Committed to high-quality, professional, and
friendly serviceKnown for reliability, timely work, and customer satisfaction
At our family-owned and operated business, we’re committed to providing reliable, high-quality HVAC services that prioritize your comfort and peace of mind. With a skilled and trusted team, we deliver friendly, efficient service every day of the year to ensure the air quality in your home is never compromised.
- Fully registered and insured for your protection
Skilled team, up-to-date with the latest HVAC trends - Built on values of friendliness, trust, and accommodation
- Fast, reliable service, 365 days a year
- Dedicated to delivering top-notch air quality
Comprehensive HVAC Solutions for Your Home and Business
At Coastal Mechanical LLC, we specialize in all things HVAC, bringing decades of expertise to every project we undertake. Our comprehensive approach to heating, ventilation, and air conditioning ensures that whether you’re dealing with a simple residential repair or a complex installation, we have the knowledge and experience to deliver exceptional results. As both a Mitsubishi Diamond Dealer and Bryant Factory Authorized Dealer, we maintain the highest standards of technical excellence while offering cutting-edge equipment from industry-leading manufacturers.
Our commitment to treating customers as if they were family forms the foundation of everything we do. This philosophy, established when Coastal Mechanical LLC was founded, continues to guide our operations today. We understand that HVAC systems are critical to your comfort and productivity, which is why we combine technical expertise with genuine care for each client’s unique needs. From initial consultation through installation and ongoing maintenance, we ensure every interaction reflects our dedication to quality service at fair, transparent pricing.
Residential HVAC Services
Homeowners across the Seacoast area trust us for reliable residential HVAC solutions that keep their families comfortable year-round. We install, repair, and service all makes and models, from routine maintenance to full system replacements. Today’s HVAC systems offer advanced features like variable-speed compressors, smart thermostats, and enhanced filtration. We stay up to date with these innovations to help you choose the most efficient, cost-effective solution. Upgrading to a high-efficiency system can cut cooling costs by up to 50%, making it a smart investment in both comfort and energy savings.
Light Commercial HVAC Excellence
Light commercial HVAC systems require routine maintenance and timely repairs to keep your business running smoothly. We specialize in servicing small to mid-sized commercial spaces like offices, retail shops, and small warehouses—keeping your heating and cooling systems operating efficiently and reliably. From diagnosing and fixing uneven temperatures to resolving airflow or equipment issues, our technicians handle the day-to-day HVAC challenges that impact comfort and productivity.
Light commercial HVAC systems often operate for long hours and under varying loads, making regular upkeep essential. We offer responsive repair services and preventative maintenance plans that help identify and address minor issues before they lead to costly breakdowns. Whether it’s replacing worn components, calibrating thermostats, or cleaning coils and filters, we provide the expert care your system needs to perform at its best—all with minimal disruption to your business.
Complete HVAC Care
Emergency Services and Rapid Response
HVAC emergencies don’t follow convenient schedules, which is why we offer round-the-clock emergency service for our clients. When your system fails during extreme weather conditions, every minute counts. Our emergency response team stands ready to diagnose and resolve critical issues quickly, minimizing discomfort and potential damage to your property. We understand that proper air control and refrigeration is of maximum importance, particularly for businesses where temperature fluctuations can impact inventory, equipment, or customer satisfaction.
Our emergency service extends beyond simple repairs. We maintain comprehensive inventories of common replacement parts, enabling immediate fixes for many issues. For more complex problems requiring specialized components, our established relationships with suppliers ensure rapid procurement and installation. This comprehensive approach to emergency service has earned us the trust of countless customers who depend on our reliability when facing unexpected HVAC failures.
Installation Excellence and System Design
Proper HVAC installation requires more than simply connecting equipment. We begin each installation project with thorough load calculations and system design, ensuring your new equipment delivers optimal performance and efficiency. Our installation process addresses critical factors including:
- Accurate sizing calculations that prevent the energy waste and comfort issues associated with oversized or undersized equipment
- Ductwork evaluation and modification to ensure proper airflow distribution throughout your space
- Integration with existing systems when performing partial replacements or upgrades
- Compliance with local building codes and manufacturer specifications to protect your warranty coverage
Maintenance Programs and Long-term Care
Regular maintenance represents the most cost-effective way to extend equipment life, maintain efficiency, and prevent unexpected breakdowns. Our maintenance programs include comprehensive inspections, cleaning, and adjustments that keep systems operating at peak performance. During maintenance visits, we check refrigerant levels, test electrical connections, clean coils and filters, verify thermostat calibration, and perform dozens of other tasks that collectively ensure reliable operation.
The benefits of professional maintenance extend beyond preventing breakdowns. Well-maintained systems consume less energy, provide better comfort, and maintain healthier indoor air quality. Industry studies demonstrate that regular maintenance can extend equipment life by 40% or more while reducing energy consumption by up to 30%. These savings, combined with fewer emergency repairs and consistent comfort, make maintenance programs an essential investment for our clients.
As Coastal Mechanical LLC continues serving Epping, Lee, Nottingham, Raymond, Newmarket, and Exeter, NH, we remain committed to the values that have guided us from the beginning. Our family-oriented approach, technical expertise, and dedication to fair pricing create lasting relationships with customers who trust us for all their HVAC needs.
