Your hvac installation specialists in Duncan, OK. Free assessments, certified technicians, and guaranteed results.
Replacing your Duncan, Oklahoma HVAC system with properly sized, high-efficiency equipment can reduce energy costs by 30 to 50 percent while improving comfort in every room. KIC Refrigeration handles equipment selection, ductwork modifications, refrigerant line installation, electrical upgrades, and full commissioning to verify rated SEER and AFUE performance from day one.
Duncan homeowners and businesses count on reliable hvac installation to maintain comfort and protect indoor air quality. Serving a city of 23,434 across Oklahoma, KIC Refrigeration brings the experience and crew depth to handle hvac installation projects of any scale. We begin every job with an honest evaluation and a clear, written estimate.
Our hvac installation technicians in Duncan, OK are NATE-certified, EPA 608 licensed, and equipped with advanced diagnostic tools. From the initial inspection through final commissioning, we maintain open communication and hold ourselves to the highest standards. That is how KIC Refrigeration has earned the trust of homeowners across Oklahoma.
A clear, step-by-step approach to every hvac installation project we take on.
We survey your property, assess your existing HVAC infrastructure, and perform a Manual J load calculation to determine the correct system size. We evaluate ductwork condition, electrical capacity, and equipment location options.
KIC Refrigeration provides Duncan, OK homeowners with a transparent equipment proposal that includes AHRI-matched system model numbers, certified efficiency ratings, projected energy cost savings versus your current system, all available rebates, a complete scope of work, and a fixed-price guarantee with no change orders.
At your Duncan property, our team removes the old system, installs the new equipment on proper mounting and supports, connects refrigerant lines with nitrogen-purged brazing, wires all components to code, installs the thermostat, modifies ductwork as needed, and cleans up completely.
We start the new system, verify operation in all modes, measure airflow, check refrigerant charge, program the thermostat, register the warranty, and provide you with all documentation including equipment manuals, warranty cards, and commissioning readings.
Common questions about hvac installation costs, timelines, and what to expect.
Complete HVAC installation in Duncan ranges from $7,000 to $15,000 for a mid-efficiency furnace and AC combination — typically an 80 percent AFUE furnace paired with a 14.3 to 16 SEER2 condenser. High-efficiency systems with variable-speed blowers and two-stage or variable-speed compressors run $12,000 to $22,000 but deliver significantly lower operating costs and qualify for federal tax credits. Heat pump systems fall between $5,000 and $18,000 depending on whether the system is single-stage, variable-speed, or a dual-fuel configuration. Ductwork modifications or new duct runs add $1,000 to $5,000. KIC Refrigeration provides detailed written proposals for Duncan homeowners with every cost itemized and no hidden fees.
A standard furnace and AC replacement in Duncan takes 1 to 2 days when existing ductwork, gas piping, and electrical service are adequate and the new equipment fits in the same location. A complete system replacement that includes ductwork modifications, new trunk lines, equipment relocation from basement to attic or vice versa, electrical panel upgrades, or zoning system installation may take 3 to 5 days. Multi-zone mini-split installations with 3 to 5 indoor heads typically take 2 to 3 days. KIC Refrigeration provides a clear timeline in every proposal, coordinates scheduling around your Duncan home availability, and keeps you informed on progress every step of the way.
Yes, substantially. Replacing a 10 SEER air conditioner with a 16 SEER2 unit reduces cooling energy consumption by approximately 38 percent. Upgrading from an 80 AFUE furnace to a 96 AFUE condensing furnace saves 16 cents of every heating dollar — the old furnace sends 20 cents up the flue while the new one captures it. Combined with proper installation practices — correct refrigerant charge verified by superheat and subcooling, proper static pressure and airflow at 400 CFM per ton, sealed duct connections, and a programmable thermostat — a new system typically saves Duncan homeowners $600 to $1,800 per year depending on home size, usage patterns, and local energy rates.
Correct HVAC system sizing is determined by a Manual J residential load calculation — the ACCA industry standard — that accounts for your home square footage, ceiling height, insulation R-values, window area and U-factor, air infiltration rate, duct losses, occupancy, and the local OK winter and summer design temperatures. As a rough reference, a well-insulated 2,000-square-foot home in Duncan typically needs a 2.5 to 3.5 ton system, while a poorly insulated home of the same size may need 4 tons. KIC Refrigeration never estimates by rule of thumb — we run a proper calculation for your specific Duncan home to avoid oversizing, which causes short cycling, high humidity, and premature compressor wear.
What our customers say about working with our HVAC team.
"Our dryer was taking forever to dry clothes. Turned out the vent was almost completely clogged. Quick cleaning and now it works like new again."
"KIC Refrigeration did a full HVAC inspection before we closed on our new house. Very detailed report and the inspector answered all my questions patiently."
"KIC Refrigeration is the only HVAC company I will use going forward. They have done our furnace maintenance for three years without a single issue."