Stone Products is a Hanover, Maryland-based manufacturer and direct-to-professional seller of the JAHN Masonry Restoration Systems — substrate-compatible mortars, cleaners, coatings, and repellents — serving architects, engineers, and certified contractors in historic masonry preservation.
- Company typePrivate
- Founded1982
- HeadquartersHanover, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Cathedral Stone Products does
Cathedral Stone Products, Inc. is a Hanover, Maryland-based specialty manufacturer and direct-to-professional seller of the JAHN Masonry Restoration Systems, founded in 1982 by stonecutter Dennis Rude. The company produces and distributes a vertically integrated product portfolio of substrate-compatible, mineral-based cementitious mortars and grouts (M31-M160 series tailored to limestone, sandstone, brownstone, brick, terra cotta, marble, granite, concrete, and bluestone substrates), biodegradable cleaners and paint strippers, potassium silicate coatings and water repellents (R-97, Guardian), liquid and powder pigments, custom color-matching services, and professional restoration tools. Its core technical differentiator is JAHN's chemistry — single-component mortars without latex or acrylic bonding agents that match substrate elasticity, porosity, and tensile/compressive strength to deliver 50-year repair life versus the 3-5 year failure cycle of polymer-based competitor products. Cathedral Stone holds sole exclusive worldwide manufacturing rights for the JAHN systems.
The company operates a B2B go-to-market targeting architects, engineers, preservation specialists, and masonry contractors through a Find a Rep/Dealer network, direct e-commerce store, phone-based inside sales, and corporate headquarters. Jahn Certification workshops (3-day intensive plus 1-day hands-on sessions providing AIA/CEU and HSW credits) are a gating mechanism — certified installers are required to purchase premium mortars — creating a self-reinforcing talent and specification moat. Revenue derives from one-time product sales, tiered extended warranty programs (5-year at $2,000, 10-year at $4,000 for Jahn Mortars and R-97, plus a free 20-year coating warranty), professional training and certification fees, custom color-matching services ($256), and tool sales. The customer base is highly distributed across government, educational, commercial real estate, and transportation infrastructure segments, anchored by iconic reference projects including the White House, U.S. Capitol, Washington Monument, Empire State Building, Smithsonian, Harvard, Yale, Statue of Liberty, and the Pentagon. The business remains founder-owned and bootstrapped with no external funding.
Cathedral Stone Products firmographics
Firmographics- Name
- Cathedral Stone Products
- Legal name
- Cathedral Stone Products, Inc.
- Website
- https://cathedralstone.com
- Company type
- Private
- Founded year
- 1982
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Cathedral Stone Products is a Hanover, Maryland-based manufacturer and direct-to-professional seller of the JAHN Masonry Restoration Systems — substrate-compatible mortars, cleaners, coatings, and repellents — serving architects, engineers, and certified contractors in historic masonry preservation.
- Ownership category
- akta.pro rank
Cathedral Stone Products industry classification
Industry- Product category
- Masonry Restoration & Repair Materials
- NAICS
- Masonry Contractors (238140)
- SIC
- Concrete, Gypsum & Plaster Products (3270)
- akta.pro primary industry
- Mortar, Grout & Masonry Cements (IMADABAL)
- akta.pro secondary industries
- Masonry Repointing & Mortar Joint Repair (HSAGALAH), Concrete/Brick/Stone Sealing (Masonry Sealants) (HSAGADAH)
Keywords
Where Cathedral Stone Products is headquartered
LocationHeadquarters
- HQ city
- Hanover
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Cathedral Stone Products business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Jahn Mortars & Grouts Sales: Sale of specialized mineral-based repair mortars for various masonry substrates (limestone, sandstone, brownstone, terra cotta, brick, marble, granite, concrete). Includes injection grouts, casting mortars, pointing mortars, and anchor setting mortars.
- Masonry Cleaners, Strippers & Removers: Sale of biodegradable cleaning products for biological stains, oxidation, graffiti, rust, efflorescence, and paint removal. Includes Bio-Cleaner, Latex-Based Cleaner, Masonry Cleaner, and specialized removers.
- Coatings & Repellents: Sale of Potassium Silicate Coatings, Liquid Silicate, water repellents (R-97, Guardian), liquid/powder pigments, stain kits, and terra cotta glaze for masonry protection and coloring.
- Restoration Tools: Sale of specialized tools for masonry restoration including joint router kits, chisels, trowels, air hammers, rakes, sculpting tools, sponges, and spray bottles.
- Jahn Certification Training: Revenue from 3-day Jahn Certification workshops and 1-day Hands-On workshops. Certification required for purchasing certain mortar products.
