Business Details
Emergency
services
Expert HVAC Services in Boulder, Colorado
Welzig Heating & Air has built a reputation as a trusted provider of HVAC, plumbing, and electrical services since our founding. As a Bryant Factory Authorized Dealer, we adhere to rigorous standards of technical competence, business ethics, and customer satisfaction. Our team includes NATE-certified technicians who undergo continuous factory training and utilize cutting-edge equipment to deliver precise installations, accurate diagnostics, and prompt repairs. We maintain a full inventory of genuine manufacturer replacement parts and operate a state-of-the-art training center to ensure our staff remains at the forefront of industry advancements.Our commitment to excellence extends to personalized service, with custom fittings created in our fabrication shop and a 24/7 emergency response system. We prioritize transparency, offering free estimates, financing options, and satisfaction guarantees while serving Boulder, Longmont, Louisville, and Lafayette, Colorado.
Services
HVAC Installation
Plumbing Services
Duct Repair
Tankless Water Heaters
Maintenance Plans
Highlights and features
- We operate a state-of-the-art training center for continuous technician education.
- Our team holds NATE certifications and Bryant factory training credentials.
- 24/7 emergency services ensure immediate response to critical needs.
- We offer financing options for equipment replacement with approved credit.
- Satisfaction guaranteed through personalized service and quality installations.
Associations and certifications
- Bryant Factory Authorized Dealer
- NATE-certified
Services
HVAC Installation
We specialize in precision HVAC installations, including furnaces, air conditioners, and heat pumps. Our NATE-certified technicians ensure proper system sizing and energy-efficient performance. Backed by Bryant factory training and 10-year limited warranties on registered equipment.
Plumbing Services
Our licensed plumbers handle installations, repairs, and maintenance for residential and light commercial properties. Services include water heater replacement, sump pump installation, and water filtration systems using durable, code-compliant materials.
Duct Repair
We diagnose and repair ductwork leaks, contamination, and airflow issues that impact HVAC efficiency. Our technicians use specialized tools and in-house fabrication capabilities to ensure optimal system performance and indoor air quality.
Tankless Water Heaters
We provide energy-efficient tankless water heater installations and maintenance. These systems offer continuous hot water, space savings, and up to 40% utility bill reductions while lasting twice as long as traditional models.
Maintenance Plans
Our annual maintenance programs extend equipment lifespan and maintain manufacturer warranties. Services include system inspections, component testing, and performance optimization for HVAC, plumbing, and electrical systems.
People
Jim & Jalene W
Owners
Founders of Welzig Heating & Air, they established the company's core values of trust, technical excellence, and customer-first service. They oversee operations and strategic growth.
Casey W
Outside Sales Manager
Manages customer acquisition and project consultations, ensuring clients receive tailored solutions that match their HVAC, plumbing, and electrical needs.
Cassy B
Inside Sales Manager
Coordinates sales operations and customer service, maintaining Welzig's commitment to prompt, professional communication and satisfaction guarantees.
Dave K.G.
Install Manager
Supervises installation teams, ensuring all projects meet Welzig's standards for technical precision, code compliance, and timely completion.
Bill K
General Manager
Oversees daily operations across departments, maintaining quality control and adherence to company protocols for service delivery and customer satisfaction.
Questions
What HVAC services do you offer?
We provide installation, repair, and maintenance for furnaces, air conditioners, heat pumps, ductwork, and indoor air quality systems.
Do you offer emergency services?
Yes, our 24/7 emergency response team handles urgent HVAC, plumbing, and electrical issues year-round.
Are financing options available?
Yes, we offer financing plans for equipment replacement with approved credit to qualified customers.
What areas do you service?
We serve Boulder, Longmont, Louisville, Lafayette, and surrounding Colorado communities.
How can I schedule service?
Call us at (720) 336-3777 or book online through our website for prompt scheduling.
What certifications do your technicians hold?
Our team includes NATE-certified technicians and Bryant factory-trained professionals.
