Heating, Electrical & Plumbing Services

Top-Rated Home Service Contractors in Dover, PA

Haller Technician Helping customer with Memberships

Same-Day Home Service Solutions

You rely on many systems every day. If you expect clean water, comfortable temperatures, and reliable power, it’s crucial to keep your systems running properly. Turn to Haller Enterprises for HVAC, plumbing, and electrical services in Dover.

Our technicians know the ins and outs of today’s modern systems and can get yours working like new. You can rely on us for your needs, from small repairs and total replacements to maintenance.


Homeowner greeting Haller technician at the door for maintenance

Join Our Membership Plan

A maintenance plan from Haller can keep your systems working well for years. We offer complete maintenance in Dover for single systems or your entire property. From reduced repair costs to installation rebates and more, our maintenance plans are designed with your needs in mind.

Count on our team for comprehensive maintenance services.


Expert HVAC Services

Beat the heat and weather the winter with our HVAC Contractor’s help. We service and install central ACs, ductless mini-splits, furnaces, boilers, heat pumps, and geothermal systems.

Heat Pump

Heating Services

Staying warm in the winter can be tough without a good heater. Turn to Haller for these heating services in Dover:

  • Heating repair: We can fix heating elements, blower motors, and other crucial heating system parts.
  • Heating installation: When you need a new heater installed, we’ll carefully remove the old one and install a new unit in a day.
  • Heating maintenance: Annual heater tune-ups can keep your system running like new.
  • Commercial heating: Our team has the tools and expertise to handle large, commercial-grade heating systems.
Ice Machine

Comprehensive AC Solutions

The summer heat in Dover can be a lot to handle. Look to our team for comprehensive AC services, including:

  • Cooling repair: Let our team repair your condenser coil, refrigerant system, or other vital cooling parts.
  • Cooling installation: Install a new air conditioner in a single day with our help.
  • Cooling maintenance: Routine tune-ups can help prevent damage to your AC.
  • Commercial cooling: Look to our experienced technicians for commercial-grade AC services.

Enjoy comfortable temperatures all year. Call Haller today to schedule HVAC services in Dover, PA.

Haller Technician Standing Outside Work Van

Plumbing Services

You need reliable, sanitary plumbing throughout your property. Turn to Haller when you need any plumbing services, from minor repairs to major replacements. We offer:

Get help from local plumbers in Lititz to keep your plumbing in tiptop shape. Call today to schedule an appointment.

exposed beam ceilings with minimalist light fixtures

Electrical Services

Electricity is at the heart of nearly every system on your property. Without reliable electricity, you risk fires, appliance damage, and worse. Turn to Haller for professional electrician services, including:


Why Choose Us for HVAC, Electrical & Plumbing?

Haller has been a go-to team for HVAC, plumbing, and electrical services in Dover since 1981. We work hard to get your systems working. Choose us for upfront pricing, specials, financing, and more.

Keep your property’s vital systems working like new.

Call Haller to schedule HVAC, electrical, or plumbing services in Dover, PA.

Male Haller tech with tool bag entering residential home smiling.


What Our Customers Are Saying

100% Satisfaction Guarantee

4.7
Based on 1297 reviews
Elise Baskerville
10 hours ago
The service was great and the technician (Robert) was very helpful and courteous.
Greg Duncan
1 day ago
The technician listened to my questions, and provided answers that were very helpful. He serviced the tankless water heater, and instructed me as to how to drain the 55 gal holding tank. Very satisfied!
Cherry Hailey
1 day ago
Your guys came out to do routine maintenance on my minisplits that Deluxe had pit in 3 years,ago. They did a great job, and showed me how to clean the filters inbetween them coming. They also cleaned a minisplit my husband had put in for me. They did a wonderful job!
Exceptional service and no up selling. Just honest hard work and attention to detail. Thank you.
Karen Alworth
1 day ago
Efficient and professional!
Robert Falcon
2 days ago
Overall im happy with the service Devonte and his team installed my hvac system on-time professional awesome job ,also a thank you to the salesman Anthony for arranging the installation in a timely manner awesome job team !!
George Bauder
3 days ago
Great product and very friendly workers. They kept me in the loop of what they were doing and actually finished the job in one day instead of two days.
Kim Goff
3 days ago
On time and professional. Friendly and talked to me in a way that was direct and understandable
Brian Mansfield
4 days ago
Great work. And when our unit didnโ€™t allow for the complete job they only charged us for what they did!!
Great response time, Chris was polite, professional and did the job. Thank you, I highly recommend Haller.
Technician Ricardo was excellent, diagnosed the problem In time (MTI get the replacement part and installed it on the same afternoon, explanation of problem was thorough and issues and service were well explained!
Emin Erman
1 week ago
It is maintainance but technicianbsuggesteded fan cleaning that he did
MacNair Randall
1 week ago
Haller techs are always professional, knowledgeable, and reliable. Iโ€™ve been with Haller twenty years and theyโ€™ve never steered me wrong. I highly recommend Haller Enterprises.
Luis Martinez
1 week ago
unbelievable service today these guys were top-notch. They took care of my house unbelievably clean organized. Got right to the point very friendly easy-going. I highly highly recommend them.
Alan Kurinovich
2 weeks ago
I had an amazing experience with Haller Electrical and cannot recommend them enough. The technician Theodore K. who came to my home was extremely polite, helpful, and knowledgeable. He quickly diagnosed the issue with my light fixture, repaired it thoroughly, and carefully verified that everything was working perfectly before leaving. He took the time to explain both the situation and the repairs clearly, which I truly appreciated.On top of fixing the immediate problem, the technician went above and beyond by answering several questions about future projects I want to complete, even though they weren't related to the service call. The pricing was also very reasonable for the high quality of work provided. Based on this great experience, I fully plan to use Haller for all of my additional electrical work in the future!
Karen Hendricks
2 weeks ago
Connor gave me a discount Because the parts took longer than expected, I was very happy with his service. He explained other problems with my generator and was able to fix them the following week. He was very courteous and on time.
F Forbes
2 weeks ago
My kitchen and dining room lights had been out for three days. Today I switched the circuit breaker off and on. That resulted in a burning smell in my kitchen. My deck outlet melted and charred. I called Heller at 9:22. Mike was at my home at 1:13 and the job was done by 3:12. Iโ€™m grateful for the timely and efficient service! Excellent service from start to finish.
Phil arrived on time, explained everything, was straightforward with pricing, completed the job as represented and cleaned up before he left.
Terry Kauffman
3 weeks ago
Had summer maintenance service today by Kenneth. As always they were on time and completed service.
Mark Kline
3 weeks ago
Friendly and knowledgeable tech who handled all questions and concerns promptly and professionally
Dennis Allen
3 weeks ago
Service guys were great. Ricardo and I believe the other tech was Steve, weโ€™re very personable and polite. Did what I needed done on the preventative maintenance on my A/C. i did think it was a little pricey, but what isnโ€™t nowadays, running a company is not cheap . I will request them when itโ€™s time to have the furnace checked out and cleaned. I hope Haller recognizes their employees and passes this along to them.
They came as promised and finished the job as promised !
Daisy Thoma
4 weeks ago
Very professional and polite
Paul Felber
4 weeks ago
Very easy fix, pleasant service!
Ron Serafin
4 weeks ago
Michael very nice guy. Did a thorough inspection. Glad we were able to have this and see a couple of things we need. Thanks.

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