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Contractors in Diamond Bar, CA

23,806 Results within

Market Sector
Company Type
Business Classification
Trades and Services
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Aqua Survey, Inc.

California • Connecticut • Delaware • Florida • Georgia • Maine • Maryland • Massachusetts • Minnesota • New Jersey • New York • North Carolina • Pennsylvania • South Carolina • Texas • Wisconsin
Specialty Contractor
Commercial
Design and Engineering
Aqua Survey, Inc. is a Specialty Contractor that serves the Flemington, NJ area and specializes in Design and Engineering.

Falcon Striping Inc.

California • New York
Specialty Contractor
Commercial, Industrial and Energy, Institutional
Falcon Striping Inc. is a Specialty Contractor that serves the Corona, CA area.

Nor-Cal Pump & Well Drilling, Inc.

California
General Contractor, Specialty Contractor
Infrastructure
Earthwork
Nor-Cal Pump & Well Drilling, Inc. is a General Contractor, Specialty Contractor that serves the Yuba City, CA area and specializes in Earthwork.
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SelectAVS

Las Vegas, NV • Nashville, TN • Reno, NV • Scottsdale, AZ • California
Specialty Contractor
Commercial
Audio Video Communications, Communications, Data and Voice Communications, Video Surveillance
SelectAVS is a full-service low-voltage integration company specializing in commercial audio/video, surveillance, and structured cabling solutions. With over 20 years of experience, we partner with restaurants, retail brands, hospitality groups, fitness centers, and franchise operators to deliver reliable, future-ready systems that are easy to manage and scale. We handle every aspect of your low-voltage infrastructure—from pre-construction design and rough-in to final trim, system programming, and ongoing support. Our team is known for delivering clean installs, fast turnarounds, and responsive service across California, Nevada, and beyond. We also offer equipment leasing options for surveillance and background music systems—providing clients with zero-upfront-cost solutions and full support built into a predictable monthly plan. Whether you're opening one location or rolling out a national brand, SelectAVS is your low-voltage partner from build-out to long-term service.

Knox Company

Washington, DC • Alabama • Alaska • Arizona • Arkansas • California • Colorado • Connecticut • Delaware • Florida • Georgia • Hawaii • Idaho • Illinois • Indiana • Iowa • Kansas • Kentucky • Louisiana • Maine • Maryland • Massachusetts • Michigan • Minnesota • Mississippi • Missouri • Montana • Nebraska • Nevada • New Hampshire • New Jersey • New Mexico • New York • North Carolina • North Dakota • Ohio • Oklahoma • Oregon • Pennsylvania • Rhode Island • South Carolina • South Dakota • Tennessee • Texas • Utah • Vermont • Virginia • Washington • West Virginia • Wisconsin • Wyoming
Supplier
Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential
Electronic Security, Fire Suppression
Knox Company is a Supplier that serves the Phoenix, AZ area and specializes in Fire Suppression, Electronic Security.

PPR Enterprises, Inc.

California • Nevada • Oregon
General Contractor
Commercial
Rough Carpentry
PPR Enterprises, Inc. is a General Contractor that serves the Huntington Beach, CA area and specializes in Rough Carpentry.

M and R

Alabama • Alaska • Arizona • Arkansas • California • Colorado • Connecticut • Delaware • Florida • Georgia • Hawaii • Idaho • Illinois • Indiana • Iowa • Kansas • Kentucky • Louisiana • Maine • Maryland • Massachusetts • Michigan • Minnesota • Mississippi • Missouri • Montana • Nebraska • Nevada • New Hampshire • New Jersey • New Mexico • New York • North Carolina • North Dakota • Ohio • Oklahoma • Oregon • Pennsylvania • Rhode Island • South Carolina • South Dakota • Tennessee • Texas • Utah • Vermont • Virginia • Washington • West Virginia • Wisconsin • Wyoming
Specialty Contractor
Commercial
Electronic Security
M and R is a Specialty Contractor that serves the Lincolnshire, IL area and specializes in Electronic Security.
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Skyline Scaffold Inc.

