Collinsville, IL

Collinsville, IL, HVAC Contractor. Weis Comfort Systems offers licensed HVAC service to Collinsville business and home owners. Weis specializes in HVAC services including AC repair and install, heaters, boilers, and air filtration. We carry the best brands and products in the industry. Call us today for 24/7 emergency service or schedule an HVAC tune-up. Weis Comfort Systems is your go-to Collinsville, IL, HVAC provider.

Weis' talented Collinsville HVAC service help you maintain efficient and well-maintained heating and cooling systems. Weis has served Collinsville customers for upwards of 8 decades and continue to offer premium HVAC repair, maintenance, and installation. We offer rebates and coupons, financing options, maintenance plans, and other HVAC services in Collinsville. See our HVAC reviews to learn more about our success.

Dedicated Collinsville HVAC Repair

When winter comes around and your heater goes out, you will likely regret not getting a full HVAC maintenance check. We are an HVAC company dedicated to helping home and business owners prevent heating and cooling issues and maintain an efficient system. Keeping your Collinsville HVAC in good condition lowers electricity and gas bills and ensures that your home is warm when it's cold and cool in the summer.

We're more than an HVAC service. Since 1974, we have offered Collinsville customers with proven service. When you call Weis Heating and Cooling, expect the best. We can prove it with our customer reviews.

Collinsville Furnace Installation and Repair

Furnace Installation and Repair in Collinsville is crucial for home and business owners. Our factory-certified techs are prepared for 24/7 heating service. Weis can provide a free repair or installation quote today. Visit our service request page or give us a call for additional information.

Weis checks thermostat settings, electrical connections, the condensate drain, and other parts of your furnace to ensure they work efficiently and keep you and your family warm in the winter. A well-maintained furnace or heater can save you hundreds of dollars. After all, you wouldn't want your inside heating to go out when it's snowing and cold out.

Weis services a variety of brands and products, including Lennox, Daikin, Aprilaire, Arzel, WaterFurnace, and more.

Boiler Repair and Installation in Collinsville, IL

For Collinsville homeowners and residents, a busted boiler may be catastrophic. Homes that are decades old in Collinsville may rely on boilers for central heating. The expert boiler installation and repair techs in Collinsville at Weis are here to help. We provide competitive financing to ensure your home is efficient and safe. Please request information for HVAC repair and service in Collinsville, IL, now.

Collinsville AC Repair

Need air conditioning repair or installation in Collinsville? Has your AC gone out? The experienced AC mechanics at Weis provide Collinsville homeowners with top-notch air conditioning repair and maintenance. Our Collinsville AC contractors are here 24/7 for emergency repair and installation. Weis utilizes cutting edge technology and you can expect the best when it comes to AC installation and repair. We offer seasonal and affordable service to Collinsville customers.

Emergency HVAC Service

Weis Comfort Systems has served the Greater St. Louis area for more than 80 years. We service and install ALL makes and models of furnaces, air conditioners, and HVAC equipment. We also offer available same-day service to get your furnace or air conditioner running ASAP.

Please view our current specials for 2018 and details about our company by watching our latest video.

HVAC Service Near You

Weis Comfort Systems' preventative HVAC maintenance plans help Collinsville customers and homeowners keep their heating and cooling systems efficient. There are various things we do to ensure your HVAC systems runs smoothly. These include:

  • Clean your evaporators and air conditioner coils.
  • Checking your AC's refrigerant level.
  • Adjusting blower components to improve airflow.
  • Checking oil or gas pressure, connections, burner combustion, and heat exchange.
  • Updating your thermostats.
  • Lubricate parts and tighten electrical connections.
  • Inspect the condensate drains of your heat pump, furnace, and AC units.

Signing up for a maintenance plan can save you hundreds of dollars every year. We're dedicated to maintaining your HVAC system to ensure safety and efficiency.

