Heating & HVAC Repair in Elizabeth, NJBoilers, Furnaces & Multi-Family Buildings
Furnace, boiler and AC repair across Elizabeth, NJ (07201, 07202, 07206, 07208), from our Union office on Morris Avenue. Two-family homes and apartment boilers. 24/7: (908) 249-9701.
Heating repair in Elizabeth: boilers, furnaces and multi-family buildings
Dimatic Control is a licensed New Jersey HVACR contractor (license #19HC00310800) based at 1992 Morris Avenue in Union, and Morris Avenue runs from our office straight into Elizabeth. We cover all four Elizabeth ZIP codes, 07201, 07202, 07206 and 07208. Elizabeth heats differently from the suburbs around it: about half of the city's housing was built before 1960, and fewer than 1 home in 5 is a detached single-family house. Most Elizabeth homes are in a two-family house, a walk-up or an apartment building, which usually means a gas boiler, or one furnace per apartment.
| Heating fuel | Homes | Share |
|---|---|---|
| Natural gas from the utility | 39,209 | 86% |
| Electricity (heat pumps, baseboard) | 4,915 | 11% |
| Propane or tank gas | 516 | 1% |
| Heating oil | 509 | 1% |
How Elizabeth's 45,767 occupied homes heat, from the Census Bureau's 2024 American Community Survey. The median Elizabeth building dates from 1959 and 12,712 homes (26%) are in buildings from 1939 or earlier. Two-family houses are the city's most common home: 15,030 of 48,518 (31%), against 8,053 detached single-family houses (17%).
Gas boiler repair: steam and hot water
Elizabeth's pre-war two-family houses and walk-ups are boiler country. One boiler often heats several apartments through radiators or baseboard, so when it fails every tenant in the building calls at once.
- One apartment or floor cold while the rest of the building heats
- Radiators banging or hissing on a steam system
- Boiler shutting down on low water
- Pressure climbing or the relief valve dripping on a hot-water boiler
- Circulator pump, zone valve or aquastat failure
Gas furnace repair, one apartment at a time
In two-family houses that were converted to forced air, each floor often has its own gas furnace and its own thermostat. We fix the one that failed and can check the other one on the same visit.
- Burners won't light: a worn igniter or a dirty flame sensor
- Furnace starts, runs a few minutes and shuts off
- Blower running but the air is cold
- High-efficiency furnace locked out by a blocked vent pipe or condensate drain
- A flash code that comes back after every reset
Heat pumps, electric heat and commercial buildings
About 11% of Elizabeth homes heat with electricity: heat pumps, electric furnaces or baseboard. We also service the rooftop units and heating systems in Elizabeth's shops, offices and warehouses.
- Heat pump running constantly without warming the apartment
- Outdoor unit iced over and not defrosting
- Electric baseboard or electric furnace not heating
- Rooftop unit or warehouse heater down at a business
No heat in Elizabeth tonight? Check these first
- Right thermostat: in a two-family house, make sure you are adjusting your own floor's thermostat, set to Heat a few degrees above the room temperature. Blank screen: change the batteries.
- Renting in a building with three or more apartments: from October 1 to May 15 the owner must keep the heat working, so tell the landlord or the super first.
- Power: the furnace or boiler service switch (it looks like a light switch, usually at the basement stairs or on the unit) is on, and the breaker has not tripped.
- Filter: a clogged furnace filter can overheat the furnace until a safety switch shuts it off. Replace it and try again.
- High-efficiency furnace or boiler: the white plastic vent pipes outside must be clear of snow, ice and leaves.
- Boiler: a hot-water boiler gauge usually reads about 12 to 15 psi when cold, and a steam boiler should show water in the glass sight tube. If it is low, call us. Never add water to a hot steam boiler.
- Smell gas? Leave the building, do not flip switches, and call 911 or Elizabethtown Gas from outside.
- Carbon monoxide alarm going off? Get everyone out and call 911 before calling us.
Repair or replace: what decides it in an older building
- Age is a guide, not a verdict. A well-kept boiler in a 1920s two-family can outlast a neglected furnace half its age. How long furnaces last in New Jersey
- A cracked furnace heat exchanger means replacement, because it can put carbon monoxide into the apartment. Furnace carbon monoxide safety
- The same failure coming back every winter usually costs more than it saves to keep fixing, and in a rental it costs tenant goodwill too.
- Parts for older boilers and furnaces can be discontinued, which turns a small repair into a long wait with no heat.
- Elizabethtown Gas, the gas utility serving Elizabeth, pays rebates when a high-efficiency gas boiler or a 95% AFUE gas furnace replaces a non-condensing one, for equipment bought and installed through June 30, 2027. Ask us which ones fit your building. Financing and rebates
- Venting: replacing an old chimney-vented boiler with a high-efficiency one changes the venting, and a water heater left alone in the old chimney may need a liner. Chimney and venting
Heating questions Elizabeth owners and tenants ask
Do you work on two-family houses where each floor has its own heat?
Yes. Two-family houses are Elizabeth's most common home, about 31% of the city's housing. Whether the building runs one boiler for both floors or a separate furnace for each apartment, we repair and replace both, and we can service both units on the same visit. Boiler service
I own a building in Elizabeth. What temperature do I have to keep?
In a building with three or more apartments, New Jersey's rule for multiple dwellings (N.J.A.C. 5:10-14.4) requires at least 68°F in habitable rooms from 6 a.m. to 11 p.m. and 65°F from 11 p.m. to 6 a.m., from October 1 through May 15. The owner has to keep the heating system working whatever the lease says, and supplies the fuel unless a tenant whose apartment has its own separately metered heating has agreed in writing to pay for it. If the boiler is struggling to hold those numbers now, get it looked at before the first cold week.
