Your local Lake Oswego HVAC Service team

HVAC Service in Lake Oswego Done Right the First Time

When your furnace quits on a 28-degree night or your AC stops cooling in July, you need HVAC Service in Lake Oswego that shows up fast and fixes it right. We run service calls through Lake Oswego North, Lake Oswego South and Lake Oswego East every week, from lakefront homes needing humidity control to older ranches near George Rogers Park. Our techs carry manifold gauges, leak detectors and the parts to get your system running the same day.

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3Years serving Lake Oswego

24/7Emergency availability

4.9Average rating

Licensed · Upfront options · Clean work areas · Written guarantees

Your Local HVAC Service in Lake Oswego

ThermexaPro has been running HVAC Service in Lake Oswego since 2023, and in three years we have learned exactly how this town's systems fail. Lakefront homes along the lake pull heavy humidity through their ductwork, so we install and service dehumidification and ventilation systems built for that. The older housing stock in Lake Oswego North and Lake Oswego East often still runs on undersized returns and single-stage furnaces that struggle through a Clackamas County winter. We handle furnace repair, AC repair, heat pump repair and full replacements across ZIP codes 97034 and 97035. Our trucks carry R-410A refrigerant, capacitors, contactors and blower motors so most repairs finish in one visit. If you have been searching for HVAC Service Lake Oswego OR homeowners actually recommend, we would rather earn that with a clean install and a straight answer on price than with a sales pitch.

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Lake Oswego sits in a pocket of Clackamas County where summers push past 95 degrees and winters drop into the low 20s, so equipment here cycles harder than in Portland proper. The mix of 1950s ranches, 1990s two-stories and newer lakefront builds means we see every kind of system: gas furnaces, heat pumps, and dual-fuel setups. Demand spikes hard in the first cold snap and again in the first heat wave, which is why we keep two trucks staged for the Lake Oswego route.

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Services available in Lake Oswego

HVAC Services We Run Across Lake Oswego

Every service below is delivered by our own licensed techs, not subcontracted out. If you need HVAC Service in Lake Oswego near me on a Sunday night, we answer the phone and roll a truck. Most standard repairs are same-day, and we stock the common parts for Carrier, Trane, Lennox, Goodman, Rheem and York equipment so we are not waiting on a supply house.

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furnace repair

Furnace repair in Lake Oswego usually means a failed ignitor, a dirty flame sensor or a cracked heat exchanger on an older unit. We test gas pressure, inspect the burners and check the flue before we call it fixed. Most repairs are done in one visit, and we carry common ignitors and sensors on the truck.

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air conditioning repair

AC repair across Lake Oswego South and Lake Oswego East picks up hard in July. We check refrigerant charge with manifold gauges, test the capacitor and contactor, and clean the condenser coil. If your system is short-cycling or blowing warm air, we diagnose it on the first visit and give you a flat repair price.

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furnace replacement

When a Lake Oswego furnace is past 18 years or has a cracked heat exchanger, replacement beats another repair. We size the new unit to the house, not to the old nameplate, and we handle the permit and haul-away. Most replacements are finished in a single day with the heat back on by evening.

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air duct cleaning

Duct cleaning in Lake Oswego matters most in older homes with fiberglass duct insulation that has started shedding. We run a duct cleaning vacuum through the trunk lines, brush the runs, and check for duct leakage at the joints. Lakefront homes often see more dust and pollen pulled in, so we pay attention to the return side.

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heating repair

Heating repair calls in Lake Oswego North spike the first week temperatures drop below freezing. We diagnose ignition failure, blower motor failure and thermostat malfunction, then fix what is actually broken. You get a written price before we start, and we test the heat rise after the repair.

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heat pump repair

Heat pumps are common in newer Lake Oswego builds because they handle both seasons well. When one stops heating, it is often a reversing valve, a defrost board or a refrigerant leak. We carry R-410A and R-22, leak detectors and a recovery machine, so we can repair most systems without a second trip.

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emergency HVAC repair

Emergency HVAC repair in Lake Oswego runs 24/7, including holidays. If your furnace dies at 2 a.m. in January or your AC quits during a 100-degree afternoon, call and we dispatch. We prioritize no-heat calls in winter and no-cool calls in summer, and we tell you the price before we roll.

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AC repair

AC repair in Lake Oswego often traces back to a dirty air filter, a frozen evaporator coil or a clogged condensate drain. We clear the drain line, thaw the coil and check the charge. If the compressor is failing, we tell you straight rather than selling a repair that will not hold.

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heating and cooling repair near me

If you are searching heating and cooling repair near me in Lake Oswego, we cover both sides of the system in one visit. That means we check the furnace and the AC together, since a failing blower motor or a bad thermostat affects both. One trip, one diagnostic fee, both systems tested.

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ventilation system maintenance

Ventilation system maintenance is a real need on lakefront properties where humidity control matters. We inspect the fresh-air intake, clean the HRV or ERV core, and check the ductwork for leaks. Doing this each fall keeps indoor air from getting stale and damp through the wet months.

