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Find Foundation, basement or crawlspace waterproofing / encapsulation pros in Diamond Bar

Avatar for Alpha Structural, Inc.
Alpha Structural, Inc.
4.8(
147
)

Serving Diamond Bar, 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

+315

Response time10 hrs
Response rate96%
32 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
4.4(
124
)

Serving Diamond Bar, CA and surrounding areas

Approved (Corporate)

In business since 1995

Free estimates

Warranties offered

"Knowledgeable, friendly, honest and thorough -- best investment is to protect one's asset including stabilizing the foundation."
Foundation
Foundation
Foundation
Concrete
Concrete

+16

Response time11 hrs
66 neighbors recently requested a quote
Recommended by38%of homeowners
RSF Construction Inc.
New to Angi

Serving Diamond Bar, 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!

Avatar for Built Strong Construction
Built Strong Construction
5.0(
22
)

Serving Diamond Bar, CA and surrounding areas

In business since 1979

Free estimates

Emergency services offered

"I purchased a home which was built in 1950 and was sitting on a crumbling brick foundation. We got a few estimates as the floors were uneven and weak. Built Strong Construction provided photos, references and their price was not the highest nor lowest. They did an incredible job, replaced the entire damaged brick foundation and within just a week I have a brand new concrete foundation! My floors are even, supported and I’m very impressed. Thank"
Recommended by100%of homeowners
Juon Painting
4.8(
31
)

Serving Diamond Bar, CA and surrounding areas

In business since 1990

Free estimates

Warranties offered

"We used them to paint the interior of the house a few years ago, and they did an excellent job. When the exterior needed painting, I called them again without hesitation. Edwin was on time for the appointment. I explained what was needed, and showed him the areas of stucco that was leaking in the rain. He suggested sealing the cracks with silicone, and applying Thompsons Water Seal to the area as well. It took 4 days to paint the house and doors. The crew of 3 arrived every morning between 7:30 - 8:00, and left in the evenings after 5:00. They started by powerwashing the house, and worked on the high areas first. The yard was kept very clean, but a side gate was left open most evenings. Not a big deal, but I am glad I checked before letting the dogs out! Edwin suggested changing the color of the side door to the garage to the color of the home trim and rain gutters. I was hesitant, but went with his professional opinion. The color change on the door looks great! The home and trim is the same color as before (a light peach with brown trim). No problems with the work at all, and it has rained several times and no leaks!! I would definitely continue to use and recommend Juon Painting"
Recommended by96%of homeowners
Avatar for Sinai Construction
Sinai Construction
5.0(
46
)

Serving Diamond Bar, CA and surrounding areas

In business since 1984

Free estimates

Warranties offered

"I am selling my house and needed to fix the foundation as it was sagging in one of my rooms.  I contacted E.J. and he came to the house and explained the entire process.  He was very friendly, knowledgeable and professional and answered all of my questions and concerns.  I received the quote when they said I would and found the price to be reasonable.  They did not try to up sell me which I appreciated.  The crew was also professional and clean.  They cleaned up around the house daily, I had no problems.  The floor feels solid now and no longer squeaks!  I am very happy with the work performed and the experience with E.J. and his crew was very smooth and stress free.  I will definitely recommend them to anyone who needs foundation work. <br />"
Recommended by100%of homeowners
Avatar for Adam's Construction & Engineering
Adam's Construction & Engineering
5.0(
43
)

