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Top Rated Waterproofing Contractors

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Over 731 reviews for
Longmont Waterproofing Contractors from people just like you.

A
"
has a lot of business, so it can take a while to schedule. But they did a very good job. Also, the representative who came out, inspected" the crawl space, did not try to sell me something I didn't need. He said I didn't have any mold issues. The workers worked very quickly and were done in one day.

-DAWN H.

B
"About a 1000 sq ft crawlspace was encapsulated and a dehumidifier was installed.
arrived as scheduled and finished as planned. There were" no problems. Since this is a summer home, I am unable to make further comments until such time that I return to this home.
made the best presentation and submitted the best proposal. Their price was the highest. That is why I gave them an overall "B".

-William B.

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Local Articles in Longmont

6 questions to ask a basement waterproofing contractor

If you need basement waterproofing work, make sure you ask your basement waterproofing contractor these key questions about licensing and experience.

What to expect with basement waterproofing

Waterproofing a basement can be a costly, but necessary, investment. We asked highly rated basement waterproofing companies to provide their best advice.

It only takes about 48 hours for mold to form in a wet basement. (Photo by Michelle B. of Fishers, Ind.)
Basement Waterproofing

Tired of your basement flooding every time it rains? Angie Hicks explains the most common basement waterproofing methods and provides an average cost for each.

Preventing a water problem in your basement starts with finding the best quality products for the job. (Photo courtesy of Angie's List member Huy L. of Philadelphia)
Basement Waterproofing

Out of sight, out of mind: Don't ignore potential problems with your basement or foundation. A professional explains why it's best to be proactive.

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Contractors say homeowners with this trait are the most satisfied with home improvement projects.

The damage done by neglecting a crawl space is likely affecting you more than the eye can see, says Vallone. (Photo courtesy of Angie's List member Nancy T. of Seattle)
Basement Waterproofing

It’s easy to do, but forgetting your crawl space can have plenty of negative consequences for the rest of your home from poor air quality to high energy bills.

Angie's Answers

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Mold in a basement is a common problem. My company helps people with this every day. Some of the answers you received were helpful but not all the information is correct. First, you need to eliminate the two main ingrediants that mold needs to survive. The first one is water intrusion. This is a must. I am assuming you have no water intrusion as you make no mention. The second componant that needs to be eliminated is moisture. Moisture is also humidity. Basements need to be kept airtight in the summer months. Some folks have posted that you need air flow in your basement. Nothing could be furthur from the truth. When you open any windows for example, not one micron of air goes out of the basement, Warm humid air is sucked into the basement. Houses suck air into the basement and it meets the cool surfaces and skyrockets humidity. The windows must be kept closed and a dehumidification device installed to ensure humidity stays below 60% humidity. The dehumidifier should be energy star rated and purchasing a seperate humidity guage is a must to monitor the unit's progress. We like to keep our customer's basements at 50% humidity. This eliminates the smell that is active mold spore growth. Once the water and humidity is brought under control. Remove the organic materials that have mold on them. Walls, sheetrock and studs that have been affected. Follow the advice of previous posts as you must ensure that you do not affect the rest of the home. Once removed, install new walls using as much inorganic material as possible. We also install vapor barrier over the walls and seal the floors to stopwater vapor transmission into the basement. Poly plastic is not a acceptable vapor barrier. It is not "zero-perm" and will still allow moisture transmission. It will also crack and break into pieces over the years. A PVC liner rated "zero-perm" is the correct product in this application. Depending how large the basement is and if it is sectioned off will determine the dehumidifier strength. We use the Santa Fe line of dehidifiers as they are super energy efficiant and work like a dehumidifier on steriods. I hope this helps and I wish you the best in Basement Health!
?

Where is the home located, what is the exterior wall construction and type, how is the space heated?

 

It could be a whole host of different scenarios that would generate that result.  It is nearly impossible to tell but I would say that most basement moisture problems are a result of bulk moisture intrusion or condensation issues. 

 

Given the deep and hard winter this year, it could be a condensation issue that hadn't previously been shown.

 

 

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Basement Waterproofing reviews in Longmont

A

Rating
Showed up, worked hard, very punctual, and professional. Made the entire deal very easy. Cleaned up afterwards, ensuring that the encapsulation was "clean" as well.

