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Crystal HVAC Services

5-Star HVAC Service Company in Crystal, MN

When it concerns the comfort of your home, we recognize the importance of reliable solutions. That’s why you require the most skilled HVAC professionals in Crystal, and that’s precisely what you’ll encounter at Thelen Mechanical. Our team fully understands the frustration that can arise when your HVAC system misbehaves, and we’re unwavering in our commitment to maintaining your year-round comfort in your residence.

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    4.9 Stars on Google

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    Top Quality HVAC, Plumbing, & Drain Services

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    Speedy Turnaround Times

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Quality is Non-Negotiable

Here at Thelen Mechanical, we stand firm in our belief that our clients deserve nothing less than the best when it comes to HVAC services. We take immense pride in our unwavering commitment to delivering exceptional service. Our team of experts is wholeheartedly dedicated to surpassing your expectations.

What truly distinguishes us is our comprehensive expertise that spans across various leading HVAC product brands. This means that, regardless of the make or model of your system, we are fully prepared to offer top-tier service. Armed with cutting-edge tools and an extensive inventory of spare parts, we’re well-equipped to handle any repair job with efficiency and effectiveness.

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What We Do

View the wide range of top-tier services we offer folks in the Twin Cities and North West Metro area.

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5 Signs Your HVAC System Needs Some TLC


Alright, let’s have a chat about that vague box of air we call our HVAC system. You know, the one that keeps us warm and toasty in the winter and chill in the summer? It’s easy to take it for granted until it starts acting up. So, how can you tell when it’s time to give it some love?

Here are five telltale signs:

1. Weird Noises

Your HVAC system isn’t auditioning for America’s Got Talent. If it suddenly starts making strange and noisy sounds like hissing, banging, clanking, or anything you’d expect in a horror movie, that’s a clear sign that something’s off. It might be as simple as a loose screw or a worn-out belt, but it could also be something more serious. Don’t let it turn your home into a concert hall; call in a pro to check it out.

2. Sky-High Energy Bills

Have you noticed your monthly energy bill climbing faster than a squirrel up a tree? If your HVAC system is running inefficiently, it could be guzzling more energy than it should. This can be due to clogged filters, a wonky thermostat, or worn-out parts. An HVAC technician can work their magic and get your system running efficiently again. That means saving money and helping the planet – a double win!

3. Rooms Playing Temperature Roulette

Ever feel like you’re in a game of “guess the temperature” in your own home? One room is like a freezer while the next could double as a sauna. Uneven heating or cooling is a clear sign that something’s up with your HVAC system. It could be ductwork issues, a misbehaving blower motor, or even a sneaky refrigerant leak in your air conditioner. Good news: most of these issues are fixable by a professional.

4. Air Quality That’s a Snooze Fest

If you’ve been sneezing, coughing, or feeling under the weather more often lately, your HVAC system might be the culprit. Poor indoor air quality can be due to dirty filters, mold lurking in your ducts, or a cranky ventilation system. Regular maintenance and cleaning can work wonders for your air quality, so don’t let your HVAC system turn your home into a health hazard.

5. Your HVAC System Can’t Make Up Its Mind

Is your HVAC system acting like it’s in a hurry to set a new world record for the fastest on-off cycle? If it’s constantly starting and stopping without reaching the temperature you set, it’s trying to tell you something’s not right. It could be a thermostat hiccup or something fancier like a refrigerant leak. Either way, it’s best to let a pro take a look to avoid more damage.

There’s no question that your HVAC system works hard to keep you comfy year-round. So when it starts giving you these signals, it’s time to show it some love. Don’t wait until it’s on its last legs; schedule regular maintenance and be on the lookout for these signs. Your HVAC system will thank you by keeping your home cozy and your energy bills in check.

Plumber points out pipe issue to homeowner

This company is AMAZING. They came out to repair our furnace, and unfortunately found a critical safety issue which required immediate same day replacement. The tech explained the issue simply and in a way that I could understand. They were also extremely gracious about working…



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I was very satisfied with my service today. I was without heat and all inquiries I called was out two days. Thelen mechanical was able to come out that day and had my furnace up and running with in a few hours.

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Calvin B.

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Couldn’t of asked for a better experience working with Taylor and the whole team at Thelen Mechanical. We were in a emergency situation and they went above and beyond to get our new furnace installed the very next day. Would 100% recommend them.

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Trevor C.

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See Why Our Customers Love Us

We know we're the best at bringing top-notch service to your doorstep, but we don't expect you to just take our word for it. Check out our reviews to find out why our customers keep coming back.

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Working With Us Is Easy!

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Step 1

Connect With Us!

Give us a call or fill out a form and we’ll figure out a time to schedule an inspection.

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Step 2

Get a Free Inspection

Get your situation assessed and problem diagnosed by a pro.

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Step 3

Put it on The Books

Schedule the work that needs to be done and get the go-ahead from you!

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Step 4

Let’s Shake on It

We’ll work together to figure out the best time to start your project!

Collaborate with the Premier HVAC Company in Crystal

Are you ready to experience the impact that Thelen Mechanical can make on your home’s HVAC needs? There’s no need to endure blistering summers or chilly winters – we’re here for you with dependable, swift technicians and unrivaled customer support.

Reach out to the top HVAC professionals in Crystal today and let us become your trusted allies in heating, ventilation, and air conditioning. Your comfort is our paramount concern, and we’re enthusiastic about demonstrating just how much more comfortable it can be.

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Got Questions? We've Got Answers!

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Are you licensed and insured?

Yes! All of our contractors at Thelen Mechanical are licensed and insured in the state of Minnesota. We value your peace of mind and the safety and integrity of our employees.

Do you offer financing?

HVAC and plumbing issues never happen at convenient times, do they? We offer financing with both Synchrony Bank and Service Finance with convenient monthly payment options.

Do you offer free inspections?

We are happy to offer complimentary consultations to our customers.

Does my maintenance plan apply to emergencies?

You receive a discount on emergency services as a maintenance plan member.

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