250 West Main St.
Delafield, WI 53018
262-646-3880

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Local Reviews
for mukwonago, wi

Rated 5.0 out of 5 stars based on 2 customer reviews

Excellent Service, Product and Expertise!

Nothing but great reviews from us. From the ease of an on-line work inquiry to the actual install of a new furnace, the process was seamless and a great customer experience. Not all HVAC install companies are equal; it pays to get an estimate for service from Grenz. Quality products and experienced, knowledgeable staff who truly care about the customer and needs. After having various HVAC companies service us for 20 years, we're 100% satisfied and sticking Grenz Service company.

  • Overall Experience
  • Quality
  • Price
  • Convenience

Friendly people, professional

  • Overall Experience
  • Quality
  • Price
  • Convenience

Job Locations
for mukwonago, wi

James P. G.

James P. G. Job Checkin

Trane furnace install


James P. G.

James P. G. Job Checkin

American standard platinum install

American standard platinum install

James P. G.

James P. G. Job Checkin

April air replacement

April air replacement

James P. G.

James P. G. Job Checkin

Furnace repair

Furnace repair

James L. G.

James L. G. Job Checkin

Fireplace service

Fireplace service

James P. G.

James P. G. Job Checkin

American Standard Heating Maintenance

American Standard Heating Maintenance

James P. G.

James P. G. Job Checkin

American Standard air conditioning maintenance

American Standard air conditioning maintenance

James P. G.

James P. G. Job Checkin

Cooler repair


James P. G.

James P. G. Job Checkin

Carrier furnace repair

Carrier furnace repair