What is the recommended air filter replacement frequency for an HVAC system?

It’s recommended to replace your HVAC air filter every 1 to 3 months, depending on factors like filter type and indoor air quality. Homes with pets or high dust may require monthly changes.

How often should heat pump maintenance be done for optimal efficiency?

Heat pump maintenance should be performed at least once a year to ensure efficient operation and prolong system lifespan. For heavy usage or specific conditions, biannual maintenance may be beneficial.

When is a broken AC considered an emergency?

A broken AC is considered an emergency when it poses immediate health risks, particularly during extreme heat, or if there are electrical issues that could lead to a fire hazard.

How long does an AC replacement take?

An AC replacement typically takes 4 to 8 hours, though this can vary based on system complexity and installation site accessibility.

What maintenance does a furnace need?

A furnace requires regular maintenance, including filter replacement, inspection of burners and heat exchanger, and testing of safety features to ensure safe and efficient operation.

Dial One Johnson Plumbing, Cooling & Heating

Name: Dial One Johnson Plumbing, Cooling & Heating
Address: 307 W Avenue C, Midlothian, TX 76065, Midlothian, TX, US
Telephone: +1972-532-1490

Reviews read through Jul 25, 2026 · Scored Aug 11, 2026 · 107 reviews read

307 W Avenue C, Midlothian, TX 76065

972-532-1490

Visit Website

87.7

DFW Pros score

4.9★ 494 reviews107 read in full

Best for: Responsive service, knowledgeable technicians

Dial One Johnson, Plumbing, Heating and AC Repair

Listing details verified today.

Dial One Johnson Plumbing, Cooling & Heating stands out for its reliable and prompt service, with many customers noting the professionalism and knowledge of technicians. Review patterns show consistent satisfaction with communication and detailed explanations of work performed. However, there are some recorded issues with follow-up communication and pricing expectations, suggesting customers should clarify estimates prior to work.

What reviewers consistently mention

Several reviewers mention the professionalism and knowledge of the technicians, highlighting their ability to explain issues clearly and provide effective solutions.
Multiple customers appreciate the prompt and reliable service, often citing quick response times and the technicians' punctuality during appointments.

Watch out for

A few reviewers report delays in receiving estimates or communication after service requests, indicating potential issues with follow-up.
Several customers express concerns about the pricing exceeding their expectations, with some noting the costs felt high compared to initial estimates or expectations.

How the reviews break down

4.9★ average from 494 Google reviews

5★
477 97%
4★
10 2%
3★
1 0%
2★
2 0%
1★
4 1%

Low ratings are rare here — 1% of reviews are one or two stars.

Dial One Johnson offers plumbing services in Midlothian, focusing on jobs related to leaks, water heaters, and toilets. The team provides expertise to address various plumbing questions and concerns.

Services offered by Dial One Johnson Plumbing, Cooling & Heating

HVAC Contractor: This provider offers comprehensive HVAC services, including installation and maintenance for heating and cooling systems.
Air Conditioning Contractor: Expert installation and repair services for air conditioning systems are available to ensure optimal indoor climate control.
Air Conditioning Repair Service: The business provides prompt repair services for air conditioning units to restore comfort efficiently.
Air Duct Cleaning Service: Professional air duct cleaning services are offered to improve indoor air quality and system efficiency.
Gas Installation Service: Gas installation services are available for appliances, ensuring safe and efficient operation.
Heating Contractor: This service includes installation and maintenance of heating systems to ensure reliable warmth during colder months.
Hot Water System Supplier: The business supplies and installs hot water systems to meet residential and commercial hot water needs.
Plumber: Plumbing services include repairs, installations, and maintenance for various plumbing systems and fixtures.