Air Purification

Air Purification in Bay City

Practical Air Quality Solutions Backed by Local Experience

Cleaner indoor air starts with understanding how filtration, humidity, ventilation, and air distribution work together in your property. Custom Engineering evaluates these factors before recommending equipment suited to your space and existing HVAC system.

We’re a locally owned HVAC company serving the Bay City area since 1984. We provide residential and commercial customers with indoor air quality and duct services, including air filtration products and ultraviolet lights.

Request your free consultation and installation estimate by calling (989) 474-2870. We’ll explain your options without pressure.

Room Air Purifiers & HVAC-Integrated Equipment

Dust, pet dander, odors, and airborne particles may require different indoor air quality approaches. Identifying the primary concern helps narrow the equipment categories worth considering.

Portable air purifiers treat individual rooms. HVAC-integrated equipment works with a heating and cooling system, so its suitability depends on the system’s configuration and ductwork compatibility.

Property size and airflow also matter. A small room with a specific concern may warrant a room-based approach, while a property with shared air handling may merit central equipment. The way air moves between rooms can influence equipment placement and selection.

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Custom Comfort, Professional Care

What Makes Us Different?

Clear Air Quality Recommendations Without Pressure

Our licensed and insured HVAC professionals explain what they find and how each relevant option works. We listen to your concerns, assess the property, and recommend equipment based on the evaluation.

Air quality equipment also requires care after installation. We offer preventative maintenance programs and extended warranty options for equipment and labor protection. We can review coverage details before you make a decision.

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Convenient Financing Options

We make HVAC services manageable with convenient financing options. Subject to credit approval.
Preventative Maintenance Plans
Keep your system in perfect shape all year round with our programs.
Locally Owned & Operated
As a proud Michigan company, we deliver honest, dependable HVAC services backed by local expertise and care.

What to Expect from an Air Quality Evaluation in Bay City

Our free in-home consultation examines four connected parts of indoor air quality: filtration, humidity, ventilation, and air distribution. This evaluation gives us practical information about the property before we recommend equipment.

We assess residential and commercial properties according to their layouts, duct designs, and HVAC configurations rather than relying on preset equipment packages.

For new system installations, we provide a free estimate. You can review the proposed scope and ask questions before deciding how to proceed.

Call (989) 474-2870 to schedule your air purification consultation with Custom Engineering.

How Air Purification Technologies Work

Air purification technologies address air concerns in different ways. Some capture particles, while others treat microorganisms or use an electrical charge to affect particles moving through the air.

Ultraviolet Treatment
Ultraviolet germicidal irradiation, often called UVGI, uses ultraviolet lamps designed to deactivate airborne or surface microorganisms such as viruses, bacteria, and fungal spores. We offer ultraviolet lights among our air quality services.

Particle Filtration
High-efficiency filters and high-efficiency particulate air filters use physical media to capture particles. Performance, airflow requirements, and compatibility differ, so filtration should be considered in relation to the HVAC system rather than by filter rating alone.

Ionization & Electronic Collection
Ionization technology charges airborne particles so they can be collected or settle from the air stream. Electronic air cleaners use electrically charged components to capture particles moving through the equipment. These categories differ from ultraviolet treatment and filter-based particle capture.

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Trusted by homeowners and Businesses Since 1984

At Custom Engineering, your satisfaction is our priority! See for yourself what our customers have to say about working with us.

"10/10 Service!"
Had Customer Engineering come out to my restaurant to diagnose my furnace and walk-in freezer. Brandon and Skylar, the techs, were amazing. Extremely friendly and knowledgeable. I will be using them for all my HVAC needs moving forward.

- Taylor A.
"I don't know what I do without this company!"
Chaz did an amazing job - straightforward and very helpful. Jason and Trey set up the furnace a week ago, and it runs amazingly! It's nice to stay warm again. They just repaired and replaced my bathroom exhaust fan, too. Thank you again!

- Cesily W.
"By far the most professional and reliable company."
Every employee I have had the pleasure of dealing with has been top-notch. Today's visit by Tyler for annual maintenance was great. He was punctual, friendly, and professional.

- Michelle G.
"Custom Engineering took care of us right away!"
Our initial call was after hours and not an emergency. We received a call first thing the next morning, and they came out within a few hours. Both gentlemen were very professional and knowledgeable, and were able to repair our furnace right then and there.

- Reid K.
"So grateful to them!"
I needed help, and Custom Engineering got to me fast and saved the day. Nick, the technician, was great. He was personable and intelligent and he got my repair done super fast. Thanks, Custom Engineering!

- James T.
"They really came through!"
Quick, efficient, and friendly service from both office staff and techs. Fair pricing. Grateful for their help on a freezing day when our furnace failed. Feared the worst. Highly recommend this company!

- Tammie S.
"They have been an excellent company to work with."
Always courteous & competent. They installed a new furnace, AC, garage gas heater, and ran a gas line into our laundry room. They stayed on the job until all was completed and we were extremely satisfied.

- Terrance V.
"They did a great job!"
We went through custom engineering for replacing our furnace and air conditioner. They went above and beyond to do what is best for our home. The whole team was respectful and informative. They answered any questions we had!

- Allison E.

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Plan Your Air Purification Consultation

A consultation gives you an opportunity to discuss your air concerns and receive a free estimate for a new system installation. Financing is available through Wells Fargo for 72 months, subject to credit approval, and through Michigan Saves.

Our contact form provides a convenient way to share information about your property. We’ll explain our recommendations and available protection options so you can make an informed choice.

Factors That Shape Equipment Selection & Care

The right approach depends on the air concern, property layout, existing HVAC configuration, and air distribution. A recommendation should account for how the building uses and moves conditioned air.

HVAC-integrated equipment may require an assessment of:

Available installation space
Electrical requirements
Ductwork configuration

Ongoing care is another practical consideration. Filters have replacement requirements, while ultraviolet lamps require periodic replacement or service. Reviewing these needs before installation makes equipment categories easier to compare and helps you plan for preventative maintenance.

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Let's Get Started

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