- Home
- Service areas
Furnace Repair Across Unionville and Southern Chester County
Same winters, very different houses.
Unionville sits in the middle of a patchwork of boroughs, townships and old villages. An older twin in Kennett Square, a 1714 brick house on US 1 and a 1990s home in Birmingham all get the same January, but they fail in different ways. Pick your area for a guide to the homes, fuels and roads there.
- Free referral service, not a contractor
- Independent local HVAC companies
- No obligation
Which areas does this furnace referral line cover?
The line covers Unionville and East Marlborough Township plus the townships and boroughs around them in southern Chester County, and the Chadds Ford area that crosses into Delaware County. Independent HVAC companies that take the calls already drive these roads every winter.
The area is small on a map but varied on the ground. Kennett Square is a dense borough of about one square mile. Pennsbury and Kennett Township mix subdivisions from the last fifty years with farmsteads that predate the Revolution. West Marlborough and Newlin are open farm and horse country where oil and propane tanks are normal. Chadds Ford sits on the Brandywine, split between two counties.
Those differences matter for heating. They decide whether a home has a gas meter or a tank in the yard, whether the furnace sits in a stone cellar or a finished basement, and whether the chimney was built for coal or never existed. Each area guide below goes into those details, with facts drawn from census tables, township pages and National Register listings.
Pick your area
ZIP codes shown are the main ones for each area. Many township addresses use a neighboring town's post office, so check the township section below if your address seems to point somewhere else.
Unionville and East Marlborough
Historic village homes, farmhouses and subdivisions; oil, propane, gas and heat pumps side by side.
Area guide 19348Kennett Square
Compact borough of older detached homes and twins, with gas and oil both common.
Area guide 19348 · 19317 · 19357Kennett Township and Longwood
Fast-growing subdivisions, farms and the Hamorton crossroads near Longwood Gardens.
Area guide 19317Chadds Ford
Brandywine village of stone and brick landmarks, plus townhouses and newer gas-heated homes nearby.
Area guide 19317Pennsbury
Wooded lots and 1970s to 1980s homes, many all-electric or on oil, around historic farmsteads.
Area guide 19382Pocopson
Larger homes and farms along the Brandywine; oil, heat pumps, propane and some PECO gas.
Area guide 19380 · 19382 · 19383West Chester and Marshallton
County-seat borough homes and a historic village in West Bradford; gas where mains run.
Area guide 19320West Marlborough and Doe Run
Horse farms and small villages off Route 82; oil and propane, with long drives between homes.
Area guide 19320Newlin and Embreeville
Rural township on the Brandywine along Route 162; farmhouses with oil boilers and propane.
Area guideHeating at a glance by area
In the 2000 census, the Birmingham side of Chadds Ford was mostly gas, Kennett Square split between oil and gas, and Pennsbury leaned electric and oil. The western farm townships rely on oil and propane. Where a figure comes from the 2000 census, it is labeled; fuel mixes have shifted since.
| Area | Housing mix | Common fuels | Watch for |
|---|---|---|---|
| Unionville and East Marlborough | 1700s and 1800s village and farm homes, estates, newer subdivisions | Oil, propane, gas, heat pumps | Old chimneys, multiple systems, attic air handlers |
| Kennett Square | In 2000, 62% of homes were built before 1960; about 1 in 6 were attached | 2000 census: oil 47%, gas 34%, electric 16% | Old ducts, shared walls, oil-to-gas conversions |
| Kennett Township and Longwood | Housing units nearly doubled from 1,835 (1990) to 3,438 (2020) | Gas near US 1 and the borough; propane and heat pumps beyond | PVC vents, condensate lines, dual-fuel setups |
| Chadds Ford | Historic village core; Birmingham side mostly built 1980 to 2000 | Birmingham (Chester Co.) 2000: gas 60% | Flood-prone low spots near the creek, stone bank houses |
| Pennsbury | In 2000, 58% built 1970 to 1989; wooded lots | 2000 census: electric 40%, oil 35%, gas 14%, propane 11% | Aging heat pumps, electric strip heat, outages |
| Pocopson | Larger homes and farms near the Brandywine | Oil, heat pumps, propane, some PECO gas | Zoned systems, long duct runs |
| West Chester and Marshallton | Borough homes, a 65-building village historic district | Gas in the borough; mixed in the village | Steam and hot water systems, chimney venting |
| West Marlborough | Farms, estates, villages of Doe Run, London Grove and Upland | Oil and propane | Fuel run-outs, barns and outbuildings |
| Newlin and Embreeville | Farmhouses and a few small villages along Route 162 | Oil, propane, heat pumps | Older tanks and boilers |
Census figures are from Census 2000 DP-4 housing profiles and township and Wikipedia pages listed in the sources. The Census Bureau still publishes heating fuel by area in its American Community Survey, but those newer tables could not be retrieved for this page.
