Business Details
50+ Years
experience
Emergency
services
Your Trusted HVAC Partner in Cleveland, OH
Original Donnelly has been a trusted provider of residential HVAC, plumbing, and electrical services in Northeast Ohio since 1963. Our team of factory-trained technicians prioritizes customer satisfaction through transparent pricing, timely service, and expert installations. With over 60 years of combined experience, we specialize in heating, cooling, plumbing, and electrical repairs, offering 24/7 emergency support and financing options. Our commitment to quality is reflected in our 2,600+ five-star Google reviews and Angies Super Service Award. We serve Cleveland and surrounding areas, ensuring homes remain comfortable year-round.Our No Surprise Guarantee ensures quoted prices remain fixed, even if additional work is required. We emphasize energy-efficient solutions, including tax credits and rebates, to help homeowners reduce costs. Our staff undergoes rigorous training to maintain industry standards, and we protect client properties as if they were our own. We provide free estimates, home service plans, and maintenance programs to prevent future issues. Our reputation as a family-owned business trusted by neighbors is built on decades of reliable service and community engagement.
Services
Furnace Repair
AC Tune-Up
Water Heater Installation
Duct Cleaning
Plumbing Services
Electrical Services
Generac Generators
Tankless Water Heaters
Sump Pump Systems
Toilet Tune-Up
Details
- Year established: 1963
Highlights and features
- Weve served Northeast Ohio for over 60 years with expert HVAC, plumbing, and electrical services.
- Our 24/7 emergency team responds promptly to urgent home comfort needs.
- No Surprise Guarantee ensures quoted prices never increase during service.
- 2,600+ five-star reviews validate our commitment to quality and customer satisfaction.
- Factory-trained technicians use industry-leading products for lasting solutions.
Associations and certifications
- Angie's List Super Service Award
- Better Business Bureau (BBB)
What people say
Friendly and professional
Five-star service
Timely and reliable
No surprise pricing
Expert technicians
Services
Furnace Repair
Our certified technicians diagnose and fix furnace issues quickly, ensuring reliable heating during winter. We service all brands and models, using genuine parts for lasting repairs. Customers appreciate our prompt response and transparent pricing.
AC Tune-Up
Preventive AC maintenance improves efficiency and extends system lifespan. Our $169 tune-up includes cleaning, refrigerant checks, and performance testing. Regular maintenance reduces breakdowns and energy costs.
Water Heater Installation
We install gas, electric, and tankless water heaters from trusted brands. Our $100-off special ensures cost-effective replacements. Proper installation guarantees safe, efficient operation and long-term savings.
Plumbing Services
From leaky faucets to sump pump installations, our plumbers handle emergencies and upgrades. We offer toilet tune-ups and water purification systems for improved home safety and comfort.
Electrical Services
Our licensed electricians perform safety inspections, panel upgrades, and EV charger installations. We ensure systems meet code and operate safely, protecting homes from electrical hazards.
Questions
What HVAC services do you offer?
We provide furnace repair/installation, AC tune-ups, duct cleaning, and heating/cooling system replacements.
Do you offer emergency service?
Yes, our 24/7 emergency team responds promptly to urgent HVAC, plumbing, or electrical issues.
Are financing options available?
Yes, we offer flexible financing for HVAC replacements, water heaters, and electrical upgrades.
What areas do you serve?
We serve Cleveland and surrounding Northeast Ohio communities, including Middleburg Heights.
What guarantees do you provide?
Our No Surprise Guarantee ensures quoted prices remain fixed, even if additional work is required.
How can I schedule service?
Call or text (216) 545-1776, or book online for same-day or next-day appointments.
Reviews (7)
Russell Wyborski
Jun 13, 2022
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Our home A/C unit went out three weeks ago. Gorjanc was very professional in coming to our house to review our needs, provide an estimate, and get the unit installed in a very timely manner. On the day of installation, the techs were here on time, did a great job with the installation, and answered any questions that I had about the new unit. I would highly recommend them.
Renee Patrick
May 31, 2022
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We reported our issue to main office and Dawn was very helpful and patient and immediately assisted us with our concern and schedule a same day follow-up with no additional charges. Thanks Dawn for being an ear and voice that responded immediately to our concern. You're the best! Paul, our technician identified the problem with our air conditioning system immediately and was able to correct the buzzing sound. We appreciate the honesty, and professionalism shown by him and would recommend Paul to anyone! Thank you Paul you're the "Man".
Michelle Tanski
May 19, 2022
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Jordan and his team were great! He took the time to explain everything to me before, during, and after the work and answered all my questions. The duct work and A/C installation was done timely and professionally. They were very considerate working in my house and cleaned up after themselves. Customer service was top notch from the first call, to the estimate, to the completion of work. I will be using them for future service needs!
Robin Richmond
Apr 25, 2022
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I have used Gorjanc for years. They maintained some old systems for me, and I have purchased two new furnaces and two new air conditioners from them. Repair and installation services are always scheduled quickly, and their friendly and professional technicians always arrive when scheduled. Their maintenance visits (which are free under their maintenance program) are very thorough. I am routinely impressed how quickly they come out when there is a problem, and they almost always send someone who is familiar with my systems. I heartily recommend them.
Loreen Burke
Apr 24, 2022
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I came home from vacation with no heat and needed a new boiler. I received Expert service, customer care, techs knowledgeable and polite, reasonably priced, if they said it, they did it, brought portable heaters while boiler was down, cleanup after job excellent. I am so grateful I called Gorjanc first. They came right away for an estimate and showed up for repairs on time. Plus I was able to get financing interest free for 48 months. I couldn't be happier. Don't waste your time calling anyone else.
Rob Phillips
Mar 30, 2022
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Pete was supposed to come between 12-5. He arrived at approximately 945. He was quick to diagnose the issue(s) and more importantly offered ways of preventing these in the future. He was knowledgeable, efficient, and most importantly friendly. I was recommended Gorjanc by a family member and will be recommending them to future friends and families due to this great experience. Thank you.
Mary Kay Bossard
Mar 12, 2022
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Called Gorjanc in the morning as our thermostat had stopped working. They came out in the afternoon and quickly replaced it. Felt the price was fair. The technician was friendly, explained everything well in a way I could understand. Tech wore a mask When he came in and we discussed it and I said it was not necessary. Very respectful of our wishes. Gorjanc will be our go to for any HVAC issues we may have.
