Air Quality & Ventilation Services
Custom ductwork, ventilation, and air purification for homes and businesses. Built and installed by our own crew, with the ducts fabricated in our Fall River shop. Serving southeastern MA and Rhode Island.
Ductwork
Custom sheet metal fabricated in our own Fall River shop. New runs, replacements, and repairs for homes and commercial buildings. No waiting on a wholesaler.
Ventilation
Bath and kitchen exhaust, fresh-air systems, and ERV units that move stale air out and keep the building breathing right.
Air Purification
UV purifiers, HEPA filtration, and whole-home systems that cut allergens, mold, and the stuffiness older houses trap.
Our Air Quality & Ventilation Services
Why Choose Triangle?
In-House Electricians
Most HVAC installers sub out the panel work. That means two companies, two schedules, two invoices. Our own electricians handle the panel work. One company, one invoice.
Mass Save Participating Contractor
We know which systems qualify, what documentation the program requires, and where homeowners usually lose money by picking the wrong equipment tier. We confirm your eligibility before you spend a dollar.
55 Years. Not a Startup.
Rebate money brought a lot of new companies into this market. Triangle has been at 425 Pleasant Street in Fall River since 1970. When your compressor needs warranty service in 2030, we will still be here.
Four Trades, One Company
Getting a mini split and notice the water heater looks rough? Want a generator quote while we are there? Heating, cooling, plumbing, electrical, refrigeration. One call, one truck, one bill.
Ready to Get Started?
Whether you need an emergency repair, a new installation, or a second opinion, Triangle is here to help. One call handles it all.