Whole House Generators in Boerne & the surrounding Texas Hill Country

Portable generators have their place for tailgates and job sites, but when you want dependable backup power for your entire home, a whole-house generator is the smarter, safer choice. D'Spain Sales and Service installs, replaces, maintains, and repairs standby generators in Boerne, TX. We integrate the system directly with your electrical service—manual or automatic transfer—so essential circuits, lighting, refrigeration, and HVAC stay on when the grid goes down.

Family owned and operated since 1974, we pair expert workmanship with clear communication and fair pricing. Whether you need a new whole-house generator designed around your home’s load or fast repairs for an existing unit, our licensed electricians deliver reliable results—backed by a 100% satisfaction guarantee.

Trust Our Professional Installation Service

Even premium equipment underperforms if it’s installed poorly. Our team handles permitting, pad prep, fuel coordination (natural gas or propane), code-required clearances, and transfer switch wiring. We size the generator by performing a load assessment, then commission the system, verify voltage and frequency, and walk you through weekly self-test settings and care. If performance ever slips, we troubleshoot and correct the issue the right way.

Automatic Standby Generators Make Outages Simple

An automatic standby generator monitors utility power and starts within seconds of a failure—no cords or manual switches. The transfer switch safely shifts selected circuits or your entire service to generator power, then returns to utility when power is restored. It’s hands-off, fast, and designed for extended runtimes during Hill Country storms.

Our Experts Can Guide You Every Step of the Way

Choosing the right whole-house generator is easier with a pro on your side. We’ll help you compare fuel types, noise ratings, placement, and kW capacity based on your priorities—HVAC tonnage, refrigeration, medical devices, well pumps, home office, and more. Already have a generator that’s struggling to start or failing self-tests? We can repair it, and if replacement makes better sense, we’ll show clear options and pricing.

• Design & sizing: kW load calculations for essential or whole-home coverage
• Seamless integration: automatic or manual transfer switches, panel coordination
• Maintenance programs: oil/filter changes, battery checks, diagnostics, firmware updates
• Repair & replacement: Fast diagnostics, quality parts, modern, quieter models when it’s time to upgrade

Ready for worry-free backup power? Contact D'Spain Sales and Service to schedule whole-house generator installation, replacement, maintenance, or repair in Boerne, TX.

Whole-House Generator FAQs

How big should my home generator be?

Size depends on the circuits you want powered—A/C or heat, refrigeration, pumps, medical devices, and lighting. We run a load calculation to recommend the right kW for essential circuits or full-home coverage.

Which fuel is best—natural gas or propane?

Natural gas offers convenience where service is available. Propane provides reliable on-site storage. We’ll match fuel to availability, runtime needs, and local codes.

Where can the generator be placed?

Outdoors on a level pad with code-required clearances from windows, doors, and vents. We verify setbacks, HOA rules, and safe exhaust routing during your site visit.

How often does a standby generator need service?

At least annually for oil, filters, battery, and diagnostics—plus a brief weekly or monthly exercise cycle. We set the self-test and provide a simple maintenance schedule.