Thompson Trenchless provides professional storm drain cleaning services throughout Wyandotte, Monroe, and Downriver Michigan—comprehensive hydro jetting service for commercial parking lot catch basins, storm drain lines, municipal storm systems, and industrial yard drains. Storm drain systems require regular maintenance removing accumulated leaves, sediment, debris, and obstructions that prevent proper drainage. Neglected storm drains cause parking lot flooding, property damage, liability concerns, and municipal violations—professional cleaning prevents these expensive problems protecting commercial properties and operations.
Unlike sanitary sewer systems carrying wastewater to treatment plants, storm drains discharge directly to lakes, rivers, and streams requiring different service approaches and environmental considerations. Our storm drain service uses high-capacity equipment handling heavy debris loads commercial storm systems accumulate, includes catch basin pumping and cleaning, provides line jetting removing blockages and buildup, offers camera inspection documenting conditions, and delivers proper disposal meeting environmental regulations. We serve commercial properties, retail facilities, industrial sites, multi-unit residential complexes, municipalities, and any property with storm drainage infrastructure.
With 30+ years experience maintaining commercial storm drainage systems in Wayne County and Monroe County, we provide expert service with seasonal maintenance programs (spring and fall cleaning preventing problems), annual contracts with predictable pricing, emergency response when flooding occurs, complete documentation for property management. Whether preventive maintenance or emergency flooding response, we ensure your storm drainage systems function properly protecting property and preventing disruptions. Return to our hydro jetting hub to explore all our services.
Understanding the distinction between storm drains and sanitary sewers is essential for proper maintenance. Storm Drains: Collect rainwater and surface runoff from parking lots, streets, roofs, and paved surfaces. Discharge directly to local waterways (lakes, rivers, streams) without treatment. Designed to handle high volumes during rain events. Accept only clean stormwater—contaminants create environmental violations. Regulated by EPA and state environmental agencies under Clean Water Act. Property owners responsible for maintenance preventing environmental discharge.
Sanitary Sewers: Carry wastewater from buildings (toilets, sinks, drains) to municipal treatment plants. Processed before environmental discharge. Handle continuous moderate flows. Accept grease, soap, waste materials. Regulated by health departments for public health. Municipal systems typically maintain after property line connection.
Why Distinction Matters: Storm drains require different service approaches: high-capacity equipment for heavy debris loads, environmental compliance for discharge and disposal, seasonal maintenance preventing accumulation, large-diameter capabilities (storm drains often 12-24+ inches), understanding of stormwater regulations. Attempting to service storm drains like sanitary sewers provides inadequate results. Our storm drain-specific expertise ensures appropriate equipment, methods, compliance, and documentation.
Storm drain systems accumulate material creating serious problems requiring professional maintenance. Seasonal Debris: Fall leaves and organic material (tons accumulate in commercial parking lots), spring pollen and seed pods, storm debris from weather events, landscape maintenance clippings. Without removal, organic material decomposes creating sludge and blockages. Sediment Accumulation: Dirt and mud from landscaping and paved areas, sand and salt from winter operations, construction site sediment, erosion from unpaved surfaces. Sediment settles in catch basins and lines reducing capacity.
Man-Made Debris: Trash and litter blown into storm systems, cigarette butts and small items, shopping carts and large objects, illegal dumping in catch basins. Large items create complete blockages. Root Intrusion: Tree roots seeking moisture infiltrate storm drain lines, create blockages and structural damage, require specialized removal. Without regular cleaning, accumulated material creates complete blockages, standing water and flooding during rain, property damage and liability concerns, environmental violations from contaminated discharge, expensive emergency service needs.
Professional preventive cleaning removes material before problems develop. Seasonal service (spring and fall) addresses predictable accumulation. Annual maintenance prevents progressive buildup. Much less expensive than emergency flooding response and damage repairs.
