Service Van

24-hour emergency service available

Call us when you need us. We will be there right away.

Residential & Commercial Air Conditioning Repair Services

Trust our experienced Heating, Air Conditioning & Plumbing company.

While every home or business is different, we know a quality heating and air conditioning system is the key to keeping you comfortable throughout the year. At Timothy Off in West Chester, PA our heating and air conditioning repair and replacement services can help you stay cool in the summer and warm in the winter. We offer residential and commercial installation, repair, and maintenance services performed by trained technicians throughout Chester, Delaware, and Montgomery counties.

We also offer plumbing services to keep your pipes flowing smoothly. Whether you’re in need of a plumbing installation or repair, we offer the best service in the area. We’re certified by Trane, Mitsubishi, NATE, and many other organizations.

Timothy Off

My dad converted his boiler from oil to gas. This was a huge project and they did the job professionally and had the means to remove the ancient old system without issue. We highly... recommend more
Sue O.
Sue O.
Thank you very much for Information.
Lalith J.
Lalith J.
I have been a customer of Timothy Off for several years. I went to them when a competitor (Horizon) attempted to sell me a new HVAC system instead of a simple repair. Timothy Off and his... team has always been honest, reliable, and performed quality work. Several years later when I finally needed a new system, they were competitive on pricing, recommended a quality unit and installed on time. I would highly recommend and would serve as a reference for any service they provide A+read more
James G.
James G.
I got my oil furnace replaced and so far very happy with is performance.
Farukh N.
Farukh N.
Very responsive and respectful crew. It was such an easy process from the estimate to the installation. I will definitely use @TimothyOff again.
Ei C.
Ei C.
Timothy Off was amazing to work with! Dan Lippin was on it- there were delays with the equipment coming in due to COVID, but he kept me up to date and always answered my emails promptly.... All of the technicians were beyond friendly and they worked efficiently and effectively. I appreciated their willingness to explain things to me without being condescending. I would absolutely recommend them to anyone for their HVAC needs! They replaced my entire system and I couldn’t be more
Katy M.
Katy M.
Excavation Services

Excavation Services

We have excavation services for water pipe repair and replacement, sewer pipe repair, water main breaks and gas line repair.

Excavation Services Information

Call us today to inquire or to get an estimate.


Timothy Off Heating Cooling Plumbing

Sign up for an HVAC maintenance plan

Our authorized specialists will perform important maintenance services on your equipment twice during the year: once to help prepare for the heating season, and once to help prepare for the cooling season.

Learn More

We Accept Credit Cards we accept

Up To 60 Months Special Financing Available*

*The credit card is issued with approved credit by Wells Fargo Bank, N.A.

Want to join our HVAC company?

We give a chance for people to work in a professional environment with challenges and values. Come join us!

4 Reasons to Call Timothy Off

The team at Timothy Heating, Air Conditioning, and Plumbing is well-known and well-respected for their commercial and residential HVAC services. This is why:

We Guarantee Our Services

Your satisfaction is guaranteed with Timothy Off. From our full system replacement warranties to our complimentary 6-month check-ups, the Timothy Off team is proud to treat our customers to the very best service in the HVAC and Plumbing industries.

We’re Available When You Need Us

Our courteous and trained professionals are available every day of the year, 24 hours a day, so no matter when you encounter a problem, we’ll be able to solve it. We’ll treat you and your home with respect by wearing shoe covers, laying drop cloths, and cleaning up after ourselves.

We Are a One-Stop Shop

Whether you’re looking for heating, cooling, HVAC or plumbing services, our locally owned and operated company is here to help. We offer quality installations, repairs, and maintenance for all of your mechanical needs. Plus, we are a Trane HVAC certified dealer.

We Want to Make You Happy

Our #1 goal is to improve your happiness, comfort, and health, which is why we carry only the highest quality products and brands. With over 100 years of combined experience, we’ll diagnose your situation and provide the best solution for your budget and lifestyle.

Google Rating
Based on 221 reviews