ATTENTION: Use of this site constitutes agreement to TERMS & CONDITIONS


Download PDF

Here’s why 888-HEATING is quite simply THE BEST at what we do:

-100% unconditional money back guarantee. If you are unhappy with a system that we have installed, We will remove it and return 100% of your money. But, we go much further. You pick out one that you like and we will install it without charging a DIME of labor!

-Fixed right or it’s FREE!

-Free “same day” second opinion on repairs or replacement. If you’ve been told that your system needs repairs or replacement, We can verify it for you and give proof of our findings. No charge and we’ll do it TODAY.

-On time appointments. No “time windows”. We’ll be there when we say we will.

-No extra charges for weekends or “after hours”. We’re here to help … just ask.

-Drug tested employees. We were among the first in our industry to initiate drug testing.

-50 state criminal background checks. Most background checks that our competitors do, only check a few counties. We check all 50 states before hiring.

-Specialists in Forced Air furnaces and A/C systems. Many other companies sometimes send a refugee from the plumbing or electrical dept to try to figure out your furnace or air conditioning problem. 888-HEATING never does that. You always get a qualified HVAC professional.

-We offer a wide variety of replacement equipment to meet your needs. No one brand is best. We’re happy to discuss your many options.

-Free estimates for new equipment. We’ll meet you in the evening or on a weekend for your convenience. sitemgr_2_image_BBB


888-HEATING (Formely Gravlin)



    finally a solution
By Madelyn

I had a furnace problem that I have had various companies look at over the last three years. No one had a viable solution until I found Gravlin AC & Heating. Ted and his staff looked at the problem, had a solution within 5 mins. The installation was done within 2 days. Everyone at Gravlin's was very professional and easy to do business with. Thank you Tom Martino for your referral list. Thanks to you and Gravlin's I can check a big "to do" off of my list.

    WOW, Great Service
By Nancy

"I received your name from one of my neighbors at 9:30, contacted you at 10am after going online and printing the service coupon. Steve the technician arrived at 10:30 and I had heat again by 11! Wow, that's great service!"

    Polite & Professional
By Ron

Your technician was very polite and professional.

    Polite & Professional
By Van

Everyone was very polite and professional. Great job!

    Excellent Service
By JPizano

Very professional company,they came right on time for the appointment and the technician went the extra mile in costumer service, I will definetly use them for future needs. Pros:Same day service,excellent costumer service! Cons:None,very good company

    Professional and Courteous
By Tony

Gravlin A/C and Heating has been very helpful to us with our decision to purchase a new air conditioning unit for our home. All were great from presenting the quality systems, to the installer that installed our system, to the office staff, all of whom are professional and courteous. I would highly recommend Gravlin A/C and Heating.

    Video Camera
By Heidi

Loved the video camera! Great way to show a homeowner exactly what you are talking about.

    Far the Best!
By Chris

I shopped around. You guys were by far the best!

    Great Company
By pwelker

Called them on a Sunday morning (10 degrees outside), spoke with a REAL person, technician was at our house/had the problem resolved within 1.5 hours. Technician also stated that if he hadn't made the correct diagnosis, the monies paid the first day would be applied toward a future call to correct the problem. REAL customer service! Pros:Excellent response, no additional fees for Sunday morning service, excellent, knowledgable and respectable technician. Thank you is all I have to say! Cons:Absolutely none - would refer/use them again without reservation.

    Will use again!
By melissastafford

Service was prompt, efficient, and courteous! I called with a non-working furnace the day before Thanksgiving and they were able to send out a technician that day. The furnace needed a new part, which had to be ordered and would not be available that day. The technician was able to do a "work around" so that we had a temporarily working furnace. After the appt that day, their office called to schedule a time the next week to install the new part. They waited to charge me till the next part was installed. All in all, it was a very good experience and I will not hesitate to call this company again, and will definitely recommend this company to others.

    Great Service
By Amber

Able to get our old furnace to work while waiting to get it replaced. Gave good explanation on how everything worked before he left.

    Thorough Explanation!
By Margie

I loved the thorough explanation of any question we asked.