We also believe in the health and safety of your Collinsville home. We provide a broad range of products to ensure your family is safe. This includes carbon monoxide detectors, dust filters, air purifiers, filtration units, and other products. We also have short- and long-term financing options to help Collinsville residents with HVAC service. Get in touch with Weis Comfort Systems for more info about financing options.

Weis prides itself on these values:

  • Providing dedicated service for more than 80 years to Collinsville homeowners with HVAC quality service.
  • Allowing our customers to pay via cash, checks, or with our flexible financing options.
  • Servicing and installing the best technology in the industry and products. This includes Water Furnace, Daikin, Arzel, Lennox, and other great brands.
  • Guaranteed headache-free HVAC maintenance for Collinsville customers. Weis is committed to solving your HVAC issues as efficiently as possible.
  • We also provide practical advice and suggestions to homeowners to avoid future problems with their HVAC systems.
  • A dedication to heating and cooling safety.

Call Your Collinsville HVAC Experts Today

When you need HVAC service or installation in Collinsville, IL, please request service today. Weis Heating and Cooling offers free quotes, too, and is dedicated to keeping your HVAC systems in optimal condition. Let us know how our Collinsville HVAC techs can help.

    Special Offers

    Weis Comfort Systems offers multiple specials and discounts every month for our services. These special offers make Weis Comfort one of the most affordable choices in St Louis and Illinois for getting your AC unit or furnace repaired/replaced. Please see below for our latest offers and contact us at 636-343-8440.

    • Emergency Service

      For fixing HVAC problems fast $25 off
      • Trained, certified techs
      • Guaranteed quality service
      • Repair warranty
      • Same-day service available
      Claim Offer
    • AC + Furnace

      Great for upgrading systems $150 / month
      • New heating system
      • New AC system
      • New water heater
      • Free 2-year maintenance
      Claim Offer
    • Air Humidifier

      Great Aprilaire Deal $50 off
      • Top-tier brand
      • Guaranteed quality service
      • Energy efficient
      • Fast installation time
      Claim Offer

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    Serving St Louis and Illinois for over 80 Years

    Richard Weis returned from WWII asked for the keys from his dad and re-opened the shop as Weis Heating Company. He had a process and a plan to economically install central heating in all new homes with the new blower-driven gas furnaces. The housing boom that followed the war allowed the company to expand rapidly.

    Nearly 80 years later, the current Weis generation continues the tradition of providing a quality, affordable HVAC service for our customers. At Weis, "When you live and sleep comfortably, so do we."



    Testimonials

    • Excellent Service

        St. Louis, MO

      We have been customers of Weis for over 40 years. We have never even considered calling a competitor because we have never had too. We have always received excellent service and the technician's are outstanding.

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    • Fixed Right The First Time

        St. Louis, MO

      Could not ask for better service!! Frank was prompt, knowledgeable and very courteous! Weis Comfort Systems was quick to respond and the price was affordable. The Knowledge of their staff is always spot on, quick but fixed right the first time. Thanks Weis and Frank!!

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    • Excellent Customer Service

        St. Louis, MO

      As a long-time Weis customer, I consider it an exceptional company. They are competent, dependable, efficient and courteous. Weis has installed and serviced our heating and cooling equipment for nearly 20 years. When our thermostat went out on the coldest night of the year, Rich got us warmed up again in short order. Rich is […]

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    • Clean, Neat, Pleasant

        St. Louis, MO

      Service person arrived during appointment time frame, phoned ahead, worked in a timely manner, was clean, neat, pleasant, and wore protective boots inside the house (raining outside.)

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    • Highly Trained and Professional

        St. Louis, MO

      I have been doing business with Weis Comfort Systems for over 10 years and would recommend them to anyone. They are professional in their approach to customer service. We have had various personnel come to our home from Weis and without exception they are highly trained and professional.

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    • They Never Disappoint

        St. Louis, MO

      Our family has been doing business with Weis for several years and they never disappoint. The owner and employees are top notch at what they do and consistently deliver a high level of customer satisfaction.

