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Calfo Mechanical Contractors

Electric Vehicle Charging Station Installation - Materials Provided by Consumer, Central A/C - Install, EV Charging Station Installation,

About us

The problem with most "pros"? Too many bad habits. It's easy to get swept away in the day to day monotony, even for those that call themselves "pros". When it comes to hiring a heating and cooling technician, nobody wants to deal with being treated like a sale rather than a person, the use of scare tactics instead of education, or someone who just wants to get to job done quickly instead of correctly. All our HVAC pros go through 5 years of HVAC schooling, for a total of 10,000 hours of on-the-job training. And it's not just technical training either; it's training that focuses on you, on making you feel comfortable every step of the way. We will roll out the red carpet for you, both figuratively and literally. Red Carpet Treatment During every visit to a home, we lay out an actual red carpet to prevent any additional mess. But what may be even more important than just protecting your home is making sure you feel like you've received the best in customer service.

Business highlights

Emergency services offered
17 years of experience

Amenities

Emergency Services

Yes

Warranties

Yes

Accepted Payment Methods

  • CreditCard
Reviews
4.6191 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
83%
4
6%
3
4%
2
1%
1
4%

Filter reviews by service

Showing 1-25 of 191 reviews
Beth C.
Jun 2025
5.0
Sewer Main - Clear
The job was done correctly and efficiently, and we even learned how to potentially prevent this problem in future.

Martin S.
Jun 2025
5.0
Electrical Switches, Outlets & Fixtures - Install or Repair
Yes, I recommend this pro
$10,000
Outstanding, and if you need something, you will call them again

David H.
May 2025
1.0
Tim Calfo is a liar, a crook and does not deserve the privilege to own a business that serves the community. Do your homework before you hire this company. LONG story short, I purchased a new boiler system. I was promised the new system would work in the same manner as the old one, meaning my home was zoned for different areas with different thermostats (through circulator pumps). The technicians that completed the installation never took the time to learn how my home was setup and did not complete the zoning for the new system at the time of install. Instead of admitting their mistake, I was lied to multiple times and told my previous system was never zoned. (Which is a lie and verified by a 3rd party who has worked in this home prior to me buying it). Now, they want to charge more money to fix it because and zoning was not part of the original contract . This bait and switch type tactic seems to be a common theme for Calfo based on other reviews, they do this pretty often.

Judy A.
Apr 2025
5.0
Central A/C - Service or Repair
$4,000
The Technician, Christian Ray arrived on time, was very professional & did a great job with checking & cleaning my AC unit in preparation for the summer season. I would recommend Calfo & would request Christian for my next service call.

Rob A.
Mar 2025
N/A
Drain Line Breakage - Camera Locate
no review

Jean T.
Feb 2025
5.0
Sewer Main - Install, Replace or Repair
Yes, I recommend this pro
They were very porfessional. Had ample means of communications. And explained things very concisely for me.

Michael H.
Jan 2025
3.5
Central A/C - Service or Repair
Yes, I recommend this pro
Contractor was friendly and knowledgeable but pricing was not super transparent and we were upsold repeatedly.

John T.
Jan 2025
5.0
Gas Furnace / Forced Air Heating System - Repair
$14,000,000
We had the pleasure to have Rayan Vos as our lead service technician. He was a gentleman who educated us on what was going on with our system and what it needed to be corrected. He answer all our questions and make us feel comfortable with his work. I would definitely would ask him to work on any future projects.

Cassie B.
Jan 2025
5.0
Gas Boiler or Radiator Heating System - Install
I had Ryan Vos come out to service my steam boiler he is always a gentleman when he is here and helps me with whatever needs done, he is very professional, and knowledgeable Calfo has been servicing me for years and they are nothing but wonderful i would use Calfo for anything that needs fixed.

