Top-rated foundation repair specialists.

Get matched with top foundation repair specialists in Key Largo, FL

Enter your ZIP and get matched with up to 5 pros

Need a pro for your foundation repair project in Key Largo, FL?

Select your specific project to find the pro for you.

TRUSTED BY KEY LARGO, FL HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon12
    Verified foundation repairs reviews

Verified Reviews for Foundation Repair pros in Key Largo, FL

*The Angi rating for Foundation Repair companies in Key Largo, FL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Foundation Repair needs.

*The HomeAdvisor rating for Foundation Repair companies in Key Largo, FL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Foundation Repair needs.

Last update on October 24, 2025

Find Foundation repair specialists in Key Largo

Avatar for Alpha Foundations

Alpha Foundations

3200 W Copans Rd
5.00(
5
)
•Approved Pro

Alpha Foundations

3200 W Copans Rd
5.00(
5
)
•Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
37 local quotes requested

Established in 2002, Alpha Foundations stands as a trusted subsidiary of Groundworks, a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair and structural reinforcement to crawl space encapsulation, dehumidification, and concrete lifting, we provide comprehensive services tailored to meet your needs. With offices spanning across the entire state of Florida & South Georgia, we bring our expertise closer to you. Alpha Foundations proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At Alpha Foundations, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! CBC1257350 (FL)

"This is a follow up to my prior review of Alpha Foundations. After reading my initial review, Alex (The General Manager) conctacted me to chat about my experience. I left the conversation with a better understanding of the initial inspection process and thoroughly impressed with the overall customer service of everyone I came into contact with at Alpha. From the sales team, field techs and management, my customer service experience was top notch. It's obvious to me that customer service and satisfaction is at the top of their priority list and it resonates througout the organization. Although I experienced a very minor issue with the initial diagnosis of the problems my property was having, I wouldn't hesitate to hire them again in the future and would recommend them to friends and family."

James T on March 2025

Established in 2002, Alpha Foundations stands as a trusted subsidiary of Groundworks, a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair and structural reinforcement to crawl space encapsulation, dehumidification, and concrete lifting, we provide comprehensive services tailored to meet your needs. With offices spanning across the entire state of Florida & South Georgia, we bring our expertise closer to you. Alpha Foundations proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At Alpha Foundations, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! CBC1257350 (FL)

"This is a follow up to my prior review of Alpha Foundations. After reading my initial review, Alex (The General Manager) conctacted me to chat about my experience. I left the conversation with a better understanding of the initial inspection process and thoroughly impressed with the overall customer service of everyone I came into contact with at Alpha. From the sales team, field techs and management, my customer service experience was top notch. It's obvious to me that customer service and satisfaction is at the top of their priority list and it resonates througout the organization. Although I experienced a very minor issue with the initial diagnosis of the problems my property was having, I wouldn't hesitate to hire them again in the future and would recommend them to friends and family."

James T on March 2025

Avatar for Sierra design & Development

Sierra design & Development

1234 HWY 16
No reviews yet

Sierra design & Development

1234 HWY 16
No reviews yet
20 years of experience

General contractor with 20 years experience building customs homes, pools, docks , renovations, demolition, additions , concrete, as well as grading and excavation work

General contractor with 20 years experience building customs homes, pools, docks , renovations, demolition, additions , concrete, as well as grading and excavation work

Avatar for RES

RES

200 UNION BLVD
4.56(
9
)

RES

200 UNION BLVD
4.56(
9
)
Customers say: Terrific value
10 years of experience

Ruffini Engineering Services LLC (RES) is a licensed and insured Civil & Structural Engineering Company founded in 2015. We support small and medium size projects and deliver fast turnaround times. We offer services for: -Foundations and Framing -MEP (mechanical, electrical, plumbing) -Permit Drawings and Project Consulting -Grading and Retaining Walls -Architectural Services Whether you need permit consulting for your DIY project or require a comprehensive structural design for yourself or a contractor, we can help. RES is licensed to perform engineering work in Colorado, Florida, Wyoming, Arizona, Lousiana, and Texas

"Tony has not honored our agreement. I hired him to draw a new sewer pipe connection, 6 months ago, he told me it would take 3 to 4 weeks. I still do not have an acceptable drawing. Extremely disappointed with the unprofessional performance. Refuses to return calls or emails or produce usable drawings. Just has his assistant continue to make excuses because they cannot get the work done. Hire someone else that has integrity if you need any engineering done. Will be seeking legal action to get my money back."

Jason H on December 2024

Ruffini Engineering Services LLC (RES) is a licensed and insured Civil & Structural Engineering Company founded in 2015. We support small and medium size projects and deliver fast turnaround times. We offer services for: -Foundations and Framing -MEP (mechanical, electrical, plumbing) -Permit Drawings and Project Consulting -Grading and Retaining Walls -Architectural Services Whether you need permit consulting for your DIY project or require a comprehensive structural design for yourself or a contractor, we can help. RES is licensed to perform engineering work in Colorado, Florida, Wyoming, Arizona, Lousiana, and Texas

"Tony has not honored our agreement. I hired him to draw a new sewer pipe connection, 6 months ago, he told me it would take 3 to 4 weeks. I still do not have an acceptable drawing. Extremely disappointed with the unprofessional performance. Refuses to return calls or emails or produce usable drawings. Just has his assistant continue to make excuses because they cannot get the work done. Hire someone else that has integrity if you need any engineering done. Will be seeking legal action to get my money back."

