What are common red flags in contractor proposals?

When reviewing waterproofing or masonry restoration proposals for commercial, multiunit residential or institutional buildings, decision-makers should be alert to several key warning signs.

One major red flag is a vague or generic scope of work. Proposals that fail to outline exactly what will be repaired, replaced, or protected can lead to misunderstandings, scope creep, or subpar results. Look for proposals that specify which systems, materials, and areas will be addressed, particularly in New England, where freeze-thaw cycles, snow, and seasonal moisture demand tailored solutions.

A lack of detail about materials, installation methods, and manufacturer requirements can also indicate inexperience or shortcuts. For building envelope projects, commercial-grade products and regionally appropriate techniques are essential for long-term durability. Insufficient explanation of prep work, surface cleaning, joint treatment, or substrate repairs should be questioned, as these factors are critical in maintaining water resistance and structural performance over time.

Attention should also be paid to warranty terms. Proposals that offer unclear, blanket, or unrealistic warranties may not stand behind their work or could exclude vital components, leaving the owner exposed to future problems.

Unusually low bids are another warning. While cost control is natural, proposals far below market averages may signal the use of substandard materials, undersized crews, or inadequate safety and compliance practices. In New England, safe job planning is especially important for high-elevation, winter, or public-facing work.

Missing references to pre-project inspection or evaluation is a significant concern. Commercial restoration rarely benefits from a generalized, one-size-fits-all approach. Professional contractors should perform or reference building condition assessments and discuss the importance of site-specific planning before starting work. This approach supports proper diagnosis, long-term water management, and the protection of valuable building assets.

Finally, a credible commercial proposal should reference safety practices, appropriate insurance or licensing, compliance with state or municipal regulations, and the use of manufacturer-approved systems. Omission of these items may expose property owners or managers to unnecessary risk or non-compliance.

Ultimately, proposals should establish clear expectations, prioritize the building’s long-term protection, address New England-specific building challenges, and demonstrate the contractor’s technical knowledge. Evaluating these aspects helps safeguard your investment and supports informed decision-making.