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Heating & Cooling in Stillwater, MN

Central Minnesota Heating and Cooling repairs and replaces furnaces, ACs, heat pumps and boilers in Stillwater (Washington County), about 23 miles from downtown Minneapolis.

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HVAC service in Stillwater, MN

Stillwater's North Hill and South Hill are lined with houses from the 1800s lumber boom, while newer neighborhoods such as Croixwood and Liberty on the Lake fill in the rest of the city.

County
Washington County
ZIP code
55082
Natural gas
Xcel Energy
Electric
Xcel Energy
From downtown Minneapolis
about 23 miles

Updated October 21, 2026 · By , owner, Central Minnesota Heating and Cooling

Map of Stillwater, MNOpen in Google Maps

What heating systems do Stillwater homes have?

Stillwater boomed with the lumber trade from the 1840s to about 1890, and the hills above downtown still hold many houses from that era: tall frame and brick homes on stone foundations, heated by hot-water or steam radiators or by gravity furnaces that were later refitted with blowers and forced-air ducts. Downtown has older commercial buildings turned into lofts and condos. Croixwood brought more conventional suburban layouts, and the west side, annexed from 1996 on, filled with two-stories whose builder equipment is now aging out.

Xcel Energy provides natural gas and electricity throughout Stillwater.

Technician with a flashlight checking the circuit breaker panel in a home's garage

What HVAC work do we do most in Stillwater?

  • Boiler replacements and radiator repairs in 1800s homes on the North and South Hills
  • Small-duct high-velocity or ductless cooling for plaster-walled houses that can't take full-size ducts
  • Chimney liner and combustion-air corrections found when old flues are inspected during a furnace swap
  • Builder-grade furnace and AC replacements in the west-side subdivisions

Around town: Stillwater Lift Bridge · St. Croix River · Historic Washington County Courthouse · Stillwater Commercial Historic District · St. Croix Crossing. Neighborhoods: North Hill · South Hill · Croixwood · Liberty on the Lake

Book in Stillwater

What are Stillwater homes like to heat and cool?

Stillwater's housing reads like a timeline climbing out of the river valley. The North and South Hill houses from the lumber decades are often balloon-framed, with wall cavities that run from basement to attic, stone foundations, and basements never meant to hold a furnace and its ductwork. After World War II, better roads put Stillwater within commuting range of the Twin Cities, and newer houses began filling the edges of the old town.

The first planned subdivisions came in the 1970s west of downtown, led by Croixwood, laid out along the east side of Long Lake with winding streets and lots of a quarter acre or more. Houses there have ordinary basements and ductwork, and most are on their second or third furnace. Annexation from 1996 on added the city's youngest neighborhoods on the west side. So a furnace or boiler question in Stillwater starts with which of those three eras the house belongs to.

What goes wrong with heating in Stillwater in winter?

The St. Croix valley holds cold air on still winter nights, and downtown and the lower streets can sit colder than the hilltops. The old houses feel it most. Balloon-framed walls without fire blocking let cold air move from basement to attic, and radiators under tall windows fight a constant downdraft. Chimneys on these houses are tall and exposed, which helps them draft but lets the masonry deteriorate where flue gas condenses inside. A liner inspection belongs in any boiler or furnace swap.

Furnace repair in Stillwater

What goes wrong with cooling in Stillwater in summer?

Summer humidity along the St. Croix can be heavy, and the valley traps it on still evenings. The old houses on the hills get cooled in pieces: window units, ductless heads, or a small-duct system in the attic serving the top floor. Croixwood's 1970s houses usually have ductwork that can carry central air, though the original returns tend to be small for modern equipment. In the newer west-side homes, the question is mostly whether a builder-grade AC was sized right in the first place.

AC repair in Stillwater

Which utilities and rebates apply in Stillwater?

Stillwater homes buy gas and electricity from Xcel Energy, which keeps the rebate picture simple. On the North and South Hills, the Xcel rebate that matters most is the one for high-efficiency gas boilers; on the west side it's usually a furnace, central AC or heat pump. Mini-split and cold-climate mini-split heat pumps, a common way to cool radiator homes, have their own Xcel rebates. Some Xcel rebates require a registered contractor, so ask before you choose equipment.

