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.
Moana Concrete

Moana Concrete

5.0Exceptional(9)
11 hires on HomeGuide
25+ years in business
Serves San Francisco, CA
Jackie V. says, "Everyone was easy to work with. The owner was very responsive if I had questions. He pointed out a serious drainage problem I had and was able to fix it for me." Read more
S.H.C & Concrete Services

S.H.C & Concrete Services

1 hire on HomeGuide
23+ years in business
Serves San Francisco, CA
As a Concrete Contractor we provide quality and professional services that will last you a lifetime.
EZ Concrete

EZ Concrete

5.0(4)
13 hires on HomeGuide
26+ years in business
Serves San Francisco, CA
Jane S. says, "They were efficient and skilled and have constructed a foundation that I have faith in for decades to come. Also very pleasant to work with and great communication." Read more
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..
Reasonable Masonry

Reasonable Masonry

5.0(1)
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
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
QR HOME IMPROVEMENTS SERVICEVICES

QR HOME IMPROVEMENTS SERVICEVICES

19+ years in business
Serves San Francisco, CA
Nos especializamos en trabajar con nuestros clientes a su idea junto con nuestra experiencia tratándonos con respetó con nosotros ningún trabajo es tan pequeño ni tampoco ningún trabajo es tan grande y no nos retiramos hasta dejar a nuestros clientes feliz con el trabajo terminado.
J&m Concrete

J&m Concrete

25+ years in business
Serves San Francisco, CA
I have done this kind of work for 20 yrs there is no job too big for my guys quality is not a promise but it is a fact most of my customers from recommendation of my clients price are reasonable and fair my passion for my business when my client is happy I am happy
Swift Construction

Swift Construction

5.0Exceptional(15)
29+ years in business
Serves San Francisco, CA
Reed B. says, "When my roof needed replacement, Swift Construction delivered beyond my expectations. Their attention to detail and quality materials made all the difference. Thank you!" Read more
HandyPetes

HandyPetes

24+ years in business
Serves San Francisco, CA
No job is to small! I am always willing to help my customers with their simpiliest task to a large apartment building or home. i can do simple repairs to complete remodels.

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.
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
Mia L.
Swift Construction poured a concrete slab for my backyard shed, and it’s perfect! The surface is level and durable, showing their commitment to quality.
Swift Construction
Jaydon D.
They installed new gutters along with the roof replacement. The entire system works flawlessly, and I’m very pleased.
Liberty Construction
Jeffery S.
Swinerton Builders is a name you can trust for foundation repairs. They resolved my issues quickly, and my home feels secure again.
Swinerton Builders
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