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    • I Highly Commend Them

        St. Louis, MO

      This crew timely arrived ,went immediately to work, and completed the new A/c Installation within the time frame they had estimated. They did a fine job and I highly commend them for it. Your company was beyond belief in getting my new AC on line as quickly as you did!! When it failed,it was 90+ […]

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    • Friendly and Courteous

        St. Louis, MO

      I have my heat pump serviced twice a year by Weis Derousse in Red Bud and I always request Frank to do the job. He is friendly and courteous and he was the one who put the unit in years ago. Jamie in the office is also a pleasure to talk to.

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    • Impressive

        St. Louis, MO

      Great Service, awesome price,great job, awesome people. If the ratings will go from 1 to 7 stars, I will rate them 7, 5 stars is not enough for the service, professionalism , quality of work, and friendliness the Weis employees show us.One word can describe Weis " IMPRESSIVE "

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    • Pleased With The Service

        St. Louis, MO

      Weis installed a new system for me two years ago and fulfilled the contract as agreed. Since then, they have serviced it. The service calls have been within the stated hours and the serviceman has been professional and helpful. Front office communications have improved over the last year. I'm currently pleased with the service.

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    • Certainly Recommend Them

        St. Louis, MO

      Weis was able to send someone out the same day I called, which was good since it was in the mid 90s and my AC wasn't working at all! Rich was able to diagnose and fix my AC unit in under 30 minutes, getting our house back to being cool again. They were very upfront […]

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    • Knew What He Was Doing!

        St. Louis, MO

      Great Service! Called on a 93 degree Sunday when my 91 year old father's air went out. Weis Comfort Systems arrived within a couple of hours, had the unit fixed and cooling within less than an hour of arriving. Frank was polite, friendly and most important knew what he was doing!

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    • An Honest Job

        St. Louis, MO

      Jim was very courteous and professional about what he would be checking on my air conditioners. Out of the 3, I only needed one part. I felt he did an honest job.

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    • I would Recommend Weis

        St. Louis, MO

      we purchased a ****** A/C and Furnace thru Weis Comfort Systems this past June. Everything went very smooth from the very beginning of the process thru installation. Everyone was very professional and respectful. I would recommend Weis Comfort Systems to anyone.

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    • Great Company

        St. Louis, MO

      Arrived at the time told, very professional. Quickly found the problem and had the parts on the truck. Problem fixed and the house was cooling down within an hour. Great company, have used them for over 10 years, always happy with the service.

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    • Very Pleased

        St. Louis, MO

      We needed a new furnace and a/c for our home and looked into several different options including the company we had been using for the past 15 years. In the end we went with Weis. Weis came recommended by a coworker and we have no personal or professional relationship with the company. The bid process […]

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    • Pleasant and Helpful People

        St. Louis, MO

      Weis Comfort Systems Inc. has pleasant and helpful people working at their office and in the field. Rich was the tech that visisted my home today to do a furnace check. He arrived at the earliest part of his suggested time. He was quick, neat, and I felt comfortable with him being in my home.

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    • Heartily Recommend Their Services

        St. Louis, MO

      We have been a customer of Weis for over 40 years. Every installation or repair has been completed with efficiency and timeliness. We heartily recommend their services.

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    • Excellent Workmanship

        St. Louis, MO

      We took advantage of the annual mtce. pkg. with Weis. They contacted us to remind us of the furnace mtce and we set up an appt. The technician was courteous and professional. We have used Weis for all our mtce needs and on occasion a repair or two. Not only did they install this furnace […]

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    • Very Professional and Efficient

        St. Louis, MO

      Weis comfort systems is a very professional and efficient business, yet friendly and customer oriented. I would in the future and have in the past heighly recommend this company.

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    • Weis is a Great Service

        St. Louis, MO

      weis is a great service. prompt, helpful, clean,l friendly, do a great job. i look forward to seeing them.

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    • Go to Weis

        St. Louis, MO

      Great job as always. If you have heating or AC concerns go to Weis.

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    • These Folks Are Pros!