Storm drain cleaning employs high-pressure hydro jetting for effective results. Our commercial-grade equipment produces 4,000+ PSI with high water volume capacity handling large-diameter storm drains (12-24+ inches typical). Process involves accessing system through catch basins or manholes, removing accumulated debris from basins (manual removal of large material), deploying high-capacity jetting equipment, advancing hoses through storm drain lines (often 100-500+ feet), activating sustained high-pressure cleaning removing all sediment and buildup, flushing debris downstream to collection point or proper disposal.
Unlike sanitary sewer jetting focused on grease and organic buildup, storm drain jetting addresses heavy sediment loads, compacted leaf material, large foreign objects. Requires specialized nozzles designed for debris removal and sediment cutting. Camera inspection after cleaning documents clear lines and identifies structural issues requiring repair. Professional storm drain service provides thorough cleaning preventing flooding while ensuring environmental compliance through proper disposal practices.
Commercial parking lots feature catch basins (storm drains with grated openings) collecting surface runoff. Basins accumulate leaves, trash, sediment creating blockages. We provide complete catch basin service: debris removal, basin pumping and cleaning, line jetting to main storm system, grate cleaning and maintenance. Prevents parking lot flooding protecting customers and liability. Essential for retail, office, industrial, and multi-unit properties.
Underground lines connecting catch basins to municipal storm systems or discharge points. Lines accumulate sediment and debris reducing capacity. High-pressure jetting removes material restoring proper flow. Large-diameter capabilities (12-24+ inches) handle commercial systems. Camera inspection identifies structural concerns. Critical for preventing property flooding during heavy rain events.
Cities and municipalities maintain extensive storm drainage infrastructure serving public areas and right-of-way. We provide municipal storm drain cleaning services under contract: street storm drains and inlets, public parking areas, park and recreation facilities, roadway drainage systems. High-capacity equipment handles municipal-scale systems. Experienced with municipal specifications and documentation requirements.
Industrial facilities feature yard drains collecting surface runoff from large paved areas, loading docks, equipment yards. Often larger diameter (18-36+ inches) handling industrial-scale volumes. Accumulate heavy sediment, industrial debris, equipment washdown materials. Specialized cleaning prevents operational flooding and environmental compliance concerns. Custom maintenance schedules prevent production disruptions.
Prevent expensive parking lot flooding and property damage with professional storm drain maintenance.
Service begins with comprehensive assessment understanding your storm drainage system. We identify all catch basin locations throughout property, assess system configuration and connection points, evaluate accessible entry points for service, discuss problem areas and flooding history, review previous maintenance and current conditions, plan service approach for efficient thorough cleaning. For large commercial properties or municipal systems, we provide detailed mapping documenting system layout ensuring complete service coverage. Assessment typically takes 30-60 minutes for standard commercial properties, longer for extensive systems requiring comprehensive mapping.
Before line jetting, we remove accumulated debris from catch basins. This critical step removes tons of material preventing line entry. Proper disposal of removed material meets environmental regulations protecting you from liability. Some properties generate multiple truckloads of debris—particularly fall cleaning after leaf season.
With basins clean, we jet underground storm drain lines connecting basins to discharge points. Deploy high-capacity equipment through basin access points, advance heavy-duty hoses through lines (100-500+ feet typical commercial runs), activate sustained high-pressure cleaning (4,000+ PSI) removing all sediment and buildup, use specialized nozzles for storm drain debris (different from sanitary sewer applications), flush debris downstream to collection point or final basin, make multiple passes ensuring thorough cleaning of large-diameter pipes. Storm drain jetting requires significant water volume and sustained operation—proper equipment essential for effective results. Process takes 3-8 hours depending on system size, line length and diameter, and accumulation severity. We work efficiently completing service while ensuring comprehensive cleaning.
