Find a foundation contractor in Portland, OR

Find foundation companies in Portland, OR

Find foundation companies in Portland, OR

Confirm your location to see the best foundation contractors near you.
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Find foundation companies in Portland, OR

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

Top 10 foundation contractors in Portland, OR

Homeowners agree: these Portland foundation companies are highly rated for knowledge, experience, communication, and more.
O.S CONCRETE LLC

O.S CONCRETE LLC

5.0(1)
6+ years in business
Serves Portland, OR
Randy G. says, " decades of experience in concrete polishing" Read more
V Royal T Property Services LLC

V Royal T Property Services LLC

5.0(2)
1 hire on HomeGuide
12+ years in business
Serves Portland, OR
Robert P. says, "Vlad and his crew are OUTSTANDING! Amazing quality at an affordable price. Vlad showed up on time and provided an extremely competitive bid. His flexibility allowed us to choose a good time to paint the exterior of my house. Vlad's commitment to quality is outstanding! From detailed prep work to the final coat of paint, Vlad and his crew took care of. E like I was family. Thank you Vlad for doing a great job a d your commitment to quality at a fair price.!" Read more
Renovare Construction Services

Renovare Construction Services

6+ years in business
Serves Portland, OR
To whom it may concern. We are a locally owned company based out of Vancouver, WA. We do work on both sides of the river. Currently taking small or bigger jobs to fill in our schedule. If you are looking for friendly, local, reliable company give us a call. Thanks Sal
RIMONAIK CONCRETE SERVICES

RIMONAIK CONCRETE SERVICES

2+ years in business
Serves Portland, OR
We have chosen to start this family owned and family operated business, to not only help us but to help others as well. With more than 16years of experience under our belts, we aim for quality even if our competition is cheaper and are more than happy to answer any consultation questions. Look forward to giving your home a new look.
TOA Concrete Construction LLC

TOA Concrete Construction LLC

7+ years in business
Serves Portland, OR
We're a small family business with the focus on providing good service and making your concrete vision come to life. Call or text me for a free estimate. Thank you, Tasi
Green Pacific Concrete LLC

Green Pacific Concrete LLC

12+ years in business
Serves Portland, OR
Honest and family owned with 10+ years of experience we also sport local business and help build the economy locally
V&A Tree Service

V&A Tree Service

5+ years in business
Serves Portland, OR
It’s all about helping you helping me; my like to do is to help you with tree problems and socialize with my friends who works and help to improve my business and to help others; integrity it’s all we do in and out during our work days or within public. And always put a smile in our customers face with respect ✊ and make sure our customers is satisfying with our service🙏. Thank you for your support♥️
D&L Masonry And Concrete

D&L Masonry And Concrete

4+ years in business
Serves Portland, OR
Masonry
M M Concrete Construction

M M Concrete Construction

5.0(2)
1 hire on HomeGuide
19+ years in business
Serves Portland, OR
Tom says, "Had a pickle ball court poured in our yard after our friends had done theirs. These guys had done an outstanding job having my patio done soon. " Read more
A&S Concrete Construction

A&S Concrete Construction

Serves Portland, OR
Profesional work

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 Portland foundation contractors

Recent success stories from people in the Portland area.
Danielle H.
They gave a quick quote, we’re communicative, efficient, respectful of the space, and did a really great job! I will be using them for all our future jobs and recommending them to friends and family
V Royal T Property Services LLC
Cindy
Very Hard working! They poured 27 yards at my place and turned out excellent!! my wife is happy she can now play pickle ball with family and friends.
M M Concrete Construction
Lisa
Got our walkway done in just 2 days. Efficient and excellent work.
Pama’s Complete Concrete and Landscape
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