        Ladue, MO

      Thanks to Jim E and the Weis team for the long day of work today! The house is finally cooling down and we'll sleep better tonight because of your work. These folks are pros!

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    • Serviced Our Furnace for Many Years

        Red Bud, IL

      Frank is very knowledgeable about his job and always leaves everything the way it was. No cleaning up after him. If you have a question he will explain the answer in a way that you can understand. He has serviced our furnace and A/C for many years

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    • Totally Professional

        St. Louis, MO

      Weis is totally professional in all aspects of their services. We have been using this company for decades for regular maintenance, emergency calls and for installation of new equipment. They arrive prompltly and leave the work areas very, very clean. We also think Weis is most honest with their repair assessments and their charges.

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    • Always on Time

        Ellis Grove, IL

      We have been a customer since we built our home in 2004. We would recommend Weis Comfort to anyone. Any concern we have had they are there to address it. Wonderful workers always on time and represent the company in a professional manner.

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    • Best in the Business

        St. Louis, MO

      Jim Wanko and the pros at Weiss are the best in the business. They do exactly what they say they will do, when they say they will do it. I love my new furnace, particularly right now! My house has been around a long time, and I always learn something new about the systems, my […]

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    • Go-To HVAC Guys

        St. Louis, MO

      Hired these guys on a recommendation to take a look at my furnace. They don't overcharge, Show up on time, and are unobtrusive. Even if they didn't have a loyalty program, they'd still be my go-to HVAC guys.

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    • Thank You Guys

        Manchester, MO

      Had my install today. Daikin air conditioner working great. House nice and cool. Humidity enough to make house very comfortable. Thank you guys for doing a fine job.

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    • I Highly Recommend Weis

        St. Louis, MO

      This company does its job quite well – in all areas from regular maintenance to repair to installations of new equipement. I highly recommend Weis.

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    • Prompt and Thorough

        St. Louis, MO

      Prompt and thorough.

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    • People You Can Count On

        Belleville, IL

      Kent came out and found some pretty glaring problems created by the last company that installed our AC unit. He got us straightened out and fixed what could have been some very costly damage down the road. It's nice to have people you can count on to do the job right!

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    • Prompt, Professional Service

        St. Louis, MO

      Prompt, professional service by a company (**************) that has serviced our HVAC equipment for years. Thanks!

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    • Very Good

        St. Louis, MO

      Timely, professional service, groomed service person. Routine and emergency service have been very good.

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    • Excellent

        St. Louis, MO

      excellent – here on time -did everything that was expected and was pleasant.

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    • I Would Recommend

        St. Louis, MO

      I WOULD RECOMEND THE SERVICES OF WEIS COMFORT SYSTEMS TO ANYONE.

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    • I Would Recommend

        St. Louis, MO

      I WOULD RECOMEND THE SERVICES OF WEIS COMFORT SYSTEMS TO ANYONE.

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    • Convenient and On Time

        St. Louis, MO

      Very convenient and on time. Polite and easy to work with.

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    • Excellent Service

        St. Louis, MO

      Excellent service, and support. ****** was very professional.

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    • Very Pleased

        St. Louis, MO

      I had a 2-hour window for my air conditioner maintenance appointment and Rich actually showed up early! So nice to not have to sit around to the last minute. He was very professional and friendly. Weis, and specifically, Rich, were recommended to me by a friend who has been using their services for years and […]

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    • Absolute Pros

        St. Louis, MO

      We've been Weis customers for all of the 26 years we've owned our home. Mostly it was for checkups and installation of a humidifier. We purchased a new HVAC system two years ago that came with a maintenance package for two AC checkups and two Heater checkups. We just had the second AC checkup and […]

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    • Strongly Recommend Them

        St. Louis MO

      The company always does well to remind you of your updates when you need to have your services checked. They always send out very nice men who know what they are doing and explain things to you. I would very strongly recommend them.

