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"Great service. Called within the time period stated to schedule the appointment and the appointment was carried out within two days of that. The men called when they were about 10 mins. out to let me know they were coming and they came right at the start of the 2 hour window that was indicated at scheduling. They were very professional and concerned about not tracking dirt into the house. While they did introduce the idea of an ultra violet air purification system for the furnace, it was straight & to the point (I wasn't aware of these systems & appreciated the info) with no upsell/hard sell tone to it. This company also does electrical work and, based on this experience, I will try using them for that as soon as I get my electrical 'punch list' prepped.Furnace checkup in prep for cold weather as part of a coupon deal."
<https://www.greenhvacair.com/residential/indoor-air-quality/>