CONTRACTOR DEDICATED SERVICE | 48-HOUR TURNAROUND — SEE TERMS | 24-HOUR RUSH AVAILABLE | 5-STAR RATED NATIONWIDE | 2020 ECCCNYS COMPLIANT | 120+ YEARS COMBINED HVAC EXPERIENCE
HVAC Calculation Services for New York Contractors
Manual J • Manual D • Manual S • Manual Q • Manual N • COMCheck — You Focus on the Install. We Handle the Calculations. Nationwide Service.
Permit-ready residential and commercial HVAC calculations for New York contractors — built around the correct energy code for your jurisdiction, your climate zone, and your building type. Contractor-dedicated service, 48-hour turnaround, 24-hour rush available. Nationwide.
ACCA-APPROVED | 2020 ECCCNYS COMPLIANT | 48-HOUR TURNAROUND | CONTRACTOR-ORIENTED SERVICE | NATIONWIDE.
MANUAL J HEAT LOAD CALCULATION FOR NEW YORK HVAC CONTRACTOR
Click here to download sample Manual J load calculation prepared for a New York State heating-dominant climate zone project.
THE QUESTION IS NOT WHY, BUT WHY NOT?
You Focus on the Install. We Handle the Calculations. Your Clients Get a Permit-Ready Package. Nobody Had to Learn New Software.
Every report is permit-ready and delivered straight to your inbox, usually within 48 hours — anywhere in New York or nationwide.
New York is the only state in the country where HVAC contractors may be simultaneously accountable to two distinct energy codes depending on where their project is located. Statewide projects fall under the 2020 Energy Conservation Construction Code of New York State (ECCCNYS), which is based on the 2018 IECC with significant New York-specific enhancements. Projects within the five boroughs of New York City also fall under the 2020 NYC Energy Conservation Code, which layers on additional requirements including Local Law 97 carbon emission targets that directly affect HVAC system selection and sizing.
Our team produces ACCA-approved Manual J load calculations, Manual D duct designs, Manual N commercial load calculations, and Manual Q commercial duct designs formatted to the correct code for your specific New York jurisdiction. Every report delivered permit-ready to your inbox within 48 hours, as part of our nationwide service covering all 50 states.
WHY NEW YORK HVAC CONTRACTORS OUTSOURCE THEIR CALCULATIONS!
SAVE MONEY.
Outsourcing your Manual J, Manual D, and Manual S to our team is like adding a dedicated HVAC engineering department to your business, without the $400,000 annual payroll. You get the expertise, the turnaround, and the permit-ready output at a fraction of what a single in-house hire would cost you.
WORK SMARTER.
You focus on the install. We handle the calculations. Your clients get a permit-ready package and nobody on your team had to learn new software, maintain a Wrightsoft license, or spend three hours on a load calculation that should take forty-five minutes. Manual J, Manual D, Manual N, and Manual Q — all handled by our nationwide team.
INCREASE EFFICIENCY.
Load calculations and duct designs are time-intensive and require ongoing software licensing and training. We use Wrightsoft, the ACCA-approved industry standard for both residential and commercial projects, serving contractors in New York and all 50 states.
GROW YOUR BUSINESS.
The contractors who scale fastest are the ones who stop doing everything themselves. When you treat our team as your dedicated calculations department, you free up capacity to take on more jobs, close more bids, and grow your New York client base, without adding a single person to your payroll. That is not an overhead cost. That is a growth strategy.
NEW YORK RUNS TWO ENERGY CODES. YOUR PROJECT DETERMINES WHICH ONE GOVERNS.
New York State is the only jurisdiction in the U.S. where contractors must navigate two parallel energy code systems depending on where their project sits. Understanding which code applies and what it requires is the foundation of every permit-ready HVAC calculation we produce.
The 2020 ECCCNYS (Statewide): The 2020 Energy Conservation Construction Code of New York State governs all residential and commercial construction outside New York City. It adopts the 2018 IECC as its base but applies significant New York-specific enhancements: higher insulation R-values than the IECC baseline, mandatory mechanical ventilation under ASHRAE 62.2 or HVI-certified systems, enhanced air sealing standards, and stricter duct insulation requirements. These enhancements are not optional and not covered by a standard IECC-based calculation produced without New York awareness.
