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Claim This BusinessH.D. Johnson has maintained a presence in Washington, DC for multiple decades, operating as a full-service HVAC and plumbing contractor serving residential clients across the district and surrounding Maryland suburbs. The company holds a 3.9-star rating compiled from 43 customer reviews, reflecting a mixed but substantial track record in the local market. Operating Monday through Friday from 7:30 AM to 4 PM, the contractor focuses on standard business hours without emergency after-hours availability, which homeowners should factor into their service planning.
Without access to the company website, specific brand partnerships or specialized certifications cannot be verified from published materials. Review data reveals inconsistent service delivery, with some customers reporting satisfactory experiences while others describe significant billing disputes and property damage concerns. The contrast between positive and negative reviews suggests service quality may vary depending on the specific technician assigned to each job.
Several reviewers named individual technicians in their accounts. A Knight described a provider who arrived on time, communicated clearly, and explained recommended system updates thoroughly. Conversely, Kristin reported a four-hour diagnostic visit that resulted in an $800 charge followed by a $3,000 repair quote, with the owner failing to return promised callbacks. Serge Rigaud described a scenario where initial assessment and final work were performed by different technicians, leading to complications on his account.
Mixed sentiment across 43 reviews yields a 3.9-star average, with 1-star reviews concentrated around pricing disputes and property damage while 5-star reviews praise specific technicians by name for communication and diagnostic skill.
| Sunday | Closed |
| Monday | 7:30 AM–4 PM |
| Tuesday | 7:30 AM–4 PM |
| Wednesday | 7:30 AM–4 PM |
| ThursdayToday | 7:30 AM–4 PM |
| Friday | 7:30 AM–4 PM |
| Saturday | Closed |
Diagnostic and repair services for heating and cooling systems, addressing component failures and system malfunctions.
New equipment installation for outdated or failed HVAC systems in residential properties.
General plumbing repairs including drain work, valve installation, and access to plumbing systems behind walls.
Preventive maintenance and tune-ups to extend HVAC system lifespan and optimize performance.
Electrical repairs associated with HVAC system installations and upgrades.
Evaluation of home air quality and recommendations for improvement systems.