Recessed Lighting Installation in Rohnert Park & Sonoma County
The real, industry-validated formula for spacing and fixture count — not just "add some can lights" — for homes and businesses, from a licensed local electrical contractor.
Why Sonoma County Homes & Businesses Call Bright Right First
- We use the real IES/IALD-validated spacing formula — not guesswork that leaves dark gaps or an overlit room.
- We won't oversell you on fixture count — over-installing is a real, common mistake we help you avoid.
- Licensed, insured, and available 24/7 — call (707) 791-5552 any time your project needs an electrician on-site.
★★★★★
5.0 · 27 Google reviews
20+ years
in the trade
CSLB #1156335
licensed · bonded · insured
Sonoma County
owned & operated
Recessed Lighting Installation
Why Sonoma County Chooses Bright Right
- Local, family-owned electrical contractor based right in Rohnert Park — not a call center routing you to a subcontractor.
- Straightforward answers on spacing, fixture count, and cost, explained before you sign anything.
- CSLB-licensed (#1156335) and available around the clock for anything that comes up along the way.

Recessed Lighting Installation
What Is Recessed Lighting Installation?
Recessed lighting installation covers installing can or pot light housings and trims flush into your ceiling, and the real skill here isn't the wiring — it's spacing and fixture count. Real formulas, validated by lighting industry organizations, determine how far apart fixtures should be and how many you actually need — get this wrong, and even well-chosen fixtures can leave dark gaps or create an overly bright, uneven room.
If you're upgrading an existing recessed fixture to LED rather than installing new housings, our LED Lighting Retrofits page covers the specific retrofit kit process. Bright Right Electric installs recessed lighting for homes and businesses across Sonoma County, as a CSLB-licensed electrical contractor (#1156335) based right in Rohnert Park.
Recessed Lighting Installation
Our Process
A recessed lighting installation moves through the same core stages:

01
Room Measurement
We measure your room's dimensions and ceiling height to establish the real numbers we'll design around.

02
Spacing Calculation
We calculate fixture spacing and wall offset using the real, validated formula for your ceiling height.

03
Fixture Count & Size Selection
We calculate how many fixtures you need and recommend the right size for your room and purpose.

04
Installation
We cut, wire, and mount each housing and trim according to the calculated layout.

05
Testing
We test every fixture and confirm even coverage across the room.

06
Final Walkthrough
We confirm everything looks and functions correctly, including any dimmer controls.

Recessed Lighting Installation
How Much Does Recessed Lighting Installation Cost?
Cost depends on the number of fixtures and whether you're installing new housings (requiring ceiling access) or using retrofit housings in an existing finished ceiling — a small single-room project costs less than a whole-home or larger commercial installation.
Recessed Lighting Installation
The Real Spacing Formula
This is the single most important number to get right: the industry-standard formula, validated by the Illuminating Engineering Society (IES) and the International Association of Lighting Designers (IALD), is to space recessed fixtures at half your ceiling height. For a standard 8-foot ceiling, that's roughly 4 feet between fixtures. A 9-foot ceiling calls for about 4.5 feet, and a 10-foot ceiling calls for about 5 feet.
The Wall-Offset Rule: Avoiding the "Cave Effect"
This is a real, named problem worth understanding: placing your first row of fixtures too far from the walls creates the "cave effect" — walls stay dark while the center of the room is over-lit. The fix is a real formula: distance from the wall should be roughly half your fixture spacing. If your fixtures are spaced 4 feet apart, position the first row about 2 feet from the wall.
How Many Fixtures Do You Actually Need?
A real, usable formula: multiply your room's square footage by the foot-candles of brightness you want, then divide by your fixture's lumen output. Real lumen references:
| Fixture Size | Typical Lumen Output |
|---|---|
| 4-inch LED downlight | 600–800 lumens |
| 6-inch LED downlight | 800–1,000 lumens |
Recessed Lighting Installation
4-Inch vs. 6-Inch: Which Size Do You Need?
Size depends on purpose as much as room size:
- 4-inch fixtures — suit task and accent lighting in smaller spaces like hallways, bathrooms, and closets, delivering more focused light. Typically spaced 4-5 feet apart.
- 6-inch fixtures — spread light more broadly, better suited to general ambient lighting in larger rooms. Typically spaced 5-7 feet apart.
On vaulted ceilings above 10 feet, directional gimbal trims help aim light downward effectively rather than losing it into the peak.
Wet-Rated Fixtures for Bathrooms
If you're installing recessed lighting over a shower or tub, this matters: a standard recessed fixture isn't safe or code-compliant in that location. A wet-rated fixture, identifiable by a sealed gasket trim, is required for moisture exposure.
The Honest Warning: Don't Over-Install
This is worth being direct about: installing too many recessed lights is a genuinely common mistake, creating a space that feels overly bright and more commercial than comfortable. The real formulas above exist to find the right number — not the maximum number.
Commercial Ceilings: A Different Approach
For commercial spaces with 14-16 foot ceilings, recessed lighting alone often isn't enough — light intensity drops off sharply with distance, so recessed fixtures are commonly combined with high bay or pendant fixtures to achieve proper illumination at that height. The same core spacing formula still applies, but the overall lighting plan needs to account for the added distance.
Recessed Lighting Installation
What's Included
Recessed lighting installation often works alongside these related services, each with its own dedicated page for more detail:
LED Lighting Retrofits
LED lighting retrofits covers converting an existing recessed can fixture to LED with a retrofit kit, without installing new housings — the resource for that specific process.
Chandelier Installation
Chandelier installation covers the statement centerpiece fixture that recessed lighting typically surrounds, filling in the room's general ambient lighting.
Pendant Lighting Installation
Pendant lighting installation covers task-focused fixtures over kitchen islands and tables, complementing recessed lighting's broader room coverage.
Lutron Installation
Lutron installation covers smart dimming control, letting your recessed lighting shift from full task brightness to a softer ambient glow.
Lighting Repair
Lighting repair covers diagnosing and fixing an existing recessed fixture that's flickering or has stopped working, rather than requiring a full reinstall.
Commercial Lighting Installation
Commercial lighting installation covers our full range of business lighting services, including how recessed fixtures fit into a broader commercial lighting plan.
Recessed Lighting Installation
Why Sonoma County Chooses Bright Right Electric
We calculate spacing and count, not eyeball it.
Real, industry-validated formulas mean your layout is genuinely correct, not just close enough.
We explain the "cave effect" before it happens to you.
Dark walls with an over-lit center is a real, avoidable planning mistake — we get the wall offset right from the start.
We won't oversell you on fixture count.
The right number of fixtures, not the maximum — we're honest about when a room genuinely needs fewer lights, not more.
We're licensed, insured, and available 24/7.
As a CSLB-licensed contractor (#1156335), we're reachable at (707) 791-5552 any time your project needs an electrician on-site.
08 ─────── Reviews
What Rohnert Park Customers Are Saying
Google Business Profile
5.0

