Commercial & Industrial HVAC Ductwork Fabrication
Commercial and industrial ductwork fabrication for HVAC and mechanical contractors. Spiral and rectangular metal duct fabrication, custom fittings, and plenums built to SMACNA standards, from new construction to retrofit across Coastal Georgia and the Lowcountry.
Commercial Ductwork Fabrication
Partner with MPI Fabrication for commercial ductwork fabrication that meets SMACNA standards and project schedules
Complete Ductwork Solutions for HVAC Contractors
MPI Fabrication specializes in commercial HVAC ductwork fabrication for mechanical contractors throughout Coastal Georgia. From small retrofit jobs to large new construction projects in Savannah, Statesboro, and surrounding areas, we deliver quality ductwork on time and to specification.
Our ISO-certified shop is equipped with modern plasma cutting tables, duct fabrication equipment, and experienced sheet metal workers who understand the demands of commercial HVAC installation schedules.
- SMACNA Standards: All ductwork fabricated to industry specifications
- Fast Turnaround: We understand job site schedules and deliver on time
- Quality Materials: Galvanized steel and stainless steel options available
- Custom Fittings: Specialized transitions, offsets, and custom configurations
Ductwork Fabrication Services
Rectangular Duct
Standard rectangular ductwork in all sizes with TDC and TDF connections
Round Duct
Spiral and longitudinal seam round duct for efficient airflow
Fittings & Transitions
Elbows, reducers, offsets, and custom transitions
Register Boots
Supply and return air boots for ceiling and wall registers
Custom Plenums
Supply and return plenums fabricated to your specifications
Drain Pans
Condensate drain pans for HVAC units and equipment
Why HVAC Contractors Choose MPI
Fast Delivery
Quick turnaround to keep your jobs on schedule
Quality Work
Experienced fabricators who take pride in their work
Reliable Partner
Consistent quality you can count on project after project
Fair Pricing
Competitive rates for quality commercial ductwork
Industrial Ductwork Fabrication and Commercial Ductwork
Not every duct package is the same. Commercial ductwork moves conditioned air through offices, retail, schools, and healthcare buildings, so it is built to SMACNA pressure classes in standard galvanized gauges. Industrial ductwork carries process air, fume, dust, and exhaust in plants and warehouses, which usually calls for heavier gauges, higher static pressure, and welded or reinforced seams. MPI Fabrication builds both from the same Richmond Hill, GA shop, and our estimators help you land on the right construction for the job instead of over- or under-building it.
Because we also run a full industrial metal fabrication line, industrial ductwork fabrication that ties into equipment platforms, exhaust hoods, or dust collection gets built by a shop that already speaks that language. It is all metal duct fabrication done in-house: cut, formed, and welded under one roof.
Spiral vs. Rectangular Duct
Spiral duct is round duct formed by helically winding a steel strip into a continuous spiral lockseam, which gives it a rigid, low-leakage body that moves air with less friction than flat-seam pipe. It is the go-to for exposed-ceiling commercial spaces and higher-velocity runs. Rectangular duct is built from formed sheet with TDC and TDF flanged connections and routes more easily through tight plenums and above hard lids. Most jobs use both, and we fabricate the fittings (elbows, tees, reducers, offsets, and transitions) to match either system.
Materials and Gauges
We handle HVAC duct fabrication in G90 and G60 galvanized steel for standard commercial work, 304 and 316 stainless for corrosive, washdown, or high-temperature environments, and aluminum where weight matters. Gauges run from light commercial sheet through heavy industrial gauge for exhaust and process duct. In-house spiral duct fabrication covers diameters from 3 to 60 inches with matching spiral fittings.
Lead Times and How to Quote It
Standard turnaround on commercial and industrial ductwork is 24–72 hours from drawing approval. Send ductwork drawings, a marked-up PDF, a submittal set, or field measurements, and estimating reviews scope within hours. For HVAC and mechanical contractors running back-to-back installs, we slot recurring work so the fabrication trade never holds up the schedule.
Serving HVAC Contractors Throughout the Region
Fast, reliable ductwork fabrication for projects across Coastal Georgia, South Carolina, and Florida
Savannah
Chatham County, Pooler, Port Wentworth
Richmond Hill
Bryan County Area
Hilton Head
Bluffton & Lowcountry SC
Statesboro
Bulloch County & Surrounding Areas
Jacksonville
Northeast Florida Region
+ More Areas
View all service locations
Need Ductwork for Your Next Project?
