Furnace Repair Services in Bryn Mawr, PA

It is not unusual for a Bryn Mawr house to be heated by more than one thing at once. A boiler serving radiators on the original floors, a furnace added for a renovated wing, a heat pump on a converted third floor, each installed in a different decade by a different company.

Davis Modern Heating & Cooling services the whole arrangement. We have been a family business since 1850, we work on every brand across gas, oil, propane, and electric, and we are used to sorting out what serves what before deciding what is actually wrong.

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Why Homeowners in Bryn Mawr, 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

Indicators Your Heating System Is Struggling

In a large house, heating problems can go unnoticed for a while. These are the ones to report.

One area never warming
Radiators cold in places
System pressure dropping
Furnace locking out
Noise from a circulator
Cold third floor rooms
Water near equipment
Fuel deliveries more frequent
Uneven zone performance
Any alarm or odor

Catching a problem in one system early keeps the others from being pushed to cover for it.

When One House Holds Several Heating Systems

Mixed systems create mixed failures. A house heated by a boiler on two floors and a furnace on a third will have completely unrelated problems in the same winter, and a technician who only works comfortably with one of those will find part of the answer. Knowing which system is responsible for which space is genuinely half the diagnosis here.

Scale is the other issue. Heat rises through open stairwells in a three story home, so the top floor can run warm while the first floor stays cool, or the reverse when the third floor system is undersized for a space that was finished later. These are distribution and zoning questions rather than equipment failures.

Age and fuel add the last layer. A number of these properties still run on heating oil, and older oil equipment needs consistent attention to nozzles, filters, and pumps to run cleanly. Neglect there shows up as sooting, short cycling, and eventually a no heat call on the coldest night of the year.

Service for Every System Under Your Roof

We service and repair furnaces, boilers, oil furnaces, heat pumps, thermostats, zone controls, ductwork, and ventilation, on every brand and every fuel source. In a multi system house we identify and label the equipment as part of the first visit, which makes every call after that faster for everyone.

Diagnostics cover what the system type requires. Forced air gets ignition, flame sensing, fuel pressure, blower performance, safety controls, venting, and heat exchanger inspection. Hydronic gets circulators, zone valves, pressure, expansion, air elimination, and burner performance.

Where a system has aged out, we scope replacement to the area it serves rather than proposing a project across the entire house. High efficiency equipment is available across all fuel types, and we bring more than thirty five years of experience with geothermal heat pumps and solar heating.

Third Floor Heat in the Bryn Mawr Historic District

Helen called from the Bryn Mawr Historic District in January because the third floor of her home had gone cold while the rest of the house was comfortable. The lower floors ran on a boiler and the top floor had its own furnace installed years later.

Our technician found that upper furnace locked out on a failed igniter, a filter that had gone unchanged long enough to restrict airflow, and a return partially blocked during a past renovation. We replaced the igniter, cleaned the burners and flame sensor, inspected the heat exchanger, corrected the return, and confirmed a full heating cycle.

The third floor came back up to temperature that afternoon. We suggested putting both systems on the same fall maintenance schedule, since in these homes the system used least is reliably the one that fails first.

What Bryn Mawr Households Count On

A few things tend to matter most to the households we work with here.

Family owned since 1850
Boilers, furnaces, and heat pumps
Multi system homes handled
24/7 on-call service
Licensed throughout Pennsylvania
All brands and fuels
Careful work in finished spaces
Relationships measured in decades

Our on-call team answers around the clock, which matters in a large home where a heating failure overnight can put pipes at risk as well as leave rooms cold.

Frequently Asked Questions

Can one company service a boiler and a furnace in the same house?

Yes. We work on both hydronic and forced air systems, so a house with both does not need two separate contractors.

Why does my third floor stay cold?

Either the system serving it is undersized for a space finished later, or airflow and returns were compromised during a renovation. Both are common in older large homes.

Do you offer overnight emergency service?

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

How often should oil equipment be serviced?

Annually at minimum. Nozzles, filters, and pumps need consistent attention for oil equipment to run cleanly and reliably.

Should all heating systems in a house be serviced together?

Yes. Servicing everything on one schedule keeps the least used system from being the one that fails during a cold snap.