- Mike L.
A

Rating
Longmont Waterproofing Contractors Provider Name Locked
provided a very detailed explanation of the problems causing water to seeping up through my basement floor and/or puddle in corners. Concurrently, I received an equally detailed description of the recommended solution. Active guaranteed 100% satisfaction for as long as I owned the house and this guarantee would transfer to new owners.
The work crew arrived as scheduled and completed the work in the time quoted (3 days). As to be expected, there is some residual clean up to do on the floor after the new cement is fully cured, but nothing a good mopping won't resolve. Follow-up questions were responded to immediately.
I would recommend Active without reservation.
- Linda R.
A

Rating
It was easy to schedule a free home estimate and the appointment was made quickly. A full analysis was provided for our existing water proofing system for which we're not entirely happy with. Christian suggested a new system and thoroughly explained the how and why of what was proposed. There was no pushy sales pitch, which is generally standard with waterproofing contractors.
The quote for the work was reasonable and we'll go through with it at some point depending on availability of money and severity of the existing issues.
- Jerod N D.
A

Rating
Longmont Waterproofing Contractors Provider Name Locked
provided an estimate while I was in contract negotiations for extensive wood replacement in the crawl space of a home I was purchasing due to powder post beetles. I was concerned at the time that due to the amount of damage and work required that this would be a deal breaker. They provided a very reasonable estimate and completed the work once I moved into the home. The workers were very professional and kept a very clean workspace. All debris was cleaned up and removed. They even came back on Saturday to complete the dryer vent installation. Would definitely recommend for crawl space needs.
- MELANIE S.
F

Rating
I used this waterproofing company cost me over 9500.00 and i still have the same problem. they dug up my basement and now they are out of business. I had mold on the wall in a certain area, they told me it was leaking water, the mold came back so that wasn't the problem. On top of that they put in a filter and there was a $25.00 to have the filter maintenenced and now i cant have it serviced because the company is out of business.
- Mary F O.
A

Rating
Our master bedroom and bath are over a
Longmont Waterproofing Contractors Provider Name Locked
(rest of house is over a basement) and we noticed that the floors and rooms seemed colder than they used to; we could feel cold air coming out of the
Longmont Waterproofing Contractors Provider Name Locked
opening in our HVAC room in the basement. Got two bids. While the old insulation was obviously falling off the
Longmont Waterproofing Contractors Provider Name Locked
walls,
Longmont Waterproofing Contractors Provider Name Locked
found two holes (where the
Longmont Waterproofing Contractors Provider Name Locked
wall had shifted away from the basement foundation wall) and noted that one of the concrete footers (pylon) had begun to erode. He proposed the repairs and encapsulating the
Longmont Waterproofing Contractors Provider Name Locked
; he also went outside and found that two of the rain gutter drains were probably causing some water leakage into the
Longmont Waterproofing Contractors Provider Name Locked
. He and his team completed the work in one day; were most respectful of our home (e.g., protected the flooring, careful not to touch or damage anything); and, did a great job.
Longmont Waterproofing Contractors Provider Name Locked
was friendly and professional and didn't try to oversell us on things we just didn't need. The other company that we obtained a bid from were twice as much for encapsulation, didn't find the holes, didn't check out the exterior drains, proposed a secondary sup-pump and humidifier, both of which we don't need. Our master bedroom and bath are much warmer now.
- MICHEAL F.
A

Rating
Everything went well; all interactions were professional; every appointment was kept and arrival was prompt. The work was completed as promised. The quality of the work looks outstanding. It will take some time, and more rain, to determine for sure if the solution worked, but I believe it will.
- Traci H.
A

Rating
The job went very smoothly..
Longmont Waterproofing Contractors Provider Name Locked
, the owner, and his work crew were very professional, courteous and efficient.
He gave me a detailed plan of what they were going to do and what the cost would be. After they started, I added a little extra work and that was no problem for them.They were extremely careful to try and leave the area as clean or cleaner than it was before they came.Given that they had to breakup up the concrete with a jackhammer which raised a lot of concrete dust, they contained the dust by hanging sheets of plastic around the work areas and doing a great job of cleaning up after. They were punctual, the work was done in a timely manner and they were efficient. We had rain after they left and everything worked as it should and there was no more leakage in the basement.I would give them a strong recommendation.
- Stephen C.

All Waterproofing Contractors in Longmont, CO

Companies below are listed in alphabetical order. To view top rated service providers along with reviews and ratings, Join Angie's List Now!

Abbotts Fire and Flood Restoration

2301 S. Jason St.
Denver

Accent Painting

14924 Vine Street
Thornton

ALL CLEAN RESTORATION SERVICES

P.O. Box 1302
Arvada

All Pro Coatings

P.O. Box 620044
Littleton

All Tried and True Contractors

8501 W Bowles Ave
Littleton

All-Pro Renovations

2526 S Halifax St.
Aurora

Allied floor systems

7986 n, Pennsylvania st.
Denver

ASR Companies, Inc.

