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24-Hour Plumbing & HVAC Services in Portsmouth, NH
Hart Plumbing and Heating has been dedicated to providing reliable plumbing and HVAC solutions for residential and commercial properties in Portsmouth, NH, and surrounding areas. Our team specializes in emergency plumbing repairs, boiler installations, gas piping services, and seasonal winterization to protect properties during harsh New England winters. With decades of combined experience, we prioritize customer satisfaction through prompt service, licensed technicians, and comprehensive solutions for both urgent and routine heating and plumbing needs.

Our commitment to quality extends to commercial HVAC maintenance, ductwork design, and 24/7 emergency response, ensuring clients receive dependable service regardless of the season. Serving New Hampshire and Maine communities, we maintain full licensing and insurance to uphold the highest standards of safety and professionalism.
Services
Plumbing Repair HVAC Installation Gas Piping Boiler Services Emergency Plumbing Ductwork Maintenance Winterization Commercial HVAC Pipe Leak Repair Water Heater Replacement
Highlights and features
  • We offer 24/7 emergency plumbing and HVAC services for urgent needs.
  • Our technicians are fully licensed and insured in New Hampshire and Maine.
  • Specialized in winterization services to protect plumbing systems from freezing.
  • Experienced team with over 30 years of combined industry expertise.
  • Comprehensive solutions for residential and commercial heating and plumbing systems.
What people say
Prompt service Excellent workmanship Knowledgeable technicians Fair pricing 24/7 availability
Services
Emergency Plumbing
Our certified technicians provide immediate response for burst pipes, leaks, and plumbing failures. With round-the-clock availability, we minimize property damage through rapid diagnosis and repair. Clients receive priority service for critical issues like frozen pipes and water heater malfunctions.
HVAC Maintenance
Comprehensive heating and cooling system upkeep ensures optimal performance year-round. Services include furnace inspections, ductwork checks, and seasonal efficiency tuning. Preventive care extends equipment lifespan while reducing energy costs for residential and commercial clients.
Gas Piping
Licensed installers handle residential and commercial gas line projects, including new piping and leak repairs. We ensure safe, code-compliant installations for heating systems and appliances. Emergency gas leak response prioritizes client safety and system integrity.
Boiler Services
Specialized maintenance, repair, and installation for natural gas and propane boilers. Our experts address efficiency issues and emergency failures while providing winterization services. Commercial clients benefit from tailored maintenance plans for continuous operation.
Winterization
Customized winter protection for vacant properties prevents frozen pipes and heating system failures. Services include line insulation, thermostat adjustments, and spring reactivation. This proactive solution safeguards against costly cold-weather damage in New England's climate.
People
Kevin Hart
Owner
With over 30 years in the plumbing and HVAC industry, Kevin leads the company's commitment to technical excellence and customer care. He oversees operations and strategic growth.
Geri
Customer Service Manager
Geri coordinates emergency dispatch and client communications, ensuring prompt service scheduling and issue resolution. Her team manages 24/7 call responses and service logistics.
Terry
Lead Technician
Certified plumber with 15+ years' experience handling complex repairs and installations. Terry specializes in emergency diagnostics and client education about system maintenance.
Adam
HVAC Specialist
Adam focuses on heating system repairs and maintenance, with expertise in duct design and energy-efficient solutions for residential and commercial properties.
Jeri
Dispatch Coordinator
Jeri manages emergency service requests and coordinates technician deployment, ensuring rapid response for critical plumbing and HVAC failures.
Questions
When should I call for emergency plumbing services?
Call immediately for burst pipes, gas leaks, or heating failures threatening safety or property. Our 24/7 team responds within minutes to critical issues.
Do you service both residential and commercial properties?
Yes, we handle plumbing, HVAC, and gas piping needs for homes, businesses, and commercial facilities across New Hampshire and Maine.
What areas do you serve?
We cover Portsmouth, Dover, Rochester, and surrounding New Hampshire communities, plus Kittery, York, and other southern Maine locations.
How can I prevent frozen pipes in winter?
Our winterization service insulates lines, adjusts thermostats, and ensures heating systems function properly to protect vacant properties during cold months.
Are your technicians licensed and insured?
All technicians hold state-required licenses with full insurance coverage for New Hampshire and Maine residential and commercial projects.