After cleaning, we recommend camera inspection documenting results and system condition. Video inspection reveals clear lines after cleaning, identifies structural issues requiring attention (cracks, breaks, deterioration), documents root intrusion entry points, verifies proper drainage function, provides visual proof of service quality. For properties with recurring flooding despite cleaning, camera inspection often reveals structural problems preventing proper function—collapsed lines, severe root damage, improper installation. Documentation serves property management records and due diligence. Insurance claims for flooding benefit from camera evidence documenting system condition. We provide video footage on USB drive or email for your permanent records.
Fall leaf accumulation is primary storm drain challenge—mature parking lot trees drop tons of leaves annually. Leaves enter catch basins through grates, decompose creating thick sludge, block drain lines when compacted. Spring brings pollen, seed pods, grass clippings from landscape maintenance. Organic material decomposes reducing oxygen and creating environmental concerns. Professional removal prevents blockages and environmental violations. Fall cleaning essential for properties with significant tree coverage.
Dirt, sand, and sediment wash from landscaping, parking areas, and adjacent properties during rain. Settles in storm drain lines. Winter sand and salt accumulate heavily. Construction sites generate extreme sediment loads requiring frequent cleaning. Sediment gradually fills systems reducing capacity until complete blockage. High-pressure jetting removes compacted sediment restoring full drainage capacity. Essential for preventing progressive capacity loss.
Litter, trash, and foreign objects enter storm drains creating blockages: cigarette butts and small items accumulate heavily, plastic bags and bottles, shopping carts and large objects dumped illegally, construction debris from site work. Large objects create immediate complete blockages. Accumulation of small items gradually restricts flow. Manual removal of large material followed by jetting clears all debris. Proper disposal prevents environmental violations.
Tree roots seeking moisture infiltrate storm drain lines through joints and cracks. Roots create severe blockages and structural damage. Common in older systems with clay or concrete pipe. Specialized root cutting equipment combined with hydro jetting provides thorough removal. However, roots regrow unless entry points sealed—pipe lining provides permanent solution after root removal preventing future intrusion.
$350-$900
Per service depending on system size and complexity
Pricing Factors: Number of catch basins requiring service (each basin adds material and time), system size and line length (larger properties cost more), accumulation severity (heavily filled systems require more time), debris volume and disposal costs (fall leaf season increases disposal), accessibility and site conditions (difficult access increases labor), additional services (root cutting, camera inspection, structural repairs).
Seasonal Considerations: Fall cleaning after leaf season typically costs 20-30% more than spring cleaning due to heavy debris loads—literally tons of leaves from mature parking lot trees. Plan accordingly budgeting higher fall service costs. System Age and Condition: Well-maintained systems with regular cleaning cost less than severely neglected systems requiring extensive cleaning and potentially structural repairs. First-time cleaning of long-neglected systems often costs double standard rates due to extreme accumulation.
Property Size and Complexity: Small retail with 2-3 basins costs far less than large shopping centers with 20+ basins and extensive underground systems. Industrial facilities with oversized drains (18-36 inch diameter) require specialized equipment increasing costs. Municipal systems charged per linear foot or per structure based on extensive scope. Emergency vs. Scheduled: Scheduled preventive maintenance costs standard rates. Emergency flooding response during or after rain events costs same rates but requires immediate dispatch—scheduling preventive service saves expensive emergency situations.
Flooding Damage Costs: Parking lot flooding creates expensive consequences far exceeding cleaning costs including water infiltration into buildings ($10,000-$50,000+ repairs), parking lot deterioration from standing water (pavement damage, pothole formation), vehicle damage claims and liability ($5,000-$25,000 per vehicle), slip and fall liability in flooded areas, business disruption when parking inaccessible, property value impact from visible neglect. Single flooding event damage easily costs 10-50 times annual maintenance investment—preventive cleaning is smart financial decision.
Long-Term Cost Comparison: Annual preventive maintenance $600-$900 (twice yearly cleaning at $300-$450 each) versus emergency flooding response plus damage repairs $15,000-$75,000+ total. ROI is exceptional—every dollar spent on preventive maintenance saves $20-$100 in avoided flooding damage and emergency costs. Professional property managers recognize this value prioritizing storm drain maintenance protecting property investment and operations. Contract Programs: Annual maintenance contracts provide 10-15% discount off per-service rates plus priority scheduling, automatic seasonal service reminders, consistent technician familiarity with property. Predictable budgeting versus unpredictable emergency expenses.
