Furnace and AC replacement in Lovettsville.
Furnace and AC replacement in Lovettsville runs $8,898 to $23,000 installed. About half the homes in 20180 went up since 2000, many on their first pair.
- Your price range up front
- Sized to the house, not the old label
- Dedicated HVAC team
Get your new system priced
Winter outweighs summer here nearly five to one, so size the new pair for both.
At the NOAA co-op in Purcellville, the nearest long-record station, the year averages 4,942 heating degree days and 1,050 cooling degree days. Summers still bite: on July 28, 2023, mesonets across Western Loudoun measured heat indices above 110. The furnace gets sized to the winter heat loss and the air conditioner to the summer gain: two numbers, not one guess off old labels.
Across 20180 the Census counts 781 homes built in the 2000s and 503 in the 2010s, and the typical owner’s house dates from 2001; inside the town limits, 2007. Another 671 went up in the 1980s and 1990s, and most of those are on a second furnace and air conditioner, not always installed the same year. If the outdoor unit is from 2016 and the furnace from 1998, the job may be the furnace alone, $4,285 to $14,040.
Look in the closet before pricing anything. A furnace has a burner and a flue: a metal vent pipe, or two white plastic pipes out the wall. An air handler has neither, just a fan, a coil and electric heat strips, and then the outdoor unit is a heat pump, priced as a heat pump system at $8,499 to $21,650. The two run nearly even here: across the ZIP about 46 owner homes in 100 heat with propane and about 41 with electricity.
The oldest houses need the ducts checked first. In town 88 homes date from 1939 or earlier; across the ZIP, 268. Their ductwork usually came long after they were built, snaked through closets and an attic, so we measure the supply and return before choosing a size.
Lovettsville houses, by the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
Lovettsville
- Median home built2007 Census
- Built before 1980about 3 in 10 Census
- Built since 2000about 6 in 10 Census
- Most homes aresingle-family houses, about 8 in 10 Census
- Heated withelectricity, about 4 in 10 Census
- Rentedabout 1 in 10 Census
- A few homes still burn heating oil. We don’t work on oil burners, but a switch to a heat pump or a gas or propane furnace is ours to price.
- Electric heat here usually means a heat pump with backup strips, which is priced as a heat pump system, not a furnace and AC.
What a new furnace and AC costs in Lovettsville.
$8,898 to $23,000 installed for a furnace and air conditioner replaced together, 2 to 5 ton, from the same price book as our estimator. Where you land depends on the size of the house, the efficiency you pick, and what the ductwork and venting need.
- Furnace and AC together, installed$8,898 to $23,000
- Furnace alone, keeping your AC$4,285 to $14,040
- Heat pump system instead$8,499 to $21,650
The HVAC replacement estimator gives your house its own number. Then we measure, and the price is in writing before anything is ordered.
Two years of labor come with every install. Monthly plans are on our financing page.
When replacing both makes sense in Lovettsville.
A limb came down on the outdoor unit
On August 3, 2024, a storm blew down numerous trees along Milltown Road just south of town, and on February 16, 2025, a mesonet in Lovettsville clocked a 63 mph gust. After a storm, look for bent fins, a dented top or torn line insulation, and don’t run a damaged unit; call us and we’ll check it all. If it and the furnace are both near twenty, price the pair.
Your heat may not be a furnace
Where a lot of homes heat with electricity, the indoor half is often an air handler, and the like-for-like swap is a heat pump system, $8,499 to $21,650 installed.
Both halves went in with the house
Plenty of houses built since 2000 still run the builder’s furnace and AC. They wear out on about the same schedule, so when one goes, price the pair.
How to pick who replaces your furnace and AC in Lovettsville.
Ask every company that quotes the job, us included.
Did they write down the age of both units?
The rating plates on the furnace and the outdoor unit carry the dates. If one half is five years old, a quote for the pair is more than you need.
Do they size it to the house, or copy the old label?
The old size is a guess somebody made years ago. Ask whether they measure the house and check the ductwork first. Too big short cycles; too small runs all afternoon in August.
Is the whole job in the written price?
Furnace, outdoor unit, matching coil, refrigerant lines, thermostat, permit and hauling the old one away. If it isn’t on the paper, ask.
Already holding another company’s quote?
Our free second opinion looks at the system you were quoted on and tells you what it actually needs, with our price if you want it.
What our customers say.
Very professional HVAC installation, knowledgeable technicians, clean work,respectful of property, punctual, conscientious.
5.0 stars across 884 Google reviews. Read them on our reviews page.
Furnace and AC replacement questions from Lovettsville.
Who signs off on a new system in Lovettsville?
Loudoun County’s Department of Building and Development, in town or out; the Town of Lovettsville handles zoning and leaves building permits to the County. A new propane furnace needs that County permit even in the old one’s spot, and since October 1, 2025 the County skips plan review when the BTUs and the location stay the same.
Our 1990s house has two systems. Do both need replacing?
Price them one at a time. About 94 homes in 100 across 20180 are detached, and the bigger ones often have one system for the main floors and another for the bedrooms, each with its own furnace and outdoor unit, often replaced years apart. The HVAC replacement estimator prices each.
How much does a new furnace and AC cost in Lovettsville?
$8,898 to $23,000 installed for the pair, by size and efficiency. A furnace alone, keeping your AC, is $4,285 to $14,040. The HVAC replacement estimator gives your house its own number.
Do I have to replace both at the same time?
No. If the AC is young and only the furnace failed, replace the furnace. If they’re the same age, do both: a new outdoor unit needs a matched coil, and one built for the old refrigerant isn’t rated for the new one.
More from SwiftPro in Lovettsville.
More from SwiftPro in Lovettsville
Start with your number, then a written quote.
Call, book online, or take the HVAC replacement estimator first. We measure before we quote, and if a repair makes more sense than a new system, you’ll hear that first.
SwiftPro Heating, Cooling & Plumbing is a licensed, BBB Accredited (A rating), independently owned heating, cooling and plumbing company in Chantilly, serving Lovettsville and the rest of Northern Virginia. Virginia contractor license #2705192276. 5.0 stars across 884 Google reviews. SwiftPro maintains a dedicated HVAC team and a dedicated plumbing team.
SwiftPro Heating, Cooling & Plumbing, 4230 Lafayette Center Dr, Suite N, Chantilly, VA 20151, (703) 997-9757. Book online, read our reviews, or see every town we serve.