CDP · Bucks County
Heating & Air Conditioning in Milford Square, PA
About 10-12 minutes southwest via PA-663

Milford Square was called Heistville once, after the Heist family who ran a mill on Unami Creek. Today it is a small village on PA-663 southwest of Quakertown, home to 1,137 people in under a square mile, part of the Quakertown Community School District, and using Quakertown's 18951 ZIP for many addresses (others are 18935).
It is not a borough, just a cluster of older village streets with farms and newer homes around it. That mix is the point for us: one block can have a gas meter while the next house down the road has a propane tank or an oil fill pipe.
We usually reach the village in 10 to 12 minutes via PA-663, though that depends on traffic and weather, and we tell you plainly what to expect when you call.
- Type
- Census-designated place in Milford Township, Bucks County (unincorporated)
- Population (2020 Census)
- 1,137 in 0.92 sq mi
- From our Quakertown shop
- About 10-12 minutes southwest via PA-663 (varies with traffic and weather)
- Local history
- Formerly Heistville, named for the Heist family mill; on Unami Creek
- Heating context
- UGI gas serves Milford Township but only along certain roads; propane and oil are common elsewhere

Housing & HVAC Considerations in Milford Square
A mill village like this tends to have older frame and stone houses on the main roads, with later houses and farm properties spread out beyond. Older homes of that type often carry decades of heating changes, so the first thing we do is trace what feeds the system: gas, propane or oil.
UGI serves Milford Township, but gas mains follow specific roads. Where there is no main, propane and oil furnaces and boilers need closer attention than an in-town gas system: an annual tune-up, tank levels watched so the house does not run dry in January, and a look for soot, poor combustion or a tired heat exchanger.
Houses near a creek bottom can have damp basements, which is hard on cabinet furnaces, oil tanks and anything electrical sitting on the floor. Older oil equipment can also develop venting or heat exchanger problems slowly, so a carbon monoxide check is worth doing on any rural house you are buying or have never had serviced.

What We Check on a Service Call in Milford Square
When a furnace runs long cycles without warming the house, we check the heat exchanger, the burners or nozzle, the filter, airflow and the thermostat. On propane and oil units, a worn exchanger or dirty combustion can also show up first as a higher fuel bill.
For a carbon monoxide inspection we test at the flue and around the equipment, look over the chimney or vent connection, and check the heat exchanger and draft. We tell you what we found and whether anything needs attention before winter.
If you are weighing propane against oil or a heat pump, we look at the equipment you have, the electrical service, and whether UGI has a main on your road, then give a written estimate for each practical option.

Services We Provide in Milford Square
Why Milford Square Residents Choose HVAC Quakertown PA
- 18+ years working on propane- and oil-heated homes in the Milford Township countryside
- Nozzle, filter and combustion service on oil equipment, plus propane furnace repair
- Carbon monoxide and flue checks suited to older rural heating equipment
- Priority dispatch for no-heat calls, with an honest drive-time estimate
- Written estimates and a 100% satisfaction guarantee on every Milford Square job
Frequently Asked Questions
Nearby Service Areas
Milford Township
About 8 minutes south via PA-309, near the Quakertown turnpike interchange
View service areaSpinnerstown
About 8-10 minutes west via PA-663
View service areaRichlandtown
About 6 minutes northeast on PA-212
View service areaTrumbauersville
About 7-10 minutes southwest of Quakertown
View service areaEast Greenville
About 18-20 minutes northwest via PA-663
View service areaNeed HVAC Service in Milford Square?
Call HVAC Quakertown PA at (327) 210-5999 — 110 Penn Am Dr, Quakertown, PA 18951.