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TRUSTED BY WILLIS, TX HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon46
    Verified generator installs reviews

Find Generator install pros in Willis

Avatar for A & A GenPro Electrical
A & A GenPro Electrical
4.3(
67
)

Serving Willis, TX and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"GenPro installed a Home Generator for us. Andrew Spitzmueller and his team were dependable and reliable. Did what they said they would do. When they encountered roadblocks with sub-contractors and permit inspectors, they worked diligently to resolve the situation. They are honest and trustworthy people. Highly recommend them."
Demar Install
McDermott
Demar Install
Cornell
30 kW

+3

Response time10 hrs
Recommended by92%of homeowners
Avatar for Storm Guardian Generators
Storm Guardian Generators
4.0(
12
)

Serving Willis, TX and surrounding areas

Approved (Corporate)

In business since 2006

Free estimates

Emergency services offered

"Ronnie, Pam, Cindy and crew were wonderful to work with.  There are several steps to the process, given potential permits needed and coordination of service dates with Center Point Energy.  They kept me informed and walked me through the process at each step. 
I got bids from three companies.  Storm Guardian's bid was the lowest and included the most features.  It included Mobile Link, which the other two did not even mention.  Being able to remotely monitor the generator and receive alerts on my IPhone and on-line when the generator turns on/off is great.  Almost as important to me, they came through on their promise of near turn key.  The other bids had me doing a lot of the leg work with Center Point.  With Storm Guardian, I only had to make two phone calls and be home half a day to authorize Center Point's replacement of the gas meter. 
I am very pleased with Storm Guardian and can recommend them without reservation.  Great work, great people.
"
Additional Photos
Response time1 day
Response rate99%
49 neighbors recently requested a quote
Avatar for E. A. Solar & Home Services, LLC
E. A. Solar & Home Services, LLC
5.0(
18
)

Serving Willis, TX and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Very professional and knowledgeable team. Work was done on time and within a reasonable price. The work area was left as clean as before they started. I highly recommend Aaron and his team and I won't hesitate to call on them again."
Solar system
Solar system
Solar system
Solar system
Solar system

+3

3 neighbors recently requested a quote
Recommended by61%of homeowners
Avatar for Mister Sparky of Conroe
Mister Sparky of Conroe
4.5(
14
)

Serving Willis, TX and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"I rarely write reviews, but I am writing this review to express my utmost appreciation for the exceptional service provided by Mister Sparky during the challenging times of Hurricane Beryl. Their dedication to their customers is truly commendable. Jonatan P. surveyed and provided an estimated cost on the spot as well as wealth information about what to most cost-effective Interlock Switch to add to my circuit breaker. This happened the Friday before the hurricane and early next week in the mist of all the drop pour Mister Sparky team of two quick installed and provided a temporary cable from the circuit breaker to my portable generator. From the moment I reached out, their team was responsive, professional, and empathetic to the situation at hand. Despite the severe weather conditions, they were able to provide prompt and efficient service, ensuring our safety and comfort during a time of great need. Their technicians were not only skilled and knowledgeable, but also demonstrated a level of care and respect that was truly heartening to see. They took the time to explain the process, answer all our questions, and ensure we were comfortable with the solutions provided. Moreover, their commitment to following all safety protocols and guidelines was evident, providing us with peace of mind in an otherwise stressful situation. I cannot recommend Mister Sparky highly enough. Their exceptional service during Hurricane Beryl was a testament to their professionalism, customer-centric approach, and resilience. Thank you, Meghan, Jonatan, and Kevin, for going above and beyond!"
Review customer´s options
Panel upgrade
Smoke detectors
Response time1 day
38 neighbors recently requested a quote
Recommended by69%of homeowners
Big Tex Electric
New to Angi

Serving Willis, TX and surrounding areas

Approved

Hi, I’m Stephen Pilbeam, a licensed residential electrician proudly serving the Magnolia, TX area. With years of hands-on experience troubleshooting, wiring, and upgrading home electrical systems, I’m committed to delivering safe, high-quality work you can trust. Whether you need a quick repair, a new generator, a full-panel upgrade, or help with new lighting or circuits, I treat every job with care and professionalism.\nMy goal is simple: get the job done right the first time while keeping your home safe and your project stress-free. I take pride in clear communication, fair pricing, and leaving every space cleaner than I found it.\nFrom small fixes to major upgrades — I’m here to help power your home with confidence.

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Generator Install questions, answered by experts

Homeowners can often access federal tax credits, such as the Investment Tax Credit (ITC), which covers a percentage of installation costs. Many states and utilities offer additional rebates, grants, or performance-based incentives. These programs can significantly lower your upfront investment. Check the Database of State Incentives for Renewables and Efficiency (DSIRE) or contact your local energy office for current offers.

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

The Willis, TX homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.