Large puddles or standing water in parking lots persisting hours after rain indicate inadequate drainage from blocked storm drains. Water should drain within minutes of rain stopping—standing water means catch basins or lines filled with debris preventing flow. Progressive worsening over months or years as material accumulates. Immediate cleaning required preventing parking lot damage and liability concerns from vehicle and pedestrian hazards.
Water draining noticeably slower than previously—taking 30-60 minutes instead of 5-10 minutes—indicates partial blockage from accumulating debris. Gradual capacity reduction as sediment and material fill system. Without cleaning, progresses to complete blockage and flooding. Address slow drainage proactively before complete failure occurs during heavy rain event creating expensive emergency situation.
Looking into catch basins reveals accumulated leaves, trash, or sediment near grate level or filling visible sump area. Proper catch basins have 18-24+ inches depth below outlet pipe providing sediment storage—when filled to outlet level, debris enters lines creating blockages. Visible accumulation signals service needed. Fall leaf season often fills basins completely requiring immediate cleaning before winter rain and spring thaw.
Parking lot flooding during heavy rain events indicates system capacity exceeded from blockages. Water backs up from catch basins unable to handle volume. May flow across parking lot, into landscaping, or toward buildings. Severe situation requiring immediate emergency response preventing property damage. After addressing immediate flooding, comprehensive cleaning and inspection determine underlying causes—often years of neglected maintenance allowing complete system failure.
Seasonal Timing: Schedule fall cleaning before leaves drop completely (late October/early November) or immediately after leaf season. Schedule spring cleaning after winter (April/May) removing accumulated sand, salt, and debris before heavy spring rains. Proactive seasonal timing prevents problems rather than reacting to emergencies.
Most Recommended Program: Twice-yearly service addressing seasonal accumulation before problems develop.
Fall Service (October/November): Remove accumulated leaves before or immediately after leaf drop, prevent winter freezing of water-filled basins, prepare system for winter precipitation and spring thaw. Critical timing for properties with significant trees—missed fall cleaning creates expensive spring problems.
Spring Service (April/May): Remove winter sand and salt accumulation, clean debris from snow melt and spring storms, prepare system for summer thunderstorms and heavy rain, verify winter did not damage infrastructure.
Investment: $300-$450 per seasonal service ($600-$900 annually total). Prevents flooding, protects property, maintains parking lot aesthetics. Best value for properties with trees or heavy debris generation. Most popular maintenance approach for commercial properties.
Best For: Properties requiring predictable budgeting and guaranteed service scheduling.
Contract Benefits: 10-15% discount off standard per-service rates, priority scheduling ensuring service when needed (critical during busy fall season), automatic service reminders eliminating tracking burden, consistent technician familiarity with property systems, comprehensive documentation for property management records, emergency response priority if flooding occurs.
Flexible Options: Annual single cleaning (properties with minimal debris), twice-yearly seasonal cleaning (most common and recommended), quarterly cleaning (properties with extreme debris generation). Custom schedules available matching property needs.
Investment: Varies by frequency—annual $500-$800, twice-yearly $600-$900 with discount, quarterly $1,200-$2,000 with volume discount. Predictable known costs versus unpredictable emergency expenses. Smart investment protecting property and preventing disruptions.
Available 24/7: When parking lot flooding occurs during or after rain events, immediate response minimizes damage and restores drainage.
Rapid Response: Call our emergency line (313) 488-3834, immediate dispatch upon contact, typical arrival 60-90 minutes in service area, complete equipment on trucks ready for immediate action, experience resolving emergencies quickly and effectively.
Standard Rates Apply: No premium surcharges for emergency service nights, weekends, or holidays. Fair pricing even during emergencies. However, emergency situations often require more extensive work than scheduled preventive maintenance—severely flooded systems may need multiple service visits for complete restoration.
