Lakewood HVAC, Heating & Cooling Services

We’re Ponderosa Heating & Air Conditioning, and Lakewood is the biggest town we serve: 69,296 households, more than any other city on our list, spread from the Sheridan Boulevard line to the top streets on Green Mountain. Our metro crew reaches all of it from the Golden shop, the next town west on US 6, with the full menu: heating, cooling, water heaters, gas fireplaces, standby generators, electrical and plumbing.

Lakewood also has a birthday that matters to your furnace. The city doubled from about 45,000 people in 1962 to 94,000 when it incorporated in 1969, and the city’s own planning history says most of its housing went up between 1969 and 1980. The median Lakewood home dates from 1977. That single fact sets up almost everything on this page: what’s in the mechanical room, what’s on the roof, and what the replacement will look like.

A city built between 1969 and 1980, and what that left behind

Lakewood is a young city full of middle-aged houses. It incorporated on June 24, 1969, after Denver started annexing to the west, and the subdivisions that filled Green Mountain, Bear Creek, Alameda, Meadowlark, Bancroft and Cloverdale were mostly finished by the early 1980s. The ranches and split-levels of that era came with a gas furnace in the basement or a utility closet, sheet-metal ducts sized for it, and, more often than anywhere else on the Front Range, an evaporative cooler on the roof.

Fifty years on, the furnace has usually been replaced once or twice. The ducts haven’t. What we walk into in a 1977 Lakewood house is a 2005 furnace bolted to 1977 ductwork, with the original returns, the original register locations and a supply trunk that was never balanced after the basement got finished. The equipment is rarely the weak point. The distribution is. So before we quote a furnace in Lakewood, we look at the ducts, because a new furnace on a starved return will run just as badly as the old one.

First-generation air conditioning is now the replacement job

The other thing 1977 left behind is the first wave of central air. A lot of Lakewood homes got a condenser bolted onto the furnace in the 1990s or early 2000s, and those systems are now at the end of their run. This is where the refrigerant change catches people. No complete residential systems on R-410A are being manufactured any more; new equipment ships on the newer A2L refrigerants, and a condenser has to be matched to an indoor coil rated for the same refrigerant. In practice, a failed 20-year-old condenser in Lakewood becomes a matched-system replacement, not a condenser swap.

The federal rule that would have forced a hard stop on installing leftover R-410A equipment was relaxed in July 2026, so pre-2025 units can still go in while stock lasts. We’ll tell you when that’s the better buy for your house and when it isn’t. What we won’t do is sell you a mismatched coil and condenser to save a week.

Don’t pull a working swamp cooler for central air without running the numbers

First, running cost. A swamp cooler uses a pump and a blower; a central air system uses a compressor, and the electricity bill knows the difference. Second, the permits. In Lakewood, adding air conditioning to an existing furnace takes a mechanical permit and an electrical permit, because the condenser needs its own circuit, and a 1970s panel doesn’t always have the room. That’s a panel conversation before it’s an air-conditioning conversation. Third, the ducts. A 1977 supply trunk sized for heat can be undersized for cooling airflow, which is why some Lakewood AC retrofits leave the upstairs warm. If the three answers line up in favor of central air, we’ll put it in right. If they don’t, we’ll say so, and a ductless mini-split in the one hot room is often the right middle answer.

Fewer than half of Lakewood’s homes are detached houses

Lakewood’s 2013 housing count found 64,392 units, and fewer than half were detached single-family homes. The rest are condos, townhomes, duplexes and apartments, and 42% of Lakewood households rent. That shapes the work. A condo furnace lives in a closet with a shared flue and no room to grow. A townhome water heater sits in a cubby the builder measured to the inch. A 1970s apartment building may have electric baseboard in every unit, which is part of why one Lakewood household in four heats with electricity.

The city has a rule for that stock, too. Owners of townhomes and condos must hire a contractor registered with the City of Lakewood for systems work. They can’t pull their own permit the way a detached-home owner can. We’re registered, and we work with HOAs and landlords across the city. For the electric-baseboard buildings we’ll talk through ductless heat pumps honestly, including the cases where the panel or the budget says not yet.

