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(816) 601-5621

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Grain Valley Heating

Grain Valley Heating Repair, Installation & Replacement Services

Schedule Online

Call (816) 601-5621 for all your Grain Valley heating repair, installation & replacement services needs

The expert team at First Mate will exceed your expectations with our dedication to excellent customer service. We also strive to save you money. You can see our current deals on our coupons page.

Offering a full range of HVAC products and services for your home or business, we are your best choice to deliver comfort and energy efficient heating solutions at an affordable price.

We’re not the only ones who believe the First Mate experience is the best in the area. See what some of our other customer had to say about us on our reviews page.

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- By submitting your information, you consent to receive text messages, emails, phone calls, or other communication from First Mate Heating at the phone number or email address you have provided. Standard message and data rates may apply. If you wish to stop receiving messages at anytime, please reply with the word "Stop" or "Unsubscribe". Information collected will be used as described in our Privacy Policy.

Deals & Financing

$1,000 Off a New Full System

Must mention coupon at the time of initial call for consultation. Not valid with other offers and not valid on past purchases or quotes.

Request Service Expires 09/30/2026Subject to credit approval. Must mention coupon at time of initial call for consultation. Promotional restrictions apply. Call for more details.

$69 New Customer Tune-Up

Must mention coupon at the time of initial call for consultation.

Request Service Expires 09/30/2026Subject to credit approval. Must mention coupon at time of initial call for consultation. Promotional restrictions apply. Call for more details.

$50 Off a New Water Heater

Must mention coupon at the time of initial call for consultation. Not valid with other offers and not valid on past purchases or quotes.

Request Service Expires 09/30/2026Subject to credit approval. Must mention coupon at time of initial call for consultation. Promotional restrictions apply. Call for more details.

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Our Services

Heating

Cooling

Water Heaters

Indoor Air Quality

Our Services

Heating

Cooling

Water Heaters

Indoor Air Quality

Make Financing Easy When You Choose First Mate!

Discover personalized financing solutions designed to fit your needs

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What To Expect Discover The First Mate Heating & Cooling Difference

Emergency Service

Your HVAC systems don’t wait for a good time to have an issue. Trust that we’re here anytime to help get your systems going again.

No Surprises

With First Mate Heating & Cooling, there are no surprises, no hidden fees, no price gouging, and no upselling.

NATE and EPA Certified Techs

Our technicians are certified and highly qualified to ensure your project is always handled correctly.

Estimates

We’re happy to offer free estimates on all replacement parts. Contact us to get started.

Old School Values, New School Tech

First Mate Heating & Cooling keeps up to date on all the latest techniques, and we always ensure we treat you and your home like our own.

Over 50 Years of Experience

Our years of experience come with us to every project, and we work to ensure you’re satisfied with everything we do.

Emergency Service

Your HVAC systems don’t wait for a good time to have an issue. Trust that we’re here anytime to help get your systems going again.

No Surprises

With First Mate Heating & Cooling, there are no surprises, no hidden fees, no price gouging, and no upselling.

NATE and EPA Certified Techs

Our technicians are certified and highly qualified to ensure your project is always handled correctly.

Estimates

We’re happy to offer free estimates on all replacement parts. Contact us to get started.

Old School Values, New School Tech

First Mate Heating & Cooling keeps up to date on all the latest techniques, and we always ensure we treat you and your home like our own.

Over 50 Years of Experience

Our years of experience come with us to every project, and we work to ensure you’re satisfied with everything we do.

Our Reviews See What Our Clients Say.