Across 27 Google reviews
Recessed Lighting Installation
Serving Sonoma County Homes & Businesses
Bright Right Electric is based at 1150 Holly Ave in Rohnert Park, and we install accent lighting for homes and businesses throughout Sonoma County — from Rohnert Park and Santa Rosa to Petaluma and the surrounding communities along the Highway 101 corridor. Whatever feature you want highlighted, we bring the right technique to the job.

Questions
Frequently Asked Questions
How far apart should recessed lights be spaced?
The industry-standard formula, validated by the IES and IALD, is to space fixtures at half your ceiling height — for an 8-foot ceiling, that's roughly 4 feet between fixtures.
How many recessed lights do I need for a room?
Multiply your room's square footage by the foot-candles of brightness you want, then divide by your fixture's lumen output. A 168 sq ft room targeting 20 foot-candles needs roughly 5 fixtures at 800 lumens each.
4-inch vs. 6-inch recessed lights — which should I choose?
4-inch fixtures suit task and accent lighting in smaller spaces, spaced 4-5 feet apart. 6-inch fixtures spread light more broadly for general lighting in larger rooms, spaced 5-7 feet apart.
Why do my recessed lights look like spotlights?
This usually means the fixtures are spaced too far apart for your ceiling height. Following the half-ceiling-height spacing formula typically resolves this.
Can I install recessed lights over a shower?
Yes, but only with a wet-rated fixture, identifiable by a sealed gasket trim designed for moisture exposure — a standard fixture isn't code-compliant there.
How far should recessed lights be from the wall?
A reliable rule is half your fixture spacing — if your fixtures are spaced 4 feet apart, position the first row about 2 feet from the wall to avoid dark walls with an over-lit center.
New construction vs. remodel recessed lighting — what's the difference?
New construction housings install during framing before drywall goes up, while remodel or retrofit housings install into an existing finished ceiling without major demolition.
How much does recessed lighting installation cost?
Cost depends on the number of fixtures and whether you're installing new housings or using retrofit housings in an existing ceiling — a small single-room project costs less than a larger multi-room installation.
Can recessed lights be dimmed?
Yes, with an LED-compatible dimmer — pairing recessed lighting with the right dimmer lets you adjust brightness for different times of day or activities.
Can I install recessed lighting in a commercial space?
Yes, though at commercial ceiling heights of 14-16 feet, recessed lighting alone often isn't enough — it's commonly combined with high bay or pendant fixtures to achieve proper illumination.
Get in touch
Ready to Talk Through Your Project?
Call (707) 791-5552 or fill out the form below and we'll follow up with real design guidance for whatever you want to highlight.
Phone
(707) 791-5552
(tap to call)
Address
1150 Holly Ave, Rohnert Park, CA 94928
Hours
7am - 5pm & 24 hour emergency services available.
15 ─────── Full service detail
Electrical Panel Upgrades in Rohnert Park
Replacing an undersized or obsolete panel is the most common job we perform in Rohnert Park, and it's the one that unlocks everything else. If your home still runs original 100-amp service, a Federal Pacific Stab-Lok, or a Zinsco panel, you're working with equipment engineered for a much smaller electrical load — and, in the case of those two brands, with a documented history of breakers that fail to trip. Upgrading to 200-amp service makes EV charging, battery backup, heat pumps, and modern appliance loads possible without constantly tripping breakers. We size the new service to what your household actually needs, pull the permit, coordinate the PG&E disconnect and reconnect, and meet the inspector for final sign-off.
EV Charger Installation in Sonoma County
Bright Right installs Level 2 home charging sized to your vehicle and, just as importantly, to your panel's actual available capacity. We run the dedicated 240-volt circuit, mount and commission the charger, and handle the permit — installing Tesla Wall Connectors, universal J1772 and NACS units, and hardwired or plug-in setups across Rohnert Park, Petaluma, and Santa Rosa. The detail most homeowners don't hear until it's too late is that many Sonoma County panels can't support a Level 2 charger without a service upgrade first, so we run a load calculation before you buy equipment, not after. We can also pre-wire a second circuit if a second EV is anywhere in your future.
