Resources & Education · Pillar Guide

Choosing electrical products that don't get replaced in five years.

Buyer guides for the products we install most often — EV chargers, generators, panels, smart switches, surge protection. Product recommendations based on what we actually install and what survives in Marin conditions.

Written bySteven Lockhart

Reviewed byAlex Towery · C-10 #989290

Updated: June 2026 · Read: 7 min

11 yrsMarin electrical work

C-10CSLB licensed contractor

1st passInspection rate

48 hrTypical estimate turnaround

Key Takeaways

Buy-decision quality matters more than install-quality for long-term cost — a top-tier product installed adequately outlasts a mediocre product installed perfectly.
For EV chargers, the meaningful choice is amperage (32A vs 40A vs 48A) and connection type (NEMA 14-50 vs hardwired); brand differences are smaller than most homeowners think.
For standby generators, the meaningful choice is fuel source (natural gas vs propane) and capacity (14kW vs 22kW vs 26kW); brand reliability is bifurcated between top-tier (Generac, Kohler, Cummins) and avoid.
Smart-switch selection should follow the control system you plan to commit to (Lutron Caseta, Lutron RA3, Crestron, Control4) — not the other way around.
Surge protection is one of the highest-ROI infrastructure upgrades in Marin — a $400-$680 Type 2 SPD protects every appliance and electronic in the home.

01 — OverviewWhat Buyer Guides actually covers in Marin.

The biggest preventable source of buyer's-remorse on electrical projects is the product-selection step, not the install. A homeowner who picks the wrong EV charger pays $1,400-$3,200 to install it, then pays again 18 months later when they realize the 32A unit can't actually charge their vehicle overnight at full speed. The same homeowner picking the right product upfront avoids the second visit entirely.

This buyer-guide library covers the products we install most often, with honest assessments of what works in Marin conditions over 5-10 year horizons. The goal isn't to push specific brands — it's to give homeowners the criteria to make a buy-decision that holds up across multiple PSPS seasons, atmospheric-river events, and the normal cycle of home electrification.

Definition

An electrical buyer guide compares products on the criteria that matter for long-term durability and total cost of ownership — installation requirements, manufacturer support quality, parts availability over 10+ years, and Marin-specific environmental factors (PSPS exposure, coastal humidity, seismic considerations).

Why brand bifurcation matters

In many electrical product categories, brand quality bifurcates between top-tier and everything else. Top-tier brands have 10+ year parts availability, dedicated technical support, and durability under Marin conditions. Lower-tier brands often look identical at purchase but lack support 3-5 years downstream.

Marin-specific factors

PSPS exposure means generator and battery products see harder use than national averages. Coastal humidity affects outdoor electrical hardware. Seismic considerations affect panel mounting and conduit specifications. Buy decisions should account for these.

For the broader context this guide supports, see our Resources & Education overview.

Explore the Full Guide

Buyer guides organized by product category. Each guide covers the criteria that matter for the long-term durability decision, with our actual install recommendations.

Three guides to read first

Most-Requested

EV Charger Buyer Guide for Marin

Amperage selection (32A vs 40A vs 48A), connection type (NEMA 14-50 vs hardwired), and brand assessments based on actual install data.

Explore the guide →

Cornerstone

Standby Generator Buyer Guide

Fuel source choice, capacity sizing, brand reliability comparison across Generac, Kohler, Cummins, Briggs & Stratton.

Explore → Foundation

Smart Switch Platform Comparison

Lutron Caseta vs Lutron RadioRA 3 vs Crestron vs Control4 — when each is the right choice based on home size and ambition.

Explore →

Browse the Full Library

EV charging

Backup power

Smart home

Panel & infrastructure

02What we install most often — and why.

Our most-installed brands across each category, with the reasoning behind our defaults. These aren't paid recommendations — they're what we actually carry on the truck and use on Marin jobs.

EV chargers: Tesla Wall Connector, ChargePoint Home Flex, Wallbox Pulsar Plus

Tesla Wall Connector for Tesla-primary households (better integration); ChargePoint for universal use; Wallbox for design-conscious installs.

Standby generators: Generac and Kohler

Generac for mid-tier home generator installs (best parts availability in Marin); Kohler for estate-class installs (longer warranty, quieter operation).

Panels: Square D QO and Eaton CH

Square D QO for residential default (best breaker availability); Eaton CH for commercial or where space matters.

Smart switches: Lutron Caseta and Lutron RA3

Caseta for typical homes (wireless, easy retrofit); RadioRA 3 for estates (wired, scalable to 200+ devices, scene depth).

03What we don't install — and why.

Some product categories have brands we actively avoid based on field experience. Federal Pacific and Zinsco panels we discussed in the safety guide. Beyond panels, we've stopped installing several lower-tier generator brands due to parts-availability issues 3-5 years after install (we won't name them publicly to avoid legal exposure, but we explain on the quote call which brands we'd skip).

For EV chargers, we avoid no-name imports and unbranded units sold on online marketplaces — UL listing is questionable, manufacturer support is non-existent, and parts replacement at the 5-year mark is often impossible. The savings of $200-$400 on the unit don't justify the replacement cost downstream.

04How to read product spec sheets intelligently.

Three criteria matter most when evaluating any electrical product spec sheet.

