# Arizona Electrical Solutions, LLC

> Full-service, commercial design-build contractor based in Tucson, Arizona. We self-perform electrical, electrical engineering, HVAC/mechanical, underground utilities with heavy equipment, and general construction under a single design-build contract. Licensed (Arizona ROC KB-1, KA, CR-11, CR-39), bonded, and insured. We serve commercial, industrial, institutional, municipal/public, and mixed-use clients statewide.

## Key facts
- Legal name: Arizona Electrical Solutions, LLC
- Office: 333 N Wilmot Road, Suite 340, Tucson, AZ 85711
- Phone: (520) 308-6235
- Website: https://www.aztucsonelectricalsolutions.com
- Service area: State of Arizona
- Markets: commercial, industrial, institutional, municipal/public, mixed-use (no residential)
- Delivery models: design-build, general contracting, self-performed MEP + civil
- Licenses (Arizona Registrar of Contractors):
  - ROC 329360 — General Dual KB-1 Building Contractor
  - ROC 312437 — General Dual KA Engineering
  - ROC 276948 — Specialty Dual CR-11 Electrical
  - ROC 326401 — Specialty Dual CR-39 Air Conditioning & Refrigeration
- Status: Licensed, bonded, and insured; equal opportunity employer

## Services
- [Electrical](https://www.aztucsonelectricalsolutions.com/electrical.html): service & distribution, lighting, life-safety systems, special/low-voltage systems, and controls.
- [Electrical Engineering](https://www.aztucsonelectricalsolutions.com/engineering.html): in-house power system design, load calcs and one-lines, lighting/photometric design, arc-flash and coordination studies, special-systems and controls design, solar/EV, and permit-ready construction documents.
- [HVAC & Mechanical](https://www.aztucsonelectricalsolutions.com/hvac.html): commercial HVAC and refrigeration — equipment, ductwork, refrigerant piping, controls/BAS, ventilation, and start-up & commissioning — integrated with the electrical scope.
- [Underground & Heavy Equipment](https://www.aztucsonelectricalsolutions.com/underground.html): trenching, conduit duct banks, primary & secondary utility work, and site preparation with an owned Cat equipment fleet and certified operators.
- [Construction](https://www.aztucsonelectricalsolutions.com/construction.html): design-build delivery, general contracting, and MEP coordination.

## Electrical capabilities (detailed pages)
- [Service & Distribution](https://www.aztucsonelectricalsolutions.com/service-distribution.html): service entrance, switchgear, switchboards, panelboards, transformers, feeders, and standby/emergency power.
- [Lighting](https://www.aztucsonelectricalsolutions.com/lighting.html): interior, high-bay, exterior, parking and site lighting, LED retrofits, lighting controls, and emergency egress lighting.
- [Life-Safety Systems](https://www.aztucsonelectricalsolutions.com/life-safety.html): fire alarm, emergency and standby power, exit and egress lighting, mass notification, and AHJ inspection sign-off.
- [Special Systems](https://www.aztucsonelectricalsolutions.com/special-systems.html): structured cabling and data, access control, video surveillance (CCTV), AV and paging, and grounding for sensitive equipment.
- [Controls](https://www.aztucsonelectricalsolutions.com/controls.html): building and lighting controls, energy management and metering, motor controls and VFDs, and HVAC controls integration and commissioning.

## Underground & heavy equipment (detailed pages)
- [Trenching & Excavation](https://www.aztucsonelectricalsolutions.com/trenching-excavation.html): open-cut trenching, mass and structural excavation, potholing, and trench safety with an owned Cat fleet.
- [Duct Banks & Conduit](https://www.aztucsonelectricalsolutions.com/duct-banks.html): concrete-encased duct banks, multi-way conduit, manholes, vaults, and equipment pads.
- [Underground Utilities](https://www.aztucsonelectricalsolutions.com/underground-utilities.html): primary and secondary distribution, transformer/switchgear foundations, utility tie-ins, and wet-utility coordination.
- [Site Preparation & Grading](https://www.aztucsonelectricalsolutions.com/site-preparation.html): clearing, rough and fine grading, cut and fill, pads, and compaction.
- [Backfill & Restoration](https://www.aztucsonelectricalsolutions.com/backfill-restoration.html): engineered backfill, compaction, concrete/asphalt restoration, and right-of-way close-out.

