About us
Business highlights
96 years of trusted experience
Emergency Services Offered
Services we offer
Amenities
Free Estimates
YesWarranties
YesEmergency Services
YesAccepted payment methods
Reviews
4.740 Reviews
Showing 26-40 of 40 reviews
Howard S.
10/2017
heating & air conditioning/hvac
+ -1 moreEverything was great.
Description of Work: Install new HVAC system.
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Yes, I recommend this pro
$5,450
Response from John Thielmann & Son Heating and Cooling, Inc.
Marlene S.
02/2017
heating & air conditioning/hvac
+ -1 more.
Description of Work: Installed heating and ac system.
| Rating Category | Rating out of 5 |
|---|
Yes, I recommend this pro
Peter A.
01/2017
heating & air conditioning/hvac
+ -1 more.
Description of Work: .
| Rating Category | Rating out of 5 |
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Yes, I recommend this pro
$7,000
Margaret R.
03/2016
heating & air conditioning/hvac
+ -1 more.
Description of Work: .
| Rating Category | Rating out of 5 |
|---|
Yes, I recommend this pro
$100
Jerry W.
02/2016
heating & air conditioning/hvac
+ -1 moreunknown
Description of Work: They service my furnace and air conditioner.
| Rating Category | Rating out of 5 |
|---|
Yes, I recommend this pro
Darlene R.
01/2016
heating & air conditioning/hvac
+ -1 moreunknown
Description of Work: They replace our old furnace, rework the duct works in the family room, and also replace the thermostat. They were very efficient, neat, and did a very good job. We would recommend them to anyone.
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Yes, I recommend this pro
$4,000
Diann K.
12/2015
heating & air conditioning/hvac
+ -1 moreunknown
Description of Work: Professional and courteous, very pleased with their service.
| Rating Category | Rating out of 5 |
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Yes, I recommend this pro
$1,800
jean W.
10/2015
heating & air conditioning/hvac
+ -1 more.
Description of Work: Removed old oil furnace and oil tank and installed new high efficiency gas furnace and humidifier. Salesman was great and very low pressure. Workers were here exactly when they said they'd be. When they drained the oil from the tank, I got reimbursed for the oil. My house is old but they did an excellent job routing wires and pipes, etc. so pleased with the results. It's a pleasure having the heat on without all the noise and banging of the old furnace, totally quiet. Highly recommend Thielmann!
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Yes, I recommend this pro
$5,000
jean W.
10/2015
heating & air conditioning/hvac
+ -1 more.
Description of Work: Installed new architectural roof on ranch house, breezeway, 2-1/2 car garage and shed. Installed new gutters and Downspouts and gutter shields all around. They were non pressure, honest, neat and kept me in the loop as far as rain/snow days. They did what they promised and my house looks great! I couldn't be happier.
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Yes, I recommend this pro
$11,000
Joan C.
12/2014
heating & air conditioning/hvac
+ -1 moreunknown
Description of Work: In March 2014 we replaced our furnace, central air and humidifier. We were completely satisfied with the estimate, installation, and follow up. They arranged for duct cleaning, inspection and rebates.
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Yes, I recommend this pro
$7,000
Gina B.
06/2014
heating & air conditioning/hvac
+ -1 moreunknown
Description of Work: Installed a condenser unit
| Rating Category | Rating out of 5 |
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Yes, I recommend this pro
$2,250
Thomas W.
05/2013
heating & air conditioning/hvac
+ -1 moreMy husband met with them and really liked them. When they came to the house they were very rude and kept asking for my husband who was at work. We ran into a problem with one of the heating vents and the entire time when they came back they blamed the carpenter. He was so rude in his tone of voice to me that the drywall guy who was here told him to stop talking to me in such a rude voice. I could not believe how rude they were. Will never use them again.
Description of Work: Put heat in our basement.
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$1,200
Response from John Thielmann & Son Heating and Cooling, Inc.
Tyrone T.
09/2012
heating & air conditioning/hvac
+ -1 moreper estimate, on time did what they said theyd do. professional job.