- Extended Warranty Programs: 5-year warranties at $2,000 and 10-year warranties at $4,000 for Jahn Mortars and R-97 Water Repellent. 20-year free material warranty for Potassium Silicate Coating.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | 5-Year Warranty Program |
| Other | Multi-year contract | 10-Year Warranty Program |
| Other | Multi-year contract | Potassium Silicate Coating - Free 20-Year Warranty |
| Unit Pricing | Pay-as-you-go | Mortar Sample Boxes |
| Unit Pricing | Pay-as-you-go | Stain Kits |
| Other | Pay-as-you-go | Laboratory Custom Color Matching |
| Other | Pay-as-you-go | Product Return Policy |
Go-to-market motion2 records
Distribution channels4 records
Marketing channels5 records
Cathedral Stone Products product offering
Product offeringCore offering
Cathedral Stone Products manufactures and sells the JAHN Masonry Restoration Systems — an integrated line of substrate-compatible mineral-based mortars and grouts, biodegradable masonry cleaners and paint strippers, potassium silicate coatings and water repellents, professional restoration tools, and tinting/color-matching accessories for masonry restoration, repair, and maintenance. The company is the sole exclusive worldwide manufacturer of JAHN Masonry Restoration Systems, sells direct to professional contractors, architects, and restoration specialists, and requires Jahn Certification for purchase of select mortars.
Product overview
Cathedral Stone Products offers a comprehensive, integrated JAHN Masonry Restoration Systems portfolio designed for professional masonry restoration, repair, and maintenance. The product ecosystem consists of five interconnected categories: Jahn Mortars & Grouts (including M31-M160 series repair mortars for specific substrates like limestone, sandstone, brownstone, brick, terra cotta, marble, granite, and bluestone, plus injection grouts, back fill, and natural adhesive), Cleaners/Strippers/Removers (biodegradable formulations for biological stains, oxidation, graffiti, paint removal, rust, efflorescence, and general masonry cleaning), Coatings & Repellents (potassium silicate mineral paints with molecular bonding, water repellents including Guardian and R-97, liquid pigments, stain kits, and specialty coatings like Terra Cotta Glaze and Epochrome), Restoration Tools (professional-grade equipment including joint routers, carbide rakes, chisels, trowels, air hammers, sculpting tools, and specialty sponges), and Mortar Color Products (powder and liquid pigments, color sample kits, and mortar sample boxes for color matching). All products are scientifically engineered for compatibility, with Jahn mortars designed to match the physical properties of specific masonry substrates to prevent failure from salt expansion or freeze-thaw cycles.
Differentiator
Problem solved
Functional benefit
Brands
- JAHN Masonry Restoration Systems: A full spectrum of integrated and compatible masonry restoration products including mortars, grouts, cleaners, coatings, and water repellents, developed from the original JAHN Restoration Mortars originally developed in Holland.
Products and services
- Jahn Mortars & Grouts Integrated line of laboratory-engineered mineral-based restoration mortars and grouts designed to match the physical properties of specific masonry substrates (brick, terra cotta, limestone, sandstone, brownstone, concrete, stucco, granite, marble, and bluestone) for professional masonry restoration, repair, and pointing.
- M70 Brownstone Repair Mortar
Quantifiable outcome
- Masonry restoration projects engineered to last 50+ years vs. 3-5 years for polymer-based mortars
- +3 more outcomes
Companies that use Cathedral Stone Products
Customer profileNamed customers15 records
Segments5 records
Ideal customer profiles4 records
Cathedral Stone Products technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Cathedral Stone Products partnerships and signals
Strategic signalPartnerships
Six partnerships are on record, tiered minor.
- John Milner AssociatesminorPartnered on Ronald Reagan Washington National Airport project where their Principal Architectural Conservator Alphonso Narvaez and Sr. Architectural Conservator Lane Burritt worked with Cathedral Stone on concrete restoration training and inspections.
- Hoffman ArchitectsminorWorked with Cathedral Stone on Ross Hall at George Washington University project, providing on-site training and supervision of JAHN Restoration Mortar System installers.
- National Park ServiceminorCathedral Stone installed JAHN Restoration Mortar Repairs to Ellis Island Indiana Limestone facade with National Park Service oversight.
- Lev Zetlin & Associates/Thornton TomasettiminorEngineering partners for Empire State Building limestone facade repairs using JAHN Restoration Mortars from swing stages.
- A. Best Co.minorMasonry contractor partner for Empire State Building facade repairs working with Cathedral Stone products from swing stages.
- C.A. Lindman CompaniesminorMasonry contractor partner for Ronald Reagan Washington National Airport concrete restoration project.
