Custom Sheet Metal Work
Custom Sheet Metal Fabrication in New Bern, NC
GP Heating & Cooling is a family-owned and locally-owned company based in New Bern, NC. Many heating and cooling projects stall on one problem: a duct transition, plenum connection or fitting that standard parts cannot match. Our team measures the existing opening, confirms how the air needs to travel and fabricates a custom sheet metal piece to fit it. Backed by 22 years of experience, we build each part around the system it will serve, so the connection seals and delivers the airflow the equipment was designed for.
Our Fabrication Approach
Why New Bern Chooses Our Sheet Metal Company
Custom work only helps when the measurements and the layout are right. These six commitments shape every fabrication job we take on.
Family ownership behind every custom cut
Our company is family-owned, and the people who take your measurements are the same people who answer for the finished piece. A part that does not fit can leak air, strain a blower or leave a room short of airflow, so we treat every dimension as a commitment. You can read about our background on our About Us page.
Local ownership that stays in the community
We are locally owned and operated, and our fabrication work stays with the neighbors who will live with the results. A part we fabricate remains our responsibility long after installation, through every season the system runs.
Measure first, then cut
Every custom piece begins with field measurements of the existing duct, the equipment connection and the surrounding framing. We record those dimensions before any metal is shaped, so the part reflects the actual opening rather than a guess from a drawing.
Fit checked at both ends
A transition joins two different openings. We check the connection at the furnace, air handler or package unit, along with the duct on the other side, so the piece meets both without forcing or leaving gaps.
A written scope before fabrication
You receive a plain-language description of the part, its dimensions and the reason it is needed before we fabricate anything. You can review that scope and ask questions first, so the decision rests on clear information.
Experience across ducted systems
Our work reflects 22 years of experience, and we are an Armstrong ProTeam Dealer and a Ducane dealer. We see how ductwork connects to central air, heat pump, furnace and package systems, which helps us fabricate parts that match the equipment around them.
Share Your Ductwork Details
Tell Us About the Part Your System Needs
Describe the opening or connection that needs a custom piece, including the equipment it joins, its approximate size and any photos you have. Send those details through our contact page, and our team will follow up to arrange a visit. Our technicians come to your home or business to take exact measurements. If the problem turns out to be a leak rather than a missing part, you can compare our furnace repair service and package unit repair service before deciding.
Signs a Custom Part Is Needed
Ductwork Signs That Call for a Custom Piece
Not every airflow problem needs new metal. These six situations often point to a connection or section that a standard part cannot solve, so a closer measurement is worth scheduling.
A Transition That Does Not Line Up
When the duct opening and the equipment connection sit at different heights or angles, a standard transition often leaves a gap or forces the joint. That strain can crack seams, loosen fasteners and let conditioned air escape into the attic or crawl space. We measure both ends and fabricate the transition so the connection meets without force.
A Section Damaged Beyond Patching
A corroded, crushed or separated duct section may be too damaged to hold a seal. Patching can buy time, but repeated patches often leak at their edges. We measure the damaged run, check the surrounding sections and fabricate a replacement piece that matches the original path. Sealing the remaining joints is a separate step, covered by our duct sealing service, and we explain it before recommending work.
A Supply Branch That Starves One Room
When a single room stays cool or warm while the rest of the home responds, the branch serving it may be undersized, misrouted or joined with an improvised fitting. A custom branch or reducer can correct the path without changing the whole system. We record the existing dimensions and confirm the change before fabricating it.
An Opening Altered by a Remodel
Remodeling often changes the framing around a return or supply opening. The new opening rarely matches standard duct sizes, and makeshift fittings can restrict airflow. We take the dimensions of the finished framing and build a piece sized to it, so the connection fits the space as it now exists.
An Equipment Swap That Changes the Connection
A new furnace, package unit or heat pump may have a connection size or position that differs from the unit it replaces. Forcing the old duct to fit can waste capacity and strain the new equipment. A custom piece bridges the difference while keeping the airflow close to the original design.
A Return Path That Pulls Dust Into the Space
Return openings that are too small, poorly located or unsealed can draw dust and unconditioned air into the system. Those conditions can also cause filters to clog sooner than expected. We check return dimensions and fabricate a corrected piece where the opening needs it.
How a Custom Piece Comes Together
From First Measurement to Installed Fit
Each custom job follows the same sequence. The order matters because every later step depends on the measurements recorded earlier.