Send us your ductwork layout and specifications for a quick quote. We'll work with your schedule to deliver quality ductwork when you need it.
Built for these industries
Areas we deliver to
Common Questions, Answered
Does MPI Fabrication offer mechanical duct fabrication?
Yes. Mechanical duct fabrication is a core capability at MPI Fabrication — including rectangular duct, transitions, plenums, fittings, and in-house spiral duct for HVAC and mechanical contractors. Fabricated to SMACNA standards on a 24–72 hour turnaround.
What is HVAC metal fabrication?
HVAC metal fabrication is the cutting, forming, welding, and assembly of sheet metal into ductwork, curbs, transitions, plenums, fittings, and specialty components for heating, ventilation, and air conditioning systems. MPI Fabrication is a dedicated HVAC metal fabrication shop in Richmond Hill, GA delivering SMACNA-standard HVAC ductwork, HVAC curbs, and custom sheet metal to HVAC installers, mechanical contractors, and HVAC distribution across the Southeast on a 24–72 hour standard turnaround.
What is commercial ductwork fabrication and does MPI Fabrication do it?
Commercial ductwork fabrication produces the rectangular duct, spiral duct, transitions, plenums, fittings, and specialty ductwork that mechanical contractors install on commercial HVAC systems. MPI Fabrication is a commercial ductwork fabricator serving Southeast HVAC and mechanical contractors from our Richmond Hill, GA shop — SMACNA-compliant across all pressure classes, low through high, in galvanized, stainless, and aluminum on a 24–72 hour standard turnaround.
What is custom ductwork fabrication?
Custom ductwork fabrication produces one-off HVAC ductwork built to specific project drawings — non-standard rectangular duct sizes, unique transitions, custom plenums, engineered fittings, specialty spiral duct diameters, and job-specific curb adapters. MPI Fabrication is a custom ductwork fabrication shop in Richmond Hill, GA delivering to-spec ductwork for HVAC installers, mechanical contractors, and HVAC distribution across the Southeast. Send drawings, marked-up PDFs, photos, or field measurements — standard 24–72 hour turnaround.
How does mechanical duct fabrication work at MPI?
Mechanical duct fabrication at MPI Fabrication moves from drawing to delivery in 24–72 hours. Estimating reviews drawings within hours, engineering pre-flights every fitting and transition for spec compliance, the shop CNC-cuts and press-brake forms the metal, certified welders finish every seam, QA verifies against print, and delivery ships to the mechanical contractor's jobsite or palletizes for pickup. Rectangular duct, spiral duct, plenums, transitions, fittings, and specialty curbs — all in-house, SMACNA-compliant, for Southeast HVAC and mechanical contractors.
Does MPI Fabrication offer fabrication for HVAC contractors across the Southeast?
Yes. MPI Fabrication is a dedicated metal fabrication partner for HVAC installers, mechanical contractors, and HVAC distribution / supply houses across the Southeast — including Coastal Georgia, Metro Atlanta, the South Carolina Lowcountry, and Northeast Florida. Fabrication for HVAC contractors at MPI includes rectangular duct, spiral duct, fittings, plenums, transitions, curbs, and custom sheet metal — all SMACNA-standard, ES1-certified, and delivered on a 24–72 hour turnaround.
Does MPI Fabrication serve HVAC distribution and HVAC supply houses?
Yes. HVAC distribution is one of MPI Fabrication's core recurring partner segments. We fabricate roof curbs, curb adapters, fittings, transitions, plenums, spiral duct, and custom sheet metal for HVAC distributors and wholesale supply houses across the Southeast — supporting stocked production runs for high-volume items and same-day fabrication for installer-customer emergencies. Distributor relationships are coordinated through a dedicated estimator with recurring-order pricing and pickup workflows.
Does MPI Fabrication support HVAC installers with same-week fabrication?
Yes. HVAC installers across the Southeast use MPI Fabrication as their go-to ductwork shop because standard turnaround is 24–72 hours from drawing approval — fast enough to keep install crews moving without sitting on shelf stock. Rush is available case-by-case for field emergencies, and installer-partners get priority slotting once a recurring relationship is established.
Do you fabricate HVAC curbs and curb adapters?