Serving Diamond Bar, CA and surrounding areas

In business since 1994

Free estimates

Warranties offered

"I've dealt with a number of contractors throughout the years and I must say Adam Othman is truly one of a kind. Adam only works on one job at a time and the quality of service really shows. I knew Adam was the right person for our project immediately after our very first phone call. He took his time to really understand my objectives. You immediately get the sense that Adam is unlike other contractors. He is extremely sensitive to the client's budget and goes beyond the call of duty to get the job done right and on budget. Our project involved a 1922 Spanish home with a very low tiled ceiling. The ceiling was extremely out of scale in relation to the size of the room and it was our objective to raise it as high as possible. Prior to our contract, Adam dedicated so much time surveying the attic on two separate occasions and helped us come up with a solution that didn't require any major structural modification to our existing roof. Adam is a very methodical thinker. You could literally see his mind coming up with solutions as he quietly studied the project. You know you are in good hands because of the questions he asks. He anticipates problems before they even happen and that really put us at ease. Our project time frame was 4 weeks. Adam started the project on time and finished EXACTLY on the week he promised. He is by far the most organized contractor I've ever dealt with. Workmanship was superb. The work area was always left clean and the framing he personally did on the ceiling was truly a work of art. Before the drywall went up, he and I joked that the framing was too beautiful to cover up. He did absolutely beautiful work. The drywall crew did an outstanding job skim coating the plaster walls and their workmanship was as superb as Adam's. He clearly hires the best sub contractors in the business. It was the most stress free experience we've had from any previous contractor and that is testament to the way Adam runs his business. The living room is now quickly becoming my favorite room in the house and I am grateful to Adam for putting all his heart into it. He is truly a wonderful contractor who I now consider a friend. I have absolutely no hesitation recommending him to anyone. He is truly the best!"
Recommended by97%of homeowners
Avatar for CXC Contracting
CXC Contracting
4.7(
40
)

Serving Diamond Bar, CA and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"Will and his team at CXC did a great job replacing a failing stem wall perimeter foundation on my 1920s mid-city home. I bid the project out to six different contractors. His bid came in close to most and it became quickly apparent that his crew would delivery the highest quality and integrity to the job. His ability to accommodate my scheduling needs, the crew's many years of experience and overall professionalism, and the quick communication from the office administration all resulted in a great experience. A big shout out to WILL (Owner), CELSO (Foreman), and ROSANNA (Administration). Word of advice, get multiple bids and always verify general commercial liability insurance and that it covers the type of work that is going to be done. CXC's was easily verified...others were not and in some instance foundation repair was not even underwritten into their policies. CXC is BBB accredited, many others are not. I would not hesitate to work with Will and CXC again on my future projects."
Recommended by85%of homeowners
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FAQs for foundation, basement or crawlspace waterproofing / encapsulation projects in Diamond Bar, CA

The most affordable way to waterproof your basement is with interior methods like waterproof paint, costing between $1 and $8 per square foot, or silicate concrete sealers priced at $4 to $6 per square foot. However, these solutions are only suitable for certain issues. If your basement moisture is due to more serious problems like a cracked foundation, you'll need more extensive (and costly) repairs.

Absolutely! Waterproofing your basement is a smart investment that can increase your home's value. By keeping your basement dry and free of moisture problems, you protect your home's structural integrity and make it more appealing to potential buyers. Plus, taking proactive measures now can prevent costly water damage repairs down the line.

The time required to waterproof a basement depends on the selected method. Some approaches to interior waterproofing, like paint or sealant, can be completed within a day. Installing new drains or weeping tiles will need at least two to three days of labor. Any forms of exterior waterproofing that require you to excavate land will require an additional three days of work to prepare the ground.

Yes, basement waterproofing can significantly increase your home's value. A dry, leak-free basement is a strong selling point for potential buyers, enhancing your property's desirability and market price. Investing in professional waterproofing not only protects your home's structural integrity but also ensures a healthier living environment by preventing mold and mildew growth.

Waterproofing both the interior and exterior of your basement offers the best protection against moisture. Exterior waterproofing stops water from penetrating your foundation, while interior methods manage any moisture that does enter. If you must choose one, exterior waterproofing is generally more effective, as it prevents water from reaching your home's interior in the first place.

The Diamond Bar, CA homeowners’ guide to foundation, basement or crawlspace waterproofing / encapsulations

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