UL listing and certifications

UL-listed products meet US safety standards. Look for UL 2231 (EV chargers), UL 1741 (inverters), UL 1449 (SPDs), UL 489 (circuit breakers). Products without UL listing should not be installed in residential applications.

Manufacturer warranty and US support

Look for at least 5-year manufacturer warranty (10+ for major capital items like generators and panels), with US-based technical support and parts availability. Warranty length is the manufacturer's vote of confidence in their own product.

Parts availability at 10+ years

For major capital items (generators, panels, hardwired EV chargers), the question that matters most is whether replacement parts will be available a decade after install. Top-tier brands publish parts catalogs going back 20+ years; lower-tier brands may not support a model 5 years after launch.

05Buying through us vs supplying your own equipment.

For most products, we provide and install with full warranty coverage — both manufacturer warranty (on the product) and our labor warranty (on the install). For homeowners who prefer to provide their own equipment (often for EV chargers, sometimes for generators or specific lighting fixtures), we install supplied equipment with a slightly different warranty structure — our labor warranty applies to install workmanship, but the manufacturer warranty is the homeowner's responsibility to navigate if a product issue arises.

Either path works. The choice usually comes down to whether the homeowner has a strong product preference (Tesla Wall Connector, specific Lutron keypad finish, custom lighting fixture) versus wanting one accountable party for both product and install. We document the choice clearly on the estimate so warranty boundaries are explicit upfront.

Frequently Asked Questions

Do you only install certain brands?

No — we install most reputable brands, and we install homeowner-supplied equipment when that's what the homeowner prefers. We do have brands we recommend (covered in our buyer guides) and brands we won't install on quality grounds (covered with the homeowner directly on the quote call). The recommendation isn't a brand-loyalty thing; it's based on what we've seen survive in Marin conditions over the past decade. We're happy to discuss alternatives if a homeowner has a different preference.

Can I bring my own EV charger or generator?

Yes, for most products. EV chargers in particular are often homeowner-supplied — many homeowners get them at Tesla service centers, Costco, or directly from Amazon, then have us install. We install supplied equipment with our standard labor warranty, but the manufacturer warranty is the homeowner's relationship to navigate. For generators, homeowner-supplied is less common since the install involves specialized coordination (gas/propane connection, pad work, ATS), but it's possible — usually with a slight discount on our package since we're not providing the unit.

What EV charger amperage should I buy?

For most Marin households with a single Tesla or comparable EV, 40A hardwired is the sweet spot — fast enough to fully charge most batteries overnight, modest enough to not require panel upgrade in many cases. 32A is adequate for shorter-range vehicles or homeowners who drive less than 30 miles per day. 48A is right for households with longer commutes, multi-EV setups, or future-proofing against a larger second vehicle. We do a load calc as part of every quote to confirm what amperage your panel supports without requiring an upgrade.

Is a 22kW generator enough for my home?

For most Marin single-family homes (2,000-3,500 sqft, gas-cooking, gas-water-heating, gas-furnace), 22kW supports whole-home power with normal load management. For all-electric homes (heat pump, induction range, EV charging), 26kW is the better choice; some larger all-electric estates need 30-36kW. The right answer comes from a real load calc — we won't quote a generator without running the numbers for your specific home and load profile. Undersized generators cause more long-term problems than oversized ones; we err toward right-sized or slightly above.

Which smart-switch platform should I commit to?

For typical Marin single-family homes (under 30-40 switch locations), Lutron Caseta is the right answer — wireless, easy to retrofit, no need to open walls, app-controllable, 12+ year manufacturer track record. For estate-class homes (50-200+ control points, integration with shades and AV), Lutron RadioRA 3 is the right platform — wired, scalable, deep customization. For full home automation with AV integration, Crestron Home or Control4 — both require a certified integrator to coordinate. The platform choice should come first; switch product selection follows from that decision.

Are top-tier brands actually worth the price premium?

For long-life capital items (generators, panels, EV chargers, smart-home platforms), yes — the premium typically pays back through parts availability, warranty depth, and lower long-term failure rates. For consumable items (outlets, switches, dimmers in non-smart applications), the gap between mid-tier and top-tier is smaller and the durability advantage is less material. The buyer's-remorse risk concentrates in the long-life category. A $400 cheaper generator that fails at year 6 and can't be repaired isn't a saving.

How We Reviewed This Page

Reviewed against current California Electrical Code (Title 24, Part 3) and 2023 NFPA 70 (NEC) provisions applicable to the topic.
Pricing ranges reflect actual 2026 Towery Electric quote data from Marin County jobs — not third-party industry averages.
Permit and inspection timing reflects current AHJ practice in Novato, San Rafael, Mill Valley, and unincorporated Marin County as of mid-2026.
Technical review by Alex Towery, founder and C-10 #989290 holder, with 11+ years of California electrical work.
All factual claims about code requirements were verified against primary sources (CSLB, CARB, PG&E, AHJ) at time of publication.

References

This guide reflects Towery Electric's professional standards as a California-licensed C-10 electrical contractor and is for general information. Site conditions, panel configurations, code amendments, and permit-authority requirements vary; final scoping, sizing, and code compliance for your specific address are determined on a paid site assessment. We follow California Electrical Code (Title 24, Part 3) and applicable NFPA 70 (NEC) editions adopted by your AHJ.