Stop Guessing During Shutdowns: Use This Welding Vetting Checklist
When a refinery unit or process line goes down, the clock is loud. Every hour offline pushes production back and adds pressure on everyone in maintenance and operations. In that moment, it is tempting to call the first welding truck that can get through the gate and hope for the best.
That shortcut can hurt later. If the contractor shows up without the right WPS, PQR, welder quals, or QA plan, you may finish the weld tonight but pay for it in rework, NCRs, and awkward audit questions later on. The shutdown feels “done,” but the paper trail tells a different story.
This checklist is meant to slow that panic just enough to ask the right questions. It gives plant engineers, maintenance managers, and turnaround planners a clear script to vet any emergency welder in Houston or across Texas before that truck rolls onto your site.
Verify WPS, PQR, and Welder Qualifications Before Arrival
The first step is to make sure the contractor can legally and safely make the welds you need, under the codes you work with.
Ask direct questions about WPS and PQR coverage:
- Which codes do your WPS and PQRs cover for this type of work, such as ASME Section IX, API 650, 653, 570, or B31.1/B31.3?
- Do you have procedures for the materials we use here, like carbon steel, stainless, or alloy pipe and plate?
- Are thickness ranges, joint types, and positions covered for what we need in this outage?
- Do you have prequalified procedures ready for common shutdown tasks, like tie-ins, crack repairs, or temporary supports?
Then drill into individual welder qualifications. Ask for:
- Current welder continuity logs and performance qualification records
- Proof of qualifications for the exact processes you plan to use, like SMAW, GTAW, GMAW, or FCAW
- Clarity on which positions they are qualified for, such as 6G, overhead, or vertical
- How they keep continuity current, and how fast they can send electronic copies to your QA team
You also want to know they are not learning your specs on the fly. Ask things like:
- What recent shutdown or turnaround projects have you done in similar facilities, such as refineries, midstream, chemical, or power plants?
- Which codes and owner specs governed those welds?
- Are you familiar with our internal hold points, owner approval steps, and any weld mapping requirements?
If they struggle with these questions, they will likely struggle under outage pressure too.
Mobilization, Site Readiness, and Safety Expectations
Speed matters, but it must be real speed, not wishful thinking. Ask for a clear mobilization plan, not just “we can be there soon.”
Good questions include:
- What is your true wheels-up time from your yard to this plant, given typical traffic on this side of town?
- Once on site, how long until your crew is on-tools and welding, if access and permits are ready?
- Can you support 24/7 work and scale from one rig to multiple crews if the outage grows?
Next, confirm they are self-sufficient and ready for your site rules.
Ask about equipment, materials, and access:
- Do your mobile rigs carry enough consumables, leads, and cutting tools for several shifts without resupply, especially during busy turnaround season?
- Do your crews already have badging for major Texas facilities, or are they experienced with site orientations and security checks?
- Can you support confined space, elevated work, or hot work areas common in our units?
Safety has to stay sharp, even when everyone is tired and rushing. Request:
- Current EMR, TRIR, and any written safety program summary
- How they perform JSAs before each task during fast-paced emergency work
- How they handle LOTO coordination and communication with operators
- Whether they assign a clear safety lead who works with your safety department
If they treat safety as paperwork only, that pressure will show up in your incident logs later.
Coordinate NDE, Traceability, and QA in Real Time
During an emergency shutdown, weld quality and inspection planning must move at the same speed as the repair. That starts with NDE.
Align welding and NDE early by asking:
- How will you plan weld hold points, preheat and interpass control, and access so we can safely perform RT, UT, MT, PT, or PMI?
- Do you have working relationships with local third-party NDE providers in our area to avoid long waits?
- Can your crew coordinate timing with our QC inspector so we do not lose hours between passes?
Material traceability is another common audit pain point. Set your expectations clearly:
- What is your plan for tracking heat numbers and collecting MTRs for all pressure-part and critical structural members?
- How will you mark components and welds so they tie back to drawings and isometrics?
- Can you track filler metal batches and maintain low-hydrogen storage, such as rod ovens and sealed containers, where our codes and specs call for it?
Then identify one person who owns QA on their side. Ask:
- Who will be your QA point of contact during this work?
- Who is responsible for weld mapping, repair records, NDE disposition, and coordination with our QC team?
- How do you document and log any deviations, concessions, or engineering approvals during night shifts?
When that role is clear, there is a much better chance nothing gets lost between shifts.
Demand Audit-Ready Documentation and Clear Closeout
A shutdown weld is not really “complete” until the paperwork can stand up to questions from internal QA, owner reps, or a regulator.
Set documentation deliverables upfront:
- Copies of all WPS and supporting PQRs used
- Welder qualification records and continuity logs
- Weld logs or maps showing weld numbers, locations, and NDE results
- All NDE reports and any repair or re-test records
- MTRs and traceability logs for materials and filler metals, where required
- JSA records and any incident or near-miss reports related to the job
- Nonconformance reports with final dispositions, if there were issues
Clarify how you want that package delivered. Explain your needs on:
- File formats, such as searchable PDFs or spreadsheets
- File naming rules tied to tag, line, system, or weld numbers
- How files should be grouped so your inspection and reliability teams can easily find circuits later
Then look ahead to audits. Ask:
- How do you make sure your closeout packages stand up to QA reviews and possible regulatory questions after an event?
- How long do you keep backup copies of the full package, in case we need it years later when an RBI review flags this system?
A contractor that builds documentation into their normal workflow will not treat it as an afterthought when everyone is ready to go home.
How to Prequalify an Emergency Welder in Houston Before Outages
The best time to vet an emergency welding contractor is long before something leaks or cracks on a Friday night.
Use this checklist to build a short list:
- Identify welding contractors who can cover your codes, materials, and typical outage scopes
- Confirm they can mobilize quickly across Greater Houston and other Texas metros where you operate
- Ask for a look at their WPS library, welder quals, safety program, and sample closeout packages
- Do site visits or virtual reviews of their mobile rigs and fabrication setups
Then run a tabletop “what if” with your top picks. Walk through a mock emergency:
- A leak location, service, and code class
- Required NDE and hold points
- A tight repair window and limited access
- Your internal approval steps
Watch how they explain their plan, how they think about documentation, and how they work with your operations and safety teams.
From there, turn this checklist into a standard call script and pre-job form your maintenance and reliability groups can use any time they bring in an emergency welder. At Weldit, we use this same thinking in our own planning, helping clients across Texas treat shutdown welding as controlled work, not guesswork under pressure.
Get Fast, Reliable Welding Help When You Need It Most
When a break, crack, or failure puts your project or equipment on hold, our team at Weldit is ready to respond quickly and get you back on track. If you need an emergency welder in Houston, we can assess the situation, recommend the right fix, and complete the repair with precision. Reach out through our contact us page, and we will work with your schedule and location so you are not stuck waiting for critical welding support.