The 2020 NYC Energy Conservation Code (NYC Only): Projects within the five boroughs of New York City fall under the NYC Department of Buildings jurisdiction and the 2020 NYC Energy Conservation Code, which adds Local Law 97 carbon intensity limits on top of the ECCCNYS baseline. For commercial projects in NYC, equipment selection and HVAC system design must account for carbon emission targets that ratchet down through 2050 — which means an oversized or fuel-type-inappropriate system can create future compliance exposure for your client. We flag NYC commercial projects and provide calculations that account for these requirements.
New York Spans Three IECC Climate Zones:
Zone 4A (Mixed-Humid): New York City, Long Island (Nassau and Suffolk counties), Lower Hudson Valley, Rockland, Orange, Putnam, Westchester, and parts of the southern tier. Both cooling and heating loads are significant. Humidity control in summer is a meaningful load component.
Zone 5A (Cool-Humid): Albany, Syracuse, Rochester, Binghamton, mid-Hudson Valley, and most of central New York. Heating loads dominate substantially over cooling. ECCCNYS R-value minimums in Zone 5A are among the highest in the IECC framework.
Zone 6A (Cold-Humid): Buffalo, Plattsburgh, Watertown, the Adirondacks, and northern border communities. This is one of the most heating-intensive climate zones in the contiguous U.S. Buffalo and Watertown sit in the lake-effect snow belt, where ASHRAE winter design temperatures can reach -5°F or colder. A Manual J that does not account for these extreme design conditions will produce a dangerously undersized heating system.
For commercial projects statewide, COMCheck energy compliance documentation is required alongside our Manual N commercial load calculations and Manual Q commercial duct designs. All delivered within 48 hours, as part of our nationwide service.
RESIDENTIAL HVAC CALCULATIONS FOR NEW YORK CONTRACTORS!
NEW YORK MANUAL D
AC DUCT DESIGN SERVICE
FROM $259
Complete trunk and branch duct layout, register sizing, and static pressure report — formatted to ECCCNYS duct insulation and sealing requirements for your New York climate zone.
NEW YORK MANUAL J
HEAT LOAD CALCULATION
FROM $109
Room-by-room or block-load heating and cooling load, ACCA 8th Edition compliant. Built around your exact New York climate zone, ASHRAE design temperatures, and applicable energy code edition.
NEW YORK MANUAL S
EQUIPMENT SIZING
FROM $109
Confirms selected equipment matches your Manual J results — required alongside Manual J in most New York permit packages, including NYC DOB submissions.
COMMERCIAL HVAC CALCULATIONS FOR NEW YORK CONTRACTORS!
NEW YORK MANUAL Q
COMMERCIAL DUCT DESIGN
FROM $299
Trunk and branch commercial duct layout, register sizing, and static pressure report for New York commercial buildings — NYC DOB and ECCCNYS compliant.
NEW YORK MANUAL N
COMMERCIAL HEAT LOAD CALC
FROM $299
Whole-building commercial heat load calculation for New York light commercial projects up to 15 tons — across all three New York climate zones.
NEW YORK COMCHECK
FROM $299
Residential and commercial energy code compliance documentation accepted by New York State and New York City building departments statewide.
MANUAL D DUCT DESIGN FOR NEW YORK HVAC CONTRACTOR
Click to download a Manual D duct layout produced for a multi-zone New York City retrofit project.
HERE IS HOW OUR NEW YORK HVAC CALCULATIONS SERVICE WORKS
You Focus on the Install. We Handle the Calculations.
From NYC to the Adirondacks to the Buffalo lake-effect belt, your permit-ready reports land in your inbox within 48 hours. No software to learn. No licenses to maintain. No calculations to run.
Just results.
HVAC Calculation Services Across New York State
Nationwide service — delivered to your inbox from New York City to Plattsburgh.
