Find a foundation contractor in San Francisco, CA

Find foundation companies in San Francisco, CA

Find foundation companies in San Francisco, CA

Confirm your location to see the best foundation contractors near you.
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Find foundation companies in San Francisco, CA

Confirm your location to see the best foundation contractors near you.
Zip code

Top 10 foundation contractors in San Francisco, CA

Homeowners agree: these San Francisco foundation companies are highly rated for knowledge, experience, communication, and more.
World Electrical Contractors Inc &ARZ Construction

World Electrical Contractors Inc &ARZ Construction

5.0Exceptional(7)
3 hires on HomeGuide
18+ years in business
Serves San Francisco, CA & Online
Jyoti S. says, "Alex was the technician and he was awesome and got the job done. I would recommend him 100%" Read more
DCS Integrated

DCS Integrated

1 hire on HomeGuide
25+ years in business
Serves San Francisco, CA
We are full service General Contractor with more than 20 years experience. Our services include Plumbing, Electrical, Bathrooms repair and remodel, Interior (Drywall repair/texture, doors hung/repaired, trim carpentry, shelving/storage built), Exterior (fence, gate install/repair; install patios/repair decks; gutter replace/repair; siding, fascia, soffit repair; window installation/repair; caulking; brick work; stone/decorative walkways; cement repair/replace; landscaping; painting), Kitchens repair and remodel, Garage upgrades and remodel, Energy Efficiency (weather-strip doors/windows, install energy-saving light bulbs, install attic insula...
Mauri Concrete Construction Co, Inc

Mauri Concrete Construction Co, Inc

2009+ years in business
Serves San Francisco, CA
We are reliable, honest and always doing the best quality for a reasonable price I love to create beautiful hardscape experience for our clients
Fernandos Concrete + Landscaping

Fernandos Concrete + Landscaping

2 hires on HomeGuide
17+ years in business
Serves San Francisco, CA
Hello my name is fernando with 17 years of experience in all kinds of concrete, landscaping, harscape l and my team we take care of the slightest detail for our costomers to be 100% satistied we offer very economical prices and good quality of work..
Stellar Building Group

Stellar Building Group

5.0(2)
7+ years in business
Serves San Francisco, CA
Valeria A. says, "Did some concrete work and some stairs for my garden, great job and great price. I will be giving them a call again in the future." Read more
J&R Landscaping And Construction

J&R Landscaping And Construction

1 hire on HomeGuide
Serves San Francisco, CA
J&R Landscaping is a construction based company comprised of highly skilled individuals and headed by (Jose R)a landscape professional with over 7 years of experience, We specialize in exquisite residential and commercial projects that are intended to be beautiful at the time of installation and gracefully mature and improve as they age. We have developed into a reputable landscape operation, having built trusting relationships with our dedicated clientele along the way. Our focus from the very beginning, and still today, has been on outstanding service and dedication and this has served our customers well in that they have consistently recei...
Innovation Plumbing And Rooter Dba HBR CONSTRUCTION

Innovation Plumbing And Rooter Dba HBR CONSTRUCTION

4.9Exceptional(19)
28 hires on HomeGuide
9+ years in business
Serves San Francisco, CA & Online
Mrs. Judy L. says, "Agreed to a price and charged correctly for a fine job. Very professional attitude. Judy P" Read more
Green Mountain Spert Tree Service

Green Mountain Spert Tree Service

22+ years in business
Serves San Francisco, CA
Hi I’m Rolando good work and fast quality and reasonably 100 0/0 off my claims are happy for the work I been done I will provide photo numbers
Property Channel Flooring

Property Channel Flooring

8+ years in business
Serves San Francisco, CA
As a fully licensed, bonded, and insured flooring provider, Property Channel Flooring is proud to serve the Bay Area with premium flooring services for both commercial and residential properties. We offer a wide selection of flooring options, from classic hardwood to modern vinyl, all backed by professional installation and top-notch craftsmanship. Our goal is to make your flooring project as seamless and stress-free as possible, delivering quality that enhances both the beauty and functionality of your space. In addition to our flooring services, we also specialize in waterproofing solutions to protect your floors and property from water da
Reasonable Masonry

Reasonable Masonry

5.0(1)
Online now
1 hire on HomeGuide
23+ years in business
Serves San Francisco, CA
Pelelina A. says, "They were very professional and they communicated very well. They said they’ll be done in three days. They finished in 3 days. High-quality work for a very reasonable price. I will be using them in the future." Read more

Your Foundation Contractors questions, answered

Answers to commonly asked questions from the experts on HomeGuide.

How much does it cost to install a foundation?

The cost to install a foundation depends on the type of foundation installed. The most common types of foundations are concrete slabs, pier and beam, crawl space, and basement foundations.

