Thorsen’s-Norquist
Company Overview
For over a century, Thorsen’s-Norquist has specialized in expert plumbing, heating, and air conditioning services.
We handle duct cleaning, precision installations, and tailored system designs.
You’ll find top-quality products from Bryant, Coleman, and more in our showroom.
We craft durable solutions using copper, brass, and stainless steel.
Save big with our limited-time coupons.
Visit our Turlock location for personalized service.
What began as a one-man operation in a High Street shed grew into a legacy.
His first shop relocation in 1916 marked the start of something big.
Early jobs focused on windmill pumps and water tanks.
By 1933, growth meant a bigger shop on Lander Ave.
HVAC joined our lineup during the postwar boom.
Leadership shifted to Rodney Thorsen in ’65, continuing the family tradition.
Expansion peaked with our North Walnut Road building in 1977.
Craig Pitau’s journey from GM to owner began in 2002.
By 2012, Craig owned the business outright.
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

All those that save me money get 5 stars for sure. Other companies recommended a 5K unit be trashed while Thorsen's cleaned it up and got it working right for a fraction of cost of replacement. Thank you Thorsen's for doing a great job!!

I've been using Thorsen's for about 20 years for plumbing repairs (old house, lots of problems!). They always are able to schedule me quickly, do good work and are professional. Highly recommended!

They are simply the best! I have used them for years!! We use them for our home and for my business at Planet Beach Contempo Spa in Turlock. They come out and clean out my dryer ducting at the shop every year. We do tons of towels at the shop and we have a ton of lint after they come clean our ducts the dryer works awesome! LOL! We use them for plumbing issues also! Great service at a great price! Thank you Thorsen's!

Grant from Thorsen's was able to get the air conditioning up and running when another company failed to after several visits. Thank you for keeping us from ""dying from the heat"" this summer.

3 trips and my water heater still isn't working. Seems they are trying to encourage me buy a new one. But the one I have is fairly new. Looking for a different repair guy now.

Great company! They've been voted #1 in Turlock for over 7 years for good reason. If you want honest people who will get the job done right, call Thorsen's

Horrible customer service!! We've been with thorsens for years, and I will say two weeks later I get a phone call concerning my broken air conditioner just doesn't cut it. It sure is hard to find a business now days to just return a phone call. Your customers are the back bone of your business, and you loose them and soon you find yourself out of business. Me and my family will be taking our business else where.

Really having a problem w/Thorsens today. Normally they are professional and provide good service but today's situation was unreal! Had a simple job of replacing two bathroom faucets which turned into a 3 hour ordeal due to negligence and poor workmanship. A valve was left unattended and when the water main was turned back on it flooded my master bath and leaked into the downstairs, through a light fixture and on to my kitchen floor. Upstairs, it soaked through the wood cabinet under the sink and seeped under the tile floor where it meets the carpet. Not only were all of these problems not disclosed to me but I was charged almost $400! Very unhappy :-(

I had Thorsen's come to my residence twice this summer. They were on time, very polite and they were very careful to wear booties over their shoes so my floor stayed clean. I had them clean my dryer vent which saved me 20 minutes per load of drying time. They also cleaned my air conditioner & heating ducts. Made a huge difference!
Thank you Thorsen's

Thank you Thorsen's for the outstanding service!
We were experiencing issues with our refrigerator, and needed some expert advice. We were getting ready to go out of town, and didn't want to come home to find out it had expired ;)
The technician did an evaluation, and immediately found the issue, and for a small fee replaced the part, and we were so relieved!
Thank you !