The Home of Quality Craftsmanship

Koval Plumbing, Heating & Air Conditioning Inc.

Phone Icon (978) 856-8436 
Fully Licensed & Insured

MA-M-12405
NH-M-4316
NH-GFE - 0803006 

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Emergency Services



Call for Emergency HVAC Services in Merrimack Valley

HVAC and plumbing problems don’t always keep to regular business hours. That’s something we understand at Koval Plumbing Heating and Air Conditioning Inc. We offer 24/7 emergency HVAC services in Merrimack Valley and Southern New Hampshire to ensure that you’re never left without a solution when issues arise with your system.

Working with our highly trained technicians, you can take care of a wide range of problems at any hour of any day. That means complete peace of mind and less time spent sweltering, shivering, or suffering through stale air. Some of the emergencies we can help with include:

Broken and Leaking Pipes
Thermostat Malfunctions

Sump Pump Issues
Clogged Drains

A/C Failure

HVAC Services in Merrimack Valley, MA

Never Compromise Your Comfort

You deserve pipes and an HVAC system that meet your needs and keep you comfortable. With an emergency plumber or technician from our team, you can have just that. Even if you aren’t sure what the source of a problem is, we have the skills and equipment to quickly assess, identify, and treat them so that you spend as little time as possible without the modern amenities that preserve your comfort.

Whether you’re a homeowner with an elderly family member whose health is at risk in the summer heat or a business professional who can’t afford to turn customers away because of a plumbing leak, let us lend a hand. No matter the situation, our emergency HVAC services and pipe repair give you the robust solutions necessary to restore your property to its full function.


Trusted for Quality and Value

Over the years, we’ve served a diverse community of customers and provided countless fixes for critical problems. Through it all, we’ve earned the trust of those we serve through simple, honest, and effective work. From HVAC unit replacements to fixture and faucet replacements, we’re the company people call when they can’t afford to wait or deal with the same issue again in the near future.

We deliver work that lasts and stands up under pressure. It’s all part of our commitment to an exceptional experience for every customer. Our approach gets results, and it’s why we remain one of the area’s most relied-upon companies when it comes to plumbing and HVAC emergencies.

Contact us today to get HVAC and plumbing help when you need it--even after hours. We proudly serve the Merrimack Valley and Southern New Hampshire, as well as the surrounding areas.