Mini Split Express

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About Mini Split Express
Mini Split Express operates as a specialized mini-split system contractor serving San Marcos, California, and surrounding communities. Founded and operated by Devon (also referenced as Devin in client testimonials), the company focuses exclusively on ductless heating and cooling solutions rather than generalized HVAC services. The business maintains a five-star rating compiled from 94 client reviews, demonstrating consistent service quality across residential installations and repairs. Operating hours span Monday through Friday from 8 AM to 4 PM reflect a lean, focused operation where the owner frequently participates directly in installations and customer consultations.
What distinguishes Mini Split Express from broader HVAC companies is their narrow specialization in mini-split technology alone. This focused expertise means every truck roll involves specialists who work exclusively with ductless systems, not technicians dividing attention across furnaces, traditional AC units, andheat pumps. Several reviews specifically commend the team's ability to design systems that maintain exterior aesthetics, with one client noting Devin engineered a three-unit configuration that eliminated visible piping from the home's front facade. The company's willingness to invest personal time in client education, including weekend consultations, suggests a business model built on long-term relationships rather than high-volume turn-and-burn service.
Customer experiences documented in reviews present specific scenarios illustrating service dedication. Kelly and Eric Christiansen's testimonial describes Devon arriving on his Sunday day off to walk the homeowners through their system's mobile application, ensuring comfortable operation before future use. Jeremy M., who owns his own service company, noted the lead representative met with him on a Sunday specifically to compare installation approaches, a courtesy he described as exceeding expectations from someone familiar with industry standards. Mark Martin's three-unit residential project involved crew members David and Joey working beneath the home's foundation to route refrigerant lines while maintaining the property's visual appearance.
What Customers Say
Ninety-four verified reviews collectively award five stars, with zero ratings below that threshold. Multiple clients specifically mention the owner traveling to their property on weekends to provide hands-on consultation or troubleshooting, a commitment three separate reviewers highlighted as uncommon in the service industry. Customers repeatedly praise fair pricing alongside technical knowledge, and several reviewers note the crew's careful attention to preserving home aesthetics during installation.
Working Hours
| Sunday | Closed |
| Monday | 8 AM–4 PM |
| Tuesday | 8 AM–4 PM |
| WednesdayToday | 8 AM–4 PM |
| Thursday | 8 AM–4 PM |
| Friday | 8 AM–4 PM |
| Saturday | Closed |
Services
Mini-Split Installation
Complete ductless system installation for new construction, additions, and retrofits with custom line-set routing.
Mini-Split Repair & Maintenance
Diagnostic evaluation and component-level repair for ductless systems including refrigerant servicing.
Multi-Zone Ductless Systems
Installation of multiple indoor units connected to a single outdoor condenser for whole-home zoning.
System Design Consultation
Custom-load calculations and equipment selection considering home layout, insulation, and client preferences.
Ductless System Upgrades
Replacement of aging mini-split equipment with modern high-efficiency alternatives.