Find Contractors in Diamond Bar, CA

Onboard Coworking

Onboard Coworking is a Consultant that serves the El Monte, CA area and specializes in Communications.

OC Grab Bars - Shower & Bathroom Grab Bar Installation

Aliso Viejo, CA • Anaheim, CA • Brea, CA • Buena Park, CA • Cerritos, CA • Costa Mesa, CA • Cypress, CA • Dana Point, CA • Fountain Valley, CA • Fullerton, CA • Garden Grove, CA • Huntington Beach, CA • Irvine, CA • La Habra, CA • La Palma, CA • Ladera Ranch, CA • Laguna Beach, CA • Laguna Hills, CA • Laguna Niguel, CA • Laguna Woods, CA • Lake Forest, CA • Long Beach, CA • Los Alamitos, CA • Midway City, CA • Mission Viejo, CA • Newport Beach, CA • Orange, CA • Placentia, CA • Rancho Santa Margarita, CA • San Clemente, CA • San Juan Capistrano, CA • Santa Ana, CA • Seal Beach, CA • Stanton, CA • Trabuco Canyon, CA • Tustin, CA • Westminster, CA • Yorba Linda, CA

General Contractor, Specialty Contractor

Commercial, Healthcare, Residential

Plumbing

GRAB BAR INSTALLATION:

For over 18 years, we have specialized in installing grab bars. With over 13,186 grab bars installed, we are your trusted experts in preventing slips and falls. Contact us today for a free over-the-phone quote and secure your home or office with our professional grab bar installation services.

ISD

California City, CA

Engineer, General Contractor

Industrial and Energy, Institutional

Heating Ventilating and Air Conditioning HVAC

ISD is a Engineer, General Contractor that serves the East Los Angeles, CA area and specializes in Heating Ventilating and Air Conditioning HVAC.

Intertek Building & Construction

Los Angeles, CA • Oakland, CA • Orange, CA • Phoenix, AZ • Salt Lake City, UT • San Diego, CA

Consultant

Commercial, Healthcare, Industrial and Energy, Institutional, Residential

Above Grade Vapor Retarders, Air Barriers, Aluminum Framed Entrances and Storefronts, Aluminum Siding, Below Grade Vapor Retarders, Bentonite Waterproofing, Built Up Bituminous Waterproofing, Cement Plastering, Cementitious and Reactive Waterproofing, Cementitious Wall Panels, Commissioning, Composite Wall Panels, Composite Windows, Curtain Wall and Glazed Assemblies, Dampproofing, Design and Engineering, Design Coordination Services, Fabricated Faced Panel Assemblies, Fabricated Panel Assemblies With Siding, Fabricated Wall Panel Assemblies, Fiber Cement Siding, Fixed Louvers, Flashing and Trim, Flat Seam Sheet Metal Wall Cladding, Flexible Flashing, Fluid Applied Membrane Air Barriers, Fluid Applied Waterproofing, Glass and Glazing, Glazed Aluminum Curtain Walls, Glazed Bronze Curtain Walls, Glazed Composite Curtain Wall, Glazed Stainless Steel Curtain Walls, Glazed Steel Curtain Walls, Glazed Timber Curtain Walls, Glazing Accessories, Joint Sealants, Louvers, Membrane Roofing, Metal Wall Panels, Metal Windows, Other Plastering, Plaster and Gypsum Board, Plaster and Gypsum Board Assemblies, Preformed Joint Seals, Roof Accessories, Roof and Deck Insulation, Roof Panels, Roof Specialties, Roof Windows, Roof Windows and Skylights, Roofing, Sheet Metal Flashing and Trim, Sheet Metal Membrane Air Barriers, Sheet Metal Roofing, Sheet Metal Wall Cladding, Sheet Metal Waterproofing, Sheet Waterproofing, Soffit Vents, Special Function Glazing, Special Function Windows, Stainless Steel Framed Entrances and Storefronts, Standing Seam Sheet Metal Wall Cladding, Swimming Pools, Terra Cotta Wall Panels, Tile Wall Panels, Traffic Coatings, Wall Panels, Water Drainage Exterior Insulation and Finish System, Water Repellents, Waterproofing, Weather Barriers, Window Wall Assemblies, Windows

Intertek’s Building Science Solutions (BSS) group is primarily focused on building enclosure consulting, commissioning, and field performance testing for new construction and retrofit projects. 

Hicks Plumbing Company LLC

Anaheim, CA

Specialty Contractor

Commercial, Residential

Plumbing, Plumbing General

Hicks Plumbing Company LLC is a Specialty Contractor that serves the Anaheim, CA area and specializes in Plumbing, Plumbing General.

