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Find Basement remodelers in Portola

Avatar for Barraza Construction, Inc.
Barraza Construction, Inc.
5.0(
1
)

Serving Portola, CA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

Welcome to BARRAZA CONSTRUCTION INC! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

Response time3 days
12 neighbors recently requested a quote
Recommended by100%of homeowners
Palm Construction, Inc.
5.0(
112
)

Serving Portola, CA and surrounding areas

In business since 2016

Free estimates

Credit card accepted

It can be a daunting task looking for not only the right contractor for your job but also the right contractor for you. We completely understand what you're going through. We know every customer has different desires, different needs and different schedules. We're not only here to turn your ideas into reality but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.

Recommended by100%of homeowners
Avatar for Clear Horizon Home Solutions, Inc.
Clear Horizon Home Solutions, Inc.
4.3(
214
)

Serving Portola, CA and surrounding areas

In business since 2011

Free estimates

Credit card accepted

"â The entire team were amazing. We were very hesitant and nervous about the remodel of our master bath as we had not done a remodel before. We interviewed others and continued to delay the project each year as we heard so many nightmarish bathroom remodel stories from friends, until we met Expert Home Builders owner. He kept his promises about budget and timing and delivered even more than we expected. His team arrived and departed according to plan, were extremely neat and even protected our very new hardwood floors (which they had to walk across numerous times daily) from any damage. Our bathroom is everything we hoped for and have been enjoying it for nearly a year. Thank you for a wonderful work !"
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Kitchen Remodels
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+2

Recommended by82%of homeowners
Avatar for Mega Power Electric, Inc
Mega Power Electric, Inc
5.0(
191
)

Serving Portola, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Excellent Service from planning through Execution and installation to final fine tuning. The folks communicated well and explained every detail of the step. Got permit and inspection done. It was seamless. Thanks. R."
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+32

Recommended by100%of homeowners
Avatar for Homemade Design
Homemade Design
3.7(
322
)

Serving Portola, CA and surrounding areas

In business since 2006

Credit card accepted

"I did not go with this company, they refunded my money because I didn't like their design.   I've reviewed this before.  Please can you stop these requests to do a review.
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Pennsylvania Master Bathroom
Boston Small Condo Kitchen
California Client Saves with HMD Designer Discounts
Recommended by54%of homeowners
TM Construction
5.0(
1
)

Serving Portola, CA and surrounding areas

In business since 2006

Free estimates

TM Construction, strives to do the job right the first time for every customer we work with. Steven Todd Montgomery, is the TM part of the business; my crew and I take pride in our work, and we work well with each custom, individual request that we receive. There's no job too big or too small that we cannot handle with quality craftsmanship and on-time delivery. We specialize in concrete/masonry, deck repair and construction, carpentry framing, siding, waterproofing, home additions, home remodeling, electrical, plumbing, tile, flooring, paving, rock/stone walls, patios and steps and much more. Please consider calling us today for your free estimate. We look forward to working with you on your next home improvement project.

Response time4 days
Recommended by100%of homeowners
Avatar for Elevated Builders
Elevated Builders
5.0(
1
)

Serving Portola, CA and surrounding areas

In business since 2025

Free estimates

Small jobs welcome

We take great pride in our experience, expertise, quality and customer service, that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate, with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today!

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+67

Response time2 days
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FAQs for basement remodeling projects in Portola, 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 Portola, CA homeowners’ guide to basement remodelings

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