Scale indicators4 records
Recent moves5 records
Expansion highlights5 records
Cathedral Stone Products competitors and assessment
Company assessmentDirect peers
- PROSOCO: PROSOCO manufactures specialty masonry cleaners, sealers, and consolidation products used in commercial restoration. Directly comparable in substrate-targeted chemistry and architecture/specifier GTM, although they have a broader construction-chemicals portfolio than Cathedral Stone's masonry-restoration focus.
- Conproco: Conproco produces a full line of concrete and masonry repair mortars, coatings, and grouts engineered for substrate compatibility. Closest direct competitor in the integrated masonry-restoration materials category with specialty mortars sold to contractors.
- Edison Coatings: Edison Coatings manufactures specialty restoration mortars, grouts, and coatings compatible with historic masonry substrates. Similar niche positioning in heritage/preservation repair chemistry and a comparable small specialty-manufacturer profile.
- Limeworks: Limeworks.us produces natural hydraulic lime mortars and plasters for historic masonry restoration. Comparable as a small specialty manufacturer targeting preservation architects and masons with traditional/compatible-material chemistry.
- US Heritage Group: US Heritage Group offers historically specified mortar products including pre-blended lime-based mortars for preservation projects. Directly competes in the architectural-grade restoration mortar specification market.
Broad incumbents
- Spec Mix: Spec Mix is a major pre-blended mortar and grout manufacturer serving masonry contractors through silo-based distribution. Adjacent competitor in the contractor-grade mortar category but focuses on new-construction applications rather than substrate-matched restoration.
- Euclid Chemical: Euclid Chemical is a diversified construction-chemicals manufacturer offering concrete repair mortars, grouts, and sealers. Overlaps with Cathedral Stone in masonry repair chemistry but operates across broader infrastructure and commercial segments.
- Quikrete Companies: Quikrete is the dominant packaged masonry and concrete products manufacturer in North America with a broad retail/contractor portfolio including mortars and repair products. Overlaps in masonry repair materials but lacks Cathedral Stone's preservation-focused substrate-specific positioning.
- BASF Master Builders Solutions: BASF's Master Builders Solutions division supplies concrete repair, grouting, and protection products for commercial construction. Large-incumbent alternative competing for institutional masonry restoration specifications through systems integrators.
Emerging players
- Bonstone Materials: Bonstone produces masonry restoration mortars and anchoring adhesives with stone-matching formulations targeting heritage preservation. Smaller and less commercially developed than Cathedral Stone but competes for similar specialty restorer customers.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
Cathedral Stone Products social profiles
Digital presenceCathedral Stone Products financial estimates
Financial estimateRevenue estimate
Valuation estimate
Cathedral Stone Products leadership team
Management profileNumber of profiles
Profiles1 record
Cathedral Stone Products funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Cathedral Stone Products M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Cathedral Stone Products
What does Cathedral Stone Products do?
Cathedral Stone Products manufactures and sells the JAHN Masonry Restoration Systems — an integrated line of substrate-compatible mineral-based mortars and grouts, biodegradable masonry cleaners and paint strippers, potassium silicate coatings and water repellents, professional restoration tools, and tinting/color-matching accessories for masonry restoration, repair, and maintenance. The company is the sole exclusive worldwide manufacturer of JAHN Masonry Restoration Systems, sells direct to professional contractors, architects, and restoration specialists, and requires Jahn Certification for purchase of select mortars.
Is Cathedral Stone Products a public or private company?
Cathedral Stone Products is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Cathedral Stone Products founded?
Cathedral Stone Products was founded in 1982. It employs 11 to 50 people.
Where is Cathedral Stone Products based?
Cathedral Stone Products is headquartered in Hanover, United States, in the North America region.
How does Cathedral Stone Products make money?
Six revenue lines are on record. Jahn Mortars & Grouts Sales are the primary driver. The others are masonry Cleaners, Strippers & Removers, coatings & Repellents, restoration Tools, jahn Certification Training and extended Warranty Programs.
Who are Cathedral Stone Products's main competitors?
Direct peers on record are PROSOCO, Conproco, Edison Coatings, Limeworks and US Heritage Group. Broad incumbents are Spec Mix, Euclid Chemical, Quikrete Companies and BASF Master Builders Solutions. Bonstone Materials is listed as an emerging player.
Does Cathedral Stone Products have an API?
No public API is recorded for Cathedral Stone Products.
What industry is Cathedral Stone Products in?
Cathedral Stone Products's product category is Masonry Restoration & Repair Materials. Its primary akta.pro industry code is IMADABAL, Mortar, Grout & Masonry Cements, with a secondary code of HSAGALAH, Masonry Repointing & Mortar Joint Repair. Its NAICS code is 238140 and its SIC code is 3270.