I had Leo come out to diagnose a leaking water heater. He mentioned that there were two possibilities. Without going into both in detail, after ruling out and confirming one possibility as not the issue, the other possibility turned out to be spot on. Unfortunately, this possibility forced the need to replace the unit. I do think the overall cost to replace the unit was pretty pricey, but the manager at Allen was kind enough to provide me with a 15% discount, which I hugely appreciated!! Leo's technical knowledge, professionalism and competence to diagnose and replace the water heater was second to none. I highly recommend Allen Plumbing for any Plumbing needs you might have. read more

Checked electric in our home found loose wires etc the technician was awesome I highly recommend

Tanner is our go to, he is listens to our concerns and he takes the needed time to diagnose the equipment. Never tries to sell us unnecessary repairs. read more

We were customers for 7 years dating back to when they were locally owned and operated. They used to be a company I knew I could call if something went wrong in our home. Once ownership changed, we noticed some differences and felt a little weird but still held on. What a mistake. They quoted us HVAC units all the way up to $25K at the time. We live in a 3000 sq ft home. They replaced only our furnace in 2022 for almost $9K. We followed warranty requirements by scheduling annual maintenance and inspections and changed the filter regularly. Allen constantly rescheduled our appointments because there were other more important callouts. One visit, they didn't replace the filter because the technician didn't have one in their vehicle. This should have been included but they did not offer to bring one later. At one point, a technician suggested we get a dehumidifier for our basement. With Colorado's dry climate, that's unnecessary. In Nov 2025, we had a technician come out to do our annual maintenance on our newer furnace. Somehow Jan 2024 and then, the heat exchanger had a large amount of rust built up. If you aren't aware, over time the rust causes cracks and in a nutshell will lead to carbon monoxide leaking into the home. No investigation was carried out into why there is rust on such a new unit under average use circumstances. No warranty claim was talked about. However, we were offered everything under the sun for $3310.00 that did nothing to resolve such a dangerous situation. I said I needed to talk to my husband because this seemed excessive to hear considering this is a new unit. It was close to the holidays and time got away from me. Fast forward to July 2026, our A/C seems to be acting weird and not blowing cold air when it was 103 outside. I tried scheduling an appointment with Allen by calling on Mon around 4pm. They said someone would call me back. No call. I went on their website and was able to book online. I scheduled for Tues between 12-6. I received a call Tues morning that the timeslot wasn't actually available for that day. Not sure why online scheduling is even an option. They said someone could come on Wed between 12-4 so we booked that. My husband was home in our basement all afternoon with our child trying to stay busy and keep cool while waiting for a technician. The thermostat in the house read an internal temp of 90. We did not receive an update from the company and had to call to find out where the technician was. They had to reschedule us again because there were so many call outs yet again. I cancelled our appointment and called a locally owned and operated company who could get out the next day. The other company's technician found many items that were not properly serviced during our inspection. I showed them the photos and estimate from our November furnace inspection. They were shocked and explained the seriousness of the issue. After they left, my husband and I both tried contacting Allen many times regarding this. After a week and a half of us calling and submitting contact us requests online, we finally received a call back. We were told they could send someone else out but according to their notes, I said I would talk to my husband and never called them back. I was shamed by a member of the management team because I needed to consult with my husband about what felt like a bogus recommendation to just solicit money. If you read the estimate, nothing offered has anything to do with the rust on the heat exchanger. Allen did offer to send out their "most experienced" technician to take a look, and I could schedule directly with Danielle because they are aware of issues with scheduling and dispatch. I made it clear that Allen Service is not welcome in my home due to negligence of my family's safety. I hope Allen Service doesn't put anyone else at risk of major safety concerns just to exploit their customers. It's hard enough when things need to be replaced in your home. Being taken advantage of like this has caused undue excessive stress and financial hardship. read more

See all

My air conditioner wasn't working, and Allen Service sent a tech to diagnose and fix the problem. The tech suggested installing a condensate pump. I agreed and scheduled an appointment for the following week. A few hours later, the air conditioner stops working. I call Allen the next morning, and they send a tech from one of their affiliate companies to fix the issue. The tech failed to fix the problem, so I called Allen again the following business day. The first representative assured me that someone from dispatch would call me the same day to schedule a more timely appointment. That didn't happen, but I did receive a call from a second representative, who tells me she will call dispatch to see if there's any open availability. She informs me that dispatch will follow up shortly. After a few hours, and having not heard back from Allen, I call yet again and speak to a third representative, who informs me that my original appointment has been pushed back six days. I would have to wait ten days for a tech to come back to fix an issue that they failed to fix the first time, and that I had already paid for. If you're having trouble keeping up with how many visits Allen has made (2), and how many phone calls I've made (4), I don't blame you. My suggestion would be to use another company for your HVAC needs, because Allen has terrible customer service. read more

The repairman (Sam) was on time, very professional, & completed my AC repair quickly. Thanks for the great service, Sam! read more

They have now successfully replaced our sewer line and we liked the quality of service, so we hired them again to do overdue AC maintenance. Also we're very satisfied. Knowledgeable staff, and professional. We will use them for all our future HVAC and Plumbing issues. read more

Loved working with these guys. Great service, very friendly, and everything got fixed!

