Modern Comfort. Enhanced Efficiency. Reliable Performance.
A full HVAC system replacement can transform your home or business, providing cutting-edge technology, improved energy efficiency, and consistent comfort. Whether your current system is outdated, inefficient, or unable to meet your needs, Unity HVAC specializes in comprehensive system replacement services tailored to your property’s unique requirements.
Replacing an entire HVAC system involves upgrading components like furnaces, air conditioners, heat pumps, ductwork, and controls, requiring expert planning and execution. Issues like frequent breakdowns, high energy bills, or inconsistent temperatures often signal the need for a full replacement. Many property owners are unsure when it’s time to upgrade or how to select the right system.
Unity HVAC is your expert solution for full system replacements! Our certified technicians provide customized, high-quality services, from detailed assessments and system design to seamless installations. We understand your comfort and efficiency needs and deliver solutions that meet them.
Every property has unique heating, cooling, and airflow demands based on size, layout, insulation, and usage patterns. Our personalized approach ensures modern, cost-effective systems that maximize comfort, reduce energy costs, and enhance indoor air quality.
Our Complete System Replacement Services
At Unity HVAC, we offer end-to-end system replacement services designed to deliver peak performance, energy efficiency, and long-term reliability. From system selection to installation and post-installation support, our expert team ensures a hassle-free upgrade tailored to your needs.
Full HVAC System Replacement
System Design and Sizing
Ductwork Replacement
Smart Thermostat Integration
Energy Efficiency Upgrades
Indoor Air Quality Solutions
System Testing and Commissioning
Warranty and Maintenance Plans
Professional Full System Replacement
Replacing your HVAC system is a significant investment in your property’s comfort and efficiency. Unity HVAC provides expert full system replacement services, ensuring a seamless transition to a modern, high-performance system. Our skilled team manages every step, from design to installation, for optimal results.
Full system replacement requires expertise in system sizing, equipment selection, ductwork integration, and smart controls. Our certified technicians bring extensive experience and ongoing training to every project, ensuring your new system is installed correctly and performs at its best.
We partner with top-rated manufacturers to offer high-efficiency HVAC systems, including furnaces, air conditioners, heat pumps, and ductless options, that reduce energy costs and enhance comfort. Our team evaluates your property and needs to recommend the ideal system configuration.
Our Detailed Replacement Process:
Comprehensive property assessment and heat load calculation
Customized system selection and design consultation
Removal and disposal of old HVAC equipment
Precise installation of new system components
Ductwork upgrades or replacement as needed
Smart thermostat and control system integration
System commissioning, testing, and optimization
Complete operation training and ongoing support
Before: the old oil boiler this home was living with.
When to Consider Full System Replacement
Knowing when to replace your HVAC system can save you money and improve comfort. Our team helps you evaluate your current system’s performance and provides expert recommendations for replacement when repairs are no longer cost-effective.
Key Indicators Your HVAC System Needs Replacement:
System Age
Systems over 10-15 years old often lose efficiency and struggle to meet modern comfort demands, making replacement a better option.
Frequent Repairs
Multiple repair calls or rising maintenance costs annually indicate your system is nearing the end of its lifespan.
High Energy Bills
Increasing energy costs despite normal usage suggest an inefficient system that could benefit from a modern, high-efficiency replacement.
Inconsistent Comfort
Uneven temperatures or difficulty maintaining set points may indicate an outdated or undersized system requiring replacement.
Outdated Technology
Older systems lack modern features like variable-speed motors, smart controls, or eco-friendly refrigerants available in new systems.
Poor Air Quality
Persistent dust, allergens, or odors despite maintenance may signal the need for a new system with advanced IAQ features.
After: same basement, new wall-hung condensing boiler and fresh copper.
Furnace replacement
Most furnace replacement calls in the Lehigh Valley start the same way: a gas or oil furnace from the 1990s or 2000s that has been repaired twice in two winters, or one that quit on the first cold night. Replacing it is not a box swap. The new furnace is sized from a room-by-room load calculation on the actual house at the local winter design temperature, and on most older houses that comes out smaller than the nameplate on the unit coming out, which ran oversized for decades.
