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

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Local Reviews

Rated 5.0 out of 5 stars based on 142 customer reviews

Great Timely Service.

Furnace went out overnight. Jim gas it fixed by noon.

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Great service

Prompt- professional- very courteous- explained what was wrong- and what he was going to do to fix the problem.

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Great service

Prompt- professional- very courteous - explained what was wrongs done what he was doing to fix the problem.

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Outstanding service

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Review

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Fast and efficient service.

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Great service/immediate help

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Amazing service, affordable price!

Jim came out to fix our fireplace that had stopped working. He was able to fix it quickly and at an affordable price. Sometimes having services coming into your home can be awkward, but he was very friendly and explained what the problem was and how he fixed it. Highly recommend Grenz Service!

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Very professional service

Thorough

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Jim Was Great

Jim was over to do service/a tuneup on our gas fireplace. He was very thorough and explained everything that he was doing. He has a great amount of knowledge and experience which made me really comfortable at the end of the day. I would recommend his company to anyone.

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Job Locations

James P. G.

James P. G. Job Checkin

Ductwork repair.


James P. G.

James P. G. Job Checkin

Goodman furnace repair

Goodman furnace repair

James P. G.

James P. G. Job Checkin

April air humidifier install

April air humidifier install

James P. G.

James P. G. Job Checkin

True cooler repair

True cooler repair

James P. G.

James P. G. Job Checkin

Rheem Furnace repair

Rheem Furnace repair

James P. G.

James P. G. Job Checkin

I’ll furnace repair

I’ll furnace repair

James P. G.

James P. G. Job Checkin

Furnace and humidifier maintenance


James P. G.

James P. G. Job Checkin

April air replacement

April air replacement

James P. G.

James P. G. Job Checkin

Carrier furnace repair

Carrier furnace repair

James P. G.

James P. G. Job Checkin

Comfortmaker furnace repair

Comfortmaker furnace repair

James L. G.

James L. G. Job Checkin

Repair fireplace

Repair fireplace

James P. G.

James P. G. Job Checkin

Furnace repair

Furnace repair

James P. G.

James P. G. Job Checkin

Bypass humidifier install

Bypass humidifier install

James P. G.

James P. G. Job Checkin

Envirowise humidifier install

Envirowise humidifier install

James P. G.

James P. G. Job Checkin

Sterling unit heater

Sterling unit heater