HVAC Repair & Replacement Cost in Pittsburgh, PA (2026), Including Boilers
HVAC pricing in Pittsburgh splits into two very different tracks: forced-air furnace and AC work, which behaves like most of the country, and boiler and radiator work, which is common here because of how much pre-1940 housing exists in neighborhoods like Bloomfield, Point Breeze, and South Side. This guide covers 2026 costs for both, so you know what to expect whether you're in a Cranberry Township colonial or a Lawrenceville row house. Once you have a budget in mind, get matched with Pittsburgh HVAC pros to get quotes.
By Homeowner Henry · HVAC · Published September 7, 2026 · 8 min read
Furnace repair and replacement costs
Furnace repair: $175-$700 for common issues like an igniter, flame sensor, or blower motor capacitor.
Furnace replacement: $3,900-$7,800 for a mid-efficiency to high-efficiency gas furnace installed in a home with existing ductwork. Homes needing duct modifications or a higher-tonnage unit run toward the top of that range or beyond.
Heat exchanger replacement or cracked heat exchanger issues: $1,200-$2,500, though at that cost many contractors will recommend a full furnace replacement instead, especially on units over 12-15 years old.
Boiler repair and replacement costs
Boiler repair (circulator pump, zone valve, pressure relief valve): $300-$950.
Boiler repair (heat exchanger, major control board): $900-$2,200.
Full gas boiler replacement: $6,500-$13,000 in a typical Pittsburgh row home or older single-family, depending on boiler output size, whether it's a standard efficiency or high-efficiency condensing boiler, and how much of the existing piping can be reused.
Radiator repair, including bleeding, valve replacement, or resealing a leaking connection: $150-$450 per radiator. If a whole system needs re-piping or new thermostatic radiator valves throughout the house, costs climb into the thousands depending on the number of radiators.
Boiler work requires a different skill set than forced-air work — hydronic systems, steam traps, and radiator balancing aren't part of every HVAC company's core business. When you're comparing quotes, ask directly how many boiler jobs the company does in a typical month.
Central AC and mini-split costs
Central AC replacement in a home with existing ductwork: $5,200-$9,800 for a 2.5-3 ton system, sized to your home's square footage and insulation.
New ductwork added to an older home to support central air: $4,500-$9,000, which is often why homeowners in Squirrel Hill or Shadyside row houses choose ductless instead.
Ductless mini-split, single zone: $3,800-$6,500. Multi-zone (3-4 zones): $10,500-$18,000.
For a deeper breakdown of AC-specific repair pricing, see AC Repair Cost in Pittsburgh.
What drives Pittsburgh HVAC costs up or down
Access is the biggest local factor. Basements in older Pittsburgh homes are often low-ceilinged with narrow stairs, which slows equipment removal and installation and can add a few hundred dollars in labor versus a walk-out suburban basement.
Boiler jobs also vary a lot based on piping condition — if the existing pipes and radiators are in good shape, a boiler swap is simpler; if pipes are corroded or undersized, expect the quote to be noticeably higher.
Financing and rebates matter too: Peoples Natural Gas and other regional utilities periodically offer efficiency rebates for high-efficiency furnaces and boilers, so ask any contractor you're considering whether current rebates apply to your project.
Permits and getting it done right
Inside city limits, PLI requires a residential mechanical permit for furnace, boiler, and central AC replacement, filed through OneStopPGH. Outside the city, check with your local municipality — Mt. Lebanon, Ross, and Cranberry each handle permitting through their own building departments.
Because Pennsylvania doesn't license HVAC contractors at the state level, the permit and inspection process is one of the few outside checks on a job's quality, so don't let a contractor skip it. Search HVAC companies in Pittsburgh or get matched with Pittsburgh HVAC pros to find contractors who handle both the permit paperwork and the actual work.
Typical cost ranges
| Furnace repair | $175 - $700 |
| Furnace replacement | $3,900 - $7,800 |
| Boiler repair (pump, valve) | $300 - $950 |
| Boiler replacement | $6,500 - $13,000 |
| Radiator repair (per unit) | $150 - $450 |
| Central AC replacement | $5,200 - $9,800 |
| Ductless mini-split, single zone | $3,800 - $6,500 |
| New ductwork in an older home | $4,500 - $9,000 |
Ranges are general estimates gathered from homeowner-reported quotes, not an offer or a quote for your project.
Common questions
How much does it cost to replace a boiler in Pittsburgh?
A full gas boiler replacement typically costs $6,500-$13,000 depending on boiler size, efficiency rating, and how much of the existing radiator piping can be reused.
Is boiler heat more expensive to maintain than a furnace?
Routine maintenance is comparable, but boiler repairs involving circulator pumps, zone valves, or radiator issues require a technician experienced with hydronic systems, which not every furnace-focused company offers.
Why don't more Pittsburgh homes have central air?
A large share of city housing predates 1940 and was built with boilers and radiators, not forced-air ductwork, so central air requires either adding ducts or installing a ductless mini-split system.
Do I need a permit to replace a furnace or boiler in Pittsburgh?
Yes, in most cases. The City of Pittsburgh requires a residential mechanical permit through PLI's OneStopPGH portal for furnace, boiler, and central AC replacement work.
How much does a whole-home ductless mini-split system cost?
A multi-zone mini-split system covering 3-4 rooms typically runs $10,500-$18,000 installed, which is often less than adding full ductwork to an older Pittsburgh home.
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