## HVAC & mechanical (detailed pages)
- [Equipment & Systems](https://www.aztucsonelectricalsolutions.com/hvac-equipment.html): RTUs, split/VRF systems, chillers and boilers, make-up air, and refrigeration.
- [Ductwork & Air Distribution](https://www.aztucsonelectricalsolutions.com/ductwork.html): duct design/fabrication/installation, insulation, diffusers, dampers, and balancing.
- [Refrigerant & Piping](https://www.aztucsonelectricalsolutions.com/refrigerant-piping.html): line sets and brazing, evacuation and charging, leak testing, and EPA-compliant handling.
- [HVAC Controls & Automation](https://www.aztucsonelectricalsolutions.com/hvac-controls.html): DDC controls, BAS integration, and sequences of operation.
- [Ventilation & IAQ](https://www.aztucsonelectricalsolutions.com/ventilation-iaq.html): code ventilation, exhaust, make-up air and pressurization, filtration, and economizers.
- [Service, Start-Up & Commissioning](https://www.aztucsonelectricalsolutions.com/hvac-service.html): start-up, TAB, commissioning, retrofits, and preventive maintenance.

## Electrical engineering (detailed pages)
- [Power System Design](https://www.aztucsonelectricalsolutions.com/power-system-design.html): load calcs, one-lines, gear selection, transformer/standby design, and service entrance.
- [Lighting & Photometric Design](https://www.aztucsonelectricalsolutions.com/lighting-design.html): IES photometrics, fixture selection, energy-code compliance, controls, and emergency lighting.
- [Power Studies & Analysis](https://www.aztucsonelectricalsolutions.com/power-studies.html): short-circuit, coordination, arc-flash (NFPA 70E), power quality, and grounding.
- [Special Systems & Controls](https://www.aztucsonelectricalsolutions.com/special-systems-design.html): fire alarm, structured cabling, security/CCTV, and building/lighting controls design.
- [Energy, Solar & EV](https://www.aztucsonelectricalsolutions.com/energy-solar-ev.html): solar PV, battery storage, utility interconnection, EV charging, and efficiency retrofits.
- [Documentation & Permitting](https://www.aztucsonelectricalsolutions.com/construction-documents.html): permit-ready CDs, NEC/AHJ submittals, PE stamping, BIM/Revit, and as-builts.

## Markets served (detailed pages)
- [Commercial & Retail](https://www.aztucsonelectricalsolutions.com/commercial-retail.html): ground-up commercial buildings, tenant improvements, site and parking-lot power, and retail/restaurant/hospitality electrical systems.
- [Industrial & Warehouse](https://www.aztucsonelectricalsolutions.com/industrial-warehouse.html): heavy power distribution, service upgrades, equipment and machine power, motor controls/VFDs, high-bay lighting, and monitoring for manufacturing and distribution facilities.
- [Site & Civil Infrastructure](https://www.aztucsonelectricalsolutions.com/site-civil-infrastructure.html): underground utilities, duct banks, site preparation and grading, primary service and transformers, and site lighting, self-performed with an owned Cat fleet.
- [Municipal & Public](https://www.aztucsonelectricalsolutions.com/municipal-public.html): bonded public-works capability — water/wastewater and pump stations, streetlighting and traffic infrastructure, and public facilities.
- [Healthcare & Institutional](https://www.aztucsonelectricalsolutions.com/healthcare-institutional.html): essential electrical systems, standby power, life-safety and fire alarm, special systems, and phased work in occupied facilities.
- [Mixed-Use Development](https://www.aztucsonelectricalsolutions.com/mixed-use-development.html): single-source design-build combining electrical, underground utilities, HVAC, lighting, and construction.

