Fast, Reliable Emergency & Commercial HVAC Across Pontiac
When your furnace quits on a January night in Pontiac or your rooftop unit fails during a summer lunch rush, you need someone who answers the phone and shows up. We do both. Call (866) 561-3358 and you’ll reach a live person, 24 hours a day, who can dispatch our Emergency & Commercial HVAC team to any Pontiac address, usually within the hour for true emergencies.
We’ve been driving these streets since 2018. We know the worker bungalows of the 48340 ZIP code, the converted commercial spaces along Woodward, and the aging two-story foursquares in 48342. Pontiac’s housing stock is unlike anything in Oakland County, and that matters when you’re diagnosing a no-heat call at 2 a.m. or sizing equipment for a building that hasn’t had a proper HVAC update since the Carter administration.
Why Fireside Heating & Air Co. Is Pontiac’s Preferred Emergency & Commercial HVAC Company
Pontiac homeowners remember the last contractor who let them down. We built our reputation on being the company they never have to replace. Over 8 years, we’ve earned a strong local reputation across Oakland County, with Pontiac customers specifically citing our technicians’ patience in explaining what’s actually wrong with their system, not what we’d like to sell them.
Our response time to Pontiac averages under an hour for emergency calls during heating season, and we carry parts for Carrier, Trane, Lennox, and the other major brands on every truck. That means most jobs finish in a single visit.
What sets us apart here is local knowledge you can’t fake. We know that a “simple” furnace replacement on a north-side block often means discovering an abandoned octopus gravity furnace, dead ductwork, and an unlined flue that hasn’t been inspected in decades. Generic technicians quote a swap-out. We quote what the house actually needs, because we’ve been inside enough Pontiac basements to know what we’re walking into.
Every job is backed by our 90-Day Done Right Promise: if it’s not right, we make it right, in writing, no paperwork, no arguing. That’s the Keystone Standard, and it’s how we’ve operated since Glen Hartman founded this company in 1984.
Our Emergency & Commercial HVAC Services in Pontiac
24/7 Emergency HVAC
Pontiac sits 940-980 feet above sea level, several hundred feet higher than Detroit. That elevation means colder average lows and heavier snow accumulation, which pushes aging heating systems past their limit every January and February. When your furnace fails at midnight and the temperature’s dropping toward single digits, you can’t wait until morning. Our phones are answered by a live person around the clock, every day of the year, including holidays. We dispatch trained journeymen, not trainees, and we quote upfront pricing before any work begins. The price we say is the price you pay.
Commercial HVAC
Pontiac’s commercial buildings face their own legacy problems. Downtown structures converted from retail to office to residential and back again often contain decades of layered, incompatible equipment. We service restaurants near the Phoenix Center, small manufacturers along Baldwin, and property managers handling converted duplexes throughout 48340 and 48341. Our commercial work includes proper load calculations for buildings that have outgrown their original systems, code-compliant venting remediation, and replacement of equipment that was never properly matched to the space it serves.
Rooftop Unit Service & Replacement
Flat-roof commercial buildings throughout Pontiac rely on packaged rooftop units that have been patched past their useful life. We see York and Carrier RTUs from the 1990s still running on borrowed time, with failed economizers, cracked heat exchangers, and refrigerant leaks that drive operating costs through the roof. Our team can repair what makes sense to repair and replace what doesn’t, with proper crane coordination and Oakland County permitting handled start to finish.
Chiller Service
For Pontiac’s larger commercial and institutional facilities, chiller failures can shut down operations entirely. We diagnose and repair scroll, screw, and centrifugal chillers, with emergency response to get critical systems back online. When replacement is the smarter long-term play, we size new equipment properly for Michigan’s full seasonal range, not just the design day.