Alyssa D.
Dec 2024
0.5
Do NOT use Calfo Home Services! We have been loyal customers, spending thousands of dollars with this company, but their recent actions have been unacceptable and dangerous. We called them to address a gas leak, and their technician assured us that spending $2,200 would not only fix the leak but also extend the life of our furnace by two years. After the work was completed, the gas leak persisted. When we informed them, they refused to fix the issue unless we paid even more money. This is completely unacceptable, as their technician failed to resolve the problem they were hired to fix. I am currently pregnant and have a 10-month-old baby at home. This is not just an inconvenienceâ itâ s a serious safety hazard. Breathing in gas fumes puts my entire family at risk, and Calfo Home Services refuses to take responsibility for their mistake. We will never use this company again. Beyond losing our business for our home, we also own multiple rental properties where we would have used their services regularly. On top of that, my mother-in-law, who we referred to Calfo, was planning to replace her furnace and air conditioning with them this spring. Now, she will also be taking her business elsewhere and sharing this negative experience. Itâ s a shame to see a company we once trusted care so little about their customersâ safety and satisfaction. Their unwillingness to correct their mistake is a very poor business decision, and itâ s cost them thousands of dollars in future business. Save yourself the frustration, and go with a company that values their customers and does the job right.

Alyssa D.
Dec 2024
1.0
Gas Furnace / Forced Air Heating System - Repair
Do NOT use Calfo Home Services! We have been loyal customers, spending thousands of dollars with this company, but their recent actions have been unacceptable and dangerous. We called them to address a gas leak, and their technician assured us that spending $2,200 would not only fix the leak but also extend the life of our furnace by two years. After the work was completed, the gas leak persisted. When we informed them, they refused to fix the issue unless we paid even more money. This is completely unacceptable, as their technician failed to resolve the problem they were hired to fix. I am currently pregnant and have a 10-month-old baby at home. This is not just an inconvenience it is a serious safety hazard. Breathing in gas fumes puts my entire family at risk, and Calfo Home Services refuses to take responsibility for their mistake. We will never use this company again. Beyond losing our business for our home, we also own multiple rental properties where we would have used their services regularly. On top of that, my mother-in-law, who we referred to Calfo, was planning to replace her furnace and air conditioning with them this spring. Now, she will also be taking her business elsewhere and sharing this negative experience. It is a shame to see a company we once trusted care so little about their customers safety and satisfaction. Their unwillingness to correct their mistake is a very poor business decision, and it is cost them thousands of dollars in future business. Save yourself the frustration, and go with a company that values their customers and does the job right.

Pat W.
Nov 2024
5.0
Electrical Switches, Outlets & Fixtures - Install or Repair
Calfo technicians were efficient, professional, polite, helpful. They texted me as to their arrival time. They wore booties over their shoes to keep my floors clean. They did the work I wanted done well. I am totally satisfied with Calfo!

Daniel C.
Oct 2024
5.0
Electrical Switches, Outlets & Fixtures - Install or Repair
Yes, I recommend this pro
Prompt. Friendly.

Lindsay K.
Oct 2024
1.0
Electrical Wiring or Panel Upgrade
I helped a disabled friend schedule an emergency job - and Calfo was great it seemed like. They fixed her issue, she paid them, and this should be the end of it, right? Well, they told her that she needed an outdoor french drain, for over $10k. She has difficulty with executive processing, and I mentioned when I called initially that all jobs should be scheduled with me, her proxy. Well, that did not happen. What did happen? They took 100% of the money for this future job and disappeared for a few weeks. She was nervous that she was being taken advantage of, and in that time called other companies that informed her that she did not need the drain. Ok, different people have different ideas of how to fix an issue, thats fine. And she never heard back from Calfo anyway, so I called to cancel and to get her money back. That was over the summer. I called repeatedly. I was told repeatedly that a manager would call me back. This never happened. They would not let me cancel, but would never schedule a time to speak to my friend with me present so it could be handled appropriately. It gets better - a few weeks and we hear nothing (I have cancer - I have my plate full so it is difficult for me to deal with this too), but lo and behold! I get a text that Calfo is coming tomorrow (the confirmation text came at 5pm) to start the huge job! The only problem - they spoke to no one. Last they heard - we did not want this job to be done. My friend was IN THE HOSPITAL so they did not speak to her. They were just going to show up anyway. Thankfully I called immediately, but again, I can't cancel and someone will call. Thats the last I heard until they called again, months later, thinking I'm my disabled friend, trying to schedule AGAIN. They still have my disabled friend's $10k+. I don't think they have any intention of giving it back - they don't call her, they don't call me. And when I ask who an attorney would need to contact at Calfo about dealing with this, as they are never going to work it out with me - NOTHING, a manager will call me! Of course they will. Long story short, Calfo is holding at least $10k of my disabled friend's money and I guess she isn't ever going to get it back. If you read this far, just keep this in mind.