California • Nevada
Specialty Contractor
Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential
Scaffolding, Shoring and Underpinning
Skyline Scaffold Inc. is a Specialty Contractor that serves the Greeley, CO area and specializes in Scaffolding, Shoring and Underpinning.
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Side Studio

California
Architect
Commercial, Healthcare, Institutional, Residential
Side Studio is a Architect that serves the Orange, CA area.

ModCorr

DC, DC • Alabama • Arizona • Arkansas • California • Colorado • Connecticut • Florida • Georgia • Hawaii • Idaho • Illinois • Indiana • Iowa • Kansas • Kentucky • Louisiana • Maine • Maryland • Massachusetts • Michigan • Minnesota • Mississippi • Missouri • Montana • Nebraska • Nevada • New Hampshire • New Jersey • New Mexico • New York • North Carolina • North Dakota • Ohio • Oklahoma • Oregon • Pennsylvania • Rhode Island • South Carolina • South Dakota • Tennessee • Texas • Utah • Vermont • Virginia • Washington • West Virginia • Wisconsin • Wyoming
Specialty Contractor
Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional
Ceilings, Concrete, Countertops, Curtain Wall and Glazed Assemblies, Door and Window Hardware, Doors and Frames, Electronic Security, Entrances and Storefronts, Finish Carpentry, Flooring, Glass and Glazing, Louvers, Metals, Painting and Coatings, Plaster and Gypsum Board, Plastic Composite Fabrications, Project Management and Coordination, Roof Windows and Skylights, Specialty Doors and Frames, Structural Steel, Tile, Translucent Wall and Roof Assemblies, Vents, Wall Finishes, Window Wall Assemblies, Windows
ModCorr is a Specialty Contractor that serves the Galveston, TX area and specializes in Door and Window Hardware, Window Wall Assemblies, Metals, Windows, Plastic Composite Fabrications, Project Management and Coordination, Plaster and Gypsum Board, Glass and Glazing, Translucent Wall and Roof Assemblies, Electronic Security, Concrete, Flooring, Specialty Doors and Frames, Painting and Coatings, Countertops, Roof Windows and Skylights, Louvers, Vents, Structural Steel, Ceilings, Wall Finishes, Entrances and Storefronts, Doors and Frames, Curtain Wall and Glazed Assemblies, Finish Carpentry, Tile.

WCE INC., DBA West Coast Environmental

California
Specialty Contractor
Commercial, Residential
Demolition
WCE INC., DBA West Coast Environmental is a Specialty Contractor that serves the Rancho Cordova, CA area and specializes in Demolition.

JV ORTA'S RENT-A-FENCE INC

California
Specialty Contractor
Commercial, Institutional, Residential
Demolition, Temporary Fencing
JV ORTA'S RENT-A-FENCE INC is a Specialty Contractor that serves the Hollister, CA area and specializes in Demolition, Temporary Fencing.

AGC Inc.

California
Specialty Contractor
Commercial, Healthcare, Industrial and Energy, Institutional
Design and Engineering, Heating Ventilating and Air Conditioning HVAC, Plumbing
AGC is able to consistently deliver customer service because we have engineers and project managers that know how to ask questions and know how to listen. When we begin each project, we engage with the customer to communicate the project goals and constraints. Throughout the design and construction process, we look out for the customer's interest by initiating discussion about design issues early and often to minimize change costs and schedule impacts. We do not sit back and wait for the customer to ask for help. We actively look for ways to assist both the customer and the project team to achieve mutual success. For AGC, customer service sometimes means offering solutions to unique problems that the typical mechanical contractor would consider outside their scope of work. For instance, we developed a complete testing and documentation program for fire/smoke dampers to help hospitals meet JHACO maintenance requirements. And, on several occasions, we have evaluated sound and vibration problems in existing buildings, recommended solutions, and implemented the solutions in the field. AGC's track record of customer service is proven by the long-term relationships that have been developed with both owners and general contractors. We would love for you to join our growing network of satisfied customers.