Standby Generators & Backup Power
Public safety power shutoffs are a fact of life in Sonoma County, and so are winter storms that take lines down in the hills. We install whole-house standby generators with automatic transfer switches that pick up the house within seconds of an outage, wire inlets and manual transfer switches for portable generators, and add whole-house surge protection so your equipment isn't damaged when the utility comes back online. We'll also tell you honestly which tier makes sense — not every home in Cotati or Penngrove needs a whole-house unit when a critical-loads panel that keeps the refrigerator, well pump, internet, and a few circuits alive costs a fraction as much.
Solar & Battery Systems
We handle new photovoltaic installation, battery storage, system additions, and remove-and-replace work when a roof needs attention or a system has failed — plus service on existing arrays that aren't producing what they should. If you inherited a solar system with the house and nobody can tell you how it's wired or whether it's still under warranty, we can assess it and give you a clear picture. Battery storage in particular has changed the math for Sonoma County homeowners: between shifting utility rate structures under NEM 3.0 and the frequency of outages, a battery paired with existing solar is often a better investment than adding more panels.
Interior & Exterior Lighting
Recessed and can lighting, full LED retrofits, under-cabinet lighting, dimmer and smart-switch installation, fixture and chandelier hanging, landscape lighting, and security and motion-sensor lighting for homes across Rohnert Park and the University District. On the commercial side we handle lighting retrofits for offices, retail spaces, and warehouses along the Commerce Boulevard corridor, including the fixture and control changes that come with California Title 24 compliance. Lighting is one of the few electrical upgrades where the difference is immediately visible, and it's frequently the cheapest way to make a dated room feel finished.
Electrical Troubleshooting & Repair
Breakers that trip for no obvious reason, circuits that go dead, lights that flicker when the dryer starts, outlets that no longer hold a plug, GFCIs that won't reset, a faint burning smell you can't locate. These are the calls where experience shows. We trace a fault to its real source instead of swapping parts and billing for guesses, which is why our repairs hold and why we get called in behind other contractors who couldn't find the problem. In older Sonoma County homes the cause is often a failing backstab connection, a corroded neutral, a rodent-damaged run in a crawlspace, or a decades-old junction box buried behind drywall.
Custom Homes & New Construction
Full electrical for ground-up residential builds, major remodels, and additions throughout Sonoma, Marin, and Napa County — load calculations and plan review, service and meter setup, rough-in, trim, and final inspection. We work with general contractors, designers, and owner-builders, and we're comfortable on high-end custom projects near Sonoma State University where the lighting design, low-voltage layout, and smart controls all have to be coordinated before a single wire goes in. Getting the details right at rough-in is what keeps a home safe and functional for the next forty years — and it's far cheaper than fixing it after the drywall is up.
Commercial Electrical & Tenant Improvement
Service upgrades, panel and subpanel work, dedicated circuits for equipment, lighting retrofits, EV charging for employee and customer parking, and full tenant-improvement electrical for offices, retail, restaurants, and light industrial space along Redwood Drive and beyond. We understand a commercial job runs on someone else's schedule, so we work around business hours when the scope requires it. From a single dedicated circuit to a complete build-out, you get one licensed contractor coordinating permits, PG&E, and inspection — with clear pricing and a clean, code-compliant result.