Pick by the kind of problem, not just the place
Your fuel and the symptom matter more than your ZIP code. An oil burner in Pennsbury and one in Newlin need the same kind of technician. Start with the guide that matches what your system is doing.
No heat right now
Safety steps, what to check, and when a no-heat call is truly urgent.
Emergency furnace repairThinking about a new system instead? See furnace replacement and the fuel comparison guide.
Not sure which area you're in?
In Pennsylvania, your mailing address often names a post office town, not the municipality you live in. Unionville, Chadds Ford, Hamorton and Embreeville are villages, not governments. The township or borough is what sets your permits, and it is often different from the town on your envelope.
Pennsylvania local government runs through boroughs and townships. A borough, like Kennett Square or West Chester, is a compact town with its own council. A township covers the land around and between boroughs. Villages are historic clusters of homes inside a township, with no separate government. Unionville, for example, is a village in East Marlborough Township.
Post office names cross those lines all the time. A few real examples from township offices themselves:
- Kennett Township's office on Burrows Run Road uses a Chadds Ford 19317 address.
- Pennsbury Township's office on Baltimore Pike also uses Chadds Ford 19317.
- Pocopson Township's office on Wawaset Road uses West Chester 19382.
- West Marlborough's office on Doe Run Road uses Coatesville 19320, as does Embreeville in Newlin.
- Marshallton is a village in West Bradford Township with a West Chester 19382 address.
- Chadds Ford Township is in Delaware County, but the Chadds Ford area also reaches into Pennsbury and Birmingham in Chester County.
For a heating call, give the company your street and the nearest main road. That tells them more than a ZIP code. If you need a permit for a replacement, your township or borough office is the place to ask.
Call and give your street and fuel. The free referral line will connect you with a company that serves it.
Service area questions
Do you cover my town if it isn't listed?
Possibly. The listed areas are where the area guides go deepest, but the independent companies on the line often serve neighboring townships too. Call with your street and fuel and you will be told whether a company covers it.
Why does my address say Chadds Ford when I live in Kennett Township?
Post office boundaries don't match township lines. Kennett Township's own office uses a Chadds Ford address. Your township is what matters for permits, and your street is what matters for a service call.
Is natural gas available everywhere in these areas?
No. PECO supplies gas in all of Delaware County and most of Chester County, but mains do not run down every rural road. Gas is common in Kennett Square and newer subdivisions; oil and propane are common on farms and wooded lots. It often varies street by street.
Does it take longer to get help in rural areas?
It can. Companies drive back roads like Route 82, Street Road and Route 162, and ice slows everyone down. Have your fuel type and symptom ready so the technician brings the right parts on the first trip.
Is this site a heating company?
No. UnionvillePAFurnaceRepair is a free referral service. It connects you with independent local HVAC companies, which set their own prices and terms. This site doesn't perform or guarantee any work and may be paid for referrals.
Sources
- Wikipedia: Unionville, Chester County, Pennsylvania (ZIP 19375, East Marlborough Township).
- Wikipedia: Kennett Square, Pennsylvania (ZIP 19348).
- Census 2000 DP-4 housing profile, Kennett Square borough (Pennsylvania State Data Center).
- Census 2000 DP-4 housing profile, Pennsbury Township.
- Census 2000 DP-4 housing profile, Birmingham Township, Chester County.
- 1990 census housing profile, Kennett Township and Kennett Township: About the Township (2020 housing units, office address).
- Wikipedia: Chadds Ford, Pennsylvania (ZIP 19317, townships the CDP spans).
- Pennsbury Township: Population and Demographics (office address).
- Pocopson Township (office address, West Chester 19382).
- Wikipedia: West Chester, Pennsylvania (ZIP codes) and Wikipedia: Marshallton (West Bradford Township, 19382, historic district).
- West Marlborough Township (office address) and Wikipedia: West Marlborough Township (villages).
- Wikipedia: Embreeville, Pennsylvania (Newlin Township, ZIP 19320).
- Wikipedia: PECO Energy Company (natural gas service territory).
Written by Lawrence. Updated October 25, 2026. Facts on this page were checked against the public sources listed above.
This is general information from a free referral service, not a heating contractor. For gas smells or carbon monoxide alarms, leave the house and call 911.
Related furnace help
Wherever you are near Unionville, one call gets you connected.
Tell the company your township or road, your fuel and what the furnace is doing. That is enough to route the call to someone who covers your area.
One call to (724) 241-4851 connects you with independent local HVAC companies that serve Unionville and nearby Chester County communities. It's free, with no obligation.
Have this ready when you call
- Your town or road
- Your fuel: oil, propane, gas or electric
- What the system is doing, and any blinking light code
- Whether you smell gas or oil (if so, leave and call 911 first)
Free referral service. Not a heating contractor. Companies are independent and set their own prices.