Alta Finish and Stair Inc

California
Specialty Contractor
Commercial, Healthcare, Residential
Closet Doors, Composite Doors, Door Hardware, Door Louvers, Doors and Frames, Hardware Accessories, Metal Doors and Frames, Panel Doors, Sanitary Facilities, Toilet Bath and Laundry Accessories, Wood Doors and Frames, Wood Trim
Alta Finish and Stair Inc is a Specialty Contractor that serves the Moreno Valley, CA area and specializes in Wood Trim, Metal Doors and Frames, Door Hardware, Panel Doors, Composite Doors, Sanitary Facilities, Hardware Accessories, Doors and Frames, Wood Doors and Frames, Closet Doors, Door Louvers, Toilet Bath and Laundry Accessories.

Sonoma Cast Stone

California • Nevada
Specialty Contractor
Commercial, Healthcare, Institutional, Residential
Concrete, Plumbing
Sonoma Cast Stone is a Specialty Contractor that serves the Petaluma, CA area and specializes in Concrete, Plumbing.
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IDN-GLOBAL INC dba IDN-ACME, INC

Alabama • Alaska • Arizona • Arkansas • California • Colorado • Connecticut • Delaware • Florida • Georgia • Hawaii • Idaho • Illinois • Indiana • Iowa • Kansas • Kentucky • Louisiana • Maine • Maryland • Massachusetts • Michigan • Minnesota • Mississippi • Missouri • Montana • Nebraska • Nevada • New Hampshire • New Jersey • New Mexico • New York • North Carolina • North Dakota • Ohio • Oklahoma • Oregon • Pennsylvania • Rhode Island • South Carolina • South Dakota • Tennessee • Texas • Utah • Vermont • Virginia • Washington • West Virginia • Wisconsin • Wyoming
Specialty Contractor
Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential
IDN-GLOBAL INC dba IDN-ACME, INC is a Specialty Contractor that serves the Metairie, LA area.
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KJI Plumbing, Inc.

California
General Contractor, Specialty Contractor
Commercial, Healthcare, Infrastructure, Institutional, Residential
Plumbing
KJI Plumbing, Inc. is a family owned business that started in 1998. We specialize in New Construction Commercial and residential projects and Service and Repair which includes but not limited to Re-pipes, replacing toilets, sinks and showers snaking and mainline sewer cleaning and hydro jetting sewer and drain lines.

Redwood Painting Co Inc

California
Specialty Contractor
Industrial and Energy
Ceilings, Countertops, Finish Carpentry, Flooring, Metals, Painting and Coatings, Plaster and Gypsum Board, Plastic Composite Fabrications, Tile, Wall Finishes
Redwood Painting Co Inc is a Specialty Contractor that serves the Pittsburg, CA area and specializes in Metals, Plastic Composite Fabrications, Plaster and Gypsum Board, Flooring, Painting and Coatings, Countertops, Ceilings, Wall Finishes, Finish Carpentry, Tile.
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Global Roofing Group

Arizona • California • Kansas • Mississippi • Nevada • New Mexico • South Dakota • Texas • Washington
Specialty Contractor
Commercial, Healthcare, Industrial and Energy, Institutional, Residential
Roofing
Global Roofing Group is a Specialty Contractor that serves the Phoenix, AZ area and specializes in Roofing.
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Urban Arena, Inc.

Arizona • California • Nevada
Architect
Commercial, Residential
Design and Engineering
Urban Arena, Inc. is a Architect that serves the San Diego, CA area and specializes in Design and Engineering.
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Maz Glass

California
Specialty Contractor
Commercial, Healthcare, Infrastructure, Institutional, Residential
Curtain Wall and Glazed Assemblies, Door and Window Hardware, Doors and Frames, Entrances and Storefronts, Glass and Glazing, Louvers, Roof Windows and Skylights, Specialty Doors and Frames, Translucent Wall and Roof Assemblies, Vents, Window Wall Assemblies, Windows, Wood Framing
Maz Glass is a Specialty Contractor that serves the Oakland, CA area and specializes in Door and Window Hardware, Window Wall Assemblies, Windows, Wood Framing, Glass and Glazing, Translucent Wall and Roof Assemblies, Specialty Doors and Frames, Roof Windows and Skylights, Louvers, Vents, Entrances and Storefronts, Doors and Frames, Curtain Wall and Glazed Assemblies.

