Andrew Muraszewski

Andrew founded Waterproofing Northeast in 2018 on one rule: tell homeowners the truth about their basement, do the work right, and back it with a written lifetime warranty.

700+ basements later, Waterproofing Northeast is family-owned and professionally operated. Every install runs with a WPNE crew lead on site, executing to the standard Andrew set. Andrew remains accessible as the owner on every project, from the inspection through the warranty years.

How Andrew shows up for every project

• Sets the inspection standard. Every prospect gets the same diagnostic: perimeter walk, grade check, gutter and downspout review, cove-joint inspection, soil and water-pattern read. Whether Andrew or a senior estimator he trained does the inspection, the standard is his.
• Owns the quote. Every quote that leaves WPNE is itemized with linear feet, pipe spec, pump brand and model, and warranty terms. Valid 30 days. No expiring-tonight pressure.
• Available as the owner to every customer. From the inspection through the warranty years, you can reach Andrew directly when you need the owner. The day-to-day intake is handled by the WPNE team; the standard and the accountability are his.
• Sets the install standard the crew leads run to. The install sequence, the finish standard, the materials list, and the QC checks are all defined by Andrew. The crew leads execute against that standard on every job.
• Weekly project review. Every Monday, Andrew reviews every active job with the crew leads. Photos, progress, blockers, schedule.

Areas of expertise

Andrew has personally inspected basements across the range of Twin Cities construction eras, soil zones, and common foundation types. That accumulated field experience shapes the inspection standard and the crew-lead training. What it translates to in practice:

• How Twin Cities soils behave in a basement context. Andrew is a contractor, not a geologist. But 700+ basements in, he has working knowledge of how different soils show up at the wall: where the Anoka Sand Plain hands you a seasonal water table, where South Minneapolis kettle-fill produces unpredictable lateral flow, where the till in Edina and Eden Prairie traps clay-bowl pressure. The site cites the Minnesota Geological Survey for the academic geology. The field experience translating that geology into a working drainage system is his.
• Interior drain tile systems.Proper engineering, slab depth, aggregate spec, dimple membrane behavior, sump tie-in geometry. Drain tile is WPNE's core service and the foundation of the install standard.
• Sump pump engineering. Cast iron vs plastic housings, PSC vs shaded-pole motors, the M53 vs M98 trade-off, AGM battery backup math, water-powered backup limitations.
• Foundation crack diagnosis. When a horizontal crack is structural and when a hairline crack is just shrinkage. When to call a waterproofer and when to call a foundation engineer.
• Commercial below-grade work. New construction membrane assemblies, footing drains, duplex sump systems, and retrofit work in occupied buildings.
• What insurance claims look like from the contractor side. Andrew is not a licensed insurance professional. But years of working alongside Minnesota homeowners insurance adjusters on covered (and not-covered) basement events have produced real pattern recognition for Twin Cities homeowners. Compiled the plain-language playbook as a starting point. For policy specifics, your agent and the MN Department of Commerce are the authoritative sources.

Operating philosophy

Diagnose first, sell second.A real inspection identifies the cause of the water, not just the symptom. There have been homes where the honest answer was “you don't need a full system yet” and we said so. That diagnosis-first standard is the whole point.

One quote, in writing, valid 30 days. If a contractor needs you to sign tonight, the price was always negotiable. We give you the price, you take it home, you compare it, you sleep on it. Same number next month.

Lifetime warranty that transfers. If water shows up in the area we treated, we come back and fix it free. The warranty is transferable to the next homeowner if you sell.

No subcontractors on residential work.Every crew on site is on WPNE's payroll, in WPNE trucks, under WPNE insurance. No revolving day labor.

Credentials and verification

• MN Department of Labor and Industry Residential Contractor License IR802718. Verifiable at dli.mn.gov.
• Bonded and insured with general liability and workers' compensation coverage. Certificate of Insurance available on request for GC and property-management partners.
• 5.0 / 167 Google reviews (and counting). Reviews from real Twin Cities customers, project types verifiable.
• Lifetime transferable warranty on every system we install.
• Family-owned and operated since 2018. Independent, not a franchise or a corporate roll-up.

Reference articles published on this site

The Waterproofing Northeast team publishes plain-language reference articles for Twin Cities homeowners. The field experience, opinions, and the practical translation of soil and water behavior into drainage decisions come from WPNE's work in the field across 700+ basements. Andrew reviews the content for accuracy before publication. Academic claims (geology, building code, insurance regulation) are cited to authoritative sources. A representative selection:

• Why Minneapolis basements leak, a geology-based explanation
• The Anoka Sand Plain basement problem
• Hydrostatic pressure explained for homeowners
• Sump pump buyer's guide for Minnesota
• How to read a basement waterproofing quote, line by line
• Minnesota homeowners insurance and basement water damage
• All cornerstone articles →