How much does a full HVAC system replacement cost in Silver Spring, MD?

The Maryland numbers, and two from Silver Spring

These are market figures, not ours. AskDoss's 2026 guide to HVAC installation cost in Maryland gives these installed prices for a complete system.

• $9,800 on average for a complete replacement
• $8,000 to $14,000 for an AC with a gas furnace, averaging $10,500
• $5,500 to $10,000 for an air-source heat pump, averaging $7,800
• $8,500 to $13,000 for dual fuel, meaning a heat pump with a gas furnace as backup

The guide also says heat pumps outsell furnace and AC pairs in Maryland by nearly 2 to 1.

ServiceMagic does have Silver Spring prices, but only for one piece of equipment at a time. Its AC installation average is $5,861, with a typical range of $4,122 to $6,766. Its heat pump installation average is $5,727, with a typical range of $3,753 to $6,566. Neither page shows a date or includes a furnace, so neither one is a full system price.

What Silver Spring houses add

A lot of the brick ramblers and Cape Cods in Four Corners, Forest Glen and over on the Wheaton side have their ducts in a crawl space. Left uninsulated under the floor, those ducts lose cooling in July and draw in damp air the rest of the year. New equipment can't make up for that, so sealing and insulating them can belong in the replacement.

Older houses in Woodside and Sligo Park Hills often have everything in the basement, the furnace, the AC coil and the main trunks together, with returns that were too small when the ducts went in. Replacing the system there usually means return work as well.

The type of system moves the total more than anything else, as the ranges above show. If the house has gas, you can keep a furnace as backup to a heat pump, and any work on the gas side still needs a WSSC Water licensed plumber or gasfitter. Silver Spring is unincorporated, so the mechanical permit comes from Montgomery County's Department of Permitting Services.

In the downtown condos, the job covers the equipment inside your unit, and we schedule it with the building's management.

How we quote it

It starts with a free walkthrough of the equipment, the ducts and the panel. You get a text beforehand confirming the date, time and address. The written estimate follows by text within 24 to 48 hours, with the price and a link to approve it.

The permit and hauling off the old equipment are on the estimate as their own lines, so they don't show up later as extras. We don't price by brand or tonnage, and since we're in no rebate program, nothing is subtracted for one.

If you bought the equipment yourself, we can install it, and it keeps its maker's warranty on the maker's terms. Our installation labor is warranted for 60 to 90 days, depending on the job, and we hold a Maryland contractor license. The HVAC replacement page explains the replacement visit.

Where these numbers come from

We looked for a full system price specific to Silver Spring and didn't find one, which is why the Maryland guide leads this page.

AskDoss, "How Much Does HVAC Installation Cost in Maryland in 2026" is from 2026. We took its average complete replacement, its installed ranges by system type and the heat pump sales ratio. ServiceMagic, central AC installation costs in Silver Spring, MD and ServiceMagic, heat pump installation costs in Silver Spring, MD show no date. We read them in October 2026 for the average and typical range of each kind of install in Silver Spring.

A HomeBlue page for Silver Spring priced heat pumps by tonnage and dated from 2022, so we didn't use it. How we quote comes from our own records.