Rebate programs change every year; check the utility's current terms before you buy. Our guides: Xcel and CenterPoint rebates, heat pump rebates, what happened to the federal credits.

Most-requested in Stillwater

Furnace repair in Stillwater On the North and South Hills many furnaces vent into old masonry chimneys, so draft is an early question. Furnace replacement in Stillwater Furnace replacement in Stillwater costs $4,500–$9,500 installed, written flat-rate, for 1800s hill houses and newer Croixwood homes. AC repair in Stillwater Humid St. Croix air keeps drain pans full, so clogged condensate lines are a common cause of shutdowns. AC replacement in Stillwater Central AC replacement in Stillwater runs $5,200–$9,800 installed with us, quoted flat-rate in writing after a Manual J. Heat pumps in Stillwater A heat pump installed in Stillwater runs about $7,500–$14,500 with a written flat-rate quote, best in ducted Croixwood homes on Xcel gas. Mini-splits in Stillwater A ductless mini-split in Stillwater runs $4,200–$12,500 installed. Boiler service in Stillwater Stillwater boiler calls cover hot-water and steam radiator systems, from trapped air to pressure and expansion-tank problems. Tune-ups in Stillwater Stillwater homeowners pay $129 to tune up one furnace or one AC, or $219 to do both in the same visit.

More HVAC services we offer

Furnace Heating Air Conditioning Air Quality Whole-Home Humidifiers Whole-Home Dehumidifiers Air Purification HRV / ERV Ventilation Smart Thermostats Commercial HVAC

Stillwater HVAC questions

Who repairs furnaces and air conditioners in Stillwater, MN?

Central Minnesota Heating and Cooling, owned by Eric Brown and in business since 2009, serves Stillwater and nearby towns in Washington County, about 23 miles from downtown Minneapolis. We're open 7 days, 7am–9pm, and no-heat calls get priority. Call 612-429-3465.

How much does an HVAC service call cost in Stillwater?

An HVAC service call in Stillwater is a flat $79 trip charge, waived when you approve the repair. You get a written price before any work. Installed prices are on our pricing page.

Can you put central air in a North Hill house without wrecking the plaster?

Usually, yes. Small-duct high-velocity systems run flexible two-inch tubing through closets, attic space and floor cavities to small round outlets, so the plaster stays mostly intact. Ductless mini-splits are the other route when only a few rooms need cooling. In three-story houses we often put an air handler in the attic for the upper floors and treat the main floor separately.

Does my historic Stillwater house need approval for a new vent or condenser?

A new vent or condenser on a designated Stillwater property can need review by the city's Heritage Preservation Commission before work starts. A high-efficiency furnace or boiler needs PVC pipes through an exterior wall, and a condenser needs a pad and clearance. Many condensing boilers can instead vent up the old chimney with a manufacturer-approved liner kit, which keeps new pipes off the walls. If your house is designated, we check with the city before scheduling.

Our Croixwood house has small original returns. Will a new furnace be louder?

Louder, yes, if the returns stay as they are. A modern blower moves more air than the returns of a 1970s house were sized for, and that restriction shows up as rushing air at the grilles. Croixwood ducts usually carry central air well, so the usual fix is adding return capacity during the replacement. We measure static pressure before sizing so the quote includes it.

Can our Stillwater boiler heat a new addition?

Usually, if it has spare capacity. A new zone with its own circulator or zone valve and thermostat can feed panel radiators, baseboard or radiant floor tubing in the addition. We run a heat-loss calculation on the whole house to confirm the boiler can carry it; old boilers are often oversized, so there's room. Cooling the addition is a separate question, and a ductless head is the usual answer.

Also serving near Stillwater

Guides for Stillwater homeowners

Brands we service in Stillwater: Carrier · Trane · Lennox · Goodman · Rheem · Mitsubishi Electric · Daikin · American Standard · Navien · Weil-McLain · and every other major brand

Contact Us

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