Kathy S.
Oct 2024
5.0
Faucets, Fixtures and Pipes - Repair or Replace
Yes, I recommend this pro
They came very quickly when called.

Curtis K.
Oct 2024
4.5
Electrical Switches, Outlets & Fixtures - Install or Repair
Yes, I recommend this pro
Work was done right and efficiently thank you for your services

Gretchen G.
Sep 2024
5.0
Gas Piping
Yes, I recommend this pro
My technician was very knowledgeable and polite. He answered all of my questions and explained the installation process for my stove gas cutoff valve. I would highly recommend Calfo services.

Jackie C.
Sep 2024
5.0
Electrical Switches, Outlets & Fixtures - Install or Repair
Yes, I recommend this pro
The service person explained what needed done to correct the problem.

Gregory C.
Sep 2024
5.0
Faucets, Fixtures and Pipes - Repair or Replace
Yes, I recommend this pro
Good folks to work with. Great communication between team members and customer.

Tim M.
Sep 2024
5.0
Faucets, Fixtures and Pipes - Repair or Replace
Yes, I recommend this pro
I have used them previously.

Gregory C.
Aug 2024
4.5
Drain Clog or Blockage - Clear
Yes, I recommend this pro
Professional operation with good communication and skilled technicians.

Kimberly I.
Aug 2024
5.0
Attic or Whole House Fan - Install
Yes, I recommend this pro
$140,000
Extremely professional service. Clean and punctual service.

Kevin N.
Aug 2024
5.0
Faucets, Fixtures and Pipes - Repair or Replace
Yes, I recommend this pro
$40,000
Job was done quick, and professionally.

Donna P.
Jul 2024
5.0
Central A/C - Service or Repair
Yes, I recommend this pro
$19,900
I’m 100% satisfied with Calfo and have already recommended them to several people! Every bit of their customer service was excellent, especially my service technician Mike! He was very knowledgeable and super helpful & friendly! Also, and to me this was extremely important: when they sent a text letting me know he was on his way, it not only had Mike’s picture and a short bio, but I was able to track him. Yes an excellent experience for me and I will definitely use them again!

Holly F.
Jul 2024
5.0
Faucets, Fixtures and Pipes - Repair or Replace
Yes, I recommend this pro
Omar was great! He was professional, friendly and punctual. He explained all of our options for our project and completed the project efficiently. We will hire CALFO if needed again.
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Showing 1-25 of 191

Licensing

Licensed*

Trade License Number

PA056323

Trade License Locale

PA

Trade License Expiration

01/19/2026

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

Calfo Mechanical Contractors is currently rated 4.6 overall out of 5.
Monday: Open All Day Tuesday: Open All Day Wednesday: Open All Day Thursday: Open All Day Friday: Open All Day Saturday: Open All Day Sunday: Open All Day
Calfo Mechanical Contractors accepts the following forms of payment: CreditCard
No, Calfo Mechanical Contractors does not offer free project estimates.
No, Calfo Mechanical Contractors does not offer eco-friendly accreditations.
No, Calfo Mechanical Contractors does not offer a senior discount.
Yes, Calfo Mechanical Contractors offers emergency services.
Yes, Calfo Mechanical Contractors offers warranties.

Contact Information

91 Terence Dr, Pittsburgh, PA 15236

Service Hours

Sunday:Open All Day
Monday:Open All Day
Tuesday:Open All Day
Wednesday:Open All Day
Thursday:Open All Day
Friday:Open All Day
Saturday:Open All Day
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