By Barbara

Barbara from N/A Was very polite and answered all of my questions

    Excellent Company
By vaduke

The furnace recently started acting up, so I called this company. A real person answered the phone (no going through menu after menu after menu to try to find someone to talk to) and set up an actual appointment time, not a window, for the technician to come take a look. The technician showed up on time, checked the furnance, explained in detail what needed to be done, made the repair and cleaned up. He was extremely courteous and had the furnace working again in a very short time. I'll definitely be using this company again. Pros:Phones are answered by real people. They set up definite appointment times, not 4-hours windows, for the technicians to arrive. Everyone I talked to was pleasant and helpful, and the technician (Jimmy) was great. Cons:None

    I would recommend
By Nancy

I was very pleased with the quick response I received, the willingness to work with my schedule and the knowledge of the individuals I dealt with. I would definitely recommend Gravlin.

    Excellent company!
By Sean Parker

Had Gravlin come out to look at our malfunctioning AC unit. Was told late last summer by Horizon Mechanical that the unit was shot and we needed an entirely new AC system to the tune of over $5000! The tech from Gravlin checked out the unit and found a simple circuit breaker issue which fixed our issue. The system runs great and we could not be more pleased. They are an honest company I would recommend to anyone!

By Wilma

Everything was great from start to finish!

    Fast and first-rate
By Scott

Blower on furnace went out during a hot spell (so no air conditioning). Other services had steep extra charges for weekend or emergency services, and couldn't even get here for two or three days. Gravlin was here on the same day, no extra charge, and although I didn't ask about pricing, I found their "StraightForward Pricing" to be very reasonable. Work was explained, professional, with no surprises. Even did extra checks on the condition of my furnace. Pros:Same day service, reasonable and affordable (and a nice guy). Cons:None... wish I knew of them for previous needs.

    Professional & Knowledgeable
By John

Very professional and knowledgeable people.

By Outstanding Customer Service

Mark S from Centennial When we awoke to near 0 temps and no heat, we contacted Gravlin and promptly received a call back. After a brief description of the problem, the tech provided a quick way to resolve the issue myself saving me $$$. I highly recommend an outfit such as this for their integrity.

By Bob and Shirley B.

Brent for Gravlin was very informative with his knowledge. He's a keeper!

By Lois S.

Garrett with Gravlin was clean, polite and thorough. You are lucky to have him as an employee.

    Thank you again!
By Ron and Nancy P.

Ron and I just wanted to send you a note of thanks. We appreciate very much your great customer service. These days that is a very rare idea to most people. The extra $50 was a great surprise and is very much appreciated. We will most definitely tell others about you and your great service if any of them are looking for heating and air conditioning.

    Highly Recommend
By Paul P

We had our fan motor burn out. After several calls to companies, I remembered “The Referral List” and called Gravlin. They came out the same day and with very prompt response. We like to run our fan 24 hours to keep the house humidified and equal temperature in all rooms across the three floors. It was suggested we purchase an upgraded fan that would save us money and energy. He was right! We also had other problems that were explained to us allowing us to make a decision on what roads to take. We were so impressed by the service tech, we decided to purchase the service contract and have been happy all along.

By Harold M.

Josh is very receptive to our problems, very courteous and fixed the problem.

By Chris S.

Josh was very professional and helpful. He did a great job and was efficient with his time.

By Carla C.

Josh was great! Even though it was the end of the day and he was running late, he was pleasant and personable!

By Patricia C.

Josh took the time to educate me on what he fixed, why and how to better use my furnace.

By Tanya S.J.

Josh's attitude was awesome and the scheduler was great also! Very professional and knowledgeable.

By Virginia N.

Professional, N. from N/Aknowledgeable and personable. Josh is an asset to your company!

    Very ethical!
By Jennie D.

My brother was in town and could do the repair. Josh gave us that option and saved me money.

    I will call Gravlin as my HVAC company.
By Berlin B.

I called in response to their Denver Deal coupon. I really appreciated the no pressure sell.

By Leroy W.

Josh was helpful in providing tips about furnace care.

By Leon H.

I am very pleased with Josh at Gravlin Heating and Air Conditioning's service.

By Terie M.

Josh was awesome - explained and gave options.

By T. N.

Josh did a great job and represents your company very well!

By Robert M.

Joining Gravlin's club was one of my best decisions.

    Did a great job!
By J. D.

Josh was very friendly, polite, efficient and answered all my questions completely.

    Great technician!
By ***

Very helpful in explaining the problem and service options.

By Trent R.

Josh was great - he arrived in a hour and called ahead to let me know. He did an excellent job and explained the work being done.

By Del R.

Josh is so nice and knowledgeable. He listens to problems and works until the system works perfectly.

By Elizabeth P.

Very pleased with Garrett. He was very knowledgeable about the furnace and air conditioner. We have confidence that things were done right.

