Business Details
50+ Years
experience
Emergency
services
Open 24/7
always available
Trusted HVAC Services in Hanover, MA Since 1947
Cox's Old Colony Hvac & Plumbing has been a trusted provider of HVAC and plumbing services in Hanover, MA, for over 75 years. Our team of licensed, insured, and background-checked technicians specializes in residential and commercial heating, cooling, and indoor air quality solutions. We offer comprehensive services including repairs, installations, preventive maintenance, and custom sheet metal fabrication, utilizing state-of-the-art tools and industry best practices.With a commitment to customer satisfaction, we provide 24/7 emergency services, free consultations, and financing options to ensure reliable comfort solutions for homes and businesses across the South Shore. Our expertise in system sizing, energy efficiency, and indoor air quality improvements makes us the region's go-to HVAC partner.
Services
HVAC Repair
New Installations
Preventive Maintenance
Service Agreements
Indoor Air Quality
Sheet Metal Fabrication
Air Duct Cleaning
Commercial HVAC
Extended Warranties
Plumbing Services
Details
- Year established: 1947
Highlights and features
- 75+ years of HVAC experience serving Hanover and South Shore communities
- Licensed, insured, and background-checked technicians with advanced training
- 24/7 emergency service for urgent heating and cooling needs
- Comprehensive service agreements with priority response and discounts
- Free system evaluations and financing options available
What people say
Fast response time
Professional technicians
No extra charge surprises
24/7 emergency service
Clean workspaces
Services
HVAC Repair
Our licensed technicians provide fast, reliable HVAC repairs for all makes and models. We diagnose issues quickly and offer transparent pricing with 24/7 emergency service. Using state-of-the-art tools ensures efficient fixes that restore comfort and extend system lifespan.
New Installations
We specialize in precise HVAC system installations that optimize comfort and energy efficiency. Our experts consider climate, insulation, and home specifics to recommend properly sized equipment. Professional installation includes ductwork assessment and air quality improvements for lasting performance.
Preventive Maintenance
Regular maintenance extends HVAC system longevity and efficiency. Our comprehensive tune-ups include furnace, AC, and heat pump inspections. We clean components, check refrigerant levels, and test safety controls to prevent breakdowns and maintain optimal performance year-round.
Service Agreements
Our service agreements offer discounted rates, priority 24/7 service, and two annual tune-ups. Plans include labor warranties and 30% savings on repairs, ensuring cost-effective maintenance. Customers receive priority scheduling and reduced wait times for emergency HVAC needs.
Indoor Air Quality
We improve indoor air quality through filtration upgrades, UV lights, and ventilation systems. Our specialists address allergens, humidity control, and pollutant removal. Solutions include HEPA filters, dehumidifiers, and fresh air ventilators to create healthier living environments for allergy sufferers.
Questions
What HVAC services do you offer in Hanover, MA?
We provide complete HVAC services including repairs, installations, preventive maintenance, duct cleaning, and indoor air quality solutions for residential and commercial properties.
Do you offer emergency HVAC services?
Yes, we provide 24/7 emergency HVAC repair services with technicians available within 30 minutes of your call in the South Shore area.
Are financing options available?
Yes, we offer financing options for HVAC installations and major repairs to qualified customers.
What areas do you service?
We serve Hanover, Abington, Avon, Braintree, and all South Shore communities from Duxbury to Quincy.
Do you provide preventive maintenance plans?
Yes, our service agreements include twice-yearly tune-ups, discounted repairs, and priority emergency service for HVAC systems.
