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    Average homeowner rating
  • Verified reviews icon54
    Verified contractor services reviews

Top-Rated Contractors in Ontario - Updated Nov 2026

Avatar for KN Remodeling & Supplies Inc
KN Remodeling & Supplies Inc
4.8(
63
)
Major Home Repairs (General Contractor)

Serving Ontario, CA and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"The KN Remodeling team did an excellent job at our home completely remodeling 3 bathrooms, painting our entire home and rebuilding a huge planter outside. We trusted them in our home while we are out of town almost the entire time. We hired them back to do additional work in our home that they did quickly and expertly. The team was professional, very friendly, worked quickly, quietly, cleanly, and I would highly recommend them."
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+48

Response time8 hrs
Response rate100%
5 neighbors recently requested a quote
Avatar for YB Builders Group Inc.
YB Builders Group Inc.
5.0(
13
)
Major Home Repairs (General Contractor)

Serving Ontario, CA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Stop your search now, you've found the contractor you should go with, you will not be disappointed! This is the second project I've had Ben and his team do at my house and they knocked it out of the park again. This time around they remodeled two bathrooms and put in a new hall closet. They were rock stars throughout the entire project. There wasn't a single time that any reasonable request I made was denied. This was a huge load off my shoulders when dealing with such permanent decisions that comes with bathroom remodels. They were very patient and understanding as I ran into several supply issues that were out of my control during the project as well. It's very obvious that he's had years of experience with construction. His attention to detail and his forethought allowed my wife and I to rest easy knowing that they would always be able to bring up potential issues as well as offer us solutions to issues that we were going to run into many steps down the line."
Bathroom Remodel
Master bathroom
Master bathroom
Master bedroom
Kitchen Remodel

+74

52 neighbors recently requested a quote
Avatar for So Cal Builders & Design Inc
So Cal Builders & Design Inc
4.6(
310
)
Major Home Repairs (General Contractor)

Serving Ontario, CA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1982

Free estimates

Warranties offered

"My boyfriend and I hired Natali after meeting with 4 other contractors. She offered us the best price and she was the most professional and knowledgeable. SoCal builders installed hardwood floors throughout, fully remodeled 3 baths and a full paint job. We then decided to retile the kitchen. Everything looks fantastic, we will use them again no doubt for future projects. Natali was very flexible and accommodating and her crew is very nice as well."
Completely renovating both the guest and master bathrooms. In the master bathroom, we're installing a spacious walk-in shower featuring dual black-finished shower heads, elegant floating benches, and marble wall tiles. Meanwhile, the guest bathroom will have a sleek built-in tub and stylish hexagon tiles.
This project involved adding a new master bathroom to the existing house. The shower features sleek white subway tiles complemented by striking black fixtures and shower door hardware. The bathroom floor is adorned with elegant white marble tiles, providing a seamless and luxurious finish. A white shaker vanity topped with a white marble countertop completes the space, creating a clean and sophisticated look.
Experience a whole new level of indoor-outdoor living with the Torres Residence Backyard Remodel. This project highlights the addition of a kitchen sliding door, seamlessly merging your interior and exterior spaces
We remodeled the current kitchen, incorporating the addition of a new sliding door to establish a seamless indoor-outdoor living area
New pool with Baja bench and spa. New pavers, aluminum patio cover and built-in BBQ in the backyard

+563

42 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Richard Saenz
Richard Saenz
4.9(
31
)
Major Home Repairs (General Contractor)

Serving Ontario, CA and surrounding areas

Approved

In business since 1980

Free estimates

Warranties offered

"3-D Remodeling, run by Richard Saenz and his crew is an amazing business. They are professional and courteous. They do what they say they are going to do and can make adjustments along the way. I would hire them again."
Response time5 hrs
18 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Skyline Konstruction
Skyline Konstruction
4.9(
11
)
Major Home Repairs (General Contractor)

Serving Ontario, CA and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"Skyline construction did an excellent job. Juan Munoz was a great contractor. We wanted to build an ADU but didn’t know who to trust. The workers were neat and careful. Every worker treated us with respect and we’re very friendly. I would highly recommend them to any of my friends or family."
Restroom
Home remodel
Laundry
Home remodel
Laundry

+93

Response time2 days
Response rate100%
9 neighbors recently requested a quote
Avatar for J Mark Enterprises Inc
J Mark Enterprises Inc
5.0(
6
)
Major Home Repairs (General Contractor)

Serving Ontario, CA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"JMark Enterprises exceeded every expectation. From the first consultation to the final walkthrough, the team was professional, communicative, and genuinely invested in getting the details right. The craftsmanship speaks for itself?clean, quality work delivered on schedule and on budget. They treated my home like it was their own and made the whole process stress-free. I wouldn't hesitate to recommend them to friends and family, and they'll be my first call for any future projects. Highly recommend!"
Bathroom Remodel 1
Bathroom Remodel 1
Bathroom Remodel 1
Bathroom Remodel 1
Bathroom Remodel 1

+6

Response time9 hrs
Response rate93%
Avatar for Jorcast Enterprises, Inc.
Jorcast Enterprises, Inc.
4.7(
13
)
Major Home Repairs (General Contractor)

Serving Ontario, CA and surrounding areas

Approved

In business since 1988

Free estimates

Credit card accepted

"great contractor , both George and his brother Andy were on top of everything. Always quick to return phone calls and kept me informed all the time, I cant say enough good things about them . If you hire them you wont be disappointed. they kept the job site clean at all times."
Kitchen Remodel
Accent wall
Response time2 days
Recommended by90%of homeowners
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Unfinished Carpentry FAQs, answered by experts

For a professional carpenter, installing a window seat can take anywhere from a few hours to a few days, depending on some aspects of the project. Aside from building the seat itself, if they have to remove any cabinets, shelves, or baseboards, that will add time to the project.

Bow windows need support because they are large and extend out from the exterior wall of the home. Bow windows may extend 1 foot to several feet from the outside of the home, so you’ll need to provide additional support to handle this weight. A window contractor will be able to provide the proper amount of support for your new bow window.

Carpenters are trained to take on a wide range of home projects. You can hire a carpenter to do framing, roofing, build custom furniture, and make significant upgrades to your home. General carpenters are usually able to handle most jobs. However, you may also choose to hire a carpenter who specializes in a specific type of carpentry. 

Building involves setting foundation posts, framing with durable wood, adding roofing support, and protecting from elements with water-resistant finishes.

When deciding whether to use nails or screws for framing, the specific needs of the project must be taken into account. Nails have long been the go-to option for framing due to their affordability, ease of installation, and ability to withstand shear forces. They are perfect for structural framing projects where fast assembly is essential. In contrast, screws offer exceptional holding power and are particularly useful in situations requiring increased strength and resistance to pull-out forces. For projects that prioritize accuracy and long-lasting quality, screws may be the preferred option, though nails remain a dependable and efficient choice.

The Ontario, CA homeowners’ guide to contractor services

From average costs to expert advice, get all the answers you need to get your job done.