How do I know if a contractor is using quality materials?

Determining whether a contractor is using quality materials involves a combination of documentation, transparency, and knowledge of industry standards. For commercial and institutional properties in Massachusetts and New England, proper materials selection is essential due to challenges like freeze-thaw cycles, heavy precipitation, and exposure to deicing salts.

Professional contractors provide clear, written specifications outlining the materials proposed for waterproofing, masonry restoration, or envelope protection. Ask for manufacturer technical data sheets and product approvals. Reputable products are typically supplied by industry-recognized manufacturers and comply with standards set by ASTM, AAMA, or other relevant organizations. For building envelope and structural repairs, products should be approved for use in environments exposed to moisture, salt, and significant temperature fluctuations.

Contractors should also be able to explain why a particular product or system is recommended. For example, New England projects often require masonry mortars, sealants, coatings, and waterproofing membranes formulated for freeze-thaw durability and chemical resistance. Commercial-grade materials typically carry documented field performance, third-party testing, and may be required by codes or architectural specifications.

Quality-focused contractors maintain direct relationships with manufacturers, stay current with advancements in material science, and follow manufacturer-recommended installation practices. If a project calls for manufacturer warranties or system approvals, your contractor should be able to explain these requirements and handle any necessary coordination or documentation.

Before work begins, review the material submittals or data sheets. Inspect packaging and product labeling during installation as appropriate. Ask for references to view past projects that used the same materials in similar New England conditions. Quality materials must also be installed properly, which is why trained personnel, following documented processes, are as important as the products themselves.

A proactive, quality-driven contractor will help you protect your building assets for the long term, supporting preventative maintenance and ongoing building performance, especially in New England’s variable climate.