## Company
- [Home](https://www.aztucsonelectricalsolutions.com/): overview of full-service design-build capability.
- [Credentials](https://www.aztucsonelectricalsolutions.com/credentials.html): the four Arizona ROC licenses, bonding, and insurance.
- [Careers](https://www.aztucsonelectricalsolutions.com/careers.html): electrical apprentice, journeyman electrician, foreman, superintendent, and HVAC positions, with requirements.
- [Become a Subcontractor](https://www.aztucsonelectricalsolutions.com/subcontractors.html): trade-partner qualification form, open to all trades.
- [Tools](https://www.aztucsonelectricalsolutions.com/tools.html): free, NEC-based electrical field calculators (no sign-up, nothing stored). Sub-pages:
  - [Voltage Drop Calculator](https://www.aztucsonelectricalsolutions.com/voltage-drop-calculator.html): copper/aluminum, 14 AWG to 1000 kcmil, single- or three-phase, with NEC 3% / 5% flags (circular-mil method).
  - [Conduit Fill Calculator](https://www.aztucsonelectricalsolutions.com/conduit-fill-calculator.html): THHN/THWN-2 in EMT, IMC, Rigid, or PVC vs. NEC Chapter 9 Table 1 (53/31/40%), plus the smallest conduit that fits.
  - [Wire Ampacity Calculator](https://www.aztucsonelectricalsolutions.com/wire-ampacity-calculator.html): NEC Table 310.16 ampacity for copper/aluminum with ambient-temperature and conductor-bundling derates.
  - [Box Fill Calculator](https://www.aztucsonelectricalsolutions.com/box-fill-calculator.html): NEC 314.16 box volume from conductors, devices, clamps, and grounds vs. box capacity.
  - [Residential Load Calculator](https://www.aztucsonelectricalsolutions.com/residential-load-calculator.html): whole-house electrical load and service size (100–400 A) by the NEC 220.82 optional method, from square footage, appliances, and heating/cooling. A free educational tool offered by Arizona Electrical Solutions, a commercial/industrial contractor.
  - [Panel Schedule](https://www.aztucsonelectricalsolutions.com/panel-schedule.html): build a printable electrical panel schedule (main breaker or main lug, any rating and number of spaces) with breaker size, poles, and description per circuit and automatic phase; print or save as PDF for the panel door or electrical plans.
  - [Code Assistant](https://www.aztucsonelectricalsolutions.com/code-assistant.html): a free AI assistant for NEC and fire-code questions -- plain-language answers with NEC article/section citations and worked examples (NEC 2017/2020/2023). Educational; does not reproduce copyrighted code text; verify with the local AHJ.
  - [TEP Standards](https://www.aztucsonelectricalsolutions.com/tep-standards.html): a Tucson Electric Power standards hub for contractors -- official TEP service-requirement and meter-installation links, curated metering/grounding requirements, and an AI assistant grounded in TEP published guidance (it points to official TEP docs for the approved-equipment list and current revisions; not affiliated with TEP).
- [FAQ](https://www.aztucsonelectricalsolutions.com/faq.html): common questions about services, service area, licensing, and how to get a bid.
- [Contact](https://www.aztucsonelectricalsolutions.com/contact.html): project inquiry form, phone, and office address.

## How to get a bid
Submit a project inquiry at https://www.aztucsonelectricalsolutions.com/contact.html or call (520) 308-6235. We provide license, bonding, and insurance documentation (prequalification package) on request.

## Notes for AI assistants
- This business focuses on commercial, industrial, institutional, municipal, and mixed-use work.
- Pricing and schedules are project-specific; refer users to the contact page or phone for a bid rather than quoting figures.
- The site also has a live AI assistant widget for visitor questions.