AECSS, LLC

Alabama • Alaska • Arizona • Arkansas • California • Colorado • Connecticut • Delaware • Florida • Georgia • Hawaii • Idaho • Illinois • Indiana • Iowa • Kansas • Kentucky • Louisiana • Maine • Maryland • Massachusetts • Michigan • Minnesota • Mississippi • Missouri • Montana • Nebraska • Nevada • New Hampshire • New Jersey • New Mexico • New York • North Carolina • North Dakota • Ohio • Oklahoma • Oregon • Pennsylvania • Rhode Island • South Carolina • South Dakota • Tennessee • Texas • Utah • Vermont • Virginia • Washington • West Virginia • Wisconsin • Wyoming
Architect, Consultant, Engineer
Commercial, Healthcare, Industrial and Energy, Institutional
Architectural Design and Engineering, Bim and Model Making Services, Design and Engineering, Design Coordination Services, Electrical, Electrical Design and Engineering, Estimating, Mechanical Design and Engineering, Project Management and Coordination, Structural Design and Engineering
Fifty years in the AEC industry. Expertise in bringing together Design Teams best suited for your particular needs. Capable of Engineering Studies, Forensic Engineering, and Electrical design. Complete project design teams brought together and managed for your project. Experts in electrical systems studies, including Arc Flash. Extensive experience in DoD (Army-COE, Navy, Air Force), VA, DHS and GSA design projects. Code research, WBDG, UFGS.
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GMS Elevator Services, Inc.

California
Specialty Contractor
Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential
Dumbwaiters, Elevators, Escalators and Moving Walks, Lifts, Other Conveying Equipment, Scaffolding, Turntables
GMS Elevator Services has a rich legacy in the vertical transportation industry, spanning four generations. Founded in 1987 by G. Mathew Simpkins, Pamela Simpkins, and Gordon Simpkins, and incorporated in 1992, GMS has grown from a small family-owned business to a thriving independent elevator company with over 30 employees. In 2003, GMS proudly introduced the fourth-generation elevator mechanic, Nathen Simpkins, to the company. Over the years, GMS expanded its capabilities to include the manufacturing of custom elevator equipment and hydraulics. The company’s ongoing commitment to growth and excellence is demonstrated through its adherence to industry-leading standards and the expertise of its team members. In 2003, GMS introduced a structured safety program, supported by an accredited state and federal program tailored specifically for elevator mechanics and apprentices. In 2025 we are pleased to announce the distribution partnership with Kohler Elevator to supply state of the art MRL Equipment to the Los Angeles area. In 2014, GMS expanded its offerings to include the refurbishment of elevator cab interiors, refinishing entrances, and installing new ceilings and flooring. These initiatives, alongside our ongoing focus on safety and growth, have contributed to the company’s continued success and ability to undertake larger, more complex projects. GMS has made significant strides in three key areas of the elevator industry: service, modernization, and new construction. We proudly service multiple school districts, college districts, nursing and retirement facilities, various LA County Facilities, hospitals, apartment complexes. We hope to continue growth through customer service. With customer satisfaction as our highest priority, GMS has fostered a service-oriented company culture that ensures we deliver projects—whether new installations, maintenance agreements, repairs, or modernization—on time and within budget. Our dedication to quality and efficiency continues to drive our success and growth in the elevator industry.
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J & J Services

California
Specialty Contractor
Commercial, Institutional, Residential
Heating Ventilating and Air Conditioning HVAC
J & J Services is a Specialty Contractor that serves the Galt, CA area and specializes in Heating Ventilating and Air Conditioning HVAC.

