Coverage requirements
Waterproofing Service Contractors
Last updated August 2026 · Maintained and reviewed by the Advocate Insurance Consultants coverage research team.
Overview
What an adequately protected Waterproofing Service Contractors program looks like
Waterproofing contractors correct water-related problems such as mold, mildew, and cracked walls in residential, commercial, and industrial buildings. Faulty work can leave lasting moisture damage, and crews use heavy vibrating tools. Products-completed operations and workers' compensation are the leading exposures, driven by damage from incorrect waterproofing and heavy tool use. Covering Auto Liability, General Liability, Worker's Compensation, Fidelity Bond, Physical Property among other essential lines, this Advocate Standard profile sets limit, deductible, and carrier-quality benchmarks calibrated to the real risk waterproofing service contractors carry.
Key takeaways
- Spans 141 published requirements across 40 coverage type-peril pairs.
- Applies to 2 asset types: Contractor, Industrial.
- Covers 14 coverage types and 14 distinct perils.
At a glance
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Completion score
9 of 40 WIM pairs required
Coverage tower
Required limits by coverage type and peril
Requirements
Full requirement set for Waterproofing Service Contractors
Every requirement in the Advocate standard, 141 rows across limits, deductibles, carrier rating, and presence checks. Search and filter to drill in.
Showing 50 of 141 matching · 141 total
Compliance
Who requires Waterproofing Service Contractors
- Waterproofing service contractor insurance is required by the building owners, property managers, general contractors, and homeowners who hire crews to correct moisture problems.
- Property managers and commercial owners require general liability and workers' compensation, with additional-insured status, because waterproofing directly affects whether a building leaks and grows mold.
- General contractors on new construction and renovation demand COIs and waivers of subrogation from the waterproofing sub.
- Lenders and mortgagees financing affected properties want proof of coverage.
- Brokers placing the account and investors reviewing the operation rely on these lines to keep a waterproofing service contractor compliant, since faulty work carries a long-tail moisture-damage exposure that owners are careful to shift.
Carrier standard. Carrier must have AM Best rating >= A- and size >= VII.
Advocate runs these checks automatically for the brokers who place construction & trade contractors coverage.
Exclusions
What Waterproofing Service Contractors does not cover
- Since waterproofing service contractor insurance benchmarks liability, auto, property and workers' compensation, certain exposures receive no protection here.
- Nowhere does the schedule pick up professional liability for moisture-control design errors, cyber liability, and employment practices liability.
- Under the "your work" and faulty-workmanship exclusions in the general liability form, redoing a failed waterproofing application remains an expense the business absorbs.
- Most importantly, mold and fungus are limited by a sublimit rather than fully insured, a serious gap for a trade whose failures produce mold.
- Pollution liability is not included, leaving solvent, coating, and chemical-vapor exposures largely excluded.
- Damage that surfaces months after a job and care-custody-control of the client's structure may also be contested under the base lines.
Risk advisory
Typical coverage gaps in Construction & Trade Contractors
Waterproofing service contractors face a defining gap: their work exists to prevent moisture and mold, yet standard policies limit fungus coverage with a sublimit.
- Review that limited-fungus sublimit closely and secure higher mold and water-damage protection, since a failed application can cause exactly the loss customers hired the contractor to prevent.
- Confirm products-completed operations limits are ample and remain in force after each job, because moisture damage often appears months later.
- Because crews apply coatings and solvents, add contractors pollution liability for chemical-vapor exposures the pollution exclusion removes.
- Verify inland marine covers vibrating tools and application equipment.
- Maintain additional-insured and waiver endorsements for property managers and general contractors, and confirm hired and non-owned auto covers crew vehicles between sites.
FAQ
Frequently asked questions
What insurance do waterproofing contractors need?
Waterproofing service contractors generally need general liability, workers' compensation, commercial auto, and inland marine for tools and equipment. Because their work prevents moisture and mold, strong completed-operations coverage and a reviewed mold sublimit are essential. Property managers and general contractors commonly require additional-insured status and a certificate of insurance before waterproofing work begins.
Does waterproofing insurance cover mold claims?
Waterproofing contractor general liability usually limits mold and fungus coverage with a sublimit, so a large mold claim from a failed application may exceed available coverage. Because waterproofing failures directly cause moisture and mold, this is the most important gap for the trade. Contractors should review the fungus sublimit and secure higher mold protection where possible.
Why do waterproofing contractors need completed-operations coverage?
Waterproofing service contractors need completed-operations coverage because moisture and mold damage from a defective application often appears months after the job ends. Completed-operations coverage responds to these delayed claims from finished work. Given that a failed waterproofing job produces exactly the damage clients wanted to avoid, high completed-operations limits are critical for this trade.
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