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 1320 reviews
frank cerullo
14 hours ago
Ryan did an amazing job and addressed our issue with great service! OUTSTANDING SERVICE !!! THANK YOU !!!
Marta Storm
1 day ago
Jaren performed a routine fall check up and everything seemed to be working fine. He was thorough in his explanation of the services he had done. He did suggest to have a plumber come out and check our water pressure, which seemed low to him.
Yoly Santana
3 days ago
Thanks to Haller and Peter for being so thorough and helpful. They always go out of their way for customers.
Great job, clean and efficient
Diane Limoge
6 days ago
Prompt, courteous, and efficient. Estimate & work done quickly.
Scott Gradwell
7 days ago
Great service!! Very polite and efficient!!! I highly recommend Haller
Fred Carrer
7 days ago
The technician's new the job, very courteous and thoughtful and played with our puppy which was a good thing
Cordell Grove
1 week ago
Good crew and a clean job.
Connor is a very knowledgeable young man. I am extremely satisfied with the work done on my generator.
Mary Jo Brown
1 week ago
Semi-annual Maintenance Check was done by Ricardo. He was professional and thorough.
JFS
1 week ago
I just had my mini split and boiler service. The technician was here for three plus hours cleaned everything , tested everything and told me my systems are number one. I can't be happier with the service I received today.
Mark Perkins
1 week ago
Luke came out next day (first business day), found the problem, and fixed the issue in half the time he quoted. Quick, efficient, and friendly. Great job! Definitely using them again if I need anything else.
Mayland Long
1 week ago
Very professional and dedicated. Safwan went above and beyond the call to take care of the issue.
scapeland
1 week ago
Today was Luke was Exceptional. Very Professional, Courteous, Timely, Friendly and Knowledgeable.
Linda Bell
2 weeks ago
Jaren is ab excellent tech!
Jim
2 weeks ago
I called half a dozen plumbers in the area to respond to our emergency sewer line clog, and they were the only ones that responded immediately with same day service. Plumber was friendly and efficient. Got the job done well.
tj lj
2 weeks 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. Their sales people are very upfront and honest. They are not pushy like a 'typical' salesperson. They do NOT make you feel pressured to sign a contract. I think they did a good job for an average price, but they have an extremely professional, friendly staff. I didn't feel like I had strangers working on my house, they were all so friendly it felt like family.
Charles James
2 weeks ago
Great professional installation. On time. Questions were thoroughly answered.
Doug Bell
2 weeks ago
Great job and service.
George DeSanto
2 weeks ago
Needed yearly service maintenance on my generator, (installed by Haller), the technician, Conner, responded and did the work. He was very thorough, courteous and professional. I had an issue with it earlier in the year and Conner responded to that and cleared it up. He does great work.
Jack
2 weeks ago
Thorough evaluation of the issue. Corrected the issue with expertise. Professional, knowledgeable and courteous.
David Bowler
3 weeks 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
3 weeks ago
very thorough & explaining what was being done.
Michele Hornung
3 weeks 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.

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