Step 1 of 5
Review the Opening and the Problem
We start by understanding what the new or corrected piece has to do before we measure anything.
- Ask which furnace, air handler, heat pump or package unit the piece connects to.
- Note what the existing duct or opening currently does, including any leaks, noise or uneven airflow.
- Share any earlier drawings, photos or installation notes you have on hand.
- Confirm which areas of the home or building the technician will need to access.
- Identify whether the job is a new connection, a repair or a correction after a remodel.
Step 2 of 5
Measure the Opening and Surrounding Framing
Measurements drive the fit, so we take them at each end of the connection and along the path between.
- Measure the duct or opening at both ends, including height, width and any offset.
- Record the angles, elevation changes and obstructions the piece must clear.
- Check the surrounding framing, joists and equipment clearances that limit the shape.
- Compare the connection points with the specifications for a planned heat pump installation when that work is under consideration.
- Note any section that was modified or rerouted without a written record.
Step 3 of 5
Design the Piece Around the Airflow
A custom part has to move air as well as fit. We design the path so it avoids sharp restrictions that rob capacity.
- Plan the transition so the air path narrows or turns gradually wherever the space allows.
- Confirm that the new dimensions preserve the airflow the connected equipment needs.
- Place each joint where it can be sealed and inspected after installation.
- Confirm access for future service at the connection.
- Review the planned layout with you before any metal is cut.
Step 4 of 5
Fabricate and Test-Fit the Section
Once the design is set, we fabricate the piece and check its fit before it goes into the building.
- Cut and form the sheet metal to the recorded dimensions.
- Assemble the piece and compare it with the measurements taken on site.
- Dry-fit the section to the opening when access allows.
- Correct any mismatch before the piece is installed.
- Seal the seams of the fabricated part before it leaves our work area.
Step 5 of 5
Install, Seal and Document the Result
The final step turns the fabricated part into a sealed, documented connection you can rely on.
- Install the piece and secure every connection to the adjacent ductwork.
- Seal each joint and confirm the connection is airtight at both ends.
- Check airflow at the affected registers or at the equipment connection.
- Record the dimensions, materials and location of the custom piece for future technicians.
- Explain how a planned inspection under our maintenance plan can include a check of the new connection.
Components We Fabricate
Custom Components for Precise Fits
Each component below solves a specific fit problem. Every card links to our request form, so you can describe the part your system needs.
Transition Pieces
Transition pieces join a duct to an equipment opening that does not match it in size, shape or height. We measure both ends and build the piece so the connection meets without strain.
Custom Duct Sections
Some runs cannot be completed with standard lengths or angles. A custom section follows the actual path of the duct and keeps airflow smooth through the bend.
Branch Fittings and Reducers
Branch fittings send air toward a room or zone, while reducers adjust the size of a line where capacity changes. Both need accurate dimensions to avoid restriction.
Plenum Connections
A plenum connection links the main air path to the equipment it serves. We fabricate the connection to the recorded dimensions so the joint seals and carries air evenly.
Return Air Openings
Return openings must be sized and placed to draw air without pulling in dust from the wrong areas. We build the opening to the framing that exists in your home.
Equipment Connection Adapters
When a new system differs from the one it replaces, an adapter bridges the difference at the connection point. The adapter is sized to the equipment specifications and the existing duct.
Repair Sections
A damaged section that cannot hold a seal may need a fabricated replacement rather than another patch. We match the replacement to the original path and seal it at each joint.
Remodel Openings
Renovations often leave openings that no standard fitting can serve. We take the dimensions of the finished space and fabricate a piece that matches it.
Common Fabrication Questions
Custom Sheet Metal Questions Answered
We fabricate parts that connect and correct ductwork, including transition pieces between a duct and an equipment opening, custom duct sections for runs that standard sizes cannot fit, branch fittings and reducers, and return air openings. We also make adapters for equipment connections when a new system differs from the one it replaces. Each part is built from the dimensions recorded on site, so the finished piece matches the opening it serves.
A standard fitting works when the duct size, height and angle match the opening without forcing. Signs that a custom piece may be needed include a gap that cannot be sealed, a joint that has to be bent to connect, a room that receives too little air or an opening that was altered during a remodel. We measure the connection and explain which option fits.
