Show me search results for:

You can change this selection at any time via the Accredited Business toggle on the search results page.

We use cookies to give users the best content and online experience. By clicking “Accept All Cookies”, you agree to allow us to use all cookies. Visit our Privacy Policy to learn more.

Cookie Preferences

Many websites use cookies or similar tools to store information on your browser or device. We use cookies on BBB websites to remember your preferences, improve website performance and enhance user experience, and to recommend content we believe will be most relevant to you. Most cookies collect anonymous information such as how users arrive at and use the website. Some cookies are necessary to allow the website to function properly, but you may choose to not allow other types of cookies below.

Necessary Cookies

What are necessary cookies?
These cookies are necessary for the site to function and cannot be switched off in our systems. They are usually only set in response to actions made by you that amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. You can set your browser to block or alert you about these cookies, but some parts of the site will not work. These cookies do not store any personally identifiable information.

Necessary cookies must always be enabled.

Functional Cookies

What are functional cookies?
These cookies enable the site to provide enhanced functionality and personalization. They may be set by us or by third party providers whose services we have added to our pages. If you do not allow these cookies, some or all of these services may not function properly.

Performance Cookies

What are performance cookies?
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.

Marketing Cookies

What are marketing cookies?
These cookies may be set through our site by our advertising partners. They may be used by those companies to build a profile of your interests and show you relevant content on other sites. They do not store personal information directly, but are based on uniquely identifying your browser or device. If you do not allow these cookies, you will experience less targeted advertising.
Better Business Bureau®
Resources for Businesses
Better Business Bureau
          Category: Mechanical Contractors

          Showing: 785 results for Mechanical Contractors
          near Diamond Bar, CA

          Filter by

          Service Area

          Filter by

          Distance
          Categories
          BBB Rating
          State/Province
          Get Connected
          Sort By
          • Distance
          • Rating

          Spicer Mechanical Inc

          Mechanical Contractors

          BBB Rating: A+
          not BBB accredited
          (714) 279-9100

          480 Apollo St. Unit E,
          Brea, CA 92821-3121

          Air Med Heating & Air Conditioning, Inc.

          Air Conditioning Contractors, Heating and Air Conditioning, Heating Contractors ...

          BBB Rating: A+
          Service Area

          Serving the following areas:

          • Los Angeles County, CA
          • Orange County, CA
          • Adelanto, CA
          • Aguanga, CA
          • Amboy, CA
          • Angelus Oaks, CA
          • Anza, CA
          • Apple Valley, CA
          • Baker, CA
          • Banning, CA
          • Barstow, CA
          • Beaumont, CA
          • Big Bear City, CA
          • Big Bear Lake, CA
          • Bloomington, CA
          • Blue Jay, CA
          • Blythe, CA
          • Bryn Mawr, CA
          • Cabazon, CA
          • Calimesa, CA
          Accredited BusinessAccredited Business
          (909) 364-9833

          Chino Hills, CA 91709-2915

          Get a Quote

          K Mechanical Service

          Mechanical Contractors

          BBB Rating: A+
          not BBB accredited
          (501) 658-0172

          6450 Lincoln Ave #102,
          Buena Park, CA 90620

          Tony's Lock & Safe

          Mechanical Contractors

          not BBB accredited
          (951) 966-7218

          13465 Huntington St,
          Fontana, CA 92336-3911

          BS2 Building Services

          Remodel Contractors, General Contractor, Painting Contractors ...

          BBB Rating: A+
          Service Area

          Serving the following areas:

          • Los Angeles County, CA
          • Orange County, CA
          • Riverside County, CA
          • San Bernardino County, CA
          not BBB accredited
          (714) 588-3408

          12534 Valley View St Ste 172,
          Garden Grove, CA 92845-2006

          Blotti & Sons

          Mechanical Contractors

          not BBB accredited
          (714) 917-7674

          15452 Assemply Ln,
          Huntington Beach, CA 92649

          California Machinery Movers

          Mechanical Contractors

          BBB Rating: A+
          not BBB accredited
          (213) 388-9899

          2021 1/2 Colorado Blvd,
          Los Angeles, CA 90041

          DNA Mechanical

          Heating and Air Conditioning, Mechanical Contractors

          BBB Rating: A+
          not BBB accredited
          (951) 271-0284

          6642 Montclair Dr,
          Riverside, CA 92504

          Mechanical Seal Repair

          Mechanical Contractors, Wholesale General Merchandise

          BBB Rating: A+
          Accredited BusinessAccredited Business
          (562) 427-2221

          3188 Orange Ave,
          Signal Hill, CA 90755-5220

          Get a Quote

          Neighborhood Car Care

          Mechanical Contractors, Auto Repairs

          BBB Rating: C+
          not BBB accredited
          (949) 707-5991

          23761 Via Fabricante Ste A,
          Mission Viejo, CA 92691-3150

          Holistic Heat Pump HVAC Retrofits Inc.

          Mechanical Contractors

          BBB Rating: A
          not BBB accredited
          (310) 657-7867

          8948 Santa Monica Blvd,
          West Hollywood, CA 90069-4902

          El Tunas Mobile Mechanic

          Mechanical Contractors

          BBB Rating: D+
          not BBB accredited
          (818) 448-4589

          7947 Lankershim Blvd,
          North Hollywood, CA 91605

          Franklin Mechanical Systems, Inc.

          Mechanical Contractors, Heating and Air Conditioning, Air Conditioning Contractors ...

          BBB Rating: A+
          Service Area

          Serving the following areas:

          • 92223
          not BBB accredited
          (951) 845-1000

          185 W 4th St,
          Beaumont, CA 92223-2607

          Patriot Air Systems, Inc.

          Air Conditioning Contractors, Air Conditioning Repair, Mechanical Contractors ...

          Service Area

          Serving the following areas:

          • Los Angeles County, CA
          • Ventura County, CA
          not BBB accredited
          (805) 383-1776

          5251 Verdugo Way Suite H,
          Camarillo, CA 93012

          Kinetic Machinery

          Pumping Contractors, Mechanical Contractors

          not BBB accredited
          (805) 630-9284

          Camarillo, CA 93010

          Related Categories

          Accreditation and Ratings Overview

          Accredited BusinessAccredited Business

          Select businesses earn BBB Accreditation by undergoing a thorough evaluation and upholding the BBB Accreditation Standards.

          A+

          BBB assigns ratings from A+ (highest) to F (lowest). In some cases, BBB will not rate the business (indicated by an NR, or "No Rating") for reasons that include insufficient information about a business or ongoing review/update of the business's file.

          Didn't find the business you were looking for?

          If the business you're looking for isn't in our directory, submit a request to have it added.