Thorsen’s-Norquist
Company Overview
Established in 1911, Thorsen’s-Norquist provides reliable plumbing, HVAC, and custom metalwork.
From duct maintenance to bespoke system setups, we’ve got you covered.
Trusted brands like Westinghouse, Bryant, and American Standard fill our inventory.
Custom metalwork in copper, brass, and stainless steel is our specialty.
Check our website for exclusive discount offers.
Visit our Turlock location for personalized service.
In 1911, Andy Thorsen Sr. started with just a toolbox and a dream.
The Lander Ave storefront became a local landmark in 1916.
Simple plumbing and pump systems kept him busy in those days.
By 1933, growth meant a bigger shop on Lander Ave.
HVAC joined our lineup during the postwar boom.
By 1965, Rodney was steering the company forward.
Expansion peaked with our North Walnut Road building in 1977.
A longtime friend of the Thorsens, Craig stepped up to lead in 2002.
The Thorsen family entrusted Craig with full ownership in 2012.
With a CSU Sacramento degree, Craig merged tradition with innovation.
Before Thorsen’s, Craig sharpened his skills at Foster Farms.
Family remains at the heart of Craig’s story.
Business Services
- Air duct cleaning
- Bathtub installation
- Drain repair
- Faucet installation
- Faucet repair
- Gas line installation
- Gas line repair
- HVAC installation or replacement
- HVAC system repair
- HVAC system maintenance
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Shower installation
- Water heater installation
- Water heater repair
- Water pipe repair
Business Location & Hours
Mon: | 8:00 AM - 5:00 PM |
Tue: | 8:00 AM - 5:00 PM |
Wed: | 8:00 AM - 5:00 PM |
Thu: | 8:00 AM - 5:00 PM |
Fri: | 8:00 AM - 5:00 PM |
Sat: | Closed |
Sun: | Closed |
Recommended Customer Reviews

DO NOT USE THIS COMPANY. They are a freaking joke.
Our Carrier Cor thermostats upstairs and downstairs gave out a month ago and we had to call these people because they're supposed to be specialists at fixing these newer systems. Not!
They sent one guy out who said that the control board was messed up so they had to order a new one but meanwhile he would just hook up the upstairs thermostat until another tech comes out to install it. The new guy comes out a week later and says that there were wire problems???? We tried to contact his boss but I am sure they knew they fucked up so nobody called me back because they werent trying to own up to their faults. the guy ended up installing some cheap thermostat downstairs for us and said that we'd have to call and have another person come out to fix the wire problem. Wtf?
In the end, nothing was fixed!!!! so how are they gonna try and collect when the job wasnt even done at all??!???
they are literally a waste of money!!!! I found someone who is much more reliable and knowledgeable!!! Screw these people!

I've been a Thorsen's customer for years, even before I was a home owner. I called to schedule and was told the maintenance is not 67.00 that it would be 75.00. Ok. Then because they weren't going to have anyone in Denair area (5 miles from business) on Friday they would have to charge me mileage fee.
You may want to rethink using Thorsen/Norquist as being a customer for 20 plus yrs and another 10 yrs from apartment management doesn't seem to matter. Only the upcharges. Thorsens use to be great!
By the way, I wasn't having an issue just doing a maintenance of AC unit. Any ideas who is in customer care and servicing business?

We've relied on Norquist (now Thorsens-Norquist) on and off for years. We do the biannual servicing for our air conditioner and heating units. Technicians are friendly and professional. Price is reasonable. They are quick and efficient and keep our old units working nicely. Thank you!

Thank You Gabe Miranda and crew.....knowledge and professionalism!......got us out of a big bind......fixing other service peoples mistakes......stayed on it until the issues were resolved!!!!

Very expensive. They will only make an estimate and when job is completed they will not give you a breakdown of parts and labor. Bill was exactly the estimate.

I was in a bind on a very hot day. I called around for prices and availability. Bottom line Thorsen's came out and got the job done for a great price. The service technician was extremely helpful and explained everything he was doing. Within a hour my AC was humming right along. I would recommend them and will call again if needed.

My initial interaction with Thorsen's-Norquist was good. Competitive pricing and acceptable timeline to have my moms aging HVAC replaced. Crew came as promised and installed the unit. Happy so far with the package they sold me. However, there was a significant delay in sending us a final invoice and payment was sent within two working days. What followed over the next few days, a phone call saying they had not been paid, and a letter threatening late fees was not acceptable. When I called to speak with the owner, I could not get a return call. I think he was hiding from me. Also not acceptable. My mom has used Thorsen's for years for annual maintenance. Not sure how we will proceed in the future though as after sale responsiveness is important to me and I was disappointed.

They're trying to rip people off big time! They ""fixed"" our AC yesterday, but it's broken again today. They want us to pay them again just to come out and look at it, and they're demanding the money up front!
This sort of shoddy AC service is unacceptable in California, and we'll be seeking legal action if these people don't make it right.

They do not stand behind their guarantee. We had a new unit installed and they came out no less than 6 times over 3 summers trying to get it to work. This summer I can't get them to even return my call. We are DONE with Thorsen's-Norquist and calling a competent business.

Do NOT use. We try to support local businesses. We have 2 air conditioning systems to manage our 2 story home. One unit went out and Thorsens replaced it at about $8k. They had to come back at least 6 times over the past 3 years from install. Always some ""little"" issue with labor and parts = more $$. Last year our second unit needed to be replaced and I had another local provider quote and because the service was so difficult with Thorsens, I went with someone else. They quoted less, installed on time and successfully! We started both units this summer and again, Thorsens unit wouldn't cool. Thorsens had just been at our place in May to install more duct work =$1200, because that was the issue. By June, it wasn't better so we called the successful installer. He came to look at the problem unit and showed us the unit installed by Thorsens was old (perhaps even used) and incompatible with the cooling equipment. When I called Thorsens to try to work with them to resolve, they wouldn't let me speak with a Manager. Gabe eventually called me back the following day and offered, ""those things happen"" and ""they could come out and replace"" for another $5k investment.
In between all of this, our other property required a unit to be replaced which was completed by Thorsens. This summer, a year later, SAME issue where the unit is turned on and won't cool. Gabe offered ""factory sometimes makes units with issues"".
Do NOT use this provider for HVAC needs. They are not a honest business and customer service is not important to them.