Business Details
50+ Years
experience
Emergency
services
Your Trusted HVAC & Plumbing Experts in Lansdale, PA
Donnelly's Cooling, Heating & Plumbing Cooling, Heating & Plumbing has been serving Pennsylvania residents since 1972, establishing itself as a trusted provider of HVAC and plumbing services. Our family-owned business combines decades of experience with a commitment to delivering reliable solutions for residential comfort needs. We specialize in cooling, heating, and plumbing systems, offering installation, repair, and maintenance services performed by licensed and insured technicians. Our dedication to prompt service, transparent communication, and customer satisfaction has earned us recognition as an A+ BBB-accredited business and a Nexstar Network member.With same-day appointments and 24/7 emergency availability, we prioritize minimizing disruptions to our clients' daily lives. Our team's expertise spans all major brands and systems, ensuring tailored solutions that meet both immediate needs and long-term efficiency goals. Over 50 years of local service excellence in Montgomery, Bucks, Chester, and Delaware Counties underscores our deep community ties and industry leadership.
Services
AC Installation
AC Repair
Heating Maintenance
Plumbing Repair
Drain Cleaning
Sewer Line Repair
Water Heater Installation
Duct Cleaning
Heat Pump Services
Emergency Services
Details
- Year established: 1972
Highlights and features
- We offer over 50 years of combined HVAC and plumbing experience
- Our technicians are licensed, insured, and background-checked
- We service all brands of HVAC and plumbing equipment
- We provide 24/7 emergency service with no extra fees
- Our Comfort Protection Plan offers priority service and exclusive discounts
Associations and certifications
- BBB
- Nexstar Network
What people say
Knowledgeable technicians
24/7 emergency availability
Clear explanations
Same-day service
Professional demeanor
Services
AC Repair
Our certified technicians diagnose and repair all types of air conditioning systems including central AC units, heat pumps, and ductless mini-split systems. We provide same-day diagnostics and transparent pricing for repairs ranging from refrigerant leaks to compressor failures. Emergency service is available 24/7 with no additional charges for after-hours visits.
Heating Installation
We install high-efficiency heating systems including gas furnaces, boilers, and heat pumps with manufacturer-backed warranties. Our team conducts load calculations to determine optimal system sizing and provides detailed explanations of efficiency ratings and operating costs. Financing options are available for qualified customers.
Plumbing Repair
Our licensed plumbers handle burst pipes, leaky fixtures, and sewer line emergencies with rapid response times. We use video camera inspections to diagnose hidden issues and provide permanent solutions for slab leaks, clogged drains, and water heater malfunctions. All repairs include a 100% satisfaction guarantee.
Drain Cleaning
We employ hydro jetting technology and trenchless repair methods to clear stubborn drain clogs and restore sewer line functionality. Our technicians perform comprehensive inspections to identify root intrusion, pipe corrosion, or structural damage. Preventative maintenance plans help avoid future blockages.
Water Heater Services
We service and install tankless, gas, and electric water heaters with same-day replacement options. Our technicians test pressure valves, flush sediment buildup, and check for safety hazards during maintenance visits. Emergency repairs and leak detection services are available 24/7.
Questions
Do you offer emergency HVAC services?
Yes, we provide 24/7 emergency services for urgent heating, cooling, and plumbing issues with no extra fees.
What areas do you service?
We serve Montgomery, Bucks, Chester, and Delaware Counties in Pennsylvania, including Lansdale and the Greater Philadelphia area.
Do you work on all HVAC brands?
Yes, our technicians are trained to service and repair all makes and models of heating, cooling, and plumbing equipment.
Are financing options available?
Yes, we offer financing through GreenSky, Synchrony, and Service Finance with flexible plans to fit your budget.
What is your Comfort Protection Plan?
Our annual maintenance plan includes priority service, no overtime fees, and exclusive discounts on repairs and replacements.