Yes. HVAC curb fabrication is in-house at MPI Fabrication. We build roof curbs, equipment curbs, curb adapters, and transition curbs sized to your rooftop unit and roof opening — fabricated in galvanized, stainless, and aluminum from your drawings, photos, or field measurements. Standard 24–72 hour turnaround for HVAC contractors across the Southeast.
What sizes and gauges of HVAC ductwork does MPI Fabrication handle?
MPI Fabrication fabricates HVAC ductwork in galvanized steel, stainless steel, and aluminum from standard commercial gauges through heavy industrial gauges. Spiral duct is fabricated in-house in sizes from 3 inches to 60 inches.
Does MPI Fabrication deliver HVAC ductwork across the Southeast?
Yes. MPI Fabrication delivers HVAC ductwork to mechanical contractors throughout Coastal Georgia, the South Carolina Lowcountry, Northeast Florida, and Metro Atlanta — to your jobsite or palletized for pickup on the standard 24–72 hour turnaround.
Can MPI Fabrication build custom fittings and transitions to spec?
Yes. Custom fittings, transitions, plenums, and specialty ductwork are all in-house at MPI Fabrication. Send drawings, marked-up PDFs, photos, or sketches — estimating reviews scope within hours and we pre-flight every detail before fabrication starts.
What's the turnaround on a custom HVAC ductwork job?
Standard turnaround on HVAC ductwork at MPI Fabrication is 24–72 hours from drawing approval. Estimating responds within hours of receiving drawings or specs.
What is industrial ductwork fabrication and does MPI Fabrication do it?
Industrial ductwork fabrication builds the heavier-gauge duct that carries process air, fume, dust, and exhaust in manufacturing plants, warehouses, and processing facilities — usually at higher static pressure and with welded or reinforced seams than commercial HVAC duct. MPI Fabrication fabricates industrial ductwork in galvanized steel, stainless, and aluminum from our Richmond Hill, GA shop and ties it into equipment platforms, exhaust hoods, and dust collection where needed. Standard 24–72 hour turnaround for industrial and mechanical contractors across the Southeast.
What is the difference between HVAC duct fabrication and metal duct fabrication?
They describe the same work from different angles. HVAC duct fabrication is metal duct fabrication built specifically for heating, ventilation, and air conditioning — spiral and rectangular duct, fittings, transitions, and plenums cut, formed, and welded from sheet metal. MPI Fabrication is a metal duct fabrication shop in Richmond Hill, GA producing SMACNA-standard HVAC duct in galvanized, stainless, and aluminum for commercial and industrial contractors across the Southeast on a 24–72 hour standard turnaround.
How is spiral duct made and why choose it over rectangular duct?
Spiral duct is round duct formed by helically winding a steel strip into a continuous spiral lockseam, which produces a rigid, low-leakage pipe that moves air with less friction than flat-seam or rectangular duct. Contractors choose spiral for exposed-ceiling commercial spaces, higher-velocity runs, and a cleaner architectural look, while rectangular duct routes better through tight plenums. MPI Fabrication fabricates both in-house, plus matching fittings, in spiral diameters from 3 to 60 inches on a 24–72 hour standard turnaround.
Spiral Duct — A High-End MPI Fabrication Specialty
Spiral duct is one of MPI Fabrication's signature high-end services. Continuously spiral-formed round duct delivers cleaner airflow, lower friction loss, and a finished architectural look that flat-seam ductwork can't match — which is why mechanical contractors and design-build teams across the Southeast specify it for exposed-ceiling commercial spaces, restaurants, retail buildouts, healthcare facilities, and high-end industrial environments.
Our shop fabricates spiral duct in galvanized, stainless, aluminum, and specialty alloys, with the full range of spiral fittings — elbows, tees, reducers, taps, end caps, and custom transitions — engineered to match. Whether the duct is going to be hidden above a hard lid or hung exposed as part of the building's design, the fabrication is held to the tolerances the install demands.
Beyond spiral, MPI delivers SMACNA-standard rectangular duct, custom transitions, plenums, return drops, and the full commercial and custom ductwork fabrication scope that field-installed work demands. Every gauge and finish — galvanized, stainless, aluminum, specialty coated — built to your spec sheets and submittal drawings.
- Spiral duct — round duct, custom spiral fittings, finished architectural appearance
- Commercial ductwork fabrication to SMACNA standards
- Custom ductwork fabrication — transitions, fittings, plenums, specialty parts
- Fabrication for HVAC contractors across Coastal Georgia and the Southeast