Prevention vs. Reaction: Emergency response costs same rates but addresses worse conditions requiring more time. Preventive maintenance prevents emergencies entirely—much better approach saving time, money, and stress. Smart property managers schedule preventive service avoiding emergency situations.
and all Wayne and Monroe County communities.
Storm drain cleaning costs $350-$900 for typical commercial properties depending on system size. Single catch basin $150-$300. Small systems (2-4 basins) $350-$600. Standard properties (5-10 basins) $600-$900. Large systems $900-$2,000+. Pricing depends on number of basins, line length, debris volume, and service scope. Annual contracts provide 10-15% discounts.
Most commercial properties need storm drain cleaning twice yearly—fall after leaf season and spring after winter. Properties with heavy tree coverage may need additional fall service. Minimal debris properties may suffice with annual cleaning. Industrial facilities generating heavy sediment need quarterly service. We assess your property establishing appropriate frequency based on debris generation, system size, and observed accumulation patterns.
Yes. We provide storm drain cleaning services for municipalities under contract including street storm drains and inlets, public parking areas, park facilities, roadway drainage systems. High-capacity equipment handles municipal-scale systems. Experienced with municipal specifications, documentation requirements, and public works standards. Contact us for municipal service proposals and contract options.
Yes. Tree roots infiltrate storm drain lines creating blockages and structural damage. We use specialized root cutting equipment combined with hydro jetting for thorough removal. However, roots will regrow unless entry points sealed. We recommend pipe lining after root removal providing permanent solution preventing future intrusion—seals all cracks and joints eliminating root access. Camera inspection identifies extent of root damage determining appropriate repair approach.
Storm drains clog from accumulated debris including fall leaves and organic material (primary cause for most properties), sediment and mud from parking lots and landscaping, trash and foreign objects, winter sand and salt, root intrusion in older systems. Without regular cleaning, material accumulates over years creating complete blockages. Preventive seasonal cleaning removes material before blockage problems develop preventing flooding and damage.
Yes. Camera inspection after cleaning documents clear lines and identifies structural issues. Video reveals system condition, root intrusion, cracks or breaks requiring repair, improper connections or installation. Essential for properties with recurring flooding despite cleaning—often reveals structural problems preventing proper function. We provide video footage for your records. Camera inspection typically adds $200-$350 or included with comprehensive service.
Yes. We provide 24/7 emergency response for parking lot flooding situations. Call (313) 488-3834 for immediate dispatch. Typical arrival 60-90 minutes in service area. Standard rates apply with no emergency surcharges even nights, weekends, or holidays. Complete equipment on trucks ready for immediate action. However, preventive maintenance prevents emergencies entirely—much better approach than reactive emergency response.
Storm drain cleaning typically takes 3-8 hours depending on system size and complexity. Small systems (2-4 basins) 2-4 hours. Standard commercial properties (5-10 basins) 4-6 hours. Large systems 6-8+ hours. Severely filled systems or first-time cleaning of long-neglected systems require more time. We work efficiently minimizing time while ensuring comprehensive thorough cleaning preventing future problems.
Three decades maintaining commercial storm drainage systems in Wyandotte, Monroe, and Downriver
Basin cleaning, debris removal, line jetting, camera inspection—comprehensive approach
Qualified for municipal contracts meeting public works standards and specifications
Proper disposal of removed material meeting EPA and state regulations
Michigan licensed, fully insured, workers compensation coverage
Consistently excellent service for commercial property managers
Industrial 4,000+ PSI systems handling large-diameter storm drains up to 36+ inches
Spring and fall cleaning with discounted rates and automatic scheduling
Document results and identify structural issues requiring attention
Immediate dispatch for flooding situations, standard rates no surcharges
Upfront quotes, no hidden fees, predictable contract pricing
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Protect your commercial property with professional storm drain maintenance
