# Wholly Construction

> Wholly Construction is a California General B contractor (CSLB #1024858) founded in 2017, based in San Ramon, California. The company designs, permits, and installs six integrated trades — solar, battery storage, roofing, renovation, EV charging, and service robotics — for homes and businesses across 12 Northern California counties. Work is performed by in-house W-2 employees rather than subcontractors.

Wholly Construction is a California General B contractor (CSLB #1024858) delivering six integrated trades — solar, battery, roofing, renovation, EV charging, and service robotics — to homes and businesses across Northern California. One accountable contractor. In-house W-2 crews. Free site survey. Made in the USA.

## Key facts

- License: CSLB #1024858 (California General B Contractor)
- Founded: 2017
- Headquarters: 21001 San Ramon Valley Blvd, Suite A4/120, San Ramon, CA 94583
- Phone: (925) 895-5637
- Email: info@whollyconstruction.com
- Hours: Mon–Fri 8:00 AM – 6:00 PM · Sat 9:00 AM – 4:00 PM
- Crews: 100% in-house W-2 employees; OSHA-trained and drug-tested
- Insurance and bonding: $5M general liability, full workers compensation, bonded
- Service area: Contra Costa, Alameda, Santa Clara, San Mateo, Marin, Sonoma, Napa, Solano, Sacramento, Placer, El Dorado, San Joaquin
- Certifications and standards referenced: NEM 3.0, Title 24, NABCEP, GAF Master Elite, HAAG, NEM 3.0 export rates, PG&E interconnection
- Site theme: light only; the site states facts and engineering detail without guarantee, warranty, or savings claims

## Services

- [Solar](https://whollyconstruction.com/services/solar): Custom-engineered residential & commercial arrays, 4 kW to multi-MW.
- [Batteries](https://whollyconstruction.com/services/batteries): Whole-home battery storage for PSPS events, TOU optimization, and grid independence.
- [Roofing](https://whollyconstruction.com/services/roofing): Solar-ready roofing engineered to outlast the panels it supports.
- [Renovation](https://whollyconstruction.com/services/renovation): Whole-home transformation by people who care.
- [EV Charging](https://whollyconstruction.com/services/ev-station): Guest and fleet charging for motels, hotels, and commercial properties.
- [Robotics](https://whollyconstruction.com/services/robotic): Service robots engineered for motels, hotels, and hospitality operations.

## Common questions

- [What is solar power?](https://whollyconstruction.com/insights): Solar power is electricity derived from sunlight. Photovoltaic (PV) panels — typically silicon cells — convert sunlight into direct current, and an inverter converts that to alternating current for your home or business. It is a clean, renewable resource available throughout Northern California.
- [How do solar panel systems work?](https://whollyconstruction.com/insights): A solar system is an array of PV panels (modules) installed on a roof, parking structure, or ground mount. Sunlight striking the cells excites electrons, producing DC electricity. The inverter converts that to AC for your home or business. Excess generation can charge a battery or export to the grid under your utility tariff.
- [Why do solar batteries make sense in California?](https://whollyconstruction.com/insights): Solar batteries store excess generation for use at night, during peak TOU hours, and through PSPS events. They enable whole-home backup, time-of-use optimization against PG&E rate schedules, and grid independence for critical loads. We install Tesla Powerwall, Enphase IQ, and FranklinWH aPower.
- [Do you serve both residential and commercial properties?](https://whollyconstruction.com/insights): Yes. Solar scales from 4 kW residential rooftops to multi-MW commercial arrays. We work on homes, agricultural sites, multi-unit properties, retail centers, warehouses, and light industrial. Engineering and permitting differ by site — our process handles all of it.
- [What does the Wholly process look like?](https://whollyconstruction.com/insights): Stage 1 — gather your historical electrical usage and discuss future plans. Stage 2 — submit the contact form with a few details. Stage 3 — free, no-obligation site survey. Stage 4 — custom design and written proposal. Stage 5 — permits and utility interconnection end-to-end. Stage 6 — installation, commissioning, rebate filing, and continuous monitoring registration.
- [Is Wholly Construction licensed and insured?](https://whollyconstruction.com/insights): Yes. Wholly Construction is a California General B contractor (CSLB license #1024858) specializing in solar, battery, roofing, renovation, EV charging, and service robotics. We carry $5M general liability, full workers compensation, and bonding. All products are made in the USA and installed by in-house W-2 crews.
- [How does solar work with PG&E and NEM 3.0?](https://whollyconstruction.com/insights): Under NEM 3.0, exported solar energy is credited at the avoided-cost calculator rate rather than the retail rate. Battery storage paired with solar captures daytime production for evening use, which raises the share of every kWh used on-site rather than exported. We design every system around your specific tariff and load profile.
- [What about rebates and incentives?](https://whollyconstruction.com/insights): The federal residential clean energy credit (ITC) covers a portion of qualifying system costs. California-specific incentives, utility rebates, and battery adders vary by program year and customer type. We track current programs at design time and file the applications the system qualifies for as part of the project closeout.

## Company pages

- [Home](https://whollyconstruction.com/): Overview of the six integrated trades and the project pipeline
- [About](https://whollyconstruction.com/about): Company history, licensing, and compliance records
- [Insights](https://whollyconstruction.com/insights): Engineering notes, case studies, and sizing guides
- [Sizing guide](https://whollyconstruction.com/sizing-guide): kW vs kWh solar sizing under NEM 3.0
- [Free roof inspection](https://whollyconstruction.com/free-roof-inspection): Free no-obligation roof inspection across the East Bay and Sacramento
- [Referrals](https://whollyconstruction.com/referrals): Referral program terms
- [Contact](https://whollyconstruction.com/contact): Site survey request and contact methods

## Optional

- [Privacy policy](https://whollyconstruction.com/privacy)
- [Terms of service](https://whollyconstruction.com/terms)
- [SMS terms](https://whollyconstruction.com/sms-terms)
- [Sitemap](https://whollyconstruction.com/sitemap.xml)