Business Details
32 Years
experience
Emergency
services
Expert Plumbing & HVAC Services in Livingston, NJ
Since 1994, William C Diamond Plumbing & Heating has been a trusted provider of comprehensive plumbing, heating, and cooling solutions in Livingston, NJ, and surrounding areas. Founded by master plumber William C. Diamond, our family-run business combines decades of industry expertise with a commitment to personalized service and community values. Our licensed technicians deliver reliable emergency repairs, system installations, and maintenance services, prioritizing customer satisfaction through transparent communication and quality workmanship. With a focus on innovation and client education, we empower homeowners and businesses to maintain efficient, safe, and comfortable environments. 
Services
Plumbing Repairs
Heating Services
Cooling Systems
Emergency Plumbing
HVAC Maintenance
Water Heater Installation
Sewer Line Repair
Details
- Year established: 1994
Highlights and features
- 30+ years of local plumbing expertise since 1994
- 24/7 emergency service for urgent plumbing needs
- Fully licensed and insured technicians with industry certifications
- 100% satisfaction guarantee on all services
- Family-owned business with community-focused values
Associations and certifications
- MASTER PLUMBER LIC #36BI01030300
- HVACR #19HC00267300
- HIC #13VH01532200
What people say
Super professional
Clear and honest
Exceptional communication
Quality results
Family-friendly technicians
Services
Plumbing Repairs
Our licensed plumbers address leaks, clogs, and pipe damage with precision and care. We utilize advanced diagnostic tools to identify issues quickly and implement durable solutions for residential and commercial properties. With 24/7 emergency availability, we minimize disruption to your daily life while ensuring code-compliant repairs that meet local regulations.
Heating Services
From furnace maintenance to boiler installations, our certified technicians optimize heating systems for efficiency and longevity. We offer annual tune-ups to improve performance, emergency repairs for unexpected failures, and system replacements with energy-efficient models. Our preventative maintenance extends equipment lifespan while reducing energy costs for homeowners and businesses.
Cooling Systems
We provide comprehensive air conditioning solutions including installation, repair, and seasonal maintenance. Our team diagnoses cooling inefficiencies, repairs refrigerant leaks, and ensures optimal airflow through professional duct inspections. For commercial clients, we implement climate control systems that maintain comfort during peak summer months while maximizing energy efficiency.
Emergency Plumbing
Available round-the-clock for urgent plumbing crises, our emergency service responds swiftly to burst pipes, flooding, and sewer backups. Equipped service vehicles carry essential parts for immediate repairs, and our technicians prioritize water damage prevention through rapid mitigation. We guarantee same-day service for critical issues affecting property safety and habitability.
Water Heater Installation
We specialize in traditional tank and tankless water heater installations, offering energy-efficient models that reduce utility bills. Our technicians assess household demand to recommend appropriately sized units and ensure proper venting and pressure regulation. For commercial clients, we implement high-capacity systems designed for consistent hot water supply in demanding environments.
People
William C. Diamond
Owner & Master Plumber
With over 30 years in the plumbing industry, William established the company in 1994 after learning the trade from his grandfather. A licensed master plumber and volunteer firefighter, he oversees operations while maintaining hands-on involvement in complex projects.
Questions
Do you offer 24/7 emergency plumbing services?
Yes, we provide round-the-clock emergency plumbing repairs for urgent issues like burst pipes, flooding, and sewer backups.
What areas do you service?
We serve Livingston, East Hanover, Morris County, and surrounding New Jersey areas for residential and commercial plumbing needs.
Are your technicians licensed and insured?
All our plumbers hold valid licenses including MASTER PLUMBER LIC #36BI01030300 and are fully insured for your protection.
How often should I schedule HVAC maintenance?
We recommend bi-annual HVAC maintenance to ensure optimal performance and extend system lifespan for both heating and cooling units.
Do you guarantee your workmanship?
Yes, we stand by our work with a 100% satisfaction guarantee and will resolve any issues until you're completely satisfied.
Videos
