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HVAC Services

Heating and AC Repair in Longmont, CO

Professional. Friendly. Always To The T.

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Contact Us!

Call us now or book online!

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When your heating and cooling system acts up, you want a local Longmont HVAC team that delivers top quality service. That’s exactly what we do at To The T Plumbing, Heating & Air. We’ve been helping Longmont and the surrounding areas with heating, cooling, and indoor comfort since 2005.

We work on every type of HVAC system—from central air and furnaces to heat pumps and ductless units. We give you complete peace of mind that your home is in good hands.

We’re here for you 24/7 with emergency HVAC repair when your heat or air conditioning system fails at the worst possible time.

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5-STAR SERVICE

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Why Longmont Chooses To The T

With Longmont HVAC companies, you have options—but here’s why your neighbors call us first:

- Family-owned, local, and backed by years of experience
- A+ BBB rated & 4.9★ Google reviews for outstanding customer service
- Friendly techs who love pets (and coffee)
- Transparent pricing—always upfront, never pushy
- Financing & Club Membership Plans available
- 24/7 emergency service for any HVAC issue
- We treat your home like it’s our own—clean floors, no mess, and we explain every step before we start

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Northern Colorado's Most Trusted HVAC Company

We serve residents and commercial clients in Longmont, Denver, Thornton, and the surrounding areas.

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What Longmont Customers Are Saying

"They were professional, friendly, and fast! Got our AC fixed the same day we called."

Brighton, CO Homeowner

"Josh explained everything clearly, gave us fair options, and had the heat working in no time. Highly recommend!"

Local Review

"Super knowledgeable crew, and I love that they don’t try to upsell you things you don’t need."

Thornton, CO Customer

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Air Conditioning Repair in Longmont, CO

Cool comfort without the wait.

Our air conditioning service Longmont, CO services keep homes cool all summer.

Services include:

- AC troubleshooting & repairs for any air conditioning system
- Preventative tune-ups, seasonal maintenance & air filters replacement
- Emergency cooling service—available 24/7
- Thermostat repairs & replacements

We’ve got you covered with Longmont air conditioning help that’s dependable and friendly?

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AC Installation & Replacement

From worn-out to wow.

If your system is beyond repair, we’ll help you choose and install the perfect, energy-efficient replacement for your home. 


We handle:


- AC installation Longmont 

- Air conditioning installation Longmont 

- Ductless mini-splits 

- Energy efficiency upgrades 

- Removal & disposal of old units 


Watch our installation team in action on our YouTube channel.

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Heating Repair & Furnace Service

Stay warm all winter.

When you need heating repair Longmont, our technicians handle all makes and models of furnaces, heat pumps, and boilers. We will keep your home cozy no matter what.

Services include:

- Furnace repairs & tune-ups
- Heat pump service
- Pilot light & ignition repairs
- Emergency no-heat service—available 24/7

Need heating and cooling Longmont help in the middle of the night? We’re always ready.

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Heating Installation & Replacement

Upgrade to efficient, reliable heat.

From high-efficiency furnaces to heat pumps, we’ll design and install the right system for your home.

We offer:

- Furnace installation Longmont
- Heat pump installation
- Boiler replacement
- Complete system design

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Indoor Air Quality Solutions

Breathe easier. Live better.

We provide indoor air quality solutions to keep your home fresh and healthy.

Options include:

- Whole-home humidifiers

- Air filtration & purification systems

- Duct cleaning services

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24/7 Emergency Services

Furnace or AC not working? Give us a call at any time for 24/7 emergency HVAC service!

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Recent Longmont HVAC Projects

We’re proud of the work we’ve done in Longmont heating and air service, as well as Westminster and Thornton. See our latest installs, repairs, and upgrades in our Recent Projects.

Maintenance Plans Tailored for Your Home

Regular furnace and AC check-ups can extend the life of your system and help you avoid unexpected repair costs. A maintenance plan with To the T Plumbing, Heating & Air offers peace of mind that your heating and cooling needs are covered, all year round.

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Schedule Heating & Cooling Service in Longmont

Call Us or Book Online Today!

Whether it’s full HVAC in Longmont, CO, or just air conditioner repair in Longmont, CO. We deliver fast, friendly, and professional HVAC services, every time. And if it’s an emergency, remember, we’re here 24/7 to restore your comfort.

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Schedule Now!

Call us now or book online!

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