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 1244 reviews
Jaren and Shawn were very professional, polite, and took time to explain everything they needed to do.
I have been using Haller for about 10 years and I am always happy with their service. The technicians are always professional and respectful. They explain what they are doing and let you know approximately how long the service will take.
On time, courteous, efficient, did a great job!
Very quick to fix my issue and arrived super promptly
Good crew and a clean job.
Greg was professional and very thorough! He even took the time to show me details and what filters I use. He was polite and courteous and patient! Thanks so much, Greg! It was a pleasure meeting you.
As always, excellent service. Great communication, too.
I contracted with Haller to do annual maintenance on our home generator. They come annually for a checkup and also if something breaks down during the year. I. Pay $500 for an annual fee. The office personnel who schedule service are very personably and respectful, and the service repair folks have been great. Connor W has been our service person several times now, and heโ€™s great – efficient, polite, and knowledgeable. I also appreciate the responsiveness of the office folks who communicate well with reminders and also will try to schedule things to get done faster if the roster changes, etc. Connor, for instance, was able to come a little earlier today, so Iโ€™m not stuck here at home waiting as is so often the case in other circumstances. Very pleased with service, and have peace of mind that this generator will last through thick and thin thanks to Haller.
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!
Friendly and nice
Justin the tech was very knowledgeable and professional and then Alex from sales was great too! Been a customer since they were Tru Comfort
Technicians were excellent!
Great service!! Very polite and efficient!!!
I highly recommend Haller
Phil was exceptional in helping us with our electrical issue for our rentals during this heat wave. He stayed after we were reconnected to main power, and stabilized our rentals. So grateful I called him today. We were on vacation with family, and he took care of everything so we could stay. Such knowledge of electricity!!! We will be calling him from now on for any issues we have, and genuinely the nicest, calm person who went above and beyond a service call…
Very impressed to have the speed and completion of the install of my new ac/heat unit
Rafael was efficient, knew the equipment he was working on and answered some questions about operation which I found helpful. Highly recommended.
The techs from Haller were efficient and professional.
Great work. And when our unit didnโ€™t allow for the complete job they only charged us for what they did!!
It is nice knowing I can gets quick response for my home needs!
Friendly and knowledgeable. Got the job done quickly.
Mini splits maintenance. Friendly, professional and good service.
Haller provides great service. Their techs are friendly, knowledgeable, and show up on time. I think that their prices are fair. Thereโ€™s never an issue scheduling a service appointment.
As before, today was Greg was Exceptional. Very Professional, Courteous, Timely, Friendly and Knowledgeable.
I use Haller for everything!! Super reliable and really nice workers.
Today, sump pump battery replaced . Tabish was terrific! Super nice and efficient! Carl, as always was wonderful and Artif was super helpful and kind
Very nice guy. Explained everything to me.
Service techs on time and courteous. Would call them again.

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