Gilbert Block

What Gilbert Block does

Gilbert Block, operating under the legal name Del R. Gilbert & Son Block Co., Inc., is a privately held building materials supplier headquartered in Laconia, New Hampshire. Founded in 1948, the company has operated continuously under family ownership for more than 75 years, distributing concrete, masonry, and landscape supplies to contractors, builders, and retail customers across New Hampshire through four physical locations.

The product portfolio spans concrete masonry units, pavers, retaining wall systems, and complementary landscape materials sourced from multiple industry vendors rather than manufactured in-house. The vendor roster — Everloc, World Block, Stone Strong, Techno-Bloc, Cambridge, Pavestone, and Unilock — indicates a multi-brand distribution model focused on hardscape and structural masonry. Gilbert Block functions as a regional distribution and retail outlet carrying competing national brands, with technical specification support provided by long-tenured staff, some with 30+ years of service.

Revenue is generated through direct sales of building materials to professional contractors and walk-in retail customers across four New Hampshire locations. Pricing is transactional and project-based, tied to regional construction activity, residential and commercial project cycles, and competitive positioning within the vendor portfolio. The company has not disclosed revenue figures and operates without any apparent proprietary technology platform, e-commerce channel, or AI/ML integration. The business is essentially a stable, asset-based regional distribution operation sustained by long-tenured employees, family ownership continuity, and multi-vendor product breadth.

Name

Gilbert Block

Legal name

Del R. Gilbert & Son Block Co., Inc.

Website

https://gilbertblock.net

Company type

Private

Founded year

1948

Operating status

Operating

Headcount range

11–50 employees

Short description

Gilbert Block (Del R. Gilbert & Son Block Co., Inc.) is a family-owned New Hampshire building materials distributor founded in 1948, supplying concrete, masonry, and landscape products through four locations to contractors and retail customers.

Ownership category

akta.pro rank

Product category

Building Materials (Concrete, Masonry & Landscape Supplies)

NAICS

Concrete Block and Brick Manufacturing (327331), Other Concrete Product Manufacturing (32739), Nonmetallic Mineral Product Manufacturing (327)

SIC

Concrete Products, Except Block & Brick (3272), Retail-Lumber & Other Building Materials Dealers (5211), Wholesale-Lumber & Other Construction Materials (5030)

akta.pro primary industry

Concrete Masonry Units (CMU) & Segmental Concrete Products (IMADAAAC)

akta.pro secondary industries

Precast Concrete Products (IMADAAAB), Masonry & Hardscapes Retail (Brick, Block, Pavers, Stone) (CRAIAEAF), Concrete/Brick/Stone Sealing (Masonry Sealants) (HSAGADAH)

Keywords

• Concrete masonry supplies
• Precast concrete products
• Landscape building materials
• Retaining wall systems
• Natural stone veneer

Headquarters

HQ city

Hooksett

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Wholesale Product Sales: Gilbert Block generates revenue primarily through wholesale sales of landscape and masonry products to contractors, distributors, and building professionals. Products include concrete block, precast concrete, retaining walls, natural stone, pavers, and related building materials.
2. Retail Product Sales: The company also serves retail consumers directly through its four New Hampshire locations, selling building materials for home improvement and landscaping projects.
3. Delivery Services: Delivery services to businesses, homes, and job sites across New Hampshire, providing additional revenue through logistics and transportation fees.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

Gilbert Block manufactures precast concrete products and distributes a full line of masonry and landscape building materials through four New Hampshire retail/wholesale locations. Its catalog spans concrete block (standard and architectural CMU), retaining walls (Everloc, World Block, Stone Strong), natural and veneer stone, bulk materials (mulch, crushed stone, sand, loam), pavers, drainage products, fireplace/chimney supplies, and masonry coatings and cleaners. The company serves both building-trade professionals (contractors, builders, distributors) via wholesale supply with job-site delivery and retail consumers undertaking home improvement and landscaping projects.

Product overview

Gilbert Block is a wholesale and retail building materials supplier offering a comprehensive portfolio of concrete, masonry, and landscape products. The core product lines include Precast Concrete Products (septic tanks, transformer pads, catch basins, drainage solutions), Retaining Walls (Everloc™, World Block, Stone Strong Systems), Natural and Veneer Stone, Bulk Materials (mulch, crushed stone, sand, loam), Pavers and Landscape Supplies, Landscape Accessories, Fireplace and Chimney Supplies, Masonry Products with Coatings and Cleaners, Drainage Products, and standard Concrete/Architectural CMU. These products are complemented by Delivery Services and Product Consulting Services. The company operates four locations across New Hampshire serving both consumers and the building trades.

