A used seamless gutter machine is the cheapest piece of on-site fabrication equipment a roofing or gutter contractor can buy, and the one most likely to be sold with worn rollers and a bent shear. This guide covers the three decisions that matter: which size to buy (5-inch, 6-inch, 5/6 combo, or a 7-inch and larger box or commercial machine), which brand (KWM IronMan, New Tech Machinery Mach II or Englert MetalMan), and what to check before money changes hands. Prices are from manufacturer pages, dealer listings and used listings we verified in 2025 and 2026.
Which size
5-inch K-style
Five-inch K-style is the residential standard across most of the country and runs from 11-3/4 inch coil. A dedicated 5-inch machine is the lightest and cheapest: KWM’s IronMan 5 weighs about 1,100 lb and NTM’s Mach II 5 about 1,000 lb, both with a 3/4 HP 110 V motor. If 90 percent of your jobs are houses and you already have a 6-inch supplier for the rest, a 5-inch machine is all you need.
6-inch K-style
Six-inch K-style runs from 15-inch coil and carries roughly 40 percent more water, so it goes on larger roofs, steep roofs, metal roofs and light commercial work. Dedicated 6-inch machines weigh about 1,250 lb. Buy one as a second machine, or as a first machine in markets where 6-inch is the norm.
5/6 combo
A combo machine runs both profiles from one frame by shifting the forming stations and takes both coil widths. It weighs about 1,300 to 1,350 lb, costs a few thousand more than a single-size machine new, and saves the space and price of a second machine. NTM says its combo is about $3,000 more than its 5-inch model while two separate machines would be close to $20,000. Combos are the most common used machine and the most sensible first purchase for a contractor who wants to bid both sizes. Check that both shears come with it; a combo needs one per profile.
7-inch, 8-inch and box gutter
Commercial work uses 7-inch and 8-inch K-style or box gutter in heavier material. KWM builds a 7-inch IronMan with a 1.5 HP motor and a 6/7 combo, NTM builds a Mach II 7/8 combo with a 1.5 HP motor and the BG7 7-inch commercial box gutter machine with a hydraulic drive and shear, and Englert builds the MetalMan 770 box gutter machine with a 1.5 HP motor. These are a different budget: the NTM BG7 lists at $71,600 for the base machine plus $8,000 for the hook assembly, and its trailer is another $19,000, while the K-style 7 and 8 inch machines are quoted on request. Buy one only if you have the commercial work to feed it.
Which brand
KWM Gutterman IronMan
KWM Gutterman was founded in 1983 by Karl W. Minor, Sr., a gutter contractor who started building his own machines in the late 1970s, and builds everything in Rockdale, Illinois. The IronMan line covers 5, 6, 7 and 8 inch K-style, 5/6 and 6/7 combos, a box profile, half round, fascia and a lighter IronMan Jr. Published specs for the 5-inch are a 3/4 HP, 110 V, 13.6 amp motor, about 35 feet per minute, 98-1/2 inches long and about 1,100 lb; the 5/6 combo is about 122 inches and 1,300 lb. KWM’s warranty is 36 months on mechanical parts and 12 months on electrical components for the original buyer, and its manual calls for a 5,000 watt generator minimum. Dealer list prices in 2026 were about $7,872 for the 5-inch, $9,523 for the 6-inch and $11,553 for the 5/6 combo, with packaged bundles from other dealers running $9,091 to $26,745 depending on spools, stands and accessories. Note that the listings on this site that say Ironman are KWM IronMan machines; it is a model line, not a separate maker.
New Tech Machinery Mach II
NTM introduced the Mach II in 1994, three years after its first roof panel machine, and builds it in Denver. The 5, 6 and 5/6 combo share a 3/4 HP, 110 V, 11 amp motor and run about 50 feet per minute on 30 to 24 gauge steel, .019 to .032 aluminum and 16 to 20 oz copper, with a 1,000 lb reel and 400 lb cradle limit. Weights are 1,000 lb for the 5-inch, 1,250 lb for the 6-inch and 1,350 lb for the combo. NTM’s published 2025 pricing, still current in its May 2026 cost article, runs $8,900 for a bare 5-inch, $10,500 for a 6-inch and $12,300 for a combo, rising to $11,000 to $11,400 for the 5-inch, $12,700 to $13,000 for the 6-inch and $16,000 to $16,300 for the combo with shears, reels and cradles. A dealer listed the combo with shear at $15,195. NTM’s warranty is three years parts and labor.