I had a broken valve on my whole house water filter and also needed a bypass loop incorporated into the plumbing as the previous owner neglected to add that. Tyler was professional and got the job done. There was the rather typical upsale attempt typical of Allen Service which I declined without prejudice. The new plumbing for this filter system is fairly compact and had to be due to a bit of limited space in that particular utility closet. Tyler did a fine job. Allen Service is probably not the most economical company to deal with, but they usually give several options to choose from and the work is always top flight. read more

We had a furnace and air conditioner put in January of 2025. There have been several calls about problems, and the last one was about the air conditioner. The man who came to solve the problems was very knowledgeable and competent. He determined that the air flow was bad. We talked about it and he pretty much solved the problem, but my complaint is that we should not have this many problems . Obviously the house was not examined close enough to determine the needs of this particular home. That should have been done before just putting in a furnace and air conditioner arbitrarily! Granted, we have not had to pay extra for the service calls, but this should not happen to begin with!! I am not happy with Allen Service right now. read more

Kevin was thorough and explained what he found with our heater and AC unit . It was a routine maintenance. read more

Mason and Omar cleaned my kitchen sink drain. It was completely clogged with grease, and other stuff after 35 years! used a high pressure cleaning hose bringing the plumbing line back to like new. Both guys super professional, and friendly! Pricey, but worth it in my opinion! read more

My mama always told me, "You get what you pay for." I have been working with this company for about 10 years now, and I have been very pleased with the quality of the service and the products and equipment they recommend. I have no complaints. I will continue to use this company for ALL of my plumbing and HVAC needs. Thank you Allen Service Plumbers. I really appreciate you, the service and the support you provide. read more

Sasha came to do an HVAC inspection for us. All was good and he pointed out some things to keep on eye on without trying to upsell unnecessary work. I appreciate his honesty and good advice. read more

Thank you Benjamin Siler!! Our AC suddenly stopped working and Allen Service squeezed us in same day. Benjamin was very polite and professional. He was quick to find the problem and we were able to feel cool Air again in no time. Thank you again! We appreciate the help before this heat wave of a week. The value of cool air again same day is so worth it. read more

Benjamin was a very knowledgeable and very professional technician- great job Allen service

I really hope Brian from Allen Plumbing/ Heating no longer works there, but he probably does.Worst service we've ever had. He's rude, inept and a poor communicator. Never consulted us on "work" he did that was explicitly not in the contract. Ruined a wall and told us the flooding his crew caused wasn't that big a deal. My family recommends finding another service, no matter what their rating or reviews say. UPDATE - This review remains at one star, and my comments stay. It was written after careful thought and well after all responses and work were done by Allen. read more

ALLEN SERVICE has been my HVAC company for over 5 years and I have always had great professional techs and today Benjamin was the guy. He like all their employees was polite and professional at their jobs. Thanks. read more

Another day, another canceled Allen appointment. The company has grown beyond its capacity to handle its business. This was the 2nd appointment in two days they missed. read more

Waited 4 days for completion if replacing 2 tiny shower valves. Membership didn't help at all!!

Always great service. Plumber Nathan Whitten was on time, very professional, and so helpful, he even went shopping to get just the right replacement items I wanted and chose well. My new shower is beautiful (no more squeaks) and the kitchen faucet does not leak anymore. Thanks Nathan!!! read more

Beware of technician Jasmine. She will quote you thousands of dollars for a mere cleaning and use high pressure sales tactics. I'll never use Allen!! read more

We needed help fast since the furnace for our 95-year-old mother quit working. The house was getting cold fast. We called Allen and they set up someone to troubleshoot the next morning. Jim Maule was the excellent technician. He got everything working in less than an hour. The best part was that it took just a tune-up for $49 to fix the furnace. Thanks Allen Service! read more

Cody serviced our tankless hot water heater yesterday when the tenant called saying there was no hot water. He called to give us the rundown and there didn't seem to be a problem anymore! Everything was working. Appreciate the honesty! read more

