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Find Basement remodelers in Diamond Bar

Gima Construction

5.00(
2
)
•Approved Pro

Gima Construction

5.00(
2
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

We're a locally owned and operated company that values honesty, integrity and treats your home as if it were our own. We offer a variety of general Contractor home improvement services that are customizable to each individual project. We specialize in additions and kitchen remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"No comments."

Leonard H on September 2020

We're a locally owned and operated company that values honesty, integrity and treats your home as if it were our own. We offer a variety of general Contractor home improvement services that are customizable to each individual project. We specialize in additions and kitchen remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"No comments."

Leonard H on September 2020

Avatar for LEV Buildzoom, Inc.

LEV Buildzoom, Inc.

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

LEV Buildzoom, Inc.

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
6 years of experience
Free onsite estimate

LEV Buildzoom, Inc. is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work.LEV Buildzoom, Inc. is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

LEV Buildzoom, Inc. is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work.LEV Buildzoom, Inc. is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

Avatar for HIC Builders, Inc.

HIC Builders, Inc.

5.00(
11
)
•Approved Pro

HIC Builders, Inc.

5.00(
11
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
912 local quotes requested

HIC ( Home Ideas and Construction ) is a Family owned Business we are construction company. We look forward to coming out to your home and exploring the best, most efficient and budget conscious way we can upgrade you home. Specialize in Remodeling kitchens, bathrooms, pavers, outdoor landscape, patio enclosures, painting and ADU's to garage conversion from blueprinting to city permits we can walk you thru . We know that you are putting your faith and trust in your contractor, we work hard to earn your trust and satisfaction. Our team of experts offers you the latest modern and eco-friendly, materials and aesthetic work that you can imagine.

"ADU construction Plumbing, electrical, drywall, Painting"

Elbia M on February 2025

HIC ( Home Ideas and Construction ) is a Family owned Business we are construction company. We look forward to coming out to your home and exploring the best, most efficient and budget conscious way we can upgrade you home. Specialize in Remodeling kitchens, bathrooms, pavers, outdoor landscape, patio enclosures, painting and ADU's to garage conversion from blueprinting to city permits we can walk you thru . We know that you are putting your faith and trust in your contractor, we work hard to earn your trust and satisfaction. Our team of experts offers you the latest modern and eco-friendly, materials and aesthetic work that you can imagine.

"ADU construction Plumbing, electrical, drywall, Painting"

Elbia M on February 2025

Avatar for Josue E Guevara

Josue E Guevara

4.61(
28
)
•Approved Pro

Josue E Guevara

4.61(
28
)
•Approved Pro
Super Service Award
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
23 local quotes requested

General Contractor specializing in interior and exterior remodeling . We focus on quality work above all, contact owner operator Josue for an estimate today! 310-984-9456

"Did not show up twice when he was supposed to and when I reach out to find out why, he ignored my text and phone call. "

Virginia C on November 2025

General Contractor specializing in interior and exterior remodeling . We focus on quality work above all, contact owner operator Josue for an estimate today! 310-984-9456

"Did not show up twice when he was supposed to and when I reach out to find out why, he ignored my text and phone call. "

Virginia C on November 2025

Avatar for So Cal Builders & Design Inc

So Cal Builders & Design Inc

4.60(
223
)
•Approved Pro

So Cal Builders & Design Inc

4.60(
223
)
•Approved Pro
Customers say: Quality work
4810 local quotes requested
43 years of experience

So Cal Builders & Design have been helping the homes throughout California look perfect one nail and brick at a time! With the best prices and highest standard of service, we can deliver the kitchen or bathroom of your dreams on time and on budget! Our staff of trained technicians will build your addition or remodel to your specifications; using only the finest quality materials and the most up-to-date building procedures. We also have in house masonry service as well as perform a number of other services such as plumbing, lighting, painting, patios, and much more. Because we do it all ourselves, we eliminate miscommunication, stress and down time. We don’t use outside contractors or fancy gimmicks to get our customers. We combine new and modern building practices with tried and true hard work to deliver a work of art every time and that is why our customers make us #1. Request Your Free Estimate Voice Star: (888) 284-9122.

