Frequently Asked Questions About Industrial Electrical Maintenance
Services and coverage
What industrial electrical services do you offer?
Industrial electrical maintenance, medium- and high-voltage substations, electrical testing, transformer and dielectric oil maintenance, generators, motors and pumps, industrial rigging with cranes, and electrical studies and engineering.
Do you handle electrical emergencies after hours?
Yes. We offer 24/7 emergency service for failures that stop your plant's operation. Call +52 844 181 8830 and describe the affected equipment.
What areas do you serve?
We serve plants and facilities in Saltillo and other industrial areas of Coahuila. If your project is outside the region, contact us and we'll review the logistics.
What types of companies do you work with?
Manufacturing plants, industrial parks, commercial facilities, and infrastructure. We work with automotive, steel, and manufacturing companies that depend on reliable electrical continuity.
Maintenance, standards, and quotes
How often should a substation be serviced?
As a general guideline, at least once a year. The actual frequency depends on load, environment, and manufacturer recommendations; we can propose a preventive maintenance program for your facility.
What electrical tests do you perform?
Testing for substations, transformers (including dielectric oil), and industrial electrical systems. The test scope is defined by your equipment and goal: maintenance, diagnostics, or compliance.
Do you work in accordance with Mexican Official Standards (NOM)?
Yes. Our services are performed in accordance with the Mexican electrical standards (NOM) that apply to each installation. Ask us about the documentation you need for your audit.
How do I request a quote?
Fill out the quote form with your company, location, and the equipment involved, call +52 844 181 8830, or email info@electroservicioslozano.com. Hours: Monday to Friday 8:30 AM–7:00 PM and Saturday 8:30 AM–2:00 PM.
More frequently asked questions
These frequently asked questions come from plant managers, maintenance engineers, and buyers we work with in Saltillo and across Coahuila. Practical answers about scheduling, safety, reports, and emergencies:
How long does a typical maintenance visit take?
It depends on the equipment and the scope. An inspection of a small installation can take a few hours, while a full substation service may take one or more shifts. We confirm the estimated duration in the quote.
Do you work on weekends and holidays?
Yes. Many plants prefer electrical work during weekends, holidays, or planned shutdowns. We schedule crews in advance so the work fits your production calendar.
What safety measures do you follow?
Our crews follow lockout and tagout, switching procedures, personal protective equipment, and site permits on every job, in line with NOM-029-STPS-2011 and your plant rules.
Do you provide reports after each job?
Yes. Every job includes a written report with the work performed, findings, measurements when applicable, and recommendations you can use for audits and planning.
Can you work on equipment from any brand?
Yes. We service transformers, switchgear, breakers, generators, and motors from the main manufacturers used in industrial plants.
Do you offer yearly maintenance programs?
Yes. We can set up a preventive program with scheduled visits and testing for your critical equipment, so budgets and shutdowns are planned in advance.
Can you move and install heavy electrical equipment?
Yes. Our industrial rigging service uses a crane truck and a trained crew to move, set, and connect transformers, switchboards, and generators.
What should I do while I wait for an emergency crew?
Keep people away from the affected equipment, do not try to re-energize it, and, if it is safe, open the upstream breaker. Share photos and a description when you call so our crew arrives prepared.
Do you have a team based in Saltillo?
Yes. Our office and crews are based in Saltillo, Coahuila, which lets us respond quickly to plants in Saltillo, Ramos Arizpe, and nearby industrial parks.
Can you visit our plant in Saltillo before quoting?
Yes. For most projects we schedule a technical visit to your plant in Saltillo or the surrounding area to review the equipment and confirm the scope before we send the quote.
Do you serve companies outside Saltillo?
Yes. Besides Saltillo, we serve Ramos Arizpe and industrial parks across Coahuila. For projects in other regions, contact us and we will review the logistics with you.
When is the best time to schedule major maintenance?
Many plants in Saltillo schedule major electrical maintenance during planned shutdowns, such as year-end or summer breaks. Booking early helps secure crews, equipment, and materials for those dates.
Where can I find answers that are not in these frequently asked questions?
Call +52 844 181 8830 or email info@electroservicioslozano.com. Our team in Saltillo answers technical questions about your installation directly and can schedule a visit if needed.
Do you work with plants that have their own maintenance team?
Yes. We often work alongside in-house maintenance teams, taking on specialized tasks such as medium-voltage work, testing, or rigging, while your team keeps control of daily operations.
Can you help us prepare for a customer or insurance audit?
Yes. We can inspect and test your critical equipment, correct findings, and prepare the reports and records auditors usually request, so you arrive at the audit with clear evidence.
Still have questions?
If your question is not on this list, our team will answer it directly by phone, email, or during a site visit. Tell us about your equipment, your location, and what you need, and a specialist in Saltillo will contact you to review your needs and next steps.
- Phone
- +52 844 181 8830
- info@electroservicioslozano.com
- Hours
- Mon–Fri 8:30 AM–7:00 PM · Sat 8:30 AM–2:00 PM · 24/7 emergencies
Standards and references
Official documents mentioned in these answers, useful for your maintenance, safety, and purchasing teams in Saltillo:
Electrical installations
Mexico’s official standard for the safe design and use of electrical installations.
View the standardMaintenance safety
Safety conditions for maintenance work on electrical installations in workplaces.
View the standardUtility supply
Comisión Federal de Electricidad, the utility that supplies medium- and high-voltage service in Mexico.
Visit CFE