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RTH Mechanical Contractors logo - Professional HVAC Contractor in Dover, NH
Unverified Electrical & HVAC

RTH Mechanical Contractors in Dover, New Hampshire

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8:00 AM - 5:00 PM See hours
pin icon 17 Production Drive, Dover, NH, 03820
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Highlights from the Business

Quality Assurance
Licensed
Licensed & Insured
Verified
Fully Trained

About RTH Mechanical Contractors

At RTH Mechanical Contractors in Dover, NH, we handle all your HVAC needs from our base at 17 Production Drive. We install, repair, and maintain heating, ventilation, and air conditioning systems to keep homes and businesses running smoothly year-round. Our local team knows the Seacoast area’s unique climate challenges inside out.

Neighborhoods

  • Somersworth
  • Rollinsford
  • South Berwick
  • Barrington
  • Rochester
  • Eliot
  • Madbury
  • Durham
  • Newmarket
  • Stratham
  • North Berwick
  • Lee

Extra Info

Features

  • HVAC Experts
  • Professional Service
  • Reliable Contractor
  • Locally Operated
  • Quality Focused

Social Media

Accepted Payment Methods

  • credit card
  • debit card
  • cash
  • bank transfer

FAQ

Does RTH Mechanical Contractors offer free estimates for HVAC installations or repairs?

We provide free, no-obligation estimates for all HVAC installation, repair, and maintenance services. Our quotes factor in the size of your system, the scope of work needed, and specifics like ductwork or electrical requirements to give you an accurate cost upfront. This helps you understand the full value without surprises.

Are you licensed and insured for HVAC work?

RTH Mechanical Contractors holds all required licensing and insurance for HVAC services in New Hampshire, including coverage for general liability and workers' compensation. We comply with state regulations and EPA standards for handling refrigerants. You can request proof of our credentials before any work begins.

Does RTH Mechanical Contractors handle commercial rooftop HVAC units and industrial mechanical rooms?

We install, repair, and maintain large rooftop HVAC units, air handling systems in mechanical rooms, and industrial pump systems with extensive piping. Our experience covers both homes and businesses in the Seacoast area, addressing unique local climate demands. These projects ensure efficient ventilation and heating tailored to commercial spaces.

What is your typical timeline and arrival window for HVAC service calls?

We schedule appointments with specific 2-hour arrival windows and aim to complete most repairs within the same day. Larger installations like rooftop units may take 1-2 days depending on permitting and coordination needs. Our local Dover, NH base allows quick response times year-round.

What does RTH Mechanical Contractors do with debris and waste after HVAC work?

We remove all old equipment, packaging, and debris from your property, leaving the site clean and organized. Our team uses drop cloths and shoe covers to protect floors and furnishings during the job. Proper disposal follows local regulations for refrigerants and materials.

Why is hiring you safer and better than attempting HVAC repairs as a DIY project?

Professional HVAC work requires specialized tools, refrigerant handling certifications, and knowledge of electrical and gas safety codes that DIY lacks. Our approach includes system testing for airflow, static pressure, and proper charging to prevent failures or hazards like leaks. This ensures long-term efficiency and avoids risks such as voided warranties or injury.

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Location & Hours

Service Area:

Serving Dover, NH & Surrounding Areas
Mon 8:00 AM - 5:00 PM
Tue 8:00 AM - 5:00 PM
Wed 8:00 AM - 5:00 PM
Thu 8:00 AM - 5:00 PM
Fri 8:00 AM - 5:00 PM
Sat Closed
Sun Closed

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