  • A concrete slab foundation costs about $6 to $12 per square foot for a single, poured concrete slab that rests on the ground.
  • A pier and beam foundation costs $8 to $15 per square foot and is made up of concrete or metal piers supported by beams. These foundations are common in areas with sandy or unstable soil.
  • A crawl space foundation costs $15 to $18 per square foot for the elevated foundation with enough space to crawl through. These foundations are common in warmer climates where the frost line is not deep or on sloping lots since they don't require as much excavation as other foundations.
  • A basement foundation is the most expensive at $35 to $50 per square foot. This foundation provides the most space and flexibility. A finished basement foundation can double the living space of a home.

Do you install septic before a foundation?

Yes, you generally install the septic system before pouring the foundation for a new home. The leach field and septic tank need to be located in a specific area of the property and this is easier to do before the foundation is in place. Installing septic first also allows you to have water available on-site during construction.

How much does it cost to fill in a crawl space?

Filling in a crawl space or crawl space encapsulation costs $3,000 to $8,000. Prices include basic cleaning, minor repairs, mold removal, and installing a vapor barrier, a sump pump, new insulation, and a dehumidifier. The total project cost depends on the condition and size of your crawl space, the type of insulation you choose, the thickness of the vapor barrier, and the pump and dehumidifier installed.

Crawl space encapsulation prevents excess moisture, mold growth, radon gas poisoning, and pest infestation. The process also helps alleviate allergens and pollutants to improve air quality. Another benefit of crawl space encapsulation is better insulation that can reduce energy bills by up to 20%.

How long does a poured concrete foundation last?

A poured concrete foundation can last for 80-100 years or more if it is properly constructed and well-maintained. However, a number of factors can affect the lifespan of a concrete foundation, including the quality of the concrete mix and the workmanship, the climate and soil conditions, and the amount of weight the foundation is supporting.

Some of the most common reasons a foundation fails include:

  • Poor drainage
  • Frost heave
  • Tree root invasion
  • Earthquakes and other seismic activity

How deep does a concrete foundation need to be?

Generally, a concrete foundation needs to be at least 12 inches deep to ensure the foundation is below the frost line and can support the weight of the structure. In some cases, a deeper foundation is required. If you are building in an area with a high frost line, poor soil quality, or building a very heavy structure, you may need to dig deeper.

A qualified structural engineer can help determine the appropriate depth for your concrete foundation.

What questions should I ask a foundation contractor?

Here are some questions you can ask a foundation contractor to ensure you are making the best choice for your project:

  • Is your company licensed, bonded, and insured for foundations?
  • How long have you been pouring foundations in my area?
  • What experience do you have installing my preferred foundation type?
  • What does your estimate include?
  • How long will the foundation take to install?
  • Do you have past clients I can contact or a current job site I can visit?
  • Do you offer a written estimate, contract, and timeline for the job?
  • What happens if the foundation is delayed due to weather or other unforeseen circumstances?

How do I choose a foundation contractor?

Selecting and pouring a foundation is one of the most important steps in building your new home. Choose the best foundation contractor by following these steps:

  • Get at least 3 estimates with the same foundation type to compare costs.
  • Confirm the contractor's experience with your preferred type of foundation.
  • Make sure the contractor is licensed, bonded, and insured, with 5 years of experience.
  • Look for foundation contractors with good reviews on HomeGuide and Google.
  • Ask for references from past clients and follow up to get their opinion on the work quality.
  • Confirm if the estimate includes labor, materials, and equipment costs.
  • Ask for a contract in writing that includes the costs, timeline, and warranty information.

Reviews for San Francisco foundation contractors

Recent success stories from people in the San Francisco area.
Deborah R.
He was a great guy his work was very professional and he got all of it done on time. I would hire him any other time I have referred him out to other clients of mine
World Electrical Contractors Inc &ARZ Construction
Candie C.
Hired these guys for a large project at my job, we needed to redo the entire driveway for an apartment complex. These guys did a great job with the concrete, gave it a clean design and finished ahead of schedule. Very happy with the results.
Stellar Building Group
Juan O.
Very professional. Replaced the water heater in no time. Very clean work
Innovation Plumbing and Rooter dba HBR CONSTRUCTION
Lidia R.
I just had my new driveway, walkway and Fence done, everything is amazing, I highly recommend junior and Moana Concrete, it looks clean and elegant and the two-tone design really pulls everything together. Thank You so
Moana concrete
James B.
Leni and his team were great. They were on time and got the work done quickly. We had them pour a large concrete patio and demo some old concrete
EZ Concrete
Jaydon D.
They installed new gutters along with the roof replacement. The entire system works flawlessly, and I’m very pleased.
Liberty Construction
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