DIAMOND HEATING & COOLING SERVICES, Inc

Is this your business?
Claim your listing to verify your info and earn a verified badge.
Claim This BusinessAbout DIAMOND HEATING & COOLING SERVICES, Inc
Diamond Heating & Cooling Services, Inc operates from Winston-Salem, North Carolina, delivering heating and cooling solutions to homeowners across the Piedmont Triad region. The company maintains a solid 4.4-star average rating drawn from 28 client reviews, reflecting consistent service quality in a market where such ratings signal dependable craftsmanship. Their 24-hour availability ensures residents of Winston-Salem and surrounding communities have access to emergency HVAC support regardless of when system failures occur. As a regional contractor, they understand the particular demands of North Carolina summers, where AC failures during triple-digit stretches create urgent service needs.
What distinguishes this contractor emerges in how they approach each service call. Reviewers note they will install customer-provided parts rather than forcing expensive proprietary components, a flexibility uncommon among warranty-conscious competitors. During one extreme heat event, a technician arrived the morning after a Sunday breakdown, assessed a failed original-system unit, presented three replacement options, and completed full installation by 5:00 the following day. Cindy Hill's experience further illustrates their practical approach: she sourced a $400 replacement board online, and Diamond installed it for significantly less than competitors would have charged for their own branded boards plus labor. The company offers 24/7 dispatch, same-day diagnosis, and transparent pricing on parts and labor.
Customer stories name specific technicians who delivered these results. Daymond Milam's brief review references Derien directly, describing him as a hardworking professional with evident character. For Jonesant, the team turned a worst-case summer scenario into a resolved matter within 48 hours. Bob's review of his ductwork and exhaust fan installation notes on-time arrival and professional execution. These accounts collectively describe a contractor that acts quickly on emergency calls, explains options clearly, and completes installations efficiently.
What Customers Say
Five of six reviewers award perfect marks, with specific praise for same-day arrival during heat emergencies, flexible parts sourcing, and transparent pricing. The lone mixed review cites a missed callback rather than service quality. Keywords across positive reviews include prompt, thorough, honest, excellent, and professional.
Working Hours
| Sunday | Open 24 hours |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| ThursdayToday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Services
24/7 Emergency HVAC Repair
Round-the-clock dispatch for heating and cooling emergencies, with same-day diagnosis available.
AC System Replacement
Full-system replacement with multiple options, installed within 24-48 hours of selection.
Ductwork Fabrication & Installation
Custom duct routing and exhaust fan installation performed by professional technicians.
System Board Repair
Replacement of control boards including zone controllers and smart thermostats, with flexible parts sourcing.
Preventive Maintenance
Seasonal tune-ups and diagnostics designed to extend system lifespan and prevent emergencies.