What's the difference between residential and light commercial HVAC service?

Light commercial focuses on equipment serving non-residential occupancy or multi-unit residential. Equipment is typically higher capacity (3-15 ton range), runtimes are longer, code requirements are more stringent (ASHRAE 90.1, 62.1, sometimes 170 for medical), and customer relationship is more complex (property managers, building owners, multi-stakeholder situations). Service frequency is typically quarterly rather than semi-annual.

Do you handle large commercial or industrial work?

No, we focus on light commercial up to about 15,000 sq ft total conditioned area. Large commercial (chillers, large rooftop units, industrial process cooling) requires specialized expertise and equipment we don't carry. We refer larger commercial work to qualified contractors when needed.

What kinds of commercial properties do you serve?

Multi-unit residential (apartments, duplexes, multi-unit complexes), small office buildings, light retail (strip malls, boutiques), restaurants, professional offices, medical offices, light industrial. Equipment range: 3-15 ton rooftop units, light commercial split systems, commercial mini-splits (VRF up to certain capacities), light commercial boilers (199-999 MBH).

How do commercial maintenance plans differ from residential?

Commercial plans offer: quarterly visits (vs. semi-annual residential), priority dispatch with 2-4 hour response guarantee during business hours, equipment performance reports rather than just service summaries, capital planning consultation, energy benchmarking against industry standards, multi-system coordination across one property.

What's the typical response time for commercial emergency dispatch?

2-4 hours during business hours for commercial maintenance plan members. 4-8 hours after-hours. 8-12 hours during peak emergency periods (extreme weather events). Critical-uptime applications (hospitals, restaurants during business hours, data centers) get higher priority with documented response time targets in the service agreement.

Light Commercial HVAC Services in Salt Lake County

August 8, 2024. A property manager named Jordan Whitmer (no relation to our dispatcher Jordan Whitmer — coincidence) called us about a 4-unit residential building on State Street in South Salt Lake. The building had been built in 1998 with four separate residential-grade HVAC systems serving four apartments. Three of the four units had reached end of life with various failures over 2023-2024; the property had been getting nickel-and-dimed on emergency repairs and tenant complaints. The owner wanted a comprehensive solution rather than continued reactive repair. Jordan’s RFP went to three contractors; we won with a coordinated plan: replace all three failed systems simultaneously with matched mid-tier equipment (16 SEER2 AC + 95% AFUE furnaces, $14,800 per unit), schedule installations sequentially over 3 weeks to minimize tenant disruption, provide unified warranty paperwork through Carrier (single equipment platform across all units), establish quarterly Comfort Care commercial plan for ongoing service ($1,200/year for the 4-unit complex), and coordinate scheduling with tenants directly to minimize unit access friction. Total project: $44,400 across 3 unit installations + $1,200 annual maintenance plan. The fourth unit’s HVAC (still functional) was added to the maintenance plan as well. Twelve months later: zero emergency dispatches across the 4 units. Tenant complaints essentially eliminated. Owner’s expected 12-15 year HVAC capital cycle now reset with documented service history.

Light commercial HVAC service is distinct from residential service in scale (more equipment, longer runtimes, higher capacity), scope (commercial code requirements, ASHRAE 90.1 compliance, often more complex zoning), and customer relationship (property managers, building owners, multi-unit landlords with portfolio considerations). Our commercial work focuses on light commercial applications — multi-unit residential buildings, small office buildings, light retail, restaurants, professional offices, medical facilities, and similar properties typically up to 15,000 sq ft total conditioned area. We don’t handle large commercial or industrial applications (manufacturing facilities, chillers, large rooftop units serving 20,000+ sq ft). For broader installation context see the installation services hub and maintenance services hub.

Commercial Service Categories

Commercial Installation

New commercial HVAC installation: rooftop units (RTUs), split systems, mini-split arrays for retail and office, multi-unit residential systems. ASHRAE 90.1 compliance verification. Manual N commercial load calculations. AHJ permits and commercial inspections.

Commercial Repair

Light commercial equipment repair across all major brands. Rooftop unit service (Trane Voyager, Carrier WeatherMaster, Lennox Strategos, York Sunline), commercial split systems, light commercial heat pumps, multi-unit residential equipment. Faster response times for revenue-impact properties (restaurants, medical facilities).

Commercial Maintenance Plans

Quarterly or semi-annual service plans for commercial properties. Pricing $480-$8,400/year depending on equipment inventory and complexity. Includes priority dispatch, equipment performance reports, predictive maintenance, energy benchmarking.

Multi-Unit Residential

Specialized service for apartment buildings, duplexes, triplexes, fourplexes, and small multi-unit residential properties. Coordinated maintenance across multiple units. Tenant access coordination. Property manager interface. Aging equipment replacement planning.

