Furnace Repair Services in Newtown Square, PA
- Locally Owned & Operated
- Trust & Transparency
- Long-Term Relationships
In a lot of the newer homes across Newtown Square, the furnace serving the upper floors does not live in the basement. It sits in the attic, in a garage ceiling, or in a mechanical closet against an outside wall, and in January that means heating equipment operating in temperatures close to outdoor conditions.
Davis Modern Heating & Cooling repairs furnaces throughout Newtown Township and the surrounding Delaware County communities. We have been family owned since 1850, we service every brand, and we work across natural gas, propane, heating oil, and electric equipment.
Our Services
- Boiler Installation & Replacement
- Boiler Maintenance
- Boiler Repair
- Furnace Installation & Replacement
- Furnace Maintenance
- Furnace Repair
- Geothermal Heat Pump Installation & Repair
- Heat Pump Installation & Replacement
- Heat Pump Maintenance
- Heat Pump Repair
- Oil Furnace Repair & Maintenance
- Convert From Oil Heat
- Radiant Floor Heating Installation & Repair
- Tankless Water Heater Installation & Repair
- Water Heater Repair
- Water Heater Replacement & Installation
Contact Us
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What to Watch for Before Winter Sets In
Before winter settles in, these are the things worth catching.
- Upper floors slow to heat
- Furnace failing to start
- Water stains near equipment
- Cold air from upstairs vents
- Condensate line dripping
- System locking out overnight
- Noise from the attic
- Fuel use climbing
- Uneven floor to floor temperatures
- Alarm or odor present
Water stains on a ceiling below attic equipment should never be left for later.
Equipment Living in Unconditioned Space
High efficiency furnaces produce condensate, and equipment in an attic or garage has to drain it through space that gets genuinely cold. A line that freezes backs water up into the furnace, the safety switch shuts the system down, and the house loses heat on the coldest night of the year, which is exactly when the freeze happened in the first place.
Duct loss compounds it. Supply runs through an unconditioned attic give up heat along the entire length, so the air arriving at a bedroom register can be considerably cooler than what left the furnace. Insulation on those runs settles and separates over time, and nobody looks at it until rooms stop heating properly.
Access is the last piece. Equipment installed in a tight attic or above a garage is harder to service, which means it gets serviced less, which means filters go unchanged and small problems go unnoticed. The furnace in the least convenient location is reliably the one that fails first.
Our Winter Repair Work
Our winter work covers furnaces, boilers, heat pumps, dual fuel systems, thermostats, ductwork, and ventilation on every brand and fuel source. Attic and garage installations get particular attention on drainage, freeze protection, and duct condition, because those are where the expensive failures start.
A heating call includes ignition and flame sensing, fuel pressure, blower performance, safety controls, venting, temperature rise, and heat exchanger inspection. On elevated equipment we also verify the condensate path, secondary pan, and float switch, since a failure there reaches finished ceilings quickly.
When a system is finished, we explain what replacement involves in that location and lay out options across all fuel types. We also bring more than thirty five years of experience with geothermal heat pumps and solar heating.
Cold Air in Liseter
Dana called from Liseter on a cold morning because the upstairs of her home had no heat while the first floor was comfortable. The upper system had shut down sometime overnight.
Our technician found the condensate drain from the attic furnace frozen where it passed through an uninsulated section, water standing in the pan, and the float switch holding the system off. We thawed and cleared the line, insulated the exposed run, tested the switch and secondary pan, cleaned the burners, and confirmed a full heating cycle.
Heat returned upstairs that morning and the ceiling below stayed dry. The freeze was the immediate cause and the uninsulated run was the reason it happened, so we corrected both rather than just the symptom.
Our Approach in Newtown Square
Here is how we work in homes around here.
- Family owned since 1850
- Attic and garage installations
- Condensate and freeze protection
- 24/7 on-call technicians
- Licensed in Pennsylvania
- All brands and fuels serviced
- Honest repair or replace guidance
- Thirty five years with geothermal
Our on-call service operates day and night, which counts for a great deal when equipment above a finished ceiling stops working at two in the morning.
Frequently Asked Questions
Why did my upstairs furnace shut down overnight?
A frozen or blocked condensate line is a frequent cause on attic equipment. The safety switch stops the system to prevent an overflow.
Can attic ductwork be losing my heat?
Yes. Supply runs through unconditioned attics give up heat along their length, and settled or separated insulation makes it worse.
Do you offer emergency heating repair?
Yes. Our technicians are on call 24 hours a day, seven days a week.
How do I protect an attic furnace from causing a leak?
A clear condensate drain, an intact secondary pan, and a working float switch. We check all three during service.
Do you service heat pumps and dual fuel systems?
Yes, on all brands, including verifying the changeover settings on dual fuel equipment.