Come along for a view of our expert care team in action. Service Experts - we deliver expert HVAC, and plumbing services nationwide. This video showcases the dedication of our team to provide professional service and local care for your home system needs.
Mark Allen Plumbing, Heating & Cooling
Serving the Greater Pittsburgh Area
Expert home services—locally managed with national brand support. Quick repairs, full upgrades, or anything in between.
With any new HVAC, Indoor Air Quality, Water Heater or Water treatment Service Experts Advantage Program lease agreement, we will make your payments for the first 6 months.
Valid on new Advantage Program lease agreements from 1/7/26 through 1/31/26. Customer owes $0 for the first six months; regular monthly lease payments begin thereafter. Early termination during promotional period will result in charges for elapsed months. See your full Advantage Program Lease Agreement for complete terms and conditions, including total lease cost and payment schedule.
Jan 7, 2026
- Feb 28, 2026
Up to $1,800 in rebates when you purchase a qualifying Lennox HVAC System
System rebate requires the purchase of an indoor unit, an outdoor unit and a qualifying thermostat. System add-ons do not qualify for an individual rebate and cannot be combined with individual unit offers. Rebate offer valid from 1/19/26 through 2/13/26 and must be installed by 2/20/26. Claim rebate by March 22, 2026; rebate is paid in the form of a Lennox prepaid Mastercard®.
All rebate information found at https://www.lennox.com/residential/buyers-guide/offers-and-savings/promotions/. Equipment brands and offers vary by Service Experts location, call your local Center for more details.
Jan 19, 2026
- Feb 15, 2026
Struggling to keep your home's systems running efficiently and feeling safe can be overwhelming. At Mark Allen Plumbing, Heating & Cooling, we've been proud to serve the Bethel Park community for over 30 years. Our team is dedicated to ensuring your household runs safely, efficiently, and smoothly with complete home service solutions tailored to meet all your needs.
Our "whole home" service approach covers everything from comprehensive HVAC care (heating, cooling, and air quality services) to expert plumbing installations and repairs. Whether it's urgent repairs, new system installations, or regular preventive maintenance, we're your trusted partner for everything you need.
Call us at (412) 388-2545 today to schedule your next service appointment!
Backed by Expertise and Qualifications
With the strength of a national brand, we offer access to the best equipment rates and suppliers, all while providing fast service delivered by local community experts. This unique combination ensures you receive unmatched value and service quality every time.
At Mark Allen Plumbing, Heating & Cooling, our licensed, bonded, and insured ACE-certified technicians work under the trusted Service Experts Guarantee. Rest easy knowing that every installation is completed to the manufacturer’s specifications, giving you complete peace of mind.
Keep Your Home Safe with Our Membership Plans
Unexpected HVAC and plumbing repairs can strain your budget and disrupt your peace of mind. That's why Mark Allen Plumbing, Heating & Cooling offers membership plans to protect your home and wallet while ensuring year-round comfort.
Service Experts Advantage Program™: Get brand-new equipment with no down payment, plus coverage for parts and labor. This plan also includes annual maintenance, priority service whenever you need it most, and a convenient monthly payment option.
Maintenance+ Membership: Reduce the chance of system breakdowns with regular care, priority service, annual professional tune-ups, exclusive member discounts on repairs, and extended equipment life and efficiency.
These memberships are designed to provide reliable system care and ensure expert maintenance for your home systems year-round. Join today to protect your investment and enjoy peace of mind knowing your home is in expert hands.
Supporting the Local Community
With deep roots in the area, Mark Allen Plumbing, Heating & Cooling is proud to have served this community for many years. From Pittsburgh to Mt. Lebanon, including Upper St. Clair and South Fayette Township, we're committed to providing fast, reliable service to every corner of the community.
Call (412) 388-2545 today to make us your new home service partner!
Our Experts Make You Feel Right at Home
Creating comfortable, efficient homes with expert service and innovative solutions.
The Service Experts Guarantee
We promise that every piece of equipment we work on and install will be set up with care and precision—exactly as the manufacturer intended.
Fast Response, Anytime You Need Us
From heating to plumbing, we respond quickly to keep small issues from becoming big problems.
Licensed, Bonded & ACE-Certified Experts
Our nationally certified, ACE-certified professionals are licensed, bonded, and insured, delivering top-tier expert service with complete peace of mind.
Schedule Anytime, Day or Night
Book your appointment whenever it's convenient for you. Our scheduling and customer support are available 24 hours a day, 7 days a week.
Mark Allen Plumbing, Heating & Cooling is proud to be part of the Service Experts family, combining over 30 years of local expertise with the trusted reputation of a national brand that has been serving communities since 1996. This partnership allows us to maintain the personalized, high-touch service our customers value while gaining access to national resources, training, and innovations.