Can someone come tonight if we have no heat?
Yes. Dimatic runs 24/7 emergency heating service, and Elizabeth is a short drive down Morris Avenue from our Union office. Call (908) 249-9701 and tell us whether you have a boiler, a furnace or a heat pump, and what the thermostat or boiler gauge shows. No-heat emergency in Elizabeth
Do you service apartment buildings and businesses?
Yes. We work on multi-family boilers, rooftop units and heating for shops, offices, restaurants and warehouses across Elizabeth, from Midtown to the port district. Commercial HVAC
Which parts of Elizabeth do you cover?
All of it, in all four ZIP codes (07201, 07202, 07206, 07208): Elmora, Midtown, Peterstown, North Elizabeth, Westminster, Bayway, Frog Hollow and Elizabethport, plus the neighboring towns listed below.
What does a heating repair cost?
It depends on the system and the part, so we don't list prices online. Call (908) 249-9701 to book a repair visit or a free estimate on a replacement.
Heating service near Elizabeth
Sources
- U.S. Census Bureau, American Community Survey 2024, house heating fuel, Elizabeth city (via Census Reporter)
- U.S. Census Bureau, American Community Survey 2024, year structure built, Elizabeth city (via Census Reporter)
- U.S. Census Bureau, American Community Survey 2024, units in structure, Elizabeth city (via Census Reporter)
- N.J.A.C. 5:10-14.4, Minimum temperature (multiple dwellings)
- Elizabethtown Gas, Residential HVAC and Water Heating Rebate Program application
HVAC Services in Elizabeth
Complete heating, cooling, and ventilation services for Elizabeth homes and businesses.
Heating Repair
24/7 heating repair and emergency service
Air Conditioning Repair
Fast AC repair and cooling system service
HVAC Installation
Professional HVAC system installation and replacement
Preventive Maintenance
Annual HVAC maintenance and tune-ups
24/7 Emergency Service
Emergency HVAC repair available 24/7
Furnace Installation
Professional furnace installation and replacement
Heat Pump Installation
Heat pump installation and setup
Heat Pump Repair
Heat pump repair and troubleshooting
AC Installation
Professional AC installation and replacement
Ductless Mini-Split Systems
Mini-split installation and service
Thermostat Installation
Thermostat installation and setup
Smart Thermostat Installation
Smart thermostat setup and configuration
Ductwork Installation
Ductwork installation and repair
Indoor Air Quality
Indoor air quality improvement
Humidity Control
Humidity control systems
Commercial HVAC
Commercial HVAC services
Commercial Refrigeration
Commercial refrigeration repair and service
Zoning Systems
Zoning system installation
Energy Audit
HVAC energy efficiency audit
Ventilation Services
Ventilation system installation and repair
Radiant Floor Heating
Radiant floor heating systems
HVAC Services Throughout Elizabeth, NJ
Dimatic Control proudly serves all neighborhoods and areas in Elizabeth. From local businesses to residential homes near popular landmarks, we're your trusted HVAC partner.
Local Landmarks We Serve
Our technicians know Elizabeth inside and out. We provide HVAC services near:
Neighborhoods We Service
Fast response times to all Elizabeth neighborhoods including:
HVAC Expertise in Elizabeth, NJ
Local Insights
Elizabeth is the Union County seat and one of New Jersey's largest cities, and it sits right next door to Dimatic Control's Union office: Morris Avenue runs from our door into the city. We cover all four ZIP codes, 07201, 07202, 07206 and 07208, from Elmora and Westminster to Midtown, Peterstown, Bayway and Elizabethport. The city's 45,767 occupied homes are mostly in two-family houses, walk-ups and apartment buildings, alongside shops, restaurants and the warehouses around the port.
Climate Considerations
Elizabeth gets hot, humid summers and cold winters, so buildings here run air conditioning through the summer and heat from October into spring. In multi-family buildings the heating season is also a legal one: New Jersey requires owners of buildings with three or more apartments to keep habitable rooms at 68°F by day and 65°F overnight from October 1 to May 15. Snow and ice can block the plastic vent pipes of high-efficiency furnaces and boilers and shut them down.
Building Types We Serve
Half of Elizabeth's housing (51%) was built before 1960 and a quarter (26%) before 1940, according to the Census Bureau's 2024 American Community Survey; the median building dates from 1959. Two-family houses are the most common home at 31%, buildings of three or more apartments make up 47%, and detached single-family houses only 17%. About 86% of occupied homes heat with natural gas and 11% with electricity. In practice that means gas boilers with radiators or baseboard in many older buildings, often a furnace per apartment in two-families converted to forced air, and heat pumps or electric heat elsewhere.
Seasonal Tips
Run the heat for a test before the first cold night, not during it. Change furnace filters, clear the outdoor vent pipes, and check the pressure gauge or sight glass on a boiler. Owners of multi-family buildings should have the boiler serviced before October 1, when the 68°F rule starts. Test the carbon monoxide alarms near bedrooms and the boiler or furnace. In spring, have the AC checked before the first heat wave.
Your Trusted Elizabeth HVAC Experts
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Available around the clock for urgent repairs
Local Experts
Multi-Family Buildings, Commercial HVAC, Emergency Service
Service Area
20-mile radius
Also Serving Nearby Areas
We provide HVAC services throughout Union County and surrounding communities
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