Frequently Asked Questions

We know HVAC issues can be confusing, especially when you're trying to decide whether your system needs a repair or replacement. Below are answers to some of the questions we hear most often from homeowners across the Chicago area.

If you can't find the answer you're looking for, our friendly team is only a phone call away.

General Questions

Do you always recommend repairing a system before replacing it?

Whenever it’s practical and cost effective, yes. Our first priority is always to diagnose the problem and determine whether a repair is the best solution. If replacement is the better long term option, we’ll explain why and provide honest recommendations without any pressure.

Do you provide free estimates?

Yes. We provide free estimates for new HVAC system installations and replacements. If you’re unsure what’s wrong with your existing system, we’ll carry out a professional diagnostic inspection before discussing the best options available.

What areas do you serve?

Duct Worth proudly serves homeowners throughout and beyond the Chicago area. If you’re unsure whether we cover your location, simply get in touch and we’ll be happy to help.

Do you work on all makes and models?

Yes. Our experienced technicians work on a wide range of residential heating and cooling systems from many leading manufacturers.

How quickly can you schedule service?

We always aim to schedule appointments as quickly as possible. Availability varies depending on demand, but we’ll work with you to find the earliest convenient appointment and restore your comfort as soon as we can.

Do you install smart thermostats?

Yes. We install smart thermostats that give you greater control over your home’s heating and cooling. Smart thermostats can improve comfort, increase energy efficiency, and allow you to control your system remotely using your smartphone or tablet.

Heating & Cooling

Why isn't my air conditioner cooling properly?

Poor cooling performance can be caused by several issues including dirty filters, thermostat problems, low refrigerant levels, blocked airflow, or faulty components. We carry out a full diagnostic inspection to identify the exact cause before recommending any repairs.

Why won't my furnace turn on?

A heating system may stop working for several reasons, including thermostat faults, ignition problems, electrical issues, or worn components. We’ll identify the issue and explain the available repair options clearly before any work begins.

How long should an HVAC system last?

Most well maintained HVAC systems last between 15 and 20 years. Regular maintenance and prompt repairs can help extend the lifespan of your equipment and improve overall efficiency.

How often should I schedule HVAC maintenance?

We recommend scheduling professional HVAC maintenance at least once a year. Regular servicing helps improve efficiency, reduce the risk of breakdowns, extend the lifespan of your system, and keep your heating and cooling running at their best.

How long does a furnace or AC installation take?

Most residential furnace and air conditioning installations can be completed within a single day. Larger or more complex installations may take longer, but we’ll always provide a clear timeline before work begins.

Pricing & Repairs

How much will my repair cost?

Every repair is different, which is why we always diagnose the problem first. Once we’ve identified the issue, we’ll explain the available options and provide clear, transparent pricing before any work begins.

Will you explain the problem before starting work?

Absolutely. We believe homeowners should understand exactly what’s wrong with their HVAC system. We’ll explain our findings in plain language and answer any questions before carrying out repairs.

Are there any hidden charges?

No. We believe in honest, transparent pricing. You’ll always know what work is recommended and what it will cost before we begin.

What payment methods do you accept?

We accept a variety of convenient payment methods to make paying for your HVAC service as simple as possible. If you have any questions about payment options, feel free to contact us before your appointment.

Maintenance & Installation

Is regular HVAC maintenance really worth it?

Yes. Preventive maintenance helps improve efficiency, reduce unexpected breakdowns, lower energy bills, and extend the life of your heating and cooling equipment.

When should I replace my HVAC system?

Replacement may be the better option if your system is nearing the end of its lifespan, requires frequent costly repairs, or is no longer operating efficiently. We’ll help you compare repair and replacement options so you can make the right decision for your home and budget.

Do you install new HVAC systems?

Yes. We supply and install high quality heating and cooling systems that are professionally selected to suit your property’s size, comfort needs, and budget.

Do you service all HVAC brands?

Yes. Our experienced technicians service and repair most major heating and air conditioning brands. Whatever system you have, we’ll diagnose the issue accurately and recommend the most practical solution.

Should I repair or replace my HVAC system?

Every situation is different. Our approach is to diagnose the problem first and recommend the most cost effective solution. If your system can be repaired safely and reliably, we’ll tell you. If replacement offers better long term value, we’ll explain your options clearly without any pressure.

Still Have a Question?

If you haven’t found the answer you’re looking for, we’d be happy to help. Whether you need advice, want to book a repair, or would like a free estimate for a new system, our team is here to provide honest guidance and reliable service.

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