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 1203 reviews
extremely professional did the job in a safe timely manner would highly recommend them to do any plumbing jobs. They replaced my hot water tank and water filter system. Both workers did a great job and will recommend them HIGHLY!!!!
Always a good job.
Wonderful experience as always. Haller Techs know what they’re doing; they can articulate the problem and solution very well. Prices are fair and scheduling is good. Thanks Ricardo for your professional service!
Technician (Taleem J.) was courteous and seems efficient and knowledgeable.
Safwan went above and beyond. He moved a heavy hose holder to the front of my house. He explained what he was doing. The bulb was out in my attic a place I no longer climb up to. I gave him a new bulb and he replaced it. He was very helpful and I appreciate his thoroughness.
Conner thanks for his persistence in solving the gen problem last year Thanks to Jaren to identify a small gas leak at the gen in process of doing AC inspection which was not directly related. Then set an appt with Patrick to come and repair the same evening. That is 5 star customer.service
Justin is an asset to your company he knows everything about my HVAC unit
Omar was very professional, friendly, and thorough while performing the annual maintenance on my AC unit. .
Very satified with my PM done on unit. The outside uunit was cleaned very well.
Patrick provided excellent customer service we needed a sewer line repair and I was getting estimates he came out to our house. He was on time professional explained the whole process to me of what would be involved and what the options were. He was truly awesome to deal with. Thanks.
Both installers did a phenomenal job. They were very outgoing and very detailed with everything they did.
Very knowledgeable and friendly professionals. Always answer all my questions. On time and thorough.
The Haller Enterprises technician Justin Neff showed up on time during the specified 4-hour window to perform our Spring maintenance service and checkup on our 10 year old Trane air conditioning system. Everything checked out perfectly, just as I had hoped for, especially after I had replaced the fan motor and the capacitor at this same time last year. Hopefully that preventive maintenance recommended by our Haller technician last year during the Spring maintenance checkup is having its intended effect of extending the lifespan of our Trane HVAC system. Justin did recommend that we consider installing a surge protector for the air conditioning system but I then told him that we had just had a whole home surge protector installed in our electrical panel only a month ago and Justin agreed that should provide all the protection we need.
The technician Safwan arrived on time as scheduled. He was very personable and reviewed what he was doing while providing the routine scheduled maintenance. I would recommend Haller for this and other services as I have had installation work completed by them as well.
Another outstanding job performed by Haller. Use them for HVAC and electrical. Technicians are always friendly and knowledgeable. Highly recommend Haller for all your needs!
The crew ran into some issues but stayed late until the job was complete. Very friendly and personable.
There was a crew of 5 here all day replacing my two A/C units. They did a meticulous and exceptional job making sure everythingwas done correctly. Was very pleased with everything.
This is my third experience with this company and every time has been wonderful.
Guys showed up on time. Clean work. Very nice. Showed me how to work the new thermostat. Unit working well. They cleaned up after all the work. Great job and thank you.
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!
Both Jaren and Steven were personable and efficient. A knowledgeable crew.
Very satisfied and happy with service.
Very Professional
The Haller tech Safwan Razouk was really helpful!
I appreciate Jaren for answering all my questions and doing a well done job maintaining our AC😊😊

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