Business Details
Emergency
services
Trusted HVAC Solutions in Sycamore, IL
Smith-Smith-Dahlquist has been a trusted name in HVAC services for over 25 years, serving Dekalb County and surrounding areas. Our mission centers on delivering personalized comfort solutions that prioritize customer satisfaction, reliability, and technical excellence. Recognized as the Best HVAC Service Company by the Daily Chronicle Readers Choice Awards for three consecutive years, we combine decades of industry experience with cutting-edge technology to meet residential and commercial needs. Our team of N.A.T.E.-certified professionals specializes in heating, cooling, fireplace installation, and indoor air quality systems, ensuring every project reflects our commitment to quality craftsmanship.With 24/7 emergency service availability and flexible financing options, we remain dedicated to providing accessible, dependable solutions. Our showroom features top brands like Trane, Rheem, and American Hearth, while our in-house sheet metal fabrication capabilities enable customized system installations. From routine maintenance to complete system replacements, our approach emphasizes long-term customer relationships built on transparency, expertise, and exceptional service delivery.
Services
Heating
Cooling
Fireplaces
Indoor Air Quality
Tune-Ups
Thermostats
Boiler Systems
Highlights and features
- 24/7 emergency service availability
- N.A.T.E. certified technicians
- Over 25 years serving local communities
- Free in-home estimates for replacements
- 15% discount on repair services
Associations and certifications
- N.A.T.E.
What people say
Excellent job
Professional and knowledgeable
Cleaned up everything
Prompt service
No pressure sales
Services
Heating
Our heating solutions feature high-efficiency Trane and Rheem furnace systems with AFUE ratings up to 97.3%. We specialize in installation, maintenance, and repair of gas and electric heating systems. Our technicians provide precision tune-ups that include heat exchanger cleaning, burner assembly adjustments, and airflow optimization to ensure maximum efficiency and longevity of your heating equipment.
Cooling
We offer premium cooling systems including Trane models with SEER ratings up to 22. Our installation process ensures proper system sizing and ductwork optimization. Service technicians perform comprehensive cooling diagnostics, refrigerant pressure testing, and condenser coil cleaning to maintain peak performance and energy efficiency throughout the summer months.
Fireplaces
We install and service direct vent, vent-free, and gas log fireplace systems from American Hearth, Majestic, and Mendota. Our experts handle complete fireplace installations, insert conversions, and venting system upgrades. We also offer fireplace door replacements and maintenance services to enhance safety, efficiency, and aesthetic appeal of existing units.
Indoor Air Quality
Our indoor air quality solutions include Trane CleanEffects air cleaners that capture 99.98% of airborne particles. We install whole-house humidifiers, electronic air cleaners, and Air Scrubber systems that eliminate contaminants down to 0.1 micron size. Our technicians also provide dryer vent cleaning services to improve air quality and reduce fire hazards.
Tune-Ups
Our precision tune-up service includes 15+ point system inspections covering electrical connections, blower components, and refrigerant levels. We clean ignition assemblies, test safety controls, and measure airflow to optimize system performance. Annual maintenance customers receive priority service status, repair discounts, and inflation protection benefits.
People
Shelley Smith
President
Shelley has led Smith-Smith-Dahlquist since 2016 after 20 years in operational roles. With HVAC industry experience since 1996, she oversees business strategy while maintaining customer service standards. A Sycamore resident, she balances family time with outdoor activities along The Great Western Trail.
Johnnie Smith
Vice President
Johnnie brings 14 years of HVAC leadership and 30+ years construction experience to his role. A lifelong Sycamore resident, he manages technical operations while supporting local sports teams. His mechanical expertise ensures quality control across all installation and service projects.
Brad Cobb
General Manager
With 30 years in HVAC, Brad oversees daily operations and customer relations. A Sycamore native, he combines technical knowledge with hands-on problem solving. His team leadership ensures seamless project execution from initial consultation through final installation.
Hanah W.
Office Manager
Hanah manages client scheduling and service coordination since joining full-time in 2024. After graduating from Northern Illinois University, she became our customer service hub. New to parenthood, she maintains operational efficiency while supporting field teams.
Mick P
Boiler Manager
Mick contributes 38 years of HVAC expertise specializing in commercial boiler systems. His technical mastery spans residential to industrial applications. When not managing complex installations, he enjoys motorcycle rides and family gatherings with his four daughters.
Questions
What areas do you service?
We serve Dekalb County and surrounding areas including Sycamore, Genoa, and Lake Zurich. Our service territory covers both residential and commercial properties within a 30-mile radius of our Sycamore location.
Do you offer emergency HVAC services?
Yes, our service department operates 24 hours a day, 7 days a week. We provide emergency heating and cooling repairs with no overtime charges for after-hours service calls.
What financing options are available?
We offer flexible financing plans for HVAC replacements and major repairs. Our customers can access special promotions with approved credit, including low-interest and no-interest payment options for qualified applicants.
Are your technicians certified?
All our service technicians are N.A.T.E. certified, with specialized training in Trane, Rheem, and American Hearth products. Our team maintains ongoing education to stay current with evolving HVAC technologies.
What maintenance plans do you offer?
Our Energy Savings Agreements include annual precision tune-ups, 15% repair discounts, and priority service scheduling. Plans are transferable and include emergency service coverage with no overtime fees.
Can you service older HVAC systems?
Yes, we service all brands and models including older systems. Our technicians can upgrade existing equipment with modern controls, improve efficiency through ductwork modifications, and provide retrofit solutions for legacy HVAC units.