California United Plumbing

California United Plumbing is a General Contractor that serves the Santa Fe Springs, CA area and specializes in Plumbing.

Paci Structures

Paci Structures is a Specialty Contractor that serves the Riverside, CA area and specializes in Concrete.

ECAM Technologies Corp.

Fresno, CA • Los Angeles, CA • Santa Barbara, CA • Ventura, CA

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential

Mobile Earth Moving Equipment, Safety Specialties, Security Detection Alarm and Monitoring, Security Equipment, Site Controls

ECAM Technologies Corp. is a Specialty Contractor that serves the Long Beach, CA area and specializes in Mobile Earth Moving Equipment, Safety Specialties, Security Detection Alarm and Monitoring, Security Equipment, Site Controls.

Penscott Electric Inc.

Anaheim, CA • Long Beach, CA • Los Angeles, CA • Riverside, CA

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional

Electrical

Penscott Electric Inc. is a Specialty Contractor that serves the Vernon, CA area and specializes in Electrical.

Sharony HVAC Services

Los Angeles, CA • Orange, CA • Riverside, CA

Consultant, Specialty Contractor

Commercial, Institutional, Residential

Heating Ventilating and Air Conditioning HVAC

Sharony HVAC Services is a Consultant, Specialty Contractor that serves the Huntington Beach, CA area and specializes in Heating Ventilating and Air Conditioning HVAC.

DVI ceiling T-bar Solutions

Los Angeles, CA

General Contractor

Commercial, Healthcare

Electrical

DVI ceiling T-bar Solutions is a General Contractor that serves the Los Angeles, CA area and specializes in Electrical.

Digicom-USA

Yorba Linda, CA

Specialty Contractor

Commercial, Healthcare, Infrastructure

Communications

Digicom-USA is a Specialty Contractor that serves the Yorba Linda, CA area and specializes in Communications.

Golden Scaffold

Anaheim, CA • Chino, CA • Covina, CA • Cypress, CA • Downey, CA • Gardena, CA • Huntington Beach, CA • Long Beach, CA • Los Angeles, CA • Orange, CA • Riverside, CA • Thousand Oaks, CA

Specialty Contractor

Commercial, Residential

Rough Carpentry

Your Trusted Partner in Scaffolding Solutions

Power Plus

Anaheim, CA • Auburn, WA • Grand Prairie, TX • Houston, TX • Lakeland, FL • Las Vegas, NV • Phoenix, AZ • South Amboy, NJ

Specialty Contractor, Supplier

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential

Electrical, Electrical Design and Engineering, Electrical Power Generation, Electrical Utilities High and Medium Voltage Distribution, Emergency Response Systems, Equipment Rental, Fuel Oil Detection and Alarm, Security Equipment, Temporary Electricity, Video Surveillance

Electrical Contractors, Temp power set-up,  Limited Specialty Pole installation and Maintenance, Generator rentals, Generator service and maintenance, installation. Temporary digital surveillance-DVS. 
.  

So-Cal Electric Inc.

Anaheim, CA • Brea, CA • Chino, CA • Hermosa Beach, CA • Huntington Beach, CA • Laguna Beach, CA • Long Beach, CA • Los Angeles, CA • Newport Beach, CA • Orange, CA • Pico Rivera, CA • Pomona, CA • Riverside, CA • San Bernardino, CA • San Pedro, CA • Whittier, CA • Yorba Linda, CA

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential

Electrical, Electrical General, Electrical Power Generation, Estimating, Vaults

We are So-Cal Electric Company, a division of Moras equipment & Construction, located in Whittier, CA.  We specialize in Commercial & Industrial Electrical Services such as switchgear installation, panel upgrades, transformer installation, lighting control systems, service disconnects, underground duct banks, conduit work and all voltage systems from 120V-480V, etc. Please keep in mind we hold the following certifications:   
 
MBE – Minority Business Enterprise 
DBE- Disadvantaged Business Enterprise  
Veriforce  
ISN Networld   
Golden Shovel
IBEW
Labors local 1309
Operating Engineers

Preferred Framing Corporation

Los Angeles, CA • Orange, CA • Riverside, CA • San Bernardino, CA

Specialty Contractor

Commercial, Institutional, Residential

Fiber Cement Siding, Rough Carpentry, Wood Framing

Preferred Framing Corporation  is a Specialty Contractor that serves the Jurupa Valley, CA area and specializes in Fiber Cement Siding, Rough Carpentry, Wood Framing.

gene hirao landscape architect

Irvine, CA

Architect

Commercial

Landscape Design and Engineering

gene hirao landscape architect is a Architect that serves the Irvine, CA area and specializes in Landscape Design and Engineering.

