Bigg's and Martin Heating & Air

Bigg's and Martin  Heating & Air We opened Bigg's Htg. & Air in 2002. We have been blessed with wonderful customers ever since and ar As time went on business began to increase and grow.
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Bigg's Htg & Air was established in 2002 by Andy and Cindy Biggerstaff in a little shop in Omaha IL. In 2007 Bigg's Htg & Air bought a shop at 1215 S Roosevelt in Harrisburg IL. (our current location) . In 2012 after much growth Bigg's Htg. & Air built a new building in order to better serve our customers(at our current location) . We are a full line Ruud and American Standard Dealer. We service

all major brands. We also offer custom sheet metal work built in our shop. With the belief of Always being on time, Always being honest and Always putting our customers first . We believe that we create not just customers but Friends and Family.

It’s That time of year again ❄️ ❄️First thing. If you don’t have to get out don’t. Roads are increasingly Becoming slick...
01/24/2026

It’s That time of year again ❄️ ❄️
First thing. If you don’t have to get out don’t. Roads are increasingly
Becoming slick
After seeing the forecast and talking to many customers today there is a few things we want you to know.
Most homes built here in southern Illinois are built on what is referred to as the 90°-20° scale due to standard insulation practices of our area. This means when the temps are above 90° your air conditioning will run a majority of the time of the day and night. When the temps get below 20° your furnace will run a majority of the time of the day and night. So do not panic if your system seems to run all day and night or if it slips a few degrees during extreme temperatures.
If you are using space heaters
DO NOT USE A EXTENSION CORD!!!!!!!!!!!!!!!!
If you use a fireplace gas /wood or a gas wall heater make for sure your smoke detector and carbon monoxide detector have new batteries and are in good working order.
Make for sure your air filters are clean. A dirty air filter can cause your furnace to run less efficient and also cause mechanical issues with your system. Which could lead to problems with your system.
If your system does stop working through extreme conditions and you have to call out a technician.
Remember to be kind to the technicians. Be patient because there could be numerous people who have no heat.
Technicians are getting out in temperatures that sometimes are dangerous, sometimes driving on dangerous roads and putting their personal well being on the line to make for sure you and your family are takin care of.
Be Safe
Bigg’s and Moore Heating & Air

01/21/2026

Today our CEO students had the opportunity to tour Biggs & Moore Heating and Air Conditioning with Andy Biggerstaff, and the lessons went far beyond the technical side of business.

Andy encouraged students to become key employees by learning everything they can, approaching every opportunity with a servant’s attitude, and never letting anyone define their worth — you are somebody.

He challenged us to look beyond the surface, get to the core, and truly understand people. One of the biggest takeaways was the importance of strong business relationships. Success isn’t just about what you know, but how you treat people and the relationships you build along the way.

If you want to be successful in business — and in life — make good relationships and nurture them. Thank you, Andy, for the wisdom and inspiration today!

Rely on Ruud and  Bigg’s and Moore Heating & Air. If it’s light commercial HVAC or residential HVAC. We have you covered...
12/17/2025

Rely on Ruud and Bigg’s and Moore Heating & Air. If it’s light commercial HVAC or residential HVAC. We have you covered with high quality installations and craftsmanship.

Do you want to entrust a company handling multiple trades, including the most expensive and potentially hazardous applia...
12/12/2025

Do you want to entrust a company handling multiple trades, including the most expensive and potentially hazardous appliances like furnaces and AC units, with your HVAC needs when new equipment costs range from $8000 to $15000? Wouldn’t you prefer a company specializing exclusively in HVAC, ensuring trained and professional service? For expert HVAC solutions, please contact Bigg’s and Moore Heating & Air at 618-252-1997.

12/11/2025

Just because someone claims to be a certified professional, you might want to check how many years they have in the trades.

12/03/2025

Address

202 South Granger
Harrisburg, IL
62946

Opening Hours

Monday 8am - 4pm
Tuesday 8am - 4pm
Wednesday 8am - 4pm
Thursday 8am - 4pm
Friday 8am - 4pm

Telephone

(618) 252-1997

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