How do I evaluate a contractor's previous work quality?

When evaluating a contractor's previous work quality in Ottawa, start by asking for local references from projects completed within the last 2 years, then verify their licensing through ESA or TSSA databases, and personally visit completed projects when possible.

Getting Meaningful References

Ask potential contractors for at least 3-5 recent references from Ottawa-area projects similar to yours. Don't just accept a list of names - request specific details like project scope, timeline, and budget range. Quality contractors will readily provide references and may even offer to arrange site visits to see their completed work firsthand.

When contacting references, ask specific questions: Did the contractor show up on time consistently? How did they handle unexpected issues? Was the final cost close to the original estimate? Would you hire them again? Pay attention to any hesitation in their responses.

Physical Inspection of Previous Work

The best way to evaluate quality is seeing it in person. Ask contractors if any recent clients would allow a brief walkthrough of completed work. Look for clean, straight lines, proper finishing details, and overall craftsmanship. In Ottawa's climate, pay special attention to weatherproofing, insulation details, and how well exterior work has held up through our harsh winters.

Check that electrical work has proper ESA inspection certificates posted, and gas work shows TSSA compliance stickers. These indicate the contractor follows proper permitting processes with the City of Ottawa.

Digital Portfolio Review

Request photos of recent projects, but be aware these can be misleading. Look for consistent quality across multiple projects rather than just showcase pieces. Ask for before, during, and after photos to understand their process and attention to detail during construction phases.

Licensing and Credential Verification

Use ESA's contractor lookup at esasafe.com to verify electrical contractors, and check TSSA.org for gas technicians. Confirm their WSIB clearance certificate is current through wsib.ca/clearances. These verifications tell you about their professional standing and legal compliance.

Red Flags to Watch For

Be cautious if a contractor can't provide local references, only shows photos without allowing contact with previous clients, or seems evasive about permits and inspections. Quality contractors in Ottawa are proud of their work and eager to showcase it.

Also watch for contractors who only provide references from years ago, refuse to let you contact previous clients directly, or can't show proof of proper ESA/TSSA licensing for specialized work.

Professional Association Membership

Check if contractors belong to recognized associations like the Ottawa Construction Association or trade-specific groups. While not mandatory, membership often indicates commitment to industry standards and ongoing education.

Timeline and Communication Assessment

During reference calls, ask about communication quality and project management. Did the contractor provide regular updates? How did they handle change orders or unexpected issues? In Ottawa's construction season constraints, good project management becomes even more critical.

For comprehensive contractor verification and to find pre-screened professionals in your area, check our verified contractor directory at ottawaconstructionnetwork.com/directory. Remember, taking time to properly evaluate previous work quality upfront can save you thousands in potential problems and ensure your project meets Ottawa's building standards.