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  • Verified reviews icon199
    Verified basement leak repair services reviews

Find Basement leak repair pros in Portland

Avatar for Sentri Homes

Sentri Homes

New on AngiNew on Angi
Approved Pro

Sentri Homes

New on AngiNew on Angi
Approved Pro
297 local quotes requested
2 years of experience

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.


Avatar for Lo's Contracting, Inc.

Lo's Contracting, Inc.

4.85(
530
)
Approved Pro

Lo's Contracting, Inc.

4.85(
530
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
18 local quotes requested

Lo's Contracting, Inc. is your trusted partner for all your remodeling needs in Portland. With over 10 employees, we specialize in kitchen and bathroom renovations. As a licensed contractor in Oregon (CCB Number: 163811) and Washington (License Number: LOSCOCI944BC), we deliver exceptional craftsmanship and attention to detail. Contact us today to transform your home into the space of your dreams.

"The job was done on time and as promised. The workmanship was top notch. We’d hire Lo’s again in a heart beat."

Matthew K on May 2025

Lo's Contracting, Inc. is your trusted partner for all your remodeling needs in Portland. With over 10 employees, we specialize in kitchen and bathroom renovations. As a licensed contractor in Oregon (CCB Number: 163811) and Washington (License Number: LOSCOCI944BC), we deliver exceptional craftsmanship and attention to detail. Contact us today to transform your home into the space of your dreams.

"The job was done on time and as promised. The workmanship was top notch. We’d hire Lo’s again in a heart beat."

Matthew K on May 2025


Avatar for RAG Enterprises, LLC

RAG Enterprises, LLC

5.00(
2
)
Approved Pro

RAG Enterprises, LLC

5.00(
2
)
Approved Pro
2 years of experience
Free onsite estimate

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Absolutely top-flight! He is the first person I will contact the next time I need _any_ work done around the house. Polished. Professional. Creative Problem Solver. A skill set both deep and wide. And... great people skills, enjoyable to work with! "

Paul H on May 2025

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Absolutely top-flight! He is the first person I will contact the next time I need _any_ work done around the house. Polished. Professional. Creative Problem Solver. A skill set both deep and wide. And... great people skills, enjoyable to work with! "

Paul H on May 2025


Avatar for Mass Design Build

Mass Design Build

5.00(
6
)
Approved Pro

Mass Design Build

5.00(
6
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

Welcome to Mass. We are a husband and wife team with many years of experience as builder and architect. Because we engage with your project from start of design phase all the way through final construction details, we assure our clients attention to details and quality outcomes. We truly enjoy transforming your spaces uniquely to you. Every project is a joyful adventure. Let us bring you beauty and functionality.

"We started with one project with Mass Design, and were so pleased with their work that we added two additional home improvements as well. They truly care for their clients and go above and beyond when working to meet their needs. My wife and I found it surprising how carefully they listen. Things mentioned as a passing comment were noted and acted on. Their workmanship and design skills were exceptional, their communication clear and concise, and we were never left in question about any step of the process. In addition, we truly appreciated their honesty and transparency. Simply put, fantastic to work with. I would highly recommend using their services and we have more projects down the line where we will be using them."

Kerry L on September 2023

Welcome to Mass. We are a husband and wife team with many years of experience as builder and architect. Because we engage with your project from start of design phase all the way through final construction details, we assure our clients attention to details and quality outcomes. We truly enjoy transforming your spaces uniquely to you. Every project is a joyful adventure. Let us bring you beauty and functionality.

"We started with one project with Mass Design, and were so pleased with their work that we added two additional home improvements as well. They truly care for their clients and go above and beyond when working to meet their needs. My wife and I found it surprising how carefully they listen. Things mentioned as a passing comment were noted and acted on. Their workmanship and design skills were exceptional, their communication clear and concise, and we were never left in question about any step of the process. In addition, we truly appreciated their honesty and transparency. Simply put, fantastic to work with. I would highly recommend using their services and we have more projects down the line where we will be using them."

Kerry L on September 2023


Avatar for F.J.S. Construction

F.J.S. Construction

4.90(
5
)
Approved Pro

F.J.S. Construction

4.90(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 years of experience

I moved from a farm into a new house in a small town. They built four more homes next to our house and I told my parents I want to do that when I grow up. For the last 33 years I’ve been doing just that . I guess you can say “ I’m living my dream “. I do my best to listen to my clients and help them with the vision they gave for their. Communication from start to finish.

"I would highly recommend them!"

Jim H on March 2023

I moved from a farm into a new house in a small town. They built four more homes next to our house and I told my parents I want to do that when I grow up. For the last 33 years I’ve been doing just that . I guess you can say “ I’m living my dream “. I do my best to listen to my clients and help them with the vision they gave for their. Communication from start to finish.

"I would highly recommend them!"

Jim H on March 2023


Avatar for Northwest Contracting & Finishing Corp.