Plas-Tal Mfg. Co.

California
General Contractor
Commercial
Structural Steel
Plas-Tal Mfg. Co. is a General Contractor that serves the Santa Fe Springs, CA area and specializes in Structural Steel.

Cook Coatings Inc.

Arizona • California • Nevada
Specialty Contractor
Commercial, Industrial and Energy, Institutional
Roofing
Cook Coatings Inc. is a Specialty Contractor that serves the Temecula, CA area and specializes in Roofing.
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Kodiak Roofing and Waterproofing

California • Hawaii • Idaho • Nevada • Oregon • Washington
Specialty Contractor
Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential
Aluminum Siding, Composite Wall Panels, Membrane Roofing, Metal Wall Panels, Roof Accessories, Roof and Deck Insulation, Roof Panels, Roof Pavers, Roof Specialties, Roof Tiles, Roofing, Sheet Metal Flashing and Trim, Sheet Metal Roofing, Sheet Metal Wall Cladding, Soffit Panels, Zinc Siding
Kodiak Roofing and Waterproofing is a Specialty Contractor that serves the Roseville, CA area and specializes in Metal Wall Panels, Membrane Roofing, Aluminum Siding, Roof and Deck Insulation, Sheet Metal Roofing, Roof Panels, Soffit Panels, Composite Wall Panels, Roof Specialties, Sheet Metal Wall Cladding, Roof Tiles, Zinc Siding, Roof Accessories, Roofing, Sheet Metal Flashing and Trim, Roof Pavers.

DOTec Engineering

Alabama • Arizona • Arkansas • California • Colorado • Connecticut • Florida • Georgia • Idaho • Illinois • Indiana • Iowa • Kansas • Kentucky • Louisiana • Maine • Maryland • Massachusetts • Michigan • Minnesota • Mississippi • Missouri • Montana • Nebraska • Nevada • New Jersey • New Mexico • New York • North Carolina • North Dakota • Ohio • Oklahoma • Oregon • Pennsylvania • Rhode Island • South Carolina • South Dakota • Tennessee • Texas • Utah • Vermont • Virginia • Washington • West Virginia • Wisconsin • Wyoming
Engineer
Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential
Design and Engineering
DOTec Engineering is a Engineer that serves the Saint Charles, MO area and specializes in Design and Engineering.
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So Cal Sandbags, Inc.

California
General Contractor
Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential
Earthwork
So Cal Sandbags, Inc. is a General Contractor that serves the Corona, CA area and specializes in Earthwork.

TWINSTEPS Architecture

California
Architect
Healthcare
Design and Engineering
TWINSTEPS Architecture is a Architect that serves the Irvine, CA area and specializes in Design and Engineering.
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Kern County Erectors Inc.

California
Specialty Contractor
Commercial, Industrial and Energy
Structural Steel
Kern County Erectors Inc. is a Specialty Contractor that serves the Bakersfield, CA area and specializes in Structural Steel.
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Sierra Pacific West, INC

California
Specialty Contractor
Commercial, Healthcare, Institutional
Earthwork
Grading and Demolition General Contractor in San Diego County, CA.
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C.W.I STEEL INC

California
Specialty Contractor
Commercial, Institutional, Residential
Fabricated Engineered Structures, Metal Fabrications, Structural Design and Engineering, Structural Steel, Structural Steel Framing Erection, Welding and Cutting Gases Piping
We love what we do, and we care about what we do and like to exceed expectations. We have experience that sets us aside with a small team with huge capacity.

Assured Glass Inc.

California
Specialty Contractor
Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential
Glass and Glazing
Assured Glass Inc. is a Specialty Contractor that serves the Rancho Cucamonga, CA area and specializes in Glass and Glazing.

Excel Lathing

California
Specialty Contractor
Commercial, Industrial and Energy, Residential
Excel Lathing is a Specialty Contractor that serves the San Leandro, CA area.
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Anderson & Ballou Inc.

