Suffolk County, Massachusetts
Heating and AC repair in Chelsea, MA
Call and describe the problem, whether the furnace will not light, the heat pump is iced over or the air conditioner is blowing warm air, and you will be connected with an independent HVAC contractor serving Chelsea.
Your call is connected to an independent HVAC contractor, subject to availability in your area. HVAC Nation may receive compensation when your call is connected with a participating provider. Providers are independent businesses.
Chelsea at a glance
Heating and cooling climate
NOAA's 1991–2020 climate normals for the BOSTON LOGAN INTL AP, MA station show about 5,545 heating degree days and 802 cooling degree days in a typical year, with about 92 nights at or below freezing and 14 days reaching 90°F or more. Heating demand is far larger than cooling demand here, so the furnace, boiler or heat pump carries most of the load and a breakdown in a cold snap is the most pressing kind of call.
How homes in Chelsea are heated
According to the Census Bureau's American Community Survey, 61% of occupied homes in Chelsea heat mainly with utility gas, 30% with electricity and 6% with fuel oil or kerosene. Gas-fired furnaces and boilers are the most common setup, which means igniters, flame sensors, gas valves and venting come up often on heating calls.
Housing age and HVAC systems
The median year built for housing in Chelsea is 1941, and about 69% of its 14,165 housing units were built before 1980. Many older homes here were built around hot-water or steam boilers and radiators, and some have had forced-air systems and central air added later, which can mean older ductwork and mixed equipment.
Services most relevant in Chelsea
- Furnace Repair (68% of homes heat with gas, propane or oil)
- Heat Pump Repair (30% of homes heat with electricity)
- Boiler Repair (median home built in 1941)
- AC Repair (about 14 days a year at 90°F or more)
- AC Replacement (median home built in 1941, many systems on their second or third AC)
- HVAC Repair (one call when you are not sure which part failed)
Owners, landlords and tenants
About 26% of occupied homes in Chelsea are owner-occupied and 74% are rented. Homeowners, landlords and property managers can call to be connected; tenants should contact their landlord or property manager about heating or cooling problems first.
Nearby places
Chelsea is in Suffolk County. Places within about 30 miles include Boston (4 mi), Cambridge (5 mi), Lowell (22 mi), Brockton (22 mi) and Lynn (6 mi).
Other Massachusetts locations
Malden (3 mi), Revere (3 mi), Somerville (4 mi), Peabody (10 mi), Salem (10 mi), Waltham (11 mi), Haverhill (27 mi), Attleboro (35 mi)
Questions
Is HVAC Nation an HVAC company in Chelsea?
No. HVAC Nation is a referral service. Calls from Chelsea are connected to an independent HVAC contractor, subject to availability in Suffolk County.
How do most homes in Chelsea heat?
Census survey data shows about 61% of homes heat mainly with utility gas, 30% with electricity, 2% with propane and 6% with fuel oil.
How cold and hot does it get around Chelsea?
NOAA normals for the BOSTON LOGAN INTL AP, MA station average about 92 nights a year at or below 32°F and 14 days at 90°F or above.
Is a permit needed to replace a furnace or air conditioner in Chelsea?
Many cities and counties require mechanical or electrical permits for equipment replacement. Check with the local building department for Chelsea or Suffolk County, and ask the contractor.
What should I do if I smell gas?
Leave the home right away without using switches or phones inside, then call the gas utility emergency line or 911 from outside.
Sources: U.S. Census Bureau Vintage 2024 population estimates; American Community Survey 2020–2024 5-year (tables B25040 house heating fuel, B25034, B25035, B25003); 2024 Gazetteer; NOAA NCEI U.S. Climate Normals 1991–2020 (heating and cooling degree days, base 65°F).