Maneki Neko

Maneki Neko is a Supplier that serves the Los Angeles, CA area and specializes in 3d Capture Scanning.

Understory LLC

Los Angeles, CA

Consultant, Engineer, Specialty Contractor

Commercial, Institutional

Architectural Wood Casework

Understory LLC is a Consultant, Engineer, Specialty Contractor that serves the Los Angeles, CA area and specializes in Architectural Wood Casework.

MK Building Materials

MK Building Materials is a Supplier that serves the Orange, CA area and specializes in Windows.

Sector Tech Inc

Fullerton, CA • Huntington Beach, CA • Long Beach, CA • Los Angeles, CA • Orange, CA • Santa Ana, CA • Santa Fe Springs, CA

Specialty Contractor, Supplier

Commercial, Healthcare

Communications

Sector Tech Inc is a Specialty Contractor, Supplier that serves the Santa Fe Springs, CA area and specializes in Communications.

Ryan Contractors Inc.

General Contractor

Commercial, Healthcare, Industrial and Energy, Infrastructure, Institutional, Residential

Our Mission is to:
To Provide Biblically Based Construction Services with Fair Pricing, Exceptional Quality and On Time Turnovers. Helping your business reach its goals.
Our philosophy: Our approach is to offer our clients a comprehensive project delivery system which reduces the risk to the owner.
Our commitment to results: Built into our process is a streamlined endeavor which intertwines the design and construction process. The end result is a delivery schedule which is reduced.
Our experience: Our Construction team is well versed in the industry and has a vast background of projects under their belts. Providing our clientele with a streamlined process, and a single individual which carries through the project from start to finish, RCI offers a comprehensive construction model which eliminates confusion in the field and in the plans.
Established in 2001, Ryan Construction has incorporated to become Ryan Contractors, Inc. (RCI) Since our founding, RCI continues to be a premier construction firm. Our goal is to provide high quality and value at a lower cost to our clients. We believe in establishing relationships with our customers. RCI builds a team around the clients needs. Whether it is a Ground Up, Tenant Improvement, Open Store Remodel or Restaurant, our team will be ready to complete your project on time, on budget and handle any challenges which may arise.

We are a California based General Contractor. In addition to California, RCI is also licensed in over 33 states across America. With more being added all the time.

RCI is defined by its people: honest, experienced, forward thinking, professional and hard working. The RCI team members form collaborative relationships with owners, architects, developers and sub-contractors.

Janitorial Companies

Orange, CA

Specialty Contractor

Commercial, Healthcare, Industrial and Energy, Institutional

Cleaning Services, Final Cleaning, Progress Cleaning

DMS Janitorial Services is a commercial janitorial company serving California for over 34 years. Based in Placentia, the company cleans corporate offices, medical facilities, schools, and auto dealerships across Orange County, Los Angeles, and Riverside, including Anaheim, Santa Ana, Irvine, and Fullerton. DMS handles office cleaning, day porter service, floor services, carpet cleaning, deep cleanups, window cleaning, post-construction cleanup, and warehouse floor scrubbing. Uniformed, background-checked staff train monthly under a 12-Month Safety and Compliance Program, with daily reports sent to facility managers. Google five-star rated and a 2025 Yelp Best of Business winner, DMS is licensed, insured, and transparent about pricing.

Looking for reliable janitorial services? DMS Janitorial Services is among the trusted janitorial companies in California, providing professional office cleaning services tailored to your needs. Contact us today to get started!

Huijue Telecom Site Energy (The Solar Telecom)

Vernon, CA

General Contractor

Commercial, Residential

Electrical Power Generation

Huijue Telecom Site Energy (The Solar Telecom) is a General Contractor that serves the Vernon, CA area and specializes in Electrical Power Generation.

Ramirez flooring services

Aliso Viejo, CA • Anaheim, CA • Brea, CA • Buena Park, CA • Costa Mesa, CA • Cypress, CA • Dana Point, CA • Fountain Valley, CA • Fullerton, CA • Garden Grove, CA • Huntington Beach, CA • Irvine, CA • La Habra, CA • La Palma, CA • Laguna Beach, CA • Laguna Hills, CA • Laguna Niguel, CA • Laguna Woods, CA • Lake Forest, CA • Los Alamitos, CA • Los Angeles, CA • Mission Viejo, CA • Newport Beach, CA • Orange, CA • Placentia, CA • Rancho Santa Margarita, CA • San Clemente, CA • San Juan Capistrano, CA • Santa Ana, CA • Seal Beach, CA • Stanton, CA • Tustin, CA • Villa Park, CA • Westminster, CA • Yorba Linda, CA

Specialty Contractor

Commercial, Healthcare, Infrastructure, Residential

Resilient Flooring, Specialty Flooring, Wood Flooring

Ramirez flooring services is a Specialty Contractor that serves the Bellflower, CA area and specializes in Resilient Flooring, Specialty Flooring, Wood Flooring.