Repair or replace. A younger furnace with a failed igniter, blower motor or control board is a repair. A cracked heat exchanger, a second major failure on a 15 to 20 year old unit, or an oil furnace that cannot pass a combustion test is a replacement. I say which it is after the diagnostic, with the numbers.
What the replacement visit covers. Load calculation, duct static pressure measured on the running system, venting and combustion air checked against the new unit, the matched indoor coil where central air rides on the furnace, a condensate drain for a condensing model, thermostat, permit and a startup combustion test.
Gas, propane and oil. Gas furnaces go in like for like or move to condensing efficiency, which matters because federal rules move nearly all new gas furnaces to condensing models at the end of 2028. Oil furnaces are replaced with a new oil unit or, where the numbers favor it, a heat pump with the oil kept as backup; the Oil Savings Estimator shows that math for your house.
A heat pump instead of a furnace. For electric-heat and propane homes a cold-climate heat pump often costs less to run than the furnace it replaces, and dual fuel, a heat pump paired with a gas furnace, is the other common answer. Both are covered on the heat pump page.
Furnace replacement runs out of the shop in Macungie across Lehigh and Northampton counties and upper Bucks. The detail for Allentown rowhomes is under furnace replacement in Allentown, and gas and propane equipment on the gas furnace page.
Benefits of Full System Replacement
Upgrading to a new HVAC system offers significant advantages, from improved efficiency to enhanced comfort. Unity HVAC ensures your new system delivers long-term value through expert installation and tailored solutions.
Key Benefits of a New HVAC System:
Improved energy efficiency
Lower utility costs
Enhanced comfort control
Advanced smart technology
Better indoor air quality
Reduced repair frequency
Eco-friendly operation
Extended system lifespan
Quieter performance
Why Choose Unity HVAC for Full System Replacement?
Unity HVAC is committed to delivering exceptional full system replacement services with a focus on precision installation, reliable performance, and customer satisfaction. Our expertise in HVAC technology and personalized approach make us the trusted choice for your upgrade needs.
✓ HVAC Replacement Experts
Our certified technicians specialize in full system replacements, ensuring expert service for all HVAC types, including furnaces, heat pumps, and ductless systems.
✓ Comprehensive Assessments
We provide thorough evaluations to recommend the best system for your property, ensuring optimal sizing and performance.
✓ Transparent Fair Pricing
Our detailed, upfront estimates eliminate surprises, providing affordable, high-quality service tailored to your budget and comfort needs.
✓ Premium Brand Partners
We work with leading HVAC manufacturers, offering high-efficiency systems backed by comprehensive warranties for your peace of mind.
✓ Customized Comfort Solutions
We design tailored HVAC systems based on your property’s layout and needs, ensuring maximum efficiency and comfort.
✓ Ongoing Support
Our team provides post-installation support, including maintenance plans and 24/7 emergency services, to keep your system running smoothly.
Frequently Asked Questions About Full System Replacement
When is it time to replace my HVAC system?
Replacement is recommended for systems over 10-15 years old, those requiring frequent repairs, or those causing high energy bills or inconsistent comfort.
How long does a full system replacement take?
Most replacements take 1-3 days, depending on system complexity and ductwork needs. We ensure minimal disruption during installation.
Can a new system reduce energy costs?
Yes, modern HVAC systems with high-efficiency ratings can reduce energy costs by 20-40% compared to older systems.
What types of systems can I choose from?
Options include furnaces, heat pumps, air conditioners, ductless mini-splits, and hybrid systems. We help you select the best fit for your needs.
Will a new system improve indoor air quality?
Yes, new systems with advanced filtration and IAQ features can significantly reduce dust, allergens, and pollutants for a healthier environment.
Contact Unity HVAC Today for Expert Full System Replacement
Don’t let an outdated HVAC system compromise your comfort and efficiency. Whether you need a complete system replacement, custom design, or expert guidance, Unity HVAC delivers reliable solutions tailored to your needs.
Our expertise in HVAC technology, commitment to quality workmanship, and focus on customer satisfaction make us the premier choice for system upgrades. Contact us today for modern comfort and efficiency.