Differentiator

Problem solved

Functional benefit

Products and services

• Precast Concrete Products A wide range of precast concrete products manufactured and stocked by Gilbert Block, including septic tanks (1,000-5,000 gallons, H-10 HD and H-20), PSNH transformer pads, NH Electrical COOP electrical vaults, concrete chambers, distribution boxes, retaining walls, baffles, boat ramps, bumperlogs, catch basins, chimney caps, covers, deck posts, dippers, dousing chambers, drain boxes, drop inlets, dry wells, frost posts, grease traps, Jersey barriers, mooring blocks, oil tank pads, pier block, pump chambers, splash blocks, surveyor posts, tank risers, and well tiles. Sold to contractors, builders, and utilities via wholesale and retail channels across New Hampshire.
• Retaining Wall Systems Retaining wall product lines carried by Gilbert Block, including Everloc (lightweight one-square-foot units in Traditional Series and Full Series for commercial and residential landscape applications), World Block Landscape Blocks (simple, functional blocks for quick wall installation), and Stone Strong Systems (the largest precast retaining wall block on the market at 24 square foot face, 3 feet by 8 feet, for highway, railroad, commercial, and waterway applications). Sold to contractors and homeowners.
• Natural and Veneer Stone Stocking supplier of natural stone products including bluestone, granite, fieldstone, flagstone, and cobblestone, sourced from suppliers such as The Stone Yard, Roll Rock, Delgado Stone, and Connecticut Stone. Used for landscape and masonry veneer applications by contractors and homeowners.
• Bulk Materials Wide variety of bulk landscaping and construction materials including dark pine mulch, black mulch, hemlock mulch, crushed stone (3/8", 3/4", 1.5"), crushed bank run, concrete and mortar sand, stone dust, and loam. Available for pickup at any of the four NH locations or for delivery to job sites and homes.
• Pavers and Landscape Supplies Concrete pavers from multiple manufacturers (Techno-Bloc, Cambridge Pavers, Pavestone, Unilock) in a wide variety of shapes and colors, supplied for patios, walkways, and driveways. Sold to contractors, landscapers, and homeowners.
• Landscape Accessories Hardscape and bulk materials accessories including paver restraint, edging, wall and paver lighting, stabilizing sands, sealers, and cleaners from suppliers SEK and Alliance Gator. Sold alongside pavers and retaining walls.
• Fireplace and Chimney Supplies Chimney and fireplace accessories including stainless steel chimney caps, brick products from Redland Brick, Stiles and Hart Brick, and Morin Brick, chimney top dampers, flashing, firebrick, dampers, mortar, cement, lime, and natural stone veneer. Sold to masons, contractors, and homeowners for fireplace and chimney projects.
• Masonry Products, Coatings and Cleaners Comprehensive line of masonry products, coatings, and cleaners from suppliers including Silpro, Conproco, Prosoco, UMACO, Sakrete, and Quikrete. Used by masons and contractors for professional masonry work.
• Drainage Products Drainage products including ADS coils and fittings (4" and 6"), perforated and solid pipe, SCH 40 and SDR 35 pipe, galvanized and plastic culvert pipe (8"-24"), trench drains, filter fabric, sump pumps, concrete dry wells, and catch basins. Sold to contractors and homeowners for site drainage projects.
• Concrete and Light Weight Masonry Units (CMU) Standard Concrete and Light Weight Masonry Units and Architectural CMU in a wide variety, with custom architectural colored masonry units available upon request. Core concrete block product line for building trades.
• Delivery Services Timely delivery of products to businesses, homes, and job sites across most of New Hampshire, providing logistics support as an add-on service alongside product purchases.
• Product Consulting Services Consultative in-person and phone-based guidance providing honest and accurate information to help customers identify which products best meet their project needs, with no hard-sell pressure.
• Contractor Referral Network Network of trusted and experienced local contractors available for customer referrals, generating warm introductions for both retail consumers seeking installation services and contractors seeking product leads.

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

22 partnerships are on record, tiered core and minor.

