At a glance
- ZIP code
- 02155
- Areas
- Medford, West Medford, Medford Hillside, Wellington, Medford Square, South Medford, Fulton Heights, Lawrence Estates
- County
- Middlesex County
- Services
- 5 heating services
Areas in ZIP 02155
Medford
City on the Mystic River, north of Somerville
Multi-family buildings. One boiler often serves two or three units. A failure affects several households, and the owner arranges repair.
West Medford
Neighborhood on the west side of Medford near the commuter rail
Large older homes. Big houses with long pipe runs make air and balancing problems more noticeable.
Medford Hillside
Neighborhood in south Medford near the Tufts campus
Shared systems. Units on one boiler may have separate zones. A failed zone valve or circulator affects only that unit.
Wellington
East Medford area around the Wellington station
Condensing boilers. Wall-hung condensing boilers need clean condensate drains and clear sidewall vents. Error codes are common clues.
Medford Square
Downtown Medford along the Mystic River
Shared boilers in mixed-use buildings. Buildings with shops below and apartments above often heat everything from one boiler. A failure affects every unit, so it is worth having service records and the boiler's make and model ready when you call.
South Medford
Neighborhood between Medford Square and the Somerville line
A century of settling. Floors and walls move over decades, and steam pipes that once sloped back to the boiler can sag. Trapped water then bangs when steam arrives. Re-pitching pipes is often the fix.
Fulton Heights
Hilltop neighborhood in north Medford near the Fells
Wind exposure. Hilltop homes take the full force of winter winds. Drafty older windows and walls make the boiler work harder and run longer on the coldest nights.
Lawrence Estates
Early 20th-century planned neighborhood in north Medford
Large homes, long piping runs. Big houses have long pipe runs to distant rooms. Air separation and balancing matter as much as the boiler for even heat.
Heating services in 02155
- Boiler Repair
Gas and oil boilers that will not fire, lock out, leak or lose pressure.
- Emergency No-Heat Repair
Boiler down on a freezing night. Restoring heat and protecting pipes.
- Steam Heating Repair
Banging pipes, cold radiators and low-water lockouts in older steam systems.
- Radiator & Baseboard Heat Repair
Cold zones, air in lines, leaking valves and failed zone valves in hot-water heat.
- Boiler Maintenance & Tune-Up
Cleaning, combustion testing and safety checks before the cold arrives.
What to expect when you call
- 1
Safety check
Gas or oil supply, venting and carbon monoxide are checked first.
- 2
Read the system
Error codes, pressure or water level and the startup sequence.
- 3
Test components
Ignition, flame sensing, controls, circulators and safety devices.
- 4
Repair
The failed part is replaced or cleaned.
Have this ready when you call
- Your street address and ZIP code in ZIP 02155
- What you are seeing, hearing or smelling, and when it started
- Which of these signs apply: no heat or hot water from the boiler; boiler starts and shuts off, or shows a lockout light
- Anything you have already shut off, reset or tried
- Photos of the problem area, taken before anything is moved or removed
- Whether anyone in the home is at risk, and the best times for a visit
A clear description helps the heating provider bring the right parts and equipment on the first visit.
Call (781) 794-7623ZIP 02155: common questions
Which areas are in ZIP 02155?
ZIP 02155 includes Medford, West Medford, Medford Hillside, Wellington, Medford Square, South Medford, Fulton Heights, Lawrence Estates in Middlesex County, Massachusetts.
What heating services can I get in 02155?
Boiler Repair, Emergency No-Heat Repair, Steam Heating Repair, Radiator & Baseboard Heat Repair, Boiler Maintenance & Tune-Up. One call connects you with an independent provider who serves this ZIP code.
My boiler vents out the side of the house. Could snow be the problem?
Yes. Drifting snow can block sidewall intake and exhaust pipes and shut the boiler down. Clear them carefully, then try one reset.
Why does only the top floor stay cold?
Steam takes longest to reach the farthest radiators. Undersized or failed main vents are a common cause.
Can I bleed radiators myself?
Yes, with a radiator key and a cup. If radiators need bleeding often, there may be a leak or air separation problem worth a service call.
My condo boiler shows an error code. Should I reset it?
Note the code and try one reset. If it returns, call. The code helps the technician bring the right part.
Can one boiler heat several apartments evenly?
Yes, when the piping is zoned and balanced. Uneven heat between units usually points to air in the lines, failed zone valves or poor balancing rather than the boiler itself.
Should a steam radiator hiss?
A brief hiss as air escapes the vent at the start of a cycle is normal. Constant hissing, spitting water or a vent that never closes means the vent should be replaced.
My boiler runs constantly on very cold nights. Is that a problem?
Long run times in extreme cold can be normal. If the house still cannot reach temperature, have the boiler's output, controls and the home's heat loss checked.
Can my original radiators work with a new high-efficiency boiler?
Often very well. Large cast-iron radiators can heat a room at lower water temperatures, which suits condensing boilers. A heat-loss check confirms it.
How often should Medford radiators be bled?
At the start of each heating season and whenever you hear gurgling or feel cold tops on radiators.
Do steam and hot-water boilers need different maintenance?
Yes. Steam boilers need water-level and low-water cutoff checks; hot-water boilers need pressure, expansion tank and relief valve checks.
