How to Choose an HVAC Contractor
How to Choose an HVAC Contractor in Ottawa and Allegan County
Choosing an HVAC contractor is an important decision, as your furnace and air conditioner are two of the most expensive systems in your home. This guide will walk you through the red flags to avoid, a detailed process for picking the right partner, and some questions that you should ask before signing on the dotted line.
Creating a Strategy to Compare HVAC Contractors
Ideally, every contractor you hire will do a great job, but it doesn’t always work out that way. You might hire a painter who doesn’t apply an even coat, or a carpenter who mounts a shelf a little crooked. Those are annoying errors, but they are pretty easy to fix.
With HVAC projects, the stakes are higher. You need to get this one right from the start, as mistakes can be costly to correct, and may even pose a health risk to your family. So, we put together a guide on how to pick the right HVAC contractor for your job in Ottawa and Allegan County.
Why It’s Vital to Choose the Right Contractor
Too many homeowners in Ottawa and Allegan County overlook the importance of picking a good HVAC contractor. A lot of people just get a couple of quotes, pick the cheapest one, and move on. That might seem like the right move but it can be an expensive, and even dangerous, mistake.
First, improperly installed heating equipment can create a carbon monoxide risk in your home. Combustion gases need to be vented outdoors correctly so they don’t build up. In 2025, a couple living in Garfield, Minnesota experienced this firsthand when they were hospitalized after carbon monoxide levels in their home reached dangerous levels.
Aside from safety risks, there are long-term comfort and costs to be considered. A poorly done repair or improperly sized system can result in hundreds wasted on excess energy bills from the ZBPW. It can also lead to hot and cold spots throughout your home.
Another potential problem is selecting an HVAC company that doesn’t even exist in the first place. Google’s front page sometimes displays fake HVAC businesses and map listings. This is happening all over the country, so it’s best to play it safe and work with a verifiable local business that has an actual physical presence, like Mast Heating & Cooling.
You don’t have to wonder if we are real, because you can drive right by our location at 355 Royal Park Dr. in Zeeland and see our building for yourself.
HVAC Contractor Red Flags to Watch For
As you look for an HVAC contractor in Holland or Zeeland, it’s easy to be overwhelmed by the options. There are many businesses that would love to take on the job, but not all of them are qualified. You can quickly narrow down the field by using the points below.
- No license. If a contractor who wants to take on your project doesn’t have an active mechanical contractor’s license in the state of Michigan, just move on. It’s that simple. Don’t accept any excuses. A lack of licensing opens you up to risk.
- Replacement without a clear diagnosis. Be cautious if a contractor immediately recommends replacing your furnace or AC without explaining why. A trustworthy contractor should show you what they found, discuss options, and let you decide what makes the most sense.
- Pressure tactics. Don’t work with any HVAC contractor who puts pressure on you to act quickly or make a decision now. Watch out for anyone offering “today only” pricing, or something along those lines. Quality contractors don’t use these tactics and will give you the time necessary to make an informed decision.
- No written estimate. Make sure your contractor provides a written estimate for the work. If they only offer a quote over the phone but won’t write out a formal bid, that’s a sign that you should be looking elsewhere for service.
Step One: Determining What Category Your Job Is
How you work through the HVAC contractor selection process is determined in part by what kind of job is on the agenda. Not all projects deserve the same degree of research and company vetting, so thinking about scope is the best place to start.
Minor HVAC Repairs
If you only need something simple, like the replacement of a failed capacitor or old thermostat, not too much homework is required. You still want to make sure the contractor is licensed and insured, but there’s not much more to it than that.
Major HVAC Repairs
If a major component needs to be replaced, such as a compressor or heat exchanger, the job will be bigger and more expensive. In this case, you’ll want to spend more time looking at each contractor’s qualifications.
System Replacements
You could be spending $10,000 or more on a new HVAC system. So, a detailed review of all candidates is important. Factors that impact your final selection should include warranty coverage, company guarantees, years of experience, reputation in the market, and level of technician training.
Step Two: Pick Local Contractors to Compare
Compile a list of contractors who are based in and serve Ottawa and Allegan County. Make sure have been in business for at least a few years.
Working with a local company will ensure they are familiar with code requirements, the permitting offices, and the specific requirements of HVAC systems in your hometown.
Through some online research, you should have little trouble putting together a list of a few contenders that can move forward to the next steps.
Step Three: Look at Their Reviews
Reading reviews is a great way to narrow your list. Here are three guidelines to keep in mind while you browse customer feedback:
- Consistent volume over time. Don’t be fooled into choosing an HVAC contractor in Holland who has a bunch of fake reviews posted all at once to pad their profile. Instead, look for a volume of reviews that has been accumulated naturally over time. This points to a business that is active and providing consistent service.
- Check their responses to negative reviews. Even for the best HVAC contractor, a few negative reviews are likely. We’re just people, after all. When you do encounter a bad review, see how the company responds, or if they respond at all. A contractor that is proactive with responses and aims to find a satisfactory solution is one you want on your side.
- Look for patterns. Negative reviews become particularly concerning when the same issues come up over and over again. For example, if many customers complain about technicians not showing up for appointments or mention hidden charges on the final bill, those are points worth keeping in mind.
Step Four: Examine What Makes Them Unique
At this stage, you can start to zoom in on the characteristics that make each contractor unique and serve as strong selling points.
Warranty coverage is a big part of the conversation here. The protection you receive on the equipment will typically come from the manufacturer, but a good contractor provides guarantees on their labor. You may also want to think about how long the company has been in business, as staying power in this industry is closely related to quality work for customers.