By Candi G.

The technician, Garrett, is a very nice guy. He listened and explained well.

    Loyal customer.
By Neide F.

Garrett was wonderful and trustworthy. My experience with him, Josh and Ted (previously) make me a loyal customer.

    Well satisfied.
By Eva and Ed Y.

Garrett was very professional and the work was done correctly.

    Great help and saved me BIG $$$
By Mike Bennett

I just got done talking on the phone to Garrett from Gravlin heating and air. He talked me through a simple repair on my furnace with a limit switch that saved me the expense of a technician's service call, parts, and the headache of a cold house until the rest of those things happened. I found them on my church's website in the service directory so I called them and within a few minutes Garrett called me back and helped me out. It's only 20 degrees outside today, so a broken furnace would've been terrible. I am so grateful for Garrett and Gravlin Heating today and I would recommend them to anybody based on my experience. They could've easily come and taken advantage of our situation but didn't and I am so happy that I called.

By John M.

Brent was very professional and knowledgeable. He explained everything in a way that was very easy to understand.

By Scott P.

Very informative as to what my options were for the current repair and possible future repairs.

By Melanie B.

I was very satisfied with you service. Timely, efficient and knowledgeable.

By Judy C.

Garrett is awesome! I totally trust his work. Pay him well, you don't want to lose him.

    Great Service
By Chuck Cullen

Ted came out to diagnose an A/C problem I was having on a Saturday morning. Unfortunately due to a broken door handle, I got locked out. When Ted arrived, he looked at the lock himself. He offered use of his cell phone and looked up a locksmith. This was over the top GREAT service. You have a customer for life!

    Furnace Repair
By Paul Biniak

Gravlin came out and fixed my furnance on time, and the Service person explained everything and even went out to get the part on the spot. I was pleasantly surprised and would recommend them.

    Exceeded All Expectations
By Lawson P.

I came home to a cold house and my thermostat was blank. I called and was told someone would call me back. Garrett called me within 20 minutes and he was outstanding. He said he would make it out to the house but it would be few hours. I asked how could I tell if the problem was just the thermostat or the furnace? I was pleasantly surprised when he told me. He walked me through a few steps and we determined the problem. This included him sitting on hold for two minutes while we waited for the furnace to turn on. I was really impressed how much he could immediately tell me about the equipment just by providing him the brand and model number. My thermostat was over ten years old. He could have easily just came out and charged me the trip fee but instead I went out and bought a new thermostat. Within a hour after our call the new thermostat was installed and the heat was back on. He may not have made any money today but he did earned a loyal customer and referral.

    Very good company
By Frank Freeman

Last Friday My furnace starts acting weird. I called Gravlin at 04:00 am , About 15 mins later , the head guy called me back, and Had josh out two hours later. After testing the furnace for about hour , Guy comes back in and said there is noting really wrong with it , just a dirty fame detector and he clean it. The shocker he only charge me 89 bucks. 48 hours later furnace is running great . I will be calling these guys back for a tune up and cleaning

    Gravlin Exceeded our expectations~!
By ***

In Nov 13 I got a number of bids for replacement of our furnace with an energy efficient furnace, along with installation of an energy efficient air conditioner. The Gravlin bid came in significantly under the other bids. I was naturally skeptical and went back and forth with salesman Josh about what exactly I should expect. He patiently answered every question and assured me I would get the equivalent service and equipment from the other higher bids. Once assured, I contracted with Gravlin for the work. I was very highly pleased with the result. They were ready to install almost immediately. Ted Gravlin, the owner, was one of the installers, along with Josh. The work and equipment was exactly as we had contracted. They respected my property and cleaned up after themselves. Ted even helped with the price of an air cleaner I decided to install after instrallation had begun. I highly recommend Gravlin for heating and air conditioning work. They are honest, pleasant and neat, and the price was more than reasonable. p.s. We've lived here for over 16 years. Josh recommended we install a humidifier as long as we were installing a new furnace. I was skeptical of an upsell, but he explained why now was the time to do it, along with the advantages. We decided to do it and am very pleased with the decision so far. My wife, more than I, has noticed a difference in the comfort of the house with more humidity. Additionally, we added an air cleaner to the job. Haven't really noticed a difference yet, but hopefully I will when allergy season rolls back around. Bottom line - Hire these guys!



Address:    7338 S Alton Way #16H
City:    Centennial,
State:    CO
Zip:    80112
Phone:    (303) 770-2776

All rights reserved by