Provider profile
Guru Waterproofing
Provider snapshot
What this listing says
Toms River-area homeowners dealing with basement water problems who also need mold remediation and want an owner-operated company with financing options and a transferable warranty.
Best for
- Homeowners in Ocean County and central New Jersey who need both waterproofing and mold remediation handled by one company.
- Buyers looking for competitive pricing on basement waterproofing — multiple reviewers report Guru came in significantly lower than other bids.
- Homeowners selling a property who want a transferable warranty that covers the next owner.
- People with crawl space issues including encapsulation, vapor barriers, and drainage problems.
- Property owners with exterior drainage problems — several reviews confirm work on yard and property drainage, not just basements.
About this company
Guru Waterproofing is an owner-operated company based in Toms River, New Jersey, that does waterproofing, mold remediation, foundation repair, and crawl space encapsulation. Owner Mike G has been in the waterproofing business since 2002 and handles estimates and inspections personally. They hold NJ contractor license #13VH10641500 and are BBB accredited.
The main thing that stands out is their scope. They handle both the water intrusion and the mold that follows, which means one company can address the moisture source and the mold growth in a single engagement. Their mold page describes in-house testing and inspection as a first step before remediation. They also offer a two-owner transferable warranty, meaning if you sell your home, the warranty passes to the new buyer at no cost. Financing is available.
Mike G won the Angie's List Super Service Award in 2019 and 2020. Multiple reviewers describe him showing up personally for estimates, often on short notice, and several note that his pricing came in lower than competitors. The company has been operating as Guru Waterproofing LLC since at least 2019 based on the review history.
Their Google rating sits at 4.3 stars across 72 reviews. That is below the 4.5 threshold where most buyers feel comfortable, though the majority of reviews are strongly positive. The negatives cluster around communication breakdowns and a few sharp complaints about work quality.
Services
Service area
Guru Waterproofing is based in Toms River, New Jersey (Ocean County), with a Manahawkin address also referenced on their BBB profile. They claim to serve all of New Jersey across northern (Bergen, Union, Essex, Hudson, Morris, Passaic, Sussex, Warren counties), central (Hunterdon, Somerset, Mercer, Union, Ocean, Monmouth, Middlesex counties), and southern regions (Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester, Salem counties). That is 22 counties covering the entire state, which is a very broad claim for an owner-operated company.
Review consensus
Mike G is the most frequently named person across the reviews, appearing in the vast majority of positive feedback. Reviewers consistently praise him for showing up on time, explaining problems clearly, not being pushy, and offering competitive pricing. Several reviewers mention getting multiple estimates and choosing Guru because Mike's price was significantly lower. Vincent is praised by name for being helpful during a waterproofing project (Tara Himko). Kevin is praised for taking over communication and being responsive when the owner dropped the ball (Nina Speart). Chris is noted as excellent to work with (Ann B). Nelson is credited with identifying a better solution mid-job (Barbara Borrero). Jim and Vinnie are praised for on-time Saturday work on basement walls and window wells (Derek Hamilton). Multiple reviewers highlight fast turnaround — several jobs completed in a single day — and crews that clean up thoroughly after the work.
3 found across 72 total reviews at 4.3★. Two of the three 1-star reviews were posted on the same date (October 26, 2025) by reviewers with very low review counts (1 and 2 reviews respectively). Both make similar claims about an expired license and poor work quality. The third 1-star review (July 2025) describes a warranty situation where the reviewer says Mike became unreachable after learning the job was under warranty. All three are sharp in tone but light on verifiable details. None received an owner response.
The negative reviews point to a communication and follow-through problem that the positive reviews largely contradict. The 2-star review from Nina Speart is the most detailed and tells both sides: Mike missed a scheduled appointment entirely, was unreachable, and never sent an invoice — but when Kevin took over, the experience improved immediately. This suggests the company may struggle when Mike is overextended, but has capable staff who can step in. The two same-day 1-star reviews share a last name with one of the negative Facebook reviewers (DiGiorgio), which may indicate a single dispute generating multiple reviews across platforms. The 0% owner response rate on all recent negatives means no public rebuttal exists for any of these complaints.
Mike G (owner — overwhelmingly positive across dozens of reviews, with one negative citing warranty avoidance and one 2-star citing missed appointment and poor communication). Vincent (crew/sales — positive, praised for helpfulness during waterproofing project). Kevin (staff/GM — positive, praised for communication and taking over when Mike was unresponsive). Nelson (crew lead — positive, credited with identifying a better solution mid-job). Jim (crew — positive, praised for on-time Saturday work). Vinnie (crew — positive, praised alongside Jim for window well and wall work). Chris (staff — positive, praised for reliability and quality work).
If you hire Guru, ask for Mike G and pin down a specific date and time for your appointment in writing. The positive reviews overwhelmingly describe a hands-on owner who shows up, explains clearly, and delivers at a fair price. But the negatives suggest that when Mike is stretched thin, communication can fall apart entirely. Confirm your appointment the day before, get an invoice and scope of work in writing before sending any deposit, and if mold is involved, get a separate test from an independent inspector.
Keep in mind
- Guru does both mold testing and mold remediation. That creates a conflict of interest — the company identifying your mold problem is the same one billing you to fix it. Consider getting an independent mold test before committing to their remediation services.
- Their Google rating is 4.3 stars, which is below average for the category. The 1-star reviews include complaints about warranty responsiveness and work quality, and none of the recent negative reviews received an owner response.
- The 0% owner response rate on recent negative reviews is notable. When companies do not publicly address complaints, it is harder to assess whether issues were resolved.
- They claim to serve all 22 counties across northern, central, and southern New Jersey. That is an enormous area for an owner-operated company based in Toms River. Confirm scheduling timelines and whether Mike or a subcontractor handles jobs far from their home base.
- One detailed 2-star review describes a 20-day wait for a Humidex installation, with the owner missing an appointment entirely and being unreachable for hours. Communication improved only when a different staff member took over.