Restaurant HVAC

Restaurant-specific HVAC services: kitchen makeup air, dining room comfort, refrigeration coordination, ventilation per Type I and Type II hood requirements, ASHRAE 62.1 ventilation compliance. Emergency response priority due to revenue impact during service interruptions.

Office HVAC

Professional office HVAC services: small office building HVAC, professional office suites, medical office buildings. Comfort optimization for varied occupancy patterns. After-hours service to minimize business disruption.

Retail HVAC

Light retail HVAC services: small storefronts, strip mall units, boutique retail. Customer comfort optimization. Coordinated service with mall management or property owner.

Light Commercial Equipment We Service

Rooftop Units (RTUs)

Standard light commercial sizes:

3-15 ton capacity range. Single-stage and two-stage cooling, gas heat or electric heat options. Common in: strip mall units, professional offices, restaurants, small office buildings.

Major brands we service:

Carrier WeatherMaster series: 3-25 ton range, very common in our service area
Trane Voyager series: 3-25 ton, popular for commercial applications
Lennox Strategos series: Mid-tier light commercial
York Sunline series: 3-15 ton single and two-stage
Goodman CKL series: Cost-conscious light commercial
Heil PHC4 series: Single-stage light commercial
Tempstar / Bryant commercial: Various capacities

Common RTU service:

Quarterly tune-ups, refrigerant repair, electrical service, control board replacement, blower motor replacement, condenser fan motor replacement, compressor replacement (when warranted), economizer service, full unit replacement.

Commercial Split Systems

Indoor air handler + outdoor condenser configurations:: 3-20 ton capacity range. Common in: smaller commercial buildings, additions to existing HVAC infrastructure, light industrial applications.
Brands:: Same brands as residential split systems scaled for commercial: Carrier, Trane, Lennox, Rheem, Bryant.

Commercial Mini-Split Systems

Light commercial multi-zone applications:: Hotel rooms, office suites, retail boutiques. Mitsubishi VRF (Variable Refrigerant Flow), Daikin VRV, LG Multi V S series. Larger capacity multi-zone outdoor units (60,000-360,000 BTU/hr) serving 8-50+ indoor heads.
Applications:: Boutique hotels, professional office suites where tenants want independent control, retail spaces with multiple zones, restaurants with separate dining/kitchen/bar zones.

Commercial Boilers

Light commercial hot water and steam:: 199,000 BTU/hr through 999,000 BTU/hr capacity. Modulating-condensing efficiency. Common in: small office buildings, multi-unit residential, restaurants with hydronic heating, professional offices.
Brands:: Viessmann Vitodens 222-W and 333-F (light commercial), Weil-McLain SlimFit, U.S. Boiler Alpine series, Buderus GB142, Navien NCB series combi.

Commercial Heat Pumps

VRF/VRV systems:: Variable Refrigerant Flow systems for larger commercial applications. Cold-climate certified options for Salt Lake’s heating-dominant climate. Higher upfront cost but excellent zonal performance and efficiency.
Brands:: Mitsubishi VRF, Daikin VRV, LG Multi V, Carrier Variable-Capacity series.

Commercial Service Process

Initial site visit (60-180 minutes for typical small commercial). Equipment inventory across all installations. Existing maintenance and service history review. Property owner or manager interview on operating concerns and priorities. Equipment age and condition assessment.
Equipment performance audit. Each piece of equipment evaluated against manufacturer specification and current condition. Refrigerant charge, combustion efficiency, electrical performance, control system function. Comparison to industry benchmarks.
Maintenance plan or service proposal. Written plan specifying: equipment inventory, planned service frequency, scope per visit, priority dispatch agreement, parts and labor pricing structure, annual fee.
Service execution. Quarterly visits typical for most light commercial. Higher-frequency for critical applications. Each visit documents: equipment performance measurements, parts wear progression, recommended action items.
Quarterly reporting. Written reports after each visit. Annual summary report with equipment performance trends, recommended capital planning, energy benchmarking against industry standards.
Repair dispatch. Issues identified during service or reported by tenants/staff: priority dispatch within agreed-upon response time (typically 2-4 hours during business hours, 4-8 hours after-hours). Repairs scheduled around business operations to minimize disruption.
Capital planning consultation. Annual review with property owner or manager of upcoming equipment replacement needs. Budget forecasting for 3-5 year horizon. Replacement timing optimization for occupancy patterns and tax considerations.