"Very good company . I am very satisfied with their professionalism . Highly recommended this company"

Leta W on December 2025

So Cal Builders & Design have been helping the homes throughout California look perfect one nail and brick at a time! With the best prices and highest standard of service, we can deliver the kitchen or bathroom of your dreams on time and on budget! Our staff of trained technicians will build your addition or remodel to your specifications; using only the finest quality materials and the most up-to-date building procedures. We also have in house masonry service as well as perform a number of other services such as plumbing, lighting, painting, patios, and much more. Because we do it all ourselves, we eliminate miscommunication, stress and down time. We don’t use outside contractors or fancy gimmicks to get our customers. We combine new and modern building practices with tried and true hard work to deliver a work of art every time and that is why our customers make us #1. Request Your Free Estimate Voice Star: (888) 284-9122.

"Very good company . I am very satisfied with their professionalism . Highly recommended this company"

Leta W on December 2025

Avatar for Sentri Homes

Sentri Homes

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

Sentri Homes

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
1417 local quotes requested
2 years of experience

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Anderson Plumbing Services

No reviews yet

Anderson Plumbing Services

No reviews yet
12 years of experience

Family owned and operated. Over 25 years of experience. Discounts for military and seniors.

Family owned and operated. Over 25 years of experience. Discounts for military and seniors.

Avatar for Bliss Walk-In Tubs

Bliss Walk-In Tubs

5.00(
1
)

Bliss Walk-In Tubs

5.00(
1
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

American Tubs headquartered in California, USA is a top walk-in tub manufacturer and supplier across the USA. We provide a range of walk-in tubs from compact walk-in tubs to wheelchair-accessible walk-in tubs. We also provide customized walk-in tubs with great options and accessories. So, redefine your walk-in bath experience and contact us at (800) 577-8475 for a free quote and reserve a date and time for your consultation as per your schedule.

"Everything went well, the process was pretty smooth, very good job as well as the price. No complaints at all."

Homeowner on August 2023

American Tubs headquartered in California, USA is a top walk-in tub manufacturer and supplier across the USA. We provide a range of walk-in tubs from compact walk-in tubs to wheelchair-accessible walk-in tubs. We also provide customized walk-in tubs with great options and accessories. So, redefine your walk-in bath experience and contact us at (800) 577-8475 for a free quote and reserve a date and time for your consultation as per your schedule.

"Everything went well, the process was pretty smooth, very good job as well as the price. No complaints at all."

Homeowner on August 2023

Avatar for Auto Transport - United Freight Of America

Auto Transport - United Freight Of America

4.84(
920
)

Auto Transport - United Freight Of America

4.84(
920
)
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

United Freight of America is your all inclusive transport solution. CONTACT US FOR A QUOTE. please include pick up and Drop off locations and vehicle information

"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021

United Freight of America is your all inclusive transport solution. CONTACT US FOR A QUOTE. please include pick up and Drop off locations and vehicle information

"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021

Pacific Rim Construction Group

No reviews yet

Pacific Rim Construction Group

No reviews yet

Pacific Rim Construction Group is license and bonded.

Pacific Rim Construction Group is license and bonded.

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FAQs for basement remodeling projects in Diamond Bar, CA

Finishing a basement turns unused square footage into livable space and returns up to 70% of what you spend when you sell your home. Beyond that resale boost, you gain a playroom, home office, or guest suite you can start enjoying right away. That mix of daily comfort and solid return on investment (ROI) makes basement finishing one of the smartest upgrades you can tackle.

In some parts of the country—especially lots on swamps, high water tables, or other wetlands—local codes prohibit basements. Saturated soil puts constant pressure on foundation walls and lets water seep in faster than any sump pump can handle. 

If your property sits on waterlogged ground, building on a slab or crawl space is often safer, more affordable, and code-compliant.

Most basements wrap up in four to eight weeks. Framing takes three to five days, with electrical and plumbing rough-ins following over the next week. Add five days for drywall, two to three for flooring, and another week for paint, trim, and punch-list items. 

Delays can happen if materials run late or your contractor’s calendar is packed, so build in a little cushion when you plan.

Whether a finished basement counts toward your home’s official square footage depends on local rules. Many areas only include below-grade space if it has code-approved egress, fully finished walls, ceilings, and floors, plus consistent heating. 

Check with your local assessor or building department before you start; meeting those standards can affect taxes, appraisals, and resale value.

Building codes require a checklist: dedicated heat and electrical service, a code-approved stairway, and at least one egress window or exterior door. Walls, ceilings, and floors must be fully finished and meet insulation, ventilation, and fire-separation standards. If you add a bedroom, you’ll also need a closet, proper clearances, and safe exits. If you change the layout later, be ready to update the space so every new room still meets today’s code.

The Diamond Bar, CA homeowners’ guide to basement remodelings

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

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