HVAC Inspection
Before you buy a Pontiac property, especially in the older neighborhoods, an HVAC inspection from someone who knows this market is essential. We’ve found abandoned octopus furnaces behind false walls, unlined flues actively venting into basements, and split systems installed without permits that won’t pass Oakland County code. Our inspection reports tell you what you’re actually buying, not just what the seller disclosed.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Pontiac
Our technicians are trained to service all nine major residential and commercial brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. We stock common parts for Carrier, Trane, and Lennox on our Pontiac-area trucks, which means faster repairs and fewer return trips. For older systems, we maintain relationships with regional suppliers who can source hard-to-find components for discontinued models. That matters in Pontiac, where we regularly encounter equipment that hasn’t been manufactured in thirty years.
Common Emergency & Commercial HVAC Problems We See in Pontiac Homes
- Dead ductwork from abandoned octopus gravity furnaces. On Pontiac’s older north-side blocks, it’s common to open a basement and find a 1950s octopus gravity furnace still in place, abandoned when a wall unit or undersized split was added in a closet. The original ductwork is dead, there’s no return-air pathway, and combustion air is inadequate. Any new system must be fully remediated before it can be commissioned to code.
- Unlined flues creating combustion hazards. Original 1940s and 1950s gravity furnaces were vented through unlined masonry chimneys or single-wall metal flues that have deteriorated over decades. Connecting modern high-efficiency equipment to these without proper liner installation or direct-vent conversion creates carbon monoxide risks and code violations.
- Catastrophic failure during extreme cold snaps. Decades of patchwork repairs on cast-iron boilers and first-generation forced-air systems reach their end when Pontiac’s January temperatures plunge. We see cracked heat exchangers, failed circulator pumps, and seized blower motors that were nursed along one season too many.
- Undersized and contaminated ductwork in rental conversions. High vacancy rates and unpermitted additions have left much of Pontiac’s ductwork disconnected, debris-filled, or sized for equipment that no longer exists. New systems connected to this infrastructure perform poorly and fail prematurely.
Heating and Cooling in Pontiac Done Right
From Ann Arbor’s old farmhouses to the post-war brick ranches that fill the Detroit suburbs, this metro runs on furnaces that earn their keep. Fireside keeps them honest. We give you straight math on repair versus replace, tune-ups that catch the failure before the first freeze, and techs who put on shoe covers without being asked. Our shop is we coordinate through our Detroit Metro service area, dispatching licensed journeymen who treat your house like they’d treat their mother’s. That’s the K.E.Y.S. code, and it’s how we’ve worked since 2018.
The Keystone Standard applies to every job: 90 days, in writing, no arguing. If it’s not right, we come back. No paperwork, no runaround. Mention this page and take $50 off any repair over $250.
Heating and Cooling in Pontiac
Winters here start early and summers can turn humid fast. That first freeze or heat wave always finds the systems that skipped their tune-up. In Pontiac, we see a lot of builder-grade furnaces and ACs hitting their second decade, and we give straight talk on whether a repair is worth your money or if it’s time to replace. Our techs are licensed, insured, and trained to journeyman standard, because a job done right means you don’t have to think about it again. we coordinate through our Detroit Metro service area
We show up when we say, wear shoe covers without asking, and leave the price on the table before we start. The Keystone Standard covers every repair for 90 days, in writing, no arguing. If you’re in Pontiac and your system’s acting up, call us. We’ll handle it.
Heating and Cooling in Pontiac
Winters here start early and summers can turn humid fast. That first freeze or heat wave always finds the systems that skipped their tune-up. In Pontiac, we see a lot of builder-grade furnaces and ACs hitting their second decade, and we give straight talk on whether a repair is worth your money or if it’s time to replace. Our techs are licensed, insured, and trained to journeyman standard, because a job done right means you don’t have to think about it again. we coordinate through our Detroit Metro service area
We show up when we say, wear shoe covers without asking, and leave the price on the table before we start. The Keystone Standard covers every repair for 90 days, in writing, no arguing. If you’re in Pontiac and your system’s acting up, call us. We’ll handle it.