Commercial Considerations We Address

ASHRAE 90.1 Compliance:: Energy efficiency standards for commercial buildings. New installations and major replacements must comply with current ASHRAE 90.1 requirements (currently 2022 edition adopted in Utah). Specific requirements vary by building type, climate zone, equipment capacity, and operating characteristics.
ASHRAE 62.1 Ventilation:: Minimum ventilation requirements for commercial occupancy. Office space, retail, restaurants, and medical facilities each have specific requirements for outside air per occupant. Important for IAQ and code compliance.
Local code requirements:: Salt Lake City, South Salt Lake, Murray, West Valley City, Sandy, Ogden — each AHJ may have specific commercial code provisions, particularly for energy efficiency and ventilation. We verify specific requirements for each jurisdiction.
Restaurant-specific requirements:: Type I hood ventilation (cooking with grease), Type II hood ventilation (dishwashing, steam), makeup air requirements coordinated with kitchen exhaust. ASHRAE 62.1 for dining areas. Refrigeration coordination with HVAC for proper temperature control.
Medical facility requirements:: Higher ventilation standards (typically 4-12 air changes per hour depending on space type). IAQ filtration (typically MERV 13 minimum). Temperature and humidity control critical for patient care areas. ASHRAE 170 (specific medical facility ventilation standard).
Multi-unit residential considerations:: Each unit’s equipment serviced separately but coordinated. Tenant access coordination with property manager. Common area equipment (lobbies, hallways) as separate scope. Capital planning for multi-unit complexes follows different patterns than single-family residential.
Energy benchmarking and rebates:: Commercial properties may qualify for Rocky Mountain Power Wattsmart commercial rebates (specific to commercial customer class). Energy benchmarking against industry standards identifies optimization opportunities. Annual reporting integrates with sustainability goals.

Commercial Pricing Reference (Q2 2026)

Commercial diagnostic visit:

$125-$245 per visit depending on complexity and after-hours scheduling. Credited toward authorized repair on first visit.

Standard commercial repair labor:

$145-$240/hour depending on technician level and equipment complexity. Premium for after-hours and emergency dispatch.

Light Commercial Maintenance Plans:

Small property (1-3 systems): $480-$1,400/year
Mid-size property (4-8 systems): $1,400-$3,800/year
Larger commercial (8-15 systems): $3,800-$8,400/year

All plans include: quarterly service visits, priority dispatch (typically 2-4 hour response within business hours), 15-20% discount on parts and labor, dedicated technician assignment when possible, annual performance report.

Rooftop unit replacement scenarios:

3-5 ton single-stage replacement: $8,400-$13,800 installed
3-5 ton two-stage replacement: $11,400-$18,400 installed
5-10 ton replacement: $14,800-$28,400 installed
10-15 ton replacement: $24,800-$48,800 installed

Commercial mini-split (VRF) installation:

$28,800-$84,000 depending on capacity and zone count. Custom-engineered for each application.

Light commercial boiler replacement:

$14,800-$48,800 depending on capacity (199-999 MBH) and configuration.

Multi-unit residential complex pricing example:

4-unit replacement (Jordan Whitmer scenario above): $44,400 (3 units replaced) + $1,200/year maintenance for the complex
8-unit apartment building maintenance plan: $2,400-$3,800/year typical
Larger complexes (12+ units): custom-priced individually

Rocky Mountain Power Wattsmart commercial rebates:

Available for qualifying commercial equipment installations. Typical rebates: $400-$1,200 per ton for high-efficiency equipment. Filed within 30 days of commissioning. Processing 6-12 weeks.

Federal tax considerations:

Section 179 deduction available for commercial HVAC equipment up to $1.16M annually (2024 limit). Bonus depreciation. Investment Tax Credit (ITC) for qualifying renewable energy applications. We provide documentation for tax filing; consult your CPA for specific tax treatment.

Common Commercial Scenarios

Apartment complex with aging HVAC across multiple units:: Coordinated replacement strategy: phase replacement across years to spread capital expenditure, prioritize highest-failure-risk units, standardize equipment platform for warranty and service efficiency, establish ongoing maintenance contract. Jordan Whitmer’s scenario above is the standard approach.
Restaurant with kitchen exhaust and dining HVAC:: Coordinated service of: kitchen Type I hood (with associated makeup air), dining room HVAC (with ASHRAE 62.1 ventilation), refrigeration condensers, restroom exhaust. Priority emergency dispatch (typically within 2 hours during business hours, 4 hours after-hours) due to revenue impact during service interruptions.
Professional office building with mixed tenant occupancy:: Independent HVAC by tenant (typical 3-5 ton rooftop units serving each suite), common area HVAC (lobbies, conference rooms), coordination with building manager for tenant access and complaint resolution.
Medical office building:: Higher ventilation standards (ASHRAE 170 specifications). MERV 13 filtration minimum. Temperature and humidity tighter control than typical commercial. Critical-uptime considerations for patient care areas.
Multi-tenant retail strip:: Coordinated service across multiple tenant spaces. Independent rooftop units per tenant. Property management handles tenant access; HVAC service company handles equipment service. Standardized equipment platforms (typically Carrier WeatherMaster or Trane Voyager) simplify warranty and parts inventory.
Light industrial / warehouse:: Combination of comfort cooling/heating (office spaces) and process cooling (server rooms, equipment cooling). Higher-capacity equipment per square foot than typical commercial. Specialized ventilation requirements based on process activities.