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    • I Recommend Weis

        St. Louis, MO

      When looking for HVAC – the only thing I want to know initially is price on these reviews. So people out there who want to know – Weis is $2300 cheaper for AC and Furnace combo. We have a smaller house and only need 14 Seer – AC and 90% efficiency on furnace. Mr. Forness […]

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    • They Looked Out For Me

        St. Louis, MO

      A day after an appointment to fix the two-year-old A/C in my new home, the friendly folks at Weis notified me that the previous homeowners had purchased a 10-year parts/service warranty…and they had already refunded the repair fee for the work my unit had needed. Unexpected, and very welcome – they looked out for me […]

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    • Highly Satisfactory

        St. Louis, MO

      Highly satisfactory. Friendly and courteous service

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    • Always Professional

        St. Louis, MO

      Always professional, on time and great service!!

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    • Reliable company

        St. Louis, MO

      Excellent service, on-time, and thorough, and personable. Weis Comfort Systems is a fine, reliable company for your HVAC needs.

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    • I am extremely pleased

        St. Louis, MO

      Superior Service! Technician truly knows my GeoThermal system. Weis has been performing my repair and preventative maintenance actions for a couple of years & I am extremely pleased.

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    • Five Star Review

        St. Louis, MO

      [no comment]

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    • Five Star Review

        ST. Louis, MO

      [no comment]

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    • We could not be happier!

        St. Louis, MO

      We have used Weis Comfort Systems for over 12 years for all of our heating and cooling needs, in two homes. They are always courteous, quick, honest, fair, and efficient! They just installed a new furnace and air conditioner last winter and we could not be happier! Fabulous company!

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    • All calls were handled professionally

        St Louis

      Weis has been servicing our furnace and air conditioner for decades. Mostly the service calls are for regular maintenance. A few have been for repair. All calls were handled professionally. I can't remember having to call a second time because the problem was not corrected. Weis also installed a new furnace and air conditioner during […]

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    • Customer Service is Excellent

        St. Louis, MO

      Bill is very thorough as he has been in the past servicing my furnace. His customer service is excellent. Always willing to answer any question I may have on the operation of furnace,thermostat.  He is an asset to have representing the Weiss Company.

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    • Efficient & Practical

        St. Louis, MO

      Customer friendly and knowledgeable. Rich was efficient and practical. I appreciate the service and customer service!

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    • Friendly & Courteous

        St. Louis, MO

      I have my heat pump serviced twice a year by Weis DeRousse and I always request Frank because he is the one who put the unit in years ago. I trust him to do a great job and he does. He is friendly and courteous. Jamie is very friendly always when I call the office.

      155
    • Impressive

        St. Louis, MO

      Great Service, awesome price,great job, awesome people. If the ratings will go from 1 to 7 stars, I will rate them 7, 5 stars is not enough for the service, professionalism , quality of work, and friendliness the Weis employees show us.One word can describe Weis " IMPRESSIVE "

      155
    • A Great Company

        St. Louis, MO

      Weis was great as usual. I had forgotten the scheduled service until I received a quick phone call that Bill was on his way. No problem. Friendly and affable as always, he carried out his duties and pronounced everything 'okay.' This is a great company and watches my comfort all year long.

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    • Very Reasonable

        St. Louis, MO

      Weis was able to send someone out the same day I called, which was good since it was in the mid 90s and my AC wasn't working at all! Rich was able to diagnose and fix my AC unit in under 30 minutes, getting our house back to being cool again. They were very upfront […]

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    • Excellent Service

        St. Louis, MO

      They provided prompt and excellent service when AC quit working. No charge, since system is still under warranty.

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    • Courteous & Professional

        St. Louis, MO

      The service personnel have been to my home several times since we moved to our new home in 2014. We were unfamiliar with geo-thermal and the people at Weis have explained the workings of the system and backup heat or cooling. Repair men are always courteous and professional. Good to have Weis for services.

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    • Five Star Review

        St. Louis, MO

      [no comment]

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    • Five Star Review

        St. Louis, MO

      [no comment]

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    • Five Star Review

        St. Louis, MO

      [no comment]

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