12540 West Cedar Drive
Denver

Associated Construction Services

5600 E Alameda Ave
Denver

AWH Construction INC

100 Hemlock Way
Broomfield

B n B Services

2898 w 119th ave

Baird Construction

5960 S Eaton Ln
Littleton

BND Enterprises

8871 Rutgers St
Westminster

BulletProof Plumbing & Heating

995 S Field St
Denver

Cahaba Scapes

2130 11th avenue north

Casey's Construction, LLC

1418 Clermont St.
Denver

Chris Construction

10748 Brewer Dr.
Denver

Colorado Choice Construction, LLC

25200 E. 152nd Ave
Brighton

Colorado Master Builders

4230 Elati Street Suite 200
Denver

Colorado Reconstruction Services, Inc

9039 Apache Plume Dr
Parker

CONCRETE PAINTERS

11620 E MONTANA PL
Aurora

Decorators' Choice

151 4th Ave.
Longmont

Design Exteriors

303 S Broadway
Denver

Diamond Design

410 Kensington
Longmont

Dorrell Construction

6833 s Dayton st
Greenwood Village

Dryout Concrete

7900 E 40th Ave
Denver

E & H Commercial Contracting, LLC

3531 S. Logan St.
Englewood

Everyday Solutions

707 Partridge Circle

Garvin's Sewer Service

2900 S Shoshone St
Englewood

Glacier Companies, LLC

3582 S. kittredge St
Aurora

H2O Drainage Systems

6605 S Arbutus Cir
Littleton

Hard Buck Landscaping and Home Improvements

18657 E. Stroh Rd. Unit 4205
Parker

Herch Roofing and Renovations

PO Box 348
Palmer Lake

HI TECH APPLIANCE

364 S MCCASLIN BLVD
Louisville

Integrity Remodeling services

5713 Mangrove Ct
Loveland

Jim Black Construction Inc

12279 Pennsylvania St
Thornton

Kinsman Construction Inc

12970 W 20th Ave
Golden

L&N Contractors, Inc

3719 S. Ensenada St
Aurora

Lopez Drywall

14659 E 24TH AVE
Auroa

Mark Hagemann

827 Atwood St
Longmont

Michael's Handyman Plus

1628 S. Zephyr Ct.
Denver

MJM Remodeling

7410 dakinst
Denver

NuBilt Restoration & Construction

2134 S Valentia St
Denver

O'MAC Construction

4151 S Natches Ct Ste G
Englewood

Octopus Painting LLC.

4630 S. Acoma St.
Englewood

Olshan Foundation Repair

1655 W Girard Ave
Englewood

Omni Services

4235 Peach Tree Ct.
Loveland

Peak Structural

723 S Sierra Madre St
Colorado Springs

Peaks to Plains Construction

964 Mountain View Dr
Castle Rock

PG CONSTRUCTION

7114 W 44TH AVE
Wheat Ridge

PINNACLE STRUCTURAL SERVICES

401 Laredo St Ste J
Aurora

Precision Development Group, LLC

400 N Park Ave 10B 467
Breckenridge

Premier Crawlspace

2630 Fairplay Way
Aurora

Professional Restoration

2494 W. 2nd Ave
Denver

Professional Roofing

5790 Lamar St
Arvada

Quality Builders

13550 washington St
Denver

Ram Jack of Colroado, LLC

12540 W Cedar Dr
Denver

Ray the Handyman

590 Rider Ridge Dr
Longmont

Red Diamond Restoration, Inc.

6321 N Washington ST
Denver

Reiger Construction

11318 Latigo Ln
Parker

Remcon Cleaning and Restoration

3407 S Umatilla St
Englewood

Renew Builders Inc.

110 Hunters Cove Road

RIS Insulation Supply

5160 Havana Street
Denver

Rocky Mountain Innovations

8330 E Quincy Ave Apt J206
Denver

Rocky Mountain Steel Piering

9961 Titan Park Cir
Littleton

Ron Labonte Builders

1316 Lupine Ct
Longmont

Standard Construction

8505 E Temple Dr Unit 511
Denver

Stellar Windows and Insulation

4020 Youngfield Street
Wheat Ridge

Strait Forward Construction

1196 Union St
Golden

Strait Line Roofing Services

8871 So Carr Ct
Littleton

Taylor's Home Improvement

1090 Iris St.
Broomfield

TJB Handyman services LLC

8512 wheatgrass circle

TotalPropertyCareLLC

461 English Sparrow Dr
Littleton

Wildwood Services LLC

7321 W 95th Ave
Broomfield

Your Denver Metro Construction

9112 W. 92nd Avenue
Broomfield

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