Furnace Repair Services in Villanova, PA

Renovation has changed how a lot of Villanova homes are heated. A finished basement with radiant floor, a kitchen addition on its own hydronic zone, a primary bath with heated tile, and the original boiler still serving cast iron radiators upstairs. Each of those was added by somebody at some point, and together they make a heating system nobody designed as a whole.

Davis Modern Heating & Cooling services all of it. We have been family owned since 1850, we work on forced air and hydronic equipment across natural gas, propane, heating oil, and electric, and we service every brand.

Our Services

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Why Homeowners in Villanova, PA Trust Us

We have had a great experience with them for both AC service and our boiler. The service team is professional, knowledgeable, and kind. They also make a big effort to get your job taken care of as soon as possible.

Tom, Julian, and Collin did a fantastic job replacing my oil furnace with a natural gas one. This was a very involved oil to gas conversion and they did a fantastic job running the gas lines and installing the new water heater. They were very courteous and did a great job explaining everything. Fair pricing, I would highly recommend!

I've had to call Davis on several occasions with furnace issues. Each time it was fast responses pleasant & friendly technicians they were very informative & got my heater up & running fast. 5 stars from me.

Extremely happy with our experience. We scheduled a tune up thereafter and the technician Nick H professionally maintained our systems, gave us valuable recommendations, and personally rerouted some HVAC piping to help provide additional head clearance in our tight mechanical room without asking. Highly recommend all around.

Furnace was clicking but not igniting. Called Davis and they said they were backed up but would try to get to me. Half hour later they called and said a technician was on their way. Nick arrived and quickly diagnosed the problem. Am up and warming up! Great service! Would highly recommend

Heating Symptoms Worth Flagging Early

In a house with several heating zones, trouble can go unnoticed for weeks. These are worth flagging.

One zone never warming
Floor heat feeling cold
Boiler pressure dropping
Circulator noise increasing
Zone valve not opening
Furnace locking out
Water near equipment
Fuel use climbing
Thermostat unresponsive
Any alarm or odor

Anything involving water near a boiler or manifold is worth a same day call.

Radiant Zones and the Systems Behind Them

Radiant floor heat is comfortable and slow to respond, which is where most complaints begin. These zones are designed to hold a temperature rather than recover quickly, so a deep setback leaves a floor cold for hours after the call for heat returns. Homeowners assume a failure when the system is behaving exactly as intended.

The mechanical side has its own failure points. Manifold actuators stick, zone valves fail in a closed position, circulators seize, mixing valves drift out of adjustment, and any one of those leaves a single area cold while the rest of the house is perfectly comfortable. The boiler keeps firing and nothing sounds wrong.

Piecemeal installation is the underlying issue. When zones are added across different renovations, the controls frequently end up layered rather than integrated, with separate thermostats, separate pumps, and priorities that were never set to work together. Diagnosing these homes starts with mapping what actually controls what.

Heating Repair Across Hydronic and Forced Air

We repair and service boilers, furnaces, oil furnaces, heat pumps, radiant and baseboard hydronic systems, thermostats, zone controls, ductwork, and ventilation on every brand. Working across both hydronic and forced air matters in these homes, because most of them have both.

On hydronic equipment we check circulators, zone valves and actuators, system pressure, expansion, air elimination, mixing valves, aquastats, and burner performance. On forced air we check ignition and flame sensing, fuel pressure, blower performance, safety controls, venting, temperature rise, and the heat exchanger.

When something has reached the end of its life, we scope the replacement to the zone or system that needs it rather than proposing work across the house. Options are available across every fuel type, and we bring more than thirty five years of experience with geothermal heat pumps and solar heating.

A January Visit to a Villanova Home

Margaret called from Villanova in January because the radiant floor in her lower level had gone cold while the rest of the house held temperature normally.

Our technician traced it to a zone valve that had failed closed along with a circulator running but not moving water because of air trapped in that loop. We replaced the valve, purged the loop, checked system pressure and the expansion tank, and confirmed flow and floor temperature across the zone.

The floor was warm again by evening. We also labeled the manifold and the zone controls, which had never been marked, so the next time something goes wrong anyone looking at it knows what serves what.

The Standard We Hold in Villanova Homes

Here is the standard we bring into a home like yours.

Family owned since 1850
Radiant, hydronic, and forced air
All brands and fuels serviced
24/7 on-call technicians
Licensed throughout Pennsylvania
Careful work in finished spaces
Systems documented and labeled
Relationships measured in decades

Our on-call service runs around the clock, which matters in a large house where a failed zone overnight can put plumbing at risk as well as leave a room cold.

Frequently Asked Questions

Why does my heated floor take so long to warm up?

Radiant systems are designed to hold a steady temperature rather than recover quickly. Deep setbacks leave the floor cold for hours, so shallower schedules work much better.

Do you service radiant floor heating?

Yes. We repair radiant and baseboard hydronic systems along with boilers, furnaces, and heat pumps.

Is emergency heating service available?

Yes. We have technicians on call 24 hours a day, every day of the year.

Why is one zone cold when the boiler is running fine?

A failed zone valve, a stuck actuator, trapped air, or a circulator problem will all isolate a single zone while the rest of the system works normally.

Should every zone be serviced annually?

Yes. The zones used least are the ones that fail first, and servicing everything together avoids that.