Englert MetalMan
Englert of Perth Amboy, New Jersey, has built gutter machines since Herb Englert put painted coil and a portable machine together in 1966. The current line includes the Series 650 5/6 combo (about 1,000 lb, 1 HP 110 V motor, about 45 feet per minute, 119-1/4 inches long), the 660 6-inch, the 555 5-inch, the 770 7-inch box, the 56X that looks like 5-inch and carries like 6-inch, and the RainPro and LeafGuard profiles. Englert quotes machines individually rather than publishing prices, and its data sheets list a one-year parts warranty while its web page says five years, so ask which applies to a used unit; neither is likely to transfer. Englert runs a mobile service fleet, which is worth asking a seller about: a machine with a factory service history is a better bet.
What used gutter machines actually cost
| Machine | New price (2025 to 2026) | Used prices we found |
|---|---|---|
| KWM IronMan 5-inch | $7,872 dealer list; $9,091 to $12,834 in packages | No priced used listings found |
| KWM IronMan 6-inch | $9,523 dealer list; $12,989 at another dealer | No priced used listings found |
| KWM IronMan 5/6 combo | $11,553 dealer list; $12,439 to $15,279 in packages | $7,500 like-new combo (Wyoming, 2025); $10,500 two-year-old IronMan Jr. combo with spools and stands (2026); $17,000 complete rig with trailer, brake and coil (2026) |
| NTM Mach II 5-inch | $8,900 bare to $11,400 with reels and shear | No priced used listings found |
| NTM Mach II 5/6 combo | $12,300 bare to $16,300 with reels, cradles and two shears | No priced used listings found |
| Englert 650 combo | Quote only | No priced used listings found |
| 7-inch box (NTM BG7) | $71,600 base plus $8,000 hook assembly | No priced used listings found |
The pattern in that table is the whole used-market story: a clean 5/6 combo that cost $11,500 to $16,000 new has sold used for $7,500 to $10,500 when the machine alone was offered, and for more when a trailer, coil and tools were bundled. Dedicated 5-inch and 6-inch machines sell for less than combos, and most of the generic cost guides on the internet that quote $30,000 or $60,000 for a K-style machine are not describing anything sold in the United States. If a seller asks more than a new machine with the same accessories, the listing should explain why.
What to check before you buy
Gutter machines are simple, which is why they are often neglected. Spend thirty minutes on these items and run coil through it.
- Forming rollers. Look for worn or pitted chrome, rust, and bearing play. Chrome-plated steel rollers can be replated; stainless rollers do not need it but still wear at the bead.
- Drive rollers and chain. Polyurethane drive rollers should be free of cuts and flat spots. Check chain tension and sprocket teeth, and that the machine pulls coil without slipping in the cold.
- Shear. Every profile needs its own shear. Cycle it on coil; the cut should be square with no burr, no crushed bead and no tearing at the back. Bent shear handles and chipped blades are the most common damage.
- Run a test gutter. Twenty feet in each profile, laid on a flat surface: look for twist, bow, a back that is not square, scratches on the face and a lip that will not hold a hanger.
- Motor and electrical. Check the nameplate, cord and plug, the switch and any length counter. Note the amps so you can match a generator; KWM calls for 5,000 watts minimum.
- Entry guides and adjustments. The coil guides and the combo shift mechanism should move freely and lock. Seized adjusters are a sign the machine has been stored wet.
- What is included. Spools or reels, reel stands, run-out stands, coil cradles, extra shears, a cart. New reels list at $700 to $725 and run-out stands at $295 each, so missing accessories add up.
- Age and history. Ask for the serial number and the original invoice, and whether a factory or dealer technician has serviced it. Gutter machines are often sold when a business closes, so ask why it is for sale.
Moving it home
At 1,000 to 1,400 lb a gutter machine rides in an enclosed trailer or a box truck, which is also where it will live on the job. For freight, crate it on a pallet and ship LTL; strap through the frame, never over the rollers or the shear, remove any coil and reels, and protect the reel posts and shear handles. A machine that arrives with a bent entry guide will run gutter with a scratch down the face until you straighten it.
Frequently asked questions
Is a used gutter machine worth it compared to buying pre-made gutter?
If you install more than a few hundred feet a month, yes. A used combo at $7,500 to $10,500 pays back quickly against the per-foot markup on pre-made sections, and seamless runs are what customers expect. Below that volume, buy from a supply house.
Can I run 6-inch gutter on a 5-inch machine with different coil?
No. The forming stations are set for one profile. Only a combo machine runs both, and it needs both shears and both coil widths.
What generator do I need?
Manufacturers call for about 5,000 watts for the 3/4 to 1 HP 110 V motors on these machines, with a heavy extension cord to avoid voltage drop. A 7-inch machine with a 1.5 HP motor draws about 18 amps and needs more.
Do the manufacturers still support older machines?
KWM, NTM and Englert all sell parts and service for their current and recent lines, and Englert and NTM run field service. Ask with the serial number before you buy anything more than fifteen years old.
Browse all used gutter machines on the site, or go to the New Tech Machinery and Englert brand pages. Gutter crews that also run downspout should look at downspout machines and elbow machines.
