Top-Rated General Contractors Near You in Ontario, OR

Cardin Construction

Cardin Construction prides itself on being the go-to choice for clients looking for Remodeling, Window Installation and Door Installation services.

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Concrete Protection Systems West, Inc

Concrete Protection Systems West, Inc. specializes in epoxies, coatings, polishing, and staining. Our trained professionals have successfully served the needs of the industry for over 26 years, and we take pride in installing the highest quality systems available in today’s market.

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Avaland Contractors

General Contractor in Ontario, CA!

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B. Chacon Associates, Inc.

At B. Chacon Associates, Inc. we offer a system where you can manage your business on a daily basis, aptly named :cloud accounting. Our system allows you to work on all your accounting needs; receivables, payables, financial statements and all other necessary reports while, in the background, we reconcile, balance and prepare the financial statements.

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Bethesda Home Innovations
DM Gorder Construction

General Contracting Services specializing in bathroom and kitchen remodels. Offer assistance in material selection and interior design services

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Empower building company
Guard Insulation & Cleanup

Ontario has been known to have a cold spell now and again. When it does, you certainly don't want to be caught off guard. That's where an experienced insulation company like Guard Insulation & Cleanup comes in. We are licensed and insured and have been proudly serving the Ontario area including Rancho Cucamonga, Chino, Claremont, La Verne, Pomona, San Dimas and Glendora. We expertly install attic insulation to prevent the cold air in your attic from seeping down into the living areas of your home while also

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HANDYMAN PROS ONTARIO CA

We’ve been in operation in Ontario forever and we’ve seen it all. From character homes in North Ontario, to brand new homes on the south side, there’s really nothing that we aren’t familiar with. Our team of service experts are trained and formally educated in a variety of concentrations, meaning we always have a specialist on staff. Knowing what to do, when to do it and how to do it perfectly is our forte. We don’t believe in putting our clients at risk or monopolizing their time. Whether you’re looking to

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Home Masters International

You've got ideas, and we can help! Home Masters International is a one-stop shop for your remodeling needs. We specialize in custom home building, kitchen remodeling, bathroom remodeling, flooring, counter tops, room additions, interior & exterior painting, stucco, plumbing, and electrical. Visit our Yelp page to read more reviews: http://www.yelp.com/biz/home-masters-intl-ontario

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General Contractor FAQs

A general contractor oversees construction projects, managing all aspects from start to finish. This includes coordinating subcontractors, sourcing materials, ensuring codes and regulations are met, and ensuring the project stays on budget and on schedule. They often handle residential renovations, new home builds, and larger commercial projects. Hiring a general contractor ensures expert supervision and streamlines communication, helping ensure the job is completed efficiently and professionally.

The cost of hiring general contractors can vary widely depending on the scale of the project. On average:

  • Bathroom renovation: $10,000–$25,000
  • Kitchen remodeling: $15,000–$50,000
  • Home additions: $30,000–$150,000
  • Building a new home: $150,000–$500,000+

Keep in mind these ranges are approximate and subject to factors like location, materials, and complexity of the project. It's always advisable to get detailed estimates from multiple contractors to compare pricing and services.

Finding licensed general contractors in Ontario involves several reliable methods:

  • Online directories: Use platforms like HomeAdvisor or Angie's List.
  • Local building departments: Contact your city or county building department for lists of licensed professionals.
  • Referrals: Ask friends, family, or neighbors for recommendations.

Make sure to verify their license through a trusted authority, such as your state’s licensing board or local contractor registry. Hiring licensed professionals ensures compliance with codes and regulations.

Here are key questions to ask when speaking with general contractors:

  1. Are you licensed and insured?
  2. Can you provide references or examples of past work?
  3. What’s your timeline for this project?
  4. Will you handle permits and inspections?
  5. Do you offer a warranty on your work?

These questions help assess their qualifications, experience, and reliability. Be thorough in your evaluation, as this can prevent issues down the road.

