Hy-Mark Home ComfortHVAC contractor in Guelph, ON

Hy-Mark Home Comfort is ranked #6 of 291 HVAC contractors in Guelph by CR Score, with 63 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

Hy-Mark Home Comfort is open 24 hours a day, 7 days a week. Its listed hours are Open 24 hours, 7 days a week. On Saturdays it is open Open 24 hours, and on Sundays Open 24 hours. Hours come from the business listing; holiday hours may differ.

Serves Guelph and 10 towns within 40 km: Cambridge, Milton, Burlington, Waterloo, Kitchener, Ancaster, Hamilton, Brampton, Paris and Oakville. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.

Hy-Mark Home Comfort has a rating of 4.8 from 450 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

Call Hy-Mark Home Comfort on (519) 805-2470. The business is at 500 Maltby Rd E, Puslinch, ON N0B 2J0, Guelph, ON. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.