Run a free full auditMills Brothers Charleston is an HVAC Company in North Charleston, SC. The business provides heating and cooling products and services to residents in the Charleston area and surrounding communities. Mills Brothers Heating and Air assists customers who are in the market for a new HVAC system, those looking to upgrade their current equipment, and individuals in need of maintenance service or repair. The company works in conjunction with SCE&G and Berkeley Electric Cooperative to support whole home energy saving initiatives. With a rating of 4.50 based on 44 reviews, the business maintains a solid reputation among the customers it has served.
The experienced team at Mills Brothers Heating and Air understands the challenges the local climate poses for Low Country residents, particularly regarding air quality and temperature control for those with allergies or respiratory problems. The company strives to provide affordable and energy-efficient heating and cooling systems, aiming to keep homeowners comfortable year-round while controlling energy bills. Mills Brothers Heating and Air offers annual maintenance for HVAC systems, which includes an in-depth complete system inspection. During these visits, the outdoor coil is cleaned, the amp draw of the compressor and motors is tested, and electric wires and components are inspected. The service also checks airflow and proper refrigerant charge, noting any issues and recommending repairs.
For heat pump systems, service is performed once a year in the spring. Separate systems that heat and cool receive maintenance in both the spring and fall. Furnaces are inspected in the fall, with heating elements, burner assemblies, ignition systems, and safety controls checked and adjusted. The company also recommends annual service for dehumidifiers, humidifiers, and tankless water heaters, which can be included with the maintenance service. For residential locations, Mills Brothers offers quarterly maintenance that includes filter changes, flushing and brushing the drain line, cleaning the drain pan, and a visual system inspection. The business is located at 5474 N Rhett Ave, North Charleston, SC 29406.
Mills Brothers Charleston holds a steady record of repeat and referred customers, reflecting the trust placed in its trained team of professionals. The company takes pride in its green principles, offering products and services that are environmentally sound while providing ultimate comfort and health. With a passion for quality work at competitive prices, the team customizes each system to meet specific customer needs. The company also offers free energy consultations.
By combining technical expertise with a focus on energy efficiency and air quality, Mills Brothers Heating and Air ensures that North Charleston residents enjoy comfortable and healthy living environments throughout the year.
BizScoreAI awards the business a Performance score of 85 out of 100, which measures website loading speed to keep visitors engaged and aid search engine rankings. The company ranks number 3 of 4 HVAC Company businesses that BizScoreAI has scored in North Charleston.
BizScoreAI scanned the website millsbroshvac.com on September 21, 2026. Mills Brothers Charleston has a BizScore of 44 out of 100.
AI visibility scan by category: AI Discovery 10 of 25 points, Structured Data 0 of 25 points, Content Readiness 10 of 30 points, AI Trust Signals 2 of 20 points.
Website audit sub-scores (out of 100): On-Page 58, Technical 64, Performance 85, Content 66.
Strengths: 2 checks passed. AI Crawler Access, AI Content Blocking.
Areas to improve: 13 checks. llms.txt (failed), Structured Data (failed), Google Business Profile Link (failed), LocalBusiness Schema (failed), Third-Party Review Links (failed), Q&A Content (failed), Meta Description (failed), Hyperlocal Targeting (warning), Local Multimedia (warning), AI-Parseable Headings (warning), About/Team Page (warning), XML Sitemap (warning), Author Signals (warning).
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