Came on time and was very friendly. Great service tech, did repair for a great value. Talked to me about some needed repairs on an old furnace and currently considering a full furnace / AC replacement with them. read more

After having a different tech come in to fix a defrost issue on our electric heat pump and things just seemed to get worse, Sasha came on an after hours emergency call when the heat unit inside would not shut off no matter what we did (including Sasha). He will need to go through the whole system to trace back the problem. Got late so he's going to be back today. He was very knowledgeable and explained things carefully and completely. Fortunately we just put it in and it is under warranty. We also have a service membership so at least we won't incur any charges. read more

After 2 cancellations by Allen Service, Chilson came to replace 4 out of date smoke detectors and also installed a whole house surge protector. Very polite young man who answered all my questions. The 4 stars instead of 5 is not due to his service, but because of the previous 2 scheduled cancelled appointments. read more

We have a clogged/ broken disposal for over a week and Allen has cancelled their scheduled appointment with us 3x. I encourage you to save time and call someone else. read more

Allen Services provided prompt professional services in regard to a damaged refrigeration unit. Their service technician was extremely thorough and could not have been more gracious in explaining what was being done and why. read more

What a scam they are. I should have looked at the yelp rating before having them come out. They wanted to charge me $465 for a 30-45 min job with about $25 in materials. Then wanted $89 from me for turning down that ridiculous price. Do people actually fall for that? ER doctors saving lives don't even make that kind of money. DO NOT RECOMMEND EVER USING THIS SCAM COMPANY. read more

Vee did an excellent job. My only complaint is that Allen is so expensive. Otherwise I trust them to repair things so I don't have to worry about follow up issues. read more

Even tho they were on the pricey side the quality of work was outstanding. Quality parts and service.

Aiden came for a call to Allen' s HVAC due to a request from me regarding a slow toilet. We reviewed the situation and discussed a lot of possibilitie. When he left I was pleased with what had been discussed. I received a lot of informatio. read more

Braeden and Tyce were polite and prompt when they did my annual electrical inspection. They explained what was needed to bring my older home up to todays codes and gave me a email that my husband and I can look over and decide at our convenience what exactly we want to do. read more

Our hot water heater started leaking a few months ago. The serviceman came out the next day. He was very nice but we ended up spending over $5000. I was urged to get the top of the line with the idea it would last for 15 yrs or so. I am retired, on a fixed income and have come to realize I shouldn't have felt pressured to spend so much. At the time our water was turned off, didn't have time to research other options and just took the advice of the serviceman. I wish he would have looked at our situation and suggested something middle of the line, even if it didn't have the longevity of the one he sold us. read more

Bunch of liars and cheats. They came out to see what was going on with my AC and they said it's broken you need to replace the whole unit. For over 10 grand! We called someone else for a second opinion and all it needs is a cleaning and some more refrigerat, 400$ !!!! Wow huge difference. Last time calling them. read more

$753 to fix a leaky shower faucet. Part on Amazon for $19.84 . Less than 1 hour. You do the math!

Do NOT use this company!! They charged my 94 year old Mother over $600.00 to replace a $39.00 part for her furnace. It took the tech 2 minutes to replace it. I was never even given a quote. The entire interaction was a joke. The tech was acting like he didn't have the correct part and telling me that if he had to call a parts supplier it would cost $300.00 just for the call! Then after looking 3 different times all of a sudden he found the right part in his van. Next came the surprise bill of $628.00. The tech knew that I was shocked and upset by the price but claimed there was nothing he could do. He also claimed to have given my Mom a discount for being elderly and a discount because my deceased father was military. I called and got a quote from a different company the next day and it was less than $250.00. I do feel that I need to report them to the BBB as that is defrauding the elderly. I also tried reach out to them right away and was told I would get a return call but no one has bothered to contact me. I want large companies to know that this is so wrong. I'm hoping by posting this that I can prevent them from doing this to the next customer. read more

My technician was very thorough during his inspection and took time to explain it all to me. He even showed a video of the insides & told me what to expect going forward. He was very polite , knowledgeable, & personable. I would recommend Allen Service to my friends & family. read more

Loveland: Unethical taking advantage of single lady in her 80s. My neighbor received a written quote for labor (which I've seen) to replace two lavatory sink faucets: $1,000 each ($2,000 total) plus the cost of the faucets. A DIYer would spend a maximum of 1 hour each - a pro, maybe 30 minutes each. Oh - but the work is warranteed and a DIYer's isn't. UNBELIEVABLE read more