
Furnace Installation and Replacement Services in Largo, FL and Pinellas County
The cooler months in Largo, FL, and across Pinellas County bring a distinct need for a reliable and efficient heating system. When your furnace struggles to ignite, emits strange odors, or simply fails to provide warmth, it's more than just an inconvenience; it can create an uncomfortable chilly environment in your home or business.
We understand the importance of finding a dependable company to restore comfort to your space. This is why Air Zero is here to offer clear, effective solutions to your heating challenges. Considering a new furnace or need to replace your current heating system? Contact us today for a free estimate!
You can easily connect with our team by calling (727) 594-7593 or by filling out our online contact form.
Furnace Installation Services
New Furnace Installation requires careful planning and precise execution. We assess your home's heating requirements, ductwork condition, and energy efficiency goals before recommending the right system. Our installation process includes proper sizing calculations, permits when needed, and thorough testing to ensure your new furnace performs optimally from day one.
Our installation services cover:
- Electric furnace installation for properties without gas access
- High-efficiency systems that reduce monthly utility costs
- Proper ductwork connections and air quality improvements
- Thermostat Services integration for better temperature control
Furnace Replacement Solutions
Furnace replacement becomes necessary when repair costs exceed the value of your current system or when your unit consistently fails to maintain comfortable temperatures. We help homeowners make informed decisions by providing honest assessments of their existing equipment and explaining all available options.
Signs you may need furnace replacement include:
- Frequent breakdowns requiring Emergency Heating service calls
- Rising energy bills despite normal usage patterns
- Uneven heating throughout your home
- Strange noises or unusual odors during operation
- Age-related wear on components that affects safety
The Air Zero Approach for Your Heating Needs
Homeowners throughout Largo and Pinellas County choose Air Zero because we provide straightforward solutions without unnecessary complications. We understand that heating system decisions affect your family's comfort and your household budget, so we take time to explain your options clearly and help you choose the right path forward.
Our approach focuses on:
- Upfront pricing with no hidden fees or surprise charges
- Industry-leading warranties that protect your investment
- Personalized service that treats every client with respect
- Bilingual communication for Spanish-speaking customers
- Same-day service availability for urgent heating needs

Why Choose Air Zero?
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You’ll always know the cost ahead of time—no games, no gimmicks, just fairness.
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From AC to heating, we keep your home comfortable year-round, rain or shine.
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Our technicians are trained, experienced, and committed to doing the job right.
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As a Florida-based business, we deliver personalized care with every visit.
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We show up when we say we will, ready to get the job done right the first time.
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We never upsell or push what you don’t need—just clear, honest solutions you can trust.
Veteran-Owned and Locally Trusted
As a veteran-owned business, we bring military values of integrity and reliability to every service call. Since 2008, we've built our reputation on honest workmanship and transparent communication with our neighbors in Largo and surrounding communities. We understand Florida's unique climate challenges and provide heating solutions that work effectively in our local environment.
Complete HVAC Services Under One Roof
Beyond furnace installation and replacement, we provide comprehensive HVAC Services to keep your entire home comfort system running smoothly. Our team handles everything from routine maintenance to complex system upgrades, giving you a single trusted source for all your heating and cooling needs.
Our additional services include:
- AC installation and AC replacement for complete comfort solutions
- Ductwork to improve airflow and system efficiency
- Heat pump installation and maintenance for year-round comfort
- Air quality services including filtration and humidity control
- Emergency HVAC response for urgent system failures


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Outstanding! Heidi R.
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Very Professional! Christine R.
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Great Customer Service! Donald S.
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Great Customer Service! Lucy F.
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Highly Recommend! Amy H.
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Fantastic! Chad B.
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Courteous & Professional! Taylor J.
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Superb! Paul J.
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Just Great! Charles G.
FAQs
How long does furnace installation typically take?
The timeline for a furnace installation or replacement can vary depending on the complexity of the job and whether new ductwork is required. For a standard replacement of an existing furnace, the process often takes one full day. A new installation in a property without existing heating infrastructure, which might involve installing or modifying air ducts, could take longer. We provide a clear timeline during your initial free estimate, keeping you informed every step of the way, aiming to minimize disruption to your comfort.
What size furnace do I need for my home?
Proper furnace sizing depends on your home's square footage, insulation levels, window efficiency, and local climate factors. We perform detailed load calculations to determine the right capacity for optimal comfort and efficiency.
Should I repair or replace my old furnace?
We recommend replacement when repair costs exceed 50% of a new system's value or when your furnace is over 15 years old and experiencing frequent problems. We provide honest assessments to help you make cost-effective decisions.
Do you handle permits and inspections?
Yes, we obtain necessary permits for furnace installations and coordinate required inspections with local authorities. This ensures your new system meets all safety codes and regulations.
What maintenance does my new furnace need?
New furnaces require annual professional maintenance to maintain warranty coverage and optimal performance. We offer maintenance programs that include filter changes, safety inspections, and efficiency tuning.
Trust Air Zero for Furnace Installation & Repair Solutions
When you require furnace installation or furnace replacement, Air Zero is here to provide responsive and reliable service. We bring clear communication, dependable workmanship, and a focus on your satisfaction to every project. Our goal is to ensure your indoor environment remains warm and comfortable, even during the cooler periods of the Florida season.
Take the next step toward a more comfortable and efficiently heated indoor environment. Fill out our online contact form or call us at (727) 594-7593 to get in touch.

If Air Zero kept your home comfortable and your experience stress-free, we’d be honored if you shared your feedback. Your 5-star review helps support our local team and lets others know they can count on us too!