Reviews (7)
Djb
Jun 03, 2022
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My service was provided by Josh. He came out and got my heat running again. He was fantastic and answered my questions flawlessly. Someone I felt I could trust in my home without me monitoring them. Very happy with him and the companies product. Update: heat was running but my 20 year old unit decided to die again. Got a quick estimate and the price was comparable to other companies. Had my unit installed today. Financing was easy. Jake came out with another guy to do the install and it was a full day.
But credit to them for working through the downpour to get the install done. System is running smooth and my air is cold once again. Very satisfied with the business and the accommodations made by Donnelly's to not rip me off. As in since the previous work didn't hold up bring my old unit back to life, I was able to get the price of the new unit knocked down. Saved me a good chunk of money.
But credit to them for working through the downpour to get the install done. System is running smooth and my air is cold once again. Very satisfied with the business and the accommodations made by Donnelly's to not rip me off. As in since the previous work didn't hold up bring my old unit back to life, I was able to get the price of the new unit knocked down. Saved me a good chunk of money.
Robert Byrne
Apr 12, 2022
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Brian Tapper, Service tech for Donnelly's plumbing and heating, did a complete yearly heat and A/C checkup today. He was Professional, courteous, informative and was very thorough. He answered every question clearly and without pause and to my satisfaction. He reminded me of an old school type repairman who still took pride in his work and instilled confidence regarding his work ethic. Hope to get him again next year.
Ron Chamrin
Apr 10, 2022
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Professional and smart technicians. They have conducted regular maintenance as well as installed replacements for outdated/non-working parts. I really appreciated the same day service as they had all the parts and pieces ready to solve any issue. Basically, they did not have to come back another day and my system was working the same day that they arrived. I also felt their recommendations and prices were fair, on target, and not excessive or unnecessary. Very happy with the work and I'm confident that the systems will work properly.
J. D.
Feb 27, 2022
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Had a plumbing emergency two days in a row and they responded immediately both times. When the first quick fix didn't hold, they came back to do a full drainage pipe replacement the next day. Response times were good and they had all the parts available immediately. Service guys were communicative and thorough, and even helped scrub up some mess from earlier leaks. Very happy with the replacement so far, though it felt slightly pricey. I don't have much to compare it to however. Worth it for the speed and peace of mind regardless.
Michelle Sands
Feb 26, 2022
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Donnelly's did an excellent job from start to finish! We were in desperate need of replacing out heating/AC unit. Matt from Donnelly's came out not long after my initial call. He was informative and not pushy (as some of the other companies we called had been). Once we decided to go with Donnelly's (after a great recommendation from a friend that had just used them as well), Alicia was so gracious in helping us over a weekend to answer questions and then getting us on the schedule that Tuesday (Monday was a holiday).The day of install then brought Brandon, Jeff and David to our home.
They were on time and very efficient in getting the work completed. They helped ensure we understood the new system and thermostat and answered any questions we would have! We would highly recommend Donnelly's!
They were on time and very efficient in getting the work completed. They helped ensure we understood the new system and thermostat and answered any questions we would have! We would highly recommend Donnelly's!
Patricia Harmer
Feb 25, 2022
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My concrete utility sink was leaking. was installed when the house was built in 1957. John did an excellent, excellent job replacing the old sink with a beautiful new one. It took almost 3 hours to complete but the job was done with outstanding work. His kindness and the way he explained what was being done was fantastic. I've used this company before and I can say they have extremely high quality employees.
Ben Kuerschner
Jan 24, 2022
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They sent out a technician (Nick) within 24 hours to fix an emergency problem. He quickly assessed the problem, and fixed it in less than 2 hours. He also took the time to show me where certain basic things, like the main water line and the water heater, were located in my mom's house. The price was a little high, but I didn't feel it was unreasonable, and Nick clearly walked me through the pricing and work before starting, which I thought was a very ethical and good way to do business. Overall I'm very happy with Donnelly's and the emergency work they performed.
