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Verified Reviews for Basement Waterproofing pros in Middletown, CA

*The Angi rating for Basement Waterproofing companies in Middletown, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

*The HomeAdvisor rating for Basement Waterproofing companies in Middletown, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

Last update on April 07, 2025

Find Basement waterproofing pros in Middletown

Avatar for Groundworks
Groundworks
4.6(
19
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Middletown, CA and surrounding areas

Approved (Corporate)

In business since 2023

Free estimates

Warranties offered

"Groundwork’s did a great job on our house. Luis G was an amazing Forman with Ken H and Mark P all waterproofed under our house. They worked quickly, efficiently and thoroughly left all areas in tact and clean. Luis communicated very clearly about the all aspects of the job until it was completed."
Basement
Basement
Basement
Basement
Foundation

+16

156 neighbors recently requested a quote
Recommended by58%of homeowners
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Avatar for Sonoma Siteworks & Engineering
Sonoma Siteworks & Engineering
5.0(
4
)
Basement Drainage Channels - Install

Serving Middletown, CA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"work was well organized, well executed and completed ahead of schedule by a friendly and knowledgable crew."
Additional Photos
Clearing and Grading
4 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Hampton Enterprise LLC
Hampton Enterprise LLC
3.7(
9
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Middletown, CA and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"I only use James when I need some work done to my house. He responds fast, gets the work done quicker than just about anyone else I've ever used and seems very concerned with leaving his customers happy."
Additional Photos
Additional Photos
Recommended by60%of homeowners
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Avatar for Diamond D Construction, LLC
Diamond D Construction, LLC
3.5(
6
)
Basement Drainage Channels - Install

Serving Middletown, CA and surrounding areas

In business since 2017

Free estimates

Offers commercial services

"They are efficient, customer service oriented, always in a timely manner, and everything they promised they delivered."
Response time3 days
Recommended by100%of homeowners
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Avatar for Baker Excavating Co
Baker Excavating Co
5.0(
1
)
Basement Drainage Channels - Install

Serving Middletown, CA and surrounding areas

In business since 2018

Free estimates

Offers commercial services

"He did wonders, was able to make driveways and flat spots on my slopped property. Gets the job done right, works quickly, and keeps me up to date with everything. I am going to be hiring him again here soon."
Response time12 hrs
Recommended by100%of homeowners
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Basement Waterproofing questions, answered by experts

A sewage smell in your crawl space is usually from a damaged or clogged pipe leaking sewer gasses or actual sewage underneath your home, but there are some other common causes. Moisture, from poor or damaged encapsulation or a malfunctioning sump pump, can harbor mold and bacteria, causing a musty smell. Pests can also get stuck in your crawl space and die, which causes a sewage-like odor.

When doing any type of project involving mold, it's important to wear the right protective gear. You'll want an N-95 or KN-95 mask to keep yourself from inhaling mold spores, which can be irritating or trigger an allergic reaction in people with weakened immune systems. You'll also want to wear protective eyewear and gloves to limit your contact with mold.

In some circumstances, foundation refacing or repair may be a better option for your home than sealing a foundation. It’s always a good idea to take steps to prevent moisture problems in your foundation, but if there are any structural concerns, those will usually need to be fixed first. When dealing with foundation issues, it’s a good idea to get a professional opinion so you can avoid bigger problems down the road. 

There are several small, inexpensive upgrades you can make to upgrade your basement. Although you still need to adhere to building codes and obtain permits when necessary, you can complete small but mighty tasks like painting the masonry walls and installing entertainment devices to make the space more usable. 

Yes, the air from a damp basement can travel up into your living area through a process called the stack effect, so moisture, mold spores, and other debris in your basement air can all decrease your indoor air quality on your main floors. Additionally, damp basements can promote the rotting of building materials, which can damage flooring, insulation, and framing on your first floor in addition to materials in the basement.

The Middletown, CA homeowners’ guide to basement waterproofing services

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

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