This is also the time to consider any specialties that relate to your specific project. Are you looking for a geothermal system, a boiler, or marine HVAC work? Make sure the contractors that remain on your list offer what you need.
Step Five: Evaluate Customer Service and Communication
It’s now time to start contacting the contractors that have made it this far. Not only are you going to reach out to get some basic information and ask to schedule an estimate, but you will be using this time to further evaluate which contractor you want to hire.
The key here is to look for indicators of the quality of their customer service. Do they answer when you call? If not, do they get back to you quickly and seem ready to help? How they treat you at this initial stage is a good indication of how you will be treated throughout the project. A company that is hard to get in contact with at the start is one of the biggest HVAC contractor red flags.
Use this time to see how well they communicate with their customers. Ideally, they’ll explain things to you in plain language that is easy to understand for someone with no HVAC training. And, when the time comes for them to visit your home in Holland or Zeeland, make sure they show up on time and are ready to get started.
Step Six: Analyze the Written Assessments
When the estimating process is completed, lay the quotes side by side and compare them. There should be a few key components that are present in all of the estimates. If any of the points below are missing, you should probably rule out that contractor.
- The specific equipment being installed or repaired, including brand and model
- The scope of the work in plain language
- A timeline for completion of the project
- Warranty terms
Look for specificity throughout. A good HVAC contractor should be happy to take the time to give you a thoughtful explanation.
Step Seven: Choose Your Contractor
You should be in a position to choose your HVAC contractor at this point. You’ve screened out the unlicensed, unqualified contractors early in the process and have narrowed things down by checking reviews, looking at specialties, and getting multiple quotes.
Remember, you don’t want to immediately pick the lowest quote and move forward. Read the whole estimate, ask questions, and get a clear picture of what each contractor is offering. With that done, you’ll feel confident in your choice and the project will be off to a great start.
Questions They Need to Answer Before You Make a Decision
One of the easiest ways to compare HVAC contractors is to ask questions and look at their answers side-by-side. The eleven questions listed below are all helpful in understanding who you are working with and how they will approach your project. Ask most or all of them to get a clear picture and your final decision will start to come into focus.
- Are you licensed and what is your license number in the state of Michigan?
- Do you have active liability insurance?
- Do you know how to work on variable speed systems or smart thermostats?
- Will you provide a written estimate before work begins?
- Are you familiar with my specific HVAC brand and system type?
- Who will actually perform the work? Is it a subcontractor?
- How long have you been doing business in this area?
- Who handles the permitting for the job, and are the permits included in the quote?
- What’s your estimated timeline to complete the project?
- How do you handle unexpected mid-job changes?
- What sets you apart from other contractors in the area?
- Do you offer financing?
Mast Heating & Cooling is the Easy Choice
Don’t be overwhelmed by the prospect of hiring an HVAC contractor to work in your home. Sure, a little time and effort are needed to research the options, but you’ll have your list narrowed down to the true contenders before long.
Fortunately, you’ve already found a leading HVAC contractor that serves Ottawa and Allegan County, so you are off to a great start. Mast Heating & Cooling has a history in Holland and Zeeland dating back to 1956. With us, you’re always in good hands.
Frequently Asked Questions
Should I always get multiple estimates?
For a minor repair, getting a single estimate from a proven contractor like Mast should be sufficient. However, if you need to have a major repair completed, or would like a new system installed, get at least two quotes. Multiple estimates will give you a better understanding of what fair pricing is for the job, and which HVAC contractor offers the best blend of value and experience.
What should be included in an HVAC estimate?
A good estimate should include the scope of work, total price, equipment or parts involved, warranty coverage, permit responsibility, and expected timeline. The contractor should also explain how any changes to the original scope would affect the price. Flat-rate estimates are not a problem as long as you understand what is and is not included.
What qualifications should a company in Ottawa and Allegan County have?
At a minimum, the contractor should have a valid mechanical contractor’s license in the state of Michigan. What they hold should also be applicable to the work you need. Simply move on if any contractor you are considering doesn’t hold an active license in good standing. You can search here to confirm the license status of any contractor.
Is the cheapest HVAC contractor the best choice?
Not always. You want to find a fair price for the HVAC project, but you also need to be sure no corners are cut on things like permitting or quality materials. A suspiciously low price should cause you to think twice. Compare several bids for any big HVAC job and select the one that provides the best overall value, not just the lowest upfront cost.
How important are online reviews when picking a company?
Online reviews can provide helpful insight into how a company performs, but it’s important to read them carefully. Don’t put too much emphasis on any single review, but rather look for patterns across many reviews over a period of years. If customers are consistently satisfied with the service and performance offered by an HVAC contractor, you will likely be in good hands.
Why is hiring local a good idea?
Local HVAC contractors value the reputation they have built in the community and will work hard to protect it. Also, a local company is going to be very familiar with local code and permitting requirements. At Mast, we take great pride in the reputation we have built here in Ottawa and Allegan County over the last 70 years, and see every new project as an opportunity to build a relationship.
Should I trust a company that gives estimates over the phone?
There is nothing wrong with providing a rough ballpark price over the phone just to give the customer an idea of what they are facing. However, that should not take the place of an official, written estimate that is provided after an in-person visit. Only after visiting your home and evaluating the situation can a professional HVAC contractor give you an honest, accurate quote for the work.
What’s the most important question to ask before hiring?
There are two questions that you should always ask before committing to any HVAC contractor. First, you need to make sure they are licensed. Also, confirm that they are willing to provide you with a detailed written estimate outlining their proposal for the job. Those two questions will help you quickly zero in on contractors who are serious about earning your trust.