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Avatar for Alpha Structural, Inc.
Alpha Structural, Inc.
4.6(
241
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Corona, CA and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

"Erinn was my initial contact and he gave a very through and fair estimate. We had structural work done to support floor joists and large beams under the garage that needed replacing. Ernesto and his team, Julio, Salvatore and Gilder worked tirelessly to complete the work and were respectful, punctual, informative and good humoured throughout the entire process. I would not hesitate to use them again or recommend them to others. A really great company!!"
Basement Addition
Basement Expansion
Caisson Supported Retaining Wall
Cantilevered Deck Design Build
Deck Expansion and Slope Failure with Retaining Wall

+323

Response time10 hrs
Response rate96%
20 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
3.5(
175
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Corona, CA and surrounding areas

Approved (Corporate)

In business since 1995

Free estimates

Warranties offered

"Roger and his crew of Manuel, Carlos and Josias did everything we asked for and more. Roger answered all of our questions, kept us informed on the status of the project and managed the project extremely well. We definitely made the right decision having Groundworks do our project."
Foundation
Foundation
Foundation
Concrete
Concrete

+16

Response time11 hrs
73 neighbors recently requested a quote
Recommended by38%of homeowners
RSF Construction Inc.
1.0(
1
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Corona, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

Palm Construction, Inc.
5.0(
112
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Corona, CA and surrounding areas

In business since 2016

Free estimates

Credit card accepted

It can be a daunting task looking for not only the right contractor for your job but also the right contractor for you. We completely understand what you're going through. We know every customer has different desires, different needs and different schedules. We're not only here to turn your ideas into reality but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.

Recommended by100%of homeowners
Palm Construction, Inc.
4.6(
131
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Corona, CA and surrounding areas

In business since 2016

"I went with Palm Construction on my roof replacement and I am completely satisfied with their work. Jonathan and his team were extremely professional, accurate, well organized and clean. They are really great team! They worked every day till the dark and my roof was finished ahead of schedule. The quality is excellent, my roof is beautiful and I can't recommend enough this company!"
Response time3 hrs
Response rate97%
Recommended by91%of homeowners
Avatar for OM Construction Inc
OM Construction Inc
4.7(
151
)
Basement Drainage Channels - Install

Serving Corona, CA and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"Tony and his crew arrived on schedule, worked hard and did a great job on a complicated roof. The workers were pleasant as well as skilled. Very satisfied with both price and result. Would use again for other construction services they provide. Roof will outlast me."
Roofing Project
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+86

Recommended by95%of homeowners
Avatar for Thomas Parks Contracting
Thomas Parks Contracting
4.8(
100
)
Basement Drainage Channels - Install

Serving Corona, CA and surrounding areas

In business since 1976

Free estimates

Emergency services offered

"They coated our roof with something like clear plastic. The product is called elastomeric. We are very happy with everything they did. We have already had them back to put in some downspouts. They also cleaned the gutters. I would use them again and recommend their service."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

Recommended by94%of homeowners
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Basement Waterproofing questions, answered by experts

A walkout basement is considered to be partially below grade because at least one wall is entirely exposed. In some cases and in specific municipalities, inspectors and appraisers will still count walkout basements as below grade, which means the space can’t serve as living space or be rented out. If you intend on using the area as living space or a separate apartment, you should check with your local building department to make sure it’s legal to do so.

In most cases, a crawl space will not dry out on its own unless the moisture comes from an uncommon flood and isn’t expected to be a recurring issue. For most homeowners, moisture problems in the crawl space will only continue to get worse over time, so addressing the underlying problem with gutter systems or a foundation drainage system and setting up a preventative solution like a dehumidifier is necessary.

Yes, it is possible to over-dehumidify a house by removing too much moisture from the air. This can create an overly dry environment that negatively affects those with respiratory or skin issues, and may cause your skin, hair, and sinuses to feel dry. However, this is unlikely to happen with most modern dehumidifiers, as they are equipped with moisture sensors and adjustable settings. These features allow the unit to pause automatically when the desired humidity level is reached, preventing the air from becoming uncomfortably dry. In contrast, older or more basic dehumidifiers left running for too long could potentially over-dry the air. To avoid this, aim for a balance between removing excess moisture and maintaining a comfortable environment. You can often monitor your home's humidity levels using a modern thermostat for guidance.

Having a trusted crawl space contractor is the key to great encapsulation. If you're not sure how to hire a crawl space pro, begin by asking your neighbors for referrals. Homes in your neighborhood will often have a similar foundation to your house, and personal recommendations are one of the best ways to find a contractor. Additionally, double-check that the contractor has experience with encapsulation as well as proof of their license and insurance.

Physically, the most challenging part of finishing a basement is installing egress windows or doors when the space is below ground level. Mentally, the hardest part may be envisioning the project and planning around load-bearing and mechanical obstacles.

The Corona, CA homeowners’ guide to basement waterproofing services

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