To avoid scams, follow these guidelines:

  • Verify licenses: Confirm the contractor holds current licensing from a trusted authority, such as your state’s licensing board.
  • Get contracts in writing: Never agree to verbal deals.
  • Avoid large upfront payments: Legitimate contractors follow payment schedules tied to milestones.
  • Check references: Speak directly to past clients about their experiences.
  • Trust your instincts: If something feels off, or the contractor is overly pushy, reconsider.

Taking these precautions helps ensure you hire a reputable professional for your project.

Contractor estimates typically factor in:

  • Material costs: Quality and quantity of materials required.
  • Labor charges: Skilled labor fees, including subcontractors.
  • Project complexity: Scope, design details, and unique challenges.
  • Permitting fees: Costs for pulling necessary permits from the relevant authorities.
  • Timeline: Longer projects may have higher labor costs.

Always request itemized estimates and clarify what’s included, so you can make informed comparisons across contractors.

Project timelines depend on the scope and type of work. Here are general estimates:

  • Small renovations (e.g., bathroom remodels): 4–8 weeks
  • Medium renovations (e.g., kitchen remodels): 8–12 weeks
  • Home additions: 3–6 months
  • New home construction: 6–12+ months

Factors like availability of materials, weather, and contractor schedules can impact timelines. Discuss expected completion dates and potential delays upfront to minimize surprises.

General contractors should hold proper licensing from state or local authorities, depending on their location. Licensing ensures they meet local building codes and safety standards. Many states also require insurance for liability and workers’ compensation. For additional credibility, contractors may pursue certifications like LEED accreditation for sustainable construction or CGP (Certified Green Professional) credentials. Learn more about requirements from trusted resources like National Association of Home Builders.

To set realistic expectations, consider:

  • Budget: Factor in local material and labor costs specific to Ontario.
  • Timeline: Account for weather conditions and permit processing times in your area.
  • Scope: Be clear and detailed about your project goals upfront.
  • Communication: Have regular check-ins with your contractor to stay updated.

Remember, unforeseen issues may arise, so flexibility is key. Working closely with a licensed contractor experienced in Ontario can help ensure smoother project execution.

Signs of a reputable contractor include:

  • Strong reviews: Positive customer feedback on platforms like Google, Yelp, or industry websites.
  • Transparent communication: Clear responses to questions about licenses, scheduling, and pricing.
  • References: Willingness to provide references from past clients.
  • Detailed contracts: Well-written agreements outlining scope, costs, and timelines.
  • Longevity: Years of experience in the industry often indicate reliability.

Always perform thorough research before signing a contract to confirm the contractor’s reputation and credentials.

Reviews for General Contractors

Basement Rescue in Days
Our basement flooded after a big storm, and I was overwhelmed at the thought of repairs. Within 24 hours of posting my issue, I had quotes from three experienced contractors. The one I hired tackled everything in less than a week, and it came in under budget. Feels great to have my space (and sanity) restored.
Emily R.
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Fast Fix, Big Savings
My deck was dangerously unstable, and I dreaded the cost of a full rebuild. The contractor I found through this service reinforced everything for a fraction of the replacement estimate! Now it's safe for family cookouts, and I saved over $2,000.
Paul H.
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A New Look, Stress-Free
Our living room remodel was stuck because I couldn’t find the right pro I could trust in Pittsburgh. This platform connected me with a general contractor who worked around my schedule and finished the job early. The best part? No hassles, and I finally enjoy coming home to a space that feels like 'me'.
Kim S.
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Maria VierraEditor

Maria Vierra is the lead designer at Vierra Fine Homes, bringing over two decades of experience in high-end residential design and construction. Her expertise and attention to detail ensure every project meets the highest standards of excellence, blending functionality with aesthetic appeal.

Brett Taylor avatar

Brett TaylorAuthor

Brett Taylor is the co-founder of The Builder Market and a visionary entrepreneur in the home services and construction industries. With a passion for innovation, Brett has played a pivotal role in revolutionizing how professionals and homeowners connect and collaborate.

This page was last updated on Dec 5, 2025, 5:16:43 PM