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Top-Rated Basement remodelers in Piedmont - Updated Nov 2026

Avatar for BEAR Remodeling Inc.
BEAR Remodeling Inc.
4.8(
34
)
Basement - Remodel

Serving Piedmont, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Customers say: True professional

"Bear Remodeling Inc helped us with a room addition, and the whole experience was smooth and stress-free. The team was respectful, hardworking. The new space fits perfectly with the rest of our home. We are beyond pleased and highly recommend Bear Remodeling Inc for quality work and great service!"
Outdoor Kitchen - Clayton
Outdoor Kitchen - Clayton
Outdoor Kitchen - Clayton
Weather Safe
Outdoor Kitchen - Clayton

+127

Response time9 hrs
11 neighbors recently requested a quote
Recommended by58%of homeowners
Avatar for Cal Green Remodeling
Cal Green Remodeling
5.0(
18
)
Basement - Remodel

Serving Piedmont, CA and surrounding areas

Approved (Corporate)

In business since 2015

Free estimates

Emergency services offered

"We found Cal Green Remodeling while searching for companies on google. After meeting a few companies, we decided Shay was the best choice for us. The main reason we went with Shay and Cal Green, was because of his honest appraoch to the the whole process. While it appeared the others were saying what we wanted to hear, Shay told us the facts without attempting to lighten the situstion. For example the timeline with Shay seemed realistc compared to the others and also he provided a very detailed estimate that covered all cost and potential cost involved. Simply stated Shay made us feel comfortable. As we expected, he was the best choice. The process was smooth and Shay kept us in constant communication with updates, and completed the work on schedule. Our kitchen came out amazing and we love it! I would highly recomend Shay and Cal Green Remodeling for your home renovation. Thanks again to Shay and Cal Green Remodeling!"
Outdoor Gazebo Kitchen Morgan Hill California
Outdoor Gazebo Kitchen Morgan Hill California
Outdoor Gazebo Kitchen Morgan Hill California
Outdoor Gazebo Kitchen Morgan Hill California
Outdoor Gazebo Kitchen Morgan Hill California

+51

Response time1 day
Response rate100%
11 neighbors recently requested a quote
Avatar for Geico Builders
Geico Builders
5.0(
62
)
Basement - Remodel

Serving Piedmont, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2013

Free estimates

Warranties offered

"We hire Geico Builders for our kitchen remodeling project, and I'm happy to share my experience: working with Zaya and Geico Builders team was a great decision. They were professional, friendly, and easy to work with. Form the start, the process was smooth and efficient. The craftmanship of my remodel kitchen and attention to detail were exceptional, and the end result far exceeded my expectations. From the design phase top completion, their communication was excellent, and I felt completely at ease with them working in my home. The design solutions completely transformed my kitchen, making it both functional and beautiful. I highly recommend Geico Builders for anyone looking for a stress-free and satisfying remodeling experience."
Composite Deck Replacement Trex
Full Backyard Remodel with Outdoor Kitchen
Remodeling - Kitchen & Bathroom Project
Deck Replacement Composit
Composite Deck

+270

Response time1 day
Response rate100%
12 neighbors recently requested a quote
Avatar for OT Bay Builders
OT Bay Builders
4.9(
128
)
Basement - Remodel

Serving Piedmont, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Warranties offered

"We couldnâ t be happier with our kitchen remodel by O.T Bay Builders. The team was skilled and provided excellent recommendations. The result is a kitchen we love"
Broadway Kitchen Remodel
Broadway Full Kitchen remodel
Broadway Full Kitchen remodel
San Francisco Contemporary Kitchen Remodel
San Francisco Contemporary Kitchen Remodel

+81

Response time12 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for BUILDERS GROUP & DESIGN INC
BUILDERS GROUP & DESIGN INC
5.0(
21
)
Basement - Remodel

Serving Piedmont, CA and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"Every remodeling project comes with surprises, and ours was no exception. Instead of making excuses, Builders Group came up with practical solutions and kept the project moving. They were honest about costs, transparent about timelines, and handled every challenge professionally. That’s the kind of contractor you want on your side."
South San Francisco
South San Francisco
South San Francisco
South San Francisco
South San Francisco

+139

5 neighbors recently requested a quote
Avatar for Revitalize Bay Area Builder
Revitalize Bay Area Builder
5.0(
25
)
Basement - Remodel

Serving Piedmont, CA and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Revitalize Bay Area Builder has helped with a number of projects around my home ranging from sink installation to wiring light fixtures. I canâ t speak highly enough of Arjmand and his work. He is incredibly knowledgeable and thorough and provides impeccable service. I highly recommend hiring Revitalize Bay Area Builder and I look forward to their help with my next project."
Response time9 hrs
Recommended by100%of homeowners
Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.7(
42
)
Basement - Remodel

Serving Piedmont, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"Our kitchen remodel exceeded our expectations, providing us with a beautiful and highly efficient space for cooking and gathering. We're thrilled with the results, as the new design seamlessly integrates style and functionality."
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+1

Response time6 hrs
Recommended by17%of homeowners
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FAQs for basement remodeling projects in Piedmont, 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 Piedmont, CA homeowners’ guide to basement remodelings

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