Belknap Plumbing Heating has provided over 75 years of Plumbing and Heating services, and maintenance from early beginnings to carry on a professional business.Belknap Plumbing Heating & Cooling Company continues to expand providing immediate response. Belknap Plumbing Heating & Cooling is an easy choice to call first, because you always know the price before they start and it's fixed right the first time. The clean, professional technicians handle 24 HR Emergency Service, 365 days a year. The flexible schedule appointment times and workmanship are guaranteed. Belknap Plumbing Heating & Cooling Company specializes in any underground utility breaks sewer or water (repair or replacement and design of sewage systems & installation, soil tests, septic systems, mound systems, holding tanks) and all air conditioning needs.