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High Tech Heating & A/C Inc.

Wisconsin has two seasons. We handle both.

Heating, cooling and indoor air quality for the Madison area, from a family-run shop in Cottage Grove.

4.9 on GoogleSince 1986

Three members of the High Tech family team in company pullovers

What we do

Heat, cool, and the air in between.

Installs, repairs and seasonal maintenance on every brand.

Quick help

What's going on at your place?

Pick what you're dealing with. We'll tell you what to check first.

Let's get the heat back on.

  1. 1Thermostat is on HEAT, set above room temperature, with fresh batteries.
  2. 2The furnace switch near the unit is on and the breaker hasn't tripped.
  3. 3The filter isn't clogged. A choked filter can shut a furnace down.

Why High Tech

Rated for Wisconsin.

Every furnace has a rating plate listing what it's built to handle. Here's ours.

  • Stocked trucks

    Parts on board to finish most jobs in one visit.

  • Upfront pricing

    You'll know the price before we start.

  • Insured & bonded

    Above and beyond what's required.

  • Every brand

    We sell Lennox, Daikin and Trane, and service them all.

RATING PLATE

HIGH TECH

MODEL NO. HT-40
SERIAL 608-221-8333
Manufacturer
High Tech Heating & A/C Inc.
Established
May 1986
Location
Cottage Grove, Wisconsin
Customer rating
4.9 / 5.0 · 383 Google reviews
Surveyed visits
3,398 since 2017
Tech courtesy
96.6% five-star
Service
24 hr emergency · all brands
Service area
Dane + Jefferson County
⚠ WarningMay cause excessive comfort.
Company facts presented as an equipment rating plate.

Reviews

4.9

383 Google reviews

Neighbors keep saying the same things: they called back fast, explained it clearly, and wore shoe covers.

Post-visit surveys since 2017

3,398

  • Technician courtesy96.6% five-star
  • Clean work area96% five-star
  • Technician expertise95.3% five-star
Read them all on Google
“Sunday night went on the website and posted a service request. Received a call at 6:45am. By 7:30am Tech was in my basement and diagnosed the problem.”
MMikeHeating repairGoogle
“He explains things in a way that the customer understands, thank you Brian. I have the High Tech summer/winter contracts. They take the worry out of scheduling appointments.”
TToniMaintenance planGoogle
“I called High Tech right away for emergency service. Josh was there within 2 hours and repaired the system.”
GGaryEmergency serviceGoogle
“Called to tell time of arrival. Pleasant demeanor, wore shoe covers and completed maintenance service quickly.”
DDianeMaintenanceGoogle
“Kyan was very knowledgeable. He explained a few things to me that helped me understand the cooling system. I highly recommend High Tech cause their service people are great.”
BBurrCoolingGoogle
“My central air conditioner suddenly stopped working. They answered quickly, the technician arrived and was very professional. In less than 10 minutes he diagnosed the fault, replaced the damaged part and it was back up and running.”
CCarlos M.Central AC repairFacebook
“I absolutely love the ductless mini splits I had installed in my home. Your staff were very hard working and respectful. I would highly recommend!”
JJulie B.Ductless mini-splitsFacebook
“Their technician George is very knowledgeable and does a great job of explaining everything. Their summer AC-winter heating system service plan is great value.”
TThomas W.Service planGoogle

High Tech Protection Plan

Protected by pros.

Two tune-ups a year, priority scheduling and instant savings. We'll call you when it's time.

Essential
5% off service & maintenance items

$20/mo

Extended
10% off service & maintenance items
Most popular

$29/mo

Elite
15% off service & maintenance items

$37/mo

Founder Dave Bryan in 1986, wearing a Lennox work shirt and trucker cap
Dave Bryan, 1986.
The full High Tech crew lined up in front of the red and white service vans
The crew, today.

Since May 1986

Started in a backyard. Still in the family.

Dave and Darci Bryan opened a heating shop out of their back yard. Forty years later it's a full crew in Cottage Grove, and the job hasn't changed.

  1. 1986

    A backyard shop

  2. Early ’90s

    Into Jefferson County

  3. 1994

    One roof in Cottage Grove

  4. Today

    Lennox, Daikin & Trane

Our full story

Comfortable is a phone call away.

Repairs, tune-ups, or a no-pressure talk about a new system.