Northwest Contracting & Finishing Corp.

5.00(
16
)
Approved Pro

Northwest Contracting & Finishing Corp.

5.00(
16
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
32 years of experience

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Paul and his team were excellent. Got it done on time and were responsive to our questions/needs. We appreciate them making this happen!"

Holly R on July 2025

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Paul and his team were excellent. Got it done on time and were responsive to our questions/needs. We appreciate them making this happen!"

Holly R on July 2025


Avatar for McFadin Design/Build LLC

McFadin Design/Build LLC

5.00(
3
)
Approved Pro

McFadin Design/Build LLC

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

We are a small, family oriented, second generation design/ build firm located in NE Portland. We believe the simplest solutions to problems are usually the best. We operate in and foster an environment of mutual respect. Respect for each other, for our clients, and for the the world we live in. We are here for a simple reason: To do good work.

"Nice guy and easy to work with. Came up with different ideas, and saved me money. Very professional, available, responsible, and reliable. Did the job in a timely manner, and absolutely finished it when he was supposed to."

Sonia F on December 2020

We are a small, family oriented, second generation design/ build firm located in NE Portland. We believe the simplest solutions to problems are usually the best. We operate in and foster an environment of mutual respect. Respect for each other, for our clients, and for the the world we live in. We are here for a simple reason: To do good work.

"Nice guy and easy to work with. Came up with different ideas, and saved me money. Very professional, available, responsible, and reliable. Did the job in a timely manner, and absolutely finished it when he was supposed to."

Sonia F on December 2020


Avatar for Performance Renovations, LLC

Performance Renovations, LLC

4.43(
7
)
Approved Pro

Performance Renovations, LLC

4.43(
7
)
Approved Pro
Customers say: Quality work
11 years of experience
Free onsite estimate

Performance Renovations, LLC, is committed to excellence and continues to be an outstanding business in Sherwood and the surrounding areas. We specialize in additions, remodels, dry rot repair and renovations as well as all exterior work. Please contact us for any of your home improvement needs.

"We hired Performance to repair some siding on our house. Professional. Punctual. Great communication. Reasonable cost. Very impressed. We will hire them again for sure."

Patrick B on October 2023

Performance Renovations, LLC, is committed to excellence and continues to be an outstanding business in Sherwood and the surrounding areas. We specialize in additions, remodels, dry rot repair and renovations as well as all exterior work. Please contact us for any of your home improvement needs.

"We hired Performance to repair some siding on our house. Professional. Punctual. Great communication. Reasonable cost. Very impressed. We will hire them again for sure."

Patrick B on October 2023


Avatar for TerraFirma Foundation Systems

TerraFirma Foundation Systems

4.63(
66
)
Approved Pro

TerraFirma Foundation Systems

4.63(
66
)
Approved Pro
Customers say: True professional
81 local quotes requested
20 years of experience

Thousands of NW homeowners have trusted TerraFirma Foundation Systems to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! TerraFirma is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.

"Awesome crew. Work was done as promised and house is now secure and level."

JoAnn T on November 2025

Thousands of NW homeowners have trusted TerraFirma Foundation Systems to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! TerraFirma is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.

"Awesome crew. Work was done as promised and house is now secure and level."

JoAnn T on November 2025


Avatar for TerraFirma Foundation Systems

TerraFirma Foundation Systems

4.73(
165
)
Approved Pro

TerraFirma Foundation Systems

4.73(
165
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
77 local quotes requested

Thousands of NW homeowners have trusted TerraFirma Foundation Systems to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! TerraFirma is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.

"I hired TerraFirma Foundation Systems to level my home, expecting a professional job with clear communication, but the entire experience has been incredibly disappointing and costly. From the start, I hired the company to level the floors in my home, specifically to address a nearly 3-inch dip in my kitchen area, a 13x10 room. Yet after they “completed the job,” I still have a 1.5-inch dip in the center of the kitchen, and a corner of my home/kitchen that sits half an inch higher than it should be (above 0%), creating a full inch rise from the living room to the kitchen. Now they’re saying that leveling the kitchen wasn’t included in the original scope, blaming the remaining dip on my kitchen island and fridge being “too heavy” and lacking proper support—an issue they failed to identify in the initial assessment. To properly address this problem, they’re now asking for an additional $7,500, claiming this work was never part of the original job. This feels like a classic bait-and-switch tactic, and I can’t help but feel taken advantage of. To make matters worse, I discovered that they used an uncalibrated machine during the initial leveling when installing, which raised my house over an inch more than necessary, causing significant damage that wasn’t there before. Partway through the lift, they even asked me to sign a waiver to get my house closer to 0% level, effectively absolving them of any damage caused. The technician stopped mid-lift to show me the damage that was already occurring and warned that more would likely follow if we continued. I agreed to proceed, trusting their assurances and assuming their equipment was properly calibrated. I even pointed out to the technician at the time that it did not look level, and he assured me the machine was correct. Now, they refuse to take any responsibility for the resulting damage, dismissing it as “standard” and providing terms within the contract absolving them—despite them overcorrecting the home. There were also repeated measurement discrepancies, with reports showing one reading and verbal statements/emails suggesting different levels. When I sought clarification, I received vague responses and empty apologies. After all this, and nearly $30,000 invested, my floor remains unleveled. The only resolution TerraFirma Foundation Systems has offered is for me to pay additional money to level the kitchen and to wait for the overcorrected area to “settle naturally”—a process that, according to their technician, could take anywhere from two months to ten years. I hired TerraFirma Foundation Systems to fully level my home, not to leave me with an incomplete job, inconsistent results, and vague promises. If you’re considering foundation work, I strongly recommend looking elsewhere—this company has left me with extensive damage, unexpected costs, and a significant amount of frustration."