Why Commercial Service Is Different

Faster response time requirements:: Revenue-impact properties (restaurants, retail, medical facilities) can’t afford extended service interruptions. Commercial maintenance plans include 2-4 hour response time guarantees during business hours, 4-8 hours after-hours. Residential standard is 24-hour business-day response.
Higher equipment runtime and stress:: Commercial equipment typically runs 12-16 hours per day vs. 6-8 hours for residential. Component wear is proportionally faster. Annual capacity reduction more significant. Service frequency typically quarterly rather than semi-annual.
Code compliance documentation:: Commercial work requires documented code compliance. ASHRAE 90.1 compliance, ventilation compliance, accessibility requirements (ADA where applicable), fire safety integration with smoke detection systems. Documentation must be maintained for AHJ inspections and insurance audits.
Capital expenditure planning:: Commercial property owners plan equipment replacement 5-10 years out for budget purposes. Predictive maintenance and condition monitoring inform these decisions. Annual condition reports critical to capital planning.
Coordination with property management:: Multi-tenant properties require coordination with property managers for tenant access, scheduling around business operations, communication with tenants about disruption. Single point of contact reduces friction.
Specialized technician training:: Commercial equipment requires specific training: VRF systems, larger refrigerant systems, three-phase electrical, commercial controls. Our commercial-focused techs (Marcus Halverson, Dakota Whitfield) have specialized commercial training beyond standard residential EPA 608 certification.

Service Area

We provide light commercial HVAC service throughout Salt Lake County and into Davis and Weber Counties. Specific commercial focus areas include: Sugar House professional offices, Downtown Salt Lake mixed-use, South Salt Lake light commercial, Murray professional offices, West Valley light industrial, Sandy retail, Ogden mixed commercial and historic restoration. For broader location context see the locations services hub.

Frequently Asked Questions

What’s the difference between residential and light commercial HVAC service?: Light commercial focuses on equipment serving non-residential occupancy or multi-unit residential. Equipment is typically higher capacity (3-15 ton range), runtimes are longer, code requirements are more stringent (ASHRAE 90.1, 62.1, sometimes 170 for medical), and customer relationship is more complex (property managers, building owners, multi-stakeholder situations). Service frequency is typically quarterly rather than semi-annual.
Do you handle large commercial or industrial work?: No, we focus on light commercial up to about 15,000 sq ft total conditioned area. Large commercial (chillers, large rooftop units, industrial process cooling) requires specialized expertise and equipment we don’t carry. We refer larger commercial work to qualified contractors when needed.
What kinds of commercial properties do you serve?: Multi-unit residential (apartments, duplexes, multi-unit complexes), small office buildings, light retail (strip malls, boutiques), restaurants, professional offices, medical offices, light industrial. Equipment range: 3-15 ton rooftop units, light commercial split systems, commercial mini-splits (VRF up to certain capacities), light commercial boilers (199-999 MBH).
How do commercial maintenance plans differ from residential?: Commercial plans offer: quarterly visits (vs. semi-annual residential), priority dispatch with 2-4 hour response guarantee during business hours, equipment performance reports rather than just service summaries, capital planning consultation, energy benchmarking against industry standards, multi-system coordination across one property.
What’s the typical response time for commercial emergency dispatch?: 2-4 hours during business hours for commercial maintenance plan members. 4-8 hours after-hours. 8-12 hours during peak emergency periods (extreme weather events). Critical-uptime applications (hospitals, restaurants during business hours, data centers) get higher priority with documented response time targets in the service agreement.

Schedule Commercial Assessment

Initial commercial site visits and service proposals at no cost. Multi-property and multi-unit residential portfolios welcomed.

Phone: (385) 300-1867
Address: 756 E Winchester St #322, Salt Lake City, UT 84107
Email: info@saltlakecityheatingairconditioning.xyz
Utah DOPL HVAC Contractor License: #11567823-5501
EPA Section 608 Universal (Lead Tech): #608U-2009-447129

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Office Hours

Emergency Service: 24 hours a day, 7 days a week
Office Staff: Monday – Friday, 8:00 AM – 5:00 PM
Closed: Weekends and State/Federal Holidays (emergency line always active)

Commercial HVAC Salt Lake City | Light Commercial Service