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TRUSTED BY DIAMOND BAR, CA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon2.2k+
    Verified subcontracting services reviews

Top-Rated Subcontractors in Diamond Bar - Updated Nov 2026

Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.7(
42
)
Major Home Repairs (General Contractor)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"We found McCormick home builders through Angie’s list. They were not one of our original contacts, but they contacted us and came out to give us a quote. Matteo was extremely helpful, informative, honest, and gave us reasonable realistic prices, and did not try to inflate the prices or pressure us in anyway. We felt very comfortable with him immediately. We felt like he was a member of the family that we could just talk to and ask questions he was very personable. He gave us his contact number in case we had other questions and he was always available when we needed him for any type of questions or concerns. Mateo‘s team did a beautiful job. They were fast. They were efficient. They cleaned up beautifully. They did a wonderful job. They were very considerate of our time our needs and our neighbors. They were an absolute pleasure to work with. I would highly recommend Matteo from McCormick home builders for any home building projects, and we will be calling him again in the future!"
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+1

Response time6 hrs
Recommended by17%of homeowners
Avatar for YB Builders Group Inc.
YB Builders Group Inc.
5.0(
14
)
Major Home Repairs (General Contractor)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"We hired Ben and his team to do a full remodel of a 1940 bungalow in Burbank. Immediately upon meeting Ben I knew I wanted to work with him - he clearly has the intelligence, experience, and taste I was looking for, with excellent problem-solving and communication skills. Surprises arise during construction, but Ben was always direct and communicative. When a problem arose, he explained the situation, offered multiple solutions and the costs/tradeoffs of each, and we agreed together on the best course of action. The craftsmanship is wonderful, and even after the house was finished, he remained available for questions. Our house isn't a multimillion dollar compound, but Ben and his team treated it like one within our budget. Our remodel had a lot of ups and downs, but through it all he was a great guy and I'm happy to call him a friend even years after the work is done. Highly recommend!"
Bathroom Remodel
Master bathroom
Master bathroom
Master bedroom
Kitchen Remodel

+74

51 neighbors recently requested a quote
Avatar for Jorcast Enterprises, Inc.
Jorcast Enterprises, Inc.
4.7(
13
)
Major Home Repairs (General Contractor)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 1988

Free estimates

Credit card accepted

"Jorge and A-Right Builders were very professional and upfront throughout the whole process. They have very competitive pricing and provide a great finished product. I would recommend them to friends and family and use them again myself in the future."
Kitchen Remodel
Accent wall
Response time2 days
Recommended by90%of homeowners
Avatar for McGee Construction
McGee Construction
4.6(
14
)
Major Home Repairs (General Contractor)

Serving Diamond Bar, CA and surrounding areas

Approved

Super Service Award Winner

In business since 1990

Free estimates

Offers commercial services

"Our experience with McGee construction was truly awesome! All of their work was strategically planned so when one process was completed, the next set of workers were scheduled back to back. The workers they have are courteous, clean, and respectful. Arrived on time and didtheir job professionally. Cade went above and beyond by being here to check on workers and the job done daily. We would definitely use them again."
Shower Remodel - Long Beach
Heather Home Remodel
Heather Remodel
Rolling Green Remodel
Zucker Home remodel

+61

9 neighbors recently requested a quote
Recommended by69%of homeowners
Home Pro Remodeling & Construction, Inc.
4.1(
31
)
Major Home Repairs (General Contractor)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Our roof was in bad shape and we needed to have it replaced. I had gotten estimates and decided to go with Home Pro Remodeling. Emil and Brian were our contact people for the project. Emil was very professional and paid attention to our concerns. He worked with us through the entire project to our complete satisfaction. Brian is extremely courteous and helpful as well! The project went very smoothly, was completed before the initial project end date, and the results were beyond our expectations. The job turned our beautifully! Our new roof looks FANTASTIC! Our neighbors have commented to us how great it looks. We are very pleased with our experience with Home Pro Remodeling and would definitely recommend them."
Response time5 days
Recommended by77%of homeowners
Avatar for Saris Building
Saris Building
5.0(
5
)
Major Home Repairs (General Contractor)

Serving Diamond Bar, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Saris Building is a family-run general contracting business serving homeowners and property owners throughout the Los Angeles area. We offer new home construction, home additions, ADUs, garage conversions, and kitchen and bathroom remodeling.\n\nWe work closely with our clients, focusing on clear communication, detailed estimates, and quality workmanship. From home improvements to complete builds, we take pride in treating your property with care and keeping you informed throughout the job.\n\nContact us to discuss your project and how we can help bring it to life.

Construct an Office Wall
Avatar for NEW LIFE CONSTRUCTION
NEW LIFE CONSTRUCTION
5.0(
5
)
Major Home Repairs (General Contractor)

Serving Diamond Bar, CA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"They were very professional and prompt in getting back to us. They were very detailed oriented. He got the job done on time and they did a very good job. He had a good ethics, and he was very trustworthy. They were easy to work with and had a good design."
Powder room remodel
Powder room remodel
Powder room remodel
Powder room remodel
Powder room remodel

+7

Response time2 days
Recommended by100%of homeowners
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Subcontractors FAQs, answered by experts

Most towns and cities have regulations regarding sign dimensions for businesses. If you're opening a new business, contact the town or city's local zoning board to see the specifications you need to follow when getting your sign created. There may also be rules regarding how high your sign can sit. Be sure to learn about specifications before having your sign made. Sign companies generally won't offer refunds once custom signs have been fabricated.

While it’s never too early to start planning for a major home improvement project like a home addition, give yourself at least a month or two to plan and design your addition, find a contractor, and get the permits in order. For larger projects like a second-story addition that require designing with an architect, plan on three to four months of preparation.

Yes, integrating sustainable practices and energy efficiency into plans is common.

You can draw your own house plans using three-dimensional modeling software, but in most cases, you’ll need an architect to draw up the final plans. Architects understand local building regulations and requirements, so their plans will be necessary for getting permits approved, and they’ll also ensure your home is structurally sound. DIY house plans can be a good place to start to help visualize your project, but you should always defer to a professional before trying to proceed with the project.

Professionals optimize layouts, improve energy efficiency, and ensure structural safety and compliance.

The Diamond Bar, CA homeowners’ guide to subcontracting services

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