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 1311 reviews
Jack
2 days ago
Thorough evaluation of the issue. Corrected the issue with expertise. Professional, knowledgeable and courteous.
tj lj
2 days ago
We called for a yearly HVAC service. The guy Ricardo came. He was extremely nice, knew what he was doing. Very kind and polite. The lady who scheduled the appointment was super kind and friendly. It has been the best experience I ever had getting my yearly service. I would recommend Haller to anyone.
David Bowler
6 days ago
Annual service completed on heat pump and furnace. Technician Jaren B. performed the service. He will return with manager to assist in maintenance of steam humidifier. He was polite and punctual.
Rick Daubert
6 days ago
very thorough & explaining what was being done.
Michele Hornung
6 days ago
The Gentleman that came was great, knowledgeable and very helpful and pleasant when I asked questions. He's been here before and would like him to come again.
Technician is an excellent job. He was professional and knowledgeable. I would definitely recommend their services to others.
George Bauder
1 week 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.
Kathy Knipe
1 week ago
Ricardo was great – thorough, explained everything, kind
Bill Bertolotti
2 weeks ago
Excellent service today as usual.
Michael Malone
2 weeks ago
Jaren is knowledgeable, engaging, professional. Haller could not be better represented. I had a second visit for my AC. It turned out to faulty wiring job by the initial installers. Jaren and Pete were very professional about what turned out to be a dirty job.
Mike Marchioli
2 weeks ago
Great service and customer care
David Gilheany
2 weeks ago
Haller has always done great by us. They installed our new boiler system a few years ago & it is a work of art, beauty, & efficiency. Ricardo performed our annual maintenance today. Total professional & a gentleman. Thank you!
Charles Flynn
2 weeks ago
During a yearly pre heat system maintenance visit a problem was noticed with the Emergency heat unit. It was ordered and replaced and is now working after a period of troubleshooting. Turned out one of the coils was touching the side of the housing causing one of the breakers to trip. Mistah Williams stuck with it and discovered and fixed the issue. Nicely done!
Ian Kindle
2 weeks ago
Tech was very thorough and service was good and fast.
Kevin O
3 weeks ago
Justin showed up on time and went right to work and he fixed my geothermal and it was working in 10 minutes
The service was great and the technician (Robert) was very helpful and courteous.
Greg Duncan
3 weeks 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
3 weeks 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
3 weeks ago
Efficient and professional!
Robert Falcon
3 weeks 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 !!
Kim Goff
3 weeks ago
On time and professional. Friendly and talked to me in a way that was direct and understandable
Brian Mansfield
4 weeks ago
Great work. And when our unit didn’t allow for the complete job they only charged us for what they did!!
geraldine morris
4 weeks ago
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!

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