We remain deeply committed to serving the Bethel Park area with even more advanced services and capabilities. Customers can trust us to deliver the same dedication to excellence they’ve always enjoyed, now with the added benefit of expanded resources and opportunities.
"The service was excellent—prompt, professional, and very reassuring during a stressful situation."
R
"The technician, Carl, arrived in a very short time period, was highly knowledgeable and efficient."
B
"He helped save me hundreds of dollars and I appreciate it."
B
"Very good service and came when they said."
C
"Jon Blednick was able to diagnose and fix our clogged sink in seconds!"
J
"Since it was an emergency, they still came and took care of my problems in a quick and professional manner."
J
"Will was professional, friendly, skillful and we will use Mark Allen in the future and of course ask for Will."
D
"Technicians are friendly, knowledgeable, and professional."
C
"Clayton and Luke were extremely polite, efficient, knowledgeable, and a pleasure to work with!"
T
"The technician always explains the furnace, dehumidifier, temp settings, and filter replacement requirements."
E
"Jonathan was quick and professional."
L
"We have been using them for over 5 years and have never been dissatisfied with their work."
H
"Very professional and a pleasure to work with."
D
"They were polite and professional and found and analyzed the problem immediately."
L
"Rene, who answered my call, was very courteous and personable."
E
"He was very prompt, kind, and friendly."
P
"Very professional, polite, respectful, and knowledgeable."
M
"Jesse was very thorough and fixed our problems in no time."
J
"Highly recommend Jon!"
C
"Woke up to a freezing house, Mark Allen sent a tech within 2 hours and the house was warm again within 3 hours."
A
"I called after normal business hours and a tech was at my house within an hour."
S
"Jess provided service today for a new water heater."
F
"Very pleased with the work that Jesse performed and the professional manner that he showed."
D
"Jason is respectful, professional, and knowledgeable."
R
"On time, I believe did a thorough checkup."
E
"Next day service that was exemplary."
T
"They show up on time, are very pleasant, clean up after they are done and bill you for the estimated cost quoted."
C
"Very professional, courteous, knowledgeable and tact in their negotiations surrounding the bid for this job."
C
"Prompt, efficient, and communicated things well."
M
"Jason Gellen and Josh were top-rate professionals—kind, courteous, and hard working."
The service was excellent
Our furnace stopped working this morning during a very cold weekend, and we were so relieved by how easy it was to schedule an appointment. The service was excellent—prompt, professional, and very reassuring during a stressful situation. We’re extremely grateful and highly recommend them.
Service from Mark Allen was excellent
Service from Mark Allen was excellent. My call was an emergency due to my furnace not working and the weather was extremely cold. The technician, Carl, arrived in a very short time period, was highly knowledgeable and efficient. He explained the problem, replaced the part, and offered advice. Thanks for your help and I will use your company again in the future.
Jon was great
Jon was great! Needed help with an issue on my faucet. He recommended I reach out to the manufacturer to see what warranty options were available. The faucet will be replaced under warranty. I never would have thought to do that without Jon suggesting it. He helped save me hundreds of dollars and I appreciate it.
Very good service
Very good service and came when they said. Very happy.
Fabulous Experience
Fabulous experience. Jon Blednick was able to diagnose and fix our clogged sink in seconds! Thank you, Mark Allen!
Quick and Professional Emergency Service
Did appointment online for next day service. They were actually closed for the 31st and 1st for New Year's, and they called me before the scheduled time to let me know and were only taking emergencies. Since it was an emergency, they still came and took care of my problems in a quick and professional manner. Do recommend for all your plumbing needs. Thanks, Jon our technician.
He is 5 stars!
Our furnace thermostat failed this a.m. (coldest day of year). Called Mark Allen, got an appointment same day. Will found the problem immediately and fixed the issue. Will was professional, friendly, skillful and we will use Mark Allen in the future and of course ask for Will. He is 5 stars!
Each experience has been great
I’ve used Mark Allen several times and each experience has been great. I’ve had thermostat replacement, toilets unclogged, bathroom plumbing replaced, and a relief valve related to my boiler replaced. Technicians are friendly, knowledgeable, and professional.
What an Amazing Experience!
What an amazing experience! After my emergency call to Renee, Clayton and Luke arrived to replace our hot water tank. Within hours, our new hot water tank was installed and we had hot water again. Clayton and Luke were extremely polite, efficient, knowledgeable, and a pleasure to work with! I highly recommend Mark Allen, Clayton and Luke and give them five stars! Thank you for making a difficult situation into a pleasant experience!
Annual Service of the Heater
Annual service of the heater installed by Mark Allen is always a pleasure. The technician always explains the furnace, dehumidifier, temp settings, and filter replacement requirements. I can always trust their expertise.
