About J&M


Since 1953 J&M Concrete Construction (formerly Jezowski & Markel) has been one of Southern California’s most distinguished site concrete contractors.  J&M has constructed hundreds of the region’s most significant projects.  Many of those notable installations are presented in this website.

J&M Concrete Contractors Attributes:

J&M’s Mission Statement:

  • Develop and nurture collaborative relationships between owners, design professionals, and general contractor’s.  Our principal goal is to develop a lasting team partnership that will continuously result in beautiful architectural concrete construction.

Union Affiliations:

  • Cement masons, carpenters and laborers.

Collaboration with Owner and Design Team:

  • J&M has on display over 3,500 6″ concrete samples and 500 custom aggregates on display that can assist designer’s in developing their site paving design ideas.
  • Provide budgetary estimates at all phases of hardscape design.
  • An in-house Landscape Architect serving a unique role in the Southern California site concrete industry who has the following qualifications and provides the following services:
    • Licensed California Landscape Architect #2111 since 1981.
    • LEED AP B+CD accredited.
    • NRMCA Pervious Concrete Technician.
    • Assist in merging designers design ideas within budget and constructability constraints.

    More than 27 years of professional Landscape Architectural experience and 9 years of architectural concrete sales and marketing experience.

    • Preparation of custom concrete samples.
    • Provide design assistance at all phases of work including value engineering, constructability review, construction document and specification review.
    • Preparation of site concrete paving joint layout shop drawings.
    • Provide “Lunch & Learn” seminars to design professionals with an emphasis on integrating architectural concrete design principles with proven hardscape construction methodologies.

Site Concrete Elements:

Architectural Concrete Paving Finishes:

  • Intecrete®
  • Exposed aggregate, i.e. Topcast
  • Sandblast
  • Stamped
  • Broom
  • Poropave® Permeable Concrete Paving
  • Textured
  • Ground and/or polished
  • Acid
  • Color hardeners, aka “dust-on” or “shake-on”
  • Aggretop®
  • Stained
  • Tined
  • Rock salt
  • Are there other custom paving finishes you want to explore with us?

Cast-in-Place Architectural Concrete Finishes and Types:

  • Boardform
  • Stripped including MDO and HDO plywood finishes
  • Exposed aggregate up to 5′ feet in wall height
  • Sacked
  •  Sandblast
  •  J&M Stratified Wall™
  •  Vertical Intecrete®
  • SmoothCast®
  • Seatwalls
  • Steps and cheekwalls
  • Planter walls
  • Amphitheater seating
  • Cantilevered walls
  • Monument sign walls
  • Concrete walls up 40′ in height
  • Are there other custom wall finishes you want to explore with us?

Production and Civil (“B” Permit) Concrete:

  • Curbs, ribbon and curb gutters, swales, City sidewalk, driveways, concrete drainage elements, and accessible ramps including truncated domes
  • Concrete footings for site elements such as walls, light standards, site furniture, bollards, etc.
  • Tile, stone, and paver concrete subslabs
  • On-structure planter bottom drainage slabs
  • On-structure paving

Structural Concrete Elements:

  • Building slabs, both on-grade and on-structure
  • Wall and column footings
  • Grade beams
  • Stem walls
  • Retaining walls

Specialty Concrete Elements:

  • Fountains including complete, turn-key installations that include waterproofing, plumbing and electrical
  • Sign walls
  • Custom elements in collaboration with designers and artists
  • Custom memorials in collaboration with various organizations, both public and private
  • Custom colored and textured logos

 J&M’s Patented or Trade Marked Concrete Products:

J&M is constantly exploring and developing new concrete products that expand our ability to fulfill the inspirations of designers as well as balance cost with constructability.  Some architectural concrete products that have been developed by J&M include:

  • Intecrete® architectural concrete paving
  • Vertical Intecrete® concrete wall finish
  • Aggretop® architectural concrete paving
  • PoroPave® permeable architectural concrete paving
  • J&M Stratified Wall™
  • SmoothCast® wall