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Areas We Serve

Areas We Serve

St. Louis City/County

  • Affton
  • Arnold
  • Ballwin
  • Brentwood
  • Bridgeton
  • Chesterfield
  • Clarkson Valley
  • Clayton
  • Concord
  • Crestwood
  • Creve Coeur
  • Des Peres
  • Ellisville
  • Eureka
  • Fenton
  • Florissant
  • Frontenac
  • Glencoe
  • Grover
  • Hazelwood
  • Imperial
  • Kirkwood
  • Ladue
  • Lemay
  • Manchester
  • Maplewood
  • Oakville
  • Overland
  • Richmond Heights
  • St. Albans
  • St. Ann
  • Sunset Hills
  • Town & Country
  • Unincorporated St. Louis County
  • University City
  • Valley Park
  • Webster Groves
  • Wildwood

St. Charles County

  • Cottleville
  • Dardene Prairie
  • Lake St. Louis
  • O’Fallon, MO
  • St. Charles City
  • St. Peters
  • Wentzville

Illinois

  • Belleville
  • Collinsville
  • Columbia
  • Edwardsville
  • Fairview Heights
  • Maryville
  • O’Fallon, IL
  • Shiloh
  • Swansea

Service Map

ServiceArea

Reviews

Just want you to know how very happy we are with the excellent job Mike did on all of our copper gutters/flashing and dormers.

John and Mary P.

I was extremely impressed with the technician. He came and looked at my unit to see what they can do to make it work more efficiently. He also told me exactly when he was coming and he was fair in pricing. Very professional. I really appreciated him. I commend the servicemen...

Kathie T.

By the way, Welsh just installed a new system (furnace and a/c) in my father’s town house in Eureka. His a/c went out during the height of the August heat wave. Denny Turlin was our sales rep. As always, we got great service from Denny and your company!

Brad J.

Our family tried 4 other company’s in St. Louis to replace old boiler and three AC units for a 4,500 sq. ft. , 100 year old home. It was a VERY complex project involving a lot of thought and creativity. The project was also completed a week before its expected...

G.S.

Welsch Heating and Cooling came out fast (our old unit stopped on a Friday – our new one was in by Monday.) They were very responsive to our needs and very helpful during the installation and followed up to ensure we were happy with our service!

Corinne D.

More Reviews

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