Whole-System Evaluation
We assess your furnace or air handler, outdoor unit, ductwork, thermostat, and ventilation together to determine whether full replacement offers better value than replacing individual components.
Cooling and HVAC
Full HVAC replacement in Roswell for homes and facilities. We replace furnaces, air handlers, AC and heat pumps as one matched system. Call today.
Sometimes the best solution is replacing the entire heating and cooling system at once rather than one component at a time. Roswell HVAC handles complete HVAC replacement in Roswell for homes, offices, and government facilities, covering furnaces, air handlers, air conditioners, heat pumps, thermostats, and supporting ductwork. Replacing everything together ensures matched components, consistent efficiency ratings, and one coordinated installation schedule. It is often the right move when both heating and cooling equipment are aging, when the system was poorly sized from the start, or when a renovation changes how spaces are used. Older homes near Historic Roswell sometimes benefit from rethinking the entire layout, including zoning or adding returns. We evaluate the whole system, explain your options, and plan the project so your home or building stays as comfortable as possible during the changeover.
We assess your furnace or air handler, outdoor unit, ductwork, thermostat, and ventilation together to determine whether full replacement offers better value than replacing individual components.
For gas-heated homes, we install a new furnace with a matched air conditioner and coil, ensuring compatible airflow and blower settings for efficient performance in every season.
All-electric homes can move to a modern heat pump and air handler, or a dual-fuel setup that combines a heat pump with a gas furnace for colder winter days.
When equipment changes, ductwork often needs adjustment. We resize trunks, add returns, seal leaks, and replace damaged sections so the new system can deliver proper airflow.
Multi-story homes and larger commercial buildings may benefit from zoning with motorized dampers and multiple thermostats, allowing separate temperature control for different floors, wings, or areas.
We replace rooftop units, split systems, and air handlers for offices and facilities, coordinating crane lifts, after-hours work, and phased changeovers to limit disruption to daily operations.
A full HVAC replacement is a major project, and careful planning makes the difference between a system that performs for years and one that disappoints from the start. We design the system as a whole, so heating, cooling, airflow, and controls all work together properly.
Roswell HVAC completes residential and commercial replacements throughout Roswell, Alpharetta, and Sandy Springs. We provide clear written proposals, handle permits and inspections, and keep you informed at every stage. Crews protect floors, clean up daily, and work efficiently to keep downtime short. Once installation is finished, we test every mode of operation, balance airflow, and explain how to use and maintain the new equipment. Our goal is a dependable system you understand, installed by a local team you can call.
Request a free estimate
A technician inspects all heating and cooling equipment, ductwork, electrical service, and controls, then calculates loads to determine the right equipment combination for your home or building.
We present a written proposal with equipment options, any duct or zoning changes, and a timeline, then schedule work to minimize time without heating or cooling.
Our crew removes old equipment, installs the new system, completes inspections, balances airflow at each register, and tests heating and cooling thoroughly before walking you through operation.
FAQ
Answers to the questions Roswell customers ask us most. Still unsure? Call (770) 661-0066.
Often, yes, especially if both systems are aging. Replacing them together ensures matched airflow and efficiency, combines labor into one project, and avoids pairing a new unit with an old one that may fail soon. If one component is relatively new and compatible, we can discuss replacing only the older equipment instead.
Cost depends on the type of system, equipment efficiency, home or building size, ductwork changes, zoning, electrical upgrades, and installation complexity. Commercial projects may also involve crane lifts or after-hours scheduling. We perform a full system review and provide an upfront written quote so you can compare options with confidence.
Many residential full-system replacements take one to three days, depending on whether ductwork or zoning is being modified. Commercial projects vary more widely based on equipment size and phasing. We provide a detailed schedule in your proposal and plan the work to minimize time without heating or cooling in your home or building.
Not always. If your existing ducts are properly sized, sealed, and in good condition, they can often be reused. However, leaking, crushed, or undersized ducts limit the performance of new equipment. We inspect and test the duct system during our evaluation and recommend repairs or modifications only when they are truly needed.
Watch for frequent repairs to both heating and cooling, rooms that never reach a comfortable temperature, rising utility bills, excessive humidity in summer, and equipment that still uses R-22 refrigerant. Renovations or additions that change how you use the home are also good reasons to reevaluate the entire system rather than individual parts.
Free, no-obligation quote
Tell us what's going on and we'll get back to you with clear options and an upfront price.