Company Facts
Colorado Crack Attack at a Glance
The work
- Best for
- A single leaking foundation or basement wall crack
- Primary service
- Waterproofing
Where
- Headquarters
- Denver, CO
- Service area
- Denver
- Emergency service
- Not advertised
Money and guarantees
- Free estimates
- Yes
- Financing
- Not advertised
Credentials
- License number
- Not published
Editorial Review
Our Take on Colorado Crack Attack
Colorado Crack Attack is the clear pick for a specific job, a leaking or cracked foundation wall that needs a quick injection repair. It is not a full waterproofing contractor, so homes with drainage or sump problems will need a second company. We include it because Denver has few firms in this trade and its 4.7 rating from 86 Google reviews is solid.
Best forA single leaking foundation or basement wall crack
What We Like
- Injects DE NEEF polyurea grout into actively leaking foundation cracks.
- Also offers epoxy injection, carbon fiber straps and staples, and corroded rebar repair.
- Reviewers report same-day repairs, including a six foot basement crack done in about an hour.
- Free evaluations, with a reply promised within 24 hours of an enquiry.
- 4.7 from 86 Google reviews, with Denver, Aurora, Lakewood and Arvada named as service areas.
Things to Consider
- A crack-repair specialist, not a full waterproofing contractor: no drain tile, sump pump, exterior membrane or crawl space encapsulation work.
- Shares its Englewood address and ownership with sister company Colorado Structural Repair, and Englewood is a suburb south of Denver.
- The website states no warranty terms, licence numbers, insurance details or BBB listing, so ask for these in writing.
Customer Ratings
Google Reviews for Colorado Crack Attack
Customer ratings shown here come from Google. They are separate from our editorial review above.
Rating Distribution
- 5 stars91%
- 4 stars2%
- 2 stars1%
- 1 star6%
iAbout this distribution
The distribution reflects the 86 Google reviews available when this profile's review data was last refreshed on October 28, 2026. Ratings and counts change continuously on Google, so figures here may lag the live profile slightly. We publish only the values returned by the source, never estimates for missing bands.
Recent Google Reviews
Editorial Ranking
Why Colorado Crack Attack Made Our Top 5
It holds position 4 in 5 Best Waterproofing Companies in Denver, CO (2026).
Areas Served
Based in Denver, CO.
iAbout service coverage
Coverage is as the business describes it, cross-checked against where its recent documented work is. A company will often travel beyond the areas listed here for a large job and decline a small one at the same distance, so confirm your address before scheduling.
Company Background
About Colorado Crack Attack
When water is seeping through a crack in a Denver basement wall, Colorado Crack Attack answers with an injection rather than a dig-out, and that is the work the company was built around. The crew cleans the crack, then injects DE NEEF polyurea grout under low pressure. The grout reacts with the water, expands deep into the crack and cures into a flexible seal, which suits crawl space, basement and garage walls alike. For cracks that are not leaking, the company uses low-viscosity epoxy, and where a crack shows movement it bonds carbon fiber straps or staples across it. Corroded rebar repair rounds out the list.
The business is family owned. Its website credits Byron Johnson as the founder, who started it from his garage, and says the company has been repairing Colorado foundation cracks for more than five years. The office is at 3195 S Zuni St in Englewood, and the site lists Denver, Aurora, Lakewood, Arvada, Westminster, Littleton, Highlands Ranch and Castle Rock among the places it serves. Hours are Monday to Friday, 9 a.m. to 5 p.m., and the website says new enquiries get a reply within 24 hours.
Reviewers describe a quick, tidy process. Michael said Brandon and Dylan came out for an estimate and finished the job the same day. Julien had a six foot basement wall crack repaired in about an hour by Dylan, and Emily praised Nick for helping on short notice and Brandon for fast work. The one thing to note is that some reviewers describe small jobs, and the company itself says it targets minor wall cracks that many general contractors will not take on.
Colorado Crack Attack has a 4.7 rating from 86 Google reviews, read October 21, 2026. It suits homeowners with one or a few leaking or cracked foundation walls who want a fast, targeted repair. It suits less well a home with widespread seepage, a failing drainage system, a sump pump need or a bowing wall, because the company does not do drain tile, sump pumps, exterior membranes or crawl space encapsulation. It also shares an address and ownership with a sister firm, Colorado Structural Repair.
