
Ductless mini split systems complete installation and repair., Central air conditioning complete installation and repair., Water heater replacement and repair. , and 2 more
"Andrew did a great job installing a tankless water heater. Hones and quality work. Great experience!"
Perla R. in March 2023

Central A/C, Heating and Furnaces, Central A/C , and 4 more
"Signature inspected my whole heating and cooling system to ensure it was working correctly and submitted a compettivie bid to install a new furnace and A/C. They were responsive, clean and showed up as promised."
Trip C. in May 2009
Residential Installs
About us: "We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business"

HVAC Replacement, Mini Splits, Heaters , and 2 more
"They are work great and fast. Overall very pleasure experience"
24B3839B0492A2395B2EEA0164E54F0CFC7C7BCF8AEA2093CEE2FFE883DCBD6E 8. in April 2024
HVAC
"Duane was great. He came out and figured out the problem with my heating system (noisy and shaking). He fixed the issue for a very reasonable fee and explained his other products and services without being the least bit pushy. Would recommend their services."
David S. in March 2012

HVAC
"Absolutely fantastic experience with George. I got home from a work trip at 5:00pm to discover my furnace s blower fan had burnt out. George came that evening and stayed until 9:30 to fix it, at a price that was more reasonable than those quoted by others. He was a true professional and I would recommend him to anyone."
Jake B. in December 2019

Rtu package units, Furnaces, Heat pumps , and 2 more
"They did an excellent job - responsive and very fast."
Victor K. in February 2023
In business since 1980
About us: "In 1972, Donnelly’s Cooling, Heating & Plumbing began serving Pennsylvania residents with premier plumbing services and later expanded to add their superior HVAC services. As the area’s top choice for plumbing, heating, and cooling service, we’re proud to offer unmatched professionalism and quality results. With same-day and emergency services, our team is always available for your home service needs. Plus, with service for all brands and free estimates, you can trust you’re in excellent hands with our team."

Electrical Baseboard or Wall Heater, Fixed Generator - Install/Repairs, Electrical Wiring or Panel Upgrade , and 2 more

Geothermal Heating and Cooloing, HVAC
"Great company. I had my AC fixed. Their staff, from April who handles admin, to Wayne who diagnosed our machine and found the leak for the cost of the initial visit whereas other companies wanting to charge us a $1000 to do that. To Thomas, who did a professional job, making sure I was informed of the process, answering any questions I had, and taking care of any concerns. He was professional and very personable. I can't say how much they cost compared to other contractors but right off the bat they saved me $1000 which puts them far ahead of the crowd in my book. Even if it was a bit of a premium, its a premium I am happy to pay for good craftsmanship and piece of mind."
6D1D356AE65C9B05447D86BA307AE43BDC1BD4E5807F79D2A35FFF57D63B30CC D. in May 2026

Plumbing, Electric Installations, HVAC Installations , and 2 more
"I should have written this review a year ago when the work was done. I needed a new heater. A neighbor recommended Marshall Services. I have found them to be a knowledgeable, family-owned team that truly stands out. They’re remarkably adaptable to change—adjusting plans smoothly when new needs arise—and their communication is excellent: clear, proactive, and easy to understand. From the first conversation, their honesty and transparency inspired my confidence, and every interaction since then reinforced that trust. Most importantly, you can count on them. They follow through on commitments, keep you updated without asking, and deliver quality work with genuine care. The combination of expertise, reliable service, and that family-owned touch made the entire experience seamless and stress-free. Marshall Services is my go-to HVAC company and has my highest recommendation."
3E501AEB98CC34BC356F259DE7649D52FDFEF0D5D357D4626A81A19BC3D89858 E. in May 2026

Sewer & Water Line Replacement - We Can Repair or Replace a Water or Sewer Line Without Destroying Your Front Lawn - Call for a Free Water or Sewer Line Inspection, Plumbing - Water Heaters, Leaky Faucets, Running Toilets, Sump Pump Repair & Installation & Much More, Heating - We Service All Makes & Models, 2 Year Warranty on Repairs, Annual Service Plans for Cleaning & Maintaining Equipment , and 2 more
"After signing up with Servicepro, I was on the phone with Horizon within 10 minutes. This was about 9:30 PM. They offered to come and fix the problem he next morning (day before Thanksgiving) but I declined because I was going away. Anyway I scheduled a 10 am appointment for Friday November 28, 2008 and they were very prompt. The techinitian expalined the issue and my heat was up and running within the hour. Very impressed with their service and professionalism. I am now signed up for annual check up for my HVAC system and would not hesitate to recommend them to others."
kirk A. in December 2008

Generator Installs, Panel Upgrades, Electrical Switches, Outlets & Fixtures - Repair
"This was as good an experience as one could want given a plumbing problem."
Duane C. in November 2022
Fort Washington Heating & Furnace Contractors are rated 4.6 out of 5 based on 1654 reviews of 1654 pros.
The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.
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