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hvac maintenance

Our HVAC maintenance visit covers both systems: we clean the AC coil, check the refrigerant charge, test the furnace ignition, replace the air filter and inspect the condensate line. We recommend one visit each spring and one each fall. Customers on the plan get priority scheduling when something breaks.

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hvac replacement

Full HVAC replacement in Lake Oswego means matching the outdoor unit, indoor coil and furnace so the whole system works together. We measure static pressure, check the ductwork and size the equipment to the house. Most replacements take one to two days, and we handle the Oregon permit and inspection.

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AC installation

AC installation in Lake Oswego East and Lake Oswego South often means adding cooling to a home that never had it. We run the line set, set the pad, wire the disconnect and charge the system by weight. We follow ACCA standards for sizing so the unit is not oversized for the ductwork.

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Heat pump repair

Heat pump repair in Lake Oswego covers Mitsubishi Electric and Daikin systems as well as standard split units. We check the defrost cycle, test the reversing valve and verify the auxiliary heat. If the system is low on charge, we find the leak with a detector before we add refrigerant.

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Air conditioner replacement

Air conditioner replacement makes sense when a unit is over 15 years old or the repair cost passes half the price of new. We quote Carrier, Trane, Lennox and Goodman options at different price points. You get the numbers in writing, and we do not push the most expensive unit.

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Smart thermostat installation

Smart thermostat installation is popular in Lake Oswego because Nest and Ecobee units handle the schedule changes that come with lakefront living. We wire the C-terminal properly, configure the equipment settings and walk you through the app. Most installs take under an hour.

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Same-day HVAC service

Same-day HVAC service in Lake Oswego is our default, not a premium. Call before noon and we aim to be there the same afternoon. We keep parts for the most common failures on the truck, so a capacitor, contactor or ignitor swap happens on the spot.

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Furnace maintenance

Furnace maintenance each fall catches the problems that cause no-heat calls in January. We clean the burners, test the ignitor, check the heat exchanger for cracks and replace the filter. It takes about an hour, and it is the cheapest way to avoid a mid-winter breakdown.

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pre-summer AC tune-up

A pre-summer AC tune-up in Lake Oswego should happen in April or May, before the first 90-degree day. We clean the condenser coil, check the charge, test the capacitor and clear the condensate drain. Systems we tune in spring run cooler and use less power in July.

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winter furnace tune-up

A winter furnace tune-up keeps your heat reliable through the cold months. We inspect the burners, test the safety switches, check the flue and verify the temperature rise. If we find a worn part, we tell you and quote the fix before it fails on a holiday weekend.

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HVAC repair near me

When you search HVAC repair near me in Lake Oswego, you want a local truck, not a call center. We are based in Milwaukie and run a dedicated Lake Oswego route daily. That means shorter drive times and techs who already know the neighborhoods and the common equipment here.

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Local HVAC repair

Local HVAC repair means we are close enough to come back if something is not right. We warranty our workmanship, and if a repair fails within the warranty window we return at no charge. That is easier to honor when the shop is 15 minutes away, not across the state.

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24/7 HVAC repair

24/7 HVAC repair in Lake Oswego is staffed by real technicians, not an answering service. If you call at 3 a.m. with no heat, a live person picks up and we dispatch. Winter no-heat calls get top priority because a cold house is a real safety issue.

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AC repair near me

AC repair near me searches in Lake Oswego usually mean the house is already uncomfortable. We diagnose on the first visit: refrigerant charge, capacitor, contactor, blower motor and thermostat. You get a flat price for the repair, and we do not leave until the supply air is cold.

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heating and cooling near me

Heating and cooling near me in Lake Oswego covers the full system, and we service both sides. A weak blower motor hurts heating and cooling equally, so we test airflow and static pressure, not just the part that stopped working. One diagnostic fee covers both systems.

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central air repair

Central air repair in Lake Oswego often starts with a frozen evaporator coil or a clogged condensate drain. We thaw the coil, clear the PVC condensate line and check the charge. If the coil is leaking refrigerant, we find it with a leak detector and quote the repair honestly.

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ac tune up

An AC tune up in Lake Oswego is a one-hour visit that pays for itself in efficiency. We clean the coil, check the refrigerant charge, test the capacitor, clear the drain and replace the filter. Do it in spring and your system is ready before the first heat wave.

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More than a service list

How We Run HVAC Service in Lake Oswego

Running HVAC Service in Lake Oswego means dealing with real logistics: narrow lakefront driveways, steep lots off the lake, and older homes where the air handler is buried in a crawlspace. We confirm access before we arr

Lake Oswego HVAC Service

Lakefront humidity drives indoor moisture problems

Homes close to the water see higher indoor humidity, which stresses ductwork and can lead to mold in the vents. Standard AC alone does not remove enough moisture, so equipment sizing and ventilation matter more here than in inland neighborhoods.

