Shapiro & Duncan in Baltimore: Licensed HVAC Installation and Service Since 1946
Shapiro & Duncan is a family-owned HVAC contractor that has operated continuously in Baltimore for nearly 80 years, handling residential heating, air conditioning, and maintenance across the city and surrounding counties. The company holds Maryland HVAC licenses and performs load calculations before system replacement, a step that determines whether your home actually needs a 3-ton or 4-ton unit rather than oversizing by habit.
What Shapiro & Duncan Actually Is
A full-service heating and cooling contractor rather than a retail outlet or franchise branch. The business installs and repairs furnaces, heat pumps, air conditioners, and ductwork, and offers seasonal maintenance contracts. Work includes both emergency repairs and planned replacements; they also handle duct cleaning and sealing. Licensed technicians perform diagnostics on-site before quoting repairs, so you know the exact problem before deciding whether to fix or replace.
Services and Pricing
Installation of a new air conditioning system runs approximately $4,500 to $7,500 for a standard single-family home, depending on tonnage, efficiency rating (SEER), and whether existing ductwork needs modification. Furnace replacement typically costs $3,000 to $5,500 for a mid-efficiency unit. Heat pump systems, which handle both heating and cooling, range from $5,500 to $9,000 installed. Prices vary with SEER/AFUE ratings; higher ratings cost more upfront but lower monthly utility bills over time. A 16 SEER air conditioner costs more than a 14 SEER model, but the difference compounds across a 15-year lifespan.
Service calls for diagnostics and minor repairs average $150 to $300 depending on complexity. Annual maintenance contracts, which include spring and fall tune-ups, typically cost $250 to $400 per year. Emergency after-hours service carries a premium charge; confirm current rates when calling. Financing options are available; ask about terms and APR when requesting an estimate.
How It Compares to Other Baltimore HVAC Contractors
Shapiro & Duncan occupies the mid-market position: more established and locally rooted than big-box chains like Lowe's or Home Depot HVAC services, but without the premium pricing of some boutique energy-efficiency firms. For straightforward replacement work in a standard rowhouse or colonial, this contractor moves faster than high-touch design consultants and typically charges less. If you need a new furnace by winter and don't have time for a multi-week wait, Shapiro & Duncan's local presence and established supply chains are an advantage over newer online-booking HVAC services that may route jobs to rotating technicians.
Competitors like Roto-Rooter (which has HVAC division) and larger regional chains offer similar services but often carry higher overhead; Shapiro & Duncan's longevity suggests customer retention and repeat work rather than transient pricing. If cost is the only metric, some one-person contractors may quote lower, but lack the licensing history or insurance depth you can verify here.
Who It Suits and Who It Does Not
This contractor works best for homeowners in single-family houses or small multifamily properties who want a licensed, insured, local business that can diagnose a problem without pressure and offer a real maintenance plan. If your heating system has failed in November and you need a fast replacement, local dispatch is faster than waiting for a franchise appointment chain. If you value knowing the company will still be at the same location in five years, local ownership matters.
It is less ideal if you are chasing the absolute lowest bid or if your building is part of a large commercial HVAC service contract (Shapiro & Duncan focuses on residential). If you prefer to shop entirely online and want a guaranteed price before a technician arrives, some newer competitors offer that; Shapiro & Duncan's estimate process requires an on-site visit.
What the First Visit Involves
Call for an appointment and describe the issue: no heat, not cooling evenly, system not starting, noises, or a need for a new installation. A technician visits, runs diagnostics (checking refrigerant levels, airflow, electrical connections, and heat exchanger integrity), and provides a written estimate. For replacements, they perform a load calculation to size the system correctly; this adds 20 to 30 minutes but ensures you don't pay for oversized equipment. You can accept or decline on the spot; most estimates are valid for 30 days.
Hours, Parking, and Logistics
Shapiro & Duncan operates standard business hours Monday through Friday, 8 a.m. to 5 p.m., and offers emergency service outside those hours at a premium rate (confirm current surcharge). The office is in Baltimore; they dispatch to Baltimore, Howard, Anne Arundel, and parts of Carroll County. Schedule appointments by phone; online booking is not available. Technicians arrive in marked vehicles and carry ID. Parking is typically on-street or customer-provided; no special requirements.
Verify current hours and emergency fees by phone before calling late, as availability may shift seasonally.
Why This Matters in Baltimore
Eighty years of continuous operation in a single market reflects local knowledge of Baltimore's older housing stock, aging ductwork, and common heating failures in rowhouses. A contractor who has survived that long builds reputation on repeat service, not rotating customer churn. For a city where homes average 60+ years old and many have original or second-generation HVAC systems, that depth is useful.