Jason H on December 2024

Home Field Services

7710 NW 23rd St
No reviews yet

Home Field Services

7710 NW 23rd St
No reviews yet
11 years of experience

Specialties: Impact Windows & Doors, All types of Roofing, General Construction, Property Management History Established in 2014. After for years working in the property management and preservation for commercial clients like banks and other institutions remodeling and constructing their properties in multiple states and cities we have decided to grow and start offering our services directly to the public with attractive 100% Financing with 0 money out of pocket Meet the Business Owner Nachman G. From a young age i have been in the construction field I started from the bottom and climbed all the way up to be a general contractor in multiple states today I mostly managed the business but i have a unique advantage because of the years i have spent on the worksite hands on managing crews first hand Home Field Services - We Get It Done !

Specialties: Impact Windows & Doors, All types of Roofing, General Construction, Property Management History Established in 2014. After for years working in the property management and preservation for commercial clients like banks and other institutions remodeling and constructing their properties in multiple states and cities we have decided to grow and start offering our services directly to the public with attractive 100% Financing with 0 money out of pocket Meet the Business Owner Nachman G. From a young age i have been in the construction field I started from the bottom and climbed all the way up to be a general contractor in multiple states today I mostly managed the business but i have a unique advantage because of the years i have spent on the worksite hands on managing crews first hand Home Field Services - We Get It Done !

Avatar for Poly Lift USA

Poly Lift USA

5400 S University Dr
4.67(
9
)

Poly Lift USA

5400 S University Dr
4.67(
9
)
Customers say: Quick response
10 years of experience

Poly Lift USA offers a quick and easy fix to your concrete settling problems. Dont replace it when you can raise it at a fraction of the cost! Our polyurethane injection process lifts and levels your sinking concrete without disruption. Most projects are completed in a few hours. And 15 minutes after, our structural grade foam is fully hardened and the area may be driven on and returned back to full function ! Made of recycled material, our polyurethane offers a clean, eco friendly solution to your sinking or settled concrete. Our Eco-Foam is also designed to provide soil stabilization in the event of erosion and or waterproofing. Filling any voids under homes, behind sea walls, under driveways, pool decks more. Call now for a free consultation! **Poly Lift USA does not supply or pour any new concrete or pour any self leveling surface** We lift and align existing slabs using injection technology.

"First class from start to finish."

John P on March 2020

Poly Lift USA offers a quick and easy fix to your concrete settling problems. Dont replace it when you can raise it at a fraction of the cost! Our polyurethane injection process lifts and levels your sinking concrete without disruption. Most projects are completed in a few hours. And 15 minutes after, our structural grade foam is fully hardened and the area may be driven on and returned back to full function ! Made of recycled material, our polyurethane offers a clean, eco friendly solution to your sinking or settled concrete. Our Eco-Foam is also designed to provide soil stabilization in the event of erosion and or waterproofing. Filling any voids under homes, behind sea walls, under driveways, pool decks more. Call now for a free consultation! **Poly Lift USA does not supply or pour any new concrete or pour any self leveling surface** We lift and align existing slabs using injection technology.

"First class from start to finish."

John P on March 2020

Showing 1-10 of 47
Foundation Repair questions, answered by experts

If you don’t have any access to or knowledge of any area underneath your home, chances are it’s built slab-on-grade. You can also look for the concrete around the bottom edge of your structure; if it’s just a few inches tall, it’s likely a slab. If it’s more than that, has any windows, or you have steps leading to your main entrance, you likely have a different foundation style.

Yes, you can live with a cracked foundation—in fact, most people do. Virtually all foundations crack from normal settlement, and while settling cracks benefit from sealing to prevent water and moisture intrusion, most aren’t an issue. If you have structural cracks in your foundation, it might be safe to live in your home for some time, but you should address them immediately to prevent structure collapse and major property damage.

Some foundation repairs are permanent, like underpinning and exterior drainage systems like the French drain. These fixes address the underlying problems—insufficient support from the soil and hydrostatic pressure on your foundation walls, respectively—so they can last for many decades, making them “lifetime fixes.” There are other solutions to address these issues that will last for up to a decade, making them temporary. These include slabjacking to raise concrete slabs back into place and dampproofing to reduce the water in the soil that interacts with the concrete foundation.

You’ll need to reseal the foundation every five to 10 years, depending on the sealant you’ve used, the moisture conditions present in and around your home, and the condition of your foundation. Having a foundation inspection conducted before reapplication can help you catch any problems before you begin resealing. Of course, if you notice any new leaks or other moisture problems at any time, it may be necessary to reseal the foundation sooner.

Most houses are expected to settle over time, but foundation sinking of more than a few inches or uneven sinking of more than an inch for every 20 feet is cause for concern. Any significant or uneven sinking should be assessed by a professional to determine the cause and perform any necessary repairs. 

The Key Largo, FL homeowners’ guide to foundation repairs

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

See all articles

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"