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Best 5 Foundation Repair Companies in Flagstaff, AZ

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  1. Home
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  3. Foundation Repair
  4. AZ
  5. Flagstaff
Written By Max Peterson|Last Updated: May 18, 2024

Your foundation doesn't just keep your Flagstaff home secured. It also stands guard against water damage and erosion. You should call a foundation professional as soon as possible after noticing shifting or cracking walls. We've gathered the top Flagstaff foundation repair companies, so you can find the right one for you.

5 Best Foundation Repair Companies in Flagstaff

Seven Wonders Concrete Co Logo

Seven Wonders Concrete Co

Based on 11 customer reviews.

Services Offered

RepairConcreteRetaining WallsSidewalksDrivewaysGrading And Leveling


  • Free quotes
  • Good customer service
  • Transparent pricing
2 W Desilva Ave, Flagstaff, AZ 888-807-2590 concrete-flagstaff.com
Arizona Foundation Solutions - Prescott Logo

Arizona Foundation Solutions - Prescott

Based on 13 customer reviews.

Services Offered

WaterproofingRepairInspectionCrawl Space EncapsulationSidewalksConcreteSealingSump PumpsGrading And LevelingRetaining WallsDriveways


  • Helps educate customers
  • Transparent pricing
  • Free quotes
3065 E Yavapai Rd, Prescott Valley, AZ 602-470-1311 foundationrepairsaz.com
H R S & Sons Construction LLC Logo

H R S & Sons Construction

Based on 11 customer reviews.

Services Offered

Retaining WallsDrivewaysGrading And LevelingMasonryRepairConcreteSidewalks


  • Transparent pricing
  • Free quotes
  • Good customer service
7612 E Las Flores Ave, Prescott Valley, AZ 928-713-8538 hrsandsons.com
Aspire Construction Group Logo

Aspire Construction Group

Based on 11 customer reviews.

Services Offered

RepairDrivewaysGrading And Leveling


  • Helps educate customers
  • Free quotes
  • Transparent pricing
8170 E Ashley Dr, Prescott Valley, AZ 928-899-8313 aspireconstructiongroup.co
A home that recently had its foundation serviced by a local pro

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Facts about Flagstaff
Average Max Temp:64°F
Average Min Temp:46°F
Average Monthly Precipitation:1.13"
Percent of Homes With Basements0%
Average Cost of Foundation Repair:$2,360
Average Cost of Foundation Waterproofing:$2,472

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This Old House empowers homeowners with the knowledge and tools they need to tackle various projects and navigate the complexities of homeownership.

Common Causes of Foundation Problems in Flagstaff

Foundation issues have some possible causes. Here are the most frequent ones for Flagstaff residents:

  • Topsoil Frost: When temperatures plunge, topsoil abruptly ices over and lower layers can't expand, forcing upper layers to heave and permanently damage infrastructure.
  • Aging plumbing: Flagstaff has its fair share of older homes, with a median building year of 1494. Many of these properties use cast-iron plumbing. When the pipes start to erode, leakage could reach your foundation and even pool beneath it.
  • Standing water: Pooling water around your home can be menacing to your foundation, especially when it collects in areas your gutter system doesn't reach.
  • Tree Roots: Tree roots can enter a home's foundation through cracks, and may exert pressure that results in your foundation breaking, pipes being damaged, and overall structural deterioration.

How to Choose the Best Foundation Repair Company

Choosing a foundation company doesn't have to be complicated. We encourage you to write down what you desire most in a company, then evaluate each company on your list against these qualities.

Licensing and Experience

The Arizona Registrar of Contractors licenses residential contractors separately from commercial ones. Ensure your foundation company has a residential general contractor or concrete specialty license. Some larger companies might hold "dual" licenses, meaning they can perform both home and business jobs. To further understand your contractor's experience, we recommend asking questions about how its team will draft plans and pull permits, how the company inspects foundations, and what local codes apply to your project.

Contractor websites are some of the best places to do your research. Typically, a company will display how long it's been operating. It might also share articles to help prospective customers.

Customer Reviews

When you're researching a company's reputation, check out its Better Business Bureau (BBB) profile. There, you can find its "letter grade" rating and a list of customer reviews, both complaints and positive experiences. Remember that negative feedback doesn't necessarily mean a contractor is unqualified. The BBB shows how companies handle complaints. A proactive team that strives for amicable outcomes is a good one. Steer clear of a contractor if you don't see good communication about problems.

Foundation Repair Cost in Flagstaff

The cost of foundation repair can differ significantly depending on the extent of the issues and what needs to be done to resolve them. For minor foundation fissures and settling issues, you may pay as little as $1,800. However, if there is considerable damage, the average cost will likely fall around $2,400. More complex jobs involving excavation, helical piers, or concrete leveling could cost $6,700 or more. This table shows the average foundation repair costs for common issues.

Common Foundation Repair ServicesAverage Cost
Crack Repair$291
Leak Repair$2,247

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Frequently Asked Questions About Foundation Repair in Flagstaff

What will I pay to repair my foundation in Flagstaff?

Foundation repair costs about $2,400 in Flagstaff. The final numbers hinge on how severe the damage is and what type of repair you need.

How long does foundation repair usually take?

Foundation repair is usually a multi-day job, but the hands-on work takes less than a week. If your repair job involves new concrete, the crew might pause work for seven to ten days while it cures.

Do Flagstaff foundation repair companies offer warranties or guarantees?

Yes, Flagstaff foundation companies often back their work with warranties or guarantees. The specific terms of each program will vary by contractor, so you should ask about specific terms and conditions.

Do I need to leave my home for foundation repair work?

You don't have to leave your home for foundation work. The newest technology allows impressive results with minimal digging and disruption. However, the crew will still use heavy machinery, and you might still hear loud noises and feel vibration while they're working. If these would annoy you, you can always choose to leave and come back when the crew is completed.

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

More Foundation Resources

National Foundation Repair Ranking Methodology

Mold Remediation Cost Guide


U.S. Census Bureau (American Communities Survey)