Quick and professional
Jonathan was quick and professional. Thanks for the repair to stop the leak and advice about the garbage disposal.
I have never had a bad experience
I have NEVER had a bad experience with Mary Allen Plumbing Services. Today we had issues with our laundry tub drain and Joshua took care of the problem. He was professional, thorough, and fixed the problem. He was social and friendly. I highly recommend Mark Allen Services. We have been using them for over 5 years and have never been dissatisfied with their work.
Very professional and a pleasure to work with
Mark Allan replaced a main drain at my home. Very professional and a pleasure to work with. I'd call Mark Allan anytime for repairs.
We would highly recommend the company
We recently had a frozen pipe so that our second floor shower/tub was not working. When we called Mark Allen Plumbing, the receptionist, Renee, was extremely nice and helpful. She got us an appointment within a couple of hours of the phone call. Then, Jon Stapas and Cory White showed up. They were polite and professional and found and analyzed the problem immediately. They got the water going again and offered several possible solutions for insulation that we could pursue to avoid future issues. We would highly recommend the company (and these guys in particular) to anyone. Thanks very much!!
Very courteous and personable
I contacted Mark Allen because I have a plumbing and HVAC need. Rene, who answered my call, was very courteous and personable. They contacted me when the service team member was on their way. Michael Stack explained the scope of the project and provided an estimate. Michael was also very courteous and personable while in my house. Based on a previous estimate I received, I feel that their estimate was reasonable.
Excellent experience with John B.
We had an excellent experience with John B. He changed the connections needed to install our new stove. He was very prompt, kind, and friendly. Highly recommend.
Very professional, polite, respectful, and knowledgeable
Very professional, polite, respectful, and knowledgeable. I will highly recommend Mark Allen, Neil, and Will to everyone I know. Thank you so much for your help.
Jesse was very thorough
Jesse was very thorough, fixed our problems in no time, and made sure to clean up before he left. He can help us anytime!
Highly Recommend Jon
Jon did a great job replacing some valves, faucet, and repairing a small leak. Highly recommend Jon!
10/10
10/10. Woke up to a freezing house, Mark Allen sent a tech within 2 hours and the house was warm again within 3 hours. Our tech, William Hart, was very great and knowledgeable and even walked my fiancé through what he was doing so we would have more knowledge of our furnace. Thank you! Will definitely be using this company again!
Absolutely amazing experience
Absolutely amazing experience with Mark Allen! I called after normal business hours and a tech was at my house within an hour. William Hart was great! He explained the issue to me and was knowledgeable and kind. Could not recommend them enough! Will be calling them for all of my HVAC needs.
Excellent service
Jess provided service today for a new water heater... excellent. Great service!
Very pleased with the work
Jesse arrived within the scheduled time quoted, started to work on the problem sink drain clog. Completed the work that had to be done, explained what had to be done, completed the work, and cleaned up when the work was completed. Very pleased with the work that Jesse performed and the professional manner that he showed. This is the first time that I used Mark Allen Plumbing and if I ever need to have additional work performed they will be the first company I call.
Outstanding professional service
Thank you again to Mark Allen Plumbing and Jason Gellen for outstanding professional service! Jason is respectful, professional, and knowledgeable.
David B.
On time and thorough checkup
On time, I believe did a thorough checkup. Will have AC checked in spring.
Simply the best!
Called Mark Allen Plumbing for repairs needed for home we purchased in Bethel Park. We had next day service that was exemplary. From office staff booking to technician Jason Gillan, they were the best. Jason fixed all concerns in an efficient and professional manner. Simply the best!
Ernie Y
We have been extremely pleased
We have been extremely pleased with the service Mark Allen has provided. They show up on time, are very pleasant, clean up after they are done and bill you for the estimated cost quoted.
Very professional, courteous, knowledgeable
I liked Mark Allen so much the first time that I had to again ask them for some more help, and the service worker John B and his associate were able to provide very expert advice on how to mitigate the problem, which was a clogged pipe. After running the snake several times, we concluded a replacement from the cast iron relic was in order. They left, came back with parts, and in no time had my sink in working order along with a new pipe. They showed me what they had cut out, and it was indeed rusted almost completely closed outside of a small portion the snake was able to punch through. Very professional, courteous, knowledgeable and tact in their negotiations surrounding the bid for this job. This all started with a quick email submission, which within minutes Renee was able to call and schedule me for first available next day. Great work!
Fantastic young man to deal with
John N. replaced the wax ring on the toilet and replaced the expansion tank on the hot water heater. Fantastic young man to deal with! Prompt, efficient, and communicated things well.
Top-rate professionals
Jason Gellen and Josh were top-rate professionals. Kind, courteous, and hard working. I highly recommend Mark Allen Plumbing and Heating.