Description of Work: one of three companies providing estimate on replacement of furnace and a/c. brad who did estimate was friendly andeasy to talk to. it was late in day, and i was late getting home due to traffic. brad provided answers to my barrage of questions with no concerns. i felt brad knew his business. while they sell both lennox and bryant, he strongly believed in lennox brand. he provided estimates for both, i ended up going with lennox, $135 more than my lowest bryant bid, but 10 yrs labor warrantee along with 10 yrs on parts. i got my estimate by email the next morning. follow up call by brad day later. brad was attentive without being pushy. i dont like the h hard sell approach. there was a couple of iterations on details of estimate before i pulled the trigger, i can be a bit anal on details. installers showed up right on time. courtesy call that they were on way. my wife home for install, said guys were very nice, did a professional job. 100 % on clean up, youd never know they had replaced furnace in the basement. i had pulled mulch away from concrete pad to help them to relevel it before install of new a/c. im sure it only took them a minute or two, but they redistributed mulch back to how it was. again youd never know a new a/c installed hours earlier. time will tell if i made right choice on lennox vs. bryant. i very confident i made a good choice on them as installer.
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Yes, I recommend this pro
$5,200
Suman O.
07/2012
heating & air conditioning/hvac
+ -1 moreIt went good. They were receptive and listened and did what they were told.
Description of Work: They changed my A/C and furnace.
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Yes, I recommend this pro
$6,000
Jim M.
07/2011
heating & air conditioning/hvac
+ -1 moreThey have done a terrific job. They have also a done a little extra work. I was amazed because they decided to put it in for the same rate.
Description of Work: I have used the services of Lennox International Inc in spring for tune-up. They have put in a new air filter. I have been using them for 3 years.
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Yes, I recommend this pro
$70
Response from John Thielmann & Son Heating and Cooling, Inc.
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- 2(current)
Contact information
1310 E Sumner St, Hartford, WI 53027
www.thielmannheating.comService hours
Sunday:
ClosedMonday:
8:00 AM - 4:30 PMTuesday:
8:00 AM - 4:30 PMWednesday:
8:00 AM - 4:30 PMThursday:
8:00 AM - 4:30 PMFriday:
8:00 AM - 4:30 PMSaturday:
ClosedLicensing
Bonded
Insured
State Contractor License Requirements
All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.
*Contact business to see additional licenses.
Service Categories
Heating and Air Conditioning
FAQ
John Thielmann & Son Heating and Cooling, Inc. is currently rated 4.7 overall out of 5.
Sunday: Closed
Monday: 8:00 AM - 4:30 PM
Tuesday: 8:00 AM - 4:30 PM
Wednesday: 8:00 AM - 4:30 PM
Thursday: 8:00 AM - 4:30 PM
Friday: 8:00 AM - 4:30 PM
Saturday: Closed
John Thielmann & Son Heating and Cooling, Inc. accepts the following forms of payment: Check,Discover,Financing Available,MasterCard,Visa
Yes, John Thielmann & Son Heating and Cooling, Inc. offers free project estimates.
No, John Thielmann & Son Heating and Cooling, Inc. does not offer eco-friendly accreditations.
No, John Thielmann & Son Heating and Cooling, Inc. does not offer a senior discount.
Yes, John Thielmann & Son Heating and Cooling, Inc. offers emergency services.
Yes, John Thielmann & Son Heating and Cooling, Inc. offers warranties.
John Thielmann & Son Heating and Cooling, Inc. offers the following services: Furnaces, Air Conditioner, Geothermal, Heat Pumps, Solar Ready, Boilers, Garage Heaters, Ductless Mini-Split Systems, Air Handlers, Comfort Controls to name a few.
Contact information
1310 E Sumner St, Hartford, WI 53027
www.thielmannheating.comService hours
Sunday:
ClosedMonday:
8:00 AM - 4:30 PMTuesday:
8:00 AM - 4:30 PMWednesday:
8:00 AM - 4:30 PMThursday:
8:00 AM - 4:30 PMFriday:
8:00 AM - 4:30 PMSaturday:
Closed