D & R Heating & Air Conditioning in Baltimore: Residential and Commercial HVAC with Load Calculations
D & R Heating & Air Conditioning is a licensed HVAC contractor serving Baltimore residential and commercial properties, operating since the mid-1980s with a focus on system design, installation, and maintenance contracts rather than emergency-only service calls.
What D & R actually is
The company holds Maryland HVAC licenses required for permit-dependent work in Baltimore and performs load calculations before recommending equipment size, a practice that separates competent design from oversized units that short-cycle and waste energy. They install systems with seasonal energy efficiency ratings (SEER) ranging from standard efficiency to high-efficiency models and handle both furnace and air-conditioning replacements, as well as service and repair on existing equipment across brands.
Services and pricing
D & R offers three tiers of work: maintenance contracts (typically $150 to $250 annually for two seasonal inspections and cleaning), repair calls (service charge usually $100 to $150, plus parts and labor at $85 to $120 per hour), and new system installation. Full system replacement—furnace and AC together—runs $5,000 to $9,000 depending on capacity and efficiency rating, with permits (required in Baltimore for most HVAC work) adding $200 to $400 to the project cost. Confirm current pricing by calling directly, as labor rates and parts costs shift seasonally.
Installation includes ductwork evaluation; many older Baltimore row homes have undersized or unbalanced ducts that limit system performance even after equipment replacement. D & R performs blower-door testing on some jobs to identify air leaks that raise heating and cooling costs, though this adds $300 to $500 to an estimate.
How it compares to other Baltimore HVAC options
Goller Heating & Air Conditioning, another established Baltimore contractor, emphasizes commercial work and larger residential projects, often quoting higher for standard residential calls; choose Goller if your property is industrial or a multi-unit building. Comfort Experts HVAC operates on a call-based model with less emphasis on maintenance contracts, suitable if you prefer paying per visit rather than annual coverage. D & R's strength lies in load calculation and seasonal maintenance packages, making it the right choice for homeowners planning long-term equipment reliability rather than one-off repairs. National chains like Mr. Plumber (which handles HVAC alongside plumbing) typically charge more for the same service and may oversell capacity.
Who it suits and who it does not
D & R works well for Baltimore homeowners with aging systems (15+ years old) or those building maintenance plans into their budget. Tenants and property managers of small multifamily buildings find their commercial licenses and multi-unit experience useful. The company is less suited to renters needing a single emergency repair with no follow-up, or to customers unwilling to schedule inspections in advance. They do not appear to offer financing options, which matters for customers unable to pay $5,000 to $9,000 upfront for replacement systems.
What the first visit involves
An initial call generates a free estimate that includes a site visit to assess ductwork, existing equipment condition, and heating/cooling load based on square footage, insulation, window count, and air leakage. The technician will recommend SEER ratings and system sizes tailored to your home, not the largest or smallest option available. Estimates are typically valid for 30 days. If you proceed, D & R schedules installation (usually one to three days), handles permit paperwork, and performs a final test to confirm airflow and thermostat function.
Hours, location, and logistics
D & R operates Monday through Friday, 8 a.m. to 4:30 p.m., with no advertised weekend or evening emergency service. Call to confirm current hours and discuss emergency protocols if you need service outside these windows. The company is based in Baltimore proper and serves the city and nearby counties; confirm service area before booking. Street parking is typical for service calls at residential addresses; no special parking requirement applies to customers.
D & R Heating & Air Conditioning fills the gap between oversized chain contractors and small one-person operators, offering licensed expertise and load-based design at a scale suited to Baltimore's dense residential stock and older building shells.