Los Angeles Fencing Co.

Los Angeles, CA • Ontario, CA

Specialty Contractor

Commercial, Residential

Chain Link Fences and Gates, Decorative Metal Fences and Gates, Expanded Metal Fences and Gates, Fences and Gates, Temporary Fencing

Los Angeles Fencing Co. is a Specialty Contractor that serves the Ontario, CA area and specializes in Chain Link Fences and Gates, Decorative Metal Fences and Gates, Expanded Metal Fences and Gates, Fences and Gates, Temporary Fencing.

Anaheim AC Repair Pros

Anaheim, CA

General Contractor

Commercial, Residential

Heating Ventilating and Air Conditioning HVAC

Anaheim AC Repair Pros is a General Contractor that serves the Anaheim, CA area and specializes in Heating Ventilating and Air Conditioning HVAC.

Cubicle and Office Inc.

Rancho Cucamonga, CA

Supplier

Commercial

Furniture, Partitions

Cubicle and Office Inc. is a Supplier that serves the Rancho Cucamonga, CA area and specializes in Furniture, Partitions.

Halo Electric Company inc

Los Angeles, CA • Newport Beach, CA • Ontario, CA • Orange, CA • Pasadena, CA • Riverside, CA • San Bernardino, CA

Specialty Contractor

Commercial, Industrial and Energy

Electrical, Electrical General, Facility Electrical Power Generating and Storing Equipment

Halo Electric Company inc is a Specialty Contractor that serves the Orange, CA area and specializes in Electrical, Electrical General, Facility Electrical Power Generating and Storing Equipment.

Henley’s Plumbing & Air

Anaheim, CA • Bloomington, CA • Calimesa, CA • Chino, CA • Colton, CA • Eastvale, CA • Fontana, CA • Grand Terrace, CA • Highland, CA • Jurupa Valley, CA • Loma Linda, CA • Mentone, CA • Mira Loma, CA • Moreno Valley, CA • Norco, CA • Ontario, CA • Placentia, CA • Rancho Cucamonga, CA • Redlands, CA • Rialto, CA • Riverside, CA • San Bernardino, CA • Upland, CA • Yorba Linda, CA • Yucaipa, CA

General Contractor

Commercial, Residential

Heating Ventilating and Air Conditioning HVAC, Plumbing, Plumbing General

At Henley's Plumbing & Air, we take pride in being your best local expert plumber in Yorba Linda, CA, specializing in AC repair, plumbing, and HVAC services. With certified technicians and over 40 years of experience, our professional family-owned business is dedicated to providing outstanding customer service. We are committed to ensuring your satisfaction by delivering high-quality care and trusted solutions for all your air conditioning and plumbing needs. Our team is known for their expertise, reliability, and dedication to excellence, making us the go-to choice for all your HVAC and plumbing services in Yorba Linda.

Miller Blades Inc

Los Angeles, CA

General Contractor, Specialty Contractor

Commercial, Industrial and Energy, Infrastructure, Institutional, Residential

Bridges, Caissons, Demolition, Grading

Miller Blades Inc is a General Contractor, Specialty Contractor that serves the Riverside, CA area and specializes in Bridges, Caissons, Demolition, Grading.

Joe's Junk & Trash Removal

Orange, CA

Supplier

Commercial

Cleaning Services, Furniture

Joe's Junk & Trash Removal is a Supplier that serves the Orange, CA area and specializes in Cleaning Services, Furniture.

Jim Murray Roofing

Orange, CA

Specialty Contractor

Commercial, Residential

Roofing

Jim Murray Roofing is a Specialty Contractor that serves the Orange, CA area and specializes in Roofing.

RB DELTA ELECTRIC

Los Angeles, CA

General Contractor

Commercial, Residential

Electrical

From Residential Electrical Work to Commercial & Industrial Expertise, RB Delta Electric began eight years ago with residential electrical work: rewiring, panel upgrades, new construction wiring and emergency calls. That foundation grew into semi heavy commercial and industrial installations including switchgear, step up transformers, raceway and EMT conduit, general lighting and power distribution. Today, the same contractor (C-10 license # 1046368) handles homes, businesses and industrial facilities under one license, with a written scope and an honest appraisal of the work your property genuinely needs.