Our nationwide remote service means there are no geographic limitations. We support licensed HVAC contractors and general contractors anywhere in New York, including these markets:
- New York City
- Buffalo
- Rochester
- Yonkers
- Syracuse
- Albany
- New Rochelle
- Mount Vernon
- Schenectady
- Utica
No matter which New York building department is reviewing your permit — NYC DOB, Erie County, Monroe County, or any of the state’s 62 counties — we will make sure your Manual J, Manual D, and Manual S calculations — and your Manual N, Manual Q, and COMCheck for commercial projects — are formatted to meet their specific requirements. And if your work takes you out of state, our nationwide team covers all 50 states with the same 48-hour turnaround.
We Know New York's Building Departments
Permit-ready reports accepted by every jurisdiction — from NYC DOB to upstate county offices.
Our team has produced permit packages for building departments across New York State. Below are direct links to the most active permitting portals in the state. If your county is not listed, call us at 800-810-3280 and we will point you in the right direction.
What Contractors Are Saying
Fast, accurate, and they always hit the deadline.
Jenny K., HVAC Contractor
Professional, diligent, and efficient every time.
Bryan R., General Contractor
Courteous, professional, and rapid service.
Kenny W., Contractor
PERMIT READY HVAC CALCULATIONS FOR NEW YORK CONTRACTORS — NATIONWIDE SERVICE
Permit-ready documentation delivered to New York HVAC contractors across all three climate zones and nationwide.
NEW YORK CONTRACTOR FAQ
What is the difference between the ECCCNYS and the NYC Energy Conservation Code?
The 2020 Energy Conservation Construction Code of New York State (ECCCNYS) governs all residential and commercial construction outside New York City. It is based on the 2018 IECC with significant New York enhancements for insulation, air sealing, and mechanical ventilation. Projects within the five NYC boroughs fall under the 2020 NYC Energy Conservation Code, which adds Local Law 97 carbon emission targets on top of the ECCCNYS baseline. We determine which code governs your project before calculations begin and format every report accordingly.
What climate zone is New York City in? What about Buffalo and Albany?
New York City, Long Island, the Lower Hudson Valley, Westchester, Rockland, Orange, and Putnam counties fall in Zone 4A (Mixed-Humid). Albany, Syracuse, Rochester, Binghamton, and most of central New York are in Zone 5A (Cool-Humid). Buffalo, Plattsburgh, Watertown, and the Adirondacks are in Zone 6A (Cold-Humid), where ASHRAE winter design temperatures can reach -5°F or colder in the lake-effect snow belt.
What is the ASHRAE 62.2 requirement under ECCCNYS and how does it affect my project?
The 2020 ECCCNYS requires mandatory mechanical ventilation meeting ASHRAE 62.2 or HVI-certified system standards for residential construction. This is a New York-specific enhancement beyond the base IECC and affects both equipment selection and Manual S results. We account for this ventilation requirement in every New York residential calculation we produce.
Do you handle Manual J and Manual D submissions for NYC Department of Buildings?
How do you handle the extreme heating loads in Buffalo and the lake-effect snow belt?
Zone 6A locations like Buffalo and Watertown require ASHRAE design temperatures that can reach -5°F or colder. We build every Zone 6A Manual J around the correct local ASHRAE design data, not a state average. An undersized heating system in the lake-effect snow belt is a serious comfort failure that callbacks cannot fix after the fact.
What is your turnaround time for a New York project?
Standard turnaround is 48 hours from receipt of complete project information. A 24-hour rush option is available for time-sensitive permits. Call 800-810-3280 to confirm availability.
Do you handle commercial HVAC calculations in New York?
Yes. We provide Manual N commercial load calculations, Manual Q commercial duct design, and COMCheck energy compliance documentation for light commercial projects throughout New York State and New York City.
Do you serve contractors who work in both NYC and upstate New York?
Yes. Many New York contractors work across both jurisdictions, each with its own energy code. Our team is familiar with both the ECCCNYS and the NYC Energy Conservation Code, and we format every report to the correct jurisdiction for your specific project address.
Do you serve New York contractors who also work in other states?
Absolutely. New York is one market within our full nationwide service. We deliver permit-ready HVAC calculations to contractors in all 50 states with the same 48-hour standard turnaround. If your work takes you outside New York, we have you covered.
Is this service available to New York homeowners directly?
This service is built specifically for licensed HVAC contractors and general contractors. New York homeowners ordering without a contractor should visit ManualJCalculator.com.