Pricing for Emergency & Commercial HVAC in Pontiac, MI
We believe in straight talk about what things cost. Here’s what Pontiac homeowners and business owners can expect:
| Service | Price Range in Pontiac |
|---|---|
| Furnace Repair | $150-$700 |
| AC Repair | $150-$650 |
| Seasonal Tune-Up | $80-$200 |
What moves you toward the higher end: after-hours emergency calls, hard-to-source parts for discontinued equipment, and the additional remediation that Pontiac’s legacy systems often require. A furnace replacement that includes removing an abandoned octopus gravity furnace, installing proper return-air ductwork, and bringing venting up to Oakland County code costs more than a simple swap in a newer suburb. But we quote everything upfront. No add-ons, no surprises, no fine print.
Current offers: $50 Off Any Repair Over $250 | Free Second Opinion on Any Written Estimate | $89 Seasonal Tune-Up | Senior & Veteran 5% - Always. Call (866) 561-3358 for your free estimate.
We Also Serve Cities Near Pontiac
Our Emergency & Commercial HVAC in Pontiac team also responds to Waterford, West Bloomfield Township, Troy, and Rochester Hills. Each community has its own housing stock and its own common failure modes, but the same Fireside standard applies: done right, or we make it right, in writing, for 90 days.
Serving Pontiac, MI - Our Local Coverage Area
We’re based in the Pontiac area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Emergency & Commercial HVAC in Pontiac
No. The abandoned furnace must be removed, the dead ductwork replaced or properly connected, and a return-air pathway installed before any new system can be commissioned to Oakland County code. We handle the full remediation, including proper disposal of the old unit and any asbestos-containing materials. Call (866) 561-3358 for an exact quote - estimates are free.
No. Unlined flues are not safe for modern high-efficiency equipment and violate current code. We install proper stainless steel liners or convert to direct vent, depending on your specific layout and the appliance we’re installing. This is not optional, and any contractor who says otherwise is putting you at risk. Call (866) 561-3358 for an exact quote - estimates are free.
Yes. We replace outdated rooftop units with properly sized, code-compliant equipment, handling all crane logistics and Oakland County permitting. We’ll also evaluate whether your building’s current load matches the original design, since downtown Pontiac conversions often have different heating and cooling needs than the original tenant. Call (866) 561-3358 for an exact quote - estimates are free.
Usually yes, but it requires a full ductwork assessment and often significant modification. Disconnected or debris-filled ducts from previous unpermitted installations must be cleaned, repaired, or replaced, and the system properly zoned for multi-unit occupancy. We handle this work start to finish, including any needed permit applications. Call (866) 561-3358 for an exact quote - estimates are free.
Weekend emergency furnace repairs in Pontiac typically run $150-$700, same as weekday hours. We do not charge extra for after-hours or weekend emergency calls. The price depends on the part failed and whether your system is a standard modern unit or one requiring hard-to-source components for discontinued equipment. Call (866) 561-3358 for an exact quote - estimates are free.
On a January night in the 48340 ZIP code, our crew responded to an emergency no-heat call in a worker bungalow on a north-side block. We found an abandoned octopus gravity furnace still taking up basement space, with unlined flue and a failed 1970s Carrier wall furnace that had been patched for decades. We isolated the dead ductwork, installed a new Goodman 96% AFUE furnace with proper return air, and brought the system up to Oakland County code. The homeowner had heat by morning, and we haven’t heard from her since. That’s the point.
If your Pontiac home or business needs emergency service, a system replacement, or an honest assessment of what you’re dealing with, call (866) 561-3358. A live person will answer, day or night, and we’ll give you straight talk about repair versus replace, upfront pricing, and a written 90-Day Done Right Promise. We’ve been serving this community since 2018. We’re not going anywhere.
Written by Glen Hartman, Owner at Fireside Heating & Air Co., serving Pontiac since 2018.