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Local services · San Antonio, TX/Updated June 13, 2026

The Best Generator Installers in San Antonio, TX

Power outages can disrupt daily life, making reliable generator installation essential. Here are the top-rated services in San Antonio.

Editorially independent7 companies evaluated
cover story
★ Editor's ChoiceHunter Service Group Electrical, Heating, & AC Repair
96Score
Latest update · June 13, 2026: Initial ranking published. 7 San Antonio-metro generator installation businesses evaluated, top 7 ranked by Vetted Score.

In San Antonio, where summer storms and power outages can be frequent, having a reliable generator is crucial for homeowners and businesses alike. The right generator installation not only ensures comfort and safety but also peace of mind during unexpected outages.

To help you find the best generator installers in the area, we evaluated seven local businesses based on customer ratings, number of reviews, and overall service quality. Our goal is to provide you with transparent and trustworthy options tailored to your needs.

7providers evaluated in San Antonio
4.80average rating across the field
2.6Kcustomer reviews analyzed

Cityvetted analysis of public Google review data, updated June 13, 2026.

How much does this service cost in San Antonio? See the price breakdown →

Our top picks

At a glance · three categories
Editor's Choice
96Score

With a stellar rating of 4.9 from 1,037 reviews, Hunter Service Group is highly praised for its prompt service and knowledgeable technicians.

Read full review
Best Value
95Score

Evenflow Home & Commercial Services

★★★★★4.9(1,014 reviews)

Evenflow Home & Commercial Services boasts a 4.9 rating from 1,014 reviews, with customers praising their efficient service and competitive pricing.

Read full review
Most Reviewed
94Score

Current Power Technologies

★★★★★4.9(234 reviews)

Current Power Technologies holds a 4.9 rating across 234 reviews, with clients commending their knowledgeable staff and efficient installations.

Read full review

All 7, compared

Data as of June 13, 2026
BusinessVetted ScoreGoogle ratingReviewsBest for
1
96Score
4.9★★★★★
1,037Comprehensive generator installations and customer service
2
95Score
4.9★★★★★
1,014Affordable generator installations
3
94Score
4.9★★★★★
234Quality and reliability in installations
4
91Score
4.8★★★★★
162Quick response times and friendly service
5
90Score
4.8★★★★★
116Diverse generator options and purchasing guidance
6
89Score
4.9★★★★★
31Clients looking for personalized service
7
78Score
4.4★★★★★
36Basic installations at a lower price point
Methodology

How we evaluated all 7 providers.

We assessed each generator installation service by analyzing their customer reviews and ratings from multiple platforms. Our findings reflect real user experiences, ensuring you get an honest overview of what each company offers. Importantly, no business pays for placement in our rankings.

This list is refreshed monthly to incorporate the latest data and feedback, allowing us to present the most current and relevant information. Our commitment is to provide you with the best choices for generator installation in San Antonio.

The Vetted Score: six weighted factors

Customer sentiment25%
Rating quality20%
Review volume & velocity20%
Website trust signals15%
Service breadth10%
Business longevity10%

Sentiment is measured by AI analysis of review text, recency-weighted, with verified-pattern checks to discount suspicious review bursts.

Full reviews

The rankings · in order
1
★ Editor's Choice

Hunter Service Group Electrical, Heating, & AC Repair

★★★★★4.9(1,037 reviews)
96Score

With a stellar rating of 4.9 from 1,037 reviews, Hunter Service Group is highly praised for its prompt service and knowledgeable technicians. Reviewers appreciate their professionalism and thoroughness during installations. They excel in providing tailored solutions for both residential and commercial needs. However, their high demand can lead to longer wait times for appointments.

Pros

  • Highly rated for customer service
  • Experienced technicians
  • Wide range of generator options

Cons

  • Longer wait times for appointments
  • Higher pricing than some competitors
Best forComprehensive generator installations and customer service
Service areaSan Antonio and surrounding areas
Typical pricing$2,000 to $7,000
2
Best Value

Evenflow Home & Commercial Services

★★★★★4.9(1,014 reviews)
95Score

Evenflow Home & Commercial Services boasts a 4.9 rating from 1,014 reviews, with customers praising their efficient service and competitive pricing. They are known for their attention to detail and quality installations. Ideal for budget-conscious consumers, they provide excellent value without compromising on quality. However, some customers noted occasional scheduling issues during peak seasons.

Pros

  • Great value for the price
  • Prompt and efficient service
  • Positive customer feedback

Cons

  • Occasional scheduling conflicts
  • Limited warranty options
Best forAffordable generator installations
Service areaSan Antonio and nearby areas
Typical pricing$2,000 to $5,500
3
Most Reviewed

Current Power Technologies

★★★★★4.9(234 reviews)
94Score

Current Power Technologies holds a 4.9 rating across 234 reviews, with clients commending their knowledgeable staff and efficient installations. They focus on providing high-quality products and services, making them a top choice for those seeking reliability. While their customer service is praised, some clients mentioned the need for clearer communication during the installation process.

