Sell THHN Wire in Houston

01Identify THHN/THWN-2 by Its Jacket Print

THHN/THWN-2 is common building wire on commercial jobs, typically pulled through conduit. Its construction uses PVC insulation with a nylon jacket over a copper or aluminum conductor. Read the actual markings rather than identifying it by color or appearance alone.

A typical print reads “SOUTHWIRE 500 KCMIL CU THHN OR THWN-2 600V.” That identifies the manufacturer, conductor size, copper conductor, listed wire types and voltage rating. “CU” means copper; aluminum material must be identified from its own markings. The manufacturer name helps identify the product but does not imply affiliation with Houston Wire Buyers.

THHN alone should not be treated as equivalent to a THWN-2 marking for wet-location use. UL 83 and NEC Article 310 are relevant references; a licensed electrician or engineer should determine installation suitability. Photograph a readable section of jacket print and the reel tag. Our wire tag and jacket print guide explains what information to capture.

02THHN Sizes and Reel Formats We Buy

We buy surplus THHN wire in copper and aluminum, subject to identification and condition. Common branch-circuit sizes include 14 AWG wire, 12 AWG wire and 10 AWG. Larger material can also have reuse value when the markings and available length are clear.

The sizes we buy for this type are:

• 14 AWG, 12 AWG, 10 AWG, 8 AWG, 6 AWG and 4 AWG.
• 3 AWG, 2 AWG, 1 AWG, 1/0 AWG, 2/0 AWG, 3/0 AWG and 4/0 AWG.
• 250 kcmil, 300 kcmil, 350 kcmil, 400 kcmil and 500 kcmil.
• 600 kcmil, 750 kcmil and 1000 kcmil.

THHN building wire is generally an individual insulated conductor, not a multiconductor cable assembly. Report each size, color and length separately. We review full reels, partial reels, coils, boxes and cut lengths. Colors include black, red, blue, white, green, brown, orange, yellow and gray; color does not establish the wire rating.

03What Determines a Reusable THHN Wire Offer

Reusable wire is usually worth more than its scrap, or melt, value. A clearly identified reel with intact insulation and useful footage can serve another project instead of being valued only for its conductor metal. That does not mean every leftover length qualifies for reuse.

As THHN wire buyers, we consider copper or aluminum market conditions, wire type and current demand, size, footage, packaging condition, manufacturer and date code. Quantity and pickup logistics also affect the offer. Keep reel tags attached and avoid combining unidentified cut lengths with marked material; clear inventory information helps us assess what you have.

Short, burned or heavily damaged wire may be better suited to scrap. Cut lengths are not automatically scrap, but their condition and usable length matter. We focus on reusable material and will tell you what we identify as reusable. There is no fixed rate that applies to every reel.

04Check Insulation, Ends and Reel Condition

Before requesting an offer, inspect the wire without stripping insulation or removing useful labels. Photos should show both the overall material and any defects. Tell us about outdoor storage, water exposure or handling damage rather than leaving those details out.

Use this condition checklist:

• Ends: Show whether ends are sealed or protected, and note exposed or contaminated conductor ends.
• Insulation and jacket: Photograph cuts, abrasions, cracking, burns or crushed areas.
• Reel condition: Show broken flanges, loose winding and damage that could affect handling.
• Identification: Capture jacket print, reel tags, manufacturer information and date codes.
• Footage: Distinguish labeled original footage from your estimate of the remaining length.

A partial reel needs its own assessment; the original tag does not establish how much wire remains. If you are uncertain about condition or footage, say so. We review the information first and verify the material on site before payment per the written offer.

05Who Has Surplus THHN Wire in Greater Houston?

Commercial job closeouts often leave full or partial reels after conduit runs are completed. Electrical contractors may have leftover branch-circuit wire, feeder conductors or colors that no longer match the next job. Builders, facility maintenance teams and industrial project crews may also have unused material from completed work or scope changes.

Electrical distributors and supply houses can have surplus inventory that needs review by size, manufacturer, date code and packaging condition. Keep original labels with stock whenever possible, and separate different wire types before sending an inventory.

Houston Wire Buyers serves Greater Houston only: Harris, Fort Bend, Montgomery, Brazoria, Galveston, Chambers and Waller counties. Include the actual storage location with your inquiry so we can evaluate pickup logistics. Our address is 6402 McGrew St, Houston, TX 77087, in southeast Houston’s Mayfair area near I-45 and I-610. Drop-off is by appointment only; call first.

06How to Sell THHN Wire in Houston

Start by texting 951-403-5738 or emailing industrial832@gmail.com. Send clear photos of the reel tags and jacket print, the available footage or weight, and the material’s location. For mixed inventory, identify each reel or coil separately so sizes, colors and quantities do not get confused.

Include overall photos showing packaging and access at the storage site. Note whether reels are full or partial and disclose known damage. You can also use our offer request page to begin the review.

Our process is straightforward:

1. We review your photos and material details.
2. We provide a written offer.
3. We schedule pickup at your site or an appointment for drop-off.
4. We verify the material on site.
5. Payment follows the written offer.

Do not bring wire to McGrew St without an appointment. If the remaining footage is only an estimate, identify it that way when requesting an offer.

07THHN/THWN-2 Compared With Related Wire Types

Keep different insulation types and cable constructions separated when preparing surplus for sale. Similar conductor sizes do not make different products interchangeable. The jacket markings, construction and intended application all matter when identifying material for review.

XHHW-2 wire uses cross-linked polyethylene insulation rather than THHN/THWN-2’s PVC insulation with a nylon jacket. It is a separate wire type, so report it separately even when conductor size and metal match your THHN inventory.

MC cable is a metal-clad cable assembly rather than a loose individual building-wire conductor. NM-B is a nonmetallic-sheathed cable intended for dry locations, while UF-B is a distinct cable type used for applications including underground installations. Neither should be labeled as THHN simply because the conductor sizes look familiar.

Send photos when identification is uncertain. For substitution, ampacity, raceway fill or installation decisions, consult a licensed electrician or engineer rather than relying on a surplus purchase assessment.