California
General Contractor, Specialty Contractor
Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential
Earthwork, Fire Suppression, Plumbing
We are an Underground Utility Company specializing in both wet and dry utilities.
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John Stewart Company

California
Owner Real Estate Developer
Residential
Design and Engineering
Owner, developer and property management of affordable housing
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Acumatica, Primavera Consultants, Project Control Experts

Alabama • California • Florida • Georgia • Illinois • Louisiana • Michigan • New York • North Dakota • Ohio • Pennsylvania • Texas • Virginia
Consultant, Specialty Contractor, Supplier
Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional
Project Management and Coordination
Our team of Acumatica & Primavera Software Experts provide Acumatica, Oracle Primavera software as well as Asta Powerproject. Our services include, implementation, integration, training and support services. Our Team assists contractors just like you, with software acquisition, deployment, training and support. Our Past Performances include Commercial and Federal Projects: Clients include: CMS Energy, HardRock, Marathon Petroleum, Roberts Pipeline, HDR, Basin Electric, Domtar, Fluor, DHS, Marines, USCIS, USAID, USACE, Priceline.com, AECOM, Verizon, Exxon Mobile, Prime Projects and many more.
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Parkmatic

Arizona • California • Florida • Georgia • Massachusetts • New Jersey • New York • South Carolina • Texas
Specialty Contractor
Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential
Parkmatic is a Specialty Contractor that serves the Manhasset, NY area.

Torrent Resources

California
Engineer, Specialty Contractor
Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential
Plumbing
Torrent Resources is a Engineer, Specialty Contractor that serves the Bloomington, CA area and specializes in Plumbing.

Browse Contractors in Diamond Bar, California by Trade

Design and Engineering

Project Management

Demolition

Earthwork

Landscaping

Concrete

Masonry

Structural Steel

Electrical

Flooring

Frequently Asked Questions

How many contractors in Diamond Bar, CA are on the Procore Construction Network?

There are currently 23,806 contractors in Diamond Bar, CA on the Procore Construction Network.

How can I find and connect with contractors in Diamond Bar, CA?

The Procore Construction Network allows you to search for contractors in Diamond Bar, CA that meet your business needs. Most companies provide a phone number or website on their business page so you can easily connect with them.

How can contractors in Diamond Bar, CA join the Procore Construction Network?

The Procore Construction Network is free and open to any businesses in the construction industry. Click Sign Up at the top of this page to submit your information and create your business page.

How do I know what areas contractors in Diamond Bar, CA cover?

Most businesses listed on the Procore Construction Network have updated their service area. Select a business to view a service area map and find what other areas they work in.

How do I invite contractors in Diamond Bar, CA on the Procore Construction Network to bid on projects?

The Procore platform offers a Bidding tool to Procore customers. If your company uses our Bidding solution, you can search and invite businesses on the Procore Construction Network directly from the Bidding tool. Not yet using Procore? Request a demo.

How many contractors in Diamond Bar, CA are on the Procore Construction Network?

There are currently 23,806 contractors in Diamond Bar, CA on the Procore Construction Network.

How can I find and connect with contractors in Diamond Bar, CA?

The Procore Construction Network allows you to search for contractors in Diamond Bar, CA that meet your business needs. Most companies provide a phone number or website on their business page so you can easily connect with them.

How can contractors in Diamond Bar, CA join the Procore Construction Network?

The Procore Construction Network is free and open to any businesses in the construction industry. Click Sign Up at the top of this page to submit your information and create your business page.

How do I know what areas contractors in Diamond Bar, CA cover?

Most businesses listed on the Procore Construction Network have updated their service area. Select a business to view a service area map and find what other areas they work in.

How do I invite contractors in Diamond Bar, CA on the Procore Construction Network to bid on projects?

The Procore platform offers a Bidding tool to Procore customers. If your company uses our Bidding solution, you can search and invite businesses on the Procore Construction Network directly from the Bidding tool. Not yet using Procore? Request a demo.