Johnstone Supply

Johnstone Supply in Mesquite operates as a contractor-only HVAC equipment distributor, serving licensed professionals rather than residential customers. Located in the Dallas-Fort Worth metro area, this well-stocked supply house has earned a 4.7-star rating from 30 reviews, with staff consistently praised for product knowledge and customer assistance. Operating hours extend from 7 AM to 5 PM on weekdays, with Saturday availability from 8 AM to noon, making them accessible for contractors sourcing parts between jobs.

What distinguishes this Mesquite location is its extensive inventory depth and specialized staff expertise. Reviewers repeatedly mention the team's ability to source hard-to-find components and guide contractors toward correct parts on first contact. The facility stocks residential unitary systems, mini-split configurations, variable capacity equipment, and commercial packaged units, covering most application scenarios Texas contractors encounter.

Customer testimonials spotlight individual team members delivering exceptional service. One reviewer notes Jonathan consistently goes above and beyond to ensure contractors leave equipped with exactly what the job requires. Another gives a shout-out to Ramiro for his product recommendations. One contractor describes the team as the most helpful they have encountered across 23 states, highlighting the Mesquite location's reputation for knowledgeable support.