Colorado has no statewide waterproofing licence. Denver licenses contractors and requires permits for structural work, and plumbing is licensed by the Colorado State Plumbing Board. Before booking, check the contractor licence and permit rules with Denver Community Planning and Development, confirm insurance, look up the Better Business Bureau record, and ask what warranty is in writing, since the website does not state one.
iWhere this information comes from
Company history, ownership and capability details on this page are provided by the business and reviewed by our editors for plausibility and consistency. They are not the same as the credentials block, where each item carries its own verification status and source.
Other Sources
Reputation by Source
We show each source separately rather than blending them into a single score, because they measure different things.
Pricing
Company Pricing & Estimates
What this company publishes about its own pricing.
- Free estimates
- Yes
Gallery
Project Photos
Business-submitted, reviewed by our editors
Compare
Similar Waterproofing companies in Denver
HomeStrong
5.0(406 Google reviews)Basement and crawl space water problems that may also need concrete or structural work · DenverRanked #2View profileThrasher Foundation & Concrete Repair
4.8(937 Google reviews)Homes with foundation, concrete and basement moisture problems together · DenverRanked #3View profileRam Jack of Colorado Inc
4.8(161 Google reviews)Foundation settlement, sunken slabs and wet basements · DenverRanked #5View profileGroundworks Foundation Repair Denver
4.7(2692 Google reviews)Wet basements or crawl spaces that come with sinking slabs or settling · DenverRanked #1View profile
Colorado Crack Attack FAQs
Is Colorado Crack Attack licensed to do waterproofing in Denver?
Colorado has no statewide waterproofing licence, and Colorado Crack Attack's website does not publish a licence number. Denver licenses contractors and requires permits for structural work, and plumbing is licensed by the Colorado State Plumbing Board. Check the contractor licence and permit rules with Denver Community Planning and Development, ask for proof of insurance, and look up the company's Better Business Bureau record before you book.
What are Colorado Crack Attack's hours and do they do emergency calls?
Colorado Crack Attack is open Monday to Friday, 9 a.m. to 5 p.m., and closed on weekends. Its website does not advertise emergency or after-hours service. It says new enquiries get a reply within 24 hours, and you can call (720) 999-3997 to book faster. A free evaluation comes first, and the company says most repairs finish in a single visit.
Does Colorado Crack Attack serve Denver and what warranty does it offer?
Yes, its website names Denver, Aurora, Lakewood, Arvada, Westminster, Littleton and Highlands Ranch among its service areas, with an office in Englewood. The website does not state warranty terms or financing, so ask for the warranty in writing before you agree to the work. The company repairs foundation cracks only and does not install drain tile, sump pumps or exterior membranes.
Is Colorado Crack Attack licensed and insured?
We have no credential records on file for this company yet. Ask for the certificate directly from the insurer before booking work.
What areas does Colorado Crack Attack serve?
Denver. Coverage is as the business describes it, cross-checked against where its recent documented work is. Confirm your address before scheduling, particularly at the edge of a service area.
Does Colorado Crack Attack offer emergency service?
Emergency availability is not listed for this company. If you need an urgent call-out, check the ranking for companies that do list it.
What warranty do they offer?
Warranty terms are not on file. Ask for them in writing before work starts.
How was this profile built?
Credentials come from issuing authorities, ratings from the company's Google Business Profile with the date we read them, and the editorial take from our own review of estimates, warranty documents and public feedback. Anything the business told us is labelled as reported.
Can a business pay to improve its profile?
A business can subscribe to manage its own listing details, and it can buy a labelled sponsored placement. Neither changes a ranking position or the editorial assessment on this page.
Is Something Incorrect?
Business information changes. Tell us about an address, phone, website, service area, credential or ownership change, or let us know if this company has closed.
Suggest an UpdateOwn Colorado Crack Attack?
Claim your profile to verify and maintain your business information, services and service area.
iWhat claiming does
Claiming lets you correct and maintain the factual information on this profile. Claiming or upgrading a profile does not guarantee inclusion in a TenBestFind ranking and never affects ranking position, which is decided editorially.
About This Business Profile
- Last reviewed
- October 2026
- Profile last updated
- November 11, 2026
- Google review data updated
- October 28, 2026
- Sources checked
- Google Business Profile, Company website
- Could not verify
- License (none published), insurance, founding year
- Sponsorship status
- No commercial relationship