Pros

  • High-quality products
  • Knowledgeable technicians
  • Reliable service

Cons

  • Communication issues during projects
  • Smaller service area compared to others
Best forQuality and reliability in installations
Service areaSan Antonio
Typical pricing$2,000 to $6,000
4

Firefly Electric Service

★★★★★4.8(162 reviews)
91Score

Firefly Electric Service has earned a 4.8 rating from 162 reviews, with clients appreciating their prompt responses and friendly service. They are particularly noted for their thorough assessments and efficient installations. However, some customers reported inconsistencies in follow-up service, which could affect long-term satisfaction. That is a substantial body of feedback for a local operator, enough to trust the rating rather than credit a lucky streak. Most of what reviewers hire it for is quick response times and friendly service. It serves San Antonio and surrounding areas, with $2,500 to $6,500 pricing, and the honest trade-offs are inconsistent follow-up service and limited product options.

Pros

  • Friendly and responsive team
  • Thorough assessments
  • Quick installations

Cons

  • Inconsistent follow-up service
  • Limited product options
Best forQuick response times and friendly service
Service areaSan Antonio and surrounding areas
Typical pricing$2,500 to $6,500
5

Generator Supercenter of San Antonio

★★★★★4.8(116 reviews)
90Score

With a 4.8 rating from 116 reviews, Generator Supercenter is recognized for its extensive selection of generators and knowledgeable staff. Customers appreciate the thorough guidance provided during the purchasing process. They are ideal for those looking for a wide variety of options. However, their installation services may not be as robust as other top contenders.

Pros

  • Wide selection of generators
  • Knowledgeable staff
  • Good customer support

Cons

  • Installation services can be lacking
  • Higher prices for some models
Best forDiverse generator options and purchasing guidance
Service areaSan Antonio
Typical pricing$2,000 to $7,000
6

GoGEN Services, LLC

★★★★★4.9(31 reviews)
89Score

GoGEN Services, LLC has a promising rating of 4.9 from 31 reviews, indicating strong early customer satisfaction. They are praised for their efficient service and knowledgeable staff during installations. While their services show great potential, the thin review base leaves some uncertainty regarding long-term reliability. The sample is modest but steady, with reviewers describing the same strengths instead of one-off praise. Most of what reviewers hire it for is clients looking for personalized service. It serves San Antonio, with $2,000 to $5,000 pricing, and the honest trade-offs are thin review base and limited service history.

Pros

  • Efficient service
  • Knowledgeable technicians
  • Positive early reviews

Cons

  • Thin review base
  • Limited service history
Best forClients looking for personalized service
Service areaSan Antonio
Typical pricing$2,000 to $5,000
7

So-Tex Engine & Generator

★★★★★4.4(36 reviews)
78Score

So-Tex Engine & Generator has a 4.4 rating from 36 reviews, with customers noting their reliable service and decent pricing. They are a solid choice for basic generator installations. However, their limited number of reviews and lower rating compared to others suggest that they may not yet offer the same level of service as more established competitors.

Pros

  • Reliable service
  • Decent pricing
  • Basic installation options

Cons

  • Limited reviews
  • Lower overall rating
Best forBasic installations at a lower price point
Service areaSan Antonio
Typical pricing$1,500 to $4,000
Before you book

How to choose a generator installer in San Antonio

Choosing the right generator installer involves evaluating several key factors. Here are some tips to guide your decision-making process.

Check Reviews and Ratings

Look for businesses with high ratings and plenty of reviews to gauge customer satisfaction.

Evaluate Experience

Consider how long the company has been in business and their experience with generator installations.

Compare Pricing and Services

Get quotes from multiple installers and compare what services are included in the pricing.

Ask for References

Request references from past customers to ensure their work quality and reliability.

What it costs

What generator installation costs in San Antonio

The cost of generator installation can vary based on the type and size of the generator, as well as the complexity of the installation. Here’s a general pricing guide for San Antonio.

Portable Generators$300 to $1,200, depending on wattage and brand.
Standby Generators$2,000 to $7,000, including installation and permits.
Transfer Switch Installation$300 to $800, necessary for safe operation with existing home wiring.
Maintenance Services$100 to $300 annually, essential for optimal performance.

Frequently asked questions

How much does generator installation cost in San Antonio?

Generator installation costs typically range from $1,500 to $7,000, depending on the type of generator and installation complexity.

What factors affect the cost of generator installation?

Factors include the type of generator, installation complexity, and any additional features or permits needed.

How often is this ranking updated?

We re-run the full analysis monthly with fresh review data. Last updated June 13, 2026.

Our verdict

For most San Antonio homes: Editor's Choice Hunter Service Group

For those seeking the best generator installation in San Antonio, Hunter Service Group stands out with unmatched customer service and expertise. Following closely are Evenflow Home & Commercial Services, known for their value, and Current Power Technologies, praised for their reliability and quality installations.