Google-verified49 Google reviews
Core details are sourced from this business's Google Business Profile (checked 2026-09-25).
Calder responds within hours and often completes jobs the same day. Their team arrives on time, finishes efficiently with quality materials, and leaves no mess. James communicates throughout via photos and regular updates, pricing stays competitive against other quotes, and reviewers consistently praise the professionalism and reliability.
The business handles gutters, eavestroughs, roof repairs, replacements, and soffit work with equal care. Crew members are friendly and straightforward about what work is needed rather than upselling extras. Kitchen renovations and fence repairs also appear in their portfolio. No negative experiences appear in recent reviews.
Most reviews praise Warner Roofing's speed and professionalism, with technicians like Clay arriving quickly after calls and sending documentation of repairs. A handful of older complaints cite phone tag and slow quotes, though recent feedback shows consistent same-day or next-day service.
The crew delivers skilled work on specialty roofs and skylight installations when jobs proceed, with reviewers praising punctuality and clean finishes on cedar, slate, and flat roofs. However, two recent one-star reviews document a no-show appointment with no follow-up and a repair that was completed poorly with unauthorized work and permanent damage to brick facing. The owner, Arthur, charges $60 per estimate (competitors charge nothing) and has reportedly called customers to harass them over negative reviews. Skylight work stands out as a consistent strength: multiple reviewers cite precise sealing and improved light quality. The backlog of positive reviews from 9-11 months ago contrasts sharply with the recent downward shift. A prospective customer should expect either excellent work on specialty roofs or an encounter with unavailability, poor follow-through, and dismissive communication.
No individual customer reviews are available for this business. Their website lists 25 years of operation and Duradek dealer certifications; they cover Newmarket, York Region, Durham, and surrounding areas.
Last updated 2026-09-25