
Coral Springs · Manual J & D Design
Manual J Load Calculation & Manual D Duct Design in Coral Springs, FL
In-house Manual J load calculations and Manual D duct designs, so your system is right-sized and every room gets the air it needs. Serving Coral Springs, FL. 4.8★ on Google with 229+ reviews.
18+
Years in business
4.8★
229+ Google reviews
Licensed
FL #CAC1820211
A+
BBB Accredited
24 / 7
Emergency response
Why Swift AC
What you get with our manual j load calculation & manual d duct design.
Four things we don't compromise on, every job, every customer.

Why this matters
Built for the home you live in.
Your AC is not a piece of equipment. It is the difference between kids sleeping through hot August nights and a hallway fan war at 2 a.m.
We treat every install and repair the way we would want our own family taken care of. Properly sized systems. Honest diagnostics. Clean work that lasts. Because the people you love deserve a home that stays cool, dry, and comfortable, year after year, without you having to think about it.
Why Swift AC
The standard South Florida homeowners trust.
We earn our reputation one job at a time. Every system we install, every repair we make, every customer we serve carries our 100% satisfaction guarantee.
Offers for Coral Springs customers
Save on quality HVAC service.
Real, simple deals on the work you actually need. No mystery pricing, no bait and switch.
What customers say
4.8★ on Google with 229+ reviews.
We earn our reputation one job at a time. Here's what your neighbors are saying.
“When you are looking for a reliable, quick and honest HVAC team this is the company you want to deal with. Reach out, you will be wowed. Also, they are nice guys and will spend the time to explain your needs.”

David Ragheb
West Palm Beach
...and 226+ more on Google.
Book your manual j & d design in under 30 seconds.
A real Swift AC team member answers, every time. Same-day service across South Florida.
About Coral Springs
Manual J Load Calculation & Manual D Duct Design in Coral Springs, FL.
Because so much of Coral Springs was built in the same era, many homes have been through the same cycle: original system, replacement matched to the old size, then another replacement matched again. Meanwhile, the houses changed. Families added impact windows, new roofs, attic insulation, enclosed patios and converted garages. Swift runs Manual J load calculations in-house for the systems and duct projects we install in Coral Springs, so the next system is sized for the house as it is today, not for a decision made in 1985. The second floor is where this shows up most. Upstairs rooms carry more heat than their floor area suggests, and a whole-house number hides that. The room-by-room loads feed a Manual D duct design that gives each room the air it needs and keeps every bedroom within 3°F of the thermostat. Right-sizing also improves humidity control, which Coral Springs families notice as a house that feels drier at the same setting.

About this service
Manual J Load Calculation & Manual D Duct Design in Coral Springs
Most air conditioners in South Florida were sized with a rule of thumb, so many tons for so many square feet, or simply matched to the unit they replaced. That shortcut ignores what really drives the load in a Florida home: window area and direction, glass type, shading, insulation, ceiling heights, duct location, air leakage and the moisture the system has to remove. An oversized system cools fast, shuts off and leaves the house clammy. An undersized one runs nonstop. And without a duct design, even a perfectly sized system can't get the right amount of air to each room.
Swift Air Conditioning does this work in-house, using the ACCA standards. Manual J is the room-by-room heating and cooling load calculation. Manual S uses those loads to select equipment with the right capacity and enough moisture removal for our climate. Manual D designs the duct system, sizing each supply, trunk and return so the blower can deliver the airflow each room needs. Manual T guides the choice of registers and grilles so the air mixes well in every room.
The design target is the comfort guideline in ACCA's Manual RS: each room within 3°F of the thermostat while cooling. We build every replacement and duct project to the design, then measure airflow and temperatures after installation to confirm it performs.
Florida's energy code calls for heating and cooling equipment in new homes to be sized with Manual S from a Manual J load calculation, and the residential code points to Manual D for duct design. We bring the same discipline to replacements, additions and renovations, because it's what makes a home comfortable. Call (561) 685-8408 to schedule an in-home visit.
Ruud Pro Partner
Real Swift work in Coral Springs.
Watch what to expect when our team shows up. Honest installs, careful technicians, the same standard on every Coral Springs job.
Neighborhoods we serve
Local areas in Coral Springs.
Manual J load calculations and Manual D duct design for Coral Springs homes in Ramblewood, Wyndham, Eagle Trace, Heron Bay and around The Walk, along University Drive, Sample Road, Wiles Road, Coral Ridge Drive, Atlantic Boulevard and Riverside Drive, in both single-story and two-story homes.
Local details
Manual J Load Calculation & Manual D Duct Design details for Coral Springs.
For a Coral Springs Manual J, we measure each room on every floor, record window sizes, directions and glass types, check ceiling heights and attic insulation and note upgrades like impact windows or a new roof. Rooms over the garage and under the attic get special attention because they gain the most heat. Converted garages and enclosed patios are calculated separately. Those details become a heat and humidity figure for every room in the house. Manual S then selects equipment that fits those loads with strong moisture removal, and it shows whether one system can handle both floors or whether zoning or a separate upstairs system would serve the home better. Manual D sizes every supply, return and trunk, including a second-floor return when the house is missing one, and checks the duct system's resistance against the blower. Manual T guides register choices. We review the design with you, build to it and measure the finished Coral Springs system to confirm it works as designed.
Coverage map
Serving Coral Springs.
Same-day service across every neighborhood and ZIP code below. No travel surcharges.
Neighborhoods we serve
- Heron Bay
- Eagle Trace
- Wyndham
- The Walk
ZIP codes we cover
4 ZIP codes across Coral Springs.
Nearby cities
Manual J Load Calculation & Manual D Duct Design in nearby cities.
We service these neighboring cities with the same standard, same response time, and no travel surcharges.
Got questions?
Frequently asked questions
Not necessarily. Matching the original tonnage repeats whatever sizing decision was made when the home was built and ignores upgrades since then. A Manual J for your Coral Springs home calculates the actual load, which may call for a different size and will guide the duct design.
We calculate the load for every room, which shows the load on each floor. From there, Manual S and Manual D determine whether one system with properly sized ducts can serve both floors of your Coral Springs home or whether zoning or a second system is the better choice.
Yes. A converted garage adds conditioned space, and it often has less insulation and a large wall where the door used to be. We calculate it as its own room in the Manual J and give it a properly sized supply and return in the Manual D design, rather than tapping it onto an existing duct.
Manual J is the ACCA standard for calculating how much heating and cooling each room of a home needs. It accounts for walls, windows and their direction, glass type, shading, insulation, ceiling heights, duct location, air leakage and occupants, and it calculates the moisture load as well as the heat load.
Manual J calculates the loads. Manual S selects equipment that matches those loads, including enough moisture removal. Manual D designs the duct system that delivers the right airflow to each room, and Manual T guides register and grille selection. Used together, they produce a system that's sized right and delivers air evenly.
Related services
You might also need...
Air Conditioning Installation
Expert AC installation with top-rated equipment and warranty-backed workmanship.
Learn moreDuct Replacement
Whole-home duct replacement designed in-house with Manual J and Manual D, then sealed, insulated and balanced. Free in-home quote.
Learn moreAirflow Diagnostic & Duct Balancing Assessment
A measured airflow diagnostic for hot and cold rooms: static pressure, room-by-room airflow, duct leakage and thermal imaging, then balancing.
Learn more
Ready when you are
Comfort done right. Let's get started.
Free estimates on installs. Honest diagnostics on repairs. Same-day service across South Florida and a real human on the other end of the line, every time.
Service area
Palm Beach · Broward · Martin · St. Lucie
Licensed FL #CAC1820211


