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50+ Years
experience
Emergency
services
Your Trusted HVAC Partner in Castroville, TX
Zinsmeyer Air Conditioning & Heating has been a trusted provider of heating, ventilation, and air conditioning services since 1960, serving Castroville, Texas, and surrounding areas. Our team of specially trained technicians delivers prompt, reliable service for residential and commercial HVAC systems, including installations, repairs, maintenance, and 24/7 emergency solutions. As a certified Independent Trane Comfort Specialist, we prioritize customer satisfaction through high-quality equipment, ongoing technician training, and a 100% satisfaction guarantee.

Our commitment to excellence is reflected in decades of experience, transparent pricing, and a focus on energy-efficient systems tailored to Texas' climate. We offer financing options to ensure accessibility and maintain a 24/7 on-site service promise, backed by a legacy of community trust and over 50 years of operational expertise.
Services
HVAC Installation AC Repair Furnace Maintenance 24/7 Emergency Service Air Quality Solutions
Details
  • Year established: 1960
Highlights and features
  • Over 50 years of HVAC experience since 1960
  • 24/7 emergency service available
  • Certified Trane Comfort Specialist technicians
  • Financing options for all budgets
  • 100% satisfaction guarantee on all work
Associations and certifications
  • Trane Comfort Specialist
What people say
Great service Professional and helpful Fantastic! Thank you Prompt and efficient Thorough and courteous
Services
HVAC Installation
We specialize in installing high-efficiency HVAC systems tailored to residential and commercial needs. Our certified technicians ensure proper sizing and configuration for optimal performance. Backed by manufacturer warranties and our 100% satisfaction guarantee, we use top brands like Trane to deliver lasting comfort solutions.
AC Repair
Our 24/7 emergency AC repair service addresses system failures promptly. Technicians diagnose issues using advanced tools and provide transparent pricing before repairs. We service all brands and maintain fully stocked vehicles to resolve common failures efficiently and cost-effectively.
Furnace Maintenance
Regular furnace maintenance ensures reliable winter operation. Our technicians inspect components, clean systems, and identify potential issues. Scheduled maintenance plans help extend equipment lifespan and maintain energy efficiency for residential and commercial clients.
24/7 Emergency Service
We provide round-the-clock emergency HVAC services for urgent system failures. Certified technicians respond promptly to after-hours calls, with no additional fees for nighttime or weekend service. Our on-call team ensures critical heating and cooling needs are met immediately.
Air Quality Solutions
We offer air purification systems like Trane CleanEffects and REME HALO technology to improve indoor air quality. These solutions reduce allergens, odors, and pollutants in residential and commercial spaces. Our experts recommend customized filtration and ventilation strategies for healthier indoor environments.
Questions
What HVAC services do you offer?
We provide installation, repair, and maintenance for heating, air conditioning, and ventilation systems, including 24/7 emergency services and air quality solutions.
Do you service both residential and commercial clients?
Yes, we serve both residential homeowners and commercial businesses with customized HVAC solutions for all system types and sizes.
Are financing options available?
Yes, we offer Wells Fargo Home Projects credit card financing for HVAC equipment purchases and installation services.
What areas do you service?
We serve Castroville, TX and surrounding areas including Boerne, Kerrville, New Braunfels, San Marcos, and Wimberley.
Are you a certified Trane dealer?
Yes, we are a certified Independent Trane Comfort Specialist, meeting the highest standards for Trane product expertise and service.
What is your service guarantee?
We guarantee our work with a 30-day 100% satisfaction promise. If issues recur, we return at no additional cost to resolve them.