• EverloccoreOthersGilbert Block is a proud provider of EverLoc Retaining Walls, offering both Traditional Series and Full Series lightweight one-square-foot retaining wall units for commercial and residential applications.
• World BlockcoreOthersGilbert Block carries World Block Landscape Blocks, known for their simplicity and functionality in building walls quickly and efficiently across the nation.
• Stone Strong SystemscoreOthersStone Strong blocks are distributed by Gilbert Block, featuring the largest precast retaining wall block on the market with a 24 square foot face measuring 3 feet by 8 feet for large-scale highway, railroad, and commercial applications.
• Techno-BlocminorOthersGilbert Block represents Techno-Bloc paver products, offering concrete pavers in a wide variety of shapes and colors.
• Cambridge PaversminorOthersCambridge Pavers are represented by Gilbert Block, providing customers with additional paver options.
• PavestoneminorOthersGilbert Block is a dealer for Pavestone products, offering concrete pavers in various shapes and colors.
• UnilockminorOthersGilbert Block carries Unilock paver products, providing additional design options for patios, walkways, and driveways.
• SEKminorOthersSEK provides landscape accessories including paver restraint, edging, and wall/paver lighting that Gilbert Block carries.
• Alliance GatorminorOthersAlliance Gator products including stabilizing sands, sealers, and cleaners are offered through Gilbert Block.
• The Stone YardminorOthersThe Stone Yard supplies natural stone products that Gilbert Block stocks for landscape and masonry veneer needs.
• Roll RockminorOthersRoll Rock provides stone products available through Gilbert Block's inventory.
• Delgado StoneminorOthersDelgado Stone products are stocked by Gilbert Block for natural stone applications.
• Connecticut StoneminorOthersConnecticut Stone supplies natural stone products that Gilbert Block carries for customers.
• SilprominorOthersSilpro provides masonry products, coatings and cleaners available through Gilbert Block.
• ConprocominorOthersConproco products are part of the masonry coatings and cleaners lineup at Gilbert Block.
• ProsocominorOthersProsoco masonry products, coatings and cleaners are available through Gilbert Block.
• UMACOminorOthersUMACO products round out the masonry coatings and cleaners available at Gilbert Block.
• SakreteminorOthersSakrete mortar and concrete products are stocked by Gilbert Block.
• QuikreteminorOthersQuikrete concrete and mortar products are available through Gilbert Block locations.
• Redland BrickminorOthersRedland Brick products are available as fireplace and chimney accessories through Gilbert Block.
• Stiles and Hart BrickminorOthersStiles and Hart Brick is another brick supplier carried by Gilbert Block for fireplace and chimney projects.
• Morin BrickminorOthersMorin Brick products round out the brick offerings available at Gilbert Block.

Scale indicators3 records

Recent moves4 records

Expansion highlights3 records

Broad incumbents

• Lowe's: Second-largest US home improvement retailer with national big-box footprint selling concrete, masonry, pavers, and landscape products. Competes head-on with Gilbert Block's retail and prosumer categories in the New Hampshire market.
• 84 Lumber: National lumber and building materials dealer with 250+ locations serving contractors and DIY consumers. Comparable wholesale/retail building materials distribution model with strong contractor focus, though with much broader national reach than Gilbert Block.
• ABC Supply Co. Largest US wholesale distributor of roofing, siding, and exterior building products with complementary masonry/landscape exposure. Comparable pro-contractor distribution model with a national footprint, competing for trade-customer wallet share.
• The Home Depot: Largest US home improvement retailer with nationwide big-box stores selling lumber, concrete, masonry, pavers, and landscape supplies. Explicitly referenced by Gilbert Block as the primary competitive threat; competes on assortment and price across Gilbert Block's retail categories.
• Oldcastle APG (CRH): National manufacturer of concrete masonry units, precast products, pavers, and retaining wall systems under brands like Belgard and Anchor. Directly competes with Gilbert Block's manufactured CMU and precast lines at scale, and is also an indirect supplier through hardscape brands.
• SiteOne Landscape Supply: Largest national distributor of landscape supplies including hardscapes, pavers, natural stone, mulches, and irrigation. Highly comparable landscape product mix to Gilbert Block, with broader geographic reach and more institutional buying power; competes for both pro-contractor and retail segments.
• BMC Stock Holdings: Large national building materials distributor serving pro builders, remodelers, and consumers across multiple categories including masonry, lumber, and millwork. Comparable diversified building materials distributor model with broader geographic and category footprint.

Others

• Unilock: Major North American manufacturer of concrete pavers and segmental retaining wall systems carried by Gilbert Block. A key vendor partner but also a brand that contractors could purchase directly or through competing dealers in overlapping service areas.
• Quikrete Companies: Largest US manufacturer of packaged concrete, mortar, and masonry products; Gilbert Block is a retail dealer for Quikrete/Sakrete bagged goods. Acts as both supplier and indirect competitor in concrete/masonry categories.

Direct peers

• Stoneyard.com: New England-based (Massachusetts) natural stone and thin veneer supplier serving both wholesale contractors and retail customers across the region. Closest direct comparable to Gilbert Block's natural stone, veneer, and landscape supply lines, with overlapping contractor/dealer/retail customer base in the Northeast.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/GilbertblockCo

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Gilbert Block