We check indoor humidity on every lakefront call and recommend ventilation or dehumidification when the AC cannot keep up. We also inspect fiberglass duct insulation for moisture damage, since damp insulation loses its value fast and can grow mold.

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Lake Oswego HVAC Service

Older ductwork in mid-century Lake Oswego homes

Many homes built in the 1950s and 1960s have undersized returns and leaky sheet metal ductwork. That starves airflow, raises static pressure and shortens the life of blower motors and compressors.

We measure static pressure and inspect the duct runs before quoting a repair or replacement. If the ductwork is the real problem, we tell you that instead of selling a bigger unit that will fail the same way. Sealing and resizing the returns often fixes comfort issues a new furnace cannot.

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Lake Oswego HVAC Service

Steep driveways and tight access on the lake side

Some lakefront properties have narrow driveways or stairs that make it hard to get equipment and tools to the unit. That can slow a job or require extra hands, which affects scheduling.

We ask about access when you book so we send the right truck and crew size. For tight spots we bring compact tools and plan the equipment path in advance. That keeps the job on schedule instead of turning into a two-day surprise.

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Early warning signs

Signs You Need HVAC Service in Lake Oswego

01AC runs but the house stays warm

02Furnace short-cycles on and off

03Thermostat will not hold the set temperature

04Water pooling near the indoor unit

05Musty smell from the vents

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We know the route

Navigating Lake Oswego: Landmarks We Use

Lake Oswego is not a grid, so we navigate by landmarks. George Rogers Park and Lakewood Center are the two easiest orientation points on the west side, and Lake Oswego City Hall anchors the downtown core near A Avenue. If you give us a cross street near any of these, we can find you fast. We also know which streets back up during the evening commute, so we route around them.

TLake Oswego

George Rogers Park

A well-known park on the west side of the lake, useful as a navigation reference for the surrounding residential streets and the older neighborhoods nearby.

TLake Oswego

Lakewood Center

A central gathering and performance space in Lake Oswego, handy as an orientation point for the surrounding commercial and residential blocks.

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Lake Oswego City Hall

Located near the downtown core, City Hall is a reliable reference for finding the streets and businesses around A Avenue and the lakefront district.

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Primary Lake Oswego response zone

Lake Oswego service coverage

Is your ZIP on the route?

These are our most frequently served ZIP codes. Nearby areas may also qualify—call if you do not see yours.

970349703597036

Popular neighborhoods

Lake Oswego North · Lake Oswego South · Lake Oswego East · Lakefront and Lakewood area

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Outside Lake Oswego?

Serving Lake Oswego and Nearby Cities

01Downtown MilwaukieOur home base, roughly 15 minutes from Lake Oswego via Highway 43. Many of our Lake Oswego customers first found us through Milwaukie referrals.↗02Milwaukie HeightsJust north of Lake Oswego, about 20 minutes out. We serve this area on the same route as Lake Oswego North.↗03Lake RoadA nearby Milwaukie-area neighborhood about 15 minutes from Lake Oswego. Customers here often share the same older housing stock and ductwork issues.↗04Hector CampbellRoughly 20 minutes from Lake Oswego. We cover this area on the same daily route as our Milwaukie and Lake Oswego calls.↗

Lake Oswego HVAC Service FAQ

FAQs About HVAC Service in Lake Oswego

Our team can help if your question is not answered here.

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Most standard repairs in Lake Oswego run $180 to $450 in 2026, covering parts like capacitors, ignitors and contactors. Larger repairs such as a blower motor or reversing valve run $500 to $1,200. Full system replacements range from $4,500 to $12,000 depending on size and efficiency. We quote in writing before we start.

The best contractor is the one who shows up when they say, quotes in writing and stands behind the work. We have served Lake Oswego since 2023, carry Oregon CCB licensing and EPA Section 608 certification, and warranty our workmanship. Ask any contractor for their license and a written price before you hire.

Yes. We run 24/7 HVAC repair in Lake Oswego with real technicians answering the phone, not an answering service. No-heat calls in winter and no-cool calls in summer get priority. If you call at 3 a.m. with a dead furnace, we dispatch a truck.

Check the Oregon CCB license, ask for a written price, and confirm they stock parts for your brand. Ask about the labor warranty and whether the diagnostic fee is credited toward the repair. A contractor who answers those five questions clearly is worth hiring.

Yes. Call before noon and we aim to be there the same afternoon. We keep common parts on the truck, so capacitor, contactor and ignitor repairs usually finish in one visit. Lake Oswego is on our daily route, so we are rarely more than a day out for non-emergency work.

Lake Oswego team is ready

Need HVAC Service Milwaukie today? Call now

No heat, no cool, or a system making noise you do not like, we answer 24/7. Licensed techs, stocked vans, flat pricing before we start, and a real ETA by text. Call (855) 947-9500.

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Lake Oswego service hubMilwaukie, Oregon(855) 947-9500Open 24 hours · 7 days a week