We measure the existing duct or opening at both ends of the connection, including height, width and any offset. We also record the angles, elevation changes and obstructions the piece must clear, along with the position of the equipment connection. Surrounding framing, joists and clearances are noted as well. These dimensions go into the written scope, so you can review the reasons behind the design before any metal is cut.
Sometimes. A leak at a connection that does not line up can often be corrected by fabricating a transition or section that meets both ends without strain. A leak caused by a worn or separated seam may only need sealing. We identify which problem you have after testing the connection, and we describe any sealing work separately from a fabricated piece so you can compare the options.
We approach each job based on its measured conditions, whether the ductwork was installed by our team or by another company. Before fabricating anything, we check the existing ductwork, equipment connections and framing, then explain what the piece will correct. If the surrounding system has problems outside the custom part, such as undersized runs or failing sections, we describe those separately so you can decide how to address them.
It can. When a new furnace uses a different connection size or position than the unit it replaces, a custom transition or adapter often bridges the difference. Our team identifies those components during the installation evaluation and explains how each one affects airflow. You will see the reasons for each custom piece in writing, and our furnace installation page covers the rest of the scope.
Our technicians serve Havelock, Morehead City, Trenton, Jacksonville and Kinston from our New Bern base, and each community is listed in the coverage section of this page. If your property sits outside those communities, contact our team and we will confirm whether a visit is possible. The measurement and fabrication process stays the same wherever the property is located.
We fabricate custom ductwork pieces for commercial installations, including connections that need a precise fit at a rooftop unit. Commercial projects often involve larger openings and existing duct layouts built for different equipment, so accurate measurements carry extra weight. For new rooftop equipment, our commercial HVAC page describes how existing ductwork is evaluated before any change is made.
Helpful preparation includes the make and approximate age of the equipment, the location of the duct or opening, and any photos that show the connection from several angles. Note which rooms seem to receive poor airflow and whether a recent remodel changed the framing. Clear access to the connection, along with any crawl space or attic area nearby, makes measurement more accurate.
Yes. Every fabricated part is sealed at its seams and checked for fit before installation, and each connection is tested once the piece is in place. We check airflow at the affected registers or equipment connection so the result is measured rather than assumed. The written record notes the dimensions, the sealing method and the location of the custom piece, which helps future technicians.
Communities We Serve
Custom Sheet Metal Service Across Our Five Communities
Our technicians serve these North Carolina communities from our New Bern base. For a wider view of our coverage, see our service area overview.
- New Bern, NC
- Morehead City, NC
- Jacksonville, NC
- Havelock, NC
- Trenton, NC
- Kinston, NC
Additional Communities Served
Don’t see your town listed? We regularly help customers in nearby communities throughout the region. Give us a call and we’ll let you know if we can reach you.
Related Comfort Services
Other Systems That Pair With Custom Ductwork
Custom ductwork supports several kinds of equipment and comfort work, so these related services are worth comparing.
Central air conditioning
Repair, maintenance and installation for central AC systems that depend on properly fitted ducts.
Learn More about Central air conditioningCommercial HVAC
Rooftop units, boilers, chillers and gas line services for businesses in our area.
Learn More about Commercial HVACIndoor air quality solutions
Filtration, UV lighting, humidity control and duct sealing for the home.
Learn More about Indoor air quality solutionsDucted heat pumps
Installation, repair and maintenance for systems that move air through the ductwork.
Learn More about Ducted heat pumpsMobile and modular home HVAC
Heating, cooling and heat pump service for manufactured and modular homes.
Learn More about Mobile and modular home HVACGeothermal repair and service
Repair and service for geothermal systems in homes.
Learn More about Geothermal repair and service
Talk with Our Team
Ready to Talk Through Your Duct Connection
A duct connection that does not fit can quietly cost comfort, efficiency and indoor air quality. Tell us which opening needs attention, which equipment it connects to and what you have noticed in the rooms it serves. Our team will measure the connection on site, explain what a custom piece would correct and separate required work from improvements that can wait. You will see the reasoning before you decide anything.
Service Finance is available for qualifying projects, so a larger ductwork correction can be planned around monthly payments instead of one large expense. The program is explained during the visit, and you can review the options at your own pace. A planned maintenance schedule can also include a check of your new connection, and we will explain how that fits your home.
Whether your home is in New Bern or one of the communities we serve nearby, you can review our full range of services to see how custom fabrication fits alongside heating, cooling and indoor air quality. Every project ends with a written record that explains what was measured, fabricated and installed.