Reliable mechanical support for industrial & commercial facilities

Choosing the right mechanical services company keeps your operation safe, efficient, and on budget. Bunney’s Inc. brings decades of Arizona experience to design, build, and maintain critical building and process system serving businesses across the state with responsive scheduling and clean, compliant execution.

New to Bunney’s? Learn who we are and explore our capabilities.

What we do

We plan, install, upgrade, and service mission-critical systems end to end engineering through maintenance so you have one accountable partner.

  • HVAC systems (rooftops, split systems, make-up air, VAV/VRF)

  • Chillers & boilers (air/water-cooled, hydronic, steam)

  • Cooling towers (inspection, rebuilds, water treatment integration)

  • Process & utility piping (compressed air, steam, gas, hydronic; ASME B31.x)

  • Pumps & fluid handling (circulation, condensate, booster sets)

  • Controls & automation (BAS integration, sensors, commissioning)

  • Electrical & mechanical tie-ins (equipment setting, rigging, start-up)

  • Preventive & predictive maintenance (PM routes, vibration/IR, oil and water analysis)

Bunney’s Inc. is trusted by Contractors, Cities, and Government Entities

Call Us for a Quote

(623) 875-1201

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    Why Bunney’s Inc.

    • Single-source accountability: Design, fabrication, installation, and service no handoffs.

    • Arizona-ready practices: Solutions tuned for high heat, dust loads, and monsoon events.

    • Safety & compliance: OSHA programs; work to NFPA 70E, SMACNA, and ASME standards.

    • Data-driven decisions: Load studies, trend logs, and energy analyses to improve ROI.

    • Minimal disruption: Phased work, off-hours shutdowns, and tight site housekeeping.

    • Clear documentation: Start-up reports, O&M manuals, and maintenance logs delivered at closeout.

    Maintenance programs that prevent downtime

    A structured plan keeps equipment efficient and compliant while extending service life.

    • Scheduled PMs with parts forecasting

    • Predictive diagnostics: vibration, thermal imaging, oil & water chemistry

    • BAS trend reviews to tune sequences and setpoints

    • Tower cleanings, disinfection support, and water treatment coordination

    • Seasonal changeovers and critical spares planning

    • Service level options: essential, standard, or full-coverage

    Typical project journey

    1. Assessment & scope – verify loads, risks, and constraints

    2. Design & budgeting – sealed drawings or design-build with value options

    3. Fabrication & pre-build – spool pieces, skids, and controls pre-tested

    4. Install & start-up – rigging, tie-ins, QA/QC, and commissioning plan

    5. Training & turnover – O&M, owner training, warranty enrollment

    6. Ongoing service – PM routes, analytics, and rapid response

    Industries we support

    Manufacturing • Food & beverage • Energy/utilities • Data centers • Healthcare • Public sector and education • Commercial campuses and mixed-use facilities

    FAQs

    What’s the difference between a mechanical contractor and a mechanical service company?
    Contractors typically focus on new installs and capital projects; service companies maintain and optimize systems after turnover. Bunney’s Inc. does both, giving you one team from design through lifecycle maintenance.

    How often should cooling towers and chillers be serviced in Arizona?
    Towers: monthly inspections, quarterly deep cleanings, and continuous water treatment oversight. Chillers: seasonal start-up/shutdown plus quarterly checks; more frequent service for high-load sites.

    Can you work in active facilities without disrupting operations?
    Yes. We phase work, schedule tie-ins off-hours, and provide temporary cooling/heating where needed to keep production and tenant comfort online.

    Do you offer design-build and controls integration?
    We deliver plan-and-spec or design-build, including BAS programming, sensor upgrades, and commissioning so equipment and controls function as one system.

    How do you improve energy efficiency without replacing everything?
    Sequence tuning, VFDs, heat-recovery opportunities, and tower/chiller optimization often deliver measurable savings before any major capital spend.

    What documentation will we receive at closeout?
    As-built drawings, start-up and test reports, water treatment records, O&M manuals, warranty certificates, and a recommended PM schedule.

    Where do you operate?
    Based in Phoenix and serving businesses across Arizona industrial, commercial, and institutional sites statewide.

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