Source Creative Office Interiors

Source Creative Office Interiors is a Architect that serves the Irvine, CA area and specializes in Furniture.

creation grading inc

Corona, CA • Los Angeles, CA • Orange, CA • Riverside, CA

General Contractor, Specialty Contractor

Commercial, Infrastructure, Residential

Erosion and Sedimentation Controls, Excavation and Fill, Grading, Temporary Erosion and Sediment Control

creation grading inc is a General Contractor, Specialty Contractor that serves the Corona, CA area and specializes in Erosion and Sedimentation Controls, Excavation and Fill, Grading, Temporary Erosion and Sediment Control.

Arycohvac

Monrovia, CA

Specialty Contractor

Commercial, Industrial and Energy, Institutional, Residential

HVAC Air Distribution System Cleaning, HVAC General

Arycohvac is a Specialty Contractor that serves the Monrovia, CA area and specializes in HVAC Air Distribution System Cleaning, HVAC General.

Delta Fire Equipment, Inc.

San Diego, CA

Specialty Contractor

Commercial, Industrial and Energy, Institutional, Residential

Electronic Life Safety, Fire Detection and Alarm, Fire Extinguishing Systems, Fire Protection Specialties, Fire Suppression, Water Based Fire Suppression Systems

Delta Fire Equipment, Inc. is a Specialty Contractor that serves the Whittier, CA area and specializes in Electronic Life Safety, Fire Detection and Alarm, Fire Extinguishing Systems, Fire Protection Specialties, Fire Suppression, Water Based Fire Suppression Systems.

Maier International, Inc.

Alhambra, CA • Bakersfield, CA • Barstow, CA • Bellflower, CA • Beverly Hills, CA • Burbank, CA • Chatsworth, CA • Compton, CA • Downey, CA • El Monte, CA • Glendale, CA • Inglewood, CA • Lancaster, CA • Long Beach, CA • Los Angeles, CA • Montebello, CA • Norwalk, CA • Orange, CA • Pasadena, CA • Pomona, CA • Riverside, CA • San Bernardino, CA • San Diego, CA • San Fernando, CA • Santa Barbara, CA • Santa Maria, CA • Santa Monica, CA • Thousand Oaks, CA • Torrance, CA • Van Nuys, CA • Ventura, CA • Whittier, CA

General Contractor, Specialty Contractor

Commercial, Industrial and Energy, Institutional

Abatement and Remediation, Asbestos Abatement and Remediation, Biohazard Abatement and Remediation, Cleaning Services, Flooring Treatment, General Construction Management, Lead Abatement and Remediation, Specialty Flooring, Water Abatement and Remediation

Maier International is a fully-licensed emergency response and restoration company specializing in remediation and build backs with accounts throughout Southern California.

Services include: mitigation, project management, asbestos/lead/mold abatement, restoration, debris removal & demolition, moisture control, microbial remediation and a host of drying techniques for structural, hardwood floor and many other unique situations.

We are the preferred remediation contractor for the Judicial Council of California in courthouses throughout Southern California, and have completed projects in numerous school districts.

RELM

Los Angeles, CA

Consultant

Commercial

Landscape Design and Engineering

RELM is a Consultant that serves the Los Angeles, CA area and specializes in Landscape Design and Engineering.

Contractors in Diamond Bar, CA

25,760 Results within

25 miles

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Onboard Coworking

OC Grab Bars - Shower & Bathroom Grab Bar Installation

ISD

Intertek Building & Construction

Hicks Plumbing Company LLC

California United Plumbing

Paci Structures

ECAM Technologies Corp.

Penscott Electric Inc.

Sharony HVAC Services

DVI ceiling T-bar Solutions

Digicom-USA

Golden Scaffold

Power Plus

So-Cal Electric Inc.

Preferred Framing Corporation

gene hirao landscape architect

Maneki Neko

Understory LLC

MK Building Materials

Sector Tech Inc

Ryan Contractors Inc.

Janitorial Companies

Huijue Telecom Site Energy (The Solar Telecom)

Ramirez flooring services

Los Angeles Fencing Co.

Anaheim AC Repair Pros

Cubicle and Office Inc.

Halo Electric Company inc

Henley’s Plumbing & Air

Miller Blades Inc

Joe's Junk & Trash Removal

Jim Murray Roofing

RB DELTA ELECTRIC

Source Creative Office Interiors

creation grading inc

Arycohvac

Delta Fire Equipment, Inc.

Maier International, Inc.

RELM

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

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

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

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

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

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

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