Green Mountain is 600 feet higher than Belmar

Lakewood isn’t flat. The east edge along Sheridan sits near 5,370 feet. Belmar and the civic center sit near 5,520. The upper streets of Green Mountain Village and Green Mountain Estates run past 6,100 feet, on the flank of a 6,854-foot summit. That spread shows up in three places. A 100,000 BTU furnace delivers about 86,000 BTU at Belmar’s elevation and about 83,000 on upper Green Mountain, using the makers’ 4%-per-1,000-feet derate above 2,000 feet. The city’s design sheet treats everything west of Kipling as a higher-wind zone, which changes how a rooftop cooler or a condenser pad is anchored. And the city’s wildfire hazard map puts Green Mountain and its ravines in the highest-risk class.

For a Green Mountain furnace that means we size at the address, not at the city average. If we re-terminate a vent on a house that backs onto Hayden Park, we treat it as a wildland-interface address and fit an ember-resistant termination.

Permits go through the City of Lakewood, and inspections come fast

The City of Lakewood requires a permit for a water heater, furnace or air conditioner replacement; the city’s exemption list says so in as many words. Permits are pulled through the city’s eTRAKiT system, and a contractor has to be registered with Lakewood to use it. The permit counter is at 480 S Allison Pkwy, 303-987-7500.

The good news is speed. The city says inspections booked through eTRAKiT by 7 a.m. are typically done the same day, so a furnace swapped on Tuesday is usually inspected on Tuesday. Lakewood is on the 2021 International Residential, Mechanical, Fuel Gas and Energy Conservation Codes, with the 2023 National Electrical Code. That’s one edition behind the 2024 codes Golden and Jefferson County now use. The city’s design sheet sets the winter design temperature at 1 °F, the frost depth at 36 inches and the climate zone at 5. That 1 °F is the number a Lakewood Manual J is run against.

The 2026 furnace list is shorter than the 2024 one

Since January 1, 2026, Colorado’s HB23-1161 has required new furnaces and water heaters sold here to meet CDPHE’s NOx limit. In Lakewood the practical effect is simple: some of the model numbers on a 2024 quote can’t be installed in 2026, and the ones that can are a shorter list. We quote from the current list.

Lakewood gets the full menu

What we do in Lakewood

Duct corrections, panel work, generator sizing and boiler jobs are quoted after we’ve seen the house. Request a quote and we’ll come across from Golden.

Frequently asked questions

Do I need a permit to replace my furnace or water heater in Lakewood?

Yes. The City of Lakewood’s own exemption list names water heater, furnace and air conditioner replacements as work that needs a permit. We pull it through eTRAKiT as part of the job and schedule the inspection, which the city typically performs the same day when it’s booked by 7 a.m.

Why does my AC replacement quote include a new indoor coil?

Because the refrigerant changed. New systems ship on A2L refrigerants rather than R-410A, and the outdoor unit has to be matched to a coil rated for the same refrigerant. A 1990s or 2000s system in Lakewood almost always becomes a matched-system replacement.

Should I replace my swamp cooler with central air?

Not automatically. We’ll run three checks first: what it will cost to run, whether your panel has room for the condenser circuit the city’s electrical permit will require, and whether your 1970s ducts can carry cooling airflow. If all three come back fine, central air makes sense. If not, a mini-split in the hot room is usually the better spend.

I own a condo or townhome. Can I pull my own permit?

No. Lakewood lets owners of detached single-family homes permit their own systems work, but owners of townhomes and condominiums have to hire a contractor registered with the city. We’re registered and we handle the permit.

Is Green Mountain sized differently from the rest of Lakewood?

Slightly. The upper streets sit around 6,100 feet against 5,500 in central Lakewood, which costs a furnace a couple of percentage points more output, and the city’s design sheet puts everything west of Kipling in a higher wind zone. We size and anchor for the address.

Do you install generators and do electrical and plumbing in Lakewood?

Yes. Lakewood is served from the Golden shop with the full menu: standby generators, panel and circuit work, and plumbing, from the same crew as the HVAC work.

Which parts of Lakewood do you cover?

All of it: Green Mountain Village, Green Mountain Estates, Belmar, Bear Creek, the Lakewood side of Applewood, Union Square and the Federal Center area, Lakewood Heights, Morse Park, Alameda, Meadowlark, Bancroft and Cloverdale. If it’s a Lakewood address, the Golden crew covers it.

My building has electric baseboard heat. Is a heat pump realistic?

Often, yes, in the form of a ductless system, and one Lakewood household in four heats with electricity, so we see the question a lot. The honest limits are panel capacity and the number of rooms. We’ll look at both and tell you whether it pencils out.

Talk to us about your Lakewood home

Call 720-470-1133 or request a quote online. Tell us the year the house was built and whether there’s a cooler on the roof, and we’ll know most of what we need before we cross Sixth Avenue.