Questions to Ask Before Accepting an HVAC Estimate

Knowing which questions to ask before accepting an HVAC estimate can save you money and stress. A new furnace or air conditioner is a big purchase for any Denver Metro homeowner. The price on the paper is only part of the story. The right questions help you see what you are really paying for.

Here are the questions to ask, along with what a good answer looks like.

Is the HVAC Contractor Licensed and Insured?

This is the first thing to check. A licensed contractor has met the rules for your city, and insurance protects you if something goes wrong.

In Colorado, many HVAC licensing rules are set by the city or county. Denver, Englewood, and other Metro cities can each have their own rules. Ask which license the company holds for your area, then ask to see it.

Also ask about:

• General liability insurance, which covers damage to your home
• Workers’ compensation insurance, which covers the crew if someone gets hurt
• Proof of both, in writing

If a company dodges these questions, move on.

Does the Estimate Include a Home Visit and Measurements?

A real estimate takes more than a phone call. The technician should walk through your home, check your current system, and look at your ducts.

Ask if they will do a load calculation. This is a math check that finds the right size system for your home. Many pros use a method called Manual J for this.

Size matters a lot. A system that is too big turns on and off too often. A system that is too small runs nonstop and never keeps up. Both waste money and wear out parts faster.

What Brand and Model Are You Quoting?

A line that says “new furnace” is not enough. You want the exact brand, model number, and size listed on the estimate.

Ask these follow-up questions:

• What is the efficiency rating?
• Is this a single-stage, two-stage, or variable-speed system?
• Why did you pick this model for my home?

A good contractor will explain their choice in plain words. They should also offer a few options at different price points.

What Is the Efficiency Rating?

Efficiency ratings tell you how much energy a system wastes. Higher numbers usually mean lower bills.

• Furnaces use AFUE. An AFUE of 95% means about 95 cents of every fuel dollar becomes heat.
• Air conditioners and heat pumps use SEER2. A higher number means less power used to cool your home.

According to ENERGY STAR, heating and cooling make up about half of the energy use in a typical home. That means a more efficient system can add up to real savings over the years.

Ask for the estimated yearly savings, then ask how they figured it out. A higher-efficiency system costs more up front, so you want to know how long it takes to pay for itself.

Will the System Work Well at Our Altitude?

This question is important in the Denver area. Englewood sits about 5,300 feet above sea level. Thinner air changes how gas furnaces burn fuel.

Ask the contractor how they adjust for altitude. A pro who works in Colorado every day will know this right away. The furnace should be set up for high altitude so it runs safely and gives you the heat you paid for.

What Is Included in the Total Price?

Two estimates can look very different because they cover different work. Ask for a line-by-line price. Make sure you know if these are included:

• The equipment itself
• Labor and installation
• Permits and inspection fees
• Removal and disposal of the old system
• New thermostat
• Duct repairs or changes
• Refrigerant lines, pads, or venting
• Cleanup after the job

Ask about extra costs too. Say, “What could change this price after you start?” An honest company will tell you about possible surprises up front.

Do You Pull the Permits?

Most furnace and AC replacements in the Denver area need a permit. Permits make sure a city inspector checks the work for safety.

Ask who pulls the permit. The contractor should handle it. Be careful if someone offers to skip it to save money. Skipped permits can cause trouble when you sell your home or file an insurance claim.

What About My Ducts?

Your ducts carry the air through your home. If they leak, you pay to heat and cool the space around them.

The U.S. Department of Energy says leaky ducts can waste a large part of the air your system makes. ENERGY STAR says a typical home can lose 20 to 30 percent of that air through leaks and poor connections.

Ask if the technician checked your ducts. Ask if sealing or repairs are needed. A new system on bad ducts will not perform as well as it should.

What Warranties Come With the Job?

There are two kinds of warranties. You should ask about both.

Manufacturer Warranty

This covers the equipment. Many brands offer a parts warranty of up to 10 years, but some require you to register the product first. Ask if the contractor does the registration for you.

Labor Warranty

This covers the installation work. It is set by the contractor, so it can be very different from one company to the next. Ask how long it lasts and what it covers.

Get all warranty details in writing.

How Long Will the Job Take?

Most furnace or AC replacements take one to two days. Bigger jobs, like new ductwork, can take longer.

Ask for a start date and a finish date. Also ask what happens if the weather or a parts delay gets in the way. This matters most in the middle of a Colorado winter, when you need heat fast.

Are There Rebates or Financing Options?

Many homeowners miss out on savings because they never ask. Utility companies and manufacturers sometimes offer rebates on high-efficiency equipment. Ask if the contractor knows about current offers in your area, including rebates from your local utility.

You can also ask about financing. If you choose a payment plan, ask these questions:

• What is the interest rate?
• How long is the term?
• Are there fees for paying it off early?

Can You Share Recent Reviews or References?

Good companies are proud of their work. Ask for reviews, photos of past jobs, or the names of customers nearby.

Check Google reviews and read both the good and bad ones. Look at how the company replies when something goes wrong. That tells you a lot about how they will treat you.

How Long Is This Estimate Good For?

Some estimates expire in 30 days. Others change when equipment prices go up. Ask how long the price is held so you have time to compare.

Be careful with high-pressure sales. If someone says the price is only good today, take a breath. A fair deal will still be fair tomorrow.

What Is the Maintenance Plan After Installation?

Even a brand-new system needs a yearly tune-up. Ask what the contractor offers after the job is done.

Many companies have maintenance plans that include twice-a-year visits, one for heating and one for cooling. Regular care helps your system last longer. Most furnaces and air conditioners last about 15 to 20 years with good care.

Also ask who you call if something breaks at night or on a weekend. Fast emergency service matters when it is 10 degrees outside.

Why You Should Get More Than One Estimate

It helps to get at least two or three estimates. You can compare more than just price. Look at the equipment, the work included, the warranty, and how the team treated you.

The lowest bid is not always the best one. A very low price can mean cheaper parts, skipped steps, or missing items. Pick the company that is clear, honest, and willing to answer every question.

Taking time to ask these questions puts you in control of the decision. If you live in Englewood or anywhere in the Denver Metro area and want a clear, no-pressure quote, you can request an HVAC estimate from David’s HVAC. Our team will walk you through every line, answer your questions, and help you choose the right system for your home and budget.