Used & Surplus Transformer Buyers — Longmont, CO
Surplus transformer purchasing for Longmont and the wider Boulder County area. Padmount through station-class, priced from the nameplate, removed entirely at our cost.

| County | Boulder County |
|---|---|
| Market | Mid-Size City |
| Ratings | 15 kVA – 100 MVA |
| Freight & rigging | Our cost |
| Payment | Upfront, before loading |
| Testing | Not required |
Selling a Transformer in Longmont
We buy surplus, used and failed electrical transformers in Longmont, CO and throughout Boulder County. Padmount, oil-filled, dry-type, pole-mount and substation-class units from 15 kVA to 100 MVA, in any condition — working, de-energized, surplus or internally failed. Send a photograph of the nameplate and we will price the unit the same day. Every purchase includes the freight and the rigging at our cost.
Transformer supply across Colorado
Utility territory in and around Longmont is served by Xcel Energy, Colorado Springs Utilities, Tri-State Generation, Black Hills Energy, and the equipment those systems retire tends to be standard voltage-class distribution gear with good documentation. Beyond the utilities, Colorado generates transformer turnover through oil and gas in the Denver-Julesburg basin, aerospace and federal laboratories along the Front Range, and brewing and food production in northern Colorado. For freight we run I-25 and I-70 intersect at Denver, our consolidation point for the whole Mountain West. One more thing worth knowing: Front Range coal plant retirements and wind interconnection work are moving station-class transformers off retired sites on a defined schedule.
Why a mid-size city like Longmont is easy for us
Mid-size markets are frequently where the best-value equipment sits, because there is less local competition bidding on it. A well-maintained padmount or a copper-wound dry-type out of a Longmont plant or school district often carries strong resale value and simply has not had a buyer with a truck show up. We are that buyer, and we consolidate Longmont pickups with other Colorado freight so the haul cost never lands on your side of the ledger.
Single units and small lots
You do not need a yard full of equipment to get our attention here. One 750 kVA padmount, three pole-mount cans on pallets, a pair of dry-types out of a mechanical room — we will quote it and we will schedule it. If a single small unit does not justify a dedicated truck immediately, we will tell you honestly and either hold it for the next Colorado run or price it to move now.
Removal and Value
What our crew brings to Longmont
A removal in Longmont is scoped from your photographs before anyone mobilizes, so the crew arrives with the right equipment rather than improvising. Depending on the unit that means a boom truck or rough-terrain forklift for a padmount, machine skates and stair gear for an indoor dry-type, or a hydraulic crane and multi-axle lowboy for station-class equipment. We bring rigging hardware, spill containment sized to the unit's oil volume, and our own insurance certificates naming your entity. You provide site access and a de-energized, disconnected unit; we do the rest.
What sets your number in Longmont
Five things, in roughly this order: kVA rating, voltage class, winding material, fluid and condition. A 1000 kVA 12470–480V dead-front padmount with a legible nameplate and a sound tank is a resale asset and gets priced as one. The same rating with a cracked bushing and a weeping base weld is priced closer to materials. Copper windings beat aluminum materially. Non-PCB oil beats PCB-suspect oil, because the disposal cost is real. Documented test results — oil analysis, turns ratio, power factor — raise the number because they let a downstream buyer put the unit back in service instead of rebuilding it. None of that testing is required to sell to us, though — it is upside, never a precondition.
Equipment We Buy in Longmont
Unit Substations
Complete primary-transformer-secondary lineups: incoming section, transformer, and low-voltage switchgear or switchboard bolted as one assembly. We buy them whole and we buy them by the section.
300 kVA – 5000 kVA60–90 cast-coil units per yearCast-Coil Transformers
Epoxy-encapsulated cast-coil units built for harsh, humid and high-load environments. Because they were expensive new and are durable used, they hold value better than any other dry-type.
300 kVA – 10 MVALots of 2 to 30 vault unitsNetwork & Vault Transformers
Submersible and vault-type network transformers with network protectors, pulled from underground vaults in dense urban grids. Awkward to remove, which is exactly why we get called.
300 kVA – 3000 kVALongmont Questions
What do you need from me to make an offer?
Do you buy transformers that no longer work?
Will you take a single transformer, or do I need a lot?
What about PCB oil and environmental documentation?
Are you a broker?
Nearby Coverage
We cover the communities around Longmont on the same terms, and we frequently combine pickups across this area into a single route.
Send the nameplate and the location in Longmont. Firm number, usually the same business day — and the removal is included.
Transformer to move in Longmont?
Payment upfront before loading, no testing required, freight and rigging covered.