Heating Repair
Furnaces, boilers, heat pumps. Fast diagnosis, honest fix. 24/7 emergency response when the house goes cold.
Learn more Macomb, Illinois — Est. 1960
365 days of of indoor comfort.
Family-owned heating & cooling for west-central Illinois. Repair, installation, and 24/7 emergency service from a shop that's been doing this for sixty-five years.
- 65+
- years in business
- 4.9★
- from 117+ reviews
- 24/7
- emergency service
1729 W. Jackson St · Macomb, IL
The shop, since the seventies.
Family-owned ✦ Carrier Dealer
§ 01 — What we do
Six trades, one phone call.
Whether the furnace went out at 2 AM or you're planning a new system before next winter — our technicians have been doing this long enough to make it look easy.
Cooling Repair
Air conditioners and heat-pump service that keeps you comfortable through the hottest weeks of an Illinois summer.
Learn moreNew Installation
Right-sized systems for new construction or replacement. Carrier-trained technicians, factory-backed warranty.
Learn moreMaintenance
Seasonal tune-ups and preventive maintenance plans that extend equipment life and lower utility bills.
Learn moreIndoor Air Quality
Whole-home humidifiers, air cleaners, UV lights, and ventilators for cleaner, healthier indoor air.
Learn moreCommercial HVAC
Service contracts and installations for storefronts, offices, and light industrial across McDonough County.
Learn more365 days of indoor comfort. Call the shop and we'll send a tech.
Talk to the shop →
§ 02 — Save right now
Coupons, currently clipped.
Four offers running through May 31, 2026. Mention them when you call — or print this page and bring it in.
10 % off
Heat & Glo Gas Inserts
Discount good with coupon only. Not valid with any other offer.
Mention coupon
Call to redeem →
10 % off
Preventative Maintenance Agreement
First-time customers only. Discount good with coupon only.
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10 % off
All Service Repairs
For military, veterans & first responders. First-time customers only.
Mention coupon
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$ 100 off
New Customer Referral
Earned when a referral results in the installation of a new system.
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Financing
New system today, monthly payments tomorrow.
Arnold Brothers partners with Synchrony Financial on the Home Design credit card — a simple application, fast credit decisions, and promotional financing on qualifying purchases. Subject to credit approval.
$29 account activation fee at first purchase · Purchase APR 26.99% · Min. monthly interest charge $2 · Subject to credit approval
§ 03 — Equipment
Right-sized systems, factory-backed.
№ 01 · Heating
Arnold Bros. ✦ Macomb
Furnaces, Boilers & Heat Pumps
Carrier high-efficiency gas furnaces, hydronic boilers, and dual-fuel heat pumps. We size each system to your home's actual load — not a guess off square footage — so you don't pay to heat air you'll never feel.
- Up to 98% AFUE efficiency
- Two-stage & modulating burners
- 10-year parts warranty
№ 02 · Cooling
Arnold Bros. ✦ Macomb
Air Conditioners & Mini-Splits
Central AC, ductless mini-splits, and inverter heat pumps. Quiet operation, smart-thermostat compatible, and the right pick for older homes where running new ductwork isn't in the cards.
- SEER2 ratings up to 22
- Variable-speed inverters
- Whole-home or zoned
№ 03 · Geothermal
Arnold Bros. ✦ Macomb
Ground-Source Heat Pumps
The most efficient HVAC system you can install — geothermal pulls steady-temp energy from the ground year-round. Higher up-front cost, but it pays for itself, and tax credits help. We've installed dozens around McDonough County.
- 30% federal tax credit
- 25+ year ground-loop life
- Heating + cooling in one
Not sure what you need? We'll size it right.
Get a free estimate →
§ 04 — The shop
A small shop with a long memory.
We've been quietly keeping west-central Illinois warm in winter and cool in summer for sixty-five years. We install systems we'd put in our own homes — and we service everything we sell. Here's what that gets you:
- Family-owned & operated since 1960
- Carrier authorized factory dealer
- Service all makes & models — not just what we sell
- Free estimates on new installations
- 24/7 emergency line — a real person, not a recording
- Financing available with approved credit
Est. 1960
§ 06 — Recent work
From farmhouses to commercial rooftops.
Residential install Industry, IL Geothermal Heat Pump
Closed-loop geothermal system on a 3,200 sq ft farmhouse. Replaced an aging propane furnace and central AC. Owners are now heating and cooling on a fraction of the previous utility bill.
Spec
5-ton · vertical loop · WaterFurnace
Residential install Macomb, IL Furnace + AC Replacement
Whole-system swap on a 1970s ranch — Carrier 96% AFUE gas furnace paired with a 16-SEER2 condenser. Picked up two-stage heat and a much quieter outdoor unit in the bargain.
Spec
80,000 BTU · 3-ton · Carrier
Light commercial Carthage, IL Commercial Rooftop Unit
12-ton rooftop package unit serving a downtown storefront. Replaced an end-of-life unit during off-hours so the business never closed. Service contract included.
Spec
12-ton · Carrier 48TC · economizer
§ 05 — What folks say
4.9 ★ from 117+ reviews.
Of course my AC decided to peeter out on a Saturday night. The tech, JD, was fantastic — would absolutely recommend them to anyone.
I am in awe of this company. The repair person arrived less than two hours from when I first called and was amazing.
Error code on our geothermal — called Monday morning and they sent Ty out the same day. Calm, kind, and got it done.
§ 07 — Reach the shop
Tell us what's not working.
Call the shop
Fastest way to reach us during business hours. A real person will pick up.
309·833·2852After-hours emergency
When the heat goes out at 2 AM. We answer the line, weekends and holidays included.
309·837·2631Visit the shop
We're at 1729 W. Jackson St in Macomb — the same building since the seventies.
Open in mapsOr send a request and we'll get back same business day.