What Mjm Masonry & Custom Construction, Inc. does

MJM Masonry & Custom Construction, Inc., operating as MJM Masonry, is a privately held masonry contractor founded in 1992 and headquartered at 61 Forest Street in Arlington, Massachusetts. The company provides commercial and residential masonry services — including brick work, stonework, brick veneers, elevator shaft construction, chimneys, retaining walls, stairwells, patios, and residential fireplaces — alongside stone and brick restoration. It serves homeowners, commercial property developers, and general contractors in the Greater Boston and broader New England area, with named commercial customers including Pingree School, Dick's Sporting Goods, Historic Boston (Kittredge House restoration), and general contractor Metric Construction, and a project portfolio spanning Boston (136 Shawmut Ave, 306 Dartmouth Street), Revere, Gloucester, Shrewsbury, and Medford.

The business operates a project-based, per-quote revenue model with no subscription or recurring components, generating revenue on a one-time license basis. MJM owns its equipment fleet and employs certified tradespeople, supporting direct-to-customer delivery via phone, email, website inquiries, and walk-in traffic. All field employees hold OSHA 10 or OSHA 30 certification, and the company has accumulated consecutive safety recognitions — STEP Awards and Platinum/Diamond tiers from Associated Builders and Contractors Inc. between 2008 and 2017 — along with unrestricted building, home improvement, and CDL trucking licenses.

MJM Masonry's principal differentiator is sustained media visibility: owner Mark McCullough has been featured as the resident mason on PBS' Emmy Award-winning "This Old House" since 2006 and on "Ask This Old House" since 2016, providing a brand-driven top-of-funnel channel that few specialty contractors of this scale can match. Founder-led ownership, no external funding, and 30+ years of continuous operation position the firm as a stable, lifestyle-scale specialty contractor rather than a venture-backed growth business.

Name

Mjm Masonry & Custom Construction, Inc.

Legal name

MJM Masonry, Inc.

Website

https://mjmmasonry.com

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

11–50 employees

Short description

MJM Masonry & Custom Construction provides commercial and residential masonry, brick, stone, and restoration services across the Greater Boston area, serving homeowners, general contractors, and commercial clients including Dick's Sporting Goods and Pingree School.

Ownership category

akta.pro rank

Product category

Masonry Construction Services

NAICS

Masonry Contractors (23814), Masonry Contractors (238140), Residential Remodelers (236118)

SIC

General Bldg Contractors - Residential Bldgs (1520), General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

Stone Masonry Repair & Restoration (HSAGALAJ)

akta.pro secondary industries

Chimney Masonry Repair (Crown, Tuckpointing, Brick) (HSAGALAK), Masonry Repointing & Mortar Joint Repair (HSAGALAH), Chimney, Parapet & Roofline Masonry Repair (HSAPAKAL)

Keywords

• Masonry construction
• Brick work
• Stone work
• Masonry restoration
• Chimney construction

Headquarters

HQ city

Arlington

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Masonry and Construction Services: Project-based revenue from residential and commercial masonry services including brick work, stone work, restorations, brick veneers, elevator shaft construction, chimneys, retaining walls, stairwells, and patios. Revenue is generated on a per-project basis with no subscription or recurring components.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

MJM Masonry provides commercial and residential masonry construction services, including brick work, stone work, brick veneers, elevator shaft construction, chimneys, retaining walls, stairwells, patios, and fireplaces. The company also specializes in expert stone and brick restoration, revitalizing aging masonry to better-than-original condition. Projects are delivered using an owned equipment fleet and skilled in-house manpower across the Greater Boston area.

Product overview

MJM Masonry is a service-based masonry and construction company offering a unified portfolio of residential and commercial masonry services. The core offerings include commercial masonry (brick veneers, elevator shaft construction), residential masonry (chimneys, retaining walls, stairwells, patios, fireplaces), and stone/brick restoration. Their services span the Greater Boston area, serving both large commercial construction projects and artisanal residential jobs with the same attention to detail. The company showcases completed projects through their portfolio including properties in Boston (136 Shawmut Ave, 306 Dartmouth Street, 100 Beacon Street), Revere (Roseland), Gloucester (Eastern Point Retreat), Shrewsbury (Lakeway Commons), and others. They also maintain active media presence through appearances on This Old House and Ask This Old House.

Differentiator

Problem solved

Functional benefit

Products and services

• Commercial Masonry Services Professional commercial masonry work including brick veneering and elevator shaft construction for large-scale construction projects, commercial buildings, apartments, and retail stores.
• Residential Masonry Services Residential masonry services for homeowners including chimneys, retaining walls, stairwells, and patios with construction and design capabilities.
• Stone and Brick Restoration Expert restoration services for stone and brick work, revitalizing aesthetic and functionality of existing structures to better-than-original condition.
• Residential Fireplaces Custom residential fireplace construction and installation services for homeowners.

Named customers4 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• Associated Builders and Constructors Inc.minorOthersProud members of Associated Builders and Constructors, which provides safety award programs (STEP awards) and industry resources. Company is listed on ABC's directory for Division 04 Masonry.

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Gilbane Building Company: Major privately held construction manager headquartered in Providence, RI, with significant Boston and New England presence. Competes for institutional and commercial projects in the same territory, often sourcing masonry trade work from regional specialty contractors like MJM.
• Holder Construction Group: National construction manager with significant commercial and mission-critical work. While less concentrated in Boston, represents the scale of incumbent firms that absorb large masonry packages MJM cannot self-perform.
• Skanska USA: Global construction and development firm with a major Boston-area commercial and civil practice. Operates as a top-tier incumbent in the same regional market where MJM delivers masonry subcontractor scope.
• Structure Tone: National commercial construction manager with strong Boston presence across corporate, healthcare, and institutional interiors and core-and-shell. Competes for similar Boston commercial masonry scope and operates at a substantially larger scale.
• Suffolk Construction Company: One of the largest Boston-based general contractors, operating nationally across commercial, healthcare, education, and life sciences. Competes indirectly with MJM for large commercial masonry packages and frequently engages specialty masonry subcontractors in the same Boston market.
• Turner Construction Company: Largest U.S. commercial general contractor with national footprint and active Boston operations. Represents the large-scale end of the same Boston commercial construction market where MJM participates as a specialty masonry subcontractor.

Direct peers

• Dellbrook | JKS: New England-based construction manager and general contractor with significant masonry and building envelope work. Comparable in serving institutional and commercial clients across Massachusetts with a focus on quality self-performed trade work.
• Shawmut Design and Construction: Boston-headquartered construction management firm specializing in complex commercial, institutional, and hospitality projects. Competes for the same Boston-area commercial masonry subcontracts and shares overlap in the institutional client base.
• Lee Kennedy Company: Boston-based commercial construction manager and general contractor with deep New England roots. Comparable to MJM in serving institutional, education, and commercial clients in the same Boston geography with masonry and building envelope scope.
• Consigli Construction Co., Inc. Massachusetts-based, family-owned general contractor with a strong masonry and restoration capability serving the Greater Boston and broader New England market. Competes with MJM for similar commercial, institutional, and historic restoration projects in the same geography.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/mjm-masonry-inc

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

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 Mjm Masonry & Custom Construction, Inc.