11,956 Ontario, CA General Contractors

If you're on the brink of a large home improvement project, remodel or new build, you'll likely want to hire a general contractor. These professionals manage all aspects of the job to ensure it's completed on schedule and to your satisfaction. Whether you’re looking for Ontario, CA building contractors for a new construction, or home improvement contractors to spruce up your existing place, it’s important to know exactly what role they will play in the project. Read more below for a list of must-ask questions. More 
SoCal Contractor (310) 774-6498
LOS ANGELES, CA, 90034
43 miles from Ontario
SoCal Contractor is a one stop shop for interior design, construction and remodeling of residential, hospitality and commercial interiors, exteriors, landscape and interior... Read More
At RL Pruitt Construction, we can turn your dreams into reality. RL Pruitt Construction takes great pride in every home we build, with each experience being genuine and unique.
Redondo Beach, CA, 90278
44 miles from Ontario
LuAnn is a licensed General Contractor, fully bonded and insured. With her team of like-minded sub-contractors, she is dedicated to making each client's dream home a reality --... Read More
Pasadena, CA, 91105
30 miles from Ontario
We are a full service design/construction company. One stop shop. Plans, Construction, and Interior Design. Specialize in very high quality work with one on one service. Read More
Burbank, CA, 91505
41 miles from Ontario
Beyond our passionate role as cabinetmakers, Keystone Cabinetry Inc offers thoughtful kitchen design to preserve style, while adding modern day functionality & ergonomics.... Read More
Newport Beach, CA, 92660
33 miles from Ontario
Design Build Firm specializing in high end custom homes. Read More
Long Beach, CA, 90814
35 miles from Ontario
Design / Build ∙ Room Additions ∙ Kitchens ∙ Bathrooms ∙ New Construction ∙ Home Performance Harding Construction & Sustainable Solutions specializes in custom home building... Read More
Globus Builder (818) 266-5655
North Hollywood, CA, 91606
43 miles from Ontario
GLOBUS Builders, Inc. was established with one principle: we don't stop building until the customer is 100% satisfied. This motto has served us well over the years, as our... Read More
La Canada, CA, 91011
34 miles from Ontario
Chelsea Construction is a full service design and construction company, specializing in luxury home remodels and custom homes. In addition to custom home building and design, we... Read More
Los Angeles, CA, 91316
50 miles from Ontario
S O D Builders Inc. is a full service construction company which provides a wide range of construction and remodeling solutions for residential, commercial and industrial projects... Read More
Irvine, CA, 92620
26 miles from Ontario
we are a full service Commercial and Residential General Contractor, We are committed to quality. We complete each project right the first time. Whether you are considering new... Read More
Los Angeles, CA, 90065
34 miles from Ontario
Full service custom home renovations, remodels, and additions. Design to Completion. Read More
TNT Simmonds (818) 985-4868
Van Nuys, CA, 91406
49 miles from Ontario
TNT Simmonds is one of Southern California's premier construction firms, specializing in both remodeling and new building construction. Committed to the old-world values of... Read More
Los Angeles, CA, 90048
42 miles from Ontario
We specialize in Remodeling Construction and transforming existing residences into beautiful, new living spaces. Whether you need interior renovation, outdoor/patio construction... Read More
Claremont, CA, 91711
5 miles from Ontario
At Lotus Construction Group it is our mission to provide a unique remodeling experience imbued with a commitment to professionalism and master craftsmanship, based on... Read More
Encino, CA, 91316
50 miles from Ontario
Fidelity general contractors Inc. Is a design-oriented, general contracting firm specializing in residential projects in the Los angeles county and the surrounding area. We... Read More
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What Is a General Contractor?


General, or construction contractors, are often known as project managers. They oversee the entire remodeling or new home construction project and facilitate all day-to-day tasks that move it toward completion. A general building contractor will work with your architect to review plan as you build a house and ensure everything is in place before work is started, as well as arrange for permits and necessary inspections. While good local home improvement contractors will have the skills to handle certain tasks onsite, such as carpentry, he or she is also responsible for hiring subcontractors for the majority of jobs, such as electrical work, painting or plumbing. In addition, the general contractor should be on-site regularly to inspect the progress and resolve issues.

Home remodeling contractors are a must for successful completion of a renovation. Because of this, it's essential that you do your homework before deciding on the right Ontario, CA general contractor as you remodel or build a house. Inspect bids carefully. Was it ready when the contractor promised it? Was the bid for building a home unusually high or low? Each of these things can be very telling: A late bid may reflect timing standards, and an off-the-mark bid could be code for a pricey premium or a deliberate underbid to score the remodeling job. You should call references, carefully read reviews and visit Ontario, CA completed projects to see if they’re what you expect for your job. Once you do secure your local contractors, read the contract very carefully to be sure everyone is on the same page.

Questions to ask prospective general contractors:


  • How long have you been in the business?
  • How many projects like mine have you completed?
  • Who will be working on the project?
  • What qualities do you look for in your subcontractors?
  • Can you provide me with references?
  • Are you licensed and insured?
  • How do you charge, and what does that include?
  • What happens when costs exceed budget, whether due to materials or labor pricing changes? What about changes made by the client or by the professionals — what kinds of situations would cause those costs to be incurred?
  • Can you give me a written estimate?
  • What do your services include?
  • When can your job get done?
  • What will I need to provide?
  • Are there any important considerations or concerns you foresee with this project?


Find a general building contractor on Houzz. Narrow your search in the Professionals section of the website to Ontario, CA home contractors. You can also search for Ontario, CA photos and contact the general contractor who worked on the project.
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