Chuck G on November 2024

Thousands of NW homeowners have trusted TerraFirma Foundation Systems to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! TerraFirma is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.

"I hired TerraFirma Foundation Systems to level my home, expecting a professional job with clear communication, but the entire experience has been incredibly disappointing and costly. From the start, I hired the company to level the floors in my home, specifically to address a nearly 3-inch dip in my kitchen area, a 13x10 room. Yet after they “completed the job,” I still have a 1.5-inch dip in the center of the kitchen, and a corner of my home/kitchen that sits half an inch higher than it should be (above 0%), creating a full inch rise from the living room to the kitchen. Now they’re saying that leveling the kitchen wasn’t included in the original scope, blaming the remaining dip on my kitchen island and fridge being “too heavy” and lacking proper support—an issue they failed to identify in the initial assessment. To properly address this problem, they’re now asking for an additional $7,500, claiming this work was never part of the original job. This feels like a classic bait-and-switch tactic, and I can’t help but feel taken advantage of. To make matters worse, I discovered that they used an uncalibrated machine during the initial leveling when installing, which raised my house over an inch more than necessary, causing significant damage that wasn’t there before. Partway through the lift, they even asked me to sign a waiver to get my house closer to 0% level, effectively absolving them of any damage caused. The technician stopped mid-lift to show me the damage that was already occurring and warned that more would likely follow if we continued. I agreed to proceed, trusting their assurances and assuming their equipment was properly calibrated. I even pointed out to the technician at the time that it did not look level, and he assured me the machine was correct. Now, they refuse to take any responsibility for the resulting damage, dismissing it as “standard” and providing terms within the contract absolving them—despite them overcorrecting the home. There were also repeated measurement discrepancies, with reports showing one reading and verbal statements/emails suggesting different levels. When I sought clarification, I received vague responses and empty apologies. After all this, and nearly $30,000 invested, my floor remains unleveled. The only resolution TerraFirma Foundation Systems has offered is for me to pay additional money to level the kitchen and to wait for the overcorrected area to “settle naturally”—a process that, according to their technician, could take anywhere from two months to ten years. I hired TerraFirma Foundation Systems to fully level my home, not to leave me with an incomplete job, inconsistent results, and vague promises. If you’re considering foundation work, I strongly recommend looking elsewhere—this company has left me with extensive damage, unexpected costs, and a significant amount of frustration."

Chuck G on November 2024

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Basement Leak Repair questions, answered by experts

No, your basement dehumidifier doesn’t need to be on 24/7. While it’s an excellent tool for tackling damp, musty air, especially in humid seasons, leaving it running nonstop can backfire. Over-drying the space can mess with your sinuses, warp wood, and even crack certain materials. Instead, only use your humidifier when moisture levels rise above 50%, and then give it a break when the humidity levels drop.

It depends on what caused your basement flooding, the extent of the problem, and the risk of the flood continuing. If your flood is coming from a septic system or sewer line, breathing in the sewer gasses can be dangerous, so you should vacate. If the flood occurs from an ongoing natural disaster, relocating to a safe area might be wise. If you just have a plumbing leak or rainwater coming in, you can likely stay in the house if you don’t have electrical lines down there, but make sure you call in professionals to fix the issue immediately.

The best way to fix dampness in walls is to find the root cause and fix the underlying issue. After that, you’ll need to dry the wall with a heavy-duty fan and potentially a dehumidifier. If the wall has water damage, you can remove the damaged drywall, patch it with a new piece, and then paint it to match the rest of the wall. 

Inspect regularly for clogs, clean drain lines, and ensure grading directs water away from the foundation.

If your basement often leaks after heavy rain, it’s probably caused by hydrostatic pressure. When the ground is saturated with water, it can put pressure on the exterior of your home’s foundation, causing cracks in the basement wall and pushing water through any existing weak spots. Over time, hydrostatic pressure can cause structural damage to your home.

The Portland, OR homeowners’ guide to basement leak repair services

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